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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovskii A.Ya., Zotina T.A., Bondareva L.G., Degermendzhi A.G.
Заглавие : Assessment of the rate of accumulation of the transuranium element americium-241 by the aquatic plant Elodea canadensis
Место публикации : Doklady Biological Sciences. - 2004. - Vol. 399, Is. 1-6. - С. 467-469. - ISSN 00124966 (ISSN) , DOI 10.1007/s10630-005-0014-0
Ключевые слова (''Своб.индексиров.''): americium--radioisotope--water--article--biomass--drug effect--environmental monitoring--hydrocharitaceae--methodology--ph--plant--plant root--radiation exposure--radiochemistry--time--toxicity testing--water pollutant--americium--biomass--environmental monitoring--hydrocharitaceae--hydrogen-ion concentration--plant roots--plant shoots--plants--radiochemistry--radioisotopes--time factors--toxicity tests--water--water pollutants, radioactive--elodea canadensis
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rozhko T., Bondareva L., Mogilnaya O., Vydryakova G., Bolsunovsky A., Stom D., Kudryasheva N.
Заглавие : Detoxification of AM-241 solutions by humic substances: Bioluminescent monitoring
Место публикации : Analytical and Bioanalytical Chemistry. - 2011. - Vol. 400, Is. 2. - С. 329-334. - ISSN 16182642 (ISSN) , DOI 10.1007/s00216-010-4442-9
Ключевые слова (''Своб.индексиров.''): detoxification--humic substances--ionizing radiation--luminous bacteria--bacterial cells--bottom sediments--humic substances--luminescent intensity--luminous bacteria--natural transformations--organic substances--photobacterium phosphoreum--physiological activity--protecting agent--water solutions--anoxic sediments--bacteriology--bioluminescence--detoxification--ionizing radiation--luminance--radiation shielding--radioactivity--bacteria--americium--radioisotope--article--bioremediation--chemistry--environmental monitoring--evaluation--humic substance--instrumentation--luminescence--metabolism--methodology--photobacterium--water pollutant--americium--biodegradation, environmental--environmental monitoring--humic substances--luminescence--photobacterium--radioisotopes--water pollutants, chemical--bacteria (microorganisms)--photobacterium phosphoreum
Аннотация: The study addresses the effect of humic substances on marine luminous bacteria Photobacterium phosphoreum exposed to Am-241 (3,000 Bq L -1, water solution). Luminescent intensity of the bacteria was applied as a marker of their physiological activity. Humic substances have been found to reduce the effect of Am-241 on luminescence, decrease damage to cells, and change distribution of Am-241 between bacterial cells and intercellular media. It was shown that water-soluble humic substances, being products of natural transformation of organic substances in soil and bottom sediments, can serve as protecting agents for water microorganisms exposed to alpha radionuclides. В© 2010 Springer-Verlag.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovsky A., Zotina T., Bondareva L.
Заглавие : Accumulation and release of 241Am by a macrophyte of the Yenisei River (Elodea canadensis)
Место публикации : Journal of Environmental Radioactivity. - 2005. - Vol. 81, Is. 1. - С. 33-46. - ISSN 0265931X (ISSN) , DOI 10.1016/j.jenvrad.2004.10.012
Ключевые слова (''Своб.индексиров.''): 241am--accumulation--laboratory experiments--release--submerged plant elodea canadensis--yenisei river--activation analysis--biomass--concentration (process)--effluents--plutonium--rivers--aquatic plants--elodea plant--macrophytes--radioactive contamination--transuranium elements--americium 241--river water--americium--americium nitrate--bioaccumulation--biological uptake--macrophyte--pollutant source--radioactive pollution--river water--submerged vegetation--article--biomass--concentration (parameters)--environmental factor--fractionation--laboratory--macrophyte--radioactivity--river--sampling--adsorption--chemistry--hydrocharitaceae--methodology--physiology--plant--radiation exposure--radiation monitoring--russian federation--sediment--soil pollutant--time--tissue distribution--water pollutant--eastern hemisphere--eurasia--russian federation--world--yenisei river--elodea canadensis--adsorption--americium--biomass--chemical fractionation--geologic sediments--hydrocharitaceae--plant shoots--radiation monitoring--rivers--russia--soil pollutants, radioactive--time factors--tissue distribution--water pollutants, radioactive
Аннотация: The source of radioactive contamination of the Yenisei River floodplain, including contamination with transuranic elements, is the Mining-and-Chemical Combine of the Russian Ministry of Atomic Energy, which has for many years been producing weapons-grade plutonium. Transuranic elements have been detected not only in the soil and sediment of the river but also in the biomass of aquatic plants. This work is an investigation of accumulation and release of 241Am by a submerged macrophyte of the Yenisei River (Elodea canadensis) in laboratory experiments. In 2000-2003, laboratory experiments were carried out with biomass of E. canadensis Mich. and filtered river water. The samples were collected from the Yenisei River upstream of the discharge of the Combine's radioactive effluent. The experiments showed that 241Am is accumulated by Elodea biomass: the activity concentration of 241Am can reach 3280 В± 240 Bq/g, with the concentration factor for 241Am 16 600 В± 2200 l/kg. Results of chemical fractionation have proved that in the course of 241Am accumulation by Elodea biomass, 241Am tightly bound to biomass increases from 11% to 27% of the total 241Am in the biomass. Release of 241Am from the decaying Elodea biomass has been evaluated experimentally. By the end of the experiment (lasting up to 127 days), the Elodea plants had lost up to 65% of their initial 241Am activity and the rate of 241Am release into the water environment reached 23 Bq/day. В© 2004 Elsevier Ltd. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Adamovich V.V., Rogozin D.Yu., Degermendzhi A.G.
Заглавие : Developing the control criterion for a continuous culture of microorganisms
Место публикации : Mikrobiologiya. - 2005. - Vol. 74, Is. 1. - С. 5-16. - ISSN 00263656 (ISSN)
Ключевые слова (''Своб.индексиров.''): chemostat--control criterion--control factor--microorganism population--sensitivity coefficients--algorithm--bacterium--biological model--biomass--culture medium--ecosystem--growth, development and aging--methodology--microbiological examination--review--algorithms--bacteria--bacteriological techniques--biomass--culture media--ecosystem--models, biological
Аннотация: A short survey and critical analysis of previously proposed criteria for growth control of populations of microorganisms in the chemostat are presented. Based on the analysis of a mathematical model of the steady-state of a microbial population in the chemostat, an adequate control criterion is suggested, along with a method to identify the corresponding regulating factors. The new control criterion is expressed as a product of the factor transformation coefficient and the biomass sensitivity coefficient (SC) with respect to the change of the factor at the chemostat inlet (referred to in the sequel as the biomass SC). The control criterion determines the strength of the control exerted by this or that factor. The method of determination of the regulating factors consists in experimental determination of the real SCs for factors and the biomass and in calculating on this basis the corresponding ideal SCs for constant factor transformation coefficients. The ideal SCs are shown to add up to an integer value, a constraint that we call "quantization" relationships. Such relationships are used to test the completeness of the drawn list of control factors. The proposed method was applied to our own and literature data.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volova T.G., Trusova M.Y., Kalacheva G.S., Kozhevnicov I.V.
Заглавие : Physiological-biochemical properties and the ability to synthesize polyhydroxyalkanoates of the glucose-utilizing strain of the hydrogen bacterium Ralstonia eutropha B8562.
Место публикации : Applied microbiology and biotechnology. - 2006. - Vol. 73, Is. 2. - С. 429-433. - ISSN 01757598 (ISSN) , DOI 10.1007/s00253-006-0460-0
Ключевые слова (''Своб.индексиров.''): beta hydroxyvaleric acid--beta-hydroxyvaleric acid--carbon dioxide--ester--fatty acid--fructose--glucose--hexanoic acid derivative--hydrogen--hydroxyacid--oxygen--polymer--ribosome rna--valeric acid derivative--article--biotechnology--chemistry--metabolism--methodology--wautersia eutropha--biotechnology--carbon dioxide--cupriavidus necator--esters--fatty acids--fructose--glucose--hexanoic acids--hydrogen--hydroxy acids--oxygen--pentanoic acids--polymers--rna, ribosomal
Аннотация: Physiological-biochemical, genetic, and cultural properties of the glucose-utilizing mutant strain Ralstonia eutropha B8562 have been compared with those of its parent strain R. eutropha B5786. It has been shown that growth characteristics of the strain cultured on glucose as the sole carbon and energy source are comparable with those of the parent strain. Strain B8562 is characterized by high polyhydroxyalkanoate (PHA) yields on different carbon sources (CO(2), fructose, and glucose). PHA accumulation in the strain batch cultured on glucose under nitrogen deficiency reaches 90 %. The major monomer in the PHA is beta-hydroxybutyric acid (more than 99 mol %); the identified minor components are beta-hydroxyvaleric acid (0.25-0.72 mol %) and beta-hydroxyhexanoic acid (0.08-1.5 mol %). The strain is a promising PHA producer on available sugar-containing media with glucose.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovskij A.Ya., Sukovatyj A.G.
Заглавие : Radioactive contamination of aquatic organisms of the Yenisei river in the area affected by the activity of the mining-and-chemical combine
Место публикации : Radiatsionnaya Biologiya. Radioekologiya. - 2004. - Vol. 44, Is. 3. - С. 361-366. - ISSN 08698031 (ISSN)
Ключевые слова (''Своб.индексиров.''): dosimetry--environmental impact--radioactivity--river pollution--water analysis--aquatic organisms--diatoms--exposure dose rate--fontinalis antipyretica--phylolimnogammarus viridis--the enisei river--radioisotopes--animalia--bacillariophyta--bryophyta--fontinalis--fontinalis antipyretica--fresh water--radioisotope--animal--article--chemical industry--crustacea--diatom--environmental monitoring--industrial waste--methodology--mining--plant--radiation exposure--radiation response--russian federation--water pollutant--water pollution--animals--chemical industry--crustacea--diatoms--dose-response relationship, radiation--environmental monitoring--fresh water--industrial waste--mining--plants--radioisotopes--siberia--water pollutants, radioactive--water pollution
Аннотация: The study was done to investigate the content of manmade radionuclides in aquatic organisms of the Yenisei River near the Mining-and-Chemical Combine (MCC) and to estimate the exposure dose rates to organisms from various sources. The results of the investigation and calculations suggest that the main source of radioactive contamination of aquatic organisms is the coolant of the third MCC reactor, which is still being released into the Yenisei. Gamma-spectrometric analysis revealed 23 manmade radionuclides in the biomass of aquatic plants. The aquatic animal Phylolimnogammarus viridis and diatoms also contain manmade radionuclides. Among aquatic organisms, the highest dose rate is received by aquatic plants (up to 39 ?Gy/day). For most aquatic organisms under study, the dose received from the technogenic irradiation is an order of magnitude higher than the dose received from natural irradiation. The water moss (Fontinalis antipyretica) features the highest capacity to accumulate manmade radionuclides; hence, it accumulates the largest technogenic exposure dose among the study aquatic organisms.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pisman T.I., Pugacheva I.Y., Jukova E.Y., Shevyrnogov A.P.
Заглавие : Mathematical model of seasonal agrophytocenosis productivity based on terrestrial and satellite monitoring
Место публикации : Doklady Biological Sciences. - 2009. - Vol. 428, Is. 1. - С. 467-470. - ISSN 00124966 (ISSN) , DOI 10.1134/S0012496609050226
Ключевые слова (''Своб.индексиров.''): agriculture--algorithm--article--biological model--biomass--computer simulation--crop--growth, development and aging--methodology--season--space flight--wheat--agriculture--algorithms--biomass--computer simulation--crops, agricultural--models, biological--seasons--spacecraft--triticum
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Terskov I.A., Gitel'zon I.I., Shevyrnogov A.P.
Заглавие : Measurement of chlorophyll in surface waters from an airplane
Место публикации : Doklady Biophysics. - 1976. - Vol. Vol.226-228. - С. 30-33. - ISSN 00124974 (ISSN)
Ключевые слова (''Своб.индексиров.''): chlorophyll--methodology
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A.A., Kudenko Y.A., Degermendzhi A.G., Trifonov S.V., Sutormina E.F., Ivanova Y.A.
Заглавие : Assessment of composition and toxicity for plants of gases produced during physicochemical processing of human exometabolites as applied to biotechnical life support systems
Место публикации : Doklady Biochemistry and Biophysics. - 2011. - Vol. 441, Is. 1. - С. 252-254. - ISSN 16076729 (ISSN) , DOI 10.1134/S1607672911060032
Ключевые слова (''Своб.индексиров.''): ammonia--carbon dioxide--nitrogen oxide--oxygen--article--biomass--bioremediation--drug effect--gas--growth, development and aging--human--instrumentation--methodology--microclimate--plant--waste management--ammonia--biodegradation, environmental--biomass--carbon dioxide--ecological systems, closed--gases--humans--life support systems--nitrogen oxides--oxygen--plants--waste management
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ushakova S.A., Zolotukhin I.G., Tikhomirov A.A., Tikhomirova N.A., Kudenko Yu.A., Gribovskaya I.V., Balnokin Yu., Gros J.B.
Заглавие : Some methods for human liquid and solid waste utilization in bioregenerative life-support systems
Место публикации : Applied Biochemistry and Biotechnology. - 2008. - Vol. 151, Is. 2-3. - С. 676-685. - ISSN 02732289 (ISSN) , DOI 10.1007/s12010-008-8291-3
Ключевые слова (''Своб.индексиров.''): closure--human waste--life-support systems--salicornia--sodium chloride--above-ground biomass--biological lives--bioregenerative--closure--cultivation process--culture methods--human waste--irrigation waters--life-support systems--manned space missions--mineral elements--physico-chemical methods--salicornia--salicornia europaea--salt-tolerant--soil-like substrates--biomass--body fluids--electrodialysis--grain (agricultural product)--irrigation--liquids--metal refining--minerals--mining--oxidation--plant shutdowns--sodium chloride--soils--solid wastes--substrates--water supply--vegetation--article--biomass--controlled study--electrodialysis--halophyte--irrigation (agriculture)--microclimate--nonhuman--recycling--salicornia europaea--solid waste--bioremediation--dialysis--feces--goosefoot--growth, development and aging--human--methodology--salt tolerance--urine--waste management--wheat--batis maritima--salicornia--salicornia europaea--triticum aestivum--biodegradation, environmental--chenopodiaceae--dialysis--feces--humans--life support systems--salt-tolerance--triticum--urine--waste management
Аннотация: Bioregenerative life-support systems (BLSS) are studied for developing the technology for a future biological life-support system for long-term manned space missions. Ways to utilize human liquid and solid wastes to increase the closure degree of BLSS were investigated. First, urine and faeces underwent oxidation by Kudenko's physicochemical method. The products were then used for root nutrition of wheat grown by the soil-like substrate culture method. Two means of eliminating sodium chloride, introduced into the irrigation solution together with the products of urine oxidation, were investigated. The first was based on routine electrodialysis of irrigation water at the end of wheat vegetation. Dialysis eliminated about 50% of Na from the solution. This desalinization was performed for nine vegetations. The second method was new: after wheat cultivation, the irrigation solution and the solution obtained by washing the substrate containing mineral elements not absorbed by the plants were used to grow salt-tolerant Salicornia europaea L. plants (saltwort). The above-ground biomass of this plant can be used as a food, and roots can be added to the soil-like substrate. Four consecutive wheat and Salicornia vegetations were cultivated. As a result of this wheat and Salicornia cultivation process, the soil-like substrate salinization by NaCl were considerably decreased. В© 2008 Humana Press.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zolotukhin I.G., Tikhomirov A.A., Kudenko Yu.A., Gribovskaya I.V.
Заглавие : Biological and physicochemical methods for utilization of plant wastes and human exometabolites for increasing internal cycling and closure of life support systems
Место публикации : Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - С. 1559-1562. - ISSN 02731177 (ISSN) , DOI 10.1016/j.asr.2005.01.006
Ключевые слова (''Своб.индексиров.''): blss--desalting--higher plants--nacl utilization--sls--biomass--crops--decomposition--electrodialysis--harvesting--metabolites--soils--wastes--blss--higher plants--nacl utilization--sls--plants (botany)--biomass--decay--deionization--harvesting--plants--soil--wastes--wheat--sodium chloride--article--biomass--bioremediation--culture medium--feces--growth, development and aging--human--metabolism--methodology--microbiology--microclimate--urine--waste management--wheat--biodegradation, environmental--biomass--culture media--ecological systems, closed--feces--humans--life support systems--sodium chloride--soil microbiology--triticum--urine--waste management
Аннотация: Wheat was cultivated on soil-like substrate (SLS) produced by the action of worms and microflora from the inedible biomass of wheat. After the growth of the wheat crop, the inedible biomass was restored in SLS and exposed to decomposition ("biological" combustion) and its mineral compounds were assimilated by plants. Grain was returned to the SLS in the amount equivalent to human solid waste produced by consumption of the grain. Human wastes (urine and feces) after physicochemical processing turned into mineralized form (mineralized urine and mineralized feces) and entered the plants' nutrient solution amounts equal to average daily production. Periodically (once every 60-70 days) the nutrient solution was partly (up to 50%) desalinated by electrodialysis. Due to this NaCl concentration in the nutrient solution was sustained at a fixed level of about 0.26%. The salt concentrate obtained could be used in the human nutrition through NaCl extraction and the residuary elements were returned through the mineralized human liquid wastes into matter turnover. The control wheat cultivation was carried out on peat with use of the Knop nutrient solution. Serial cultivation of several wheat vegetations within 280 days was conducted during the experiment. Grain output varied and yield/harvest depended, in large part, upon the amount of inedible biomass returned to SLS and the speed of its decomposition. After achieving a stationary regime, (when the quantity of wheat inedible biomass utilized during vegetation in SLS is equal to the quantity of biomass introduced into SLS before vegetation) grain harvest in comparison with the control was at most 30% less, and in some cases was comparable to the control harvest values. The investigations carried out on the wheat example demonstrated in principle the possibility of long-term functioning of the LSS photosynthesizing link based on optimizations of biological and physicochemical methods of utilization of the human and plants wastes. The possibilities for the use of these technologies for the creation integrated biological-physicochemical LSS with high closure degree of internal matter turnover are discussed in this paper. В© 2005 Published by Elsevier Ltd on behalf of COSPAR.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A.A., Ushakova S.A., Manukovsky N.S., Lisovsky G.M., Kudenko Yu.A., Koyalev V.S., Gribovskaya I.V., Tirranen L.S., Zolotukhin I.G., Gros J.B., Lasseur Ch.
Заглавие : Synthesis of biomass and utilization of plants wastes in a physical model of biological life-support system
Место публикации : Acta Astronautica. - 2003. - Vol. 53, Is. 4-10. - С. 249-257. - ISSN 00945765 (ISSN) , DOI 10.1016/S0094-5765(03)00137-1
Ключевые слова (''Своб.индексиров.''): ecosystems--microorganisms--ph--photosynthesis--plants (botany)--synthesis (chemical)--waste utilization--biological life support systems (blls)--gas exchange--plant respiration--biomass--carbon dioxide--agaricales--article--biomass--bioremediation--growth, development and aging--hydroponics--incineration--metabolism--methodology--microbiology--microclimate--photosynthesis--plant physiology--radish--space flight--waste management--weightlessness--wheat--agaricales--biodegradation, environmental--biomass--carbon dioxide--ecological systems, closed--environmental microbiology--hydroponics--incineration--life support systems--photosynthesis--plant physiology--raphanus--space flight--triticum--waste management--weightlessness
Аннотация: The paper considers problems of biosynthesis of higher plants' biomass and "biological incineration" of plant wastes in a working physical model of biological LSS. The plant wastes are "biologically incinerated" in a special heterotrophic block involving Califomian worms, mushrooms and straw. The block processes plant wastes (straw, haulms) to produce soil-like substrate (SLS) on which plants (wheat, radish) are grown. Gas exchange in such a system consists of respiratory gas exchange of SLS and photosynthesis and respiration of plants. Specifics of gas exchange dynamics of high plants - SLS complex has been considered. Relationship between such a gas exchange and PAR irradiance and age of plants has been established. Nitrogen and iron were found to the first to limit plants' growth on SLS when process conditions are deranged. The SLS microflora has been found to have different kinds of ammonifying and denitrifying bacteria which is indicative of intensive transformation of nitrogen-containing compounds. The number of physiological groups of microorganisms in SLS was, on the whole, steady. As a result, organic substances - products of exchange of plants and microorganisms were not accumulated in the medium, but mineralized and assimilated by the biocenosis. Experiments showed that the developed model of a man-made ecosystem realized complete utilization of plant wastes and involved them into the intrasystem turnover. В© 2003 International Astronautical Federation. Published by Elsevier Science Ltd. All rights reserved.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gros J.B., Poughon L., Lasseur C., Tikhomirov A.A.
Заглавие : Recycling efficiencies of C,H,O,N,S, and P elements in a biological life support system based on micro-organisms and higher plants
Место публикации : Advances in Space Research. - 2003. - Vol. 31, Is. 1. - С. 195-199. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(02)00739-1
Ключевые слова (''Своб.индексиров.''): biomass--biosynthesis--chemical elements--earth atmosphere--ecosystems--life support systems (spacecraft)--manned space flight--microorganisms--plants (botany)--wastes--compartments--space research--carbon--carbon dioxide--hydrogen--nitrogen--oxygen--phosphorus--sulfur--space technology--article--biological model--biomass--chemistry--comparative study--computer simulation--growth, development and aging--metabolism--methodology--microbiology--microclimate--plant--waste management--biomass--carbon--carbon dioxide--computer simulation--ecological systems, closed--environmental microbiology--hydrogen--life support systems--models, biological--nitrogen--oxygen--phosphorus--plants, edible--sulfur--waste management
Аннотация: MELiSSA is a microorganism based artificial ecosystem conceived as a tool for understanding the behavior of ecosystems and developing the technology for future Manned Space Missions. MELiSSA is composed of four compartments colonized by the microorganisms required by the function of this ecosystem : breakdown of waste produced by men, regeneration of atmosphere and biosynthesis of edible biomass. This paper reports the mass balance description of a Biological Life Support System composed of the MELiSSA loop and of a Higher Plant Compartment working in parallel with the photosynthetic Spirulina compartment producing edible biomass. The recycling efficiencies of the system are determined and compared for various working conditions of the MELiSSA loop with or without the HPC. В© 2002 Published by Elsevier Science Ltd on behalf of COSPAR.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nesterenko T.V., Tikhomirov A.A.
Заглавие : An ontogenetic approach to the assessment of plant resistance to stress factors based on the method of chlorophyll fluorescence induction.
Место публикации : Doklady. Biochemistry and biophysics. - 2003. - Vol. 388. - С. 4-7. - ISSN 16076729 (ISSN)
Ключевые слова (''Своб.индексиров.''): chlorophyll--adaptation--aging--article--comparative study--cucumber--light--metabolism--methodology--photostimulation--photosynthesis--physiology--plant leaf--radiation dose--radiation exposure--spectrofluorometry--adaptation, physiological--aging--chlorophyll--cucumis sativus--light--photic stimulation--photosynthetic reaction center complex proteins--plant leaves--radiation dosage--spectrometry, fluorescence
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sushchik N.N., Gladyshev M.I., Kalachova G.S., Guseynova V.E.
Заглавие : Rapid assay of fatty acid composition using a portable high-performance liquid chromatograph for monitoring aquatic ecosystems
Место публикации : Journal of Chromatography A. - 1995. - Vol. 695, Is. 2. - С. 223-228. - ISSN 00219673 (ISSN) , DOI 10.1016/0021-9673(94)01090-2
Ключевые слова (''Своб.индексиров.''): fatty acid--alga--article--culture medium--ecology--high performance liquid chromatography--instrument--methodology--priority journal--ultraviolet spectrophotometry--water analysis
Аннотация: The chromatographic conditions presented allowed the separation of the nitrophenacyl derivatives of standards of eleven free fatty acids (FFA) using a portable high-performance chromatograph, suitable for use aboard a research vessel. A statistically significant linear correlation between UV absorbance and amount of the analytes injected was obtained. The method was tested on FFA from algae cultural media. The method can be used for the ecological monitoring of natural waters.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berzhanzkaya L.Y., Gitel'zon I.I., Fish A.M.
Заглавие : Bioluminescence of bacteria: a rhythmic process
Место публикации : BIOPHYSICS. - 1973. - Vol. 18, Is. 2. - С. 293-301. - ISSN 00063509 (ISSN)
Ключевые слова (''Своб.индексиров.''): bacterium--computer--in vitro study--methodology--microorganism--theoretical study
Аннотация: New results obtained in the detection of rhythms in the low frequency range in the light signal of a small number of photo bacteria are reported. The luminescence of a small number of bacteria was recorded with an apparatus the sensitivity of which was 12 quanta/pulse. To check the possible rhythms in the luminescence of the bacteria, correlation analysis was made of the interpulse intervals of the detection of the signal with a computer. This revealed a definite rhythm in the bacterial luminescence the fundamental frequency of which lies in the region 8 c/s. Profound modulation of a bioluminescent signal at this and multiple frequencies was demonstrated. The harmonic components found in the spectrum of the signal refute the existing view of the continuous character of bacterial luminescence.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bondar V.S., Ronzhin N.O., Mamaeva E.S., Baron A.V., Gitelson J.I.
Заглавие : Reusable biochemical diagnosis systems based on nanodiamonds
Место публикации : Doklady Biochemistry and Biophysics. - 2013. - Vol. 448, Is. 1. - С. 55-58. - ISSN 16076729 (ISSN) , DOI 10.1134/S160767291301016X
Ключевые слова (''Своб.индексиров.''): cholesterol--diamond--nanoparticle--article--bioassay--blood--chemical model--chemistry--glucose blood level--human--methodology--biological assay--blood glucose--cholesterol--diamond--humans--models, chemical--nanoparticles
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lisovsky G.M., Gitelson J.I., Shilenko M.P., Gribovskaya I.V., Trubachev I.N.
Заглавие : Direct utilization of human liquid wastes by plants in a closed ecosystem
Место публикации : Advances in Space Research. - 1997. - Vol. 20, Is. 10. - С. 1801-1804. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): fertilizer--nitrogen--sodium chloride--urea--article--biomass--culture medium--feasibility study--human--metabolism--methodology--microclimate--sewage--urine--waste management--wheat--biomass--culture media--ecological systems, closed--feasibility studies--fertilizers--humans--nitrogen--sodium chloride--triticum--urea--urine--waste disposal, fluid--waste management
Аннотация: Model experiments in phytotrons have shown that urea is able to cover 70% of the demand in nitrogen of the conveyer cultivated wheat. At the same time wheat plants can directly utilize human liquid wastes. In this article by human liquid wastes the authors mean human urine only. In a long-term experiment on "man-higher plants" system with two crewmen, plants covered 63 m2, with wheat planted to - 39.6 m2. For 103 days, complete human urine (total amount - 210.7 1) wassupplied into the nutrient solution for wheat. In a month and a half NaCl supply into the nutrient solution stabilized at 0.9-1.65 g/l. This salination had no marked effect on wheat production. The experiment revealed the realistic feasibility to directly involve liquid wastes into the biological turnover of the life support system. The closure of the system, in terms of water, increased by 15.7% and the supply of nutrients for wheat plants into the system was decreased. Closedness of biological turnover of matter in a man-made "man - higher plants" ecological system might involve, among other processes, direct utilization of human liquid wastes by plants. The amount of urine comprises 15-20% of the total amount of water cycling within the system including water as part of food, household, hygiene and potable water necessary for man. What is more, it they contains most nitrogen-bearing compounds emitted by man, almost all of the NaCl and some other substances involved in the biological turnover. Human liquid wastes can be utilized either by preliminary physical-chemical treatment (evaporating or freezing out the water, finally oxidizing the organic matter, isolating the mineral components required for plants, etc.) and further involvement of the obtained products or by direct application into the nutrient solution for plants. The challenge of direct utilization is that plants have no need of Na+ and Cl-, and also the organic forms of nitrogen emitted by man cannot fully meet the demand of plants forthis element. Besides, hygienic and/or psychological reasons make it desirable to avoid direct use of liquid wastes in the nutrient solutions that would have direct contact with edible part of plants (tubers, roots, bulbs). Feasibility of direct utilization of liquid wastes by plants in a closed "man - higher plants" ecosystem has been experimentally studied on wheat - grain culture as a model plant with the edible part in the form of seeds spatially dissociated with the nutrient medium. The wheat covered 60-65% of the area under higher plants. The studies have been carried out in "Bios-3"experimental facility described in detail elsewhere (Lisovsky, 1979; Gitelson et al., 1989). В© 1997 COSPAR. Published by Elsevier Science Ltd.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gitelson J.I., Tirranen L.S., Borodina E.V., Rygalov V.Ye.
Заглавие : Impaired growth of plants cultivated in a closed system: Possible reasons
Место публикации : Advances in Space Research. - 1997. - Vol. 20, Is. 10. - С. 1927-1930. - ISSN 02731177 (ISSN)
Ключевые слова (''Своб.индексиров.''): air conditioning--air pollutant--article--culture medium--growth, development and aging--human--hydroponics--methodology--microbiology--microclimate--plant--sewage--wheat--air conditioning--air pollutants--culture media--ecological systems, closed--environment, controlled--humans--hydroponics--life support systems--plants--triticum--waste disposal, fluid--water microbiology
Аннотация: Plants in experiments on "man-higher plants" closed ecosystem (CES) have been demonstrated to have inhibited growth and reduced productivity due to three basic factors: prolonged usage of a permanent nutrient solution introduction into the nutrient medium of intra-system gray water, and closure of the system. Gray water was detrimental to plants the longer the nutrient solution was used. However, higher plant growth was mostly affected by the gaseous composition of the CES atmosphere, through accumulation of volatile substances. В© 1997 COSPAR. Published by Elsevier Science Ltd.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Salisbury F.B., Gitelson J.I., Lisovsky G.M.
Заглавие : Bios-3: Siberian experiments in bioregenerative life support
Место публикации : BioScience. - 1997. - Vol. 47, Is. 9. - С. 575-585. - ISSN 00063568 (ISSN)
Ключевые слова (''Своб.индексиров.''): agriculture--chlorella--construction work and architectural phenomena--crop--energy metabolism--evaluation--growth, development and aging--human--metabolism--methodology--microbiology--microclimate--nasa discipline life support systems--non-nasa center--photon--review--russian federation--space flight--nasa discipline life support systems--non-nasa center--agriculture--chlorella--crops, agricultural--ecological systems, closed--energy metabolism--environment, controlled--environmental microbiology--evaluation studies--facility design and construction--humans--life support systems--photons--siberia--space flight--space simulation
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