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Assurance of the existence of a trans-boundary population of the snow leopard(Panthera uncia)at Tsagaanshuvuut-Tsagan-Shibetu SPA at the Mongolia-Russia border

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Integrative Zoology 2020年第3期15卷 224-231页

作者： Andrey D.POyARKOV Bariushaa MUNKHTSOG Miroslav P.KORABLEV Alexander N.KUKSIN dmitry y.alexandrov Maria D.CHISTOPOLOVA Jose Antonio HERNANDEZ-BLANCO Оchirjav MUNKHTOGTOKH Alexander S.KARNAUKHOV Namdag LKHAMSUREN Munkhtsog BAyARAA Rodney M.JACKSON Aishwarya MAHESHWARI Viatcheslav V.ROZHNOV A.N.Severtsov Institute of Ecology and Evolution Russian Academy of Sciences Institute of General and Experimental Biology Mongolian Academy of SciencesMongolia State Biosphere Reserve Ubsunur KotlovinaRussia WWF Mongolia Mongolia WWF Russia Russia State Biosphere Reserve Uvs NuurMongolia Irbis Mongolian center Mongolia Wildlife Institute College of Nature Conservation of the Beijing Forestry UniversityBeijingChina Snow Leopard Conservancy USA Banda University of Agriculture and Technology BandaUttar PradeshIndia

The existence of a trans-boundary population of the snow leopard(Panthera uncia)that inhabits the massifs of Tsagaanshuvuut(Mongolia)-Tsagan-Shibetu(Russia)was determined through non-invasive genetic analysis of scat samples and by studying the structure of territory use by a collared female *** genetic analysis included species identification of samples through sequencing of a fragment of the cytochrome b gene and individual identification using a panel of 8 *** home range of a female snow leopard marked with a satellite Global Positioning System(GPS)collar was represented by the minimum convex polygon method(MCP)100,the MCP 95 method and the fixed kernel 95 *** results revealed insignificant genetic differentiation between snow leopards that inhabit both massifs(minimal fixation index[FST]),and the data testify to the unity of the cross-border ***,5 common individuals were identified from Mongolian and Russian *** finding clearly shows that their home range includes territories of both *** addition,regular movement of a collared snow leopard in Mongolia and Russia confirmed the existence of a cross-border snow leopard *** data support that trans-boundary conservation is important for snow leopards in both *** conclude that it is crucial for Russia to study the northern range of snow leopards in Asia.

关键词： FST home range Panthera uncia snow leopard trans-boundary population

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International recognition of the Ilizarov bone reconstruction techniques: Current practice and research (dedicated to 100th birthday of G. A. Ilizarov)

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World Journal of Orthopedics 2021年第8期12卷 515-533页

作者： Tatiana A Malkova dmitry y Borzunov Department of Medical Information and Analysis Ilizarov National Medical Research Center for Traumatology and OrthopedicsKurgan 640014Russia Department of Traumatology and Orthopedics Ural State Medical UniversityEkaterinburg 620109Russia

The Ilizarov method is one of the current methods used in bone *** originated in the middle of the past century and comprises a number of bone reconstruction techniques executed with a ring external fixator developed by Ilizarov *** main merits are viable new bone formation through distraction osteogenesis,high union rates and functional use of the limb throughout the course of *** study of the phenomenon of distraction osteogenesis induced by tension stress with the Ilizarov apparatus was the impetus for advancement in bone reconstruction *** then,the original method has been used along with a number of its modifications developed due to emergence of new fixation devices and techniques of their application such as hexapod external fixators and motorized intramedullary lengthening *** gave rise to a relatively new orthopedic subspecialty termed“limb lengthening and reconstruction surgery”.Based on a comprehensive literature search,we summarized the recent clinical practice and research in bone reconstruction by the Ilizarov method with a special focus on its modification and recognition by the world orthopedic *** international influence of the Ilizarov method was reviewed in regard to the origin country of the authors and journal’s *** Ilizarov method and other techniques based on distraction osteogenesis have been used in many countries and on all populated *** proves its international significance and confirms the greatest contribution of Ilizarov GA to bone reconstruction surgery.

关键词： Ilizarov method Ilizarov apparatus Distraction osteogenesis Bone lengthening Bone defect Bone transport Arthrodesis

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Phylogenetic relationship and variation of alarm call traits of populations of red-cheeked ground squirrels(Spermophilus erythrogenys sensu lato)suggest taxonomic delineation

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Integrative Zoology 2019年第4期14卷 341-353页

作者： Vera A.MATROSOVA Anastasia D.IVANOVA Elena V.VOLODINA Ilya A.VOLODIN dmitry yu.alexandrov Olga V.SIBIRyAKOVA Oleg A.ERMAKOV Engelhardt Institute of Molecular Biology RASMoscowRussia Lomonosov Moscow State University MoscowRussia Moscow Zoo MoscowRussia Severtsov Institute of Ecology and Evolution RASMoscowRussia Department of Zoology and Ecology Penza State UniversityPenzaRussia

Distribution area and taxonomic borders within the species complex Spermophilus erythrogenys sensu lato remain *** evidence suggests that red-cheeked ground squirrels of Southeast Kazakhstan are remarkably different in terms of the acoustic structure of their alarm calls from the red-cheeked ground squirrels of the Kurgan region in *** this study,we analyzed the differences in the acoustic structure of the alarm call and mitochondrial DNA(complete control region,1005-1006 bp and complete cytochrome b gene,1140 bp)in 3 populations of red-cheeked ground squirrels(Tara,Altyn-Emel and Balkhash),all located within areas isolated by geographical barriers in Southeast *** found that the alarm call variables were similar between the 3 study populations and differed by the maximum fundamental frequency(8.46±0.75 kHz)from the values(5.62±0.06 kHz)reported for the red-cheeked ground squirrels from the Kurgan region of Rus*** in mtDNA control region was only 3%and variation in cytochrome b gene was only 2.5%.Phylogenetic trees based on cytochrome b gene polymorphism of 44 individuals from the study area and adjacent territories indicated 3 clades with high(98-100%)bootstrap support:“intermedius,”“brevicauda”and“iliensis”).We conclude that the 3 study populations in Southeast Kazakhstan belong to the clade intermedius and suggest a taxonomical revision of the species complex Spermophilus erythrogenys sensu lato,including analyses of nuclear DNA and alarm calls for populations of the brevicauda and iliensis clades.

关键词： alarm call control region cytochrome b mitochondrial DNA vocal communication

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Role of the Ilizarov non-free bone plasty in the management of long bone defects and nonunion: Problems solved and unsolved

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World Journal of Orthopedics 2020年第6期11卷 304-318页

作者： dmitry y Borzunov Sergei N Kolchin Tatiana A Malkova Department of Traumatology and Orthopedics Ural State Medical UniversityEkaterinburg 620109Russia Orthopaedic Department 4 Ilizarov National Medical Research Centre for Traumatology and OrthopaedicsKurgan 640014Russia Department for Medical Information and Analysis Ilizarov National Medical Research Centre for Traumatology and OrthopaedicsKurgan 640014Russia

BACKGROUND Ilizarov non-free bone plasty is a method of distraction osteogenesis using the Ilizarov apparatus for external fixation which originated in Russia and was disseminated across the world. It has been used in long bone defect and nonunion management along with free vascularized grafting and induced membrane technique. However, the shortcomings and problems of these methods still remain the issues which restrict their overall *** To study the recent available literature on the role of Ilizarov non-free bone plasty in long bone defect and nonunion management, its problems and the solutions to these problems in order to achieve better treatment *** Three databases(Pub Med, Scopus, and Web of Science) were searched for literature sources on distraction osteogenesis, free vascularized grafting and induced membrane technique used in long bone defect and nonunion treatment within a five-year period(2015-2019). Full-text clinical articles in the English language were selected for analysis only if they contained treatment results,complications and described large patient samples(not less than ten cases for congenital, post-tumor resection cases or rare conditions, and more than 20 cases for the rest). Case reports were *** Fifty full-text articles and reviews on distraction osteogenesis were ***-five clinical studies containing large series of patients treated with this method and problems with its outcome were analyzed. It was found that distraction osteogenesis techniques provide treatment for segmental bone defects and nonunion of the lower extremity in many clinical situations, especially in complex problems. The Ilizarov techniques treat the triad of problems simultaneously(bone loss, soft-tissue loss and infection). Management of tibial defects mostly utilizes the Ilizarov circular fixator. Monolateral fixators are preferable in the femur. The use of a ring fixator is recommended in patients with an infected tibial bone

关键词： Bone defect Ilizarov method Distraction osteogenesis Bone transport Bone nonunion Free vascularized grafts Induced membrane technique complication

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Single‑Photon Sources Based on Novel Color Centers in Silicon Carbide P–I–N Diodes: Combining Theory and Experiment

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Nano-Micro Letters 2021年第5期13卷 192-203页

作者： Igor A.Khramtsov dmitry yu.Fedyanin Laboratory of Nanooptics and Plasmonics Center for Photonics and 2D MaterialsMoscow Institute of Physics and Technology141700DolgoprudnyRussian Federation

Point defects in the crystal lattice of SiC,known as color centers,have recently emerged as one of the most promising single-photon emitters for non-classical light ***,the search for the best color center that satisfies all the requirements of practical applications has only just *** color centers in SiC have been recently discovered but not yet ***,it is extremely challenging to understand their optoelectronic properties and evaluate their potential for use in practical single-photon ***,we present a theoretical approach that explains the experiments on single-photon electroluminescence(SPEL)of novel color centers in SiC p-i-n diodes and gives the possibility to engineer highly efficient single-photon emitting diodes based on ***,we develop a novel method of determining the electron and hole capture cross sections by the color center from experimental measurements of the SPEL rate and second-order *** other methods,the developed approach uses the experimental results at the single defect level that can be easily obtained as soon as a single-color center is identified in the i-type region of the SiC p-i-n diode.

关键词： Color centers Electron capture cross section Single-photon emitting diodes Single-photon electroluminescence Charge state control

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Low-Energy Driven Ring-Opening Behavior of Benzocyclobutene Derivatives

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Chinese Journal of Chemistry 2023年第23期41卷 3238-3244页

作者： Ziwei yuan Quan Sun Jinchong Xiao Pingxia Zhang Konstantin S.Levchenko dmitry y.Demin Wenxin Fu Laboratory of Science and Technology on High-Tech Polymer Materials Institute of ChemistryChinese Academy of SciencesBeijing100190 China College of Chemistry and Material Science Hebei UniversityBaodingHebei071002 China University of Chinese Academy of Sciences Beijing100049 China MIREA — Russian Technological University Moscow119454 Russian Federation

It's urgent to develop benzocyclobutene(BCB)-based polymers with low curing temperature for temperature-sensitive applications such as liquid crystal displays(LCDs)and flexible ***,the effect of substituents on the ring-opening behavior of BCB derivatives was *** ring-opening activation energy barriers(ΔGA)of BCB derivatives with one or two substituents on the four-membered alkyl ring were systematically calculated using the B3LyP *** mono-and di-substituted BCBs adopted the conrotatory ring-opening process,obeying the Woodward-Hoffmann's Rules upon *** mono-/di-substituted BCBs exhibited 8.2%—69%lowerΔGA compared with BCB,attributed to the electronic effects of the *** BCBs with both electron-donating and electron-withdrawing groups,e.g.,1-NH_(2)-8-NO_(2)-BCB,demonstrated the lowestΔ*** addition,BCB derivatives with amide/ester/acyloxy group modified on C1 position were synthesized as model molecules,and their ring-opening temperature can be decreased by 20℃ compared to the unsubstituted one,also consistent with our calculation *** work combined theoretical calculation methods with experimental results to provide valuable insights into the design and synthesis of BCB derivatives and next-generation BCB functional packaging materials with low ring-opening temperature.

关键词： Benzocyclobutene Thermosets Monomers Low curing temperature Activation energy barrier Electronic effect Captodative effect

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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

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Ilizarov bone transport combined with the Masquelet technique for bone defects of various etiologies (preliminary results)

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World Journal of Orthopedics 2022年第3期13卷 278-288页

作者： dmitry y Borzunov Sergey N Kolchin Denis S Mokhovikov Tatiana A Malkova Department of Taumatology and Orthopedics Ural State Medical UniversityEkaterinburg 620109Russia Orthopaedic Department 4 Ilizarov National Medical Research Center for Traumatology and OrthopaedicsKurgan 640014Russia Department of Medical Information and Analysis Ilizarov National Medical Research Center for Traumatology and OrthopaedicsKurgan 640014Russia

BACKGROUND The Ilizarov bone transport(IBT)and the Masquelet induced membrane technique(IMT)have specific merits and shortcomings,but numerous studies have shown their efficacy in the management of extensive long-bone defects of various etiologies,including congenital *** their strong benefits seems a promising strategy to enhance bone regeneration and reduce the risk of refractures in the management of post-traumatic and congenital defects and nonunion that failed to respond to other *** To combine IBT and IMT for the management of severe tibial defects and pseudarthrosis,and present preliminary results of this technological *** Seven adults with post-traumatic tibial defects(subgroup A)and nine children(subgroup B)with congenital pseudarthrosis of the tibia(CPT)were treated with the combination of IMT and IBT after the failure of previous *** mean number of previous surgeries was 2.0±0.2 in subgroup A and 3.3±0.7 in subgroup *** 1 included Ilizarov frame placement and spacer introduction into the defect to generate the induced membrane which remained in the interfragmental gap after spacer *** 2 was an osteotomy and bone transport of the fragment through the tunnel in the induced membrane,its compression and docking for consolidation without *** outcomes were retrospectively studied after a mean follow-up of 20.8±2.7 mo in subgroup A and 25.3±2.3 mo in subgroup *** The“true defect”after resection was 13.3±1.7%in subgroup A and 31.0±3.0%in subgroup B relative to the contralateral *** completion of treatment,defects were filled by 75.4±10.6%and 34.6±4.2%,*** duration of external fixation was 397±9.2 and 270.1±16.3 d,including spacer retention time of 42.4±4.5 and 55.8±6.6 d,in subgroups A and B,*** infection was not *** complications were several cases of pin-tract infection and regenerate deformity in both *** regener

关键词： Ilizarov bone transport Induced membrane technique Post-traumatic tibial defect Congenital pseudarthrosis of the tibia Distraction osteogenesis Regeneration

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Wave propagation in solids capable of phase transitions

Wave propagation in solids capable of phase transitions

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23rd International Congress of Theoretical and Applied Mechanics

作者： dmitry A.Indeitsev dmitry y.Skubov dmitry S.Vavilov Laboratory of Micromechaics Institute of Problems of Mechanical EngineeringSt.PetersburgRussia

＜正＞The present paper deals with modeling of structural transformation in deformable bodies under the influence of external *** modeling is based on a non-monotone stress-strain *** problem is formulated for a simpl...

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Microscopic theory of exciton and trion polaritons in doped monolayers of transition metal dichalcogenides

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npj Computational Materials 2022年第1期8卷 891-900页

作者： yaroslav Vladimirovich Zhumagulov Salvatore Chiavazzo dmitry Romanovich Gulevich Vasili Perebeinos Ivan Andreevich Shelykh Oleksandr Kyriienko University of Regensburg Regensburg93040Germany Department of Physics and Engineering ITMO UniversitySt.Petersburg197101Russia Department of Physics and Astronomy University of ExeterStocker RoadExeterEX44QLUnited Kingdom Department of Electrical Engineering University at BuffaloThe State University of New YorkBuffaloNY14260USA Science Institute University of IcelandDunhagi-3IS-107ReykjavikIceland

We study a doped transition metal dichalcogenide (TMDC) monolayer in an optical *** the microscopic theory,we simulate spectra of quasiparticles emerging due to the interaction of material excitations and a high-finesse optical mode,providing a comprehensive analysis of optical spectra as a function of Fermi energy and predicting several modes in the strong light-matter coupling *** addition to exciton-polaritons and trion-polaritons,we report polaritonic modes that become bright due to the interaction of excitons with free *** large doping,we reveal strongly coupled modes corresponding to excited trions that hybridize with a cavity *** also demonstrate that the increase of carrier concentration can change the nature of the system’s ground state from the dark to the bright *** results offer a unified description of polaritonic modes in a wide range of free electron densities.

关键词： polar transition theory

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