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湖泊科学 2021年第3期33卷 667-674页

作者：梅雪英 vladimir Razlutskij Lars G.Rudstam Erik Jeppesen 唐雅丽张修峰刘正文安徽农业大学资源与环境学院合肥230036 国家科学与生产部白俄罗斯国家科学院生物能源科学-实践中心明斯克220047 康奈尔大学自然资源系纽约14853 奥尔胡斯大学生物科学系锡尔克堡8600 中东科技大学生物科学学院生态系统研究与应用中心/湖沼学实验室安卡拉06800 中国丹麦科研教育中心(SDC) 北京101408 暨南大学生态学系/水生生物研究所广州510632 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室南京210008

浅水水体存在着强烈的底栖-浮游生境耦合作用,耦合的结果决定着水生态系统关键特征.在缺少大型水生植物的浅水系统中,底栖藻类和浮游藻类对光照和营养盐的竞争是底栖-浮游生境耦合最为重要的生态过程之一,但该过程受到杂食性鱼类的影响... 详细信息

浅水水体存在着强烈的底栖-浮游生境耦合作用,耦合的结果决定着水生态系统关键特征.在缺少大型水生植物的浅水系统中,底栖藻类和浮游藻类对光照和营养盐的竞争是底栖-浮游生境耦合最为重要的生态过程之一,但该过程受到杂食性鱼类的影响.本文以浅水水体的底栖-浮游生境耦合作用为切入点,综述了杂食性鱼类对浅水水体底栖-浮游生境耦合作用的影响过程及机理.一般而言,杂食性鱼类有利于提高水层营养盐浓度,促进浮游藻类生长,降低水体透明度,不利于底栖藻类竞争,从而加速水体富营养化.但不同种类的杂食性鱼类(如底栖杂食性鱼类、偏植物性饵料的杂食性鱼类、偏动物性饵料的杂食性鱼类以及小型杂食性鱼类)因食性差异,对底栖-浮游生境耦合的影响机理不同,产生的生态环境效应各异;即便同一种杂食性鱼类也可因发育阶段不同对底栖-浮游生境耦合产生不同的影响.在人类活动、全球变暖以及富营养化等多重因子胁迫下杂食性鱼类在鱼类群落结构中的比例上升,因此,杂食性鱼类对水生态环境产生的影响深远、复杂,值得持续关注.

关键词：底栖-浮游生境耦合杂食性鱼类浅水水体浮游藻类底栖藻类

prospects for the use of olfactory mucosa cells in bioprinting for the treatment of spinal cord injuries

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World Journal of Clinical Cases 2023年第2期11卷 322-331页

作者： Olga Vladislavovna Stepanova Grigorii Andreevich Fursa Svetlana Sergeevna Andretsova Valentina Sergeevna Shishkina Anastasia Denisovna Voronova Andrey Viktorovich Chadin Ekaterina Konstantinovna Karsuntseva Igor vladimirovich Reshetov vladimir pavlovich Chekhonin Department of Basic and Applied Neurobiology V.P.Serbsky National Medical Research Center for Psychiatry and NarcologyMoscow 119034Russia Department of Neurohumoral and Immunological Research National Medical Research Center of CardiologyMoscow 121552Russia Department of Biology Moscow State UniversityMoscow 119991Russia Department of plastic Surgery I.M.Sechenov First Moscow State Medical UniversityMoscow 119435Russia Department of Medical Nanobiotechnologу N.I.Pirogov Russian National Research Medical UniversityMoscow 117997Russia

The review focuses on the most important areas of cell therapy for spinal cord *** mucosa cells are promising for *** these cells is safe for *** use of olfactory mucosa cells is effective in restoring motor function due to the remyelination and regeneration of axons after spinal cord *** cells express neurotrophic factors that play an important role in the functional recovery of nerve tissue after spinal cord *** addition,it is possible to increase the content of neurotrophic factors,at the site of injury,exogenously by the direct injection of neurotrophic factors or their delivery using gene *** advantages of olfactory mucosa cells,in combination with neurotrophic factors,open up wide possibilities for their application in threedimensional and four-dimensional bioprinting technology treating spinal cord injuries.

关键词： Olfactory mucosa cells Neurotrophic factors Cell therapy Injury of spinal cord Three-dimensional bioprinting Four-dimensional bioprinting

Structure and Thermoelectric properties of Nanostructured (Bi, Sb)<sub>2</sub>Te<sub>3</sub>(Review)

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Advances in Materials physics and Chemistry 2013年第2期3卷 119-132页

作者： Igor A. Drabkin vladimir V. Karataev vladimir B. Osvenski Aleksandr I. Sorokin Gennady I. pivovarov Natalie Yu. Tabachkova Department of dielectric and semiconductor materials National University of Science and Technology “MISIS” Moscow Russia Department of functional and structural materials Technological Institute of Superhard and New Carbon Materials Troitsk Russia Department of semiconductor materials Giredmet Ltd. Moscow Russia

The investigation of the structure and thermoelectric properties of nanostructured solid solutions (Bi, Sb)2Te3 p-type has been carried out. The samples were obtained by grinding of original compositions in a planetary ball mill and by spark plasma sintering (SpS). Initial powder has an average particle size of 10 - 12 nm according to transmission electron microscopy, and the size of the coherent scattering region (CSR) obtained by X-ray line broadening. During sintering at Ts = 250°C - 400°C, the grain size and CSR increased, which was associated with the processes of recrystallization. The maximum of size distribution of CSR shifts to larger sizes when Ts increases so that no broadening of X-ray lines at Ts = 400°C can take place. At higher Ts, the emergence of new nanograins is observed. The formation of nanograins is conditioned by reducing of quantity of the intrinsic point defects produced in the grinding of the source materials. The study of the electrical conductivity and the Hall effect in a single crystal allows to estimate the mean free path of the holes-L in the single crystal Bi0.5Sb1.5Te3 which at room temperature is 2 - 5 nm (it is much smaller than the dimensions of CSR in the samples). The method for evaluation of L in polycrystalline samples is proposed. At room temperature, L is close to the mean free path in single crystals. Scattering parameter holes in SpS samples obtained from the temperature dependence of the Seebeck coefficient are within the measurement error equal to the parameter of the scattering of holes in a single crystal. The figure of merit ZT of SpS samples as a function of composition and sintering temperature has been investigated. Maximum ZT, equal to 1.05 at room temperature, is obtained for the composition Bi0.4Sb1.6Te3 at Ts = 500°C and a pressure of 50 Mpa. The causes of an apparent increase in thermoelectric efficiency are discussed.

关键词： Solid Solutions (Bi Sb)2Te3 p-Type Nanostructure Spark plasma Sintering Conductivity Hall Effect Hole Free path Seebeck Coefficient Thermal Conductivity Figure of Merit

阿拉伯半乳聚糖对2型糖尿病大鼠肠道碱性磷酸酶、细菌内毒素和肠道中细胞因子的影响

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食品工业科技 2021年第14期42卷 334-340页

作者：王语聪谢智鑫张学艳赵太云 vladimir Ostronkov Lokhov Dmitrii 韩建春东北农业大学食品学院黑龙江哈尔滨150030 黑龙江省绿色食品科学研究院黑龙江哈尔滨150028 东北农业大学医院黑龙江哈尔滨150030 军科正源(北京)药物研究有限责任公司北京102200 俄罗斯阿美提斯公司俄罗斯阿穆尔州675000 俄罗斯基本元素公司俄罗斯阿穆尔州675000

本实验以低剂量腹腔注射链脲佐菌素(30 mg/kg)建立糖尿病大鼠模型,建模成功后,连续给予大鼠灌胃阿拉伯半乳聚糖(Arabinogalactan, AG)水溶液(100 mg/kg、500 mg/kg),测定大鼠体质量及血糖变化、粪便中肠道碱性磷酸酶(IAp)的活力及细菌... 详细信息

本实验以低剂量腹腔注射链脲佐菌素(30 mg/kg)建立糖尿病大鼠模型,建模成功后,连续给予大鼠灌胃阿拉伯半乳聚糖(Arabinogalactan, AG)水溶液(100 mg/kg、500 mg/kg),测定大鼠体质量及血糖变化、粪便中肠道碱性磷酸酶(IAp)的活力及细菌内毒素中脂多糖(LpS)的浓度变化,并通过MSD多因子方法检测肠道中细胞因子浓度的变化。结果表明,与模型组大鼠相比,AG剂量组空腹血糖浓度显著降低(pp活力显著增加(ppS浓度显著降低(pppp活力,降低LpS浓度,调控大鼠细胞因子,进而对2型糖尿病大鼠模型在免疫方面具有一定改善作用。

关键词：炎症糖尿病阿拉伯半乳聚糖肠碱性磷酸酶脂多糖

The Use of Geophysical Methods to Discriminate between Brine Layers and Freshwater Taliks in permafrost Regions

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冰川冻土 2004年第S1期26卷 301-309页

作者： Kenji Yoshikawa vladimir Romanovsky Nataria Duxbury Jerry Brown Alexandre Tsapin Water and Environmental Research Center Institute of Northern Engineering University of Alaska Fairbanks PO Box 755860 Fairbanks AK 99775-5860 USA Geophysical Institute University of Alaska Fairbanks 903 Koyukuk Drive P.O. Box 757320 Fairbanks AK 99775-7320 USA Jet propulsion Laboratory 4800 Oak Grove Drive MS 183-301 Pasadena CA 91109 USA International permafrost Association P.O. Box 7 Woods Hole MA 02543 USA

Direct current resistivity and ground penetrating radar surveys were employed to obtain the value of the resistivity and dielectric constant in the brine near the Barrow, Alaska. The geophysical surveys were undertaken together with the permafrost drilling program for the measuring of the ground temperature regime and for the core sampling. The sampled cores were measured for their physical and chemical properties in the laboratory under different temperature conditions ((-60) to (20) ℃). Laboratory results support field observations and led to the development of a technique for distinguishing freshwater taliks and brine layers in permafrost. These methods were also employed in freshwater taliks near Council, Alaska. The electrical resistivity is a powerful and sensitive parameter for brine detection. However, the resistivity is a less sensitive indicator of the soil type or water content under highly saline conditions. High frequency dielectric constant is an ideal second parameter for the indication of the soil type, liquid water content and other physical properties. The imaginary part of the dielectric constant and resistivity have a significant dependence upon salinity, i.e. upon freezing temperature. The ground temperature regime and the freezing point of the brine layer are important parameters for studying the electric properties of permafrost terrain.

关键词： geophysical method resistivity and dielectric constant talik Barrow,Alaska

Looking for Biological protectors against Adverse Health Effects of Some Nanoparticles that Can pollute Workplace and Ambient Air (A Summary of Authors’ Experimental Results)

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Journal of Environmental protection 2017年第8期8卷 844-866页

作者： Larisa I. privalova Boris A. Katsnelson Marina p. Sutunkova Ilzira A. Minigalieva vladimir B. Gurvich Oleg H. Makeyev vladimir Ya. Shur Irene E. Valamina Svetlana V. Klinova Ekaterina V. Shishkina Ilya V. Zubarev The Ekaterinburg Medical Research Center for prophylaxis and Health protection in Industrial Workers Ekaterinburg Russia The Institute of Natural Sciences The Ural Federal University Yekaterinburg Russia The Ural State Medical University Ekaterinburg Russia The Ural State Medical University Ekaterinburg Russia

Especially high health risks associated with impacts of metallic nanoparticles (Me-Nps) and their presence in the workplace and ambient air of not only the nano-industry but also of some long-existing traditional technologies make it necessary, along with keeping respective dangerous exposures as low as possible, to look for ways of increasing the organism’s resistance to them. Based on theoretical premises of such beneficial interference with toxicokinetics and toxicodynamics of Me-Nps developed by our research team and on understanding general and specific key mechanisms of different Me-Nps’ toxic action, we proposed several bioprotective complexes (BpCs) comprising mainly pectin, some vitamins, glutamate, glycine, N-acetylcysteine, omega-3 pUFA, and different essential trace elements. Results of our animal experiments with different Me-Nps showed that, against the background of such BpCs’ oral administration, the integral and specific toxicity of Me-Nps and even their genotoxicity can be markedly attenuated. Therefore we would recommend to further develop this vector of nano-toxicological research.

关键词： Nanoparticles Toxic metals Bioptotectors

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特纳综合征患者血清转化生长因子β的变化

北京大学学报（医学版） 2012年第5期44卷 720-724页

作者：周键 Sruthi AREpALLI Clara M.CHENG vladimir K.BAKALOV Carolyn A.BONDY Section on Epigenetics&Development Program on Developmental Endocrinology and GeneticsNational Institute of Child Health and Human DevelopmentNational Institutes of HealthBethesda

目的:观察转化生长因子β(transforming growth factor-beta,TGFβ)在特纳综合征(Turner syndrome,TS)患者血清中的变化及其与内分泌和心血管参数的关系。方法:选择TS患者和健康志愿者妇女(对照组)各40例,采用酶联免疫方法测定血清中的... 详细信息

目的:观察转化生长因子β(transforming growth factor-beta,TGFβ)在特纳综合征(Turner syndrome,TS)患者血清中的变化及其与内分泌和心血管参数的关系。方法:选择TS患者和健康志愿者妇女(对照组)各40例,采用酶联免疫方法测定血清中的TGFβ1、TGFβ2及转化生长因子受体(endoglin)。所有TS患者均行心血管系统磁共振和超声检查。结果:TS患者血清中TGFβ1和endoglin水平均高于对照组(pp<0.000 1)。TGFβ的改变与年龄、血压、血小板、甲状腺功能、体重指数或心血管疾病的分型无关。结论:TS患者血清中TGFβ显著性改变对疾病的研究具有重要意义。

关键词：特纳综合征转化生长因子β 心血管疾病 X染色体主动脉

Cell Surface Determinants Important for Biofilm-Based Solid Substrate Degradation

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Journal of Biomaterials and Nanobiotechnology 2013年第4期4卷 1-9页

作者： Jitka Dostalkova vladimir Jirku Gita prochazkova Lucie Kriklavova Tomas Lederer Tomas Branyik Institute of Chemical Technology in prague PragueCzech Republic Technical University of Liberec LiberecCzech Republic

The study links targeted cell surface characterization to the quantified capacity of cellulose degrading pseudomonas fluorescens cells to colonize a (similarly characterized) cellulosic carrier. The experiments were conducted to clarify the effect of cultivation conditions on the achieved state of this carrier colonization. The suggested approach seems to be sufficient to verify the right choice of cultivation medium as a major factor determining the binding complementarity between microbial cells and solid cellulose.

关键词： Cellulose Biodegradation Biofilm Formation Microbial Cell Adhesion pseudomonas fluorescens

Top Limit Characteristics of New Type Cascade pC on the Basis of Homogeneous Semiconductor

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Journal of Energy and power Engineering 2013年第10期7卷 1892-1897页

作者： Yuri D. Arbuzov vladimir M. Evdokimov Olga V. Shepovalova The All-Russian Research Institute for Electrification of Agriculture (GNU VIESH) Moscow 109456 Russia

A new type homogeneous planar pC （photoelectric converter） on the basis of multijunction semiconductor n＋-p-p＋-n＋-p-p＋-...-n＋-p-p＋ structure has been investigated. The entire structure is a cascade pC consisting of a number of elements of the structure--single pCs connected in series and illuminated by light that has consistently passed through the previous semiconductor layers. The theory of converter of both monochromatic and solar radiation has been developed and the limiting values of their photoelectric and power characteristics have been determined, including the optimal thickness and number of single pCs layered on a base pC, their spectral sensitivity, current-voltage characteristics and efficiency. The open-circuit voltage grows practically linearly with the number of elements in the cascade. The top efficiency limit for a certain optimal elements number reaches its maximum that exceeds considerably that of the base pC, especially in the range of low collecting coefficient of charge carriers in the base pC.

关键词： photoelectric converter multijunction monochromatic and solar radiation photoelectric and power characteristics.