Results 61 to 70 of about 1,044,333 (178)
Diastereoselective Addition of Diazomethane to Zaluzanin A
Natural Product Communications, 2014 The diastereoselectivity of diazomethane addition to the conjugated double bond of α,β-unsaturated sesquiterpene lactones was explored using zaluzanin A ( 1 ) as a model.
Adriana Ortiz-León +6 more
doaj +1 more source
Polyphenol‐Rich Foods as a Healthy and Sustainable Strategy: Mental Health and Metabolomic Profiling
Molecular Nutrition &Food Research, Volume 70, Issue 19, 15 October 2026.A 12‐week nutritional intervention with cocoa flavanols and red‐berry anthocyanins in older adults improved emotional well‐being and identified metabolomic signatures associated with the intervention through urinary metabolome profiling. ABSTRACT The so‑called demographic transition has increased the prevalence of chronic diseases in adults over 65 ...
María Lucía Gómez Nieto +6 more
wiley +1 more source
Journal of Applied Crystallography, Volume 59, Issue 5, Page 1467-1477, October 2026.A new efficient embedding mechanism for molecule‐in‐a‐crystal electron‐density calculations during Hirshfeld atom refinement is made available in NoSpherA2 and benchmarked.One of the main advantages of Hirshfeld atom refinement (HAR), besides improved refinement statistics and reduced uncertainties of all derived parameters, is the possibility of ...
Bruno Landeros-Rivera, Florian Kleemiss
wiley +1 more source
QUÍMICA ANALÍTICA INSTRUMENTAL - FACULTAD DE QUÍMICA
, 2003 Programa de Aprendizaje de QUÍMICA ANALÍTICA INSTRUMENTAL de la Facultad de ...
INGENIERÍA QUÍMICA
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European Journal of Oral Sciences, Volume 134, Issue 5, October 2026.Abstract This study evaluated the effect of the number of simulated endodontic treatment visits and the type of irrigant on the surface roughness, microhardness, topography, and fracture resistance of root dentin. Bovine roots were distributed into six groups (n = 14) according to the irrigant and number of treatment visits: 0.9% saline solution ...
Yasmin Padoin +5 more
wiley +1 more source
International Endodontic Journal, Volume 59, Issue 10, Page 2211-2222, October 2026.ABSTRACT Aim The aim was to characterize the taxonomic and functional composition of the microbiome involved in primary endodontic infections and to evaluate their association with the periapical lesion size using shotgun metagenomic sequencing. Methodology Samples from primary root canal infections diagnosed with apical periodontitis were analysed ...
Virginia Pérez‐Carrasco +5 more
wiley +1 more source
Formulación y nomenclatura química [PDF]
, 2018 Colección de once vídeos, cada uno dedicado a un tipo específico de compuestos, que aborda la formulación y nomenclatura química. Se recomienda consultar el manual "NOMENCLATURA DE COMPUESTOS QUÍMICOS.
López de la Torre, María Dolores +6 more
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ChemSusChem, Volume 19, Issue 18, 28 September 2026.This review explores the potential of multimetallic organic framework (MMOF) composites as photocatalysts. It demonstrates the impact of the composite architecture on the photocatalytic performance and existing challenges. The paper highlights heterojunction mechanisms and the role of each partner composites in degradation, CO2 reduction, H2 production,
Youjian Chen +8 more
wiley +1 more source
GeogacetaLa erupción volcánica de 1712, de El Charco, es una de las peor conocidas de las 8 erupciones históricas de la isla de La Palma. Fue un evento principalmente estromboliano, con fases hidromagmáticas, durante el cual se abrieron múltiples bocas a lo ...
Nicolás Chicharro +3 more
doaj +1 more source
La zaratita de Cabo Ortegal (A Coruña): historia de su descubrimiento y caracterización actual
Estudios Geologicos, 2014 La zaratita, Ni3CO3(OH)4.4H2O es uno de los pocos minerales descubiertos en España. Por ser una fase de baja cristalinidad y presentar una composición química variable según los diferentes yacimientos, la International Mineralogical Association (IMA ...
A. La Iglesia +2 more
doaj +1 more source