Artículos Científicos: Envíos recientes
Mostrando publicaciones 3401-3420 de 3929
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The heterogeneous nature of urban poor families
(2012)This paper addresses the scholarly debate on cultural homogeneity or heterogeneity of urban poor families. While authors such as Lewis (1959) or Wacquant (2000; 2001) claim that structural disadvantages are linked to a ...
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Observations on the emergence rates of Meteorus pulchricornis (Hymenoptera: Braconidae) and densities of Uresiphita polygonalis maorialis (Lepidoptera: Crambidae) larvae
(2011)Uresiphita polygonalis maorialis (the kowhai moth) is a well-known defoliator of Sophora spp. plants in New Zealand. Here data is presented from an experiment carried out between December 2007 and February 2008. The ...
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Flowering and fruiting phenology of the endangered Chilean tree Gomortega keule
(2011)Gomortega keule is endemic to Chile and belongs to the monotypic family Gomortegaceae. Although it produces edible fruits and good-quality wood, it is not cultivated. Information on reproductive phenology may help address ...
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Ethnobotany of Gomortega keule, an endemic and endangered Chilean tree
(2011)Gomortega keule (Mol.) Baillon, known locally as queule, is an endangered tree endemic to Chile. The literature states that the main uses of this species are fruit consumption and exploitation of the wood, but there are ...
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Somatic embryogenesis from zygotic embryos and shoot-tips of the Chilean tree Gomortega keule
(2012)The endangered Chilean tree Gomortega keule (Mol.) Baillon produces edible fruit, making it a potential crop. However, its cultivation from seed or cuttings is extremely difficult. This paper reports the induction of somatic ...
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Predictors of exposure to organophosphate pesticides in schoolchildren in the Province of Talca, Chile
(2012)Background: Few data exist in Latin America concerning the association between organophosphate (OP) urinary metabolites and the consumption of fruits and vegetables and other exposure risk variables in schoolchildren. ...
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Influence diagnostics on the coefficient of variation of elliptically contoured distributions
(2011)In this article, we study the behavior of the coefficient of variation (CV) of a random variable that follows a symmetric distribution in the real line. Specifically, we estimate this coefficient using the maximumlikelihood ...
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Inherent relevance of MRMT models to concentration variance and mixing-induced reactivity
; ; ; Rojas, Alejandro
(2017)
Several anomalous transport approaches have been developed to model the interaction between fast advectivelydominated transport in well-connected porosity and fracture structures and slow diffusively-dominated transport ...
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A non-Newtonian gradient for contour detection in images with multiplicative noise
Mora, Marco; Cordova-Lepe, Fernando ; (2012)
In this paper, a new operator for contour detection in images with multiplicative noise is presented. Traditional methods of edge detection, as those based in gradient operator or measures of variance, follow a logic and ...
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Preparation and evaluation of pickles made from asparagus waste stems
(2012)El objetivo general de la presente investigación fue elaborar encurtidos de espárragos, manteniendo el color verde obteniendo un producto aceptable, determinar el método de elaboración de encurtido para turiones de espárragos, ...
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Pectin extraction from cv. Pink Lady (Malus pumila) apples
(2011)El presente estudio tuvo como objetivo la extracción de pectina a partir de manzana (Malus pumila), cv. Pink Lady, con un promedio de madurez fisiológica de un 50% color rojo de cubrimiento, mediante técnicas químicas ...
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Antropometría como predictor de diabetes gestacional: Estudio de cohorte
(2010)Background: Gestational diabetes mellitus (GDM) is a high incidence disease. Easily measured predictor factors could help to implement preventive policies and early detection tests. Aim: To measure recognizable risk factors ...
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Black carbon contribution in volcanic soils affected by wildfire or stubble burning
(2012)Forest wildfire and stubble burning practices in agriculture contribute to the formation of black carbon (BC), a continuum of pyrogenic carbon ranging from slightly charred degradable biomass to highly condensed refractory ...
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Are organo-mineral complexes and allophane content determinant factors for the carbon level in Chilean volcanic soils?
(2012)The existing information on soil carbon (C) stabilisation in allophanic soils is conflicting because active Al3+ and sesquioxides (i.e., the oxides/hydroxides of Al and Fe) as a stabilising agent of soil C are emphasised ...
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Terremoto 8.8: impacto en el desempeño académico de los alumnos de educación básica en Chile
(2012)El objetivo principal de este trabajo es determinar las variables de efectos generados por el terremoto, que incidieron en el rendimiento académico de los estudiantes de los cinco principales centros urbanos de la región ...
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Consumer preferences and willingness to pay for organic apples
(2012)Este estudio provee información de comercialización, con respecto a las preferencias y disposición a pagar por manzanas orgánicas. Específicamente, los objetivos de este estudio fueron determinar la disposición a pagar ...
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Phenological cycle and floral development of Chloraea crispa (Orchidaceae)
Steinfort, Ursula; ; ; ; (2012)
Chloraea crispa Lindl. (Orchidaceae) es una orquídea terrestre endémica de Chile, con potencial como nueva alternativa para la industria de flor de corte. Los objetivos de este estudio fueron describir el ciclo fenológico ...
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First remarks on the nesting biology of Hypodynerus andeus (Packard) (Hymenoptera, Vespidae, Eumeninae) in the Azapa valley, northern Chile
(2012)First remarks on the nesting biology of Hypodynerus andeus (Packard) (Hymenoptera, Vespidae, Eumeninae) in the Azapa valley, northern Chile. Some aspects about the nesting biology of the potter wasp Hypodynerus andeus ...
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Validación de dos escalas utilizadas en la medición del cuidado humano transpersonal basadas en la teoría de Jean Watson
Poblete, Margarita; ; (2012)
Objetivo: validar Caring Efficacy Scale y Nyberg´s Caring Assessment, elementos basados en la Teoría Transpersonal del Cuidado Humano que se fundamenta en los aspectos humanos y éticos del cuidado. Método: los instrumentos ...
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¿Es posible la integración residencial en las ciudades chilenas? Disposición de los grupos medios y altos a la integración con grupos de extracción popular
(2012)Con relativa independencia de su nivel social, edad y sexo, los residentes de las ciudades chilenas de Santiago, Antofagasta y Temuco muestran una significativa disposición a la integración residencial con personas de otra ...