Results 21 to 30 of about 3,760 (259)

The last Pleistocene glaciations phylogeography episode of Phaneroptera falcata (Poda, 1761) (Orthoptera: Tettigoniidae) in the Volga River basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment [PDF]

open access: yesActa Biologica Sibirica, 2020
This study is to research the phylogeography of Phaneroptera falcata (Poda, 1761) in the Volga river basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment at the last Pleistocene glaciation episode. The studied location is the Volga
Inessa O. Karmazina   +6 more
doaj   +3 more sources

NEW REVIEW OF POACEAE OF THE MIDDLE VOLGA REGION [PDF]

open access: yesEkosistemy, 2020
Grasses one of the largest families of higher plants, including about 12000 species from 950 genera. The paper presents up-to-date information about the taxonomic composition, geographical distribution and habitat conditions of cereals in the South of the Middle Volga region (within the Penza, Samara and Ulyanovsk regions).
S. V. Saksonov   +2 more
openaire   +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

Regional Center Landscape Evolution in the Middle Volga Region [PDF]

open access: yesSamara Journal of Science, 2020
The paper discusses the development of Samaras urban space in the focus of the planning structure of the city and its territorial growth. The stages of development of the urban landscape from the moment of the citys foundation to the beginning of the XX century are studied.
openaire   +1 more source

Middle Volga Abashevo Culture and Bell Beaker Culture: family portrait sketches

open access: yesАрхеология евразийских степей, 2022
The paper considers an analysis of the formation mechanisms of the Middle Volga Abashevo culture. It was formed in conditions of a sharp aridization of the period 2200 CalBC. Its occurrence was rapid and abrupt.
Roman A. Mimokhod
doaj   +1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

Fish occurrence in the middle Volga and upper Don regions (Russia) [PDF]

open access: yesBiodiversity Data Journal, 2020
In ichthyological publications from both Russia as a whole, and from the study region, lack of data indicating the actual results of observations in a specific place all result in publication of a generalised analysis. Although our publications contain such data, they are, however, not convenient for users performing global analysis.
Artaev,Oleg   +8 more
openaire   +4 more sources

Monitoring of the phytosanitary efficiency of pre-sowing spring wheat seed treatment

open access: yesBIO Web of Conferences, 2020
For the forest-steppe of the Middle Volga region, efficiency of preparations for presowing treatment of seeds as regulators of the phytosanitary state of agrocenoses and spring wheat productivity for different regionalized varieties were assessed.
Pertseva Elena V.   +4 more
doaj   +1 more source

Regional “sociology without sociologists” in the Middle Volga Region in the Soviet Period

open access: yesDiscourse, 2022
Introduction. The article analyzes circumstances of the emergence of regional sociology in the Soviet era. To describe this phenomenon, the author applies the concept of “sociology without sociology”. This idiom means scientific and sociological activity without the participation of the professional sociological community and describes this ...
openaire   +2 more sources

Appearance and chronology of Textile ceramics in the Middle and Upper Volga region: critical comparison of conventional 14C-, AMS- and typological chronologies

open access: yesПоволжская археология, 2015
The article offers a comparison of three different methods of chronology construction – conventional 14C (radiocarbon) dating, AMS (accelerator mass-spectrometry) dating and the so called typological chronology – to date the textile ceramics of the ...
Lavento Mika T., Patrushev Valery S.
doaj   +1 more source

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