Results 101 to 110 of about 183,183 (145)

Helping the CCP to find its own way toward modernity : the case of NGOs providing support to migrant workers in China [PDF]

open access: yes, 2013
Este artículo aborda la sociedad civil china a través del estudio de las organizaciones de apoyo a los trabajadores migrantes. En primer lugar, se analiza cómo las ONG tratan de superar un marco legal muy restrictivo y reconfigurar así la relación con el
,, Froissart, Chloé
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Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun   +7 more
wiley   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng   +14 more
wiley   +1 more source

Migración de retorno, niveles educativos y desarrollo socioeconómico regional de México [PDF]

open access: yes, 2013
El trabajo analiza el impacto de los migrantes de retorno en la actividad económica regional, así como su impacto en los indicadores sociales regionales en México.
Jorge Eduardo Mendoza Cota
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Engineering the Hierarchical Porosity of Granular Hydrogel Scaffolds Using Porous Microgels to Improve Cell Recruitment and Tissue Integration

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski   +9 more
wiley   +1 more source

DESPLAZAMIENTO FORZOSO EN SOACHA ¿SE RECUPERAN LOS DESPLAZADOS DEL CHOQUE INICIAL? [PDF]

open access: yes
Este documento estudia la situación de los desplazados en el municipio de Soacha en comparación con migrantes y raizales comparables en términos de oportunidades laborales y educativas con propósito de determinar sus diferencias y si existe alguna ...
Patricia Neira
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Seleção de fungos entomopatogênicos para o controle de Dactylopius opuntiae Cockerel (Hemiptera: Dactylopiidae) no Semi-Árido nordestino. [PDF]

open access: yes, 2017
O objetivo deste trabalho foi selecionar fungos entomopatogênicos para controle de ninfas migrantes de Dactylopius ...
BRITO, E. S.   +5 more
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A Vascularized Microphysiological System Reproducing Endochondral Ossification in Vitro to Study Ewing Sarcoma Proliferation and Migration

open access: yesAdvanced Functional Materials, EarlyView.
A biofabricated 3D in vitro model recapitulating endochondral ossification (ECO) is described, mimicking the steps from condensation to chondrogenesis and hypertrophy, culminating with vascularization of the hypertrophic construct. As a model proof of concept application, Ewing Sarcoma cells are seeded in the model, showing modifications in their ...
Maria Vittoria Colombo   +13 more
wiley   +1 more source

RURAL-URBAN MIGRATION IN BOLIVIA: AN ESCAPE BOAT? [PDF]

open access: yes
This paper studies rural-urban migration in Bolivia. Domestic migration usually works as an equalization mechanism, in which regions with fewer economic opportunities send migrants to more dynamic regions.
Donald Pianto   +2 more
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Impacto de la migración familira en la inasistencia de los niños y niñas del 4to "A" turno matutino en la Escuela Dinamarca, Comunidad las Maravillas, municipio El Castillo, Departamento Río San Juan [PDF]

open access: yes, 2014
En los últimos cuarenta años la migración ha ido creciendo considerablemente, principalmente por factor económico y social afectando directamente a los sectores poblacionales más pobres.
Rivera Valdez, Danelia del Carmen   +1 more
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