Results 61 to 70 of about 200,943 (258)

DESARROLLO RURAL: MÁS QUE DESARROLLO AGRÍCOLA

open access: yesRevista de la Facultad de Medicina Veterinaria y de Zootecnia, 2007
El desarrollo rural al igual que el sólo desarrollo, ha estado fuertemente influenciado por la ideaque lo liga con el crecimiento económico. Concebido de esta forma, la manera como se ha intentadoalcanzar desarrollo rural ha sido por medio de la modernización de los sistemas de producciónagropecuaria, del uso indiscriminado de insumos químicos para ...
openaire   +2 more sources

Anticipatory Stress in Medical Students Before Their First Cadaver Experience: A Physiological Component of Cadaver‐Based Anatomy Education

open access: yesClinical Anatomy, EarlyView.
ABSTRACT Cadaver‐based anatomy education represents a unique biological and sensory experience that may elicit significant physiological responses. However, little is known about the anticipatory phase prior to initial exposure, particularly when evaluated using objective biomarkers.
María Resino‐Rocha   +5 more
wiley   +1 more source

Rationales for the Choice of Metals for Super‐Reduced Biological Metal Centers: Cobalt in Cobalamin Versus Nickel in F430

open access: yesChemistry – A European Journal, EarlyView.
DFT calculations on porphyrin, corrin, and corphin complexes of cobalt, rhodium, iron, manganese, or nickel, and QM/MM calculations on enzyme models, explore the factors controlling the availably of super‐reduced metal(I) states. True metal(I) states are seen in corrin only for cobalt, in corphin only for nickel, and not at all in porphyrin.
Radu‐Ioan Onija   +3 more
wiley   +1 more source

Multimodal Fluorescent MOF@BODIPY Platform: Bridging Sensing and Mechanistic Insight

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Hybrid metal–organic frameworks (MOFs) that integrate organic chromophores constitute powerful platforms for optical sensing by combining structural order with tunable photophysics. Incorporating photoresponsive chromophores into MOFs enables sensitive probing of guest–framework interactions through well‐defined luminescent signatures. Herein,
Alejandro Cortés‐Villena   +8 more
wiley   +1 more source

Carba‐closo‐dodecaborates as Superchaotropic Anions

open access: yesChemistry – A European Journal, EarlyView.
The singly charged boron cluster anion CB11H12– forms strong inclusion complexes with cyclodextrins, interacts strongly with nonionic polymers, and serves as an effective transmembrane carrier, positioning itself as the smallest superchaotropic anion known to date. .
Andrea Barba‐Bon   +8 more
wiley   +1 more source

Problemas del desarrollo: ¿neocolonialismo o desarrollo autosuficiente?

open access: yesEstudios de Asia y África, 1982
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A. M. Babu, Guillermo Quartucci
openaire   +2 more sources

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr   +4 more
wiley   +1 more source

Climate‐driven resource availability drives medium‐ and broad‐scale temporal changes in owl–prey interactions over 24 years in a semi‐arid ecosystem

open access: yesEcography, EarlyView.
Predator–prey interactions are vital to ecosystem functioning but may be disrupted by climate change. We investigated a food‐web network involving three owl species over 24 years in a semi‐arid ecosystem at Bosque Fray Jorge National Park, Chile.
Jazmin M. Quiroz‐Calizaya   +12 more
wiley   +1 more source

Elecciones municipales en la RAAN

open access: yesWani
Luego de las elecciones municipales realizadas en 146 municipios del Pacífico y Centro de Nicaragua el 9 noviembre del 2008, un porcentaje importante de los electores y dirigentes liberales han acusado al Consejo Supremo Electoral (CSE), al partido de ...
Instituto para el Desarrollo de la Democracia IPADE
doaj   +4 more sources

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