Browsing by Issue Date Artículos de revistas
Now showing items 21-40 of 216
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(UNIV BIO-BIO, WOOD ENGINEERING DEPT, 2008)Las placas de perforación son aberturas que se encuentran ubicadas en los extremos de los elementos vasos, permitiendo el paso de fl uidos de un vaso a otro en dirección longitudinal. Existen varios tipos de placas de ...
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(2008)Se evaluó la actividad insecticida de extractos del fruto de Melia azedarach L. (Meliaceae) en distintos estados de madurez sobre Drosophila melanogaster Meigen (Diptera: Drosophilidae), con miras a su uso potencial en ...
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(ELSEVIER SCIENCE BV, 2008-03-20)Fragmentation combined with habitat loss can affect population persistence mainly by isolating habitat fragments. However, this isolation depends, in part, on the species’ perception of the surrounding matrix compared to ...
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(COLEGIO DE POSTGRADUADOS, 2008-05)In Chile, the Australian weevil Gonipterus scutellatus Gyllenhal (Coleoptera: Curculionidae), specific to eucalyptus, was first detected in 1998. It has spread trough the IV to IX Regions and could affect more than 525 ...
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(ELSEVIER, 2008-05-30)This study evaluates the effect of silvicultural and exploitative interventions on soil organic carbon (SOC) in Chilean Lenga (Nothofagus pumilio (Poepp et Endl.) Krasser) forests in south Patagonia. We analyzed SOC and ...
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(ELSEVIER, 2009)Weed control is essential for a successful establishment and growth of tree seedlings in former agricultural land. Weed control methods are effective but can be costly in terms of time, damage to nontarget vegetation, ...
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(2009)The Chilean palm, Jubaea chilensis (Front Cover), one of the most emblematic tree species of the Chilean flora, has suffered a gradual reduction of its population numbers in the last 150 years, with the estimated 120,000 ...
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(Universidad de Chile - Facultad de Ciencias Forestales y Conservación de la Naturaleza - Departamento de Gestión Forestal y su Medio Ambiente, 2009-12)Este curso de Análisis Financiero de Empresas, Segunda Edición, tiene una orientación teórica y práctica. Por una parte, se trata de estudiar los aspectos fundamentales de la teoría de las finanzas corporativas, es decir, ...
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(2010)Se reporta una riqueza total de 602 taxones específicos e infraespecíficos para la localidad de Altos de Chicauma, ubicada en la cordillera de la Costa de la Región Metropolitana de Santiago, Chile (33º S), entre 500 y ...
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(2010)Nothofagus macrocarpa forests are situated in the northern limit of Nothofagus genus distribution in South America. Data related to their growth conditions are insufficient. Above-ground biomass accumulation and growth ...
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(ELSEVIER, 2010-10)Extracts of leaves of Schinus molle Rev L. (Anacardiaceae) obtained with water or ethanol as solvents were evaluated in the laboratory for their insecticidal effect on adults of the elm leaf beetle, Xanthogaleruca luteola ...
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(Pontificia Universidad Católica de Chile, 2011)Este artículo tiene como objetivo presentar el marco conceptual y metodológico en que se desarrollan las técnicas de modelos de distribución para especies y ecosistemas. Se hace una revisión ...
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(UNIV ZULIA, FACULTAD CIENCIAS VETERINARIAS, 2011-02)Hyperlipidemia is a metabolic disorder that is characterized by a fat concentration increase in blood serum and it is known to be common in dogs. However, there is no information about how this disorder behaves in different ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2011-04)Chile depends on foreign sources for energy. A solution for this problem is needed to guarantee stability and economic development. Public policies have been proposed involving diversification of the power matrix with an ...
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(2012)Al saturar la pared celular de la madera con anhídrido acético, se reemplazan los grupos hidroxilos libres de las macromoléculas celulosa y hemicelulosa. Con ello se logra rellenar los espacios moleculares con grupos ...
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(Taylor & Francis, 2012-06-20)Forest inventory data can be used along with remotely sensed data to estimate biomass and carbon stocks over large and inaccessible forested areas. In this study, the relationship between satellite-derived multispectral ...
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(Elsevier, 2013)Recent studies all indicated that both the affinities and subdivision of Boraginaceae s.str. are unsatisfactorily resolved. Major open issues are the placement and affinities of Boraginaceae s.str. in Boraginales and the ...
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(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2013)Aim of study: The aim of the study was to assess the effect of water availability on plastic responses and biomass allocation in early growth traits of Pinus radiata D. Don. Area of study: Seedlings of 69 families of P. ...
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(Elsevier, 2013)Road traffic noise is one of the major environmental issues affecting city dwellers’ human health and well being in an urban environment. This study develops a method to assess measures to reduce traffic noise by modeling ...
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(Springer, 2013)We conduct a valuation of species protection in central Chile's Campana National Park (CNP) using the choice experiment (CE) method. The CNP has been recognized as having global relevance for the conservation of ...