Results 21 to 30 of about 49,830 (235)
Desenvolvimento em Questão, 2011 Este artigo objetiva discutir a questão do potencial dos movimentos sociais na renovação da sociedade a partir do caso do movimento dos agricultores na região do Alto Uruguai do Rio Grande do Sul.
Everton Lazzaretti Picolotto +1 more
doaj +1 more source
Análisis energético, exergético y ambiental del uso de aceite crudo de Jatropha curcas en motores diésel [PDF]
, 2013 Resumen: La perspectiva del cambio climático, los altos precios de los combustibles derivados del petróleo han impulsado un fuerte interés en los combustibles biomásicos para el trans-porte y la generación de energía eléctrica.
Henao Henao, Carlos Alberto
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Advanced Materials, EarlyView.To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto +10 more
wiley +1 more source
TRATAMIENTO PARA CORTES DE PERFORACIÓN CONTAMINADOS CON DIÉSEL
Revista Centro Azúcar, 2021 Introducción: En el proceso de perforación de los pozos de petróleo son utilizados lodos base agua o aceite, que durante estas actividades arrastran hacia la superficie fragmentos de rocas desprendidas por la acción de la barrena perforadora, denominados
Roberto Romero Silva +5 more
doaj
Estudio experimental de un motor Diésel consumiendo gas natural [PDF]
, 2009 El documento digital no refiere asesorPretende contribuir al entendimiento del funcionamiento de los motores Diésel-gas, en miras a incentivar una mayor utilización de nuestras reservas de gas natural y, por consiguiente, de alcanzar una menor ...
Cuisano Egúsquiza, Julio César
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Advanced Science, EarlyView.Water‐soluble amine‐functionalized polyhedral oligomeric silsesquioxane promotes concurrent latex coalescence and crosslinking, allowing epoxy‐functional particles to form continuous films without added volatile coalescing agents. The resulting multiscale‐reinforced waterborne coatings combine high strength, toughness, optical transparency, scratch ...
Chao Wang +7 more
wiley +1 more source
Espaços educativos inovadores e o olhar dos professores para a ação docente
Revista Educação e Cultura Contemporânea, 2019 Na maioria das comunidades educativas, o quadro atual de aprendizagem baseia-se na metáfora da aquisição: alunos devem adquirir conhecimento e competências e mostrar que cumprem metas específicas.
Daniela Diesel, João Filipe Matos
doaj +1 more source
U.S. Agriculture, Biofuel Markets, and Trade: Challenges and Opportunities
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Using an enhanced Computable General Equilibrium (CGE) model (GTAP‐BIO), this study assesses how the expansion in demand for Electric Vehicles (EVs) and the reduction in exports of agricultural products induced by trade disputes negatively affect US agriculture.
Rayan Wolf, Farzad Taheripour
wiley +1 more source
Revista Mexicana de Ciencias Pecuarias, 1986 Con el objetivo de encontrar alternativas para el control dé Huizache, se elaboró el presente estudio, en el que se realizaron ciertos tratamientos.
Eduardo González Valenzuela +1 more
doaj
Farmers’ Protests in Germany: Media Coverage and Types of Bias
Agribusiness, EarlyView.ABSTRACT The German farmers’ protests of 2024 sparked widespread media coverage and public debate. Yet, media coverage was not always positive, reflecting the media's attention‐seeking and selective focus. Occurrences of farmers blocking media outlets reflected distrust in how their concerns were portrayed.
Felix Schlichte, Doris Läpple
wiley +1 more source