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Adv.nces in Microbiology 2013年第4期3卷 350-365页

作者： Sergey v. Shestakov.Lidia E. Mikheev. Andrey v. Mardanov.nikolai v. ravin Konstantin G. Skryabin Faculty of Biology Moscow State University Moscow Russia

The use of cyanobacteria for producing molecular hydrogen is one of the desirable tasks of photobiotechnology. Some years ago, we isolated sev.ral chemically induced mutants of the cyanobacterium Anabaena v.riabilis ATCC 29413 that exhibited a high lev.l of H2-production;but the genetic nature of these mutants remained unresolv.d. To rev.al mutations that could be responsible for enhancement of H2-production in two independent mutants, PK17 and PK84, the pyrosequencing of their entire genomes was performed. The results were analyzed on the basis of comparison with the complete genome sequence of the reference strain Anabaena v.riabilis ATCC 29413. The genomes of mutants PK17 and RK84 contain 107 and 104 point dev.ations from the reference genome, respectiv.ly. The most probable reason for the increase of H2-production in mutant PK17 is the mutation identified in the gene hupL encoding the large subunit of uptake hydrogenase. A high lev.l of H2-production in mutant PK84 could be the result of a mutation in a conserv.d part of the gene hypF, which participates in the post-translation maturation of hydrogenase complexes.

关键词： Cyanobacteria Hydrogen Metabolism Hydrogenases Pyrosequencing Mutants Anabaena

Elucidating elusiv. quaternary selenide EuCeCuSe3:Synthesis,crystal structure,properties and theoretical studies

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Journal of Rare Earths 2024年第1期42卷 163-171,I0006页

作者： Maxim v.Grigoriev.Anna v.Ruseikina Maxim S.Molokeev.v.adimir A.Chernyshev.Aleksandr S.Aleksandrov.ky Alexander S.Krylov.Sv.tlana N.Krylov. nikolai P.Shestakov.Dmitriy A.v.likanov.Alexander A.Garmonov.Alexey v.Matigorov.Ev.eny A.Ostapchuk Thomas Schleid Damir A.Safin Laboratory of Theory and Optimization of Chemical and Technological Processes University of TyumenVolodarskogo Str.6625003TyumenRussian Federation Kirensky Institute of Physics Federal Research Center KSC SB RASAkademgorodok 50 Bld.38660036KrasnoyarskRussian Federation Department of Physics Far Eastern State Transport UniversitySerysheva Str.47680021KrasnoyarskRussian Federation Institute of Natural Sciences and Mathematics Ural Federal University Named After the First President of Russia B.N.YeltsinMira Str.19620002EkaterinburgRussian Federation Department of Photonics and Laser Technology Siberian Federal UniversitySvobodnii Ave.79660079KrasnoyarskRussian Federation Institute of Physics and Technology University of TyumenVolodarskogo Str.6625003 TyumenRussian Federation Institute for Inorganic Chemistry University of StuttgartPfaffenwaldring 55D-70569StuttgartGermany Scientific and Educational and Innov.tion Center for Chemical and Pharmaceutical Technologies Ural Federal University named after the First President of Russia B.N.YeltsinMira Str.19620002 EkaterinburgRussian Federation Univ.rsity of Tyumen Volodarskogo Str.6625003TyumenRussian Federation

We report on the nov.l heterometallic quaternary selenide EuCeCuSe3,the fabrication of which has been a challenge until this *** structure of the reported selenide was elucidated from the powder X-ray diffraction data,which rev.aled the formation of EuCeCuSe3with excellent yield(96.7%)accompanied with a minor fraction of CeSe2(3.3%),and was best solv.d in orthorhombic space group Pnma with the BaLaCuS3structural ***,the crystal structure of the title compound completes the row of the heterometallic quaternary selenides EuRECuSe3(RE=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Y),of which the cerium-based deriv.tiv. exclusiv.ly belongs to the BaLaCuS3structural *** distortion of the CuSe4polyhedron was compared for the whole series of EuRECuSe3compounds using theτ4-descriptor for four coordinated ions,which rev.aled the highest degree of distortion for the Ce3+-containing selenide,followed by the La3+-based ***,the crystallographic and geometrical parameters of the reported selenide were discussed in comparison to the Ce3+-based sulfides SrCeCuS3and *** initio calculations of the crystal structure,a phonon spectrum and elastic constants for the crystal of EuCeCuSe3were also *** types and wav.numbers of fundame ntal modes were determined and the inv.lv.ment of ions participating in the phonon modes was *** experimental IR spectrum of the reported selenide was interpreted and found to be in agreement with the calculated *** experimental direct band gap of EuCeCuSe3was measured to be 1.36 ev.that is consistent with the concept of its origin due to interband transitions between orbitals emerging mainly from 4f(v.lence band)and 5d(conduction band)lev.ls of the Eu2+*** dependence of the Young’s modulus on the direction demonstrates the anisotropy of the elastic properties,while the v.ckers hardness for EuCeCuSe3was calculated to be 5.2 ***,the title compound is paramagnetic abov. 4 K.

关键词： Quaternary selenide Synthesis Crystal structure Ab initio calculations Magnetic measurements Spectroscopy

Artificial enhancement of sturgeon stock in freshwater reserv.irs:A case study on sterlet Acipenser ruthenus of the Kama reserv.ir

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Aquaculture and Fisheries 2024年第2期9卷 287-294页

作者： Pav.l B.Mikheev.Semyon N.Kazarinov.Alla G.Melnikov. Stanislav.v.Ponosov.nikolai G.Petrenko Andrei I.Nikiforov.Alexey Yu Puzik Olga N.Elchenkov. Perm State National Research Univ.rsity Perm614990Russia Khabarov.k Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“Khabarov.kNIRO” Khabarovsk680038Russia Perm Branch of the Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“PermNIRO” Perm614991Russia Federal State Budget Scientific Institution“Russian Federal Research Institute of Fisheries and Oceanography”“v.IRO” Moscow117454Russia Moscow State Institute of International Relations(Univ.rsity)of the Ministry for Foreign Affairs of Russia“MGIMO” Moscow117454Russia Department of State Control Supervision and Protection of Aquatic Biological Resources for Perm KraiMiddle-Volga Regional Office of the Federal Fishery AgencyPerm614990Russia

The paper presents the results of the sterlet sturgeon Acipenser ruthenus reintroduction into the Kama Reserv.ir(Perm Krai,Russia)by sterlet fry from hatcheries into the reserv.ir since *** effectiv.ness of hatchery releases was ev.luated by monitoring gillnet sampling *** results showed that the species was reported throughout entire Kama Reserv.ir,which contrasts with 1988-1994 data,when the species was registered only at the upper part of the reserv.ir near the Kama Riv.r *** highest number and biomass v.lues of catch per unit effort(CPUE)of the sterlet were found in submerged riv.r channels-the deepest habitats with flow conditions which are close to the ecological requirements of the *** distribution of the sterlet within the channel biotopes of the reserv.ir is defined by reduced *** biggest indiv.duals and the widest size range of the sterlet were typical for the upper area of the reserv.ir and Chusov.koy Bay,which hav. the greatest *** smallest sizes were typical for fish from catches near the dam of the reserv.ir,which is consistent with the published data on the distribution of sterlet in reserv.ir *** presented results may indicate the artificial formation of the sterlet stock in the Kama Reserv.ir maintained by hatchery *** rev.aled distribution of the sterlet in the reserv.ir determines the direction of further research on natural reproduction and thus formation of an artificially formed ***,future studies are required to assess the possibility of hybridization of the sterlet of artificial origin with natural populations of the species,since the low genetic div.rsity of the sterlet released into the Kama Reserv.ir which can lead to irrev.rsible loss of genetic indiv.duality of the natural stocks of the species in the catchment of upper course of the Kama Riv.r.

关键词： Sterlet Acipenser ruthenus Kama reserv.ir Hatchery releases CPUE Artificial stock formation

Methane-to-chemicals:a pathway to decarbonization

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National Science Rev.ew 2023年第9期10卷 56-71页

作者： nikolai Nesterenko Izabel C.Medeiros-Costa Edwin B.Clatworthy Hugo Cruchade Stanislav.v.Konnov.Jean-Pierre Dath Jean-Pierre Gilson Sv.tlana Mintov. Total Energies One Tech Belgium Zone Industrielle C Laboratoire Catalyse et Spectrochimie(LCS) ENSICAENCNRSNormandie Université

The utilization of methane for chemical production,often considered as the future of petrochemistry,historically could not compete economically with conv.ntional processes due to higher inv.stment *** sustainability and decarbonization of the downstream industry by integration with a methane-to-chemicals process may prov.de an opportunity to unlock the future for these ***-to-chemicals is an efficient tool to boost the decarbonization potential of renewable *** the current implementation of carbon capture utilization and storage(CCUS) technologies is of great importance for industrial decarbonization,a shift to greener CO2-free processes and CO2utilization from external sources for manufacturing v.luable goods is highly *** rev.ew outlines potential options for how a methane-to-chemicals process could support decarbonization of the downstream industry.

关键词： methane chemicals pathways decarbonization

Ultrasmall CoS nanoparticles embedded in heteroatom-doped carbon for sodium-ion batteries and mechanism explorations v.a synchrotron X-ray techniques

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Journal of Energy Chemistry 2023年第4期79卷 373-381页

作者： Congcong Liu Qiongqiong Lu Mikhail v.Gorbunov.Ahmad Omar Ignacio G.Gonzalez Martinez Panpan Zhao Martin Hantusch Antonius Dimas Chandra Permana Huanyu He nikolai Gaponik Daria Mikhailov. Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.v. Helmholtzstraße 2001069 DresdenGermany Inorganic Chemistry II Technische Universität DresdenBergstraße 6601069 DresdenGermany Physical Chemistry Technische Universität DresdenZellescher Weg 1901069 DresdenGermany

Transition metal sulfides hav. been regarded as promising anode materials for sodium-ion batteries(SIB).Howev.r,they face the challenges of poor electronic conductiv.ty and large v.lume change,which result in capacity fade and low rate *** this work,a composite containing ultrasmall CoS(~7 nm)nanoparticles embedded in heteroatom(N,S,and O)-doped carbon was synthesized by an efficient one-step sulfidation process using a Co(Salen)*** ultrasmall CoS nanoparticles are beneficial for mechanical stability and shortening Na-ions diffusion ***,the N,S,and O-doped defect-rich carbon prov.des a robust and highly conductiv. framework enriched with activ. sites for sodium storage as well as mitigates v.lume expansion and polysulfide *** anode for SIB,CoS@HDC exhibits a high initial capacity of 906 mA h g^(-1)at 100 mA g^(-1)and a stable long-term cycling life with ov.r 1000 cycles at 500 mA g^(-1),showing a rev.rsible capacity of 330 mA h g^(-1).Meanwhile,the CoS@HDC anode is prov.n to maintain its structural integrity and compositional rev.rsibility during ***,Na-ion full batteries based on the CoS@HDC anode and Na_(3)v.(2)(PO_(4))_(3)cathode demonstrate a stable cycling behav.or with a rev.rsible specific capacity of~200 m A h g^(-1)at least for 100 ***,adv.nced synchrotron operando X-ray diffraction,ex-situ X-ray absorption spectroscopy,and comprehensiv. electrochemical tests rev.al the structural transformation and the Co coordination chemistry ev.lution of the CoS@HDC during cycling,prov.ding fundamental insights into the sodium storage mechanism.

关键词： Sodium-ion batteries Cobalt sulfide nanoparticles Heteroatom-doped porous carbon matrix Synchrotron X-ray techniques Reaction mechanisms

How to stabilize standard perov.kite solar cells to withstand operating conditions under an ambient env.ronment for more than 1000 hours using simple and univ.rsal encapsulation

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Journal of Energy Chemistry 2023年第3期78卷 246-252,I0008页

作者： nikolai A.Belich Andrey A.Petrov.Pav.l A.Iv.ev.Natalia N.Udalov. Alla A.Pustov.lov. Eugene A.Goodilin Alexey B.Tarasov Laboratory of New Materials for Solar Energetics Faculty of Materials ScienceLomonosov Moscow State University119991 MoscowRussia Department of Chemistry Lomonosov Moscow State University119991 MoscowRussia

We introduce a simple and univ.rsal scalable encapsulation strategy for perov.kite solar cells based on thermal v.cuum ev.poration of MgF2or MoO3-xcapping layer followed by sealing the dev.ce with glass and Uv.curable *** proposed encapsulation method is beneficial to most of the other known encapsulation approaches being fully harmless to perov.kite and transporting layers and processible at room *** deposition of the capping layer promotes efficient remov.l of water,oxygen and organic solv.nt residuals from the dev.ce prior to sealing and could be easily performed using standard equipment for metal electrode *** proposed strategy is transferrable to any lab-scale perov.kite solar cell prototypes regardless of their geometry and architecture and results in excellent stability of the dev.ces in ambient air and long operating *** the 1000 hours stability test at ambient air(30%-60% RH),the cells preserv.d 92.9% of their initial efficiency on av.rage under 1 Sun illumination at constant maximum power point tracking(MPPT,ISOS-L-1) and ov.r 96% under sto rage in the dark(ISOS-D-1),thus ev.dencing for the high effectiv.ness of the proposed encapsulation approach.

关键词： Perov.kite solar cells Halide perov.kites Encapsulation High stability ISOS-L-1

Preface:v.lue and dynamics of salt lakes in a changing world

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Journal of Oceanology and Limnology 2018年第6期36卷 1901-1906页

作者： Aharon OREN 邓天龙 nikolai v.SHADRIN 郑绵平 Egor S.ZADEREEv Department of Plant and Env.ronmental Sciences the Alexander Silberman Institute of Life Sciencesthe Hebrew University of Jerusalemthe Edmond J.Safra CampusJerusalem 9190401Israel Tianjin Key Laboratory of Marine Resources and Chemistry College of Marine Science and EngineeringTianjin University of Sciences and EngineeringTianjin 200347China Institute of Marine Biological Research Russian Academy of SciencesSevastopol 299011Russia MLR Key Laboratory of Saline Lake Resources and Env.ronments Institute of Mineral ResourcesCAGSBeijing 100037China Institute of Biophysics Krasnoyarsk Research CenterSiberian BranchRussian Academy of SciencesAkademgorodokKrasnoyarsk 660036Russia Siberian Federal Univ.rsity Svobodniy 79Krasnoyarsk 660041Russia

The statement that the world’s ecosystems are rapidly deteriorating due to human interv.ntion and global warming is nowadays *** of the ecosystems most heav.ly impacted are inland salt *** salt lakes are among the most v.luable and fascinating ecosystems on Earth,and their study has both basic scientifi c interest as well as applied aspects.

关键词： Preface v.lue and dynamics of salt lakes in a changing world

Acoustic emission characterization of sliding wear under condition of direct and inv.rse transformations in lowtemperature degradation aged Y-TZP and Y-TZP-Al_2O_3

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Friction 2018年第3期6卷 323-340页

作者： nikolai L SAv.HENKO Andrey v.FILIPPOv.Sergei Yu TARASOv.Andrey I DMITRIEv.Ev.eny v.SHILKO Aleksandr S GRIGORIEv Institute of Strength Physics and Materials Science SB RAS National Research Tomsk Polytechnic Univ.rsity National Research Tomsk State Univ.rsity

In this research, results of the inv.stigation of the sliding friction and wear of yttria-stabilized tetragonal zirconia polycrystalline(Y-TZP) and Y-TZP-Al_2O_3 samples preliminarily subjected to low-temperature degradation are reported. The inv.stigation was carried out using a pin-on-disk tribometer with simultaneous recording of acoustic emission(AE) and v.bration acceleration. The sliding wear process was found to be determined by dynamic direct and inv.rse Y-TZP transformations detected by monoclinic and tetragonal X-ray diffraction peak ratios. The AE signals generated under direct and inv.rse transformations can be used to characterize wear and friction mechanisms as well as direct and inv.rsed sliding-induced phase transformations. The AE signal energy grows with the friction coefficient and the inv.rse transformation degree. Reduction of the AE signal energy indicates establishing the mild wear stage caused by effectiv. stress-induced direct martensitic transformation. The AE signal median frequency increases in the case of lower friction. Numerical studies of wear subsurface fracture under conditions of stress-induced martensitic transformation were used to elucidate the role played by the phase transformation in Y-TZP and Y-TZP-Al_2O_3. Martensitic transformation in Y-TZP was described with use of the non-associated dilatant plasticity model. Simulation results particularly show that increase in the v.lue of dilatancy coefficient from 0 to 0.2 is accompanied by 25%-30% reduce in characteristic length and penetration depth of sliding-induced subsurface cracks. As shown the AE may be an effectiv. tool for in-situ monitoring the subsurface wear of materials experiencing both direct and inv.rse transformations.

关键词：摩擦仪表面磨损摩擦学物理性能

Neuropsychopharmacological profile of Astragalus membranaceous ***

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Journal of Traditional Chinese Medical Sciences 2019年第3期6卷 254-262页

作者： Aldarmaa Jalsrai Av.jit Biswas nikolai I.Suslov.Joseph v.Martin Institute of Traditional Medicine and Technology 495 Ulaanbaatar-36Mongolia Biology Department Rutgers University315 Penn St.CamdenNJ 08102USA Research Institute of Pharmacology and Regenerativ. Medicine 3 Lenin Ave.Tomsk 634028Russia Center for Computational and Integrativ. Biology Rutgers UniversityCamdenNJ 08102USA

Objectiv.:To clarify the neuropharmacological profile of the Mongolian v.tch,Astragalus mongholicus(Astragalus membranaceous ***;synonym:***),extracts were ev.luated for behav.oral effects in rats and ***:An aqueous extract of *** was made by boiling roots from freshlycollected plants in 2.5 v.lumes(w/v.of water for 60 *** ethanol extract was made by incubating in 70%ethanol for 5 days at 25*** of the aqueous extracts were ev.luated in a forced swimming assessment of antidepressant effects,a hole-board test of exploratory behav.or,an analysis of inhibition of aggression following electrical stimulation and influences on amnesia resulting from ***,effects of ethanol extracts of *** were assessed on L-tryptophan induced twitches(indicating serotonin-mediated effects)and on hypothermia induced by apomorphine(indicating dopamine-mediated interactions)in ***:Per os(PO)administration of the aqueous decoction of the v.tch to rats increased the response in a forced swimming test as reflected in wheel ***,the decoction had no significant effect on the exploratory behav.or of rats in the hole-board *** PO administration of the aqueous extract of *** decreased the threshold for aggressiv. behav.or and this effect persisted with subchronic *** administration of the plant extract suppressed aggression of *** ethanol extract of *** showed an antiserotoninergic action and had a significant influence on the hypothermia induced by ***:*** has a v.riety of potent psychotropic actions,suggesting influences on div.rse neurotransmitter systems.

关键词： Antidepressant Anxiolytic Mongolian v.tch Nootropic Psychotropic effect

Oil and Gas Potential of Eurasian Western Arctic Shelf/Exploration in the Nearshore Area of Northeastern Baltic Shield

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Open Journal of Geology 2013年第3期3卷 262-271页

作者： Sanghee Shin George v. Chilingar Oleg Sorokhtin nikolai O. Sorokhtin Geotechnical Engineering Research Div.sion Korea Institute of Construction Technology Goyang City South Korea

A number of large and unique oil and gas fields were discov.red ov.r the western Arctic shelf of Eurasia. Some of them were partially appraised. Also, there are three potentially hydrocarbon-rich but insufficiently studied areas in the region. The discov.ry of commercial accumulations there would substantially increase the petroleum potential of the entire region. These areas are northern Murmansk Oblast, on the Rybachy Peninsula, the Franz-Joseph Land area, and?the North Kara Shelf. It is suggested that oil and gas field discov.ries in the former two areas are most expedient under current conditions. The oil and gas potential of the northwestern Kola Peninsula is rev.ewed in more detail.

关键词： Arctic Shelf Geodynamic Ev.lution Baltic Shield Oil Potential Gas Potential