Results 41 to 50 of about 1,238,997 (282)

How Halide Segregation Governs the Ion Density Evolution and Ionic Performance Losses: From Degradation to Recovery

open access: yesAdvanced Energy Materials, EarlyView.
Halide segregation (HS) in mixed‐halide wide‐bandgap (WBG) perovskites is key to the stability of perovskite‐based tandem cells and a central focus of large‐scale research efforts. Here, we find that the underlying reason for the poor stability of cells prone to HS is enhanced ionic losses during operation. Furthermore, we identified irreversible ionic
Nikhil Kalasariya   +24 more
wiley   +1 more source

La guerra de las ondas. La radio portuguesa y la Guerra Civile española

open access: yesDiacronie. Studi di Storia Contemporanea, 2011
This article analyses diverse appearances related with the intervention of the Portuguese radio in the Spanish civil war from the study of diverse documentary materials that offer interesting data for the knowledge of this individual subject of the ...
Alberto Pena Rodríguez es doctor europeo en Ciencias de la Información por la Universidad Complutense de Madrid y profesor titular de Historia de la Propaganda en la Universidad de Vigo. Ha sido presidente de la Asociación de Historiadores de la Comunicación y ha publicado diversas investigaciones sobre la historia de la comunicación y las relaciones ibéricas, entre las que se pueden citar las siguientes obras: El gran aliado de Franco. Portugal y la Guerra Civil española (1998); Galicia, Franco y Salazar (1999); Comunicación y guerra en la historia (2004); Salazar, a Imprensa e a Guerra Civil de Espanha (2007); O Que Parece É. Salazar, Franco e a Propaganda Contra a Espanha Democrática (2009).
doaj  

Marginal AMP Chain Graphs [PDF]

open access: yes, 2014
We present a new family of models that is based on graphs that may have undirected, directed and bidirected edges. We name these new models marginal AMP (MAMP) chain graphs because each of them is Markov equivalent to some AMP chain graph under ...
Jose M Pena, Jose M. Peña
core   +2 more sources

Livestock Tango: U.S. and Latin America Dance Together, but Who Will Lead?

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the competitiveness between Latin American and U.S. livestock and meat sectors. We employ a computable general equilibrium modeling framework to evaluate two scenarios: coordinated improvements in Latin American productivity, transport efficiency, and market access (Scenario I), and the minimum productivity gains required ...
Taís C. Menezes   +2 more
wiley   +1 more source

Delivering a family‐based child mental health promotion program among two resettled refugee communities during the COVID‐19 pandemic: Lessons learned in a hybrid type II implementation‐effectiveness randomized controlled trial

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Background Resettled refugee families face elevated mental health risks, compounded by structural and cultural barriers. The Family Strengthening Intervention for Resettlement (FSIR), co‐developed with resettled refugee communities, aims to improve family functioning and child mental health.
Euijin Jung   +7 more
wiley   +1 more source

Optical sensor to measure the projectile velocity [PDF]

open access: yes, 2008
Displays & Photonics Applications Group (GDAF), belonging to Electronics Technology Department of University Carlos III of Madrid (Spain), has designed and implemented a simple, cost-effective, and robust optoelectronic system to measure online the ...
Sánchez-Pena, José Manuel
core   +1 more source

Dupilumab Beyond the Airway: Decreased Morbidity in a Real‐World Analysis

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Post hoc analyses of clinical trials have characterized dupilumab's adverse effects, yet the real‐world impact in chronic rhinosinusitis with nasal polyps (CRSwNP) and asthma is not well described. This study aims to characterize the risks of lymphoma, cardiovascular events, eosinophilia, joint pain, inflammatory arthritis, and ...
Emma J. Anisman   +9 more
wiley   +1 more source

Aproximaciones conceptuales a la reincidencia penitenciaria

open access: yesRatio Juris, 2017
El tema de la reincidencia es el que inspira la elaboración del presente artículo, pues si bien desde el punto de vista meramente semántico, la Real Academia de la Lengua (2012) define el término como la reiteración de la misma culpa o defecto, así como ...
María Fernanda Ossa López
doaj   +1 more source

Volunteers: How to recruit and retain them? [PDF]

open access: yes, 2018
This research aspires to discuss and analyse the current system of recruiting and retaining volunteers in the events industry, and a comparison with the volunteer programme model existing in H3 Group.
Ismael, Izmee, Pena, Victoria
core  

Kombinierte lösungs‐ und oberflächengestützte Synthese eines vollständig kondensierten, kreuzförmigen Phthalocyanin‐Pentamers

open access: yesAngewandte Chemie, EarlyView.
Ein Phthalocyanin‐(Pc)‐Pentamer wurde durch die Kombination lösung‐ und oberflächengestützter Synthese unter Ultrahochvakuumbedingungen erhalten. Die entstandene Pc‐basierte Nanostruktur weist ein exaktes stöchiometrisches Verhältnis von 4:1 zweier unterschiedlicher Metallionen auf, mit präziser Positionskontrolle.
Luis M. Mateo   +8 more
wiley   +1 more source

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