Results 141 to 150 of about 2,806,878 (338)
La crisis en el Norte de África y su impacto en la inmigración irregular a la Unión Europea [PDF]
, 2011 Los procesos de cambio político que se suceden en el Norte de África tienen un impacto inmediato en la inmigración irregular hacia Europa. Una visión desde Frontex. Este análisis se realiza desde la perspectiva del impacto que la crisis en el Norte de
Arias, Gil
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A Scalable, Durable, Fire‐Safe All‐Day Passive Radiative Cooling Coating for Sustainable Buildings
Advanced Functional Materials, EarlyView.This study reports a scalable, durable coating that combines a fire‑retardant copolymer adhesive, hollow glass microspheres, and boron oxide to achieve passive radiative cooling with over 94% solar reflectance and >95% mid‑infrared emissivity. The coating maintains performance after UV and rain exposure and exhibits UL‑94 V‑0 fire resistance, enabling ...
Zhewen Ma +8 more
wiley +1 more source
Objeto de aprendizagem para o ensino de química : alotropia e a história da áfrica [PDF]
, 2009 Este trabalho tem como propósito descrever e analisar o processo de elaboração do objeto de aprendizagem "Alotropia e África", proposto por alunos do curso de Licenciatura em Química, da Universidade Federal de Uberlândia, Minas Gerais, Brasil, para ...
Pinheiro Soares, J. +2 more
core +1 more source
Historical and political stages of Equatorial Guinea
Revista de Cultura de Paz, 2018 This paper studies the social (political, economic and cultural) aspects of the Republic of Equatorial Guinea. We hypothesize that many African countries, as in the case of Equatorial Guinea, conceived and structured their independence apart from the ...
Carlos Oyono Nvé Oyana +1 more
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Advanced Functional Materials, EarlyView.This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou +15 more
wiley +1 more source
Transparencia y rendición de cuentas en la filantropía y la inversión social privada [PDF]
, 2015 Esta Caja de herramientas intenta informar a las organizaciones de apoyo que sirven a la filantropía respecto de los elementos esenciales de la transparencia y la rendición de cuentas para la filantropía y la inversión social privada.
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¡Grita Libertad! El nacionalismo vasco y la lucha por la independencia de las naciones africanas
Memoria y Civilización, 2012 A lo largo del siglo XX, el nacionalismo vasco ha imitado a otros movimientos a favor de la recuperación de la cultura o de la independencia de naciones sin Estado en diversas partes del mundo.
Santiago de Pablo Contreras
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Advanced Functional Materials, EarlyView.This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo +10 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Can luminol detect faecal inflammation? This study explores the development and optimisation of a rapid novel assay ‐ Myeloperoxidase Luminol Reaction (MPOLR) for the detection of faecal myeloperoxidase activity. This simple and rapid luminol‐based approach competes with clinically validated faecal biomarkers in predicting endoscopic findings in ...
Viraj Kariyawasam +14 more
wiley +1 more source
A difícil e esquecida questão do Saara Ocidental
Meridiano 47, 2017 O artigo discute a questão do Saara Ocidental, a assim chamada última colônia africana. O objetivo é mostrar o estágio atual da questão e suas perspectivas.
Pio Penna Filho
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