Results 31 to 40 of about 6,236 (211)
Un polarizado Uruguay: tendencias en la estructura agraria 1990 – 2011
Revista de Economia e Sociologia Rural, 2020 Resumen: El presente trabajo es una contribución a la comprensión de algunas de las transformaciones que han ocurrido en la sociedad rural del Uruguay contemporáneo. Para hacerlo se procedió a contrastar empíricamente 3 hipótesis.
Joaquín Cardeillac
doaj +1 more source
Revista Amazónica de Ciencias Económicas, 2023 Esta investigación tuvo por objetivo determinar los planes de servicio de los Proyectos de Extensión Agraria (PEA) que generan impacto social en la Organización de los Productores Agrarios (OPA) de la región de San Martín y Amazonas, en el periodo 2005 ...
Jorge Saavedra-Ramírez
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Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane
Journal of Polymer Science, EarlyView.Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello +13 more
wiley +1 more source
International Review of Hydrobiology, Volume 111, Issue 2, December 2026.ABSTRACT This study investigated the effects of season and environmental disturbances on fish communities in neotropical rivers of the Sorocaba basin, a Sub‐Basin of the Paraná River in Southeast Brazil, based on sampling 1196 individuals from 49 species, including two non‐native and one threatened with extinction.
Natalia S. Alves +2 more
wiley +1 more source
Resenha da Revista Mexicana de Agronegocios
, 2023 Reseña de la Revista Mexicana de Agronegocios, Año XXVII, Vol. 52, enero-junio 2023, publicación oficial de la Sociedad Mexicana de Administración Agropecuaria (SOMEXAA)Review of the Mexican Agribusiness Journal, Year XXVII, Vol.
Anido R., José Daniel
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Soil physical attributes in agrosilvopastoral systems 6 years after thinning of eucalyptus
Soil Science Society of America Journal, Volume 90, Issue 5, September/October 2026.Abstract The effects of tree thinning on soil physical quality in agrosilvopastoral and silvopastoral systems are unclear. To address this gap, this study evaluated the effects of eucalyptus thinning on soil physical attributes by depth and distance from the tree line in two cropping systems (agrosilvopastoral and silvopastoral) in Brazil.
Wander Luis Barbosa Borges +7 more
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Archaeological Prospection, Volume 33, Issue 3, Page 621-646, July/September 2026.ABSTRACT High‐resolution and accurate synoptic images of terrestrial topography, even in densely forested areas, have proven valuable for archaeology by enabling the identification and characterization of relief patterns associated with ancient human activities. This study presents a novel approach that integrates digital terrain models (DTMs) obtained
Jhon A. Zabaleta‐Santisteban +13 more
wiley +1 more source
Climate change‐driven expansion of goosegrass highlights risks to global food production
Pest Management Science, Volume 82, Issue 7, Page 6494-6508, July 2026.Climate change is expanding the climatic suitability of Eleusine indica into temperate agricultural regions, increasing its overlap with major soybean and maize production areas. These findings highlight a growing global threat to food security and the need for proactive weed management strategies.
Thiago Deomar Ludwig +4 more
wiley +1 more source
Resenha da Revista Mexicana de Agronegocios
Reseña de la Revista Mexicana de Agronegocios, Año XXIX, Vol. 57, julio-diciembre 2025, publicación oficial de la Sociedad Mexicana de Administración Agropecuaria (SOMEXAA)Review of the Mexican Agribusiness Journal, Year XXIX, Vol.
Anido R., José Daniel
core +6 more sources