Results 21 to 30 of about 4,715 (189)

Public Participation in higher Education: The Role of Universities

open access: yesМодернизация, инновация, развитие, 2022
Purpose: the aim of this paper is to identify the problems of low effectiveness of public participation in higher education on the basis of the analysis of theoretical-methodological and empirical literature.Methods: this study is based on the ...
N. Y. Vlasova   +2 more
doaj   +1 more source

New data on the geological structure and zonality of the Vorontsovka gold field in the Northern Urals

open access: yesРуды и металлы, 2023
Spatial distribution of gold, copper, and iron ore deposits in the Northern Urals with the largest Turya-Auerbakh ore region is controlled by north-west trending linear zones of a probably fault nature.
Vikentyev I. V.   +5 more
doaj   +1 more source

SAMARSKITE-(Y) YFe3+Nb2 O8 : THE HISTORY OF DISCOVERY AND STUDIES OF THE FIRST NIOBATE WITH A DOUBLE WOLFRAMITE STRUCTURE [PDF]

open access: yesМинералогия, 2020
The article describes a history of studies of samarskite-(Y), YFe3+Nb2 O8 , from its discovery in the Ilmeny Mountains (South Urals) in 1839 to the moment of the solution of its crystal structure and refinement of chemical formula in 2019.
S.N. Britvin   +6 more
doaj   +1 more source

On the genesis of deposits of the Pervy Severny iron ore district

open access: yesЛитосфера, 2019
Research subject. This study was aimed at examining iron ore and ore-bearing strata in the Pervy Severny iron ore district in the Northern part of the Tagil depression.
G. A. Petrov
doaj   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

Carboniferous continental margin mafic-ultramafic sheeted dyke complex in the West Magnitogorsk zone (Southern Urals)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
In the West of the aHochthon of Magnitogorsk zone thrusted onto the Precambrian complexes of the Uraltau zone, the Devonian island-arc complexes overlap stratigraphicalry the Ordovician and Silurian chert-basalt sequences and serpentine melange.
A. V. Ryazantsev   +2 more
doaj   +1 more source

Phantom citations: An empirical study of non‐existent and unverifiable references in scholarly literature

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract The integrity of scholarly communication depends critically on the accuracy and verifiability of cited references. Citations enable readers to trace prior work, assess evidence, and situate new contributions within the existing literature. However, concerns have emerged regarding the presence of references in published papers that cannot be ...
Chengcheng Han   +3 more
wiley   +1 more source

How interference between the North Atlantic Oscillation and the tropical Indo‐Pacific convection modulates wave trains along the subtropical jet: Impacts on the Asian winter climate

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study reveals that the combined effects of the North Atlantic Oscillation (NAO) and anomalous Indo‐Pacific Walker circulation on the excitation of the wave train along the wintertime subtropical jet strongly depend on their phase combination. Their impacts interfere constructively or destructively over South Asia, leading to notable differences in
Yuki Asazuma   +2 more
wiley   +1 more source

Single nucleotide polymorphism and expression of genes for immune competent cell proliferation and differentiation in radiation-exposed individuals

open access: yesВавиловский журнал генетики и селекции, 2020
It is known that ionizing radiation influences the expression of the genes that play a key role in the mechanisms of maintaining the stability of cellular homeostasis.
E. A. Blinova   +3 more
doaj   +1 more source

Threshold Currents of Vacuum Arcs With Tungsten and Copper Cathodes

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper presents the results of an experimental study aimed at determining the threshold current for triggering a vacuum arc discharge, the probability of arc ignition and the average arc operation time depending on the current for tungsten and copper electrodes.
P. S. Mikhailov   +4 more
wiley   +1 more source

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