Artículos de revista: Envíos recientes
Mostrando ítems 841-860 de 872
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Double hole lump interaction between halogen atoms
(American Chemical Society, 2015-03-31)In this paper a theoretical study has been carried out to investigate the nature of the unusual halogen− halogen contacts in the complexes R−X···X−R (with R = −H, −Cl, −F and X = Cl, Br, I). AIM, NBO, and MEP analyses have ... -
Composición de mamíferos medianos y grandes de la reserva natural provincial Rincón de Santa María (Corrientes, Argentina) : comparación con su zona de amortiguamiento y estado de conservación
(Sociedad Argentina para el Estudio de los Mamíferos, 2015)El presente trabajo tuvo como objetivo realizar una evaluación y comparación de mamíferos medianos y grandes de la reserva Rincón de Santa María y su zona de amortiguamiento. Los registros se realizaron mediante avistamientos ... -
Desarrollo y calibración de dispositivos fotovoltaicos para determinar el Recurso solar utilizable por SFCR.
(Asociación Argentina de Energías Renovables y Medio Ambiente, 2014-09)Para proporcionar una evaluación precisa de la capacidad de generación de dispositivos fotovoltaicos es necesario determinar de forma adecuada el recurso solar disponible. Diferentes autores afirman que celdas FV de ... -
Equipamiento multiproposito para el espacio público: cargador solar para dispositivos móviles
(Asociación Argentina de Energías Renovables y Medio Ambiente, 2016)El objetivo del presente artículo es exponer los resultados del desarrollo tecnológico denominado “Cargador Solar para dispositivos móviles” y su transferencia tecnológica en un ambiente urbano en la Región Nordeste de la ... -
Atlantic forest replacement by non native tree plantations : comparing aboveground necromass between native forest and pine plantation ecosystems
(Elsevier, 2016)Necromass is a critical structural and functional component of forest ecosystems that represents an important and relatively long-lived aboveground forest carbon pool. In the Atlantic Forest of Northern Argentina, a large ... -
Evolution during refrigerated storage of bioactive compounds and quality characteristics of grapefruit [Citrus paradisi (Macf.)] juice treated with UV-C light
(Elsevier, 2015)The effect of the UV-C light (doses: 0.0e3.94 J/cm2) on the main bioactive compounds of grapefruit juice and their stability were evaluated throughout 30 and 16 days of storage at 4 and 10 C respectively. Organic acids ... -
Minimal processing of iceberg lettuce has no substantial influence on the survival, attachment and internalization of E. coli O157 and Salmonella
(Elsevier, 2016)The influence of a selection of minimal processing techniques (sanitizing wash prior to packaging, modified atmosphere, storage conditions under light or in the dark) was investigated in relation to the survival of, ... -
Impact of pulsed light treatments on antioxidant characteristics and quality attributes of fresh cut apples
(Elsevier, 2016)The effects of pulsed light (PL) treatments combined with a quality-stabilizing dip on the quality and antioxidant attributes of fresh-cut ‘Golden delicious’ appleswas studied. Applewedgeswere dipped into a solution of 1% ... -
Uso de la radiación UV-C en el proceso de elaboración de hortalizas de IV gama
(Universidad de la República. Facultad de Agronomía, 2016)Uno de los principales factores que limita la vida útil de las hortalizas frescas es el crecimiento de microorganismos durante el almacenamiento refrigerado. Es por ello que durante la etapa de procesamiento de hortalizas ... -
Toxic trace element contents in gluten-free cereal bars marketed in Argentina
(Science and Education, 2015)Celiac disease is a food intolerance triggered by the ingestion of gluten-containing cereals; the only therapy is a strict gluten-free diet for life. In recent years, gluten-free cereal bars has achieved considerable ... -
Análisis del contenido de vitamina C y rotulado de bebidas analcohólicas de oferta habitual en la ciudad de Resistencia (Chaco, Argentina)
(Publitec, 2015-03)Las bebidas analcohólicas en la Argentina son de alto consumo, pudiendo ser una de las principales vías de ingesta de vitamina C para la población. Las formas biológicamente activas de esta vitamina son el ácido L-ascórbico ... -
Application of multivariate statistical analysis to assess browning susceptibility in sweet potatoes (Ipomoea batatas (l.) Lam.) cultivars, based on chemical and enzymatic determinations
(Universiti Putra Malaysia. Faculty of Food Science and Technology, 2018)The selection of a sweet potato cultivar for minimal processing must be performed considering the nutritional value and the lower susceptibility to browning development, which will result in greater stability of the ... -
Effects of ultraviolet radiation on the microbiological, physicochemical, and sensory properties of rangpur lime juice
(Universiti Putra Malaysia. Faculty of Food Science and Technology, 2018)Rangpur lime juice was subjected to ultraviolet (UV) radiation as a non-thermal technology and changes in/on quality characteristics (microbiological, physicochemical and sensorial) were determined in order to extend its ... -
Inactivation of Escherichia coli ATCC 25922 and Saccharomyces cerevisiae IMR-R-L 962 in grapefruit [Citrus paradisi (Macf.)] juice by UV-C light: changes in bioactive compounds and quality characteristics
(Universiti Putra Malaysia. Faculty of Food Science and Technology, 2018)The viability of UV-C treatment (0.0-2.36 J/cm²) at 254 nm as a non-thermal preservation process for grapefruit juice on microbial inactivation, the organic acids and individual flavonoids, as well as the quality ... -
Characterization of pectins extracted from different varieties of pink/red and white grapefruits [citrus paradisi (macf.)] by thermal treatment and thermosonication
(Wiley Blackwell Publishing, Inc, 2018)The physical and chemical properties of pectin extracts obtained from different white and pink/red varieties of grapefruit [Citrus paradisi (Macf.)], using both conventional heating (CHE) and thermosonication (TS), were ... -
Effect of pulsed light treatments on quality and antioxidant properties of fresh-cut strawberries
(Elsevier Sci Ltd, 2018)Fresh-cut strawberries were subjected to pulsed light treatments (4, 8, 12 and 16 J·cm−2) combined with a stabilizing dip. Quality changes and antioxidant properties were evaluated for 14 days at 5 °C. The treatments delayed ... -
Changes in quality parameters, antioxidant compounds and enzymes of phenolic metabolism of hot water-treated organic ‘cherry’ peppers
(Universiti Putra Malaysia, 2018)The present study aimed to evaluate the effect of hot water treatment on the quality, content of antioxidant compounds and activity of enzymes of the phenolic metabolism of organic ‘cherry’ peppers stored at 10°C for 14 ... -
Procesos físicos en entornos virtuales y contenidos procedimentales
(Universidad de las Tunas, 2017-04-08)En este trabajo se presenta un ejemplo de actividades para la enseñanza de la Física en el Ciclo Básico de la Educación Secundaria, que buscan desarrollar los “modos de hacer del científico”. Se utilizan simulaciones on ... -
Evaluación preliminar de la selectividad de herbicidas : pre- emergentes en el cultivo de mandioca (manihot esculenta crantz)
(Asociación Argentina de Ciencia de las Malezas, 2018)La mandioca es un cultivo de gran importancia mundial siendo su principallimitante en la producción la interferencia de malezas. El objetivo de este trabajo fue evaluar el efecto de distintos herbicidas sobre la altura y ... -
Trabajo de docente rural y aplicación de ingeniería y tecnologías de información en el ámbito laboral
(Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura, 2014)El objetivo de ésta investigación fue analizar las condiciones de trabajo de los docentes que ejercen la profesión en el nivel inicial y en los primeros años del ciclo primario, en escuelas rurales de la provincia de ...
