Results 21 to 30 of about 61,385,106 (178)

Forest edges buffer effects of agricultural management on bee–plant interaction networks

open access: yesEcological Entomology, EarlyView.
Agricultural management effects: Organic and conventional crop margins host similar bee and plant species, but network structure differs: organic farms exhibit higher interaction diversity, conventional farms higher connectance. Role of forest edges: Native forest edges stabilize bee–plant networks by providing continuous floral resources and suitable ...
Samantha Marx de Castro   +6 more
wiley   +1 more source

Shazam! podcast del Sistema Nacional de Bibliotecas SENA. 9 : incluir desde la biblioteca

open access: yes, 2021
Primer capítulo del 2021 de la serie de podcast “Shazam!” en el que se trata el tema de la inclusión en el Sistema de Bibliotecas SENA, se destacan los cambios proyectados en las plataformas para personas sordas e invidentes, la publicación del último ...

core  

Addressing the Right to Food Through Food Expenditure Burdens: Distributional Evidence Among Low‐Income Farming Families in Brazil (2012–2023)

open access: yesWorld Food Policy, Volume 12, Issue 2, November 2026.
ABSTRACT Household food expenditure continues to be a key factor in ensuring the realization of the Human Right to Adequate Food. Particularly in Brazil, access to food can be limited by economic constraints in vulnerable families, especially among farming families, who have been more vulnerable to food insecurity in recent years in the country.
Lucas de Almeida Moura   +3 more
wiley   +1 more source

Plant genotypic diversity and defoliation jointly shape root exudation, fungal communities, and carbon and nitrogen cycling

open access: yesNew Phytologist, Volume 252, Issue 1, Page 324-339, October 2026.
Experimental design. Summary Intraspecific plant diversity is a major component of community diversity, yet its role in shaping plant–microbial interactions and soil functioning remains poorly understood. In particular, plant genotypic diversity may modulate ecosystem responses to defoliation, a key driver of ecosystem processes in grazed systems.
Irene Cordero   +11 more
wiley   +1 more source

Reparación del sistema de distribución mecánica [PDF]

open access: yes, 1992
Cartilla instruccional que presenta la composición, las posibles fallas (con sus probables causas) y el procedimiento de reparación del sistema de distribución mecánica de un vehículo automotor.Instruction book that presents the composition, the possible
Perea, Norman
core  

Desarrollo de un sistema de distribución para la empresa Inpraca para lograr rentabilidad en la provincia de Tungurahua ciudad Ambato

open access: yes, 2009
1. El problema 2. Marco teórico 3. Metodología de investigación 4. Propuesta 5. Conclusiones y recomendaciones.De acuerdo a la vida política, social y de trabajo en nuestro país, y tomando en cuenta los cambios que pueden tomar lugar en esta nueva era ...
Caicedo Núñez, Diego Fernando
core   +1 more source

Futuro del TPP ante el retiro de EE.UU.

open access: yesAgenda Internacional, 2017
El presente artículo tiene por finalidad analizar cuáles han sido los antecedentes que llevaron a la negociación y firma de un ambicioso Acuerdo Comercial Multilateral –TPP, que tenía por propósito establecer una zona comercial entre países del Sudeste ...
Carlos Posada
doaj  

OPENDSS aplicado al modelamiento y simulación dinámica de microrredes

open access: yesVisión Electrónica, 2018
El uso de la generación distribuida con fuentes de energías renovables no convencionales y de sistemas de almacenamiento de energía ha propiciado el cambio de los sistemas tradicionales de distribución de energía hacia las microrredes eléctricas. La idea
Carlos Daniel Vera Silva   +1 more
doaj   +1 more source

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1904-1924, September 2026.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez   +6 more
wiley   +1 more source

Ecology of declining populations of gray foxes (Urocyon cinereoargenteus) in Indiana, USA Ecología de las poblaciones en declive de zorros grises (Urocyon cinereoargenteus) en Indiana, EE.UU.

open access: yesWildlife Monographs, Volume 226, Issue 1, September 2026.
We estimated seasonal space use, cover selection, and resource selection; evaluated gene flow and potential genetic barriers; and assessed cause‐specific survival rates and reproduction of radiomarked gray foxes in Indiana, USA. Our results provide evidence that gray foxes in Indiana are an edge species with relatively large home ranges, relatively low
Tim L. Hiller   +5 more
wiley   +1 more source

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