21 research outputs found
Estimation of the burden of varicella in Europe before the introduction of universal childhood immunization
Vapor phase hydrogenolysis of glycerol to 1,2-propanediol at atmospheric pressure over copper catalysts supported on mesoporous alumina
The present work explores the hydrogenolysis of glycerol to produce 1,2-propanediol in vapor phase at atmospheric pressure over copper catalysts supported on mesoporous alumina. Catalysts were prepared by alumina impregnation varying CuO loading between 3 wt% and 30 wt%. The textural and structural characteristics of the catalysts were determined by N2 sorptometry (BET), powder X-ray diffraction (PXRD), temperature programmed reduction (TPR) and N2O chemisorption (copper metallic area). The characterization showed that all catalysts present textural properties characteristic of mesoporous solids, such as the adsorption isotherms which are type IV. Based both on characterization and activity results, it was possible to conclude that the yield to 1,2-propanediol presented a non-monotonic dependence on total copper metallic area. In addition, it was proved that 1,2-propanediol production is associated with the presence of highly dispersed CuO phase in the solids. Promising results were obtained with CuO(15)Al catalysts, taking into account that the performance can be improved by increasing residence time.Fil: Dieuzeide, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles; ArgentinaFil: de Urtiaga, R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles; ArgentinaFil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Amadeo, Norma Elvira. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles; Argentin
Microsatellite variation in potato landraces fom the island of La Palma
Nineteen microsatellite markers were used to fingerprint a set of 19 potato landraces from the island of La Palma (Canary Islands). These landraces represent relicts of early introductions from South America, although most are commonly cultivated by local farmers. The SSR primers detected 62 polymorphisms, 13 of which were present in all landraces. Several accession- and group-specific markers were detected. Jaccard similarity coefficients were estimated from the molecular data and UPGMA cluster analysis was performed. Some cultivars with related common names clustered together. In some cases, e.g., for the ¿Conejera¿ landrace, the molecular patterns were discrepant with previous species assignments, suggesting the need for a more detailed morphological and comparative study of these accessions.Se han empleado 19 marcadores microsatélites para identificar un conjunto de variedades locales de patata de la isla de La Palma (Islas Canarias). Dichas variedades locales representan a las primeras introducciones originadas en América del Sur, cultivadas la mayor parte de ellas en la isla por agricultores locales. Los iniciadores SSR generaron 62 polimorfismos, 13 de los cuales estaban presentes en todos las variedades locales. Se han detectado varias entradas y grupos de alelos específicos. Se han estimado coeficientes de similaridad a partir de los datos moleculares y se ha realizado un análisis de grupos. Generalmente, los grupos de variedades locales con nombres comunes se han agrupado conjuntamente. Sin embargo, en algunos casos como en el de la variedad local ¿Conejera¿, los patrones moleculares han mostrado discrepancias con asignaciones anteriores de especie, lo que sugiere la necesidad de un estudio morfológico y comparativo más detallado de estas entrada
Short communication. Introgression of late blight (Phytophthora infestans L.) resistance from tuber-bearing Solanum wild species into cultivated potato
We have analyzed resistance to Phytophthora infestans in five progenies derived from crosses between wild tuberbearing
potatoes (Solanum okadae, Solanum canacense, Solanum bukasovii, Solanum jamessii and Solanum
raphanifolium) and cultivated diploid potato species (Solanum phureja, Solanum goniocalyx and a dihaploid of Solanum
tuberosum). Different levels of resistance to P. infestans, from 11 to 81%, were found in leaves and tubers in the
evaluated progenies. This variation indicates a variable number of major genes (R genes), minor genes and/or defeated
R-genes, which have been transferred from the parental genotypes. Correlation analyses between leaf and tuber infection
levels were low and not significant.Se ha analizado la resistencia a Phytophthora infestans en progenies derivadas de cruzamientos entre especies silvestres
tuberíferas de Solanum okadae, Solanum canacense, Solanum bukasovii, Solanum jamessii y Solanum raphanifolium
y especies cultivadas diploides de Solanum phureja, Solanum goniocalyx y un dihaploide de Solanum tuberosum.
Se han encontrado diferentes niveles de resistencia, entre el 11 y el 81%, tanto en hojas como en tubérculos,
en las cinco progenies evaluadas Esta variación indica un número variable de genes mayores (genes R), genes menores
y/o genes R superados, los cuales han sido transferidos de los genotipos parentales. El análisis de correlación de
los niveles de infección entre hoja y tubérculo fueron bajos y no significativos
Microsatellite variation in potato landraces fom the island of La Palma
Nineteen microsatellite markers were used to fingerprint a set of 19 potato landraces from the island of La Palma (Canary Islands). These landraces represent relicts of early introductions from South America, although most are commonly cultivated by local farmers. The SSR primers detected 62 polymorphisms, 13 of which were present in all landraces. Several accession- and group-specific markers were detected. Jaccard similarity coefficients were estimated from the molecular data and UPGMA cluster analysis was performed. Some cultivars with related common names clustered together. In some cases, e.g., for the ¿Conejera¿ landrace, the molecular patterns were discrepant with previous species assignments, suggesting the need for a more detailed morphological and comparative study of these accessions.Se han empleado 19 marcadores microsatélites para identificar un conjunto de variedades locales de patata de la isla de La Palma (Islas Canarias). Dichas variedades locales representan a las primeras introducciones originadas en América del Sur, cultivadas la mayor parte de ellas en la isla por agricultores locales. Los iniciadores SSR generaron 62 polimorfismos, 13 de los cuales estaban presentes en todos las variedades locales. Se han detectado varias entradas y grupos de alelos específicos. Se han estimado coeficientes de similaridad a partir de los datos moleculares y se ha realizado un análisis de grupos. Generalmente, los grupos de variedades locales con nombres comunes se han agrupado conjuntamente. Sin embargo, en algunos casos como en el de la variedad local ¿Conejera¿, los patrones moleculares han mostrado discrepancias con asignaciones anteriores de especie, lo que sugiere la necesidad de un estudio morfológico y comparativo más detallado de estas entrada
Exploring the compositional space of a metal–organic framework with ionic liquids to develop porous ionic conductors for enhanced signal and selectivity in VOC capacitive sensors
Caracterização da clientela atendida no Núcleo de Psicologia Aplicada da Universidade Federal do Espírito Santo Profile of the clients assisted at "Núcleo de Psicologia Aplicada" (Applied Psychology Center) of the Federal University of Espírito Santo
Este artigo apresenta o perfil da clientela do Núcleo de Psicologia Aplicada da Universidade Federal do Espírito Santo, de acordo com as seguintes variáveis: sexo, idade, renda familiar, escolaridade, local de moradia, ocupação, motivo da consulta e forma de encaminhamento. Com base nos dados encontrados são feitas reflexões em torno da estruturação deste tipo de serviço, suas articulações com os serviços de saúde mental da rede pública e a formação de psicólogos no âmbito do Estado do Espírito Santo.<br>This article presents the profile of the clients assisted at "Núcleo de Psicologia Aplicada" of Federal University of Espírito Santo, according to the following variables: sex, age, family income, education, place of residence, occupation, reasons for consultation and types of assistance provided. Based on data obtained, some reflections are presented in regard to the organization of this kind of service, its relations with public mental health services and the professional preparation of psychologists in the state of Espírito Santo