Results 281 to 290 of about 4,895,980 (389)

Proving Optical Anisotropy and Polarization Effects in β‐Ga2O3$\left(\text{Ga}\right)_{2} \left(\text{O}\right)_{3}$ Nanomembranes via X‐Ray Excited Optical Luminescence

Advanced Photonics Research, EarlyView.
In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado, Jaime Dolado, Pedro L. Alcázar Ruano, Daniel Carrasco, Ruth Martínez‐Casado, Valentina Bonino, Gema Martínez‐Criado, Jani Jesenovec, John S. McCloy, Francisco Domínguez‐Adame, Jorge Quereda, Emilio Nogales, Bianchi Méndez   +12 more
wiley   +1 more source

Jornadas Internas del CIMeCS (4:2015:La Plata). Reflexiones metodológicas situadas en torno de los procesos de investigación.

, 2015
Las IV Jornadas Internas del CIMeCS "Reflexiones metodológicas situadas en torno a los procesos de investigación", se realizaron el 30 de abril de 2015 en la Facultad de Humanidades y Ciencias de la Educación de la Universidad Nacional de La Plata.
openaire   +1 more source

Response to the Letter to the Editor Regarding "The Use of Antibiotics at the End of Life: A Cross-Sectional Study". [PDF]

Health Serv Insights
Miranda-Chavez B, Fuentes-Yufra A, Hueda-Zavaleta M, Copaja-Corzo C, Flores-Cohaila JA, Rivarola-Hidalgo M.   +5 more
europepmc   +1 more source

Diseño teórico de investigación y propuesta de intervención para la enseñanza de la física, basada en los estilos enseñanza y estilos de aprendizaje de los estudiantes del grado 11 del Colegio Guillermo Taborda, mediante la investigación dirigida

, 1969
Eudys Martínez Ballesteros
openalex   +2 more sources

Synthesis of Spirolactones from Carbonyls via Carboborylation of N‐Sulfonylhydrazones with Alkoxycarbonylalkylboronic Acids

Advanced Synthesis &Catalysis, EarlyView.
Spirolactones are readily prepared from carbonyls via their N‐tosylhydrazones. The reaction involves carboborylation with ethoxycarbonyl‐substituted boronic acids, followed by oxidation and lactonization. Thermal or photochemical protocols enable versatility.
Lucía López, Sara Filgueira, María‐Paz Cabal, Carlos Valdés   +3 more
wiley   +1 more source

Factores que Influyen en el Proceso de Investigación y Desarrollo Tecnológico de la Industria Militar del Perú, 2011 - 2016

, 2019
Tesis
openaire   +2 more sources

Correction: Optimizing Nodal, Wnt and BMP signaling pathways for robust and efficient differentiation of human induced pluripotent stem cells to intermediate mesoderm cells. [PDF]

Front Cell Dev Biol
Magro-Lopez E, Vazquez-Alejo E, Espinar-Buitrago MS, Muñoz-Fernández MÁ.   +3 more
europepmc   +1 more source

Normas bioéticas para lograr una investigación internacional más equitativa

, 1969
Ricardo Páez Moreno
openalex   +2 more sources

Water‐Mediated 1,7‐Palladium Aryl‐to‐Aryl Migration in an Unusual Aryne Trimerization Enables the Synthesis of Multihelicenes with Profoundly Hindered Stereogenic Axes

Advanced Synthesis &Catalysis, EarlyView.
In the presence of a Pd0 catalyst, large π‐extended arynes trimerize in an unusual manner to forge extremely compact and strained chiral benzenoids. This new trimerization reaction involves a 1,7‐Pd isomerization, a rare and poorly understood process that is elucidated.
Albert Artigas, Manuel A. Ortuño, Jesús Castro‐Esteban, Michel Giorgi, Diego Peña, Dolores Pérez, Yoann Coquerel   +6 more
wiley   +1 more source

Seminario sobre investigación y educación rural en Colombia

, 1978
Alberto Martínez Boom
openalex   +2 more sources