Results 41 to 50 of about 11,350 (255)
El tratamiento de Hückel y la topología molecular: el método topológico en química
Educación Química, 2023 La topología es un área de las matemáticas que, en definitiva, no se encuentra explícita en el mapa curricular del químico; no obstante, está implícita en una infinidad de fenómenos de relevancia para las ciencias químicas, desde la estructura de ...
Tomás Guerrero +3 more
doaj +1 more source
Medisur, 2009 Background:Penicillins differ structurally among themselves by the lateral chains. At the same time, they have differences in their pharmacological action that can be associated to modifications included in the betalactamic ring and/or effects localized ...
Elso Manuel Cruz Cruz +1 more
doaj +2 more sources
Characterization of the inner membrane protein BB0173 from Borrelia burgdorferi
BMC Microbiology, 2017 Background The bacterial spirochete Borrelia burgdorferi is the causative agent of the most commonly reported arthropod-borne illness in the United States, Lyme disease. A family of proteins containing von Willebrand Factor A (VWFA) domains adjacent to a
Christina M. Brock +4 more
doaj +1 more source
Molecules, 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
PLANTS, PEOPLE, PLANET, EarlyView.Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima +3 more
wiley +1 more source
Estructura cristalina y molecular de la 2-Cloro Isonitroacetanilida [PDF]
, 1974 En este trabajo se presenta la estructura cristalina y molecular de la 2-cloro isonitrosoacetanilida, derivado de la isonitrosoacetanilida, serie que constituye una línea de investigación de la Sección de Cristalografía del C.S.I.C. de Barcelona.
MIRAVITLLES, C. +2 more
core +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Agricultural management and environmental conditions influence the biochemical composition of food crops; however, the specific drivers of this variation remain insufficiently understood, despite their importance for climate change adaptation and human health.
Kat Morgan +24 more
wiley +1 more source
Transmembrane but not soluble helices fold inside the ribosome tunnel
Nature Communications, 2018 Integral membrane proteins are assembled into the ER membrane via the ribosome-translocon channel. Here authors use in vitro translation assays and MD simulations to show that folding in the ribosome is favorable for TM helices, but unfavorable for ...
Manuel Bañó-Polo +9 more
doaj +1 more source
Estructura molecular y poblacional del ganado criollo Colombiano (GCC)
Revista Colombiana de Ciencias Pecuarias, 2016 Resumen El ganado criollo colombiano comprende un grupo de razas que se han adaptado por más de 400 años a las condiciones ecoclimáticas de nuestro país, razón por la cual poseen características adaptativas de suma importancia que podrían ser utilizadas de una manera racional en programas de conservación y mejoramiento animal.
Bedoya Berrío, Gabriel de Jesús +8 more
openaire +2 more sources
PLANTS, PEOPLE, PLANET, EarlyView.American ginseng is a shade‐obligate, North American medicinal plant that is widely traded and used internationally. To meet global demand, ginseng is cultivated in forest farms in the Appalachian region of the USA and field‐based artificial shade farms in two regions: Ontario, Canada and Wisconsin, USA. We conducted social research leveraging in‐depth
Rachel E. Palkovitz +2 more
wiley +1 more source