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Integrative Zoology 2014年第4期9卷 471-480页

作者： Gennady G.BOESKOROv Olga R.POTAPOvA Eugeny N.MASHCHENKO Albert v.PROTOPOPOv tatyana v.kuznetsova Larry AGENBROAD Alexey N.TIKHONOv Diamond and Precious Metal Geology Institute Siberian Branch of Russian Academy of SciencesYakutskRussia The Mammoth Site of Hot Springs Museum Hot SpringsSouth DakotaUSA Paleontological Institute Russian Academy of SciencesMoscowRussia Department of the Mammoth Fauna Studies Academy of Sciences of the Sakha(Yakutia)Republic YakutskRussia M.v.Lomonosov Moscow State University MoscowRussia Zoological Institute Russian Academy of SciencesSt.PetersburgRussia

The frozen bodies of a young woolly mammoth(Mammuthus primigenius),a wild horse(Equus sp.)and a steppe bison(Bison priscus)were recently found in the northern Yakutia(northeastern Siberia).All specimens have preserved bones,skin and soft *** the woolly mammoth and the Pleistocene horse were represented by partial frozen bodies,the steppe bison body was recovered in an absolutely complete *** specimens were found frozen in the permafrost,with some of the tissues *** wild horse and steppe bison are of Holocene age,and the mammoth is of Late Pleistocene age.

关键词： bison horse mammoth mummy Siberia

Diclofenac sodium aqueous systems at low concentrations: Interconnection between physicochemical properties and action on hydrobionts

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Journal of Environmental Sciences 2020年第2期32卷 177-186页

作者： Irina S.Ryzhkina Yuliya v.Kiseleva Lyaisan I.Murtazina tatyana v.kuznetsova Erik R.Zainulgabidinov Igor v.Knyazev Andrew M.Petrov Sergey E.Kondakov Alexander I.Konovalov Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific CenterRussian Academy of Sciences8 Arbuzov str.Kazan 420088Russia Institute for Problems of Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences 28 Daurskaya Str.Kazan 420087Russia Lomonosov Moscow State University Chemistry Dept.1/3 Lenin HillsMoscow 119899Russia

Diclofenac sodium(DS) is a widely used nonsteroidal anti-inflammatory drug(NSAIDs).NSAIDs are poorly removed during standard wastewater *** consequences of the presence of NSAIDs in rivers and lakes at 10-11–10-8 mol/L are not yet established;therefore, ecotoxicologists have focused their efforts on studying the effect of lowconcentration NSAIDs on fish and hydrobionts, and also on predicting the potential risks to *** provides some information about the bioeffects of some NSAID solutions in low concentrations but there is no physicochemical explanation for these *** the physicochemical patterns of DS solutions in the low range of concentrations and establishing an interconnection between the solutions’ physicochemical properties and bioeffects can provide a conceptually new and important source of information regarding the unknown effects of *** physicochemical properties and action of DS solutions on Ceriodaphnia affinis cladocerans,Paramecium caudatum infusoria, Chlorella vulgaris unicellular green algae, as well as on the growth of the roots of Triticum vulgare wheat seeds, were studied in the calculated concentration range of 1 × 10-3–1 × 10-18 mol/*** relationship between these phenomena was established using the certified procedures for monitoring the toxicity of natural water and *** was shown for the first time that water solutions of DS are dispersed systems in which the dispersed phase undergoes a rearrangement with dilution, accompanied by changes in its size and properties, which affects the nonmonotonic dependences of the system’s physicochemical properties and could cause nonmonotonic changes in action on hydrobionts in the low concentration range.

关键词： Diclofenac sodium Low concentration Aqueous solutions Physicochemical properties Hydrobionts Toxicity

Three-Dimensional Convection in an Inclined Porous Layer Subjected to a vertical Temperature Gradient

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Fluid Dynamics & Materials Processing 2024年第9期20卷 1957-1970页

作者： Ivan Shubenkov tatyana Lyubimova Evgeny Sadilov Computational Fluid Dynamics Laboratory Institute of Continuous Media Mechanics UB RASPerm614068Russia Theoretical Physics Department Perm State UniversityPerm614990Russia

In this paper,we study the onset and development of three-dimensional convection in a tilted porous layer saturated with a *** layer is subjected to a gravitational field and a strictly vertical temperature ***,problems of thermal convection in tilted porous media saturated with a liquid are studied by assuming constant different temperatures at the boundaries of the layer,which prevent these systems from supporting conductive(non-convective)*** boundary conditions considered in the present work allow a conductive state and are representative of typical geological *** an earlier work,we carried out a linear stability analysis of the conductive *** was shown that at any layer tilt angles,the most dangerous type of disturbances are longitudinal ***,a non-zero velocity component exists in *** the present work,threedimensional non-linear convection regimes are *** original three-dimensional problem is reduced to two-dimensional one with an analytical expression for the velocity z-component v_(z)=v_(z)(x,y).It is shown that the critical Rayleigh number values obtained through numerical solutions of the obtained 2D problem by a finite difference method for different layer inclination angles,are in a good agreement with those predicted by the linear *** number of convective rolls realized in nonlinear calculations also fits the linear theory predictions for a given cavity *** carried out at low supercriticalities show that a direct bifurcation takes *** increasing supercriticality,no transitions to other convective regimes are *** situation studied in this problem can be observed in oil-bearing rock formations under the influence of a geothermal temperature gradient,where the ensuing fluid convection can affect the distribution of oil throughout the layer.

关键词： Thermal convection inclined layer porous media vertical temperature gradient

3,6-Bis-β-Dicarbonylsubstituted Carbazoles Bearing N-Spacers and Their Eu(III) Complexes as Immunofluorescent Labelling Agents

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International Journal of Organic Chemistry 2024年第1期14卷 20-31页

作者： Dmitry E. Pugachev Georgy v. Zatonsky tatyana S. Kostryukova Anna G. Shubina Nikolay v. vasiliev Department of Biological Microanalysis FGUP State Research Institute of Biological Engineering Moscow Russia Department of Theoretical and Applied Chemistry State University of Education Mytishchi Russia

New reagents for immunofluorescence analysis of carbazole series containing fluorinated β-dicarbonyl fragments and carboxylic substituent groups separated by spacers of different lengths from the light-gathering carbazole scaffold have been developed. The markers in complex with Eu3+ ions possess stability in the aqueous phase, intense and prolonged luminescence (τ 550 - 570 μs) with characteristic emission maxima in the region of 615 nm and excitation wavelengths in the region of 380 - 390 nm, which distinguishes them from most of the analogs used. In the study of marker conjugation with streptavidin, a reagent containing 4 - 5 europium labeling complexes based on spacer-containing carbazole tetraketone was obtained. The marker-doped silicate nanoparticles exhibit intense and long-lived luminescence in the characteristic region.

关键词： Fluorescence Immunoassay Fluorinated β-Diketones Carbazole Europium Complexes Streptavidin Nanodispersions

Prompt neutron emission in ^(250)No spontaneous fission associated with ground and isomeric state decays

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Chinese Physics C 2024年第6期48卷 112-117页

作者： R.S.Mukhin A.v.Isaev A.v.Andreev M.L.Chelnokov v.I.Chepigin H.M.Devaraja I.N.Izosimov A.A.kuznetsova O.N.Malyshev A.G.Popeko Yu.A.Popov A.Rahmatinejad B.Sailaubekov T.M.Shneidman E.A.Sokol A.I.Svirikhin M.S.Tezekbayeva M.A.Bychkov A.v.Yeremin O.Dorvaux B.Gall K.Kessaci K.Hauschild A.Lopez-Martens Joint Institute for Nuclear Research Dubna141980Russia Dubna State University Dubna141982Russia Institute of Nuclear Physics Almaty050032Kazakhstan L.N.Gumilyov Eurasian National University Astana010008Kazakhstan Kazan Federal University Kazan420008Russia Universitéde Strasbourg CNRSStrasbourg67000France IJCLab IN2P3-CNRSUniversitéParis-SaclayOrsay91400France

The complete-fusion reaction^(204)Pb(^(48)Ca,2n)^(250)No was used to study two activities of^(250)No with distinct half-lives.A total of 1357 events were observed in the SFiNx neutron detection *** average number of neutrons emitted per spontaneous fission of^(250)No was determined to be(4.1±0.1).The unusually symmetrical shape of the prompt neutron multiplicity distribution was restored and presented for the first *** tests were performed to compare the prompt neutron multiplicity distributions associated with the ground state and K-isomer state decays.

关键词： spontaneous fission prompt neutrons actinide

Effects of an attached functionally graded layer on the electromechanical behaviors of piezoelectric semiconductor fibers

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Applied Mathematics and Mechanics(English Edition) 2022年第9期43卷 1367-1380页

作者： Kai FANG Nian LI Peng LI Zhenghua QIAN v.KOLESOv I.kuznetsova State Key Laboratory of Mechanics and Control of Mechanical Structures College of Aerospace EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China Nanjing University of Aeronautics and Astronautics Shenzhen Research Institute Shenzhen 518057Guangdong ProvinceChina Kotel’nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences Moscow 125009Russia

In this paper,we propose a specific two-layer model consisting of a functionally graded(FG)layer and a piezoelectric semiconductor(PS)*** on the macroscopic theory of PS materials,the effects brought about by the attached FG layer on the piezotronic behaviors of homogeneous n-type PS fibers and PN junctions are *** semi-analytical solutions of the electromechanical fields are obtained by expanding the displacement and carrier concentration variation into power *** show that the antisymmetry of the potential and electron concentration distributions in homogeneous n-type PS fibers is destroyed due to the material inhomogeneity of the attached FG *** addition,by creating jump discontinuities in the material properties of the FG layer,potential barriers/wells can be produced in the middle of the ***,the potential barrier configuration near the interface of a homogeneous PS PN junction can also be manipulated in this way,which offers a new choice for the design of PN junction based devices.

关键词： piezoelectric semiconductor(PS) functionally graded(FG)material composite structure PN junction

Experimental and ab initio study of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F stability in the pressure range of 0–10 GPa

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International Journal of Minerals,Metallurgy and Materials 2023年第9期30卷 1846-1854页

作者： Nursultan E.Sagatov tatyana B.Bekker Yulia G.vinogradova Alexey v.Davydov Ivan v.Podborodnikov Konstantin D.Litasov Sobolev Institute of Geology and Mineralogy Siberian Branch of Russian Academy of SciencesNovosibirsk 630090Russia Department of Geology and Geophysics Novosibirsk State UniversityNovosibirsk 630090Russia Research and Development Department Novosibirsk State University of ArchitectureDesign and Arts(NSUADA)Novosibirsk 630099Russia vereshchagin Institute for High Pressure Physics Russian Academy of SciencesTroitsk 108840Russia Fersman Mineralogical Museum Russian Academy of SciencesMoscow 119071Russia

Both numerical and experimental studies of the stability and electronic properties of barium–sodium metaborate Ba_(2)Na_(3)(B_(3)O_(6))_(2)F(P63/m) at pressures up to 10 GPa have been carried out. Electronic-structure calculations with HSE06 hybrid functional showed that Ba_(2)Na_(3)(B_(3)O_(6))_(2)F has an indirect band gap of 6.289 ev. A numerical study revealed the decomposition of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F into the BaB_(2)O_(4),Na BO_(2), and NaF phases above 3.4 GPa at 300 K. Subsequent high-pressure high-temperature experiments performed using ‘Discoverer-1500’DIA-type apparatus at pressures of 3 and 6 GPa and temperature of 1173 K confirmed the stability of Ba_(2)Na_(3)(B_(3)O_(6))_(2)F at 3 GPa and its decomposition into BaB_(2)O_(4), NaBO_(2), and NaF at 6 GPa, which was verified by energy-dispersive X-ray analysis and Raman spectroscopy. The observed Raman bands of the Ba_(2)Na_(3)(B_(3)O_(6))_(2)F phase were assigned by comparing the experimental and calculated spectra. The experimental Raman spectra of decomposition reaction products obtained at 6 GPa suggest the origin of a new high-pressure modification of barium metaborate BaB_(2)O_(4).

关键词： density functional theory phase stability borate high pressure Raman spectroscopy

Modeling of cold-temperate tree Pinus koraiensis (Pinaceae) distribution in the Asia-Pacific region: Climate change impact

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Forest Ecosystems 2022年第2期9卷 160-167页

作者： tatyana Y.Petrenko Kirill A.Korznikov Dmitry E.Kislov Nadezhda G.Belyaeva Pavel v.Krestov Botanical Garden-Institute FEB RAS Makovskogo St.142Vladivostok690024Russia Institute of Geography RAS Staromonetniy 24-4Moscow119017Russia

Background:Pinus koraiensis Siebold&Zucc.(Korean pine)is a key species of the mixed cold temperate forests of Northeast *** climate change can significantly worsen the quality of *** habitats and therefore lead to a large-scale structural and functional transformation of the East Asian mixed *** built a species distribution model(SDM)for *** using the random forest classifier–a versatile machine learning al-gorithm,to discover overlap areas of potential species occurrence in the climate condition of the Last Glacial Maximum(~21,000 year before present)and in the projected future climates(2070 year),from which possible permanent refugia for *** were ***:Using the random forest supervised learning algorithm,we developed models of the modern distribution of *** in accordance with the five selected bioclimatic variables(Kira’s warmth and coldness indices,the index of continentality,the rain precipitation index,and the snow precipitation index).In addition to current climatic conditions,we performed this analysis for the climate of the Last Glacial Maximum and for the future projected climate(2070)under scenarios RCP2.6 and *** the predictors,the rain index appears to be the most *** land area estimates with high suitability for *** was 303,785 km 2 under current climatic conditions,586,499 km 2 for the Last Glacial Maximum,and 337,573 km^(2) for the future(2070)period under the RCP2.6 scenario,and 397,764 km^(2) under the RCP8.5 ***:Most of the potential range of *** during the Last Glacial Maximum was located outside the current distribution area of the *** climatically suitable *** habitats will likely disappear in the western part of its modern *** the southern part of the range,which includes glacial refugia,the areas of continuous distribution of the *** populations since the end of the Pleistocene are expected to

关键词： Climate change Bioclimatic modeling Species distribution model Korean pine Northeast Asia

Comprehensive semen examination in patients with pancreatic-sufficient and pancreatic-insufficient cystic fibrosis

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Asian Journal of Andrology 2023年第5期25卷 591-597页

作者： Anna O Sedova Maria I Shtaut Elizaveta E Bragina tatyana M Sorokina Galina v Shmarina Marina v Andreeva Lyubov E Kurilo Stanislav A Krasovskiy Aleksander v Polyakov vyacheslav B Chernykh Research Centre for Medical Genetics Russia Moscow 115522

We examined a cohort of 93 cystic fibrosis(CF)male patients who were pancreatic-sufficient(PS-CF;n=40)or pancreatic-insufficient(PI-CF;n=53).Complex semen examination was performed,including standard semen analysis,quantitative karyological analysis(QKA)of immature germ cells(IGCs),transmission electronic microscopy(TEM),biochemical analysis,and sperm DNA fragmentation by terminal deoxynucleotidyl transferase-mediated dUTP nickend labeling(TUNEL)*** was diagnosed in 83(89.2%)*** other 10(10.8%)patients were found to be nonazoospermic and showed various spermatological diagnoses(asthenozoospermia,n=2;asthenoteratozoospermia,n=3;oligoasthenozoospermia,n=1;oligoasthenoteratozoospermia,n=3;and normozoospermia,n=1)with no specific morphological *** was detected in 89.2%azoospermic and 30.0%nonazoospermic *** seminal pH(vealed in 2.4%azoospermic and 40.0%nonazoospermic semen *** signs of partial meiotic arrest at prophase I were found in 4 of 6 nonazoospermic patients examined by QKA of *** content of fructose and citrate was low in oligospermic and normal in nonoligospermic semen *** increased percentage(>30%)of spermatozoa with noncondensed(“immature”)chromatin was revealed in 2 of 6 nonazoospermic semen samples analyzed by TEM.

关键词： congenital bilateral agenesia/aplasia of vas deferens cystic fibrosis cystic fibrosis transmembrane conductance regulator gene semen spermatozoa

Clostridioides difficile infection in patients with nonalcoholic fatty liver disease-current status

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World Journal of Hepatology 2023年第2期15卷 208-215页

作者： Yana v Kiseleva Roman v Maslennikov Aida N Gadzhiakhmedova tatyana S Zharikova Dmitry v Kalinin Yury O Zharikov International School“Medicine of the Future” I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 119991Russia Department of Internal Medicine Gastroenterology and HepatologyI.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 119435Russia Department of Internal Medicine Сonsultative and Diagnostic Center No.2Moscow City Health DepartmentMoscow 107564Russia Department of Human Anatomy and Histology I.M.Sechenov First Moscow State Medical University(Sechenov University)Moscow 125009Russia Department of Pathology A.V.Vishnevsky National Medical Research Center of SurgeryMoscow 115093Russia

Nonalcoholic fatty liver disease(NAFLD)is the most common chronic liver disease,leading to fibrosis,cirrhosis and hepatocellular carcinoma and also associated with increased cardiovascular disease *** pathogenesis of NAFLD is not fully understood,although NAFLD is thought to be a hepatic form of metabolic *** is an increasing understanding of the role of microbiota disturbances in NAFLD pathogenesis,and as with many other conditions affecting the microbiota,NAFLD may be a novel risk factor for Clostridioides difficile(***)colonization(CDC)and *** infection(CDI).CDI is an emerging nosocomial disease,and community-acquired cases of infection are growing,probably due to an increase in CDC *** association of NAFLD with CDI has been shown in only 4 studies to date,three of which included less than 1000 patients,although the frequency of NAFLD in these studies was observed in almost 20%of the total patient *** data revealed that NAFLD is a risk factor for CDI development and,moreover,is a risk factor for intestinal complications of *** studies are needed to investigate this association and move forward CDC and CDI screening efforts for this group of patients.

关键词： Nonalcoholic fatty liver disease Clostridioides difficile Clostridioides difficile colonization Clostridioides difficile infection Minireview