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Intracellular phosphorus pool of the cyanobacterium spirulina platensis / A. Ya. Bolsunovsk, S. V. Kosinenko // Mikrobiologiya. - 2000. - Vol. 69, Is. 1. - С. 135-137 . - ISSN 0026-3656
Кл.слова (ненормированные):
phosphorus -- article -- biomass -- Cyanobacterium -- growth, development and aging -- metabolism -- Biomass -- Cyanobacteria -- Phosphorus
Аннотация: An intracellular phosphorus pool in a monoculture of the cyanobacterium Spirulina platensis was assessed using radioactive and nonradioactive phosphorus. The derived dependence of specific growth rate on the intracellular content of mineral phosphorus can be presented in the form of the Droop equation. It was found that the stage of replenishment of the intracellular phosphorus pool may affect the phosphorus turnover estimation in aquatic environments from the results of short-term measurements of phosphorus uptake.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsk, A.Ya.; Kosinenko, S.V.

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Estimation of transfer of technogenic radionuclides in food chains of the Yenisei river / E. A. Trofimova, T. A. Zotina, A. Y. Bolsunovskii // Contemporary Problems of Ecology. - 2012. - Vol. 5, Is. 4. - P365-370, DOI 10.1134/S1995425512040142 . - ISSN 1995-4255
Кл.слова (ненормированные):
burbot -- dace -- grayling -- pike -- water moss -- zoobenthos -- bioaccumulation -- food chain -- gadoid -- gamma ray radiation -- macrophyte -- moss -- radioactive pollution -- radionuclide -- salmonid -- trophic level -- zoobenthos -- Russian Federation -- Yenisei River -- Bryophyta -- Esocidae -- Lota
Аннотация: The efficiency of the transfer of gamma-emitting radionuclides in food chains, including macrophytes, zoobenthos, and bentho- and ichthyophagist fish, was estimated in the radiation-polluted region of the Yenisei river. Significant differences in the efficiency of the transfer of natural and technogenic radionuclides between components of different trophic levels were revealed. Substantial species-related differences in the accumulation of radionuclides in ichthyophagist fish from food were revealed. В© 2012 Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Trofimova, E.A.; Zotina, T.A.; Bolsunovskii, A.Y.

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Sediments of the Yenisei River: Monitoring of radionuclide levels and estimation of sedimentation rates / A. Bolsunovsky, D. Dementyev // IAHS-AISH Publication. - 2010. - Vol. 337: Symposium on Sediment Dynamics for a Changing Future (14 June 2010 through 18 June 2010, Warsaw) Conference code: 84220. - P143-148
Кл.слова (ненормированные):
Artificial and natural radionuclides -- Dating methods -- River sediments -- Sedimentation rates -- Yenisei river -- Dating methods -- Natural radionuclides -- River sediments -- Sedimentation rates -- Yenisei river -- Anoxic sediments -- Cesium -- Europium -- Lead -- Nuclear energy -- Nuclear weapons -- Plutonium -- Radioisotopes -- River pollution -- Sedimentation -- Sedimentology -- Strontium -- Uranium -- Rivers -- cesium isotope -- cobalt isotope -- europium -- fluvial deposit -- plutonium isotope -- radioactive pollution -- radioactive waste -- radionuclide -- sampling -- sediment core -- sediment pollution -- sedimentation rate -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River
Аннотация: The Yenisei River, one of the largest rivers in the world, is contaminated with artificial radionuclides released by a Russian nuclear facility producing weapon-grade plutonium, which has been in operation for many years. Examination of Yenisei River sediment samples revealed the presence of artificial radionuclides typical of radioactive discharge from the Mining-and-Chemical- Combine (MCC) nuclear facility: isotopes of europium ( 152Eu, 154Eu, and 155Eu), caesium ( 137Cs and 134Cs), 60Co, 90Sr, and transuranium elements. Maximum radionuclide concentrations in sediments remained high as far as 240 km downstream of the MCC. In sediment cores collected upstream of the MCC, ?-spectrometric measurements registered only one artificial radionuclide, 137Cs, with a maximum activity of approx. 8 Bq kg -1 dry mass. Sediments of the Yenisei River also contain natural radionuclides. Sedimentation rates in several sections of the Yenisei River were determined using, different approaches: the 210Pb dating method and the ratios of artificial radionuclides - 137Cs/ 60Co and 152Eu/ 154Eu. With increasing distance downstream of the city of Krasnoyarsk, sedimentation rates increased from 0.88 cm year -1 to 1.30-1.51 cm year -1. Copyright В© 2010 IAHS Press.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Dementyev, D.

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Intracellular phosphorus pool of the cyanobacterium spirulina platensis / A. Ya. Bolsunovskii, S. V. Kosinenko // Microbiology. - 2000. - Vol. 69, Is. 1. - P116-118 . - ISSN 0026-2617
Аннотация: An intracellular phosphorus pool in a monoculture of the cyanobacterium Spirulina platensis was assessed using radioactive and nonradioactive phosphorus. The derived dependence of specific growth rate on the intracellular content of mineral phosphorus can be presented in the form of the Droop equation. It was found that the stage of replenishment of the intracellular phosphorus pool may affect the phosphorus turnover estimation in aquatic environments from the results of short-term measurements of phosphorus uptake. В© 2000 MAIK "Nauka/Interperiodica".

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovskii, A.Ya.; Kosinenko, S.V.

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Production of purified polyhydroxyalkanoates (PHAs) for applications in contact with blood / V. I. Sevastianov [et al.] // Journal of Biomaterials Science, Polymer Edition. - 2003. - Vol. 14, Is. 10. - P1029-1042, DOI 10.1163/156856203769231547 . - ISSN 0920-5063
Кл.слова (ненормированные):
?-hydroxy acids -- Endotoxins -- Hemocompatibility -- Poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) -- Polyhydroxyalkanoates (PHAs) -- Polyhydroxybutyrate (PHB) -- bacterium lipopolysaccharide -- carbon -- complement -- copolymer -- hydroxyacid -- long chain fatty acid -- poly(3 hydroxybutyric acid) -- polyhydroxyalkanoic acid -- valeric acid derivative -- adult -- article -- biofilm -- biotechnology -- blood analysis -- blood clotting -- blood compatibility -- cell function -- chemical analysis -- chemical composition -- complement activation -- concentration (parameters) -- controlled study -- gas chromatography -- hemostasis -- human -- human cell -- mass spectrometry -- micromorphology -- nonhuman -- priority journal -- purification -- quantitative analysis -- sampling -- synthesis -- thrombocyte adhesion -- Wautersia eutropha -- Biocompatible Materials -- Blood -- Blood Coagulation Tests -- Chromatography, Gas -- Complement Activation -- Cupriavidus necator -- Fatty Acids -- Humans -- Platelet Adhesiveness -- Polyesters -- Surface Properties
Аннотация: Samples of olyhydroxyalkanoates (PHAs), polyhydroxybutyrate (PHB) and copolymers poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) with 4 and 18 mol% hydroxyvalerate, synthesized by the bacteria Ralstonia eutropha B5786, were investigated. PHA films in contact with blood did not activate the hemostasis system at the level of cell response, but they did activate the coagulation system and the complement reaction. To detect biologically-active components in the PHAs, a detailed analysis of the composition of the polymers was conducted. Gas chromatography-mass spectrometry revealed long-chain fatty acids (FAs) in the tested PHAs. Their total concentration in the polymer ranged from tenths of mol% to 2-3 mol%, depending on the purification method. C16:0 constituted the largest proportion, up to 70%. Of the long-chain hydroxy acids, only ?-OH-C14:0 was detected and it did not exceed 0.06 mol%. The analysis of the hemocompatibility properties of the PHAs purified by a specialized procedure, including the quantitative and morphological estimation of platelets adherent to the surface of polymer films, the plasma recalcification time and complement activation studies, indicated that PHB and PHBV can be used in contact with blood. It has been found out that the lipopolysaccharides of bacteria producing PHAs, which contain mostly long-chain hydroxy acids, can be the factor activating the hemostasis systems. Thus, the technology of PHA purification must satisfy rather stringent specific requirements.

Scopus
Держатели документа:
Inst. of Transplantol. Artif. Organs, Russian Ministry of Health, Shchukinskaya 1, 123182 Moscow, Russian Federation
Inst. of Biophys. of Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sevastianov, V.I.; Perova, N.V.; Shishatskaya, E.I.; Kalacheva, G.S.; Volova, T.G.

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Quantitative estimation of dragonfly role in transfer of essential polyunsaturated fatty acids from aquatic to terrestrial ecosystems / M. I. Gladyshev [et al.] // Doklady Biochemistry and Biophysics. - 2011. - Vol. 438, Is. 1. - P141-143, DOI 10.1134/S1607672911030094 . - ISSN 1607-6729
Кл.слова (ненормированные):
unsaturated fatty acid -- animal -- article -- chemistry -- ecosystem -- female -- insect -- male -- Animals -- Ecosystem -- Fatty Acids, Unsaturated -- Female -- Insects -- Male -- Anisoptera (dragonflies)

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Animal Systematics and Ecology, Siberian Branch, Russian Academy of Sciences, ul. Frunze 11, Novosibirsk 630091, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Kharitonov, A.Y.; Popova, O.N.; Sushchik, N.N.; Makhutova, O.N.; Kalacheva, G.S.

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Estimation of periphytic microalgae gross primary production with DCMU-fluorescence method in Yenisei River (Siberia, Russia) / V. I. Kolmakov [et al.] // Journal of Applied Phycology. - 2008. - Vol. 20, Is. 3. - P289-297, DOI 10.1007/s10811-007-9246-8 . - ISSN 0921-8971
Кл.слова (ненормированные):
Chlorophyll fluorescence -- Gross primary production -- Periphytic microalgae
Аннотация: Periphyton (epilithon) gross primary production (GPP) was estimated using the DCMU-fluorescence method in the Yenisei River. In the unshaded littoral zone, chlorophyll a concentration (Chl a) and GPP value varied from 0.83 to 973.74 mg m-2and 2-304,425 O2 m-2 day -1 (0.64-95 133 mg C m-2 day-1), respectively. Positive significant correlation (r=0.8) between daily GPP and periphyton Chl a was found. Average ratio GPP:Chl a for periphyton was 36.36 mg C mg Chl a m -2 day-1. The obtained GPP values for the Yenisei River have a high significant correlation with values predicted by a conventional empirical model for stream periphyton. We concluded that the DCMU-fluorescence method can be successfully used for measuring of gross primary production of stream phytoperiphyton at least as another useful tool for such studies. В© 2007 Springer Science+Business Media B.V.

Scopus
Держатели документа:
Siberian Federal University, Svobodny av.79, Krasnoyarsk 660041, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State Agricultural University, Mira av., 88, Krasnoyarsk 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakov, V.I.; Anishchenko, O.V.; Ivanova, E.A.; Gladyshev, M.I.; Sushchik, N.N.

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Standing stock and potential yield of essential polyunsaturated fatty acids in zoobentos of the Enisei river / M. I. Gladyshev [и др.] // Doklady Akademii Nauk. - 2004. - Vol. 394, Is. 1. - С. 133-135 . - ISSN 0869-5652
Кл.слова (ненормированные):
Biomass -- Composition -- Fatty acids -- Food products -- Rivers -- Zoobentos -- Fisheries
Аннотация: Such estimation for the big river was conducted for the first time and showed that the ecosystem of central Enisei segment with near 780 km length is able to provide alimentary requirements in eicosopentaenoic plus docosohexaenoic acids for only several thousand people.

Scopus
Держатели документа:
Inst. Biofiziki SO RAN, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Suschik, N.N.; Andrianova, A.V.; Makhutova, O.N.; Kalacheva, G.S.; Shulepina, S.P.

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Evaluation of non-predatory mortality of two Daphnia species in a Siberian reservoir / M. I. Gladyshev [et al.] // Journal of Plankton Research. - 2003. - Vol. 25, Is. 8. - P999-1003, DOI 10.1093/plankt/25.8.999 . - ISSN 0142-7873
Кл.слова (ненормированные):
estimation method -- mortality -- zooplankton -- Russian Federation -- Daphnia -- Daphnia cucullata -- Daphnia longispina
Аннотация: A new method of estimating non-predatory mortality of Zooplankton based on live/dead sorting and sediment trap measurement is described. Preliminary results on Daphnia cucullata and Daphnia longispina are given. Estimations of average non-predatory mortality demonstrated a significant contribution of this kind of mortality to total mortality.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Br. of Russ. Acad. of Sci., Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State University, Svobodny Av, 79, Krasnoyarsk, 660042, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Dubovskaya, O.P.; Gubanov, V.G.; Makhutova, O.N.

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10.

A study of forest vegetation dynamics in the south of the Krasnoyarskii Krai in spring / M. Chernetskiy [et al.] // Advances in Space Research. - 2011. - Vol. 48, Is. 5. - P819-825, DOI 10.1016/j.asr.2011.04.032 . - ISSN 0273-1177
Кл.слова (ненормированные):
EVI -- Forestry -- MODIS -- NDVI -- Remote sensing -- Vegetation phenology -- Accurate measurement -- Annual time series -- Carbon exchange -- Data series -- Dynamic state -- Enhanced vegetation index -- EVI -- Forest vegetation -- Global scale -- Growth dynamics -- Interannual variability -- Moderate resolution imaging spectroradiometer -- MODIS -- NDVI -- Normalized difference vegetation index -- Principal components analysis -- Remote sensing applications -- Remote sensing data -- Satellite data -- Spatial structure -- Spring season -- Terrestrial ecosystems -- Vegetation dynamics -- Vegetation phenology -- Biology -- Climate models -- Dynamics -- Ecosystems -- Estimation -- Forestry -- Monitoring -- Principal component analysis -- Radiometers -- Remote sensing -- Satellite imagery -- Timber -- Time series -- User interfaces -- Vegetation -- Carbon -- Ecosystems -- Forests -- Image Analysis -- Plants -- Remote Sensing -- Time Series Analysis
Аннотация: Remote sensing applications have greatly enhanced ability to monitor and manage in the areas of forestry. Accurate measurements of regional and global scale vegetation dynamics (phenology) are required to improve models and understanding of inter-annual variability in terrestrial ecosystem carbon exchange and climate-biosphere interactions. Study of vegetation phenology is required for understanding of variability in ecosystem. In this paper, monitoring of vegetation dynamics using time series of satellite data is presented. Vegetation variability (vegetation rate) in different topoclimatic areas is investigated. Original software using IDL interactive language for processing of satellite long-term data series was developed. To investigate growth dynamics vegetation rate inferred from remote sensing was used. All estimations based on annual time series of Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Vegetation rate for Enhanced Vegetation Index (EVI) and Normalized Difference Vegetation Index (NDVI) was calculated using MODIS data. The time series covers spring seasons of each of 9 years, from 2000 to 2008. Comparison of EVI and NDVI derived growth rates has shown that NDVI derived rates reveal spatial structure better. Using long-term data of vegetation rates variance was estimated that helps to reveal areas with anomalous growth rate. Such estimation shows sensitivity degree of different areas to different topoclimatic conditions. Woods of heights depend on spatial topoclimatic variability unlike woods of lowlands. Principal components analysis shows vegetation with different rate conditions. Also it reveals vegetation of same type in areas with different conditions. It was demonstrated that using of methods for estimating the dynamic state of vegetation based on remote sensing data enables successful monitoring of vegetation phenology. В© 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Akademgorodok 50/50, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Chernetskiy, M.; Pasko, I.; Shevyrnogov, A.; Slyusar, N.; Khodyayev, A.

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11.

Estimation of the stability of the photosynthetic unit in the bioregenerative life support system with plant wastes included in mass exchange / A. A. Tikhomirov [et al.] // Acta Astronautica. - 2008. - Vol. 63, Is. 7-10. - P1111-1118, DOI 10.1016/j.actaastro.2007.12.025 . - ISSN 0094-5765
Кл.слова (ненормированные):
BLSS -- Mass exchange -- Plant wastes -- Agricultural products -- Air pollution -- Biological materials -- Biomass -- Environmental engineering -- Estimation -- Experiments -- Human engineering -- Incineration -- Renewable energy resources -- Space research -- Substrates -- System stability -- Bioregenerative -- Life-support systems -- Mass exchanges -- Plant biomass -- Plant productivity -- Plant wastes -- Radish plants -- Significant reduction -- Soil like substrates -- Wheat straws -- Waste incineration
Аннотация: The purpose of this study is to estimate the possible effect produced on plant productivity by inedible plant biomass added to soil-like substrate (SLS). Results of the experiments with radish plants grown on the SLS with inedible biomass of carrot and beet plants added in the amounts roughly equal to their yields harvested from the same area showed a significant reduction in productivity of radish plants. The yield of radish plants grown on the SLS with added radish tops was almost the same as the yield of the radish grown on the neutral substrate. Experiments with addition of dry wheat straw to the SLS and growing of wheat and radish plants on that substrate also showed that the productivity of the plants grown in that way was decreased. Attempts to negate the adverse effect of plant wastes proved that the most effective way was to mineralize the wastes using the technique of "wet incineration". В© 2008 Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics Russian Academy of Sciences, Siberian Branch, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Environmental Control and Life Support Section, ESA-ESTEC, Postbus 299, 2200 AG Noordwijk, Netherlands
Institute of Biology Komi SC, Ural Branch Russian Academy of Sciences, Kommunisticheskaya Street, 28, 167982 Siktivkar, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tikhomirov, A.A.; Ushakova, S.A.; Velichko, V.V.; Zolotukhin, I.G.; Shklavtsova, E.S.; Lasseur, C.; Golovko, T.K.

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12.

Chlorophyll fluorescence induction and estimation of plant resistance to stress factors / T. V. Nesterenko, A. A. Tikhomirov, V. N. Shikhov // Zhurnal Obshchei Biologii. - 2007. - Vol. 68, Is. 6. - С. 444-458 . - ISSN 0044-4596
Кл.слова (ненормированные):
chlorophyll -- adaptation -- cucumber -- fluorescence -- growth, development and aging -- metabolism -- physiology -- plant leaf -- review -- Adaptation, Physiological -- Chlorophyll -- Cucumis sativus -- Fluorescence -- Plant Leaves -- Cucumis sativus
Аннотация: The usage of chlorophyll fluorescence induction (CFI) for estimating various types of plant resistance (primary, general, initial, adaptive) to stress factors is reviewed. The necessity of ontogenetic approach (considering the age-specific properties of the photosynthetic apparatus) in determining general and adaptive resistance of plants to prolonged action of stress factors by the CFI method is argued. In the plant Cucumbis sativus L., the possibility is shown of using age-specific qualitative and quantitative traits of leaf CFI (changes in the shape of chlorophyll fluorescence induction curves and in the dynamics of CFI parameters in the course of leaf ontogeny) for comparative study of differences between fully active and stressed plants. Possible criteria are suggested for estimating the effect of outer stress factors by the presence or absence of a steady-state phase in the dynamics of CFI parameters during leaf ontogeny. It is also suggested to use the duration of the steady-state phase following the termination of leaf growth (estimated by the dynamics of the slow phase of CFI as the ratio of fluorescence intensity at the peak P and the steady-state fluorescence intensity, FP/FS, or as the viability index Rfd) and the variability of CFI parameters during this period as qualitative estimates of plant resistance to prolonged action of stress factors.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Nesterenko, T.V.; Tikhomirov, A.A.; Shikhov, V.N.

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13.

Ontogenetic approach to the assessment of plant resistance to prolonged stress using chlorophyll fluorescence induction method / T. V. Nesterenko, A. A. Tikhomirov, V. N. Shikhov // Photosynthetica. - 2006. - Vol. 44, Is. 3. - P321-332, DOI 10.1007/s11099-006-0031-8 . - ISSN 0300-3604
Кл.слова (ненормированные):
Leaf age -- Photosystems 1 and 2 -- Radiation colour -- Specific leaf growth rate
Аннотация: The review deals with objective reasons that limit the use of chlorophyll fluorescence induction kinetics (Chl FIK) method in plant ecology. Based on the ontogenetic approach (analysis and comparison of the dynamics of the Chl fluorescence ratio Fp/Fs and physiological characteristics of plant leaves in ontogeny) possible criteria for the estimation of general plant resistance of photosynthetic apparatus (PSA) to prolonged stress affects are proposed. One of these criteria is the presence or absence of a steady-state phase in the dynamics of Chl fluorescence ratio Fp/Fs (or Rfd) of plant leaves after they stop growing. We also propose to use the duration of the steady-state phase and variability of Chl fluorescence ratios Rfd and Fp/Fs in this period for quantitative assessment of plant PSA resistance to prolonged stress during plant leaf ontogeny.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of the Russian Academy of Science, Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Nesterenko, T.V.; Tikhomirov, A.A.; Shikhov, V.N.

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14.

Tolerance of LSS plant component to elevated temperatures / S. A. Ushakova, A. A. Tikhomirov // Acta Astronautica. - 2002. - Vol. 50, Is. 12. - P759-764, DOI 10.1016/S0094-5765(02)00010-3 . - ISSN 0094-5765
Кл.слова (ненормированные):
Metabolism -- Photosynthesis -- Rate constants -- Thermal effects -- Thermoanalysis -- Thermal tolerance -- Life support systems (spacecraft) -- carbon dioxide -- adaptation -- article -- Brassicaceae -- comparative study -- heat -- instrumentation -- light -- metabolism -- microclimate -- photosynthesis -- physiology -- plant physiology -- wheat -- Adaptation, Physiological -- Brassicaceae -- Carbon Dioxide -- Ecological Systems, Closed -- Heat -- Life Support Systems -- Light -- Photosynthesis -- Plant Physiology -- Triticum
Аннотация: Stability of LSS based on biological regeneration of water, air and food subject to damaging factors is largely dependent on the behavior of the photosynthesizing component represented, mainly, by higher plants. The purpose of this study is to evaluate the tolerance of uneven-aged wheat and radish cenoses to temperature effects different in time and value. Estimation of thermal tolerance of plants demonstrated that exposure for 20 h to the temperature increasing to 45В°C brought about irreversible damage both in photosynthetic processes (up to 80% of initial value) and the processes of growth and development. Kinetics of visible photosynthesis during exposure to elevated temperatures can be used to evaluate critical exposure time within the range of which the damage of metabolic processes is reversible. With varying light intensity and air temperature it is possible to find a time period admissible for the plants to stay under adverse conditions without considerable damage of metabolic processes. В© 2002 Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) Academgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.

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15.

An alternative approach to solar system exploration providing safety of human mission to Mars / J. I. Gitelson [et al.] // Advances in Space Research. - 2003. - Vol. 31, Is. 1. - P17-24, DOI 10.1016/S0273-1177(02)00657-9 . - ISSN 0273-1177
Кл.слова (ненормированные):
Health care -- Parameter estimation -- Planets -- Radiation -- Safety factor -- Mars exploration -- Solar system -- space technology -- Electricity -- Feasibility Studies -- Human Engineering -- Humans -- Life Support Systems -- Man-Machine Systems -- Mars -- Radiation Protection -- Robotics -- Safety -- Solar System -- Space Flight -- Spacecraft
Аннотация: For systematic human Mars exploration, meeting crew safety requirements, it seems perspective to assemble into a spacecraft: an electrical rocket, a well-shielded long-term life support system, and a manipulator-robots operating in combined "presence effect" and "master-slave" mode. The electrical spacecraft would carry humans to the orbit of Mars, providing short distance (and low signal time delay) between operator and robot-manipulators, which are landed on the surface of the planet. Long-term hybrid biological and physical/chemical LSS could provide environment supporting human health and well being. Robot-manipulators operating in "presence effect" and "master-slave" mode exclude necessity of human landing on Martian surface decreasing the level of risk for crew. Since crewmen would not have direct contact with the Martian environment then the problem of mutual biological protection is essentially reduced. Lightweight robot-manipulators, without heavy life support systems and without the necessity of returning to the mother vessel, could be sent as scouts to different places on the planet surface, scanning the most interesting for exobiological research site. Some approximate estimations of electric spacecraft, long-term hybrid LSS, radiation protection and mission parameters are conducted and discussed. В© 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch Russian Acad. Sci., Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gitelson, J.I.; Bartsev, S.I.; Mezhevikin, V.V.; Okhonin, V.A.

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16.

"Biospherics" approach for studies of natural and artificial ecosystems / N. S. Pechurkin, L. A. Somova // Advances in Space Research. - 2008. - Vol. 41, Is. 5. - P691-695, DOI 10.1016/j.asr.2007.09.021 . - ISSN 0273-1177
Кл.слова (ненормированные):
Biospherics -- Biotic turnover -- Limiting substance -- Natural and artificial ecosystems -- Biogeochemistry -- Ecosystems -- Mathematical models -- Artificial ecosystems -- Energy fluxes -- Biospherics
Аннотация: The main unifying feature of natural and artificial ecosystems is their biotic turnover (cycling) of substances which is induced with energy fluxes. A new integrating scientific discipline - Biospherics - studies biotic cycles (both in experiments and in mathematical models) of different degree of closure and complexity. By its origin, Biospherics is to be connected with extensive studies of Biosphere by Russian academician Vladimir Vernadsky. He developed and used "empirical generalizations" based on innumerous observations, comparisons and reflections. His "bio-geo-chemical principles" of Biosphere and ecosystems development have more qualitative than quantitative nature. Quantitative criteria to evaluate the efficiency of natural and artificial ecosystems are to take into account energy fluxes and their use in ecosystems of different types. At least, three of them are of value for estimation of natural and artificial ecosystems' functional activities. Energy principle of extensive development (EPED), energy principle of intensive development (EPID) and main universal (generalized) criterion (MUC). The last criterion (Principle) characterizes the specific cycling rate of limiting chemical elements in multi-organism systems, developing under external energy fluxes. Its value can be a quantitative measure of effectiveness for every ecosystem functioning, including our global Biosphere. Different examples of these (above-mentioned) integrated criteria actions are presented and analyzed in the paper. В© 2007 COSPAR.

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Держатели документа:
Institute of Biophysics SB, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pechurkin, N.S.; Somova, L.A.

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17.

Quantitative criteria for estimation of natural and artificial ecosystems functioning / N. S. Pechurkin // Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - P1507-1511, DOI 10.1016/j.asr.2005.01.059 . - ISSN 0273-1177
Кл.слова (ненормированные):
Artificial ecosystems -- Limiting substances -- Natural ecosystems -- Quantitative criteria -- Carbon dioxide -- Energy management -- Estimation -- Hierarchical systems -- Personnel -- Plants (botany) -- Reliability -- Artificial ecosystems -- Limiting substances -- Natural ecosystems -- Quantitative criteria -- Ecosystems -- carbon -- biomass -- chemistry -- conference paper -- ecology -- ecosystem -- energy transfer -- microclimate -- photosynthesis -- population dynamics -- Biomass -- Carbon -- Ecological Systems, Closed -- Ecology -- Ecosystem -- Energy Transfer -- Life Support Systems -- Photosynthesis -- Population Dynamics
Аннотация: Using biotic turnover of substances in trophic chains, natural and artificial ecosystems are similar in functioning, but different in structure. It is necessary to have quantitative criteria to evaluate the efficiency of artificial ecosystems (AES). These criteria are dependent on the specific objectives for which the AES are designed. For example, if AES is considered for use in space, important criteria are efficiency in use of mass, power, volume (size) and human labor and reliability. Another task involves the determination of quantitative criteria for the functioning of natural ecosystems. To solve the problem, it is fruitful to use a hierarchical approach suitable for both individual links and the ecosystem as a whole. Energy flux criteria (principles) were developed to estimate the functional activities of biosystems at the population, community and ecosystem levels. A major feature of ecosystems as a whole is their biotic turnover of matter the rate of which is restricted by the lack of limiting substances. Obviously, the most generalized criterion is to take into account the energy flux used by the biosystem and the quantity of limiting substance included in its turnover. The use of energy flux by ecosystem, EUSED - is determined from the photoassimilation of CO2 by plants (per time unit). It can be approximately estimated as the net primary production of photosynthesis (NPP). So, the ratio of CO 2 photoassimilation rate (sometimes, measured as NPP) to the total mass of limiting substrate can serve as a main universal criterion (MUC). This MUC characterizes the specific cycling rate of limiting chemical elements in the system and effectiveness of every ecosystem including the global Biosphere. Comparative analysis and elaboration of quantitative criteria for estimation of natural and artificial ecosystems activities is of high importance both for theoretical considerations and for real applications. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, SB, RAS, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pechurkin, N.S.

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18.

Key factors in development of man-made and natural ecosystems / N. S. Pechurkin // Advances in Space Research. - 1999. - Vol. 24, Is. 3. - P377-381, DOI 10.1016/S0273-1177(99)00321-X . - ISSN 0273-1177
Кл.слова (ненормированные):
artificial ecosystem -- ecosystem function -- article -- ecosystem -- microbiology -- microclimate -- Ecological Systems, Closed -- Ecosystem -- Environmental Microbiology -- Life Support Systems -- Soil Microbiology
Аннотация: Key factors of ecosystem functioning are of the same nature for artificial and natural types. An hierarchical approach gives the opportunity for estimation of the quantitative behavior of both individual links and the system as a whole. At the organismic level we can use interactions of studied macroorganisms (man, animal, higher plant) with selected microorganisms as key indicating factors of the organisms immune status. The most informative factor for the population/community level is an age structure of populations and relationships of domination/elimination. The integrated key factors of the ecosystems level are productivity and rates of cycling of the limiting substances. The key factors approach is of great value for growth regulations and monitoring the state of any ecosystem, including the life support system (LSS)-type.

Scopus
Держатели документа:
Institute of Biophysics, Academgorodok, 660036, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pechurkin, N.S.

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19.

Seasonal and centennial cycles of carbonate mineralisation during the past 2500 years from varved sediment in Lake Shira, South Siberia / I. Kalugin [et al.] // Quaternary International. - 2013. - Vol. 290-291. - P245-252, DOI 10.1016/j.quaint.2012.09.016 . - ISSN 1040-6182
Кл.слова (ненормированные):
biochemistry -- carbonate -- environmental factor -- lacustrine deposit -- mineralization -- paleoenvironment -- pH -- salinity -- sediment chemistry -- temperature effect -- varve -- Khakassia -- Lake Shira -- Russian Federation -- Siberia
Аннотация: Shira Lake is a good representative object for detail weather-climate modeling due to its local hydroclimatic information and annually laminated bottom sediments. Carbonate biochemical mineralization in Shira Lake shows not only seasonal but also centennial pulses over each 450-500 years. An age-depth model has been built by layer counting combined with 137Cs and 14C isotopic dates. Thermodynamic estimation of the rock-water multisystem in conformity with local conditions and source matter provides grounds for interpretation of measured geochemical parameters in sediments including environmental indicators such as temperature, salinity, and pH. Scanning X-ray fluorescence for sub-millimeter microstratigraphic study of varves connects geochemical oscillations of microelement content (Rb, Ti, Ca, Sr, Br, XRD) with seasonality, as well as revealing centennial pulses of environmental change. Quantitative environmental reconstruction using multiple regression for precipitation calibrated by hydrometeorological time series year by year was carried out for the lake over the last 2500 years. В© 2012 Elsevier Ltd and INQUA.

Scopus
Держатели документа:
Siberian Branch of Russian Academy of Science, Institute of Geology and Mineralogy, Prospekt akademika Koptyuga 3, 630090 Novosibirsk, Russian Federation
Institute of Biophysics, Siberian Branch of Russian Academy of Science, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kalugin, I.; Darin, A.; Rogozin, D.; Tretyakov, G.

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20.

ESTIMATION OF SPECTRAL ABSORPTION-COEFFICIENTS OF DISSOLVED ORGANIC YELLOW MATTER IN MEZOTROPHIC AND EUTROPHIC WATER BODIES BY MEANS OF REMOTE OPTICAL SOUNDING [Текст] / A. F. SIDKO [и др.] // DOKLADY AKADEMII NAUK SSSR. - 1990. - Vol. 315, Is. 4. - С. 847-849. - Cited References: 8 . - 3. - ISSN 0002-3264

РУБ Multidisciplinary Sciences

: 660036, Красноярск, Академгородок, д. 50, стр. 50
Доп.точки доступа:
SIDKO, A.F.; APONASENKO, A.D.; SIDKO, F.Y.; FILIMONOV, V.S.

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