Results 41 to 50 of about 803,607 (186)

Caracterización fundamental de superficies metálicas a condiciones relevantes para la catálisis [PDF]

open access: yes, 2014
Heterogeneous catalysis involves chemisorption, reactions of chemisorbed species, and desorption of the products formed. The enthalpies and entropies for these elementary steps and their transition states provide the thermodynamic context that allows ...
Mónica García Diéguez
core  

Comparative review of entanglement risk assessments for cetacean conservation and management

open access: yesConservation Biology, EarlyView.
Abstract Cetacean entanglement in fishing gear remains a major global threat that exposes persistent gaps in how fisheries management frameworks manage risk to nontarget species. Ecological risk assessment (ERA) offers a structured way to link exposure and consequences to an explicit statement of risk, but entanglement risk assessments vary widely in ...
Laura Joan Feyrer   +2 more
wiley   +1 more source

NANOPARTICLES FROM WITHIN: EFFECTS OF SYNTHESIS AND STOICHIOMETRY ON EXSOLUTION

open access: yesAnales (Asociación Física Argentina)
In this work, we aim to functionalize the surface of a perovskite oxide (ABO3 structure) with Ni-Fe nanoparticles via the exsolution technique, with the goal of enhancing its electrocatalytic properties as an electrode for solid oxide cells (SOC ...
M. Santaya, H. E. Troiani, L. V. Mogni
doaj   +1 more source

Caracterización estadística del potencial eólico en el campus de Medicina de la Universidad San Pedro - Nuevo Chimbote

open access: yesINGnosis Revista de Investigación Científica, 2019
Objetivo. La presente investigación se realizó con la finalidad caracterizar mediante un tratamiento estadístico del viento el potencial eólico en el campus de medicina de la USP de Nuevo Chimbote. Materiales y métodos. La investigación es de tipo cuantitativa–longitudinal, con diseño de investigación de carácter descriptivo; donde la ...
openaire   +1 more source

Transformaciones agrícolas en la Región Pampeana Argentina y el despoblamiento en las comunidades rurales [PDF]

open access: yes, 2010
El objetivo de este trabajo, es realizar una caracterización del proceso histórico del desarrollo agrícola en la Región Pampeana, examinando al mismo tiempo, los rasgos principales del proceso de despoblamiento rural.
Ríos Carmenado, Ignacio de los   +1 more
core   +6 more sources

4D Printable Formulations of Mixed Low and High Molecular Weight Liquid Crystalline Units: A Versatile Route to Functional Soft Actuators

open access: yesMacromolecular Rapid Communications, Volume 47, Issue 9, 5 May 2026.
This work presents a practical approach for formulating 4D printable inks that incorporates substantial fractions of low molecular weight mesogens. By blending low molecular weight diacrylate or monoacrylate constituents with a high molecular weight main‐chain macromer, the resulting mixture proves suitable for direct ink writing, enabling mechanical ...
Lorena Ceamanos   +5 more
wiley   +1 more source

Alergia alimentaria gastrointestinal: prevalencia, caracterización y costos directos en un centro de remisión en Bogotá

open access: yesRevista Colombiana de Gastroenterología, 2022
Introducción: la prevalencia e incidencia de la alergia alimentaria gastrointestinal ha aumentado en los últimos años, con importantes costos asociados, pero usualmente de buen pronóstico; sin embargo, en Colombia la información es escasa. Los objetivos
Hugo Hernando Laignelet Hernández   +1 more
doaj   +1 more source

Structure and genetic diversity in wild and cultivated populations of Zapote mamey (Pouteria sapota, Sapotaceae) from southeastern Mexico: its putative domestication center [PDF]

open access: yes, 2019
Tropical fruit trees are an important component of the human diet; however, little is known about their genetic diversity levels. Zapote mamey (Pouteria sapota) is a tree native to southeastern Mexico and Central America, and Mexico is the leading ...
Arias, Renee S.   +5 more
core   +1 more source

Unpacking the Contribution of Birth Circumstances to Inequality Using a Shapley Decomposition: The Case of Chile

open access: yesReview of Income and Wealth, Volume 72, Issue 2, May 2026.
ABSTRACT This study examines the role of inherited circumstances in labor market inequality of opportunity in Chile. We estimate their contribution as the change in total inequality after removing their influence. Since this contribution may differ depending on whether it is measured before or after removing the influence of other factors, we use the ...
Carlos Gradín, Gabriela Zapata‐Román
wiley   +1 more source

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