Results 31 to 40 of about 1,164,527 (302)

Las lenguas quechuas en tres países andino-amazónicos: de las cifras a la acción ciudadana

open access: yesKáñina, 2021
En este artículo, se examinan distintos aspectos de la situación actual de las lenguas quechuas en tres países andino-amazónicos: Ecuador, Perú y Bolivia.
Luis Andrade Ciudad, Rosaleen Howard
doaj   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Turning Green Into Gold: The Impact of Green Intellectual Capital on Performance in European Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines the impact of green intellectual capital (GIC)—green human, structural and relational capital—on business performance in European firms. Using Eurobarometer 498 data and Partial Least Squares Structural Equation Modelling (PLS‐SEM), results show that GIC explains 15.4% of the variance in business performance, with green ...
María del Carmen Peces Prieto   +2 more
wiley   +1 more source

Synergistic Action of Ascorbic Acid and Readily Accessible NHC^N Ligands for the Oxidation of Gold(I) With Electron‐Rich Aryldiazonium Salts

open access: yesChemistry – A European Journal, EarlyView.
The synergic action of ascorbic acid and NHC^N ligands enables Au(I) oxidation with electron‐rich aryldiazonium salts. ABSTRACT The synergistic action of ascorbic acid and NHC^N ligands enables the challenging oxidation of Au(I) with electron‐rich aryldiazonium salts in the absence of a cocatalyst and/or irradiation. EPR, NMR, and x‐ray analyses reveal
Paula G. Cárdenas‐Cárdenas   +7 more
wiley   +1 more source

Construir ciudad

open access: yesCiudades, 2018
En este artículo de introducción se recogen las principales ideas desarrolladas en las Jornadas de Estudio, donde el modo de hacer ciudad se presentó como cuestión clave para el futuro de la urbanística. No todas las ciudades son iguales, y por tanto, dependiendo de sus potencialidades y sus necesidades se debe actuar para desarrollar su proyecto de ...
openaire   +4 more sources

¿Ciudad urbana igual a ciudad humana?

open access: yes9° Congresso Città e Territorio Virtuale, Roma, 2, 3 e 4 ottobre 2013, 2014
Peer ...
Méndez Toledo, Marta Alicia   +1 more
openaire   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Marco conceptual de los síndromes depresivos en las esquizofrenias.

open access: yesRevista de la Asociación Española de Neuropsiquiatría, 1989
Una fuente de importante morbilidad en los pacientes esquizofrénicos, tanto en el episodio psicótico agudo como en la fase de recuperación del mismo, es la sintomatología depresiva o pseudo depresiva.
Antonio Ciudad Herrera
doaj  

Design and implementation of a 3D‐printed modular distillation tower for experimental teaching in chemical engineering

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Several authors have reported the disconnection between the skills, abilities, and attitudes of graduates from STEM careers with the current needs of the labour market. In science and engineering fields, research has found the need for interdisciplinary approaches that encourage meaningful learning.
Úrsula Manríquez‐Tolsá   +7 more
wiley   +1 more source

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