Results 41 to 50 of about 2,041 (165)

Gestión para la protección medioambiental en la Universidad de Ciencias Médicas de Santiago de Cuba

open access: yesMedisan, 2020
El papel de la universidad en la conservación del medioambiente y la protección de sus recursos naturales se expresa mediante la integración de la dimensión ambiental en el sistema educativo y se dirige a la adquisición de conocimientos, al ...
Sara Riccis Salas Palacios   +3 more
doaj  

Evaluación de la generación de vapor de la fábrica de refrescos 23 de Agosto, en Camagüey

open access: yesMutis, 2017
El presente trabajo se llevó a cabo en la fábrica de refrescos 23 de Agosto, con el fin de evaluar la eficiencia energética del generador de vapor, determinar las pérdidas de calor en las tuberías de vapor que se encuentran sin aislamiento, determinar el
Amaury Pérez-Sánchez   +2 more
doaj   +1 more source

Evaluating composted sewage sludge as a phosphorus fertilizer in wheat grown on soils with different properties

open access: yesJournal of Environmental Quality, Volume 55, Issue 1, January/February 2026.
Abstract Urbanization generates significant amounts of sewage sludge (SS), with relatively high concentrations of plant nutrients such as phosphorus (P). When biochemically stabilized by composting, SS (composted sewage sludge [CSW]) can serve as a sustainable P source in agriculture, supporting a circular economy and reducing agriculture's dependence ...
Lucía Guerrero‐Gallardo   +7 more
wiley   +1 more source

Optimal carbon partitioning drives sink potential dynamics in large‐scale pine reforestation under climate change

open access: yesJournal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our results contribute to understanding of carbon allocation dynamics in Mediterranean pine reforestation under climate change. Following the optimum allocation principle, carbon investment to aboveground organs increased dynamically in less drought‐tolerant species and under cooler and more humid conditions.
Antonio J. Pérez‐Luque   +3 more
wiley   +1 more source

La protección medioambiental como criterio en la selección de inversiones socialmente responsables: una aproximación multicriterio

open access: yesEconomía Agraria y Recursos Naturales, 2015
La mayor concienciación medioambiental y ética de empresas y organizaciones se traslada también a la selección de carteras. En esta nota se propone un modelo multicriterio de programación por metas para la selección de carteras incorporando a los ...
Ana García-Bernabeu   +3 more
doaj   +1 more source

Impact of Molecular Design and Conjugation in Diammonium A′‐Cations on the Photovoltaic Performance of Quasi‐2D Perovskite Solar Cells

open access: yesSolar RRL, Volume 9, Issue 24, December 2025.
The chemical nature of the spacer cations employed in quasi‐2D metal halide perovskites (MHPs) matters in the performance of the perovskite solar cells (PSCs).This study presents three π‐conjugated diammonium spacers based on diphenylacetylene and on a biphenyl core flanked by alkyne moieties, which were synthesized to prepare quasi‐2D MHP thin films ...
Susana Ramos‐Terrón   +8 more
wiley   +1 more source

¿Ética ecológica o medioambiental? [PDF]

open access: yesActa Amazonica, 2009
La emergencia y la magnitud que los problemas ambientales han ganado en las tres ultimas décadas han posibilitado una gran producción científica acerca del tema de la ecología y el medio ambiente, principalmente en relación a como la humanidad se debe comportar delante de la naturaleza.
openaire   +3 more sources

Contrasting effects of vertebrate and invertebrate herbivores on leaf litter decomposition in terrestrial ecosystems: A meta‐analysis

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3372-3384, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivores influence litter quality, soil properties and decomposer communities, with cascading effects on litter decomposition. Vertebrate and invertebrate herbivores can affect decomposition through the same two pathways (litter quality‐ and soil‐mediated) but are ...
M. Paz Tapella   +4 more
wiley   +1 more source

Boron Toxicity Modulates Hypocotyl Growth Through Brassinosteroid and Thermomorphogenic‐Like Mechanisms

open access: yesPlant, Cell &Environment, Volume 48, Issue 12, Page 8803-8822, December 2025.
ABSTRACT Boron toxicity (BT) is a significant environmental stressor that negatively affects plant development, yet its molecular mechanisms remain poorly understood. Interestingly, certain toxic concentrations of boron trigger hypocotyl elongation, suggesting a complex hormonal response. In this study, we focus on the role of brassinosteroids (BRs) in
Gabriel Rennato Hassinger‐Lino   +5 more
wiley   +1 more source

Evaluation of Advanced Biofuels in Internal Combustion Engines: Diesel/Fusel Oil/Vegetable Oil Triple Blends

open access: yesFuels
In this research work, the feasibility of using fusel oil, a by-product of the sugar–alcohol industry, as an LVLC solvent in blends with straight vegetable oils (SVOs) and diesel was investigated.
Rafael Estevez   +5 more
doaj   +1 more source

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