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steinernema tbilisiensis sp. n. （Nematoda： steinernematidae）--A New species of Entomopathogenic Nematode from Georgia

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Journal of Agricultural science and Technology(A) 2015年第4期5卷 264-276页

作者： oleg Gorgadze Manana Lortkhipanidze Jean-Claude Ogier Patrick Tailliez Medea Burjanadze Institute of Zoology ofllia state University Tbilisi 0162 Georgia INRA UMR 1333 DiversitY Genomes & Interactions Microorganismes-lnsectes (DGIMI) Montpellier F-34000 France Universite Montpellier 2 UMR 1333 DiversitY Genomes & Interactions Microorganismes-lnsectes (DG1M1) MontpellierF-34000 France Agricultural University of Georgia Tbilisi 0103 Georgia

A new species of entomopathogenic nematode （EPN）, steinernema tbilisiensis sp. n. is described. The species was isolated from soil samples of the deciduous forest located in the Tbilisi area. Morphological and morphometric data as well as phylogenetic analysis show that s. tbilisiensis sp. n. belongs to the group s. affine/intermedium. s. tbilisiensis sp. n. has been attributed to the group s. affine/intermedium on the basis of spicule and gubernaculum structure. The new species differs from other species of s. affine/intermedium group in the following diagnostic characters： the spicule of s. tbilisiensis sp. n. is the smallest and the gubernaculum of s. tbilisiensis sp. n. is shorter than other species of the s. affine/intermedium group. Infective juveniles （IJs） of s. tbilisiensis sp. n. are distinguished by a relatively long body （L = 866 pm）, the position of excretory pore （EP = 72 ram）, the length of the esophagus （Es = 140 ~tm） and the length of the anal body width （ABW = 25μm）. IJs ofs. tbilisiensis sp. n. have four lateral lines like s. beddingi, but the number of lines is six in s. affine, s. sichuanense and s. intermedium. Also the analysis of rDNA （28s and ITs） gene sequences depicts this steinernema species as a distinct and unique entity. The symbiotic bacteria of s. tbilisiensis sp. n. was isolated and found to be Xenorhabdus bovienii using a multigene approach.

关键词： New species steinernema morphology phylogeny EPN.

Possibility for Recognition of Psychic Brain Activity with Continuous Wavelet Analysis of EEG

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Journal of Behavioral and Brain science 2019年第3期9卷 67-77页

作者： Evgeny A. Yumatov Alexandr E. Hramov Vadim V. Grubov oleg s. Glazachev Elena N. Dudnik Nikolay A. Karatygin P.K. Anokhin Research Institute of Normal Physiology Moscow Russia Yuri Gagarin state Technical University of saratov Saratov Russia First Moscow state Medical University of the Ministry of Health of the Russian Federation (sechenov University) Moscow Russia

The brain is a unique organization in nature, possessing the ability for psychic activity, which manifests itself in thoughts, feelings and emotions. In present days, numbers of mathematical methods for analysis of electroencephalogram (EEG) were developed with continuous wavelet transform being one of the most successive approaches for studying of brain activity. This paper is aimed to develop methods for investigation of psychic brain activity with help of continuous wavelet analysis of EEG. Ability of human to realize semantic content of the image presented on the screen was tested. Experiment was accompanied with simultaneous EEG recording, which was held with developed software and PC-based experimental setup. The information capabilities of continuous wavelet transform-based method for EEG analysis were improved for the recognition of specific patterns in human brain activity. Comparative wavelet analysis was carried out for EEG recordings at the moment of awareness of the semantic content of the image and for EEG recordings in the absence of conscious (subjective) perception of the semantic content of the image. significant differences were shown in the alpha rhythm of EEG for the moments of awareness of the semantic content of the image and for the moments of absence of conscious perception. Continuous wavelet analysis of EEG showed that the alpha rhythm is the main EEG rhythm, which can be used to estimate the presence of subjective perception of the visual image. significant differences were shown in the alpha rhythm of EEG for the moments of awareness of the semantic content of the image and for the moments of absence of conscious perception. Conducted studies allow to conclude that revealing of brain activity related to visual image awareness is possible through analysis of EEG.

关键词： Brain Psychic Consciousness Electroencephalogram Continuous Wavelet Analysis

Formation of Glaciation Epochs

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Journal of Environmental Protection 2013年第6期4卷 516-521页

作者： sanghee shin George V. Chilingar oleg sorokhtin Nikolai O. sorokhtin Geodynamics and Paleo-Oceanology Laboratory Oceanology Institute Russian Academy of Sciences Moscow Russia Geotechnical Engineering Research Division Korea Institute of Construction Technology Goyang City South Korea Rudolf W. Gunnerman Energy and Environment Laboratory University of Southern California Los Angeles USA seismology and Geodynamics Laboratory Oceanology Institute Russian Academy of Sciences Moscow Russia

The effect of Earth precession angle on a climate is presented here. It is shown that the glaciation epochs occurred only when the precession angle was low. After the continental glaciation formed in the Northern hemisphere, Earth’s spherecal symmetry was disrupted and its precession angle increased drastically. As a result, a drastic and rapid climate warm-up occurred, the glaciers melted down and an interglacial stadial1 began. subsequently, affected by the Lunar-solar gravity pull on the Earth’s equatorial swelling, the precession angle gradually decreased and a new cooling-down phase occurred. As a result, there was nonlinear oscillation of Earth’s climate with periods on the order of 100 - 120 MY.

关键词： Earth’s Precession Glaciation Epochs Climate Evolution Climate Change Global Warming Global Cooling

A Comparative study on Pharmacokinetics of Tricin, a Flavone from Gramineous Plants with Antiviral Activity

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Journal of Biosciences and Medicines 2021年第2期9卷 76-91页

作者： Galina I. solyanik oleg s. Zulphigarov Iryna V. Prokhorova Olga N. Pyaskovskaya Denis L. Kolesnik Viktor P. Atamanyuk Laboratory of Molecular and Cellular Mechanisms of Metastasis R.E. Kavetsky Institute of Experimental Pathology Oncology and Radiobiology of NASU Kyiv Ukraine sMC Ecopharm Ltd. Kyiv Ukraine

Tricin (and tricin containing plant extracts) has been shown to exert a pronounced antiviral activity, high radical scavenging activity and is favored for its safety profile. In the present study we have analyzed the pharmacokinetics of tricin after a single intravenous and oral administration to Wistar rats of an ethanol extract of Calamagrostis Adans and Deschampsia Beauv plants (test agent) at different doses. Tricin concentrations in blood plasma and blood cells were measured at different time points. Two-compartment (for intravenous injection) and one compartment (for oral administration) models were used for the analysis of tricin pharmacokinetics. The results showed that the pharmacokinetics of tricin after intravenous injection of test agent has a pronounced biphasic character, is well described by a two-compartment pharmacokinetic model, and is characterized by non-linear dose-dependence. The pharmacokinetics of tricin administered orally is characterized by a high rate of absorption from the gastrointestinal tract into the blood and rather slow elimination, which leads to a large volume of distribution in the body and a fairly high bioavailability. The obtained results indicate the advantages of the oral route of administration over the intravenous route.

关键词： Polyphenolic Compounds Tricin Pharmacokinetics Bioavailability

NEW METHOD FOR THE AsYMMETRIC REDUCTION OF KETOPHOsPHONATEs

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NEW METHOD FOR THE ASYMMETRIC REDUCTION OF KETOPHOSPHONATES

Batumin—A selective Inhibitor of staphylococci—Reduces Biofilm Formation in Methicillin Resistant <i>staphylococcus aureus</i>

第17届国际磷化学大会

作者： Vitaly V.Nesterov oleg I.Kolodiazhnyi Institute of Bioorganic Chemistry and Petrochemistry National Academy of Sciences of UkraineMurmanskaia 1KyivUKRAINE Institute of Bioorganic Chemistry and Petrochemistry National Academy of Sciences of UkraineMurmanskaia 1KyivUKRAINE

＜正＞The chiral reducing reactants （s）-1 or （R）-1 were prepared from lithium, sodium or tetrabutylammonium borohydrides and （s）- or （R）-tartaric acids [1,2].

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Open Journal of Medical Microbiology 2015年第4期5卷 193-201页

作者： Larisa Churkina Mario Vaneechoutte Elena Kiprianova Natalia Perunova Lilja Avdeeva oleg Bukharin Department of Antibiotics Institute of Microbiology and Virology National Academy of Sciences of Ukraine Kyiv Ukraine Laboratory for Bacteriology Research Faculty of Medicine & Health Sciences Ghent University Ghent Belgium Institute of Cellular and Intracellular symbiosis Ural Branch of Russian Academy of Sciences Orenburg Russian Federation

The antibiotic batumin, produced by Pseudomonas batumici, has been shown to be highly active against 123 type and reference strains and clinical isolates of 30 staphylococcus species (including MRsA and small colony variants—(ssCVs) of s. aureus, s. epidermidis and s. haemolyticus). Batumin activity against these bacteria did not depend on the species, origin or resistance to other antibiotics and its MIC was 0.0625 - 0.5 mg/ml. Batumin influence on biofilm formation was studied in clinical isolates of s. aureus, s. epidermidis and s. intermedius. Addition of batumin at a concentration of half of the MIC in the broth, i.e. 0.125 μg/ml, decreased the biofilm of 16 out of 20 s. aureus strains to varying degrees. Batumin was more effective against staphylococcus strains with strong biofilm formation. Using atomic-force microscopy, it could be shown that batumin reduced the number of s. aureus ATCC 25923 adherent cells more than fourfold. The adherent cells of staphylococci were visualized as monolayers of separate islets. A detailed study of the surface of bacterial cells treated with batumin allowed to establish significant reduction of their roughness values. Observed values were typical for planktonic s. aureus cells. The obtained data explain one of the mechanisms of the antimicrobial activity of batumin, which is based оn preventing the formation of s. aureus biofilm. As such, batumin could be considered as an agent offering opportunities for the treatment of staphylococcal biofilm-associated infections.

关键词： Batumin staphylococci ssCVs Biofilm

Expanding Electrochemical stability Window of Water

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Expanding Electrochemical Stability Window of Water

Numerical Modeling of the Initial Formation of Cyclonic Vortices at Tropical Latitudes

第三届全国储能科学与技术大会

作者： Kang Xu oleg Borodin Khalil Amine Chunsheng Wang Electrochemistry Branch of the U.s.Army Research Laboratory Chemical sciences and Engineering Division Argonne National Laboratory Department of Chemical and Biomolecular Engineering University of MarylandCollege Park

The electrochemical stability of window is defined by the evolution of hydrogen and oxygen from its reductive and oxidative decompositions,*** this window is only.23 V,and in most aqueous electrolytes,its maximum value rests under 1.50 *** many advantages of water molecule as an excellent solvent(high dielectric constant,strong solvating power,high fluidity,and non-flammability),this narrow stability window precludes

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Atmospheric and Climate sciences 2014年第5期4卷 899-906页

作者： Igor V. Mingalev Natalia M. Astafieva Konstantin G. Orlov Victor s. Mingalev oleg V. Mingalev Valery M. Chechetkin Polar Geophysical Institute Kola Scientific Center of the Russian Academy of Sciences Apatity Russia space Research Institute of the Russian Academy of sciences Moscow Russia Keldysh Institute of Applied Mathematics of the Russian Academy of sciences Moscow Russia

To investigate the initial formation of large-scale vortices at tropical latitudes a regional non-hydrostatic mathematical model of the wind system of the lower atmosphere, developed earlier in the Polar Geophysical Institute, is utilized. Three-dimensional distributions of the atmospheric parameters in the height range from 0 to 15 km over a limited region of the Earth’s surface are produced by the utilized model. simulations are performed for the case when the limited three-dimensional simulation domain is intersected by an intertropical convergence zone in the west-east direction. simulation results indicated that the origin of two convexities in the north direction in the configuration of the intertropical convergence zone can lead to the formation of three distinct tropical cyclones during the period of about four days.

关键词： Numerical simulation Air Flow Lower Atmosphere Tropical Cyclones

Bimeron clusters in chiral antiferromagnets

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npj Computational Materials 2020年第1期6卷 270-278页

作者： Xiaoguang Li Laichuan shen Yuhao Bai Junlin Wang Xichao Zhang Jing Xia Motohiko Ezawa oleg A.Tretiakov Xiaohong Xu Michal Mruczkiewicz Maciej Krawczyk Yongbing Xu Richard F.L.Evans Roy W.C.hantrell Yan Zhou school of science and Engineering The Chinese University of Hong Kong518172 ShenzhenChina Hefei National Laboratory for Physical sciences at the Microscale Department of PhysicsUniversity of Science and Technology of China230026 HefeiChina Research Institute of Materials science of shanxi Normal University&Collaborative Innovation Center for shanxi Advanced Permanent Magnetic Materials and Technology 041004 LinfenChina school of Physics and Electronic Information Shanxi Normal University041004 LinfenChina Department of Physics University of YorkYork YO105DDUK York-Nanjing International Center of spintronics(YNICs) Nanjing University210093 NanjingChina Department of Applied Physics The University of Tokyo7-3-1 HongoTokyo 113-8656Japan school of Physics The University of New South WalesSydney 2052Australia National University of science and Technology‘MIsis’ Moscow 119049Russia school of Chemistry and Materials science of shanxi Normal University&Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education 041004 LinfenChina Institute of Electrical Engineering Slovak Academy of SciencesDúbravskácesta 984104 BratislavaSlovakia Centre for Advanced Materials Application CEMEA Slovak Academy of SciencesDúbravskácesta 5807/984511 BratislavaSlovakia Faculty of Physics Adam Mickiewicz University in PoznanUniwersytetu Poznanskiego 261-614 PoznanPoland

A magnetic bimeron is an in-plane topological counterpart of a magnetic *** the topological equivalence,their statics and dynamics could be distinct,making them attractive from the perspectives of both physics and spintronic *** this work,we demonstrate the stabilization of bimeron solitons and clusters in the antiferromagnetic(AFM)thin film with interfacial Dzyaloshinskii–Moriya interaction(DMI).Bimerons demonstrate high current-driven mobility as generic AFM solitons,while featuring anisotropic and relativistic dynamics excited by currents with in-plane and out-ofplane polarizations,***,these spin textures can absorb other bimeron solitons or clusters along the translational direction to acquire a wide range of Néel topological *** clustering involves the rearrangement of topological structures,and gives rise to remarkable changes in static and dynamical *** merits of AFM bimeron clusters reveal a potential path to unify multibit data creation,transmission,storage,and even topology-based computation within the same material system,and may stimulate spintronic devices enabling innovative paradigms of data manipulations.

关键词： properties topological clusters