Results 141 to 150 of about 68,511 (289)
Análisis de riesgos y oportunidades de la producción de biocombustibles frente a la seguridad alimentaria en Colombia [PDF]
, 2018 Trabajo de investigaciónEste trabajo busca desarrollar una matriz que muestre cuales son los riesgos y oportunidades de la producción de biocombustibles frente a la seguridad alimentaria en Colombia, teniendo en cuenta factores como el desarrollo social ...
Cifuentes-Ramos, Astrid Carolina +1 more
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Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Oferta y demanda de biomasa forestal en el área de influencia de la empresa Biomass Costa Rica, Guanacaste. [PDF]
, 2014 Proyecto de Graduación (Licenciatura en Ingeniería Forestal). Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, 2014.Forest biomass concept, are those materials that emerge from timber harvesting and are not extracted because they are ...
Ulloa Leitón, Alonso
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“There Are Places Full of Beauty”: Desettling High School Students' Scientific Writing
Science Education, EarlyView.ABSTRACT This study contributes to desettling and expanding expectations about the forms of scientific language that belong in students' scientific writing. The primary empirical focus is the analysis of 52 high school student abstracts articulating community‐based investigations, submitted as part of their participation in a student conference in a ...
Alejandra Frausto Aceves
wiley +1 more source
Medición y comparación de los índices de deterioro de dos catalizadores operados con mezclas de etanol-gasolina (E10 y E20) [PDF]
, 2015 Este proyecto, surgió como una iniciativa del Grupo de Investigación en Gestión Energética (GENERGÉTICA), adscrito a la Facultad de Ingeniería Mecánica de la Universidad Tecnológica de Pereira (UTP) para continuar en el desarrollo de su línea de ...
Valencia López, William David
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A Method for Assessing the Risks to Sustainability Posed by Process Operations
Sustainable Development, EarlyView.ABSTRACT We present a framework for assessing the risks to sustainability posed by any given set of processes. The objective is to improve sustainability by enabling better decision‐making in policy and business contexts. The framework can be applied to any system of processes where available information supports discovery and quantification of ...
Richard C. Darton, Colin J. Axon
wiley +1 more source