Results 21 to 30 of about 663,268 (390)

Fatores que governam a especiação do cobre em ambientes aquáticos urbanos: evidências da contribuição de sulfetos solúveis Factors governing copper speciation in urban freshwaters: evidences on the contribution of soluble sulfides

Química Nova, 2007
Copper speciation and behavior in different rivers located in the city of Curitiba were evaluated in this work. Sampling locations were selected to cover different levels of urbanization regarding their anthropogenic occupation and land use.
Elizabeth W. Scheffer, Fernando F. Sodré, Marco T. Grassi   +2 more
doaj   +1 more source

Finding the Right Blend: Interplay Between Structure and Sodium Ion Conductivity in the System Na5AlS4–Na4SiS4

Frontiers in Chemistry, 2020
The rational design of high performance sodium solid electrolytes is one of the key challenges in modern battery research. In this work, we identify new sodium ion conductors in the substitution series Na5-xAl1-xSixS4 (0 ≤ x ≤ 1), which are entirely ...
Sascha Harm, Sascha Harm, Anna-Katharina Hatz, Anna-Katharina Hatz, Christian Schneider, Carla Hoefer, Constantin Hoch, Bettina V. Lotsch, Bettina V. Lotsch, Bettina V. Lotsch   +9 more
doaj   +1 more source

Geophysical and structural survey in copper occurrence located in the northern region of the Camaquã basin (RS)

REM: International Engineering Journal, 2021
The geophysical diagnosis of mineral deposits can be extremely useful in detailing mineralized zones and is a strategy for direct sampling by probing holes for content analysis.
César Augusto Moreira, Henrique Pelorca Carneiro, Matheus Felipe Stanfoca Casagrande, Marcos Eduardo Hartwig, Marco Antonio Fontoura Hansen   +4 more
doaj   +1 more source

Sclerite formation in the hydrothermal-vent “scaly-foot” gastropod — possible control of iron sulfide biomineralization by the animal [PDF]

, 2006
A gastropod from a deep-sea hydrothermal field at the Rodriguez triple junction, Indian Ocean, has scale-shaped structures, called sclerites, mineralized with iron sulfides on its foot.
Chiba, Hitoshi, Endo, Kazuyoshi, Hashimoto, Jun, Hirata, Takafumi, Horikoshi, Koki, Kato, Yasuhiro, Kirschvink, Joseph L., Kogure, Toshihiro, Kopp, Robert E., Mizota, Chitoshi, Nealson, Kenneth H., Ozaki, Noriaki, Suga, Akinobu, Suzuki, Yohey, Takai, Ken, Tsuchida, Shinji   +15 more
core   +2 more sources

Catalyzed and uncatalyzed procedures for the syntheses of isomeric covalent multi-indolyl hetero non-metallides: an account

Beilstein Journal of Organic Chemistry, 2021
Two or more indole molecules tailored to a single non-metal central atom, through any of their C2–7 positions are not only structurally engaging but also constitute a class of important pharmacophores.
Ranadeep Talukdar
doaj   +1 more source

Metal Sulfide Photocatalysts for Lignocellulose Valorization

Advances in Materials, 2021
Transition metal sulfides are an extraordinarily vital class of semiconductors with a wide range of applications in the photocatalytic field. A great number of recent advances in photocatalytic transformations of lignocellulosic biomass, the largest ...
Xuejiao Wu, Shunji Xie, Haikun Zhang, Qinghong Zhang, B. Sels, Ye Wang   +5 more
semanticscholar   +1 more source

Metatranscriptomic analysis of sulfur oxidation genes in the endosymbiont of Solemya velum

Frontiers in Microbiology, 2011
Thioautotrophic endosymbionts in the Domain Bacteria mediate key sulfur transformations in marine reducing environments. However, the molecular pathways underlying symbiont metabolism and the extent to which these pathways are expressed in situ are ...
Frank eStewart, Oleg eDmytrenko, Edward eDeLong, Colleen eCavanaugh   +3 more
doaj   +1 more source

Sulfide catabolism ameliorates hypoxic brain injury

Nature Communications, 2021
The mammalian brain is highly vulnerable to oxygen deprivation, yet the mechanism underlying the brain’s sensitivity to hypoxia is incompletely understood.
Eizo Marutani, Masanobu Morita, Shuichi Hirai, S. Kai, Robert M. H. Grange, Y. Miyazaki, Fumiaki Nagashima, L. Traeger, Aurora Magliocca, T. Ida, Tetsuro Matsunaga, D. Flicker, Ben Corman, Naohiro Mori, Yumiko Yamazaki, A. Batten, Rebecca Li, Tomohiro Tanaka, Takamitsu Ikeda, A. Nakagawa, D. Atochin, H. Ihara, B. Olenchock, Xinggui Shen, M. Nishida, K. Hanaoka, C. Kevil, M. Xian, D. Bloch, T. Akaike, A. Hindle, H. Motohashi, F. Ichinose   +32 more
semanticscholar   +1 more source

Luminescence in sulfides : a rich history and a bright future [PDF]

, 2010
Sulfide-based luminescent materials have attracted a lot of attention for a wide range of photo-, cathodo- and electroluminescent applications. Upon doping with Ce3+ and Eu2+, the luminescence can be varied over the entire visible region by appropriately
Hens, Zeger, Moreels, Iwan, Poelman, Dirk, Smet, Philippe   +3 more
core   +2 more sources

Estudo da adsorção de hidrogênio e sulfeto na superfície de paládio: aspectos experimentais (eletroquímica) e teóricos (ab initio e Teoria do Funcional da Densidade) Experimental (electrochemistry) and theoretical (ab initio and Density Functional Theory) studies of hydrogen and sulfide adsorption on palladium (100) surface

Química Nova, 2001
The adsorption of H and S2- species on Pd (100) has been studied with ab initio, density-functional calculations and electrochemical methods. A cluster of five Pd atoms with a frozen geometry described the surface.
Antônio Carlos D. Ângelo, Aguinaldo R. de Souza, Nelson H. Morgon, Júlio R. Sambrano   +3 more
doaj   +1 more source