Results 51 to 60 of about 3,398,119 (293)

Shazam! podcast del sistema Nacional de Bibliotecas SENA. 3 : érase una vez

open access: yes, 2020
En esta tercera entrega de la serie de podcast “Shazam!”, la Gestora Sistema de Bibliotecas del SENA, Martha Luz Gutiérrez narra la historia de las bibliotecas de la entidad desde las primeras bibliotecas llamadas “unidades de información técnica”, los ...

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Drivers of Sustainability Disclosure in the Healthcare Sector: Empirical Evidence From Portugal

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the determinants of online sustainability disclosure in the Portuguese public hospital sector, contributing to the growing literature on sustainability disclosure in healthcare organizations from a context that remains largely underexplored.
Yolanda Ramírez, Francisco Montero
wiley   +1 more source

Unas puntualizaciones a los bronces de Luzaga y Cortono [PDF]

open access: yesBoletín del Museo Arqueológico Nacional, 2017
En el trabajo se revisa la lectura de dos secuencias del bronce de Luzaga y del bronce de Cortono según el sistema dual de escritura utilizado en los documentos celtibéricos.
Carlos Jordán Cólera
doaj  

Carreiras duais no alto rendimento desportivo na Europa: uma revisão sistemática da literatura

open access: yesMotricidade, 2021
O desporto de alto rendimento é hoje reconhecido na Europa como um importante fator de desenvolvimento desportivo dos vários Estados-membros, mas as suas exigências são um problema, para os estudantes-atletas, que procuram compatibilizar os estudos com a
Sónia Picamilho   +2 more
doaj  

Competitividad en costos: Postensado en losas

open access: yesIngenio, 2019
La presente estudio técnico compara dos modelos de edificios con las mismas características arquitectónicas para evaluar las ventajas económicas que se obtienen al emplear un sistema de losas de hormigón con acero postensado con respecto a las de ...
José Hurtado   +2 more
doaj   +1 more source

Shazam! podcast del sistema Nacional de Bibliotecas SENA. 1 : un héroe atípico

open access: yes, 2020
Shazam es el héroe que ha venido a salvar a todos de la desinformación, en este, primer podcast del Sistema de Bibliotecas SENA titulado “Shazam” se trataran temas sobre novedades, tecnología, biblioteca y prospectiva, bibliotecas itinerantes y se narra ...

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SDG Reporting in Spanish Listed Companies: A Longitudinal Industry‐Level Analysis Using Natural Language Processing (2018–2023)

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study analyzes the evolution of Sustainable Development Goal (SDG) disclosure among IBEX 35 companies between 2018 and 2023, combining natural language processing for disclosure measurement with negative binomial generalized linear mixed models incorporating financial and governance controls.
Francisco Aguado‐Correa   +5 more
wiley   +1 more source

A General Stereochemical Model for Grignard Additions to α‐Alkoxy Nitrones: Density Functional Theory Evidence for an Intrinsic α‐Chelation‐Controlled Pathway

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A comprehensive DFT conformational study of Grignard additions to α‐alkoxy nitrones reveals that the reaction proceeds through a dinuclear α‐chelated transition structure in which the nitrone oxygen coordinates two magnesium centers. Other common additives, such as zinc dichloride, boron trifluoride, and dimethylaluminum chloride, were also studied ...
Manuel Pedrón   +2 more
wiley   +1 more source

Shazam! podcast del sistema Nacional de Bibliotecas SENA. 4 : somos memoria

open access: yes, 2020
Cuarta entrega de la serie de podcast “Shazam!”, en la que se resalta la conmemoración del mes del patrimonio cultural desde el Sistema de bibliotecas SENA, para ello se recupera un top 10 de los datos más interesantes del repositorio institucional de la

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The Crude Venom of the Whitetail Lancehead, Bothrops leucurus, and Two of Its Enzymatic Components Are Selectively Cytotoxic for Glioma Cells In Vitro

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Malignant glioma is the most common primary brain tumor, and glioblastoma multiforme (GBM) remains its most aggressive and incurable form. Snake venoms contain bioactive compounds with promising antitumoral properties against several cancer types.
M. O. H. V. Rosário   +7 more
wiley   +1 more source

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