Results 41 to 50 of about 719,980 (296)

Studies on the genesis of adjacent Changkeng gold-and Fuwang silver-deposits, Guangdong Province, China

, 2005
The Changkeng Au- and Fuwang Ag-deposits represent an economically significant and distinct member of the Au-Ag deposit association in China. The two deposits are immediately adjacent, but the Au- and Ag-orebodies separated from each other.
Xia P, Wang XZ, Liang HY, Yu HX
core   +2 more sources

Some varieties of quartz at the epithermal silver occurrences of Tas-Kystabyt magmatic belt (Yakutia): textures, IR-spectra, X-ray luminescence

Известия высших учебных заведений: Геология и разведка, 2015
Varieties of quartz at silver occurrence Aid and silver veins of gold-rare metals deposit Ergelyah are studied. New data on the textures of comb quartz and earlier not documented the late coarse-grained quartz is presented; the IR- and X-ray luminescence
O. A. Sustavov
doaj   +2 more sources

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Cataclasis and plastic deformation of quartz at the epithermal silver occurrence Aid (Taryn subvolcanic massif, Eastern Yakutia)

Литосфера, 2015
On the silver occurrence Aid in Taryn subvolcanic massif a comb vein quartz is in some places exposed to cataclasis and plastic deformation. There are the cataclastic flow of quartz with the fragmentation of crystals, by shear microfractures and the ...
O. A. Sustavov
doaj   +2 more sources

THE ANTIBACTERIAL PROPERTIES OF MODIFIED BENTONITE DEPOSIT TAM BO [PDF]

Research Results in Pharmacology, 2016
In this article, the antibacterial properties enriched bentonite Tam Bo deposit, Lam Dong Province (Vietnam) modified in various ways: alkali – by processing enriched bentonite LiOH solution at a temperature of 60°C for 30 min, brine – by processing ...
Bui Quang, Aleksandr Vezentsev, Vladimir Bukhanov, Pavel Sokolovsky, Mariya Mihaylyukova   +4 more
doaj   +3 more sources

History of the First Ore Prospecting Expedition of 1491 in the Arctic Zone of the Russian State

Арктика и Север, 2022
In the Middle Ages, the Russian state, formed around Moscow, was in dire need of metals. However, only comparatively poor quality swamp iron was mined on the territory of the Russian principalities.
Konstantin V. Lobanov , Aleksandr Ya. Dokuchaev, Filipp V. Kulakov , Mikhail V. Chicherov   +3 more
doaj   +1 more source

Extending Service Beyond Active Duty: Generalizability of Rheumatoid Arthritis Research Conducted Among U.S. Veterans

Arthritis Care &Research, Accepted Article.
Biomedical research involving United States Veterans continues to advance healthcare beyond the Veterans Health Administration. This is particularly true in rheumatoid arthritis (RA), where Veteran‐centric research has uncovered novel insights into pathogenesis, risk factors, and disease manifestations, informing clinical care and research across both ...
Austin M. Wheeler, Joshua F. Baker, Jennifer L. Barton, Maria I. Danila, Tate M. Johnson, Kamini Kuchinad, Kaleb Michaud, Amir A. Razmjou, J. Steuart Richards, Namrata Singh, Isaac D. Smith, Katherine D. Wysham, Grant W. Cannon, Bryant R. England, Amy Joseph, Deana Lazaro, Katherine P. Liao, Courtney Loecker, Andreas Reimold, Beth I. Wallace, Ted R. Mikuls   +20 more
wiley   +1 more source

Ordovician gold-silver deposits in siliceous and sandy shales of Malguzar mountains: Bakhmal deposit

Современные инновации, системы и технологии
The article reveals the characteristics of Ordovician gold-silver deposits in the Malguzar Mountains, in particular, the Bakhmalske deposit. The authors focus on the lithological and stratigraphic structure, highlighting siliceous and sandy shales as ...
Г. Зиёдуллоев
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Central America mining industry under «the press» of the World economic crisis

RUDN Journal of Engineering Research, 2010
Silver is found as by-product component in such countries as Costa-Rica, Salvador, Honduras, Guatemala and Nicaragua in polymetallic, gold and directly in gold-silver deposits.
N V Pavlinova
doaj