Results 291 to 300 of about 1,052,040 (375)
Asian Journal of Organic Chemistry, EarlyView.Abstract This publication presents the geometries of 157 nitro‐ and polynitropyrazoles. Among these, 109 compounds were theoretically studied using mainly the B3LYP/6–311++G(d,p) level of theory. Three‐parameter Lee‐Yang‐Parr (B3LYP) is a density functional theory (DFT) method widely used in computational chemistry and constitutes an acceptable ...
Rosa M. Claramunt +3 more
wiley +1 more source
Mundo Agrario, 2012 Rural Extension, as a mechanism to tend to rural development in Argentina, has been the tool par excellence used by the states to achieve institutional objectives related to dominant politics. The present article aims at analizing the institutionality related to Rural Extension and Technical Welfare in the horticultural sector from La Plata after the ...
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Unraveling Pathway Complexity in the Supramolecular Polymerization of Z-Shaped Perylenediimides: From Kinetic <i>H</i>-Aggregates to Thermodynamic Null Supramolecular Polymers. [PDF]
J Am Chem SocSchwalb AJ +6 more
europepmc +1 more source
Synthesis of Crosslinked Biopolyesters Catalyzed by Natural Amino Acids
Asian Journal of Organic Chemistry, EarlyView.Highly crosslinked bio‐polyesters were synthesized via the ROCOP reaction between epoxidized sunflower oil and biobased cyclic anhydrides. The resulting materials were comprehensively characterized by FT‐IR, TGA, and DSC. A cross‐linked network in the bio‐based polymers has been confirmed by dynamic mechanical analysis.
Enrique Francés‐Poveda +9 more
wiley +1 more source
Engineering PdAu/CeO2 Alloy/Oxide Interfaces for Selective Methane‐to‐Methanol Conversion with Water
Angewandte Chemie, EarlyView.Selective methane‐to‐methanol conversion at 500 K over Pd0.3Au0.7/CeO2. The synergistic interaction between alloyed Pd–Au sites and the CeO2 support enhances catalytic performance, enabling highly selective methane‐to‐methanol under mild conditions. The reaction of CH4 with H2O produces CH3OH and H2, achieving ∼80% selectivity under mild conditions ...
Estefanía Fernández‐Villanueva +5 more
wiley +2 more sources
Proyecto de innovación educativa.¡Recolectípiate!-Monotipia y texturas a partir de residuos.
Se presenta una propuesta de intervención educativa, basada en la experiencia y resultadosdurante el Practicum II, desarrollada para el alumnado de primer curso del Ciclo Superior deIlustración de l Escuela de Arte de Teruel, con la que se propone un proyecto de innovacióndocente basado en un aprendizaje experimental de la técnica de la monotipia a ...
Adán Royo, Beatriz +1 more
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International Forum of Allergy &Rhinology, EarlyView.ABSTRACT Background Sinonasal mucosal melanoma (SNMM) is a rare and aggressive melanoma subtype with a notably poor prognosis. Despite molecular characterization advances, SNMM remains clinically challenging, highlighting the need for detailed molecular profiling.
Manuel Molina‐Garcia +10 more
wiley +1 more source
On‐Surface Synthesis and Characterization of Cumulene‐Linked Stone‐Wales Polymers
Angewandte Chemie, EarlyView.On‐surface synthesis of one‐dimensional polymers featuring Stone‐Wales defects and cumulene linkages is demonstrated via thermally and light‐induced reactions on Au(111). STM, nc‐AFM, and Raman spectroscopy, complemented by theory calculations, reveal their chemical structure with a non‐planar geometry, and a distinct electronic bandgap of 1.8 eV ...
Elena Pérez‐Elvira +15 more
wiley +2 more sources
Investigación y Desarrollo:Sistema Nacional de Innovación [PDF]
, 2001 Maritza Ávila Urdaneta
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