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  1. Article: Changes in the groundwater levels and regimes in the taiga zone of Western Siberia as a result of global warming

    Savichev, Oleg / Moiseeva, Julia / Guseva, Natalia

    Theoretical and applied climatology. 2022 Feb., v. 147, no. 3-4

    2022  

    Abstract: Groundwater accounts for 30% of the world drinking water resources and is rarely taken into account in climate assessments. Climate change affects groundwater levels and regimes, but there is very little specific research on the future impacts of climate ...

    Abstract Groundwater accounts for 30% of the world drinking water resources and is rarely taken into account in climate assessments. Climate change affects groundwater levels and regimes, but there is very little specific research on the future impacts of climate change on groundwater. This study examines data from 15 groundwater wells of various ages for the period from 1965 to 2015. To obtain reliable data, an analysis was made of the groundwater level changes in the upper hydrodynamic zone, which is not disturbed by anthropogenic activity. A statistically significant increase in the average annual groundwater levels in the study area was observed, in agreement with data indicating an increase in groundwater runoff in the winter season for large and medium rivers in the region. To explain the revealed changes in the groundwater levels, an analysis of the characteristic climatic changes (air temperature and amount of precipitation) and the groundwater runoff was performed. In winter, the unfrozen moisture content in the soil has increased; accordingly, groundwater recharge and groundwater levels have increased. Meanwhile, in summer, an increase in evaporation from the drainage basin has occurred as a result of the increasing air temperature. To some extent, this compensates for the changes in the annual runoff and groundwater levels that are hydraulically connected to the rivers.
    Keywords Siberia ; air temperature ; anthropogenic activities ; climate ; climatology ; evaporation ; groundwater ; groundwater recharge ; hydrodynamics ; runoff ; soil ; summer ; taiga ; water content ; water table ; watersheds ; winter
    Language English
    Dates of publication 2022-02
    Size p. 1121-1131.
    Publishing place Springer Vienna
    Document type Article
    ZDB-ID 1463177-5
    ISSN 1434-4483 ; 0177-798X
    ISSN (online) 1434-4483
    ISSN 0177-798X
    DOI 10.1007/s00704-021-03879-4
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Distribution of dissolved trace elements in the Laptev Sea affected by the Lena River discharge.

    Moiseeva, Yuliya / Purgina, Darya / Pipko, Irina / Guseva, Natalia / Gershelis, Elena / Khvaschevskaya, Albina / Pugach, Svetlana / Yakushev, Evgeniy / Semiletov, Igor

    Marine pollution bulletin

    2024  Volume 202, Page(s) 116397

    Abstract: This study presents new data on concentration of dissolved trace elements (DTE) in the Lena River-Laptev Sea mixing zone. Mean concentrations of some dissolved heavy metals in the mixing zone of fresh waters of the Lena River and sea waters of the Laptev ...

    Abstract This study presents new data on concentration of dissolved trace elements (DTE) in the Lena River-Laptev Sea mixing zone. Mean concentrations of some dissolved heavy metals in the mixing zone of fresh waters of the Lena River and sea waters of the Laptev Sea on the middle shelf and on the outer shelves are: 0.7± 0.05 μМ and 0.5 ± 0.04 μМ for Fe, 0.06 ± 0.01 μМ and 0.07 ± 0.01 μМ for Ni, 0.01 ± 0.003 μМ and 0.003 ± 0.002 μМ for Zn, 59.2 ± 7.4 nМ and 73.4 ± 12.8 nМ for Cu, respectively. Two major groups of DTE distribution were revealed according to their spatial behavior. The Li, V, As, Rb, Sr, Mo, U concentrations increase towards the outer shelf with increasing salinity. In contrast, mean concentrations of Al, Ti, Mn, Fe, Co decrease with increasing distance from the coast. The identified transport of freshwaters to a distance of 400 km is reflected in the distribution of DTE, which suggests that these elements are able to reach to the Central Arctic Ocean.
    Language English
    Publishing date 2024-04-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2024.116397
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: The Origin of the Natural Water Chemical Composition in the Permafrost Region of the Eastern Slope of the Polar Urals

    Guseva, Natalia

    Water. 2016 Dec. 14, v. 8, no. 12

    2016  

    Abstract: This article presents the results of the study of water chemical composition and formation processes in the eastern slope of the Polar Ural where permafrost is widely spread. To date, this region has not been studied in detail. However, it is very ... ...

    Abstract This article presents the results of the study of water chemical composition and formation processes in the eastern slope of the Polar Ural where permafrost is widely spread. To date, this region has not been studied in detail. However, it is very important to have information on the natural waters in this region because they play a significant role in all geochemical processes, including climate formation. For this study, 107 water samples were collected from lakes, rivers and active layer waters. The studied waters are ultrafresh; total dissolved solids vary from 14 to 438 mg/L. pH ranges from 3.5 to 9.0. The chemical type of the studied waters is mostly HCO<inf>3</inf>–Ca–Mg. The geochemical environment of the studied waters contributes to the accumulation of such trace elements as Fe, Mn, Al, Ni, Au, Co, Li, Sc, Ti, Cr, Sr, Nb, Mo, Cs, La, Eu, Lu, Hg, and Se. The chemical composition peculiarities of active layer waters, rivers, lakes and waters of stone pits and exploration trenches and the description of their chemical composition formation processes are given in the present study. The water–rock interaction is a dominant process of water chemical composition formation in the studied region. The obtained results have both potential theoretical and practical applications.
    Keywords aluminum ; cesium ; chromium ; climate ; cobalt ; geochemistry ; gold ; iron ; lakes ; magnesium ; manganese ; mercury ; molybdenum ; nickel ; permafrost ; pH ; rivers ; strontium ; topographic slope ; total dissolved solids
    Language English
    Dates of publication 2016-1214
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w8120594
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Innovating cultural synergy in French-Russian collaboration

    Guseva, Natalia I

    Creativity, innovation, and entrepreneurship across cultures , p. 121-134

    building a puzzle from cultural diversity

    2016  , Page(s) 121–134

    Author's details Natalia I. Guseva
    Language English
    Publisher Springer
    Publishing place New York
    Document type Article
    ISBN 1-4939-3260-8 ; 978-1-4939-3260-3
    Database ECONomics Information System

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  5. Article ; Online: Hydrogeochemistry of thermal waters of the Baikal Rift, South-Eastern Tuva, Russia

    Shestakova Anastasia / Guseva Natalia / Kopylova Yulia / Khvaschevskaya Albina / Arakchaa Kara-Kys

    E3S Web of Conferences, Vol 98, p

    2019  Volume 07029

    Abstract: The spa resort of the Ush-Beldir is located in the south-eastern part of the Tuva region, Russia in the zone of influence of the Baikal rift. The Ush-Beldir territory has about 10 thermal springs and 4 exploration wells used for treatment and prevention ... ...

    Abstract The spa resort of the Ush-Beldir is located in the south-eastern part of the Tuva region, Russia in the zone of influence of the Baikal rift. The Ush-Beldir territory has about 10 thermal springs and 4 exploration wells used for treatment and prevention of diseases. Hydrological and hydrochemical features of the thermal groundwaters are considered. The studied waters are thermal (T=50–83°C), alkaline (pH=9.3–10), low mineralized (TDS<370 mg/L) Na–НСО3 waters with a high content of SiO2 (up to 125 mg/L) and F (up to 14 mg/L). The correlation of F- with SiO2, НСО3–, Cl-, Na+ as well as the calculation of saturation indices of minerals, allows one plausible solute source for these thermal waters, viz. the dissolution of rock-forming aluminosilicates, most likely plagioclase, gabbro and/or amphiboles in shales.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2019-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Geothermometry and Isotope Geochemistry of CO<sub>2</sub>-Rich Thermal Waters in Choygan, East Tuva, Russia

    Shestakova, Anastasia / Guseva, Natalia / Khvaschevskaya, Albina / Kopylova, Yulia / Polya, David A / Tokarev, Igor

    Water. 2018 June 04, v. 10, no. 6

    2018  

    Abstract: The Choygan area of southern Siberia, Russia hosts a variety of CO ... 2 ... -rich thermal mineral and other waters emerging from springs at temperatures between 7 °C and 39 °C. Chemical analyses of the spring waters (n = 33) were carried out to ... ...

    Abstract The Choygan area of southern Siberia, Russia hosts a variety of CO<inf>2</inf>-rich thermal mineral and other waters emerging from springs at temperatures between 7 °C and 39 °C. Chemical analyses of the spring waters (n = 33) were carried out to characterise the waters and determine their origin. A continuum of compositions was observed between relatively lower temperature (7 °C) HCO<inf>3</inf>-Ca-Na dominated waters with relatively low amount of total dissolved solids (TDS) and high Eh, and higher temperature (39 °C) HCO<inf>3</inf>-Na-Ca dominated waters with higher TDS and lower Eh—this reflects largely conservative mixing of these components between near surface low temperature, oxidising groundwaters and higher temperature, more reducing thermal waters derived from a deeper geothermal reservoir. Stable isotopic data are consistent with all the water ultimately being derived from meteoric water that has undergone varying degrees of isotopic fractionation following evaporation. The inferred δ18O and δ2H isotopic composition of the unfractionationed meteoric waters is lighter than that expected that of mean annual local precipitation, which together with a strong negative correlation between δ18O and the elevation of the sampled discharging springs, suggests recharge at higher elevations (1600 m to 3000 m; average 2600 m). Reservoir temperature, calculated using geothermometers and an analysis of saturation indices of plausible reservoir minerals, ranged from 70 °C to 100 °C at an inferred depth of 2 to 3 km. Not all chemical components were found to follow conservative mixing behaviour. In particular, (i) the CO<inf>2</inf> contents of the waters were highly variable, suggesting either varying degrees of degassing and/or near discharge admixture with air, and (ii) SO<inf>4</inf> concentrations in the lower temperature thermal CO<inf>2</inf>-rich waters were highly variable, suggesting a role of near surface oxidation processes, for example of pyrite, in modifying the concentration of redox sensitive components. Limited δ13C data are consistent with the CO<inf>2</inf> predominately being derived from dissolution of metamorphic/igneous carbonate minerals in the reservoir. Based on geological conditions, isotope and chemical data, a conceptual circulation model of the Choygan hydrothermal system is proposed.
    Keywords air ; altitude ; calcium ; carbon ; carbon dioxide ; carbonate minerals ; chemical analysis ; deaeration ; evaporation ; geochemistry ; groundwater ; hosts ; isotope fractionation ; mixing ; models ; oxidation ; oxygen ; pyrite ; sodium ; stable isotopes ; temperature ; total dissolved solids ; Siberia
    Language English
    Dates of publication 2018-0604
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w10060729
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Silicon in ultrafresh groundwater

    Guseva Natalia V. / Kopylova Yuliya G. / Vorobeva Daria A / Khvashchevskaya Albina A. / Evtyugina Zinaida A.

    E3S Web of Conferences, Vol 98, p

    a case study of the Imandra Lake catchment, The Kola Peninsula

    2019  Volume 01018

    Abstract: The ultrafresh groundwater (with TDS values less than 200 mg/L) of the Imandra Lake catchment, Kola Peninsula, is from an intensive water exchange zone, where the water has a short period of contact with the rock. Therefore, the considered water is at ... ...

    Abstract The ultrafresh groundwater (with TDS values less than 200 mg/L) of the Imandra Lake catchment, Kola Peninsula, is from an intensive water exchange zone, where the water has a short period of contact with the rock. Therefore, the considered water is at the initial stages of the water–rock interaction. The water is saturated with respect to oxides and hydroxides of aluminium and iron. In the groundwater of the Imandra Lake catchment area, the silicon concentrations significantly exceed the concentrations of magnesium and especially potassium. Nevertheless, water is undersaturated with respect to with respect to silicon oxides. The shown enrichment of water with cations is explained by time of water-rock interaction.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2019-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Sources and behaviour of nitrogen compounds in the shallow groundwater of agricultural areas (Poyang Lake basin, China).

    Soldatova, Evgeniya / Guseva, Natalia / Sun, Zhanxue / Bychinsky, Valeriy / Boeckx, Pascal / Gao, Bai

    Journal of contaminant hydrology

    2017  Volume 202, Page(s) 59–69

    Abstract: Nitrogen contamination of natural water is a typical problem for various territories throughout the world. One of the regions exposed to nitrogen pollution is located in the Poyang Lake basin. As a result of agricultural activity and dense population, ... ...

    Abstract Nitrogen contamination of natural water is a typical problem for various territories throughout the world. One of the regions exposed to nitrogen pollution is located in the Poyang Lake basin. As a result of agricultural activity and dense population, the shallow groundwater of this area is characterised by a high concentration of nitrogen compounds, primarily NO
    MeSH term(s) Agriculture ; China ; Computer Simulation ; Environment ; Environmental Monitoring ; Groundwater/analysis ; Groundwater/chemistry ; Lakes ; Manure ; Nitrates/analysis ; Nitrification ; Nitrogen/analysis ; Nitrogen Isotopes/analysis ; Sewage ; Water Pollutants, Chemical/analysis ; Water Pollutants, Chemical/chemistry ; Water Supply
    Chemical Substances Manure ; Nitrates ; Nitrogen Isotopes ; Sewage ; Water Pollutants, Chemical ; Nitrogen (N762921K75)
    Language English
    Publishing date 2017-07
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1494766-3
    ISSN 1873-6009 ; 0169-7722
    ISSN (online) 1873-6009
    ISSN 0169-7722
    DOI 10.1016/j.jconhyd.2017.05.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Antisense noncoding RNA promoter regulates the timing of de novo methylation of an imprinting control region.

    Guseva, Natalia / Mondal, Tanmoy / Kanduri, Chandrasekhar

    Developmental biology

    2012  Volume 361, Issue 2, Page(s) 403–411

    Abstract: Epigenetic marks at cis acting imprinting control regions (ICRs) regulate parent of origin-specific expression of multiple genes in imprinted gene clusters. Epigenetic marks are acquired during gametogenesis and maintained faithfully thereafter. However, ...

    Abstract Epigenetic marks at cis acting imprinting control regions (ICRs) regulate parent of origin-specific expression of multiple genes in imprinted gene clusters. Epigenetic marks are acquired during gametogenesis and maintained faithfully thereafter. However, the mechanism by which differential epigenetic marks are established and maintained at ICRs is currently unclear. By using Kcnq1 ICR as a model system, we have investigated the functional role of genetic signatures in the acquisition and maintenance of epigenetic marks. Kcnq1 ICR is methylated on the maternal chromosome but remains unmethylated on the paternal chromosome. Here, we show that a paternal allele of Kcnq1 ICR lacking the Kcnq1ot1 promoter remains unmethylated during spermatogenesis; however, it becomes methylated specifically during pre-implantation development. Analysis of the chromatin structure at the paternal ICR in spermatogenic cells and in E13.5 embryonic tissues revealed that the ICRs of both wild type and mutant mice are enriched with H3K4me2 in spermatiogenic cells of the testicular compartment, but the mutant ICR lost H3K4me2 specifically in epididymal sperm and an increase in repressive marks was observed in embryonic tissues. Interestingly, we also detected a decrease in nucleosomal histone levels at the mutant ICR in comparison to the wild-type ICR in epididymal sperm. Taken together, these observations suggest that the Kcnq1ot1 promoter plays a critical role in establishing an epigenetic memory in the male germline by ensuring that the paternal allele remains in an unmethylated state during pre-implantation development.
    MeSH term(s) Animals ; CpG Islands/genetics ; DNA Methylation/genetics ; Embryo, Mammalian/metabolism ; Embryonic Development/genetics ; Female ; Genomic Imprinting/genetics ; Histones/metabolism ; KCNQ1 Potassium Channel/genetics ; Lysine/metabolism ; Male ; Mice ; Mutation/genetics ; Nucleosomes/metabolism ; Placenta/metabolism ; Pregnancy ; Promoter Regions, Genetic ; Protein Binding ; Protein Processing, Post-Translational ; RNA, Antisense/genetics ; RNA, Antisense/metabolism ; RNA, Untranslated/genetics ; RNA, Untranslated/metabolism ; Sequence Deletion/genetics ; Spermatogenesis/genetics ; Testis/cytology ; Testis/metabolism ; Time Factors ; Trans-Activators/metabolism
    Chemical Substances Cxxc1 protein, mouse ; Histones ; KCNQ1 Potassium Channel ; Kcnq1 protein, mouse ; Nucleosomes ; RNA, Antisense ; RNA, Untranslated ; Trans-Activators ; Lysine (K3Z4F929H6)
    Language English
    Publishing date 2012-01-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1114-9
    ISSN 1095-564X ; 0012-1606
    ISSN (online) 1095-564X
    ISSN 0012-1606
    DOI 10.1016/j.ydbio.2011.11.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Phylogeny and Classification of

    Kutyrev, Vladimir V / Eroshenko, Galina A / Motin, Vladimir L / Nosov, Nikita Y / Krasnov, Jaroslav M / Kukleva, Lyubov M / Nikiforov, Konstantin A / Al'khova, Zhanna V / Oglodin, Eugene G / Guseva, Natalia P

    Frontiers in microbiology

    2018  Volume 9, Page(s) 1106

    Abstract: The established phylogeny of the etiological agent of plague, ...

    Abstract The established phylogeny of the etiological agent of plague,
    Language English
    Publishing date 2018-05-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2018.01106
    Database MEDical Literature Analysis and Retrieval System OnLINE

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