Results 21 to 30 of about 1,304 (287)

From placer deposits to technogenic mineral formations: resource and historical perspective (a study of Amur region) [PDF]

E3S Web of Conferences, 2020
Attention to mined gold placers as sources of mineral reserve base replenishment is constantly increasing. We conducted an analysis of the field mining ratio regarding the 170-year period of gold mining history in the region, which is roughly divided ...
Mirzekhanov Gadzhi, Mirzekhanova Zoia
doaj   +1 more source

The technology of development of residue objects of precious metals placer deposits

E3S Web of Conferences, 2018
The domestic and foreign experience has been analyzed, showing that the problem of development of geographically close residue goldore deposits was practically not investigated.
Litvintsev Viktor, Alekseyev Vladimir, Kradenykh Irina   +2 more
doaj   +1 more source

Innovative methods of extracting the loose gold from technogenic deposits in the Irkutsk region

MATEC Web of Conferences, 2018
In Russia and abroad, the scope of the use of gold has significantly expanded, which undoubtedly affected the level of production. However, despite the fairly high rates of gold mining, the economic situation that has developed in recent years makes the ...
Golovina Elena, Dykusova Anastasia, Zhizhelev Maxim   +2 more
doaj   +1 more source

Gold-bearing prospects of the Nizhnegarsky ore-placer node in the Priamur province

Известия высших учебных заведений: Геология и разведка, 2023
Background. The geological structure and gold-bearing capacity of the recently identified Nizhnegarsky potential ore-placer node of the North Bureinsky metallogenic zone of the Priammur province are investigated.Aim.
V. A. Stepanov, A. V. Melnikov
doaj   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Spectral Angle Mapper Application Using Sentinel-2 in Coastal Placer Deposits in Vigo Estuary, Northwest Spain

Remote Sensing
Remote sensing applications for marine placer deposit exploration remain limited due to the mineralogical complexity and dynamic coastal processes. This study presents the first medium- to high-level detailed multi-scale remote sensing analysis of placer
Wai L. Ng-Cutipa, Ana Lobato, Francisco Javier González, Georgios P. Georgalas, Irene Zananiri, Morgana Carvalho, Joana Cardoso-Fernandes, Luis Somoza, Rubén Piña, Rosario Lunar, Ana Claudia Teodoro   +10 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Chromite placer occurrences of the Volga-Ural basin – genesis, sources and industrial potential

Georesursy
Chromium is a strategic metal, but more than a half of Russia’s needs are met by imports, so new deposits of chromites, including unconventional placer deposits, are of industrial and scientific interest. Previous studies and current works of the authors
A. V. Lalomov, I. R. Rakhimov, A. V. Grigor’eva   +2 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Dzheltulak system of the Oktyabrsky ore-placer node of the Amur gold-bearing province

Известия высших учебных заведений: Геология и разведка
Background. Information on the Dzheltulak large placer system of the Amur gold-bearing province, which has produced 80 tons of gold, is presented. Aim. To determine the geological and structural position of the Dzheltulak placer system, one of the most ...
V. A. Stepanov, A. V. Melnikov
doaj   +1 more source