Envir. Sci. sites. 02-18-2011 – 03-03-2011
Environmental Science Web-sites.
** KEY WORDS:
Self-purification, Aquatic, Ecosystems, Theory, Ecological Studies, Hazards, Solutions, Vol.16, 12, Ecosystems, Organisms, Innovations, water quality, biota, conference, nanoparticles
http://www.scribd.com/doc/49941553/; Экология, науки о жизни: инновации / серия: Ecological Studies, Hazards, Solutions. Volume 16. Экосистемы, организмы, инновации-12. Труды научной конференции (23 июня 2010 г., Москва) и другие материалы. М.: МАКС Пресс, 2010. - 112 с. Отв. редакторы С. А. Остроумов, С.В.Котелевцев, И.К.Тодераш, О.М.Горшкова; Editors: S.A.Ostroumov, S.V.Kotelevtsev, I.K. Toderas, O.M.Gorshkova; Cборник содержит труды двенадцатой конференции “Экосистемы, организмы, инновации-12”, которая прошла 23 июня 2010 г. в Московском университете, и другие научные и учебно-методические материалы. Конференция была посвящена 25-летию книги А.В.Яблокова и С.А.Остроумова «Уровни охраны живой природы». Тематика материалов, представленных в сборнике, охватывает пресноводные и морские экосистемы и организмы. Акцентируются научные инновации, важные и перспективные для решения практических проблем, для экономического роста, для экологической безопасности. Авторы представленных работ - сотрудники различных кафедр и факультетов МГУ, ученые других университетов и институтов России, Армении, Индии, Италии, Молдовы, Украины, США, и других стран. Сборник представляет интерес для специалистов в области экологии, гидробиологии, океанологии, зоологии, ихтиологии, ботаники, микробиологии, охраны окружающей среды, а также для преподавателей высшей школы. Ecology, Life Sciences: Innovations /series: Ecological Studies, Hazards, Solutions. Volume 16. Proceedings of the scientific conference «Ecosystems, Organisms, Innovations – 12», (June 23, 2010, Moscow), and other materials. Moscow, MAX Press, 2010. – 112 p. Volume 16 of the series includes the proceedings of the 12th conference ‘Ecosystems, Organisms, Innovations-12’ that took place at Moscow State University, 23 June 2010, and some other scientific and educational materials. The conference was dedicated to 25th anniversary of the book: A.V.Yablokov, S.A.Ostroumov ‘Levels of Conservation of Living Nature’. The materials cover freshwater and marine ecosystems and organisms. The authors represent various departments of Moscow State University and other institutions and universities of Russia, Armenia, India, Italy, Moldova, Ukraine, the U.S.A., and other countries. The proceedings are of interest to scholars in the fields of ecology, limnology, oceanography, zoology, ichthyology, botany, microbiology, environmental science, as well as to university professors and educators. The name of the new awardee of the honorary title Aquatic Ecologist of Year (Dr. A.V.Vershinin) is published. ББК28.080:28.082; Э40; © Составление и редактура – С.А.Остроумов, 2010; Издание включено в международные базы данных (the Ulrich’s databases) продолжающихся изданий. The series is included in the Ulrich’s databases of reviewed serial editions. Indexed/abstracted in: Referativnyi Journal VINITI. Реферируется в ВИНИТИ. Размещается в Интернете. См. сайты http://www.portalus.ru/; scipeople.ru; scipeople.com; researchgate; и др.
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Московский государственный университет имени М. В. Ломоносова Межведомственная ихтиологическая комиссия Московское общество испытателей природы Секция гидробиологии и ихтиологии Московское отделение МСЭЭ ОТКРЫТИЕ НОВОГО ВИДА ОПАСНЫХ АНТРОПОГЕННЫХ ВОЗДЕЙСТВИЙ В ЭКОЛОГИИ ЖИВОТНЫХ И БИОСФЕРЕ: ИНГИБИРОВАНИЕ ФИЛЬТРАЦИОННОЙ АКТИВНОСТИ МОЛЛЮСКОВ ПОВЕРХНОСТНО-АКТИВНЫМИ ВЕЩЕСТВАМИ Москва МАКС-Пресс 2008 1
Рецензенты: доктор биологических наук профессор В.В. Ермаков; доктор биологических наук С.В. Ко
Рецензенты: доктор биологических наук профессор В.В. Ермаков; доктор биологических наук С.В. Ко
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Scientists of these institutions cited works by S.A.Ostroumov. Updated March 1, 2011.
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Edit_cited.update.2011.Feb. Addition to list of publications that cited works of the Fulbright Award winner.60 pages. http://www.scribd.com/doc/49712549
_cited.update.2011.Feb. Addition to list of publications that cited works of the Fulbright Award winner.60 pages. http://www.scribd.com/doc/49712549 in English, Russian.
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Rev.Adv.Mater.Sci. 22(2009) 74-80 Corresponding author: T. M. Hammad, e-mail: Talaat@chem.byu.edu BINDING AGENT AFFECT ON THE STRUCTURAL AND OPTICAL PROPERTIES OF ZnO NANOPARTICLES
‑ !" Received: June 09, 2009 Abstract. In this study, different concentrations of hydroxyl-footed methylresorcinarene (HFMR) are selected to bind zinc acetate in order to investigate its role on the formation of ZnO nanoparticles. Accordingly, the size of produced ZnO nanoparticles are affected by the existence of the binding agent as observed by XRD and TEM analysis. The particle size increases from 28 to 43 nm with increasing amounts of binding agent. The SEM and TEM micrographs show hexagonal morphology. The UV-vis absorption and PL spectra show that the absorption edge shifts to red.
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EditAggregation of Titanium Dioxide Nanoparticles: Role of a Fulvic Acid. R U T E F . D O M I N G O S
Aggregation of Titanium Dioxide Nanoparticles: Role of a Fulvic Acid R U T E F . D O M I N G O S , * , † N A T H A L I E T U F E N K J I , ‡ A N D K E V I N J . W I L K I N S O N † D´epartement de Chimie, Universit´e de Montr´eal, 1282-1286; ENVIRONMENTAL SCIENCE & TECHNOLOGY / VOL. 43, NO. 5, 2009; The increasing use of nanomaterials in consumer products has led to increased concerns about their potential environmental and health impacts. To better understand the transport, fate, and behavior of nanoparticles in aquatic systems, it is essential to understand their interactions with different components of natural waters including natural organic matter over a broad range of physicochemical conditions. Fluorescence correlation spectroscopy was used to determine the diffusion coefficients of TiO2 nanoparticles having a nominal size of 5 nm. The effects of a various concentrations of the Suwannee River Fulvic Acid (SRFA) and the roles of pH and ionic strength were evaluated. Aggregation of the bare TiO2 nanoparticles increased for pH values near the zero point of charge. At any given pH, an increase in ionic strength generally resulted in increased aggregation. Furthermore, conditions which favored adsorption of the SRFA resulted in less aggregation of the TiO2 nanoparticles, presumably due to increased steric repulsion. Under the conditions studied here, nanoparticle dispersions were often stable for environmentally relevant conditions of SRFA, pH, and ionic strength, suggesting that in the natural environment, TiO2 dispersion might occur to a greater extent than expected. Introduction Research activities associated with nanotechnology have grown to the point where it is estimated that nanoparticle emissions to the environment will increase drastically in the near future (1). One widely used nanoparticle found in a large number of consumer products is titanium dioxide, TiO2. Nano-TiO2 is produced on a large scale for applications in photocatalysts, solar cells, biomaterials,memorydevices, and environmental catalysts (2-4). Given the small size, high mobility, and high reactivity of thenano-TiO2 and its potential for release to the natural environment, it is important to evaluate the environmental risks associated with the mobility and persistence of this nanomaterial. The aggregation of nanoparticles will strongly impact their reactivity (5), nanoparticle-cellular interactions, and toxicity (6). Furthermore, the state of aggregation of the nanoparticles in the natural environment is unlikely to be predicted from simple laboratory experiments that do not take into account the presence of natural organic matter (e.g., humic substances and microbial exudates) or environmentally relevant conditions ofpHand ionic strength (1). For example, it is well-known that humic substances can significantly modify the surface properties (e.g., electric charge, size, chemical nature of the exposed surface sites) of natural aquatic colloids, significantly influencing their transport, often due to increased electrostatic repulsion (7, 8). Only limited data are presently available on the aqueous stability of manufactured nanoparticles (fullerenes (9, 10), carbon nanotubes (11), alginate coated hematite (12), and iron oxides 13, 14) in the environment. In these studies, organic matter appeared either to increase the stability or solubility of the nanoparticles. Recently, TiO2 aggregation was measured in the absence (15) and presence of natural organic acids (16). Stable TiO2 suspensions predominated atpHvalues that were far from the point of zero charge, pHpzc, and the presence of oxalic and adipic acid destabilized the nanoparticle suspensions. To our knowledge, no studies have followed TiO2 aggregation in the presence of the environmentally ubiquitous humic substances. In this paper, diffusion coefficients were measured for TiO2 nanoparticles that were exposed to (simulated) natur
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EditBinding of Functionalized Paramagnetic Nanoparticles to Bacterial Lipopolysaccharides And DNA .Bromberg L.
Binding of Functionalized Paramagnetic Nanoparticles to Bacterial Lipopolysaccharides And DNA Lev Bromberg,† Emily P. Chang,† Carmen Alvarez-Lorenzo,‡ Beatriz Magarinos,§ Angel Concheiro,‡ and T. Alan Hatton*,† Langmuir 2010, 26(11), 8829–8835 †Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, ‡Departamento de Farmacia y Tecnologia Farmaceutica, and §Departamento de Microbiologia y Parasitologia, Facultad de Biologia, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain Received December 6, 2009. Revised Manuscript Received January 28, 2010 Magnetite and metallic cobalt-based nanoparticles with sizes ranging from 10 to 300 nm and surface-functionalized with poly(hexamethylene biguanide) (PHMBG) are introduced as capable lipopolysaccharide (LPS)-sequestering agents. The nanoparticles efficiently bind to whole E. coli cells and can be used to separate the cells effectively from suspension using a magnet. A fluorescence dye displacement assay shows strong affinities of the nanoparticles for lipid A, the glycolipid component of LPS responsible for septic shock. The particle-lipid A affinity is of the same order of magnitude or higher than that of polymyxin B. The affinity of smaller (<50 nm) magnetite particles modified with PHMBGto lipidAis several-fold higher than that of their larger counterparts (>100 nm) due to their higher surface area to volume ratio. The nanoparticles possess high saturation capacity for double-stranded λDNAfrom E. coli, with which particle-polyelectrolyte complexes are formed. The PHMBG-modified nanoparticles are potent bactericides, inhibiting E. coli viability and growth at concentrations at e10 μg/mL.
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TOXICOLOGICAL SCIENCES 100(1), 303–315 (2007) doi:10.1093/toxsci/kfm217 Advance Access publication August 19, 2007 Adsorbed Proteins Influence the Biological Activity and Molecular Targeting of Nanomaterials Debamitra Dutta,* Shanmugavelayutham Kamakshi Sundaram,† Justin Gary Teeguarden,‡ Brian Joseph Riley,† Leonard Sheldon Fifield,† Jon Morrell Jacobs,§ Shane Raymond Addleman,{ George Alan Kaysen,k Brij Mohan Moudgil,* and Thomas Joseph Weberkj,1 *Particle Engineering Research Center and the Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611; †Advanced Processing and Applications Group; ‡Biological Monitoring and Modeling; §Process Science and Engineering, Environmental Technology Directorate; {Biological Systems Analysis and Mass Spectrometry, Pacific Northwest National Laboratory, Richland, Washington 99354; kDivision of Nephrology, Department of Medicine and the Department of Biochemistry and Molecular Medicine, University of California, Davis, California 95616, and the Department of Veteran’s Affairs, Northern California Health Care System, Mather, California 95655; and kjCell Biology and Biochemistry, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354 Received May 11, 2007; accepted August 9, 2007 The possible combination of specific physicochemical properties operating at unique sites of action within cells and tissues has led to considerable uncertainty surrounding nanomaterial toxic potential. We have investigated the importance of proteins adsorbed onto the surface of two distinct classes of nanomaterials (single-walled carbon nanotubes [SWCNTs]; 10-nm amorphous silica) in guiding nanomaterial uptake or toxicity in the RAW 264.7 macrophage–like model. Albumin was identified as the major fetal bovine or human serum/plasma protein adsorbed onto SWCNTs, while a distinct protein adsorption profile was observed when plasma from the Nagase analbuminemic rat was used. Damaged or structurally altered albumin is rapidly cleared from systemic circulation by scavenger receptors. We observed that SWCNTs inhibited the induction of cyclooxygenase-2 (Cox-2) by lipopolysaccharide (LPS; 1 ng/ml, 6 h) and this anti-inflammatory response was inhibited by fucoidan (scavenger receptor antagonist). Fucoidan also reduced the uptake of fluorescent SWCNTs (Alexa647). Precoating SWCNTs with a nonionic surfactant (Pluronic F127) inhibited albumin adsorption and anti-inflammatory properties. Albumin-coated SWCNTs reduced LPS-mediated Cox-2 induction under serum-free conditions. SWCNTs did not reduce binding of LPSAlexa488 to RAW 264.7 cells. The profile of proteins adsorbed onto amorphous silica particles (50–1000 nm) was qualitatively different, relative to SWCNTs, and precoating amorphous silica with Pluronic F127 dramatically reduced the adsorption of serum proteins and toxicity. Collectively, these observations suggest an important role for adsorbed proteins in modulating the uptake and toxicity of SWCNTs and nano-sized amorphous silica. Key Words:
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EditS. A. Ostroumov. Biocontrol of Water Quality: Multifunctional Role of Biota in Water Self-Purification...10Rus.J.gen.Chem.biocon.water.Q.inen.Fulltext
http://www.scribd.com/doc/49131150; S. A. Ostroumov. Biocontrol of Water Quality: Multifunctional Role of Biota in Water Self-Purification.- Russian Journal of General Chemistry, 2010, Vol. 80, No. 13, 2010, pp. 2754–2761. (ISSN 1070-3632, © Pleiades Publishing Ltd., 2010) [Laboratory of Physico-Chemistry of Biomembranes, Faculty of Biology, Moscow State University, Moscow, 119234 Russia] Abstract : The experimental data analysis, concepts, and generalizations in this article provide the fundamental elements of a new qualitative theory of biocontrol of water quality in a systematized form. The theory covers water self-purification in freshwater and marine ecosystems. The theory is supported by the results of the author’s experimental studies of the effects exerted by some chemical pollutants including synthetic surfactants, detergents, and other xenobiotics on aquatic organisms. The theory provides a basis for remediation of polluted aquatic ecosystems including purification of water bodies and streams, and briefly present the qualitative theory of the self-purification mechanism of aquatic ecosystems, phytoremediation and other types of technologies. Received November 30, 2009. DOI: 10.1134/S1070363210130086. [Original Russian Text © S.A. Ostroumov, 2010, published in Ekologicheskaya Khimiya, 2010, Vol. 19, No. 4, pp. 197–204].
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EditCriteria of Ecological Hazards Due to Anthropogenic Effects on the Biota: Searching for a System. Evaluating environmental hazard from man-made impact.2000DBS.371.Criteria.of.Ecological.hazards(DANBIO2. http://www.scribd.com/doc/49088234
http://www.scribd.com/doc/49088234; Dokl Biol Sci 2000, v.371 Criteria of Ecological Hazards Due to Anthropogenic Effects on the Biota: Searching for a System. Abstract: The currently accepted system of criteria of evaluating ecological hazards from man-made chemicals is vulnerable to criticism. In this paper, a fundamentally new concept of a more objective system of criteria for evaluating the ecological hazard from man-made impact is proposed. The author suggested to assess man-made impacts (including effects of pollutants and xenobiotics) on biota according to the following four levels of disturbance in biological and ecological systems: (1) the level of individual and population responses; (2) the level of aggregated responses; (3) the level of stability and integrity of the ecosystem; (4) the level of contributions of the ecosystem into biospheric processes. An example is given of how to apply the proposed system of criteria to the analysis of concrete experimental data. To exemplify the efficiency of the proposed system of criteria, it is shown how to use it to analyze new data on effects of a non-ionic surfactant on water filtering by bivalves. It is concluded that the proposed system of criteria will be helpful in better assessing ecological hazards from anthropogenic effects on biota including effects of man-made chemicals polluting ecosystems. Published in Russian: Doklady Akademii Nauk, 2000, Vol. 371. No. P.844-846;
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http://www.scribd.com/doc/49069997;
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http://www.scribd.com/doc/49069991; DBS 2000; the.concept.of.Aquatic.biota.as.Labile... component...self-purification
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http://www.scribd.com/doc/49069985;2000.DBS.373.Biocatalysis.of.Matter.transfer.in.Microcosm.is.Inhibited.by.Contaminants
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http://www.scribd.com/doc/49069975; 2001. DBS. vol. 377. Inhibitory.analysis
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http://www.scribd.com/doc/49069767; Dokl Biol Sci, 2000, Criteria; Hazards of man-made effects; new system, new principles; S.A.Ostroumov
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http://www.scribd.com/doc/49065634/Danbio52-2001v380p847-E-2level-synergism; Dokl Biol Sci, 2001, v.380, p.847; two-level synergism; S.A.Ostroumov
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EditResponses of Unio tumidus to Mixed Chemical Preparations and the Hazard of Synecological Summation of Anthropogenic Effects; Danbio51.2001v380.E.U.tumidus
http://www.scribd.com/doc/49065621; Responses of Unio tumidus to Mixed Chemical Preparations and the Hazard of Synecological Summation of Anthropogenic Effects. Doklady Biological Sciences, 2001, vol.380. Unio tumidus. S.A.Ostroumov; mollusks, molluscs, Unionidae, Unio, tumidus, anthropogenic, impact, aquatic, organisms, assessment,, bioassays, surfactant, chemical, pollution, detergents, ecosystem, ecosystems, services, ecotoxicology, chemistry, environmental, toxicology, environment,, protection, filter-feeders, freshwater, functioning, hazards, improving, water, quality, inhibitors, invertebrates, management, effects, man-made, new , plankton, pollutants, synthetic,, substances, safety, biology, aquatic, benthos, bioassay, biosphere, bivalves, bivalvia, , surfactants, environmental, chemistry, environment,, protection, filter-feeders, freshwater, functioning, hazards, hydrosphere, inhibitors, invertebrates, management, effects, mussels, new,, plankton, pollutants, synthetic, organisms, substances, biosphere, hydrosphere, management, man-made,, effects, biota, pollutants, synthetic, substances, safety, sustainability, contaminants, xenobiotics, negative, ecology, ecological, concepts, conceptualization, priorities, preventing, chemico-biotic, interactions, hydroecology, filter-feeding, filtration, S.A. Ostroumov, Sergei,
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http://www.scribd.com/doc/49065604; Doklady Biological Sciences, 2001, vol.379. Pellets of mollusks in biogeochemical flows of C, N, P, Si, and Al. S.A.Ostroumov
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http://www.scribd.com/doc/49065596; Doklady Biological Sciences, 2001, v. 379. Imbalance of factors providing control of unicellular plankton populations exposed to anthropogenic impact. S.A.Ostroumov
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http://www.scribd.com/doc/49065593; Doklady Biological Sciences, 2001, v.378,Effects of amphiphilic chemicals on marine organisms filter-feeders. S.A.Ostroumov
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EditSystem of principles for conservation of the biogeocenotic function and the biodiversity of filter-feeders. S.A.Ostroumov. Danbio23.02v383n5.E.conserv Filter Feeders
http://www.scribd.com/doc/49065586;Dokl Biol Sci 2002, v.383.System of principles for conservation of the biogeocenotic function and the biodiversity of filter-feeders. S.A.Ostroumov
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http://www.scribd.com/doc/49065580; Dokl Biol Sci 2002. New definitions of the concepts and terms ecosystem and biogeocenosis. S.A.Ostroumov
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http://www.scribd.com/doc/49065567. Dokl Biol Sci 2001, v.377. Inhibitory analysis of regulatory interactions in trophic webs. S.A.Ostroumov
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EditThe Synecological Approach to the Problem of Eutrophication. Doklady Biological Sciences, Vol. 381, 2001, pp. 559–562. Danbio6_2001v381n5.E.eutrophication
http://www.scribd.com/doc/49065550/Danbio6-2001v381n5-E-eutrophication; Doklady Biological Sciences, Vol. 381, 2001, pp. 559–562. Translated from Doklady Akademii Nauk, Vol. 381, No. 5, 2001, pp. 709–712. Original Russian Text Copyright © 2001 by Ostroumov. The Synecological Approach to the Problem of Eutrophication S. A. Ostroumov Presented by Academician M.E. Vinogradov. In recent years, the importance of the problem of eutrophication of various aquatic ecosystems has been progressively increasing [1–3].
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EditAn aquatic ecosystem: a large scale diversified bioreactor with a water self-purificaiton function. S.A. Ostroumov. Danbio5 2000v374.E.bioreactor
http://www.scribd.com/doc/49065542; Dokl Biol Sci 2000. 374. An aquatic ecosystem: a large scale diversified bioreactor with a water self-purificaiton function. S.A. Ostroumov
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http://www.scribd.com/doc/49065530http://www.scribd.com/doc/49065530; Dokl Biol Sci 2000, v. 373. Biocatalysis of the matter transfer in a microcosm is inhibited by a contaminant: an effect of a surfactant on Lymnaea stagnalis. S. A. Ostroumov
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Doklady Biological Sciences, Vol. 372, 2000, pp. 286–289. Translated from Doklady Akademii Nauk, Vol. 372, No. 2, 2000, pp. 279–282. Original Russian Text Copyright © 2000 by Ostroumov. GENERAL BIOLOGY The Concept of Aquatic Biota as a Labile and Vulnerable Component of the Water Self-Purification System S. A. Ostroumov Presented by Academician V.N. Bol’shakov June 1, 1999 Received June 24, 1999 Self-purification of water is a complex process including physical, chemical, and biological compon
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Doklady Biological Sciences, Vol. 371, 2000, pp. 204–206. Translated from Doklady Akademii Nauk, Vol. 371, No. 6, 2000, pp. 844–846. Original Russian Text Copyright © 2000 by Ostroumov. GENERAL BIOLOGY Criteria of Ecological Hazards Due to Anthropogenic Effects on the Biota: Searching for a System S. A. Ostroumov Presented by Academician V.N. Bol’shakov November 27, 1998 Received March 19, 1999 Among the multiplicity of characteristics of anthropogenic factors affecting the biota [1–3], resea
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Doklady Biological Sciences, Vol. 382, 2002, pp. 18–21. Translated from Doklady Akademii Nauk, Vol. 382, No. 1, 2002, pp. 138–141. Original Russian Text Copyright © 2002 by Ostroumov. GENERAL BIOLOGY Biodiversity Protection and Quality of Water: The Role of Feedbacks in Ecosystems S. A. Ostroumov Presented by Academician D.S. Pavlov April 15, 2001 Received May 16, 2001 V.I. Vernadsky pointed out that “the living matter in the biosphere plays a fundamental and active role, and in exercising it
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Doklady Biological Sciences, Vol. 396, 2004, pp. 206–211. Translated from Doklady Akademii Nauk, Vol. 396, No. 1, 2004, pp. 136–141. Original Russian Text Copyright © 2004 by Ostroumov. GENERAL BIOLOGY. On the Biotic Self-purification of Aquatic Ecosystems: Elements of the Theory. S. A. Ostroumov. Presented by Academician M.E. Vinogradov. November 12, 2003 Received November 17, 2003. This paper generalizes and systematizes the basics of the theory of the multifunctional role that the biota plays i
