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The identification of individuals with hatchery and natural origin in a mixed sample of Amur River chum salmon by Otolith microchemistry

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Aquaculture and Fisheries 2023年第3期8卷 341-350页

作者： Pavel B.Mikheev Denis V.Kotsyuk Elena V.Podorozhnyuk Vsesolod N.Koshelev Atbkyh I.Nikiforov Tatiana A.Sheina Alexey Yu.Puzik Mikhail A.Baklanov Khabarovsk Branch of the federal state Budget Scientific institution“Russian federal Research Institute of Fisheries and Oceanography”(“KhabarovskNIRO”) Khabarovsk680038Russia federal state Budget educational institution of higher education“Perm state National Research University”(PGNIU) Perm614990Russia Moscow state Institute(University)of International Relations Ministry of Foreign Affairs of the Russian FederationMoscow117454Russia

We estimated the proportion of hatchery and natural fall spawning chum salmon returning to the Amur River using chemical markers specific to hatchery-origin fry.We used otolith microchemistry technique to identify fish with artificial origin among returning spawners.First,we found that juveniles of artificial origin had higher values of the Sr:Ca molar ratio of the otoliths’edge zone compared with juveniles of natural origin,what can be related to the use of rearing feed produced from raw materials of marine origin rich in strontium.Then we observed that most of the spawners from Anyuisky Hatchery and from the Amur River mouth at the start of the spawning migration has also the higher value of Sr:Ca molar ratio of the juvenile zone of otoliths.Also,adults with higher values of the Sr:Ca molar ratio are characterized by a skewed right in the peak of the age distribution.Both,the age structure and phenological shift in the time of spawning migration of individuals with higher value of the used chemical marker corresponds to results of studies on hatchery-produced chum salmon completed at different parts on Northern Pacific.The results of this study will be used in the management of Amur fall chum salmon fisheries,and also demonstrates the necessity of the development of specific measures for increasing the survival of juvenile anadromous salmonids released at large rivers and exposed to prolonged freshwater migration to the ocean.As a further application of the methodology,we plan to identify the markers specific to each of the hatcheries and main spawning tributaries belonging to Amur River catchments.This will be an important step in the evaluation of the contribution of different stocks in mixed fisheries and also in the estimation of the effect of hatchery releases on naturally spawning stocks of Amur fall chum.Following to,our results may indicate the applicability of this approach for the determination of artificial-origin fish in a mixed sample of the Amur fall chum salmon.

关键词： Otolith microchemistry LA ICP-MS Chum salmon Identification of origin in a mixed sample Hatchery releases

Supercritical Fluid Media in Challenges of Substance and Material Dispersion

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Journal of Thermal Science 2019年第3期28卷 519-546页

作者： KHAIRUTDINOV Vener GUMEROV Farid KHABRIEV Ilnar federal state Budgetary educational institution of higher education Kazan National Research Technological University

The paper deals with the problem of material dispersion using supercritical fluid media. At the same time, emphasis is made on modifications(SAS, GAS, SEDS and ASES) of the supercritical fluid anti-solvent method of dispersion. The results of SAS method implementation for dispersion of pure polycarbonate and polycarbonate doped with "CdSe/CdS-core/shell" quantum dots(carried out in the pressure range of 8.0-25.0 MPa at temperatures of 313.15 K and 358.15 K) are submitted. The range of the operating parameters has been established through the example of pure polycarbonate dispersion, which provides the production of nanoparticles with the size range of 10-100 nm. Encapsulation of Cd Se/Cd S quantum dots into polycarbonate using the SAS method has no effect on optical properties of the encapsulated quantum dots. The results of paracetamol dispersion using the SEDS method are presented. The effect of operating conditions of the paracetamol dispersion process on morphology of the obtained product is described. Co-dispersion of ethylene–vinyl acetate copolymers and low-density polyethylene mixtures by SEDS method has been carried out under pressures of 8.0-25.0 MPa at temperatures of 313 K, 323 K, and 333 K. The comparison of melting and crystallization between the resulting copolymer mixtures and mixtures with the same composition obtained by mixing in the liquid melt, has shown that implementation of SEDS results in an increase of crystallinity degree of the polymer mixtures.

关键词： supercritical fluid media supercritical fluid anti-solvent method dispersion polycarbonate paracetamol ethylene-vinyl acetate copolymers

Potential traces of earthquakes in the ancient city of Kytaia, Kerch Peninsula, Crimea

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Geodesy and Geodynamics 2019年第4期10卷 331-338页

作者： E.A.Molev A.M.Korzhenkov A.N.Ovsyuchenko A.S.Larkov federal state autonomous educational institution of higher education N.I.Lobachevsky State UniversityNizhny NovgorodRussian Federation Institute of Physics of the Earth RASMoscowRussian Federation

In this paper, the authors studied the traces of destruction in the fortress walls and houses of the Bosporan city of Kytaia. The study of this city has been ongoing since 1970. Over the past time, numerous damages have been identified at different sites of the ancient settlement. In the article, an attempt is made to compare some of them with the results of earthquakes on the Bosporus, about which the data of ancient authors were preserved.

关键词： The Bosporan city of Kytaia Traces of destruction Ancient earthquakes

Potential contribution of pedicle screw design to loosening rate in patients with degenerative diseases of the lumbar spine:An observational study

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World Journal of Orthopedics 2021年第5期12卷 310-319页

作者： Andrey Bokov Svetlana Pavlova Anatoliy Bulkin Alexandr Aleynik Sergey Mlyavykh Department of Oncology and Neurosurgery Federal State Budgetary Educational Institution of Higher Education“Privolzhsky Research Medical University”of the Ministry of Health of the Russian FederationNizhniy Novgorod 603000Russia

BACKGROUND The majority of published data report the results of biomechanical tests of various design pedicle screw performance.The clinical relevance and relative contribution of screw design to instrumentation stability have been insufficiently studied.AIM To estimate the contribution of screw design to rate of pedicle screw loosening in patients with degenerative diseases of the lumbar spine.METHODS This study is a prospective evaluation of 175 patients with degenerative diseases and instability of the lumbar spine segments.Participants underwent spinal instrumentation employing pedicle screws with posterior only or transforaminal interbody fusion.Follow-up was for 18 mo.Patients with signs of pedicle screw loosening on computed tomography were registered;logistic regression analysis was used to identify the factors that influenced the rate of loosening.RESULTS Parameters included in the analysis were screw geometry,type of thread,external and internal screw diameter and helical pitch,bone density in Hounsfield units,number of levels fused,instrumentation without anterior support,laminectomy,and unilateral and bilateral total facet joint resection.The rate of screw loosening decreased with the increment in outer diameter,decrease in core diameter and helical pitch.The rate of screw loosening correlated positively with the number of fused levels and decreasing bone density.Bilateral facet joint removal significantly favored pedicle screw loosening.The influence of other factors was insignificant.CONCLUSION Screw parameters had a significant impact on the loosening rate along with bone quality characteristics,the number of levels fused and the extensiveness of decompression.The significance of the influence of screw parameters was comparable to those of patient-and surgery-related factors.Pedicle screw loosening was influenced by helical pitch,inner and outer diameter,but screw geometry and thread type were insignificant factors.

关键词： Degenerative diseases Lumbar spine Pedicle screw design Pedicle screw loosening

Technological monitoring of subgrade construction on high-temperature permafrost

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Research in Cold and Arid Regions 2015年第4期7卷 316-322页

作者： Svyatoslav Ya.Lutskiy Taisia V.Shepitko Alexander M.Cherkasov federal state-Funded educational institution of higher Vocational education Moscow State University of Railway Engineering MGUPS (MIIT)

Three stages of complex technological monitoring for the increase of high-temperature-permafrost soil bearing capacity are described. The feasibility of process monitoring to improve the targeted strength properties of subgrade bases on frozen soils is demonstrated. The rationale for the necessity of predictive modeling of freeze-thaw actions during the subgrade construction period is provided.

关键词： permafrost soils subgrade monitoring bearing capacity complex technology

Hydrogel scaffolds based on blood plasma cryoprecipitate and collagen derived from various sources: Structural, mechanical and biological characteristics

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Bioactive Materials 2019年第1期4卷 334-345页

作者： Marfa N.Egorikhina Diana Ya Aleynik Yulia P.Rubtsova Grigory Ya Levin Irina N.Charykova Ludmila L.Semenycheva Marina L.Bugrova Evgeniy A.Zakharychev federal state Budgetary educational institution of higher education«Privolzhsky Research Medical University»of the Ministry of Health of the Russian Federation Nizhny NovgorodRussian Federation Lobachevsky state University of Nizhny Novgorod Nizhny NovgorodRussian Federation

At present there is a growing need for tissue engineering products,including the products of scaffold-technologies.Biopolymer hydrogel scaffolds have a number of advantages and are increasingly being used to provide means of cell transfer for therapeutic treatments and for inducing tissue regeneration.This work presents original hydrogel biopolymer scaffolds based on a blood plasma cryoprecipitate and collagen and formed under conditions of enzymatic hydrolysis.Two differently originated collagens were used for the scaffold formation.During this work the structural and mechanical characteristics of the scaffold were studied.It was found that,depending on the origin of collagen,scaffolds possess differences in their structural and mechanical characteristics.Both types of hydrogel scaffolds have good biocompatibility and provide conditions that maintain the three-dimensional growth of adipose tissue stem cells.Hence,scaffolds based on such a blood plasma cryoprecipitate and collagen have good prospects as cell carriers and can be widely used in regenerative medicine.

关键词： Biopolymers Blood plasma cryoprecipitate Collagen Hydrogel scaffolds Stem cells

Dynamics of annual growth of Pinus sylvestris on industrial wastes of mining companies

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Journal of Forestry Research 2021年第4期32卷 1385-1393页

作者： Svetlana Bakhtina Yulai Yanbaev Aleksey Kulagin Nina Redkina Ilgam Masalimov Shamil Fayzrakhmanov Scientific and educational Center Federal State Budgetary Educational Institution of Higher EducationBashkir State Agrarian University50-Letia Octyabrya Str.34UfaRussia 450001 Department of Forestry and Landscape Design Federal State Budgetary Educational Establishment of Higher EducationBashkir State Agrarian University50-Letia Octyabrya Str.34UfaRussia 450001 Laboratory of Forestry Ufa Institute of BiologyUfa Research Center of Russian Academy of SciencesProspect Octyabrya69UfaRussia 450054 Department of Ecology and Life Safety Federal State Budgetary Educational Institution of Higher EducationBashkir State UniversityZaki Validi Str.32UfaRussia 450076 Department of Mechanics and Engineering Graphics Federal State Budgetary Educational Establishment of Higher EducationBashkir State Agrarian University50-Letia Octyabrya Str.34UfaRussia 450001 Department of Mechanics and Machine Design Federal State Budgetary Educational Establishment of Higher EducationBashkir State Agrarian University50-Letia Octyabrya Str.34UfaRussia 450001

The development of the mining industry has led to the appearance in many parts of the world of vast technogenic territories from which toxic heavy metals enter the environment and food chains.Physical,chemical,and biological methods of cleaning industrial land due to technological complexity and hi gh cost are relatively little used on a large scale.Natural forest overgrowth of mining sites and the removal of heavy metals by woody plants can be an effective form of recovery.Therefore,the study of this process is of significant scientific and practical interest.The analysis of the annual growth in height and width of the annual rings of the stem of Scots pine(Pinus sylvestris L.) in 2004-2019 was made on the territory of the Uchalinsky mining and processing plant(South Ural,Russia) contaminated with heavy metals.Relatively hi gh concentrations of copper and zinc were found in soils,roots,bark,young shoots,comparable to exceeding the maximum allowable concentrations.Despite the spatial uniformity of the heavy metal content in the stands,the tree samples significantly differed in terms of annual growth.Results suggest that the lack of nutrients and not stress from exposure to heavy metals is the main reason for relatively low growth rates on slopes of industrial wastes.It was confirmed by studying the annual growth in height of the undergrowth in habitats with different soil cover conservation.The data prove the relatively high potential of Scots pine for the natural recovery of industrial lands polluted with heavy metals by mining enterprises.

关键词： Annual growth Pinus sylvestris Heavy metals Phytoremediation

Using a needle for sacrospinous ligament fixation for pelvic organ prolapse based on the Miyazaki technique

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Gynecology and Obstetrics Clinical Medicine 2022年第2期2卷 82-85页

作者： Ilnur Irekovich Musin Alfiya Galimovna Yashchuk Valentin Nikolaevich Pavlov Jianliu Wang Xiuli Sun Raisa Arkadevna Naftulovich Elena Mikhailovna Popova federal state Budgetary educational institution of higher education Bashkir state Medical University of the Ministry of Health of the Russian Federation Lenina 3UfaRepublic of Bashkortostan450008Russia Department of Obstetrics and Gynecology Peking University People's Hospital11th Xizhimen South StreetXicheng DistrictBeijing100044China

Background:Approximately 7%of all women will require surgery to correct pelvic organ prolapse during their lives.Of these,approximately 10%-13%will require another operation within 5 years due to recurrence of the disease.Increases in life expectancy and elderly individuals with estrogen deficiencies will mean higher rates of pelvic organ prolapse,significantly reducing the quality of life for millions of people.This study introduces technologies that can help treat pelvic prolapse while reducing the rate of recurrence.Methods:This paper outlines how to properly perform sacrospinous ligament fixation using the Miyazaki technique.Results:A needle was used to successfully perform a sacrospinous ligament fixation using Miyazaki's technique.Conclusions:Considering the Food and Drug Administration’s 2019 decision to permit surgeries with native tissue,this method can be used with sacrospinous ligament fixation as the primary treatment option for pelvic organ prolapse.

关键词： Pelvic organ prolapse Sacrospinous ligament fixation Sacrocolpopexy Pelvic surgery

Composite technology of earthwork construction on taliks in cryolithic zones

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Research in Cold and Arid Regions 2013年第5期5卷 577-581页

作者： Svyatoslav Ya.Lutskiy Taisiya V.Shepitko Alexander M.Cherkasov federal state-Funded educational institution of higher Vocational education Moscow State University of Railway Engineering (MGUPS (MIIT)) Institute of Rail Track Construction and Structures Permafrost Research Laboratory Federal State-Funded Educational Institution of Higher Vocational EducationMoscow State University of Railway Engineering (MGUPS (MIIT))

This paper reviews construction and technological solutions for roadbeds in talik areas of permafrost soil, and proposes an integrated technology for prevention and elimination of taliks during construction periods. It also summarizes the expe- rience of process regulation scheduling and soil conditions monitoring during construction.

关键词： integrated technology permafrost soil taliks technological adjustment