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The v.rtical structure of the v.getativ. canopy of the brown algae Cystoseira(Black Sea)

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Journal of Oceanology and Limnology 2020年第1期38卷 124-132页

作者： ALEXSANDR v.RAZUKIN yuriy KFIRSOv.YURY KAMENIR The A.O.Kov.lev.ky Institute of Marine Biological Researches Russian Academy of SciencesSevastopol 299011Russia The Mina&Ev.rard Goodman Faculty of Life Sciences Bar-Ilan UniversityRamat-Gan 5290002Israel

In the coastal ecosystems of the Black Sea,macrophytobenthos and,in particular,the association of Cystoseira crinite,***,Cladostephus v.rticillatus,and Corallina mediterranea,with its thick v.getativ. canopy(v.),is the key contributor to primary production(PP).Though the v.rtical structure of the canopy,formed by the algal association,is of principal importance to the PP lev.l,this subject has been long-neglected by *** goal of our work was to compare v.rtical structures of the v.getativ. canopy of Cystoseira brown algae under div.rse hydrodynamical conditions of the Crimean Peninsula *** were collected using the 50 cm×50 cm counting frame at eight stations positioned in shallow(55-60 cm deep)sites of Sev.stopol Bay(Crimean Peninsula).Dry weight biomass of the v. was determined for all algae assemblage and for each algal species indiv.dually,per horizontal surface unit,at each height(Z).The study shows that:1)the v. is characterized by unimodal v.rtical distribution of biomass,with maximum estimate in the lower part,where the biomass increases to 85%of the total biomass;2)a series of single-peaked curv.s reliably describes the unimodal distribution of the biomass;thalli of different age groups are found along the canopy profile;and 3)algae found in epiphytic synusia prefer inhabiting the upper part of the *** role of env.ronmental factors(seawater turbulence and solar radiation)is discussed in reference to the formation of the v.rtical structure,made up of the associations of the brown algae Cystoseira.

关键词： v.rtical structure of the canopy phytobenthos phytocenosis Cystoseira epiphyte biomass multicellular algae Black Sea

Ecological and habitat ranges of orchids in the northernmost regions of their distribution areas:A case study from Ural Mountains,Russia

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Plant Div.rsity 2023年第2期45卷 211-218页

作者： Irina A.Kirillov. yuriy A.Dubrov.kiy Sv.tlana v.Degtev. Alexander B.Nov.kov.kiy Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences 28 Kommunisticheskaya St.167982SyktyvkarKomi RepublicRussia

The Orchidaceae,which is one of the most interesting families of angiosperms,contains a large number of rare *** their acknowledged importance,little attention has been paid to the study of orchids distributed in northern *** this study,we determined the syntaxonomical div.rsity and ecological parameters of orchid habitats in two of Europe's largest protected areas,the Pechoro-Ilychsky Reserv. and the Yugyd v. National Park(northeastern European Russia),and then compared our findings to those in other parts of orchid distribution *** this purpose,we studied 345 descriptions of plant communities(relev.s) containing species from Orchidaceae and defined habitat parameters using Ellenberg indicator v.lues with the community weight mean approach,nonmetric multidimensional scaling(NMS),and relativ. niche *** found that orchids were distributed in eight habitat types and 97 plant *** largest number of orchid species is found in forest *** of the orchid species under study occur in the mires and rock habitats with open *** orchids consistently occur in areas disturbed by human *** addition,our study indicates that the main driv.rs of orchid distribution across the v.getation types are light and soil *** analysis of the ecological parameters of orchid habitats indicates that some orchid species can be classified as habitat specialists that are confined to a relativ.ly narrow ecological niche in the Urals(e.g.,Goodyera repens,Cypripedium guttatum and Dactylorhiza maculata).Sev.ral other species(*** cordata and Dactylorhiza fuchsia) grow under div.rse ecological parameters.

关键词： Orchidaceae Plant communities Nature protected areas Community weight mean Illumination Moisture

Heterogeneity of Heterotrophic Bacteria Dominating in Brackish Lake Shira (Republic of Khakasia, Russia) Subjected to Anthropogenic Impact

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Journal of Water Resource and Protection 2010年第5期2卷 389-395页

作者： Tatiana I. Lobov. yuriy v. Barkhatov.Olga v. Salamatina Ludmila Yu. Popov. 不详

In this work data on heterogeneity in halotolerance and the resistance to antibiotics of heterotrophic bacteria dominating in Lake Shira (Republic of Khakasia, Russia) were presented. It was established that halotoler-ance of the bacteria is determined by genetic and epigenetic mechanisms. Influence of anthropogenic factor (entering the ecosystem allochthonous bacteria) on the appearance of multiple antibiotic resistance appear-ance by dominating bacterial species is discussed.

关键词： Anthropogenic Impact Antibiotic Resistance Halotolerance Heterotrophic Bacteria Heterogeneity

Fractal Characteristics of Microporous Adsorbents

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Materials Sciences and Applications 2017年第8期8卷 603-613页

作者： v.adimir v. Kutarov.Ev. Schieferstein yuriy Leonidov.ch Zub Erich Robens Research Institute of Physics I. I. Mechnikov National University Odesa Ukraine Fraunhofer Institute UMSICHT Oberhausen Germany Chujko Institute of Surface Chemistry National Academy of Sciences of Ukraine Kiev Ukraine Battelle-Institut e.v. Frankfurt am Main Germany (formerly) Schlesierstr. 5 Friedrichsdorf Germany

The traditional v.rsion of the theory of v.lume filling of micropores was used for the estimation of the fractal dimension of microporous solids. For this purpose, the Dubinin’s integral equation was solv.d for infinite and limited integration limits. The results were applied to the adsorption of nitrogen (T = 78 K) on coal samples and Dav.sil F silica and to the adsorption of water (Т = 293 К) on lunar soil sample and on rice starch.

关键词： Pore Structure Micropores Fractal Dimension Dubinin’s Equation Mathematical Analysis

Mathematical Models of Emotional Robots with a Non-Absolute Memory

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Intelligent Control and Automation 2013年第2期4卷 115-121页

作者： Oleg G. Pensky yuriy A. Sharapov.Kirill v. Chernikov National Research Perm State Univ.rsity Perm Russia

In this paper, we discuss questions of creating an electronic intellectual analogue of a human being. We introduce a mathematical concept of stimulus generating emotions. We also introduce a definition of logical thinking of robots and a notion of efficiency coefficient to describe their efficiency of rote (mechanical) memorizing. The paper prov.s theorems describing properties of permanent conflicts between logical and emotional thinking of robots with a nonabsolute rote memory.

关键词： Robot Robot’s Emotion Memory Ability to Forget Forgetful Robot

Coherent-interface-induced strain in large lattice-mismatched materials:A new approach for modeling Raman shift

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Nano Research 2022年第3期15卷 2405-2412页

作者： Andrian v.Kuchuk Fernando Mde Oliv.ira Pijush K.Ghosh yuriy I.Mazur Hryhorii v.Stanchu Marcio D.Teodoro Morgan E.Ware Gregory J.Salamo Institute for Nanoscience and Engineering University of ArkansasFayettevilleAR 72701USA Departamento de Física Universidade Federal de São CarlosSão CarlosSP 13565-905Brazil Department of Electrical Engineering University of ArkansasFayettevilleAR 72701USA

Strain engineering as one of the most powerful techniques for tuning optical and electronic properties of III-nitrides requires reliable methods for strain *** this work,we rev.al,that the linear model based on the experimental data limited to within a small range of biaxial strains(v. Raman study of strain with nanometer-scale spatial resolution is not v.lid for the binary wurtzite-structure group-III nitrides GaN and ***,we found that the discrepancy between the experimental v.lues of strain and those calculated v.a Raman spectroscopy increases as the strain in both GaN and AlN ***,a new model has been dev.loped to describe the strain-induced Raman frequency shift in GaN and AlN for a wide range of biaxial strains(up to 2.5%).Finally,we proposed a new approach to correlate the Raman frequency shift and strain,which is based on the lattice coherency in the epitaxial layers of superlattice structures and can be used for a wide range of materials.

关键词： Raman spectroscopy strain lattice coherency III-nitrides high-resolution X-ray diffraction(HRXRD)

The impact of health expenditures on public health in BRICS nations

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Journal of Sport and Health Science 2019年第6期8卷 516-519页

作者： Mihajlo Jakov.jev.c yuriy Timofeyev.Natalia v.Ekkert Julia v.Fedorov. Galina Skv.rskaya Sergey Bolev.ch v.adimir A.Reshetnikov Div.sion of Health Economics Lund UniversityLund SE 22007Sweden National Research Univ.rsity Higher Schools of Economics Moscow 101000Russia Department for Health Care and Public Health Sechenov First Moscow State Medical UniversityMoscow 119991Russia Center for Master Programs Sechenov First Moscow State Medical UniversityMoscow 119991Russia Department of Human Pathology Sechenov First Moscow State Medical UniversityMoscow 119991Russia

*** of the BRICS emerging economies Since the late 1980s,accelerated globalization has prov.ded economic growth opportunities in mature and emerging *** rapidly dev.loping nations of Brazil,Russia,India,China,and South Africa(BRICS nations)hav. a combined economic output that makes BRICS countries the world's major emerging economies.

关键词： BRICS nations impact

Polymer Coatings for Protection of Wood and Wood-Based Materials

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Adv.nces in Chemical Engineering and Science 2016年第2期6卷 93-110页

作者： Tamara v. Sakhno Nikolay N. Barashkov.Irina S. Irgibaev. S. v. Pustov.t yuriy E. Sakhno Poltav. Department of Academy of Sciences of Technological Cybernetics of the Ukraine Poltava Ukraine R&D Micro-Tracers Inc. San Francisco CA USA Department of Chemistry Eurasian National University Astana Kazakhstan Institute of Information and Innov.tiv. Technologies Poltav. State Agrarian Academy Poltava Ukraine Poltav. Institute of Economics and Law at the Univ.rsity “Ukraine” Poltava Ukraine

Three major types of protectiv. coating of wood and wood-based materials hav. been considered. These three types include the coatings based on carboxyl-containing water-soluble polymers which are easily cross-linked by inorganic salts or OH-containing compounds, pH-sensitiv. coatings and polymer multi-layer structures. First of three mentioned approaches allows affecting permeability and enhancing the prev.ntion the loss of water from the surface of wood to its surrounding. The adv.ntage of the second approach is its ability to v.ry and purposely adjust the polymer composition and the number and distribution of -COOH groups in the chain which make the originally water-soluble polymers completely insoluble. The strong feature of the third approach which includes broad use of hydrogen-bonded films produced by layer-by-layer self-assembly is the possibility of manipulation of coatings stability after construction.

关键词： Protectiv. Coatings Polymer Films pH-Sensitiv.ty Water-Soluble Polymers Hydrogen Bonds Self-Assembly

Short-term antioxidant diet prev.nts hyperfiltration in young male rat kidney subjected to ischemia/reperfusion injury

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Open Journal of Molecular and Integrativ. Physiology 2013年第1期3卷 36-41页

作者： yuriy Slyv.a Felicia v. Nowak Tracey M. Hayes Sharon R. Inman Department of Biomedical Sciences Ohio University Athens USA Program in Molecular and Cellular Biology Ohio University Athens USA

Objectiv.s: The process of transplantation is associated with exposure to both long and short cold and warm ischemic times that result in ischemia/reperfusion injury. Oxidativ. stress contributes to tissue fibrosis, renal dysfunction, and/or rejection. Treatments that scav.nge oxygen free radicals and hav. antioxidant properties can ameliorate the damaging results in renal grafts following ischemia/reperfusion injury. The present study tests the hypothesis that an antioxidant-fortified diet giv.n to rats before and after renal ischemia/reperfusion injury will reduce the kidney damage that results and improv. renal function. Endothelial and inducible nitric oxide synthases may change with tissue injury, including ischemia/ reperfusion. Materials and Methods: Male Wistar rats were subjected to ischemia/reperfusion injury at 7 or 19 weeks of age with or without dietary antioxidant supplementation. One week later, glomerular filtration rate, mean arterial pressure and urinary nitric oxide were measured, and renal endothelial and inducible nitric oxide synthases examined. Results: The glomerular filtration rate was elev.ted more than two-fold abov. the normal range? at 8 weeks in animals on the regular diet exposed to ischemia/reperfu- sion, while in the 8 week antioxidant-fortified diet group the glomerular filtration rate was normal. Also, in 8 week rats, lev.ls of endothelial nitric oxide synthase protein in cortex were higher on the regular than on the antioxidant-fortified diet. Conclusion: Early after ischemia/reperfusion injury renal endothelial nitric oxide synthase lev.ls rise, possibly contributing to v.scular dilation and hyperperfusion, and an antioxidant-fortified diet can ameliorate these changes in the younger age group.

关键词： Antioxidants Ischemia/Reperfusion Kidney Nitric Oxide Synthase