Results 41 to 50 of about 40,311 (243)

Qué podemos aprender los medios, agencias y anunciantes españoles, de la experiencia francesa

Communication & Society (Formerly Comunicación y Sociedad), 1994
This article contains a deep and incisive reflection on the situation of the media in France, its weak points and the new scenario appearing after the recent legislation of the Sapin Law, which the author considers the sole option available in view of ...
Carlos Soria
doaj  

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Pyridinium Cations Act as Charge Reservoirs in Expanded Halide Perovskite Analogs at High Pressure

Angewandte Chemie, EarlyView.
Redox‐innocent pyridinium derivatives can act as charge reservoirs in expanded tin‐iodide perovskite analogs. Material compression reduces the energy gap between the pyridinium π* acceptor orbital and the valence‐band maximum, facilitating electron transfer from the framework to the molecules and thereby significantly increasing electronic conductivity
Christina R. Deschene, Feng Ke, Kostas Fykouras, Alexander C. Su, Yu Lin, Linn Leppert, Hemamala I. Karunadasa, Roc Matheu   +7 more
wiley   +2 more sources

Atuação anticíclica das agências de fomento no período 2013-2020: uma avaliação das evidências operacionais [PDF]

Economia e Sociedade
Resumo As denominadas Agências de Fomento (AF) constituem-se, no Brasil, em instrumento complementar destinado ao financiamento público, sobretudo às pequenas empresas.
Erasmo José Gomes, Márcio Bobik Braga
doaj   +1 more source

Agencias financiadoras: guía de normalización [PDF]

, 2017
Contiene: Fuentes principales en la elaboración del índice. Cómo normalizar. Ejemplos. Anexo: listado de acrónimos y correspondencias con entradas normalizadas.Fecha de actualización del documento: 28-01-2019.Detallar las agencias financiadoras en los ...
Bernal, Isabel, Oficina Técnica de DIGITAL.CSIC, Román-Molina, Juan   +2 more
core   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

Advanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas, Anh Tuan Ngo, João Pedro Vale, Ona Falcó, Gerard Martí, Mohamed Amazian, Júlia Mayans, Sònia Estradé, Marcos Gil‐Sepulcre, Teresa Andreu, Francesca Peiró, Tiago Sotto Mayor, Lluís Yedra, Jordi García‐Antón, Josep Puigmartí‐Luis, Xavier Sala, Roc Matheu   +16 more
wiley   +1 more source

Semiconducting Covalent Organic Frameworks Based on Spin‐Delocalized Trioxotriangulene Neutral Radicals

Angewandte Chemie, EarlyView.
Imine‐linked 2D covalent organic frameworks incorporating delocalized trioxotriangulene (TOT) neutral radicals were synthesized through complementary routes. Direct incorporation of an amine‐functionalized TOT radical yields a highly crystalline, porous framework (TOT‐COF‐H) with intrinsic semiconducting behavior (σRT = 1.2 × 10−4 S cm−1) and a narrow ...
Paula Escamilla, Sara Trigo‐Pérez, Rafael Ramos, Ricardo Ortiz, Manuel Vilas‐Varela, Diego Peña, Manuel Melle‐Franco, Francisco Rivadulla, Manuel Souto   +8 more
wiley   +2 more sources

Las agencias estadounidenses de evaluación de la Responsabilidad Social Empresarial

Revista de Fomento Social, 2009
Estados Unidos fue el país precursor de la Inversión Socialmente Responsable (ISR) y de las agencias de evaluación de la Responsabilidad Social Corporativa (RSC). Tanto la ISR como las agencias de evaluación de la RSC de aquel país presentan diferencias
Marta Camprodon Rosanas, José Sols Lucia, Albert Florensa Giménez   +2 more
doaj   +1 more source

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

Advanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou, Qing Wu, Jiawei Lin, Kunchen Li, Yulong Ying, Josep Puigmartí‐Luis, Salvador Pané, Sheng Wang   +7 more
wiley   +1 more source

Electrocatalytic Polarity Inversion of Azlactones: Access to α‐Quaternary Amino Acids with Electron‐Rich SOMOphiles

Angewandte Chemie, EarlyView.
Electrocatalytic polarity inversion of azlactones unlocks their coupling with electron‐rich reaction partners. Triarylamine‐mediated oxidation of the azlactone enolate generates an electrophilic radical intermediate that undergoes selective C4 functionalization with diverse SOMOphiles.
Paula Rodríguez, David Buedo, Alberto Vega‐Peñaloza, Kian Gosling, Stuart C. D. Kennington, Bart Limburg, Xavier Companyó   +6 more
wiley   +2 more sources