Results 21 to 30 of about 14,643 (153)

Trade in floodplain medieval settlements of the Lower Kama region in the XII–XIV centuries (based on the finds of metal mirrors)

open access: yesПоволжская археология
The article is dedicated to the study of trade relations in the late Volga Bolgaria and the Bolgar region of the Golden Horde in the XII–XIV centuries.
Rudenko Konstantin A.   +1 more
doaj   +2 more sources

Influence of the Volga-Kama cascade of reservoirs on the hydrological regime during the flood and the quality of the spawning cycle of fish in the Lower Volga [PDF]

open access: yesE3S Web of Conferences, 2023
The Volga-Caspian fishing subarea is the most important inland fishery reservoir in Russia. For centuries, this region has been distinguished by the high productivity of mass commercial fish species.
Zhezmer Valentin, Dudakov Nikolay
doaj   +1 more source

Ultrasound Control of Gene Expression in Human iPSCs via Heat Shock Promoters. [PDF]

open access: yesBiotechnol Bioeng
ABSTRACT Inducible systems are crucial tools in biomedical research, offering researchers spatiotemporal control at the cellular level. A promising development in this field is the use of focused ultrasound for controlling gene expression using heat shock promoters (HSPs).
Howells AR   +5 more
europepmc   +2 more sources

Paleolithic of the Kazan Volga Region: research history and new data

open access: yesАрхеология евразийских степей, 2022
Main stages of the search for Paleolithic sites on the territory of the Kazan Volga region from the second half of the XIX century to the current moment are presented in the paper.
Madina Sh. Galimova
doaj   +1 more source

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

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  

+1 more source

New stratigraphic units of beds with the conchostracan fauna in the Upper Permian and Lower Triassic deposits of Eastern Europe and Siberia

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2021
The biostratigraphic analysis of conchostracans from the territory of Eastern Europe was based on the study of sections of the Middle–Upper Permian and Lower Triassic deposits of the Upper Volga, Middle Volga–Kama, Dvina–Mezen, and Pechora districts, all,
V.V. Zharinova
doaj   +1 more source

Chronology Issues of the Neolithic Cultures in the Volga-Kama Basin

open access: yesПоволжская археология, 2021
In the article, the questions of the chronology of the Neolithic cultures in the Volga-Kama basin are discussed. This discussion is based on the significant series of radiocarbon dates obtained on the different organic materials in several last years ...
Vybornov Alexander A.   +1 more
doaj   +1 more source

Evolution of protoplanetary disks from their taxonomy in scattered light: Group I vs. Group II [PDF]

open access: yes, 2017
High-resolution imaging reveals a large morphological variety of protoplanetary disks. To date, no constraints on their global evolution have been found from this census.
Banzatti, Andrea   +15 more
core   +10 more sources

Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R CrA [PDF]

open access: yes, 2009
Models predict that in the innermost AU of the disk around Herbig Ae/Be star, the dust disk forms a "puffed-up" inner rim, which should result in a strongly asymmetric brightness distribution for disks seen under intermediate inclination.
A. Meilland   +70 more
core   +7 more sources

Statistical and Typological Analysis of Pottery from the Settlements of the Late Bronze Age in the Lower Reaches of the Belaya River (once again about the problem of the genesis early Ananino Culture of Corded Ceramics – ACCC)

open access: yesПоволжская археология, 2019
The paper deals with interpretation of the results of the comparative statistical analysis of pottery from the late Bronze Age settlements in the lower reaches of the Belaya river – Kakry-Kul, Birsk, Udelny-Duvaney.
Ivanov Vladimir A. , Chichko Tatiana V.
doaj   +1 more source

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