Results 21 to 30 of about 8,395 (145)
The aminoindanol core as a key scaffold in bifunctional organocatalysts
Beilstein Journal of Organic Chemistry, 2016 The 1,2-aminoindanol scaffold has been found to be very efficient, enhancing the enantioselectivity when present in organocatalysts. This may be explained by its ability to induce a bifunctional activation of the substrates involved in the reaction. Thus,
Isaac G. Sonsona +2 more
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Synthesis and supramolecular self-assembly of glutamic acid-based squaramides
Beilstein Journal of Organic Chemistry, 2018 We describe the preparation and characterization of two new unsymmetrical squaramide-based organogelators. The synthesis of the compounds was carried out by subsequent amine condensations starting from dimethyl squarate.
Juan V. Alegre-Requena +6 more
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¿Por qué predominan los gobiernos de mala calidad?
Panorama Económico, 2005 Este documento analiza la abstención electoral de los votantes como un problema de información asimétrica en el mercado político. A través del esquema de análisis planteado por George Akerlof (1970), se sugiere que la existencia de programas de gobierno ...
Jorge Luis Navarro
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Intramolecular Hydrogen Bond in Biologically Active o-Carbonyl Hydroquinones
Molecules, 2014 Intramolecular hydrogen bonds (IHBs) play a central role in the molecular structure, chemical reactivity and interactions of biologically active molecules.
Maximiliano Martínez-Cifuentes +3 more
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Educación Química, 2018 La quiralidad es un fenómeno estrechamente ligado a la naturaleza y a la vida. Nuestro metabolismo depende del reconocimiento selectivo que se lleva a cabo entre enzimas, receptores y diversos sitios activos que poseen una quiralidad determinada.
Zara J. Domínguez Esquivel
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Criptografía simétrica vs. asimétrica [PDF]
, 2021 Traballo Fin de Grao en Matemáticas. Curso 2020-2021[GL] A criptografía clásica xorde no século V a.C. ligada ao mundo militar e co único fin de ocultar mensaxes dun xeito rudimentario.
Rodríguez Gómez, Sara
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External structures at the nest‐site predict asymmetric architecture of nests in a mud‐building bird
Ibis, Volume 168, Issue 4, Page 1696-1703, October 2026.In the animal kingdom, nests are essential structures and textbook examples of extended phenotypes. However, the relationship between builders, nest traits and the nest‐site remains poorly understood. We indirectly examine whether structures in the nest‐site influence nest‐building behaviour, specifically focusing on their effect on nest architecture ...
Nicolas M. Adreani +2 more
wiley +1 more source
Síntese estereoselectiva e asimétrica: conceptos xerais [PDF]
, 2012 Titulación: Licenciatura en Química -- Materia: Síntese AsimétricaA Síntese Asimétrica é unha materia optativa incluída no 5º curso da titulación de Licenciatura en Química.
Gulías Costa, Moisés
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Coumarin compounds against Alzheimer's disease: An in-silico approach
Results in ChemistryAlzheimer's disease, one of the most common causes of senile dementia, has no cure which makes the development of new treatments crucial. In this regard, secondary metabolites from plants have shown important bioactivity, including the inhibitory effect ...
Mayra Avelar +3 more
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Blocking the Poor: Status Quo Bias in Policy Congruence
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT Research on unequal responsiveness has shown that policies tend to align more closely with the preferences of high‐income citizens than low‐income citizens. Using comparative data on opinions and policies, we suggest that this inequality primarily results from status quo bias; asymmetric blocking power drives unequal congruence rather than ...
Mikael Persson, Anders Sundell
wiley +1 more source