Results 11 to 20 of about 4,176 (181)
Using a ketal‐protected glycerol derivative (solketal) as the oxidation substrate enables site‐selective electrooxidation that suppresses C–C cleavage on non‐noble catalysts. Highly alkaline conditions promote reactive solketal alkoxide formation, weaken the Cα─H bond to facilitate dehydrogenation, and buffer local acidification, enabling a record‐high
Jiamin Wang +6 more
wiley +2 more sources
Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang +4 more
wiley +2 more sources
La minería genera impactos ambientales como drenajes ácidos de minas (DAM). El río Cali es uno de los principales recursos hídricos de la ciudad de Santiago de Cali, Colombia, y está afectado por los drenajes procedentes de minas abandonadas que llegan a
Jorge Antonio Silva-Leal +3 more
doaj +1 more source
Enhancing Maturation of Human Neuromuscular Organoids via Electrical Stimulation
A framework for on‐demand and non‐invasive exposure of human neuromuscular organoids (NMOs) to electrical stimuli is established to promote their maturation. The robustness and effectiveness of different stimulation regimes are evaluated via thorough characterization of organoid tissue structure and contraction capacity. Chronic electrical stimulation,
Chrysanthi‐Maria Moysidou +12 more
wiley +1 more source
ABSTRACT Plasmodium vivax‐associated anemia is a multifactorial clinical outcome, in which the destruction of uninfected red blood cells (uRBCs) plays a major role in disease development and severity. Here, we identified autoantibody targets within the extracellular loops of Band 3 (B3), a major erythrocyte transmembrane protein.
Aline Marzano‐Miranda +6 more
wiley +1 more source
En este artículo se analiza la evolución de nla invresión extranjera directa (IED) en el sector minas y canteras y en la extracción de carbón, lignito y turba en Colombia en el periodo de 2004 a 2013, utilizando Minero Colombiano.
Fabián Alfredo Plazas Díaz
doaj +1 more source
Remoción de Cromo total en agua, usando carbón mineral activado con radiación de microondas
Se estudió la remoción del cromo para validar el uso del carbón mineral activado mediante radiación de microondas, dicha técnica de activación fue usada anteriormente en la oxidación de nanotubos de carbono y carbón vegetal. Se buscó aplicar esta técnica
Juan de la Torre Ostos +3 more
doaj +1 more source
Post‐consumer metallized flexible packaging waste and industrial EPM waste are transformed into sustainable composites through mechanical recycling. The incorporation of 30 wt% EPM provides the most favorable balance between stiffness, ductility, and impact resistance, achieving 53.36 kJ/m2.
Tiago O. Oliveira +2 more
wiley +1 more source
La tutela administrativa de la industria del carbón
La tutela administrativa de la industria del ...
Rafael Restrepo Maya
doaj
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source

