Results 21 to 30 of about 1,372,765 (230)

Multicenter (FX)n/NH3 Halogen Bonds (X = Cl, Br and n = 1–5). QTAIM Descriptors of the Strength of the X∙∙∙N Interaction

open access: yesMolecules, 2017
In the present work an in depth deep electronic study of multicenter XBs (FX)n/NH3 (X = Cl, Br and n = 1–5) is conducted. The ways in which X∙∙∙X lateral contacts affect the electrostatic or covalent nature of the X∙∙∙N interactions are explored at the ...
Gabriel J. Buralli   +4 more
doaj   +1 more source

Lealtad o conveniencia. El caso de las coordinadoras (brokers) de una red clientelar en Tecámac, Estado de México

open access: yesRevista del Instituto Electoral del Estado de México. Apuntes Electorales, 2022
El propósito de esta investigación es analizar las razones por las que las coordinadoras, un grupo de mujeres que cumplen la función de brokers o intermediarias en una red clientelar en el municipio de Tecámac, Estado de México, han mantenido su ...
Rosalinda Castro, Aldo Muñoz Armenta
doaj   +1 more source

Medición del ritmo mediante un programa informático. Aplicación en músicos y gimnastas [PDF]

open access: yes, 2004
Con la finalidad de validar una batería de pruebas de ritmo, ésta se ha aplicado a tres muestras que presentan diferentes tipos y niveles de experiencia respecto de la capacidad rímitca.
Montilla Reina, María José
core  

Multi‐Scale Characterization of PLA Composites With Natural‐Based Reinforcements: From Filament to 3D‐Printed Parts

open access: yesPolymer Composites, EarlyView.
Thermal, microstructural, and mechanical characterization of 3D‐printed PLA composite parts. ABSTRACT To address plastic waste and agricultural residue underutilization, this study evaluates the thermal (DSC and FTIR), microstructural (SEM), and mechanical behavior of polylactic acid (PLA) reinforced with flax fibers and olive pit particles, processed ...
P. N. B. Reis   +6 more
wiley   +1 more source

Contribución de la geometría a la formación de la noción de estructura de grupo. Una visión histórico-epistemológica [PDF]

open access: yes, 2011
Frente al enfoque que ha enfatizado, bien sea explícita o implícitamente, que el concepto de grupo abstracto surgió al finalizar el siglo XIX, por abstracción de la noción de grupo de permutaciones, derivada de la teoría de ecuaciones algebraicas, se ...
Ortega, Erdulfo
core  

Phosphate starvation induces root cell‐type‐specific transcriptional responses and alternative splicing

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3212-3229, June 2026.
Summary Phosphate (Pi) is an essential nutrient for plant growth, and understanding how Arabidopsis thaliana root cells respond to Pi deficiency is crucial to decipher whole plant responses. We perform high‐resolution transcriptomic profiling across five distinct root cell types, identifying differentially expressed genes (DEGs) and differential ...
Mary‐Paz González‐García   +11 more
wiley   +1 more source

Revitalizing endangered mycocultural heritage in Mesoamerica: The case of the Tlahuica‐Pjiekakjoo culture

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 3, Page 907-923, May 2026.
The preservation and revitalization of mycocultural heritage, developed over centuries of human‐mushroom interaction, contributes to safeguarding both natural ecosystems and the promotion of sustainable rural development, one of the biggest global challenges currently faced by humankind.
Elisette Ramírez‐Carbajal   +8 more
wiley   +1 more source

La fotografía de la violencia de género en la prensa española generalista : aproximaciones iconográficas [PDF]

open access: yes, 2011
Grupo de Investigación en Estructura, Historia y Contenidos de la Comunicación ...
Zurbano-Berenguer, Belén
core  

ESTRUCTURA DE PROPIEDAD DE LAS FIRMAS Y GRUPOS ECONÓMICOS El caso Chileno

open access: yesCuadernos de difusión, 1993
It analyzes the ownership structure of Chilean firms and the effect that conglomerates or economic groups produce on this structure. The central hypothesis is that the ownership structure of firms owned or controlled by economic groups is not significantly different from the ownership structure of any other firm.
Paredes M., Ricardo, Flor R., Lincoln
openaire   +2 more sources

Synthesis of Polyhydroxylated Pyrrolidinyl Analogs of Sugar Nucleotides. Experimental and Computational Studies on Their Interactions With GalNAC‐T's

open access: yesChemBioChem, Volume 27, Issue 7, 14 April 2026.
A multidisciplinary approach based on organic synthesis supported by quantum mechanical calculations, efficient phosphorylation methods, affinity studies using conventional techniques and saturation transfer difference nuclear magnetic resonance, together with molecular dynamics simulations, has enabled the preparation of nucleotide analogs with ...
Pedro Merino   +10 more
wiley   +1 more source

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