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俄罗斯-蒙古地学断面地壳模型的地质-地球物理资料综合研究

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地学前缘 2021年第5期28卷 260-282页

作者： Evgeny Kh.TURUTANOv Evgeny v.SKLYAROv valentina v.mordvinova Anatoly M.MAZUKABZOv viktor S.KANAYKIN Institute of the Earth's Crust Siberian Branch of the Russian Academy of Science Lermontov ave.128Irkutsk 664033Russia Irkutsk National Research Technical University Lermontov ave.83Irkutsk 664074Russia

地学断面是指地壳的垂直剖面,主要通过对地质和地球物理资料的综合分析来揭示构造带的性质及其空间关系。横断面的研究所采用的数据基本包括100 km宽区域地质图、上地壳的地质剖面图、重磁图(沿横断面的重磁剖面图)以及地壳的地震波速... 详细信息

地学断面是指地壳的垂直剖面,主要通过对地质和地球物理资料的综合分析来揭示构造带的性质及其空间关系。横断面的研究所采用的数据基本包括100 km宽区域地质图、上地壳的地质剖面图、重磁图(沿横断面的重磁剖面图)以及地壳的地震波速度、密度和其他地球物理属性的剖面图。这些数据被用于构建综合的数据剖面图(结果图),以展示各种地球动力学条件下(裂谷、海洋、碰撞带、造山盆地、大陆地台和岩浆弧,包括安第斯岛弧、活动大陆边缘、海沟、弧前和弧后盆地)的特定的岩石组构。本项目的研究目标是根据研究区现存的地质和地球物理数据的综合解释,统一图例,建立研究区深部剖面,以确定地体的空间关系及其在板块构造方面的地球动力学性质。前人已分别对东西伯利亚南部和蒙古境内的多个地体进行了构造划分,并对它们的地球动力学性质和时空关系进行了分析。研究结果显示该系列地体为早古生代、中晚古生代和晚古生代—早中生代的岛弧和微大陆。此外,研究还识别出了中-晚古生代和晚古生代-早中生代安第斯型活动大陆边缘、晚古生代-早中生代被动大陆边缘和早白垩世裂谷。与岛弧和安第斯型活动大陆边缘相关的岩体被推覆至相邻大陆和微陆块上,部分推覆宽度可达150 km。目前已开展泥盆纪到晚侏罗世时期蒙古鄂霍次克海地区的古地球动力学重建。“非地槽”型花岗岩类岩浆作用在板块构造方面找到了直接且合理的解释,其中泥盆纪-石炭纪和二叠纪-三叠纪岩浆作用区域对应于安第斯型活动大陆边缘,中—晚侏罗世岩浆作用则与西伯利亚/蒙古中国大陆板块碰撞有关。碰撞岩浆作用中亚碱性(地幔)元素的存在及其所在的构造区域在很大程度可以说明蒙古鄂霍次克海闭合后,巨厚大陆岩石圈下曾经发生过持续的大洋裂谷活动(地幔热点)。在早白垩世时期,大陆裂谷活动影响到了同一时期正在发生的大陆汇聚作用。西伯利亚南部边界大部分具有安第斯型活动大陆边缘性质,这也是蒙古—鄂霍次克缝合线沿线蛇绿岩数量较少的原因。因为当汇聚大陆一个具有安第斯类型的活动边缘,而另一个具有被动边缘时,前者的大陆地壳会最终逆冲到后者之上,并因此破坏掉先前出露的蛇绿杂岩体。部分被破坏的蛇绿岩块是俯冲带保留下来的海山残余,其可能成为增生俯冲楔体的混沌复合体的一部分。然而,由于快速俯冲作用,这种楔形体在晚二叠世—早侏罗世的积累并不是西伯利亚活动边缘的典型特征。沿地学断面综合的地质和地球物理资料分析表明,亚洲大陆是在显生宙时期由部分前寒武纪微陆块构造拼贴而成的。前寒武纪地块间存在不同宽度的已变形且剥蚀强烈的显生宙火山弧,它们也被归类为特定地体。

关键词：地质地球物理地壳横断面

ENSO Index variations and Links with Solar and volcanic Activity

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Natural Science 2024年第4期16卷 25-44页

作者： valentina v. Zharkova Irina vasilieva Department of MPEE Faculty of Engineering and Environment University of Northumbria Newcastle upon Tyne NE UK ZvS Research Enterprise Ltd. London UK Department of Solar Physics Main Astronomical Observatory Kyiv Ukraine

In this paper, we investigated the Oceanic Niño Index (ONI), for simplicity called in this paper an El Nino Southern Oscillation (ENSO) index in 1950-2023 by applying the wavelet spectral transform and the IBM SPSS correlations analysis. ONI follows the three months’ current measurements of the average temperature of the sea surface in the East-Central tropical part of the Pacific Ocean nearby the international line of the date change over the average sea surface temperature over the past 30 years. The ENSO index is found to have a strong (>87%) correlation with the Global Land-Ocean Temperature (GLOT). The scatter plots of the ENSO-GLOT correlation with the linear and cubic fits have shown that the ENSO index is better fit by the cubic polynomial increasing proportionally to a cubic power of the GLOT variations. The wavelet analysis allowed us to detect the two key periods in the ENSO (ONI) index: 4 - 5 years and 12 years. The smaller period of 4.5 years can be linked to the motion of tectonic plates while the larger period of 12 years is shown to have a noticeable correlation of 25% with frequencies of the underwater (submarine) volcanic eruptions in the areas with ENSO occurrences. Not withholding any local terrestrial factors considered to contribute to the ENSO occurrences, we investigated the possibility of the volcanic eruptions causing ENSO to be also induced by the tidal forces of Jupiter and Sun showing the correlation of the underwater volcanic eruption frequency with the Jupiter-Earth distances to be 12% and with the Sun-Earth distances, induced by the solar inertial motion, in January, when the Earth is turned to the Sun with the southern hemisphere where the ENSO occurs, to become 15%. Hence, the underwater volcanic eruptions induced by tidal forces of Jupiter and Sun can be the essential additional factors imposing this 12 year period of the ENSO (ONI) index variations.

关键词： Sun: Magnetic Field Sun: Solar Activity Sun: Inertial Motion Earth: Temperature Earth: Sea Level Earth: Ice Area

A multi-platform analysis of human gingival crevicular fluid reveals ferroptosis as a relevant regulated cell death mechanism during the clinical progression of periodontitis

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International Journal of Oral Science 2024年第2期16卷 265-279页

作者： Alfredo Torres M.Angélica Michea Ákos végvári Marion Arce valentina Pérez Marcela Alcota Alicia Morales Rolando vernal Mauricio Budini Roman A.Zubarev Fermín E.González Laboratory of Experimental Immunology&Cancer Faculty of DentistryUniversity of ChileSantiagoChile Department of Conservative Dentistry Faculty of DentistryUniversity of ChileSantiagoChile Division of Chemistry I Department of Medical Biochemistry and BiophysicsKarolinska InstitutetStockholmSweden Periodontal Biology Laboratory Faculty of DentistryUniversidad de ChileSantiagoChile Laboratory of Cellular and Molecular Pathology Institute for Research in Dental SciencesFaculty of DentistryUniversity of ChileSantiagoChile

Ferroptosis is implicated in the pathogenesis of numerous chronic-inflammatory diseases,yet its association with progressive periodontitis remains *** investigate the involvement and significance of ferroptosis in periodontitis progression,we assessed sixteen periodontitis-diagnosed *** progression was clinically monitored over twelve weeks via weekly clinical evaluations and gingival crevicular fluid(GCF)collection was performed for further *** metrics,proteomic data,in silico methods,and bioinformatics tools were combined to identify protein profiles linked to periodontitis progression and to explore their potential connection with *** western blot analyses validated key ***,a single-cell RNA sequencing(scRNA-seq)dataset(GSE164241)for gingival tissues was analyzed to elucidate cellular dynamics during periodontitis *** progression was identified as occurring at a faster rate than traditionally *** samples from progressing and non-progressing periodontal sites showed quantitative and qualitatively distinct proteomic *** addition,specific biological processes and molecular functions during progressive periodontitis were revealed and a set of hub proteins,including SNCA,CA1,HBB,SLC4A1,and ANK1 was strongly associated with the clinical progression status of ***,we found specific proteins-drivers or suppressors-associated with ferroptosis(SNCA,FTH1,HSPB1,CD44,and GCLC),revealing the co-occurrence of this specific type of regulated cell death during the clinical progression of ***,the integration of quantitative proteomic data with scRNA-seq analysis suggested the susceptibility of fibroblasts to *** analyses reveal proteins and processes linked to ferroptosis for the first time in periodontal patients,which offer new insights into the molecular mechanisms of progressive periodontal *** findings may le

关键词： finding progression faster

Immune Profile of COvID-19 Survivors and Contacts During 9 Months:A Cohort Study

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Infectious Diseases & Immunity 2023年第4期3卷 163-175页

作者： valentina v.Tatarnikova Natalya O.Kiseleva valentina I.Dubrovina vladimir A.vishnyakov Darya D.Bryukhova Anna B.Pyatidesyatnikova Konstantin M.Korytov Munko B.Sharakshanov Sergey v.Balakhonov Irkutsk Antiplague Research Institute of Siberia and Far East of Rospotrebnadzor Irkutsk 664047Russia

Background:Severe acute respiratory syndrome coronavirus 2(SARS-Cov-2)causes a multi-organ systemic damage that can lead to long-term *** is known about the possible long-term effects of COvID-19 on circulating leukocyte kinetics and functional T-cell activity after *** investigate immune system changes,we designed a cohort ***:volunteer screening and sample collectionwere performed at the Irkutsk Research Anti-Plague Institute of ***-four volunteers who have had COvID-19(recovered volunteers(Rvs))betweenMay 2020 andMay 2021,33 volunteers who had been in contact with COvID-19 patients(contact volunteers(Cvs))within the family setting but had not become ill,and 47 healthy volunteers(Hvs)participated in the *** performed immunophenotyping of peripheral blood cells using flow *** was tested for SARS-Cov-2 anti-nucleocapsid immunoglobulin G antibodies by enzyme-linked immunosorbent assay(Ab(+),people with specific anti-N antibodies to SARS-Cov-2;Ab(−),people without specific antibodies).Results:There were no serious disturbances in the internal environment of the body in Rvs and *** the evaluation of the general state of the immune system,the most informative indicator was the index of the ratio of neutrophils to bloodmonocytes–decreased on the 1st terms of observation(1 and 3 months post-symptom onset(PSO)/post-contact onset(PCO)),on average,1.3 times compared with Hvs(8.6%(7.5%–10.5%),Pvered by the 6th month of *** of the cells responsible for the development of the adaptive immune response was noted only in Rvs–increased B-lymphocyte content(Hvs,9.1%(6.4%–10.2%))and immunoregulatory index ratio(Hvs,1.6%(1.2%–2.1%))due to redistribution of T-helper and cytotoxic T cells throughout the follow-up period by an average of 1.2-fold compared with Hvs(Pver,Cvs with specific antibodies to SARS-Cov-2 N-protein also had an increased proportion of CD3−CD19+c

关键词： COvID-19 Flow cytometry Immunity Specific IgG T cells B cells

Terrestrial Temperature, Sea Levels and Ice Area Links with Solar Activity and Solar Orbital Motion

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Natural Science 2023年第9期15卷 233-255页

作者： valentina v. Zharkova Irina vasilieva Department of MPEE Faculty of Engineering and Environment University of Northumbria Newcastle upon Tyne UK ZvS Research Enterprise Ltd. London UK Department of Solar Physics Main Astronomical Observatory Kyiv Ukraine

This paper explores the links between terrestrial temperature, sea levels and ice areas in both hemispheres with solar activity indices expressed through averaged sunspot numbers together with the summary curve of eigenvectors of the solar background magnetic field (SBMF) and with changes of Sun-Earth distances caused by solar inertial motion resulting from the gravitation of large planets in the solar system. Using the wavelet analysis of the GLB and HadCRUTS datasets two periods: 21.4 and 36 years in GLB, set and the period of about 19.6 years in the HadCRUTS are discovered. The 21.4-year period is associated with variations in solar activity defined by the summary curve of the largest eigenvectors of the SBMF. A dominant 21.4-year period is also reported in the variations of the sea level, which is linked with the period of 21.4 years detected in the GLB temperature and the summary curve of the SBMF variations. The wavelet analysis of ice and snow areas shows that in the Southern hemisphere, it does not show any links to solar activity periods while in the Northern hemisphere, the ice area reveals a period of 10.7 years equal to a usual solar activity cycle. The TSI in March-August of every year is found to grow with every year following closely the temperature curve, because the Sun moves closer to the Earth orbit owing to gravitation of large planets (solar inertial motion, SIM), while the variations of solar radiation during a whole year have more steady distribution without a sharp TSI increase during the last two centuries. The additional TSI contribution caused by SIM is likely to secure the additional energy input and exchange between the ocean and atmosphere.

关键词： Sun: Magnetic Field Sun: Solar Activity Sun: Inertial Motion Earth: Temperature Earth: Sea Level Earth: Ice Area

Seasonal Dynamics of Male and Female Reproductive Systems in the Siberian Salamander, Salamandrella keyserlingii (Caudata, Hynobiidae)

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Asian Herpetological Research 2015年第3期6卷 169-183页

作者： vadim v.YARTSEv valentina N.KURANOvA Department of vertebrate Zoology and Ecology Institute of BiologyTomsk State University

It is not well known how low temperatures, like a subarctic steppe–tundra climate, influence reproductive traits of ectothermic vertebrates. To begin answering this question, we studied male and female reproductive systems of Salamandrella keyserlingii inhabiting a Tomsk population（southeast of Western Siberia）, Russia, in ecological and physiological terms. In males, before spermiation, the testicular size and weight in late April–early May were greatest of all. Spermiation occurred during breeding immigration in spring when mean air temperature was above 10°С, and at the same time rain fell. After spermiation, the testicular size and weight decreased sharply, and the diameter of the vasa deferentia increased. ＂Spawning＂（i.e., simultaneous extrusion of sperm and oviposition） occurred from late April to late May, and this duration fluctuated in temperature and humidity. The testicular size and weight increased in summer. Sperm mass was detected in the testes by the smear method in April–September, except in June when single fragmented unrealized sperm was detected and in July when spermatids were detected. In females, ovarian weight was greatest in spring before ovulation. From late June, vitellogenesis began in ovarian follicles, in which mint green yolks accumulated. Melanin deposited in the surface of the ovary from July when oviducts were hypertrophying. In contrast, some large-sized females did not show any sexual maturity shortly before hibernation（although these females may be subadults）. These results suggest that low temperatures in Siberia induce early timing of gamete maturation in females, but the females＇ reproductive cycle might also be biennial. A reproductive cycle in males was annual with the completion of the gamete maturation process in August.

关键词： annual reproductive cycle biennial reproductive cycle breeding immigration gamete maturation subarctic climate

Genotoxic Potential of Copper Oxide Nanoparticles in the Bivalve Mollusk Mytilus trossulus

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Journal of Ocean University of China 2017年第2期16卷 339-345页

作者： victor P.Chelomin valentina v.Slobodskova Maksim Zakhartsev Sergey Kukla Laboratory of Marine Ecotoxicology V.I.Ilichev Pacific Oceanological Institute of the Far East Branch of Russian Academy of SciencesVladivostok 600041Russia The Far Eastern Federal University School of Natural SciencesVladivostok 600091Russia University of Hohenheim Stuttgart 70599Germany

Copper oxide nanoparticles(CuO-NPs) are among the most widely used metal oxide nanoparticles,which increases the chance of their being released into the marine *** the applications of these particles have increased in recent years,their potential impact on the health of marine biota has also ***,the toxicological effects of these NPs in the marine environment are poorly *** the present study,the DNA damaging potential of CuO-NPs in the marine eastern mussel Mytilus trossulus was evaluated and compared to that of dissolved copper *** was assessed by the single cell gel electrophoresis(comet) assay in mussel gill and digestive gland *** results showed that copper in both forms(CuO-NPs and dissolved copper) was accumulated to different extents in mussel *** mussel exposed to the dissolved copper attained higher concentrations of copper in the gills than in the digestive *** contrast to these results,it was found that CuO-NPs could induce much higher copper accumulation in the digestive gland than in the gills.A clear and statistically significant increase in DNA damage was found in both tissues of the Cu-exposed group compared to the control *** results indicated that the CuO-NP exposure produced remarkable effects and increased DNA damage significantly in mussel gill cells *** should be noted that the digestive gland cells were prone to accumulation following CuO-NPs when compared to the gill cells,while the gill cells were more sensitive to the genotoxic effects of *** results also suggested the need for a complete risk assessment of engineered particles before its arrival in the consumer market.

关键词： CuO nanoparticles copper accumulation DNA damage genotoxicity Mytilus trossulus

Contribution of the Earth's gravitational potential to variations in orbital motion of short-period comets

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Research in Astronomy and Astrophysics 2016年第4期16卷 1-6页

作者： valentina M.Chepurova Nelli v.Kulikova Elena N.Petrovskaya Sternberg Astronomical Institute Lomonosov Moscow State University Department of Computer Systems Networks and Technologies National Research Nuclear University Moscow Engineering Physics Institute Institute for Nuclear Power Engineering

We present simulation results on evolution development of orbital motion of short-period comets with the revolution period not exceeding 6-7 years, namely comets 21P/Giacobini-Zinner, 26P/Grigg- Skjellerup and 7P/Pons-Winnecke. The calculations cover the range from the date of the object＇s discovery to 2100. variations in the objects＇ orbital elements under the action of gravity disturbances, taking Earth＇s gravitational potential into account when the small body approaches, are analyzed. Corrected dates of peri- helion passages can be used for scheduling observations.

关键词： comets: individual (21P/Giacobini-Zinner 26P/Grigg-Skjellerup 7P/Pons-Winnecke)-- me-teorites meteors meteoroids

Periodicities in Solar Activity, Solar Radiation and Their Links with Terrestrial Environment

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Natural Science 2023年第3期15卷 111-147页

作者： valentina v. Zharkova Irina vasilieva Simon J. Shepherd Elena Popova Department of MPEE University of Northumbria Newcastle upon Tyne UK ZvS Research Enterprise Ltd. London UK Department of Solar Physics Main Astronomical Observatory Kyiv Ukraine PRIMAL Research Group Sorbonne Universite Paris France Centro de Investigación en Astronomía Universidad Bernardo O’Higgins Santiago Chile

Solar magnetic activity is expressed via variations of sunspots and active regions varying on different timescales. The most accepted is an 11-year period supposedly induced by the electromagnetic solar dynamo mechanism. There are also some shorter or longer timescales detected: the biennial cycle (2 - 2.7 years), Gleisberg cycle (80 - 100 years), and Hallstatt’s cycle (2100 - 2300 years). Recently, using Principal Component Analysis (PCA) of the observed solar background magnetic field (SBMF), another period of 330 - 380 years, or Grand Solar Cycle (GSC), was derived from the summary curve of two eigenvectors of SBMF. In this paper, a spectral analysis of the averaged sunspot numbers, solar irradiance, and the summary curve of eigenvectors of SBMF was carried out using Morlet wavelet and Fourier transforms. We detect a 10.7-year cycle from the sunspots and modulus summary curve of eigenvectors as well a 22-year-cycle and the grand solar cycle of 342 - 350-years from the summary curve of eigenvectors. The Gleissberg centennial cycle is only detected on the full set of averaged sunspot numbers for 400 years or by adding a quadruple component to the summary curve of eigenvectors. Another period of 2200 - 2300 years is detected in the Holocene data of solar irradiance measured from the abundance of 14C isotope. This period was also confirmed with the period of about 2000 - 2100 years derived from a baseline of the solar background magnetic field, supposedly, caused by the solar inertial motion (SIM) induced by the gravitation of large planets. The implication of these findings for different deposition of solar radiation into the northern and southern hemispheres of the Earth caused by the combined effects of the solar activity and solar inertial motion on the terrestrial atmosphere is also discussed.

关键词： Sun: Magnetic Field Sun: Solar Activity Sun: Sunspots Sun: Solar Dynamo