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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Theoretical study of the microhydration of 1-chloro and 2-chloro ethanol as a clue for their relative propensity toward dehalogenation</strong>
Subject
The topic of the resource
TERMODINAMICA
COMPUESTOS ORGANOCLORADOS
CLOROETANOL
BIBLIOGRAFIA NACIONAL QUIMICA 6530 |a 2019
2019
Abstract
A summary of the resource.
This work reports a computational analysis of hydrogen‐bonded clusters of mono‐, di‐, tri‐, and tetrahydrates of the chlorohydrins CH3CHClOH (1ClEtOH) and CH2ClCH2OH (2ClEtOH). The goal of the study is to assess the role of the water solvent into the facilitation of the initial step for dehalogenation of these compounds, a process of interest in several contexts. Molecular orbital methods (MP2), density functional methods (B3LYP, M06, and ωB97X‐D), and composite model chemistries (CBS‐QB3, G4) were employed to investigate the structure, electronic distribution, and hydrogen‐bonded structure of seven monohydrates, six dihydrates, five trihydrates, and five tetrahydrates of both species. Standard reaction enthalpy and standard Gibbs free reaction energy (urn:x-wiley:00207608:media:qua25931:qua25931-math-0001) were computed for all aggregates with respect to n independent water molecules and with respect to the dimer, trimer, and tetramer of water, respectively, in order to evaluate stability and hydrogen bonding network. The influence of the water chains on the length and vibrational frequencies, especially of the CCl and OH bonds, was evaluated. Hydrogen bonding in the complexes is discussed at length.
Creator
An entity primarily responsible for making the resource
<strong>Petsis, George</strong>
<strong>Salta, Zoi</strong>
<strong>Kosmas, Agnie Mylona</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjO5a_q6r_mAhX1IbkGHWsNAxYQFjAAegQIBBAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Da7868d1a46654e7a04ba7167141502086fa0cfad8b13463f75d90af715685994bc8f3eafaad6f6d2f6647277c9782143df93695c8a7d8e14295323ca2e2847d3%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw3DgPJlf--GOsjsu4KZ-hpA" target="_self"><strong>Ventura, Oscar N.</strong></a>
Source
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International Journal of Quantum Chemistry v. 119, no. 17, 2019. -- 15p.--e25931
Publisher
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Wiley
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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Artículo
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DOI: 10.1002/qua.25931
Cloroetanol
Compuestos Organoclorados
Termodinámica
-
https://riquim.fq.edu.uy/files/original/700db880329d3bf036b005491780547e.pdf
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
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Title
A name given to the resource
<strong>Rubidium−Alkaline-Earth Trifluoroacetate Hybrids as Self- Fluorinating Single-Source Precursors to Mixed-Metal Fluorides</strong>
Subject
The topic of the resource
METALES
RUBIDIO
CRISTALES HIBRIDOS BIMETALICOS
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Three novel bimetallic hybrid crystals featuring rubidium–alkaline-earth metal pairs and trifluoroacetato ligands were synthesized, and their utility as self-fluorinating single-source precursors to the corresponding mixed-metal fluorides was demonstrated. Rb2Mg2(tfa)6(tfaH)2·3H2O, RbCa(tfa)3, and RbSr2(tfa)5 (tfa = CF3COO–; tfaH = CF3COOH) were synthesized in both single-crystal and polycrystalline forms via solvent evaporation. Their crystal structures were solved using single-crystal X-ray diffraction (XRD), and chemical purity was confirmed using thermal analysis (TGA/DTA). Metal–oxygen–metal connectivity in Rb2Mg2(tfa)6(tfaH)2·3H2O was restricted to four-metal building blocks. In contrast, RbCa(tfa)3 and RbSr2(tfa)5 were found to be extended inorganic hybrids (Cheetham et al. Chem. Commun. 2006, 0, 4780−4795) exhibiting infinite metal connectivity in three and two dimensions, respectively. Systematic analysis of the coordination modes of the trifluoroacetato ligand revealed its ability to bridge alkali and alkaline-earth metals. Rietveld analysis of powder X-ray diffraction data (PXRD) showed that thermal decomposition of Rb2Mg2(tfa)6(tfaH)2·3H2O and RbCa(tfa)3 under inert atmosphere yielded crystalline RbMgF3 and RbCaF3, respectively. This solid-state transformation occurred without the need for an external fluorinating agent because the trifluoromethyl group acted as a built-in fluorine source. Solid-state and solution thermolysis of Rb2Mg2(tfa)6(tfaH)2·3H2O provided access to the hexagonal and cubic polymorphs of the fluoroperovskite RbMgF3, respectively. Findings reported in this article highlight that bimetallic trifluoroacetates offer unique features from the standpoint of both crystal lattice topology and reactivity.
Creator
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<strong>Szlag, Regina G.</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=a6f6b983eb02f40fe8e9784a71115fd267d30ff3d5997288d688b4c247e99d4e992cc6c5f422970aefe50e0211ce803a6f4322d3eda65e95887a20dd9a4e39fd&formato=pdf&convocatoria=21" target="_self"><strong>Suescun, Leopoldo</strong></a>
<strong>Dhanapala, B. Dulani</strong>
<strong>Rabuffetti, Federico A.</strong>
Source
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Inorganic Chemistry v. 58, 2019. -- p. 3041-3049
Publisher
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American Chemical Society
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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Artículo
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DOI: 10.1021/acs.inorgchem.8b02988
Cristales Hibridos Bimetalicos
Metales
Rubidio
-
https://riquim.fq.edu.uy/files/original/1fbac941e79368d9efea80a26ea8ba6f.pdf
b38df4c81bbb03b4d2d6943a3752edf7
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
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Title
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<strong>Computational Evidence Suggests That 1-Chloroethanol May Be an Intermediate in the Thermal Decomposition of 2-Chloroethanol into Acetaldehyde and HCl</strong>
Subject
The topic of the resource
TERMODINAMICA
ACETALDEHIDO
CLOROETANOL
COMPUTACION-TEORIA
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
The dehalogenation of 2-chloroethanol (2ClEtOH) in the gas phase with and without the participation of catalytic water molecules has been investigated using methods rooted into the density functional theory. The well-known HCl elimination leading to vinyl alcohol (VA) was compared to the alternative elimination route toward oxirane and shown to be kinetically and thermodynamically more favorable. However, the isomerization of VA to acetaldehyde in the gas phase, in the absence of water, was shown to be kinetically and thermodynamically less favorable than the recombination of VA and HCl to form the isomeric 1-chloroethanol (1ClEtOH) species. At the ωB97X-D/cc-pVTZ level of calculation, this species is more stable than 2ClEtOH by about 6 kcal mol–1 at 298 K, and the reaction barrier for VA to 1ClEtOH is 23 kcal mol–1 versus 55 kcal mol–1 for the direct transformation of VA to acetaldehyde. In a successive step, 1ClEtOH can decompose directly to acetaldehyde and HCl with a lower barrier (29 kcal mol–1) than that of VA to the same products (55 kcal mol–1). The calculations were repeated using a single ancillary water molecule (W) in the complexes 2ClEtOH_W and 1ClEtOH_W. The latter adduct is now more stable than 2ClEtOH_W by about 8 kcal mol–1 at 298 K, implying that the water molecule increased the already higher stability of 1ClEtOH in the gas phase. However, this catalytic water molecule lowers dramatically the barrier for the interconversion of VA to acetaldehyde (from 55 to 7 kcal mol–1). This barrier is now smaller than the one for the conversion to 1ClEtOH (which also decreases, but not so much, from 23 to 13 kcal mol–1). Thus, it is concluded that while 1ClEtOH may be a plausible intermediate in the gas phase dehalogenation of 2ClEtOH, it is unlikely that it plays a major role in water complexes (or, by inference, aqueous solution). It is also shown that neither in the gas phase nor in the cluster with one water molecule, the oxirane path is more favorable than the VA alcohol path. Additionally, a direct conversion of 2ClEtOH to 1ClEtOH through a transition state which resembles a VA molecule in a complex with a chlorine atom and a hydrogen atom on both sides of this planar species was found. This reaction path has also lower activation energy than the conversion to oxirane but not as low as the conversion to VA.
Creator
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<strong>Salta, Zoi</strong>
<strong>Kosmas, Agnie Mylona</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjO5a_q6r_mAhX1IbkGHWsNAxYQFjAAegQIBBAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Da7868d1a46654e7a04ba7167141502086fa0cfad8b13463f75d90af715685994bc8f3eafaad6f6d2f6647277c9782143df93695c8a7d8e14295323ca2e2847d3%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw3DgPJlf--GOsjsu4KZ-hpA" target="_self"><strong>Ventura, Oscar N.</strong></a>
<strong>Barone, Vicenzo</strong>
Source
A related resource from which the described resource is derived
Journal of Physical Chemistry A v. 123, no. 10, 2019. -- p. 1983-1998
Publisher
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American Chemical Society
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI: 10.1021/acs.jpca.8b11966
Acetaldehido
Cloroetanol
Computacion-Teoria
Termodinámica
-
https://riquim.fq.edu.uy/files/original/3b6604882d7fab2504cc686237279b2a.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
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Title
A name given to the resource
<strong>How do consumers perceive reformulated foods after the implementation of nutritional warnings? : Case study with frankfurters in Chile</strong>
Subject
The topic of the resource
ALIMENTOS
NUTRICION
CHILE
ETIQUETADO NUTRICIONAL
INFORMACION NUTRICIONAL
ADVERTENCIAS NUTRICIONALES
FRANKFURTERS
BIBLIOGRAFIA NACIONAL QUIMICA 6530 |a 2019
2019
Abstract
A summary of the resource.
Nutritional warnings have emerged as a promising front-of-package nutrition labelling scheme to discourage consumption of products with high content of nutrients associated with non-communicable diseases. One of the objectives of this policy is to encourage the food industry to reformulate their products. However, information about consumers’ perception of reformulated products in the context of the implementation of this policy is still limited. The aim of this study was to assess the relative influence of different types of reformulation on consumers’ perceived healthfulness and purchase intention, using frankfurters as case study. A conjoint analysis was implemented considering a fractional factorial design involving 5 2-level variables: brand type (artisanal/industrial), sodium reduction (with/without), saturated fat reduction (with/without), fibre claim (with/without) and cholesterol claim (with/without). An online survey with 494 consumers was implemented one year after the implementation of nutritional warnings in Chile. Participants were randomly divided into two groups, one of which evaluated purchase intention (n = 249) and the other evaluated perceived healthfulness (n = 245). Data were analysed using analysis of variance and cluster analysis. Results showed that reformulated products without nutritional warnings for sodium and saturated fat were perceived as more healthful and had higher purchase intention scores than then regular counterparts. On the contrary, nutrient claims did not have a relevant effect on consumers’ perception. Heterogeneity in consumers’ reaction to the reformulated products was found and was mainly related to consumption frequency of the product category. Results provide insights for policy makers and food companies in countries considering the implementation of nutritional warnings.
Creator
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<strong>Schnettler, Berta</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiUu6uN17_mAhWcEbkGHZWqAO8QFjAAegQIBBAE&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3De41ee09b825f22635cb8a1e9b42b334d75d1c2be0ccaad4f086d148a0ebac442b4a82cfb05ef977a8fe31965e28ee4bb8889f1ccb549f56f20a9403e2c02a0cf%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw2b6EcmcyrtNMCI5VJlC4Az" target="_self"><strong>Ares, Gastón.</strong></a>
<strong>Sepúlveda, Néstor</strong>
<strong>Bravo, Silvana</strong>
<strong>Villalobos, Blanca</strong>
<strong>Hueche, Clementina</strong>
<strong>Adasme-Berríos, Cristian</strong>
Source
A related resource from which the described resource is derived
Food Quality and Preference v. 74, 2019. -- p. 179-188
Publisher
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Elsevier
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI:10.1016/j.foodqual.2019.01.021
Advertencias Nutricionales
Alimentos
Chile
Etiquetado nutricional
Frankfurters
Información nutricional
Nuntricion
-
https://riquim.fq.edu.uy/files/original/3637eae57be485e50afe708f02aa949c.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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Title
A name given to the resource
<strong>Are consumers willing to pay more for reformulated processed meat products in the context of the implementation of nutritional warnings : Case study with frankfurters in Chile</strong>
Subject
The topic of the resource
ALIMENTOS
ALIMENTOS FUNCIONALES
CARNES
ADVERTENCIAS NUTRICIONALES
REDUCCION DE SODIO
REDUCCION DE GRASA
ETIQUETADO NUTRICIONAL
BIBLIOGRAFIA NACIONAL QUIIMICA
2019
Abstract
A summary of the resource.
The aim of the present work was to assess consumers' willingness to pay for reformulated frankfurters in the context of the implementation of nutritional warnings. Images of frankfurter packages were designed using a fractional factorial design with 5 2-level variables: brand type, sodium reduction, saturated fat reduction, fibre claim and cholesterol claim. An online study with 548 consumers was implemented with Chilean participants, who were asked to indicate how much they would be willing to pay for each of the packages. Data were analysed using analysis of variance and hierarchical cluster analysis. Willingness to pay was significantly affected by brand type and sodium and fat reduction, whereas fibre and cholesterol claim did not have a significant effect. These results suggest that in the context of the implementation of nutritional warnings reformulation of processed meat products should focus on the reduction of key nutrients, although consumers may not be willing to pay a higher price for reformulated products.
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<strong>Schnettler, Berta</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiUu6uN17_mAhWcEbkGHZWqAO8QFjAAegQIBBAE&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3De41ee09b825f22635cb8a1e9b42b334d75d1c2be0ccaad4f086d148a0ebac442b4a82cfb05ef977a8fe31965e28ee4bb8889f1ccb549f56f20a9403e2c02a0cf%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw2b6EcmcyrtNMCI5VJlC4Az" target="_self"><strong>Ares, Gastón.</strong></a>
<strong>Sepúlveda, Nestór</strong>
<strong>Bravo, Silvana</strong>
<strong>Villalobos, Blanca</strong>
<strong>Hueche, Clementina</strong>
<strong>Lobos, Germán</strong>
Source
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Meat Science v. 152, 2019. -- p. 104-108
Publisher
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Elsevier
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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Artículo
Advertencias Nutricionales
Alimentos
Alimentos funcionales
Carnes
Etiquetado nutricional
Reduccion de Grasa
Reduccion de Sodio
-
https://riquim.fq.edu.uy/files/original/916a233c6b40ae2f942b80d23b9bde2b.pdf
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
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PDF
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Title
A name given to the resource
<strong>Production of D-tagatose and D-fructose from whey by co-immobilized enzymatic system</strong>
Subject
The topic of the resource
ENZIMAS
SUERO
FRUCTUOSA
INMOVILIZACION DE ENZIMAS
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
β-Galactosidase from Bacillus circulans, l-arabinose (d-galactose) isomerase from Enterococcus faecium and d-xylose (d-glucose) isomerase from Streptomyces rubiginosus, immobilized individually and co-immobilized onto Eupergit C and Eupergit C 250 L, were used batchwise in mono- and multi-bioreactor systems for lactolysis/isomerization processes in Mozzarella cheese whey. The degrees of lactolysis achieved with the multienzymatic systems were significantly higher than those obtained by using mono-enzymatic processes with immobilized β-galactosidase. This effect was observed when at least one of the isomerases was present in the reactor, suggesting a reduction in product inhibition of lactolysis as a result of decrease in d-galactose and/or d-glucose levels during reaction. Temperature was the main factor that affected d-tagatose/d-galactose and d-fructose/d-glucose ratios. Degree of lactolysis achieved at 50 °C was between 88% and 100%. Mono-reactor processes with co-immobilized stabilized tri-enzymatic systems exhibited the best performances regarding conversion degrees (producing complete lactolysis, 45% d-tagatose and 39% d-fructose against 93% lactolysis, 40% d-tagatose and 29% d-fructose for mono-reactor processes with individually immobilized enzymes). Stabilized co-immobilized enzymes were able to improve further to 53% the yield in d-fructose when demineralized Mozzarella cheese whey was employed as substrate. The productivities were moderate, ranging 9.5–10 g/Lh in terms of d-tagatose. Stabilized derivatives could be reused for at least 12 cycles in batch bio-reactors.
Creator
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<strong>Torres, Pedro</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjMpqqk17_mAhURA9QKHdpCDWoQFjAAegQIAhAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Dbdd067f4b1b8fa059782e3e95521aaa16343c974cf882a9fb942c2f9a70e3e2d28d24a267afde55919add09cb3bff5a88dda976b68929de358c4acefe988f545%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw3lmlSV2CODwKIRjXTVF_3B" target="_self"><strong>Batista Viera, Francisco.</strong></a>
Source
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Molecular Catalysis v. 463, 2019. -- p. 99-109
Publisher
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Elsevier
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI: 10.1016/j.mcat.2018.11.017
Enzimas
Fructuosa
Inmovilizacion de enzimas
Suero
-
https://riquim.fq.edu.uy/files/original/aaf485341c25250e073d6a0af71f4387.pdf
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
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Title
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<strong>Sensory product characterisations based on check-all-that-apply questions : Further insights on how the static (CATA) and dynamic (TCATA) approaches perform</strong>
Subject
The topic of the resource
COMPORTAMIENTO DEL CONSUMIDOR
EVALUACION SENSORIAL
CATA
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Check-all-that-apply (CATA) questions have become one of the most popular methods for sensory characterisation with consumers. Temporal CATA (TCATA) is an extension of the former that takes into account the dynamic nature of sensory perception. The aim of the present work was to expand the methodological comparison of CATA and TCATA questions, considering the characterisation of solid products that undergo substantial oral processing when consumed. Five studies involving a total of 731 consumers were conducted with different product categories: dried apricots, peas, cheese, bread and milk chocolate. A between-subjects experimental design was used to compare the static and dynamic versions of CATA questions. For comparison purposes, TCATA data were analysed as CATA by collapsing the data into four fixed time intervals (quarters). The four quarters of TCATA were compared to results from CATA considering the frequency of use of the terms, sample discrimination, and product configurations. The temporal aspect of TCATA did not largely modify the average citation proportion of terms or the maximum citation proportion for individual terms. Significant differences among samples were established for most of the terms in both CATA and TCATA evaluations, albeit some subtle differences between the two methods were found. These differences were dependent on the product category and the specific sensory characteristics that were relevant for describing the focal samples. The largest differences were found for Study 5 (milk chocolate), for which TCATA identified a few additional insights on the evolution of similarities and differences among samples. However, in most cases general findings were virtually identical for both methodological approaches. In light of these results, the extra effort of using a dynamic sensory characterisation method compared to a static one, may, in many instances, not be warranted.
Creator
An entity primarily responsible for making the resource
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=e13bee77c03cddbef59b397e314055a6622de73c70417f3162757bfad754bfa8ad01125204736ed535ca050230cfa514a6e43d3d2464b7fea2cb77f4995d0c4b&formato=pdf&convocatoria=21" target="_self"><strong>Vidal, Leticia.</strong></a>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=7dd276e2441870ffa17f20a0b26e1c6d1f5d2bf6d0e6bdc40832dca4787f1ea7e26c717086e07a5df1b47e258b828694cf34bd7bd13348216c403d4897e7969e&formato=pdf&convocatoria=21" target="_self"><strong>Antúnez, Lucía.</strong></a>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiUu6uN17_mAhWcEbkGHZWqAO8QFjAAegQIBBAE&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3De41ee09b825f22635cb8a1e9b42b334d75d1c2be0ccaad4f086d148a0ebac442b4a82cfb05ef977a8fe31965e28ee4bb8889f1ccb549f56f20a9403e2c02a0cf%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw2b6EcmcyrtNMCI5VJlC4Az" target="_self"><strong>Ares, Gastón.</strong></a>
<strong>Cuffia, Facundo</strong>
<strong>Lee, Pui- Yee</strong>
<strong>Le Blond, Marie</strong>
<strong>Jaeger, Sara R</strong>
Source
A related resource from which the described resource is derived
Food Research International v. 125, 2019. -- 11 p.--e108510
Publisher
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Elsevier
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI: 10.1016/j.foodres.2019.108510
CATA
Comportamiento del consumidor
Evaluación sensorial
-
https://riquim.fq.edu.uy/files/original/a4b8122b0dc57e415d2a775319740dd4.pdf
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Response of Diaphorina citri (Hemiptera: Liviidae) to volatiles characteristic of preferred citrus hosts</strong>
Subject
The topic of the resource
CITRUS
PLAGAS
DIAPHORINA CITRI
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
The Asian citrus psyllid, Diaphorina citri, is currently the most important pest of citrus worldwide because it vectors ‘Candidatus Liberibacter’ spp., the etiological agents of lethal Huanglongbing (HLB). Reduction of D. citri populations is a key component of HLB management. Identifying potential D. citri attractants, such as volatiles, could be useful for behavioral management of this insect. This could, for instance, enhance catches of adults on monitoring traps. The overall aim of this study was to investigate the response of D. citri to volatiles characteristic of preferred citrus hosts. An ancillary objective was to formulate a synthetic blend of volatiles based on preferred host odors that could enhance monitoring traps. Volatile collections of two preferred citrus species, Duncan grapefruit (Citrus paradise) and sweet orange (Citrus sinensis), were performed in aeration chambers and analyzed by gas chromatography-mass spectrometry. Based on the grapefruit volatile profile, a synthetic blend consisting in d-limonene (0.62 mg), methyl N-methylanthranilate (0.19 mg), β-ocimene (0.11 mg), β-elemene (0.02 mg), and β-caryophyllene (0.02 mg) was prepared in 9.9 mL of dichloromethane and evaluated for attractiveness, as well as the individual compounds, and compared with a positive control of natural volatiles collected from Citrus sinensis. Behavior of D. citri adults was evaluated in two-choice behavioral assays comparing response to lures with different combinations and dosages of the volatiles deployed on yellow sticky traps. Individually, neither d-limonene nor methyl N-methylanthranilate affected behavior of D. citri. However, these volatiles increased catches of D. citri, as compared with solvent control, when presented as components of the synthetic grapefruit blend, as did the natural citrus odor positive control. Importantly, catch of D. citri appeared to vary with the release rate of the identified grapefruit volatile blend, which was attractive at a 0.1 mg loading dosage, but repellent at a dosage only 1 log step higher.
Creator
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<strong>Amorós, María Eugenia</strong>
<strong>Pereira das Neves, Virginia.</strong>
<strong>Rivas, Fernando.</strong>
<strong>Buenahora Acosta, José Hermes.</strong>
<strong>Martini, Xavier</strong>
<strong>Stelinski, Lukasz L</strong>.
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwj1sfiR6L_mAhX2HbkGHfoOB6IQFjAAegQIAxAE&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D0ac67fcafcb05bf82a3b4f786e94421e55e9c32193a59fde55335950e4436b28365608365e898c13ec1423a96e4446d3e85ca026c37efbe62a5d1cfad62cc2ea%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw01x06vB1PdGM_4930ySy_t" target="_self"><strong>Rossini, Carmen</strong></a>
Source
A related resource from which the described resource is derived
Arthropod-Plant Interactions v. 13, no. 3, 2019. -- p. 367-374
Publisher
An entity responsible for making the resource available
Springer
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
Information about rights held in and over the resource
<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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Inglés
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Artículo
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DOI:10.1007/s11829-018-9651-8
Citrus
Diaphorina Citri
Plagas
-
https://riquim.fq.edu.uy/files/original/41552ec4d9850399574df6ced24b5dc1.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bioprospecting of whole-cell biocatalysts for cholesterol biotransformation
Subject
The topic of the resource
BIOCATALISIS
COLESTEROL
BIOTRANSFORMACION
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Microorganisms were isolated from industrial wool scouring effluents and from the soil adjacent to the wastewater treatment lagoon, both sterols-rich environments, in order to search for novel biocatalysts able to transform cholesterol. The isolates were identified on the basis of morphological and biochemical characteristics and phylogenetic analysis. Furthermore, a rapid and accurate bacteria identification by matrix assisted laser desorption/ionization-time-of-flight mass spectrometry was carried out. Bacteria and fungi including representatives of the genera Fusarium, Talaromyces, Trichoderma, Mucor, Aspergillus, Citrobacter, Proteus, Klebsiella, Exiguobacterium, Acinetobacter, Tsukamurella, Bacillus, and Streptomyces were found and evaluated for their ability to biotransform cholesterol by whole-cell treatment system. The results show that a Trichoderma koningiopsis strain, as well as two strains of Mucor circinelloides were able to transform cholesterol into value-added products. The major products were characterized as 7β-hydroxycholesterol, 4-cholesten-3-one, 5α,6α-epoxycholestan-3β-ol and 5β,6β-epoxycholestan-3β-ol. To the best of our knowledge, the present study is the first report of cholesterol biotransformation by representatives of Trichoderma and Mucor genera
Creator
An entity primarily responsible for making the resource
<strong>Giorgi, Victoria</strong>
<strong>Chaves, Michel</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwj84JKa47_mAhWJF7kGHWAXC_0QFjAAegQIBRAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D3bf53ffc4c851c7713429760a5fa92a15f292ed8927bdbcbf432dd677082886344f47f5310b02eb7c7207dc9c05bad1fff266332eed11ed4a3fc83cec9dcc16f%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw0028kswK6rjzk1naOD_GWh" target="_self"><strong>Menéndez, Pilar</strong></a>
<strong>García Carnelli, Carlo</strong>
Source
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World Journal of Microbiology and Biotechnology v. 35, 2019. -- 12p.--e12
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Springer
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI: 10.1007/s11274-018-2586-5
Biocatálisis
Biotransformación
Colesterol
-
https://riquim.fq.edu.uy/files/original/36c66816618a7629619ade35db4a57d1.pdf
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Title
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Tesis de doctorado, maestría, trabajos de diploma y monografías técnicas
Description
An account of the resource
Versiones electrónicas de las tesis de doctorado, maestría y trabajos de diploma de la Facultad de Química, Universidad de la República (UdelaR).
Incluye únicamente trabajos hasta el año 2023. Los trabajos posteriores se encuentran disponibles en el Repositorio Colibrí.
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Departamento de Documentación y Biblioteca
RIQUIM
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Title
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<strong>Celulasas sicrófilas, una innovación en la industria del bioetanol</strong>
Subject
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BIOQUÍMICA
BIOTECNOLOGIA
CELULASA
ENZIMAS
BIOETANOL
SICIÓFILOS
Abstract
A summary of the resource.
En este trabajo de tesis se han explorado dos metodologías en la búsqueda de la obtención de nanopartículas de boratos de zinc. Estas metodologías fueron planteadas para lograr sintetizar fases de boratos de zinc en distintos rangos de temperaturas, lo que brinda grandes posibilidades en el desarrollo de aplicaciones tecnológicas. Empleando la síntesis por combustión de gel asistida se pretendió sintetizar boratos de zinc a temperatura mayores a 250 °C, para los cuales se esperaba obtener nanopartículas que fueran importantes en el desarrollo de nuevos aditivos de materiales que se preparan a altas temperaturas, por ejemplo, plásticos. A partir de las síntesis asistidas por micelas reversas, se pretendió obtener boratos de zinc a baja temperatura, por ejemplo, los aminoboratos de zinc [Zn(NH3)3B4O5(OH)4]·H2O (ZB1) y Zn3(H2B3O7)2·2NH3·4H2O (ZB2), reportados previamente durante mi trabajo de Licenciatura en Química. Mediante la metodología de combustión de gel asistida se logró sintetizar la fase ZnB4O7. Los resultados presentados para estas síntesis son contundentes respecto a los procesos químicos que tienen lugar en el sistema estudiado. El medio reductor ofrecido por la alta concentración de amonio da lugar a la formación de carbono amorfo que permanece como principal impureza en las muestras obtenidas, no siendo posible la obtención de nanopartículas de boratos de zinc. La obtención de ZB2 por métodos de baja temperatura fue posible a partir de un sistema coloidal mantenido por agitación formado por agua, CTAB, hexano y diferentes alcoholes como cosurfactantes. Para estos sistemas se obtuvo la fase cristalina ZB2 con tamaños entre 100 y 1000 nm, reportándose tamaños menores a 150 nm cuando se empleó isopropanol como cosurfactante. También se sintetizó la fase ZB2 en un medio de micelas reversas. Este último es uno de los logros más importantes de este trabajo, ya que se consiguió estabilizar un sistema de micelas reversas y obtener un producto con un tamaño de partícula menor a 150 nm. Este trabajo es un aporte importante en la química básica de estos sistemas, abriendo puertas a futuros estudios de síntesis en sistemas de micelas reversas. La metodología utilizada para determinar las condiciones de formación de micelas reversas es extrapolable a cualquier sistema de obtención de compuestos químicos a partir de una solución acuosa con parámetros de concentración y fuera iónica adecuados. Los estudios microbiológicos realizados sobre la fase ZB2 permitieron confirmar la actividad antifúngica y antibacteriana presentada por este compuesto y su dependencia con el tamaño de partícula
Creator
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<strong>Herrera, Lorena.</strong>
Publisher
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Montevideo: Udelar-Facultad de Química
Date
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2019
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<strong><a title="Curriculum Vitae" href="http://buscadores.anii.org.uy/buscador_sni/exportador/ExportarPdf?hash=729d3d9bb07d7be0ba5e4dc762c01e29" target="_self">Franco Fraguas, Laura</a></strong>
<strong>Castro, Susana</strong>
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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Papel
Language
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Inglés
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Tesis
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577.1 HER
Bioetanol
Bioquímica
Biotecnología
Celulasa
Enzimas
Siciófilos
-
https://riquim.fq.edu.uy/files/original/d5654794b08a398b9052abfeaa046953.pdf
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Title
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Tesis de doctorado, maestría, trabajos de diploma y monografías técnicas
Description
An account of the resource
Versiones electrónicas de las tesis de doctorado, maestría y trabajos de diploma de la Facultad de Química, Universidad de la República (UdelaR).
Incluye únicamente trabajos hasta el año 2023. Los trabajos posteriores se encuentran disponibles en el Repositorio Colibrí.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
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Title
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<strong>Desarrollo de metodologías analiticas para la determinación de contaminantes traza orgánicos e inorgánicos en miel</strong>
Subject
The topic of the resource
QUÍMICA ANALÍTICA
CC-MS/-MS
METALES
ESPECTROMETRIA ATOMICA
Abstract
A summary of the resource.
Palabras clave: miel, determinación de metales, determinación de alcaloides pirrolizidínicos, análisis en flujo, GC-MS, LC-MS/MS. El objetivo de esta tesis fue desarrollar metodologías simples, rápidas, confiables y validadas que permitan la determinación en miel de dos grupos de analitos de interés por su toxicidad, alcaloides pirrolizidínicos y metales. Con este propósito, se buscó simplificar la etapa de preparación de muestra y emplear técnicas analíticas simples, de bajo costo y fácilmente disponibles. Se exploraron entonces, diversas técnicas tanto para la preparación de muestra como para la determinación. Para la preparación de muestra se emplearon técnicas como la extracción de punto nube, extracción en fase sólida, microextracción líquido-líquido dispersiva, extracción del tipo QuEChERs y QuPPe. Las técnicas empleadas para la determinación de los analitos de interés fueron también diversas dentro de la espectrometría atómica y la cromatografía. Se aplicó espectrometría de absorción atómica de llama, espectrometría de emisión atómica de plasma de acoplamiento inductivo, cromatografía de líquidos acoplada a detector de arreglo de diodos, de fluorescencia y a espectrometría de masas y la cromatografía gaseosa acoplada a espectrometría de masas. Se aplicaron técnicas de análisis en flujo como el análisis por inyección secuencial, el análisis en flujo multiconmutado y plataformas mesofluídicas como LOV. Se desarrolló un método automatizado para la determinación de cadmio y plomo empleando LOV y como método de preparación de muestra extracción en fase sólida empleando una resina de modo mixto, fase reversa e intercambio de cationes. 16 Desarrollo de metodologías analíticas para la determinación de contaminantes traza orgánicos e inorgánicos en miel Desarrollo de metodologías analíticas para la determinación de contaminantes traza orgánicos e inorgánicos en miel Se desarrolló un método mecanizado para la determinación de cadmio empleando microextracción líquido-líquido dispersiva cuyos parámetros de desempeño son adecuados al uso y en comparación con otros métodos reportados de similares características, tiene un mejor desempeño analítico y mayor rapidez. Ambos métodos cumplen con la característica de simplicidad en la preparación de muestra buscada y pueden ser empleados para evaluar la inocuidad de la miel desde el punto de vista de la contaminación por metales. Además, el método desarrollado a partir de la microextracción líquido-líquido dispersiva por su rapidez, puede ser usado para evaluar episodios de contaminación donde las abejas actúen como biomonitor a través de su producto la miel, y un número muy alto de muestras necesita ser procesado. Con respecto a los alcaloides pirrolizidínicos, se obtuvo como resultado de esta tesis un método para su determinación en miel empleando una variante de QuPPe (Quick Polar Pesticides Method) y cromatografía de líquidos acoplada a espectrometría de masas. La preparación de muestra consistió en la simple extracción de los compuestos en acetonitrilo acidificado. Los métodos fueron optimizados aplicando diseño de experimentos como diseño factorial, completo o central compuesto, o de forma univariante. Una vez optimizados los métodos se validaron y aplicaron al análisis de muestras del mercado. El desarrollo de esta tesis permitió entonces generar distintas metodologías que pueden contribuir a garantizar la inocuidad de la miel tanto para su consumo como su comercio.
Creator
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<strong>Sixto Anidos, Alexandra María</strong>
Publisher
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Montevideo: UdelaR-Facultad de Química
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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Papel
Language
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Inglés
Type
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Tesis
Identifier
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545.2 SIX
Espectrometría atómica
Metales
Química analítica
-
https://riquim.fq.edu.uy/files/original/e545aeeedc53c2339e927965cc38596e.pdf
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Title
A name given to the resource
Tesis de doctorado, maestría, trabajos de diploma y monografías técnicas
Description
An account of the resource
Versiones electrónicas de las tesis de doctorado, maestría y trabajos de diploma de la Facultad de Química, Universidad de la República (UdelaR).
Incluye únicamente trabajos hasta el año 2023. Los trabajos posteriores se encuentran disponibles en el Repositorio Colibrí.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
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Dublin Core
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Title
A name given to the resource
<strong>Síntesis y caracterización de boratos de zinc con aplicación en ciencia de materiales</strong>
Subject
The topic of the resource
QUÍMICA ANALÍTICA
BORATOS DE ZINC
NANOQUÍMICA
SINTESIS DE COMPUESTOS INORGÁNICOS
APLICACIÓN EN MICROBIOLOGÍA
ZINC
Abstract
A summary of the resource.
En este trabajo de tesis se han explorado dos metodologías en la búsqueda de la obtención de nanopartículas de boratos de zinc. Estas metodologías fueron planteadas para lograr sintetizar fases de boratos de zinc en distintos rangos de temperaturas, lo que brinda grandes posibilidades en el desarrollo de aplicaciones tecnológicas. Empleando la síntesis por combustión de gel asistida se pretendió sintetizar boratos de zinc a temperatura mayores a 250 °C, para los cuales se esperaba obtener nanopartículas que fueran importantes en el desarrollo de nuevos aditivos de materiales que se preparan a altas temperaturas, por ejemplo, plásticos. A partir de las síntesis asistidas por micelas reversas, se pretendió obtener boratos de zinc a baja temperatura, por ejemplo, los aminoboratos de zinc [Zn(NH3)3B4O5(OH)4]·H2O (ZB1) y Zn3(H2B3O7)2·2NH3·4H2O (ZB2), reportados previamente durante mi trabajo de Licenciatura en Química. Mediante la metodología de combustión de gel asistida se logró sintetizar la fase ZnB4O7. Los resultados presentados para estas síntesis son contundentes respecto a los procesos químicos que tienen lugar en el sistema estudiado. El medio reductor ofrecido por la alta concentración de amonio da lugar a la formación de carbono amorfo que permanece como principal impureza en las muestras obtenidas, no siendo posible la obtención de nanopartículas de boratos de zinc. La obtención de ZB2 por métodos de baja temperatura fue posible a partir de un sistema coloidal mantenido por agitación formado por agua, CTAB, hexano y diferentes alcoholes como cosurfactantes. Para estos sistemas se obtuvo la fase cristalina ZB2 con tamaños entre 100 y 1000 nm, reportándose tamaños menores a 150 nm cuando se empleó isopropanol como cosurfactante. También se sintetizó la fase ZB2 en un medio de micelas reversas. Este último es uno de los logros más importantes de este trabajo, ya que se consiguió estabilizar un sistema de micelas reversas y obtener un producto con un tamaño de partícula menor a 150 nm. Este trabajo es un aporte importante en la química básica de estos sistemas, abriendo puertas a futuros estudios de síntesis en sistemas de micelas reversas. La metodología utilizada para determinar las condiciones de formación de micelas reversas es extrapolable a cualquier sistema de obtención de compuestos químicos a partir de una solución acuosa con parámetros de concentración y fuera iónica adecuados. Los estudios microbiológicos realizados sobre la fase ZB2 permitieron confirmar la actividad antifúngica y antibacteriana presentada por este compuesto y su dependencia con el tamaño de partícula.
Creator
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<strong>Imer, Marcos</strong>
Publisher
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Montevideo: UdelaR-Facultad de Química
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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Papel
Language
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Español
Type
The nature or genre of the resource
Artículo
Identifier
An unambiguous reference to the resource within a given context
545.2 IME
Aplicación en Microbiologia
Boratos de Zinc
Nanoquímica
Química analítica
Sintesis de Compuestos Inorgánicoss
-
https://riquim.fq.edu.uy/files/original/37b6e1fcc1d61ae6d9bfcfc51e030aff.pdf
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Dublin Core
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>An In Silico Study of the Citrus Dioxygenases CCD4 family Substrates</strong>
Subject
The topic of the resource
CITRUS
CAROTENOIDES
DIOXIGENASAS
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
The coloration of Citrus fruits is related with the concentration of carotenoids, isoprenoid pigments of 40 carbon atoms (C40). Rodrigo et al. and Ma et al. reported a CCD4-type citrus dioxygenase responsible for the generation of C30 apocarotenoids providing a reddish-orange pigmentation to the peel of many mandarins and oranges. Among them, CCD4b was the first case described of a dioxygenase that cleaves carotenoids C40 in the double bond 7', 8' or 7, 8, generating β-citraurin or 8-β-apocarotenal. Here we report the three-dimensional structures of CCD4a and CCD4b, modeled by sequence homology (2BIW) and validated by molecular dynamics (MD). Docking calculations were performed in CCD4a and CCD4b structures with thousands of rotated initial carotenoid conformations and all the possible poses in the active site were found. The interaction energy was measured by means of ASE scoring, Amber99 refinement and London ΔG rescoring. For the case of CCD4a model, the results showed London ΔG score of -19, -17 and -15 kcal/mol for zeaxanthin, β-cryptoxanthin and β-carotene, respectively. The same sequence in the estimated interaction strength for the three ligands was obtained using MD. The interaction energy of CCD4b indicated that, in agreement with experimental data, zeaxanthin and β-cryptoxanthin could be cleaved by the enzyme, β- and α-carotene have chances to be oxidized and lycopene has not good interaction energy to be predicted as substrate. These findings will be discussed considering the potential in vivo substrates and products, and the physiological role in Citrus fruits. Communicated by Ramaswamy H. Sarma.
Creator
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<strong>Vega Teijido, Mauricio</strong>
<strong>Cantero, Jorge</strong>
<strong>Rodrigo, María J</strong>
<strong>López, Carolina</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=8e4377ca77382678fd5af0d455590aa18a44e65bac89340cfafbbd41152343acd96dc3153f75f2fdf08a92578f213300543d33a6754527876021976e495c507b&formato=pdf&convocatoria=21" target="_self"><strong>Paulino, Margot.</strong></a>
Source
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Journal of Biomolecular Structure & Dynamics v. 37, no, 8, 2019. -- p. 2086-2097
Publisher
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Taylor and Francis
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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Artículo
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DOI: 10.1080/07391102.2018.1477619
Carotenoides
Citrus
Dioxigenasas
-
https://riquim.fq.edu.uy/files/original/77eda492f0647d60162da7dcea528be6.png
e2e59f1a5d405d28e61d33aac6209025
Omeka Image File
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8
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96
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1100
https://riquim.fq.edu.uy/files/original/47d0eb179205576343f04494742fc72a.pdf
a427e9a81befa2cdffbcf67027a05265
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
Document
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Original Format
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PDF
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Title
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<strong>Characterizing Honeybee Cuticular Hydrocarbons During Foraging</strong>
Subject
The topic of the resource
MIEL
HIDROCARBUROS
QUIMICA CUTICULAR
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Honeybees (Apis mellifera) adjust their time and effort during foraging activity. Their metabolic rates together with body temperature rise while gathering profitable resources. These physiological changes may result in a differential cuticular profile, which in turn may bear communicational value. We evaluated if sucrose concentration of collected food affects the cuticular chemistry of honeybees during foraging. We trained bees to artificial feeders with high (2 M) and low (0.5 M) sucrose concentrations, and captured the active foragers for surface extraction of cuticular compounds. We sampled foragers just after feeding, before taking-off towards the hive, and upon landing at the hive entrance, before entering the hive. Through gas chromatography-mass spectrometry analysis of cuticular extracts, we identified and quantified 48 compounds, including cuticular hydrocarbons (CHCs) and volatiles associated with exocrine glands. We found that higher sucrose concentrations resulted in increased amounts of alkanes and alkenes in the surface extracts of foragers captured at the hive entrance, but not at the feeding site. Our results suggest that the differences that have been reported for CHCs in waggle-dancing honey bees can be already found once they return to the hive from profitable food sources.
Creator
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<strong>Balbuena, M. S.</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwjYmMik37_mAhUjC9QKHUqdBuEQFjAAegQIAxAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Db96d2035c2979522afe1edfabe4e23f11d71ab0af165fa6178de172f7c71618f5f9c2bacb4844ebd474c79a110e3d435875397434692dae9e1cfa7acb9b73d90%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw1E4xubkxta3RBLYMDTOe03" target="_self"><strong>González Ritzel, Andrés.</strong></a>
<strong>Farina, W. M.</strong>
Source
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Sociobiology v. 66,no. 1, 2019.-- p.97-106
Publisher
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UEFS
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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Inglés
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Artículo
Identifier
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DOI: 10.13102/sociobiology.v66i1.2977
Hidrocarburos
Miel
Quimica Cuticular
-
https://riquim.fq.edu.uy/files/original/e85d60d156554577737660a62b1020dc.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Omeka Image File
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8
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3
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150
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113
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
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Original Format
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PDF
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Title
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<strong>Inefficient and abortive classical complement pathway activation by the calcium inositol hexakisphosphate component of the Echinococcus granulosus laminated layer</strong>
Subject
The topic of the resource
ENFERMEDADES PARASITARIAS
ECHINOCOCCUS GRANULOSUS
EQUINOCOSIS QUISTICA
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Persistent extracellular tissue-dwelling pathogens face the challenge of antibody-dependent activation of the classical complement pathway (CCP). A prime example of this situation is the larva of the cestode Echinococcus granulosus sensu lato, causing cystic echinococcosis. This tissue-dwelling, bladder-like larva is bounded by a cellular layer protected by the outermost acellular “laminated layer” (LL), to which host antibodies bind. The LL is made up of a mucin meshwork and interspersed nano-deposits of calcium inositol hexakisphosphate (calcium InsP6). We previously reported that calcium InsP6 bound C1q, apparently initiating CCP activation. The present work dissects CCP activation on the LL. Most of the C1 binding activity in the LL corresponded to calcium InsP6, and this binding was enhanced by partial proteolysis of the mucin meshwork. The remaining C1 binding activity was attributable to host antibodies, which included CCP-activating IgG isotypes. Calcium InsP6 made only a weak contribution to early CCP activation on the LL, suggesting inefficient C1 complex activation as reported for other polyanions. CCP activation on calcium InsP6 gave rise to a dominant population of C3b deposited onto calcium InsP6 itself that appeared to be quickly inactivated. Apparently as a result of inefficient initiation plus C3b inactivation, calcium InsP6 made no net contribution to C5 activation. We propose that the LL protects the underlying parasite cells from CCP activation through the combined effects of inefficient permeation of C1 through the mucins and C1 retention on calcium InsP6. This mechanism does not result in C5 activation, which is known to drive parasite-damaging inflammation.
Creator
An entity primarily responsible for making the resource
<strong>Barrios, Anabella A.</strong>
<strong>Grezzi, Leticia</strong>
<strong>Miles, Sebastián</strong>
<strong>Mariconti, Mara</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=8077d6141c1946a30df792835b6b6ef857fe8ef0419315625ad1c8238bb9aca6cff0e2e3a0117a509b98df7dc5fd1db6728b0697ffb3f71b1ca9ceb5260c5454&formato=pdf&convocatoria=21" target="_self"><strong>Mourglia Ettlin, Gustavo Daniel.</strong></a>
<strong>Seoane, Paula I.</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiR-faO27_mAhUAGrkGHbG5AxwQFjAAegQIBBAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2Fpdf%2F%3Fc855a45b7dae1af50c961a96b5eb15c26a7b943e53f84d972caa0f9ce21ec5f03ef21e57ce461b5656b60c7a13dbc71dbc1dad52a109e231d5b638ac5639067d&usg=AOvVaw2-p60bssNmxkcYsJPe3H-P" target="_self"><strong>Alvaro, Díaz</strong></a>
Source
A related resource from which the described resource is derived
Immunobiology v.224, no.5, 2019. -- p. 710-719
Publisher
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Elsevier
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
Language
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Inglés
Type
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Artículo
Identifier
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DOI:10.1016/j.imbio.2019.05.009
Echinococus granulosus
Enfermedades parasitarias
Equinocosis Quistica
-
https://riquim.fq.edu.uy/files/original/fa6b3bb95a2c763b1c81516e1928066b.pdf
0ebebc2e46cd599f97051dd7aefd7031
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8
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3
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150
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113
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
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Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
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Title
A name given to the resource
<strong>Dissipation of selected insecticides and fungicides applied during preharvest on mandarin and orange trees in Uruguay</strong>
Subject
The topic of the resource
FRUTAS
MANDARINAS
NARANJAS
PESTICIDAS
RESIDUOS DE PESTICIDAS
URUGUAY
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
The dissipation of 4 commercial pre-harvest pesticides used in two Citrus species under field conditions is presented. The influence of agroecological region, the Citrus species and weather conditions on abamectin, spinosad, imidacloprid and difenoconazole dissipation rate on fruits were evaluated. A validated ethyl acetate method coupled to liquid chromatography-tandem mass spectrometry allowed the determination of pesticide residues having recoveries of 72–115%, relative standard deviations ≤16% and quantification limits below the international Maximum Residue Levels (MRLs). After 35–40 days from pesticides spraying, all residues were below the international required MRL. For each citrus species, the influence of the agroecological region on the pesticide dissipation was assessed. Film-protected fruits against direct radiation and rain showed higher residue levels of imidacloprid and spinosad than the non-protected ones. Either for orange or mandarin, abamectin residues were detectable only at the first day after application. These findings provide useful information to state safer pre harvest intervals and to ensure food safety and compliance with good agricultural practices.
Creator
An entity primarily responsible for making the resource
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=d9ef591b887f1c3085554d26a1a037ad6bb934a1b02c33961dcaaceb30e7a18e3d9b6058477ab597c12ba561cac0c6b36ca5631b1182e93fc29c55482029565c&formato=pdf&convocatoria=21" target="_self"><strong>Besil, Natalia.</strong></a>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjFsIWj5r_mAhVkIbkGHf6iB7QQFjAAegQIBRAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Dfda2ddd3225e35b6cd0dd11333996b08c4f2ec35ccdbe92a4a51420f1bc7853e8c31c9c047392931df7517b95a6a8bc0513e278125b0cdd382223a0af2e3d381%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw27THRXuO9wnELzxGIHdvMy" target="_self"><strong>Pérez Parada, Andrés</strong></a>
<strong>Bologna, Franco</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=833da37ef6f0f9787a1257ffd7f129a8a148e2bddb9022c6569913519dd3e78a15f65da0b7c2dd8ca9dbdc3632e62d77e350dfccb5cea95fd0fd8a6467c616a2&formato=pdf&convocatoria=21" target="_self"><strong>Cesio, María Verónica.</strong></a>
<strong>Rivas, Fernando.</strong>
<strong><a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=efdc2e4d27c46568e51501a117c8d64c661d28215277fe2b1621ea4a392338f0bd55c3b410eb66c8bd85997e02d92a5828f529ff076bd0478d3b4ffd01ec2037&formato=pdf&convocatoria=21" target="_self">Heinzen, Horacio.</a></strong>
Source
A related resource from which the described resource is derived
Scientia Horticulturae v. 248, 2019. -- p. 34-40
Publisher
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Scientia Horticulturae v. 248, 2019. -- p. 34-40
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
Information about rights held in and over the resource
<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
Language
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Inglés
Type
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Artículo
Identifier
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DOI: 10.1016/j.scienta.2018.12.053
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Uruguay
Frutas
Mandarinas
Naranjas
Pesticidas
Residuos de pesticidas
Uruguay
-
https://riquim.fq.edu.uy/files/original/e4b68ffbb33f5800cf1670c139405a12.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Omeka Image File
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8
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3
Height
150
Width
113
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor</strong>
Subject
The topic of the resource
BIOMASA
PRODUCTOS NATURALES
SACARIFICACION
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Switchgrass (Panicum virgatum) is a perennial grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or food production. In the present study, this biomass was submitted to steam explosion pretreatment in a semi-continuous pre-pilot reactor with the aim of obtaining a pretreated solid with high digestibility for enzymatic hydrolysis. Different conditions of temperature (170–200 °C) and residence time (5–15 min), leading to different severity factors (2.76–4.12) were used for steam explosion pretreatment, which were combined through a 22 central composite design. The results revealed that both variables had great influence in the process, affecting both the biomass structure and the saccharification yield, as a consequence. However, in the range of values evaluated in this study, the effect of the temperature was more prominent than the effect of the residence time. The best saccharification yield (88.3%) was obtained when using the biomass pretreated at 200 °C for 10 min. Similar result was obtained using a commercial cellulose pulp as feedstock for enzymatic hydrolysis, confirming that the best conditions for switchgrass pretreatment in the pre-pilot scale were successfully established.
Creator
An entity primarily responsible for making the resource
<strong>Bonfiglio, Fernando</strong>
<strong>Cagno, Matías</strong>
<strong>Rey, Fabiana</strong>
<strong>Torres, Marina</strong>
<strong>Böthig, Silvia</strong>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwj84JKa47_mAhWJF7kGHWAXC_0QFjAAegQIBRAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D3bf53ffc4c851c7713429760a5fa92a15f292ed8927bdbcbf432dd677082886344f47f5310b02eb7c7207dc9c05bad1fff266332eed11ed4a3fc83cec9dcc16f%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw0028kswK6rjzk1naOD_GWh" target="_self"><strong>Menéndez, María del Pilar</strong></a>
<strong>Mussatto, Solange I.</strong>
Source
A related resource from which the described resource is derived
Biomass and Bioenergy v. 121, 2019. -- p. 41-47
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Elsevier
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong> ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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DOI:10.1016/j.biombioe.2018.12.013
Biomasa
Productos naturales
Sacarificación
-
https://riquim.fq.edu.uy/files/original/c2b26bcb256065a69cd014b4cb869964.pdf
a4d506327cd04294ddf893bcd94dbf75
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168
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
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PDF
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Title
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<strong>Biogenic silver nanoparticles from the fungus Punctularia atropurpurascens for the control of microorganisms</strong>
Subject
The topic of the resource
NANOTECNOLOGIA
ANTIINFECCIOSOS
HONGOS
NANOPARTICULAS
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
In the present study, synthesis, characterization, and the antibacterial activity of silver nanoparticles from native isolate of Corynebacterium glutamicum has been reported. Silver nanoparticles were synthesized by challenging the dried biomass of C. glutamicum with aqueous diamine silver ([Ag (NH3)2]+) containing 1 mM AgNO3. Synthesized silver nanoparticles (AgNPs) were characterized by ultraviolet–visible spectroscopy and energy-dispersive X-ray (EDX) spectroscopy analysis. Morphological study of silver nanoparticles was carried out using transmission electron microscopy (TEM) and scanning electron microscope (SEM). The spherical morphology of silver nanoparticles was confirmed from SEM image. The TEM image showed the average particle size of silver nanoparticles was about 15 nm. Silver nanoparticles synthesized from C. glutamicum were found to have enhanced antimicrobial activity against selected pathogenic strains. Silver nanoparticles from pure strains of Corynebacterium species was done by many investigators, but as per the present literature, this is the first report on the production of silver nanoparticles using a native strain of Corynebacterium.
Creator
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<strong>Sanguiñedo, Paula</strong>
<strong>Estevez, María Belén</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=2f2e59581473324400ee29ded741b9090cc25a893e73d02669ebfbc674c9e8b9b51bb30e2bca064dc7ebbd5c39aa3c844e86e507301e912aa1b0a5ae17423fa2&formato=pdf&convocatoria=21" target="_self"><strong>Faccio, Ricardo.</strong></a>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwib5Mrj1r_mAhX1HbkGHS-XCj4QFjAAegQIBRAD&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D5b9c9936b20b7b2352e3813baf42a29613b5a147258df4cae843cd087fc76b2042c0e3be63baf8ed05b5d15613f8d17a3bececa370048a98b8d741075138e04f%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw0P7fKmmpMbaEFqmaYjIWg7" target="_self"><strong>Alborés, Silvana</strong></a>
Source
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Mundo Nano v. 12, 2019. -- p. 101-110
Publisher
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UNAM
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
Language
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Español
Type
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Artículo
Identifier
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DOI: 10.22201/ceiich.24485691e.2019.22
Antiinfecciosos
Hongos
Nanopartículas
Nanotecnología
-
https://riquim.fq.edu.uy/files/original/e8e094d0947d037828e0f73bb282e2d8.pdf
480d7473062118272cf91a58dd78fc76
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181
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128
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
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PDF
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Title
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<strong>Use of commercial TiO2 as direct ethanol fuel cell electrocatalyst support</strong>
Subject
The topic of the resource
ETANOL
CATALISIS
ELECTROOXIDACION
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Pd nanoparticles anchored on Nb-doped TiO2 with functionalized carbon support (denoted as Pd/Nb–TiO2–C) is synthesized through a controllable hydrolysis and impregnation method. The as-synthesized catalyst is characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Pd nanoparticles exhibit a uniform distribution with an average particle size of 3 nm. The electrochemical performance is tested by cyclic voltammetry (CV) and chronoamperometry (CA). Compared with Pd supported by functionalized carbon (Pd/C), Pd/Nb–TiO2–C demonstrates 15.7% higher metallic Pd content, 23% higher electrochemical active surface area, 75% higher current density in ethanol electro-oxidation, 5% higher durability, and better tolerance of carbonaceous species. The performance enhancement is attributed to the increased conductivity from Nb-doping and the synergistic effect between Pd and TiO2.
Creator
An entity primarily responsible for making the resource
<strong>Brasil, L. M. M.</strong>
<strong>Malfatti, C. M.</strong>
<strong><a title="Currículum" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwiWu-TG2r_mAhWYCrkGHXyNBxUQFjAAegQIAxAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D0bd4a66b6fa283d5661a41253b4a691c6138af7577dc025375efd0c96561d31c2a41a533a11cc6a6d4bb5712afd3afa8155493572956055ad18ad64539c553aa%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw2gKu7tugRW6qnofn_Nt6Hc" target="_blank">Cuña, Andrés</a><br /></strong>
<strong>Cadorin, M.</strong>
<strong>Ries, L. A. S.</strong>
Source
A related resource from which the described resource is derived
Renewable Energy and Power Quality Journal v. 17, 2019. -- p. 480-482
Publisher
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EA4EPQ
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
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Inglés
Type
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Artículo
Identifier
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DOI: 10.24084/repqj17.349
Catálisis
Electrooxidación
Etanol
-
https://riquim.fq.edu.uy/files/original/f688b0869cac3b45e0a08d8596e34358.pdf
0ebebc2e46cd599f97051dd7aefd7031
https://riquim.fq.edu.uy/files/original/958a06e1db26710141bfa15e75537110.gif
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3
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150
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113
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
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If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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Title
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<strong>Assessing multimetric trophic state variability during an ENSO event in a large estuary (Río de la Plata, South America)</strong>
Subject
The topic of the resource
AGUA
ESTUARIOS
MONITOREO AMBIENTAL
RIO DE LA PLATA
URUGUAY
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
During the “El Niño”- Southern Oscillation (ENSO) event 2009–2010, trophic state uni (TSI’s) and multimetric (TRIX’s) indexes were determined in the north coast of the Río de la Plata (RdlP). The relationships of such indexes with the hydrological, physical and chemical parameters were explored to identify climatic variability or anthropogenic effects on the eutrophication process. Eleven oceanographic sampling campaigns at 25 stations were conducted along the north coast of RdlP from 2009 to 2011. Temperature, salinity and oxygen saturation, water transparency (Secchi depth), chlorophyll (Chl a) content and total nutrient concentrations (total nitrogen and phosphorous) were determined. Trophic indexes (TSI Chl a, TSI TP, TRIX NP-Voll. and TRIX NP-Mvdeo.) were quantified and the RdlP flow was measured. RdlP flow showed significant differences between ENSO phases, with higher values during “El Niño” (EN), negative and significant correlations with salinity, Secchi depth and positive with total nutrients. The trophic status indexes showed spatial and temporal variability and associations with flow, physical and chemical parameters. Trophic state indexes showed spatial and temporal heterogeneity and were strongly associated to environmental conditions (hydrological and seasonal oscillations) during the study period but also to the anthropogenic factors affecting the north coast of RdlP. The system has been classified as mesotrophic to hypertrophic, depending on the selected indicator. According to these results, we suggest the use of a multimetric trophic state indicator, i.e., the TRIX index, as explains better the causes and effects of the eutrophication processes. To implement the TRIX index, (TRIX NP-Mvdeo.) we suggest researchers to consider a large number of local records (Chl a, nutrients, oxygen) at seasonal scales. This index is adapted to the environmental conditions of the study zone and complemented with other community structure indexes, and should be used for eutrophication assessment programs in the north coast of RdlP.
Creator
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<strong>Brugnoli, E.</strong>
<strong>Muniz, P.</strong>
<strong>Venturini, N.</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=76fda5e876d7838a885399f5cef02e0d379f384ffe6daa3cb23af35c02ec6f7f1e120c2bddda0b94b93ca0683d4b038a08132b4d8ad1bbe4dab743b47bb1df5e&formato=pdf&convocatoria=21" target="_self"><strong>Brena, Beatriz M.</strong></a>
<strong>Rodríguez, A.</strong>
<strong>García Rodríguez, F.</strong>
Source
A related resource from which the described resource is derived
Regional Studies in Marine Science v. 28, 2019. -- 10p.--e100565
Publisher
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Elsevier
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
Language
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Inglés
Type
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Artículo
Identifier
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DOI: 10.1016/j.rsma.2019.100565
Agua
Estuario
Monitoreo Ambiental
Río de la Plata
Uruguay
-
https://riquim.fq.edu.uy/files/original/10f0472dc38c04b3a4a8ea59d341bfc4.pdf
0ebebc2e46cd599f97051dd7aefd7031
https://riquim.fq.edu.uy/files/original/64cada8e2c56b19e4f31b14cdc59223f.jpg
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Omeka Image File
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3
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194
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148
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
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Title
A name given to the resource
<strong>Lanthanide complexes with phenanthroline-based ligands: insights into cell death mechanisms obtained by microscopy techniques</strong>
Subject
The topic of the resource
LANTANIDOS
FENANTROLINA
MICROSCOPIA
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
Herein we report the synthesis, characterization, and photophysical and biological evaluation of the complexes Ln(DBM)3(RPhen) (Ln = Sm, R = H; Ln = Sm, Eu, Tb, R = 5-NH2) stabilized by three β-diketonate units (DBM) and a phenanthroline (RPhen) derivative, with the aim of contributing to the development of lanthanide-based compounds with potential application as anticancer agents. The UV-vis spectra of [Sm(DBM)3(Phen)], [Sm(DBM)3(NH2Phen)], [Eu(DBM)3(NH2Phen)] and [Tb(DBM)3(NH2Phen)] measured in DMSO and PBS showed a strong absorption band centered at ca. 350 nm in both solvents. In DMSO, all lanthanide compounds except [Sm(DBM)3(Phen)] show a ligand centered emission band at ca. 520 nm. In PBS only sharp emission peaks are detected. The complexes show similar cytotoxic effects in A2780 ovarian cancer cells, presenting IC50 values at 24 h in the range 16–27 μM. The measurement of the cellular uptake of the complexes in the A2780 cells by inductively coupled plasma mass spectrometry (ICP-MS) revealed preferential accumulation at the membrane and cytoskeleton, with the exception of [Sm(DBM)3(Phen)] that presented higher accumulation in the cytosol than in the cell membranes. All the evaluated lanthanide complexes showed low nuclear uptake, although not negligible. Spectroscopic studies on the interaction of the complexes with calf thymus DNA (ctDNA) revealed a moderate affinity with apparent binding constants in the 104 M−1 range. Complexes bind DNA not by intercalation but probably by electrostatic interactions. A morphological evaluation of the cells treated with the different complexes by electron microscopy (TEM/SEM) proved that all of them induce mitochondrial alterations, which seemed more pronounced for the NH2Phen complexes. In addition, the complex [Eu(DBM)3(NH2Phen)] presented lysosomal uptake that might explain its augmented cytotoxicity.
Creator
An entity primarily responsible for making the resource
<strong>Cabral Campello, María Paula</strong>
<strong>Palma, Elisa</strong>
<strong>Correia, Isabel</strong>
<strong>Paulo, Pedro M. R.</strong>
<strong>Matos António</strong>
<strong>Rino, José</strong>
<strong>Coimbra, Joana</strong>
<strong>Costa Pessoa, João</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=6bb5dcce3e2559101357796ca4a2b2d4c9ba6b3a978a0bd4c5dab0107081b73e1ff46dcf49a7de2b571ff7980c4a01789f09f1d7eac1b879a8553641f940b9a5&formato=pdf&convocatoria=21" target="_self"><strong>Gambino, Dinorah.</strong></a>
<strong>Paulo, António</strong>
<strong>Marques, Fernanda</strong>
Source
A related resource from which the described resource is derived
Dalton Transactions v. 48, no. 14, 2019. -- p. 4611-4624
Publisher
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Royal Society of Chemistry
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
Information about rights held in and over the resource
<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
Format
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PDF
Language
A language of the resource
Inglés
Type
The nature or genre of the resource
Artículo
Identifier
An unambiguous reference to the resource within a given context
DOI: 10.1039/C9DT00640K
Fenantrolina
Lantanidos
Microscopía
-
https://riquim.fq.edu.uy/files/original/aae0aeb5ff5646ec17fef9755ea7b3b8.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
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Departamento de Documentación y Biblioteca
RIQUIM
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Title
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<strong>An overview of environmental arsenic issues and exposure risks in Uruguay</strong>
Subject
The topic of the resource
BIBLIOGRAFIA NACIONAL QUIMICA
ARSENICO
AGUA POTABLE
CONTAMINACION AMBIENTAL
RIESGOS DE SALUD
2019
Abstract
A summary of the resource.
Evidence for low-dose health effects of Arsenic (As) in humans is still controversial and presents a major public health issue in several countries worldwide. It is not clear yet, whether there is a lower safe threshold for arsenic in drinking water among other possible sources such as food, below which, exposures are not harmful. In Uruguay, safe drinking water is supplied to 94% of the population by a state company (OSE) and As levels in workplaces and food are officially regulated. This paper aims to present and discuss the issues regarding arsenic exposure risks to the environment and human population, which are being addressed in a multidisciplinary manner in Uruguay since 2007. An overview is given on both the background and the current situation, presenting reports and research studies conducted on these problems by various academic, state, and private institutions that deal with regulations, surveillance, and health care. Scientific research on geogenic As levels in groundwater indicates As levels above those recommended by the WHO for drinking water (10 μg L-1) in different Uruguayan aquifers. There is a lack of baseline studies concerning Uruguayan residents that are exposed to As in drinking water over time. Furthermore, there is a need for data on environmental chemical exposure that could be associated with disease or death in the country. In addition, only a few As risk exposure assessment studies in children, adults, and workers using biomarkers in urine are available. Furthermore, this paper presents As levels in a rice growing region and the spatial distribution of groundwater arsenic data compared to a national cancer atlas database as ongoing research advances. Multidisciplinary research projects and local future actions are also described. This contribution constitutes a first attempt to develop a feasible health risk assessment of low-dose arsenic exposure in this Latin-American country
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<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjTxtTB4r_mAhVqHrkGHWs1D3IQFjAAegQIARAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D634eb781f2cbe0d939cf790644adfaec018225d86b7ceb9ac4a95b88749360897f4225dcae0a8b722897405f0b4e3c4d378c7b82cb9ce488150ff125f878119e%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw3cYnv5j9twWXIbaNQrV5ev" target="_self"><strong>Mañay, Nelly.</strong></a>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjUpbHa5r_mAhXnK7kGHWGCAqYQFjAAegQIAhAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D61479bcedba0147d3c3d319c58b33c3b8097d0e921a472a96c977f72410c865c0f760872b9315b74ede8b43e4be18142c73316e553e66830ee9d5a4c2cfdd139%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw27Y3Lz3kXq6ufLaHD6Mkxc" target="_self"><strong>Pistón, Mariela</strong></a>
<strong>Cáceres, M.</strong>
<strong>Pizzorno, P.</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/cv/?ca84b28131b8efed34167ae10248c656ff79f6f431726f73fdd8c44a23a4fa44a73be1d51fa2a55b8b46f6d41be849f47df0616955c90c6098e2b7de9fadc19c" target="_self"><strong>Bühl, Válery.</strong></a>
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<p>Science of the Total Environment v. 686, 2019. --p. 590-598</p>
Publisher
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Elsevier
Date
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2019
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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DOI: 10.1016/j.scitotenv.2019.05.443
Agua potable
Arsénico
Contaminación ambiental
Riesgos de Salud
-
https://riquim.fq.edu.uy/files/original/9dedc9dbc57b4cf3ef2a1811dc6e3a0b.pdf
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
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Departamento de Documentación y Biblioteca
RIQUIM
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Title
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<strong>Determination of multiclass, semi-polar pesticide residues in fatty fish muscle tissue by gas and liquid chromatography mass spectrometry</strong>
Subject
The topic of the resource
PESTICIDAS
CROMATOGRAFIA LIQUIDA
ESPECTROMETRIA DE MASA
RESIDUOS DE PESTICIDAS
PESCADO GRASO
TEJIDO MUSCULAR
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
With the aim of monitoring multiclass semi-polar pesticide residues in freshwater fatty fish, two QuEChERS approaches (so-called acetate buffered and unbuffered versions) were evaluated for the determination of 77 pesticide residues. Compounds were selected according to the dominant rainfed agriculture activities in South America. Unbuffered QuEChERS was finally chosen for validation purposes owing that it provided the best results in terms of recovery yields. Method performance was evaluated in two instrumental systems, liquid chromatography – tandem mass spectrometry (LC–MS/MS) in Scheduled MRM™ algorithm available on hybrid quadrupole – linear ion trap (QLIT) instrument, and gas chromatography – mass spectrometry (GC–MS) under selected ion monitoring (SIM) mode. Spiking experiments were carried out to determine the trueness, precision, linearity, limit of quantification of the method as well as matrix effect. The Unbuffered QuECHERS method described here: • Was validated for the analysis of 67 pesticide residues in fish muscle tissue. • Presented quantification limits in the range 1–15 μg kg−1 for the vast majority of the studied compounds. • Enable environmental monitoring of pesticide residues in fish due to their low LOQs.
Creator
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<strong>Collazo, Marcos</strong>
<strong>Alonso, Beatriz</strong>
<strong>Ernst Godoy, Federico.</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=833da37ef6f0f9787a1257ffd7f129a8a148e2bddb9022c6569913519dd3e78a15f65da0b7c2dd8ca9dbdc3632e62d77e350dfccb5cea95fd0fd8a6467c616a2&formato=pdf&convocatoria=21" target="_self"><strong>Cesio, María Verónica.</strong></a>
<a title="Curriculum Vitae" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjFsIWj5r_mAhVkIbkGHf6iB7QQFjAAegQIBRAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3Dfda2ddd3225e35b6cd0dd11333996b08c4f2ec35ccdbe92a4a51420f1bc7853e8c31c9c047392931df7517b95a6a8bc0513e278125b0cdd382223a0af2e3d381%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw27THRXuO9wnELzxGIHdvMy" target="_self"><strong>Pérez Parada, Andrés</strong></a>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=efdc2e4d27c46568e51501a117c8d64c661d28215277fe2b1621ea4a392338f0bd55c3b410eb66c8bd85997e02d92a5828f529ff076bd0478d3b4ffd01ec2037&formato=pdf&convocatoria=21" target="_self"><strong>Heinzen, Horacio.</strong></a>
<a title="Currículum" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjqsLXV5b_mAhWyCtQKHZA_BMUQFjAAegQIAxAH&url=https%3A%2F%2Fexportcvuy.anii.org.uy%2FCvEstatico%2F%3FurlId%3D77aa9dbe6d0b060d91fece6d84a42ffe0946ad560beefec6f3be9e11e9ea08747657f98adff68d667835be54dead5c07e8ddd21f0999d80491e2e8927ab5b8f6%26formato%3Dpdf%26convocatoria%3D21&usg=AOvVaw296dvoS2-denlo2RGl8xGa" target="_blank"><strong>Pareja, Lucía<br /></strong></a>
Source
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MethodsX v. 6, 2019. -- p. 929-937
Publisher
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Elsevier
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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Artículo
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DOI: 10.1016/j.mex.2019.04.014
Cromatografía Líquida
Espectometria de masa
Pescado graso
Pesticidas
Residuos de pesticidas
Tejido Muscular
-
https://riquim.fq.edu.uy/files/original/a8e4c84081168ca7f24859ee4c27e67b.pdf
0ebebc2e46cd599f97051dd7aefd7031
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Title
A name given to the resource
Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
If the image is of an object, state the type of object, such as painting, sculpture, paper, photo, and additional data
PDF
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
<strong>Electric field gradient study on pure and Cd-doped In(111) surfaces : Correlation between experiments at the atomic scale and first-principles calculation</strong>
Subject
The topic of the resource
CADMIO
CAMPOS ELECTRICOS
PROPIEDADES ESTRUCTURALES Y ELECTRONICA
PROPIEDADES ELECTRONICAS
TEORIA FUNCIONAL DE LA DENSIDAD
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
We present a complete all-electron density functional theory/ab initio study of structural and electronic properties at pure In(111) and Cd-doped In(111) surfaces, enabling a deep analysis of the electric field gradient (EFG) in these systems. We explained, from first-principles, results of previously performed key time-differential perturbed γ-γ angular correlations experiments [W. Körner et al., Phys. Rev. Lett. 49, 1735 (1982)] on In111 isotopes (which decay to Cd111 impurity probe-atoms) deposited onto the In(111) surface of thin films under ultrahigh vacuum, adding inactive indium layer by layer, carefully designed to determine the EFG at different depths from the surface. We confirmed the existence of only two hyperfine interactions, one related with Cd111 probes localized at the two more superficial In sites (HFIS), and the other related with probes localized in any of the other inequivalent In sites existing from the surface towards the bulk (HFIB). In the case of HFIS, V33 is oriented normal to the (111) surface, and for HFIB we found a V33 orientation parallel to the [001] axis and coincident with the orientation predicted for both the pure and Cd-doped In bulk (not determined experimentally at present), enabling us to confirm the experimental assignment of HFIB. The axial symmetry that the EFG has in pure and Cd-doped In bulk systems is broken when the surface is generated and is recovered as the probe (In or Cd, respectively) goes deeper from the surface into the bulk. We separated the structural and electronic effects and their sources in the pure and Cd-doped In(111) surface. For the Cd-doped systems we confirm the experimental ratio |V33S/V33B|≈4, showing that light structural modifications have in important impact on the Cd p-states distribution, which governs the V33 behavior. Finally, from the combination of the predicted V33 for the Cd-doped systems as a function of the depth of the Cd localization from the surface with the experimental fractions of HFIS and HFIB, we demonstrated that a single 3-Å active monolayer was enough to explain the origin of these fractions (in discrepancy with the previous interpretation of the experiments), proposing a deposition rate for the inactive In layers, in agreement with the experimental fraction evolution as a function of inactive In deposition.
Creator
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<strong>Darriba, Germán N.</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=2f2e59581473324400ee29ded741b9090cc25a893e73d02669ebfbc674c9e8b9b51bb30e2bca064dc7ebbd5c39aa3c844e86e507301e912aa1b0a5ae17423fa2&formato=pdf&convocatoria=21" target="_self"><strong>Faccio, Ricardo.</strong></a>
<strong>Rentería, M.</strong>
Source
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Physical Review B v. 99, no. 19, 2019, -- e195435
Publisher
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American Physical Society
Date
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2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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Artículo
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DOI: 10.1103/physrevb.99.195435
Cadmio
Campos Electricos
Propiedades electrónicas
Propiedades estructurales y electronica
-
https://riquim.fq.edu.uy/files/original/48c2e0584376b6d04108c46d91d6b014.pdf
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Title
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Bibliografía Nacional Química
Description
An account of the resource
Contiene la producción científica nacional de los profesionales químicos e investigadores, durante el período 1929 hasta la fecha.
Contributor
An entity responsible for making contributions to the resource
Departamento de Documentación y Biblioteca
RIQUIM
Document
A resource containing textual data. Note that facsimiles or images of texts are still of the genre text.
Original Format
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PDF
Dublin Core
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Title
A name given to the resource
<strong>Heterogeneous photo-fenton process using iron-modified regional clays as catalysts : Photonic and quantum efficiencies</strong>
Subject
The topic of the resource
ARCILLA
CATALISIS
EFICIENCIA CUANTICA
EFICIENCIA FOTONICA
BIBLIOGRAFIA NACIONAL QUIMICA
2019
Abstract
A summary of the resource.
A regional raw clay was used as the starting material to prepare iron-pillared clays with different iron contents. The catalytic activity of these materials was tested in the heterogeneous photo-Fenton process, applied to the degradation of 2-chlorophenol chosen as the model pollutant. Different catalyst loads between 0.2 and 1.0 g L−1 and pH values between 3.0 and 7.0 were studied. The local volumetric rate of photon absorption (LVRPA) in the reactor was evaluated solving the radiative transfer equation applying the discrete ordinate method and using the optical properties of the catalyst suspensions. The photonic and quantum efficiencies of the 2-chlorophenol degradation depend on both the catalyst load and the iron content of the catalyst. The higher values for these parameters, 0.080 mol Einstein−1 and 0.152 mol Einstein−1, respectively, were obtained with 1.0 g L−1 of the catalyst with the higher iron content (17.6%). For the mineralization process, photonic and quantum efficiencies depend mainly on the catalyst load. Therefore, it was possible to employ a natural and cheap resource from the region to obtain pillared clay-based catalysts to degrade organic pollutants in water
Creator
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<strong>De León, María A.</strong>
<strong>Sergio, Marta</strong>
<a title="Curriculum Vitae" href="https://exportcvuy.anii.org.uy/CvEstatico/?urlId=ee1642eb93f5e15a34e8d7bc4d2047d3faecc7f72a37bab3283c76228a5b7f1b6a68ac01bc244754abda800e3d0e7c50a882e56b81aa22781f6305b59dc75cb3&formato=pdf&convocatoria=21" target="_self"><strong>Bussi, Juan</strong></a>
<strong>Ortiz de la Plata, Guadalupe B.</strong>
<strong>Alfano, Orlando M.</strong>
Source
A related resource from which the described resource is derived
Environmental Science and Pollution Research v. 26, no. 13, 2019. -- p. 12720-12730
Publisher
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Springer
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
Rights
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<p><strong>Información sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislación uruguaya protege el derecho</strong> de autor sobre toda creación literaria, científica o artística, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeción a lo establecido por el derecho común y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptación de las siguientes condiciones de uso: Este documento es únicamente para usos privados enmarcados en actividades de investigación y docencia. No se autoriza su reproducción con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilización o cita de partes debe indicarse el nombre de la persona autora.</p>
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PDF
Language
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Inglés
Type
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Artículo
Identifier
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DOI: 10.1007/s11356-019-04762-6
Arcilla
Catálisis
Eficiencia Cuantica
Eficiencia Fotonica