Results 71 to 80 of about 191 (160)

Dissecting the Electronic Factors Governing Phosphine Oxide Reduction With Silanes: A Computational Study

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 24, 21 August 2026.
Phosphine oxide reduction with silanes is governed by phosphine oxide distortion and silane interaction energies. In R3SiH silanes, NBO analysis reveals that n(O)→σ*(SiR) donation is distributed among several acceptor orbitals, whereas in Ph2RSiH silanes, small electronegative substituents directly bonded to silicon (RCl, OCN, OH) enhance the σ ...
Leonardo I. Lugo‐Fuentes   +4 more
wiley   +1 more source

Parasite–Host Associations in Pinworms (Trypanoxyuris spp.) From Spider Monkeys (Ateles spp.)

open access: yesAmerican Journal of Primatology, Volume 88, Issue 8, August 2026.
Lineages in pinworms from Ateles monkeys are highly host‐specific and their diversification patterns reflect host biogeographic and evolutionary histories. ABSTRACT Pinworms of primates are highly host‐specific parasites that, in several lineages, are known to share their evolutionary history with that of their hosts.
Brenda Solórzano‐García   +5 more
wiley   +1 more source

Metabolomics of Eryngium heterophyllum by UHPLC‐QToF‐MS and In Silico Insights Into Potential Metabolic Syndrome Targets

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Eryngium heterophyllum has 85 metabolites according to nontargeted UHPLC‐QTOF‐MS profiling, with flavonoids and phenylpropionic acids emerging as significantly related bioactive families. In silico compound–disease–target networks connect 31 metabolites to inflammation, diabetes, obesity, and cardiovascular disease associated with metabolic syndrome ...
Citlaly Gutiérrez‐Rodelo   +5 more
wiley   +1 more source

Sobre Michel Graulich, Le sacrifice humain chez les Aztéques

open access: yesHistoria Mexicana El Colegio de México, 2006
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Guilhem Olivier
doaj  

A Solvent‐Free Synthesis of Imidazo[1,5‐a]pyridines Using CCl4 as an Oxidant

open access: yesJournal of Heterocyclic Chemistry, Volume 63, Issue 8, Page 1288-1299, August 2026.
A solvent‐free synthesis of imidazo[1,5‐a]pyridines (Impys) using CCl4 as an oxidant reagent and DBU as the base is informed. An array of Impys derived from different benzylic, heteroaryl aldehydes and others was synthesized in moderate to good yields.
Alejandro Castillo‐Baltazar   +5 more
wiley   +1 more source

Sobre mito e historia en las tradiciones nahuas

open access: yesHistoria Mexicana El Colegio de México, 1990
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Pedro Carrasco
doaj  

Problema de ajustes del año calendárico mesoamericano al año trópico

open access: yesAnales de Antropología, 2009
En varios estudios recientes se ha argumentado que el año calendárico mesoamericano mantenía una correlación fija con el año trópico; también se han propuesto distintos métodos de ajustes periódicos mediante los cuales se habría logrado esta concordancia
Ivan Sprajc
doaj   +1 more source

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