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Behaviour of the residue of glutamic acid on self-organization of protein molecules / P. I. Belobrov // Biophysics. - 1975. - Vol. 20, Is. 1. - P18-21 . - ISSN 0006-3509
Кл.слова (ненормированные):
glutamic acid -- protein -- computer analysis -- in vitro study -- theoretical study
Аннотация: The method of atom-atom potentials has been used to study the glutamyl dipeptide in ionized (glu-) and non-ionized (glu) states. A calculation has been made with a computer of the conformational maps and the statistical sums of glu and glu-. It was found that on transition of glu > glu- fall in the energy exceeds the free energy of initiation of the helix with an increased probability of the helical state of the molecule of glu-. From this it is concluded that glu- may in certain conditions be the embryo of the helix on self-organization of protein. В© 1975.

Scopus
Держатели документа:
Institute of Physics, the Siberian Division, U.S.S.R. Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Belobrov, P.I.

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A study of the stationary and the anomalous in the ocean surface chlorophyll distribution by satellite data / A. Shevyrnogov, G. Vysotskaya, E. Shevyrnogov // International Journal of Remote Sensing. - 2004. - Vol. 25, Is. 7-8. - P1383-1387 . - ISSN 0143-1161
Кл.слова (ненормированные):
Chlorophyll -- Data reduction -- Oceanography -- Planets -- Probability -- Satellite communication systems -- Biospheres -- Remote sensing -- chlorophyll -- concentration (composition) -- remote sensing -- satellite data -- sea surface
Аннотация: Variability of chlorophyll concentration in the ocean is one of the most important components of the primary production process on the planet. To preserve the biosphere and to make appropriate use of it, it is imperative to have a deep insight into the long-term dynamics of the primary production on the planet. To investigate the dynamics of chlorophyll concentration based on satellite data, the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. It was used to detect the areas in the global ocean that are quasistationary in relation to seasonal dynamics of chlorophyll concentration. Areas such as these, found in the Indian Ocean, are described in this work. These areas form the basis for the analysis of long-term dynamics of chlorophyll concentration. In these quasistationary zones systematic monitoring of phytopigment concentration is conducted by space-borne and marine craft. The work presents long-term satellite-based data on the space distribution of anomalous deviations of chlorophyll concentration in the ocean. An anomaly criterion is proposed and maps of Pacific Ocean areas with a high probability of anomalies are presented. В© 2004 Taylor and Francis Ltd.

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

Доп.точки доступа:
Shevyrnogov, A.; Vysotskaya, G.; Shevyrnogov, E.

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Spatial and temporal anomalies of chlorophyll concentration in Atlantic ocean (by space-based data) / A. Shevyrgonov, G. Vysotskaya, E. Shevyrgonov // Advances in Space Research. - 2002. - Vol. 30, Is. 11. - P2541-2546, DOI 10.1016/S0273-1177(02)80334-9 . - ISSN 0273-1177
Кл.слова (ненормированные):
Chlorophyll -- Data reduction -- Ocean engineering -- Probability -- Thermal effects -- Time series analysis -- Chlorophyll concentration -- Space research -- chlorophyll -- remote sensing -- sea surface -- spatiotemporal analysis -- Atlantic Ocean
Аннотация: The work presents long-standing CZCS-satellite-based data about spatial distribution of anomalies in chlorophyll concentration and temperature of the ocean. An anomaly criterion is proposed. Maps of Atlantic ocean areas with elevated probability of anomalies are given. Properties of anomalous zones in different parts of the Atlantic ocean are discussed. Satellite-based maps of anomaly coefficients for chlorophyll concentration and temperature in the Atlantic ocean have been shown to feature substantial differences, the zones of elevated anomaly of chlorophyll concentration and temperature - to be close only in the vicinity of the Amazon outflow into the Atlantic ocean. Along with fundamental knowledge about dynamics of biological phenomena in the ocean the methods described may be used to reveal deviations due to anthropogenic impact. The methods presented may be used to process SeaWiFS prograna data. The data derived may be used to analyze long-standing time series to estimate randomness of cunent changes. В©2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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

Доп.точки доступа:
Shevyrgonov, A.; Vysotskaya, G.; Shevyrgonov, E.

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Management and control of microbial populations' development in LSS of missions of different durations / L. A. Somova, N. S. Pechurkin // Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - P1621-1625, DOI 10.1016/j.asr.2004.12.046 . - ISSN 0273-1177
Кл.слова (ненормированные):
Long-term missions -- LSS -- Macro- and microorganism -- Microbial populations -- Ecosystems -- Population statistics -- Probability -- Recycling -- Life support systems (LSS) -- Long-term mission -- Macro-and microorganism -- Microbial populations -- Microorganisms -- aerospace medicine -- bioreactor -- bioremediation -- Chlorella -- conference paper -- drug resistance -- human -- hygiene -- immune system -- instrumentation -- methodology -- microbiology -- microclimate -- physiology -- space flight -- waste management -- weightlessness -- Aerospace Medicine -- Biodegradation, Environmental -- Bioreactors -- Chlorella -- Drug Resistance -- Ecological Systems, Closed -- Environmental Microbiology -- Humans -- Hygiene -- Immune System -- Life Support Systems -- Space Flight -- Waste Management -- Weightlessness
Аннотация: The problem of interaction between man and microorganisms in closed habitats is an inextricable part of the whole problem of co-existence between macro- and microorganisms. Concerning the support of human life in closed habitat, we can, conventionally, divide microorganisms, acting in life support system (LSS) into three groups: useful, neutral and harmful. The tasks, for human beings for optimal coexistence with microhabitants seem to be trivial: (1) to increase the activity of useful forms, (2) decrease the activity harmful forms, (3) not allow the neutral forms to become the harmful ones and even to help them to gain useful activity. The task of efficient management and control of microbial population's development in LSS highly depends on mission duration. As for short-term missions without recycling, the proper hygienic procedures are developed. For longer missions, the probability of transformation of the neutral forms into the harmful ones is becoming more dangerous. The LSS for long-term missions are to use cycling-recycling systems, including system with biological recycling. In these systems, microbial populations as regenerative link should be useful and active agents. Some problems of microbial populations control and management are discussed in the paper. 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:
Somova, L.A.; Pechurkin, N.S.

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Mathematical modeling of population dynamics of unstable plasmid-containing bacteria during continuous cultivation in a chemostat / V. V. Ganusov, A. V. Bril'kov, N. S. Pechurkin // Biofizika. - 2000. - Vol. 45, Is. 5. - С. 908-914 . - ISSN 0006-3029
Кл.слова (ненормированные):
article -- bioreactor -- Escherichia coli -- fermentation -- genetics -- growth, development and aging -- Photobacterium -- plasmid -- theoretical model -- Bioreactors -- Escherichia coli -- Fermentation -- Models, Theoretical -- Photobacterium -- Plasmids
Аннотация: A structural approach to studying the regularities of the population dynamics of unstable recombinant bacterial strains in a chemostat was elaborated. The approach is based on the mathematical modeling of cell distribution in a population with different numbers of plasmid copies. The effect of decreased selective preference of plasmidless variants of the recombinant strain in the chemostat, which is related to a decrease in the number of plasmid copies in cells upon long-term incubation was analyzed. It is shown that the time of half-elimination of plasmids from the bacterial population in the steady state in the chemostat T1/2 does not depend on the maximum number of plasmid copies in cells N but is determined only by the mean time of generation g and the probability of the loss of one plasmid copy tau. The dependence of the preference of bacterial plasmidless variants on the efficiency of expression of genes cloned into plasmids in chemostat was analyzed using the recombinant strain E. coli Z905, whose plasmids pPHL-7 contain cloned genes for the luminescence system of marine luminescing bacteria Photobacterium leiognathi.

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

Доп.точки доступа:
Ganusov, V.V.; Bril'kov, A.V.; Pechurkin, N.S.

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Coupled large earthquakes in the Baikal rift system: Response to bifurcations in nonlinear resonance hysteresis / A. V. Klyuchevskii, R. G. Khlebopros // Geoscience Frontiers. - 2013, DOI 10.1016/j.gsf.2013.01.008 . - ISSN 1674-9871
Кл.слова (ненормированные):
Baikal rift system -- Bifurcation -- Coupled large earthquakes -- Hysteresis -- Nonlinear geodynamics -- Nonlinear oscillator with dissipation -- Phase portrait
Аннотация: The current lithospheric geodynamics and tectonophysics in the Baikal rift are discussed in terms of a nonlinear oscillator with dissipation. The nonlinear oscillator model is applicable to the area because stress change shows up as quasi-periodic inharmonic oscillations at rifting attractor structures (RAS). The model is consistent with the space-time patterns of regional seismicity in which coupled large earthquakes, proximal in time but distant in space, may be a response to bifurcations in nonlinear resonance hysteresis in a system of three oscillators corresponding to the rifting attractors. The space-time distribution of coupled MLHВ >В 5.5 events has been stable for the period of instrumental seismicity, with the largest events occurring in pairs, one shortly after another, on two ends of the rift system and with couples of smaller events in the central part of the rift. The event couples appear as peaks of earthquake 'migration' rate with an approximately decadal periodicity. Thus the energy accumulated at RAS is released in coupled large events by the mechanism of nonlinear oscillators with dissipation. The new knowledge, with special focus on space-time rifting attractors and bifurcations in a system of nonlinear resonance hysteresis, may be of theoretical and practical value for earthquake prediction issues. Extrapolation of the results into the nearest future indicates the probability of such a bifurcation in the region, i.e., there is growing risk of a pending MВ ?В 7 coupled event to happen within a few years. В© 2013.

Scopus
Держатели документа:
Institute of the Earth's Crust, Siberian Branch of the Russian Academy of Sciences, 128 ul. Lermontov, Irkutsk 664033, Russia
Siberian Federal University, 79, Svobodny ave., Krasnoyarsk 660041, Russia
Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk 660036, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Klyuchevskii, A.V.; Khlebopros, R.G.

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Coupled large earthquakes in the Baikal rift system: Response to bifurcations in nonlinear resonance hysteresis / A. V. Klyuchevskii, R. G. Khlebopros // Geoscience Frontiers. - 2013. - Vol. 4, Is. 6. - P709-716, DOI 10.1016/j.gsf.2013.01.008 . - ISSN 1674-9871
Кл.слова (ненормированные):
Baikal rift system -- Bifurcation -- Coupled large earthquakes -- Hysteresis -- Nonlinear geodynamics -- Nonlinear oscillator with dissipation -- Phase portrait
Аннотация: The current lithospheric geodynamics and tectonophysics in the Baikal rift are discussed in terms of a nonlinear oscillator with dissipation. The nonlinear oscillator model is applicable to the area because stress change shows up as quasi-periodic inharmonic oscillations at rifting attractor structures (RAS). The model is consistent with the space-time patterns of regional seismicity in which coupled large earthquakes, proximal in time but distant in space, may be a response to bifurcations in nonlinear resonance hysteresis in a system of three oscillators corresponding to the rifting attractors. The space-time distribution of coupled MLH > 5.5 events has been stable for the period of instrumental seismicity, with the largest events occurring in pairs, one shortly after another, on two ends of the rift system and with couples of smaller events in the central part of the rift. The event couples appear as peaks of earthquake 'migration' rate with an approximately decadal periodicity. Thus the energy accumulated at RAS is released in coupled large events by the mechanism of nonlinear oscillators with dissipation. The new knowledge, with special focus on space-time rifting attractors and bifurcations in a system of nonlinear resonance hysteresis, may be of theoretical and practical value for earthquake prediction issues. Extrapolation of the results into the nearest future indicates the probability of such a bifurcation in the region, i.e.; there is growing risk of a pending M ? 7 coupled event to happen within a few years.В© 2013, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. All rights reserved.

Scopus
Держатели документа:
Institute of the Earth's Crust, Siberian Branch of the Russian Academy of Sciences, 128 ul. Lermontov, Irkutsk 664033, Russian Federation
Siberian Federal University, 79 Svobodny ave., Krasnoyarsk 660041, Russian Federation
Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Klyuchevskii, A.V.; Khlebopros, R.G.

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T-MATRIX APPROACH AND THE ANGULAR-MOMENTUM THEORY IN LIGHT-SCATTERING PROBLEMS BY ENSEMBLES OF ARBITRARILY-SHAPED PARTICLES [Text] / L. E. PARAMONOV // J. Opt. Soc. Am. A-Opt. Image Sci. Vis. - 1995. - Vol. 12, Is. 12. - P. 2698-2707, DOI 10.1364/JOSAA.12.002698. - Cited References: 38 . - ISSN 0740-3232

РУБ Optics
Рубрики:
ELECTROMAGNETIC SCATTERING
NONSPHERICAL GRAINS
EXTINCTION
Аннотация: Light scattering by a macroscopically anisotropic volume element, which consists of arbitrarily shaped particles with an arbitrary square-integrable probability-density function over orientations, is considered. The T-matrix approach and the quantum theory of angular momentum are used to develop a rigorous analytical method (in terms of the T matrix) for computing the extinction matrix; the extinction, scattering, and absorption cross sections; and the elements of the Mueller matrix of the volume element. The constructive theorem of the existence of the expansion of scattering-matrix elements in a series of Wigner functions for a medium with rotation symmetry is proved. The analytical results are generalized for incident radiation composed of incoherent plane waves with a square-integrable probability-density function over directions of propagation, intensities, and polarization states. (C) 1995 Optical Society of America.

WOS : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
PARAMONOV, L.E.

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Self-restoration of biocomponents as a mean to enhance biological life support systems reliability [Text] / S. I. Bartsev, V. A. Okhonin ; ed.: F Brechignac, , F Brechign // LIFE SCIENCES: ARTIFICIAL ECOSYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON PRESS LTD, 1999. - Vol. 24: F4 3 and F4 4 Symposia of COSPAR Scientific Commission F Held at 31st COSPAR Scientific Assembly (JUL 14-21, 1996, BIRMINGHAM, ENGLAND), Is. 3. - P. 393-396, DOI 10.1016/S0273-1177(99)00489-5. - Cited References: 5 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: One of the key problems of long-term space missions is limited service life of units. The only exceptions are biological components of biological Life Support Systems - higher plants or microorganisms. These components are capable of self-restoration: after complete disintegration, they can appear again from seeds or spores. The estimate of failure intensity of BLSS regeneration component includes: a number of self-sustained sections of the regeneration component; permissible boost (how many times can productivity of a component be increased); time required to repair (restore) a component; the crew existence time, when all LSS regeneration components fail; failure rate of one section of a regeneration component. Evaluations show that for hydrogen-oxidizing bacteria and micro-algae very high reliability is achieved even for one or two sections. In the case of higher plants (due to low rate of self-restoration) bio-regenerative module has to be divided into 10 self-sustained sections operating simultaneously. These measures can decrease the probability of catastrophe by a factor of 10 (C) 1999 COSPAR. Published by Elsevier Science Ltd.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Okhonin, V.A.; Brechignac, F \ed.\; Brechign, , F \ed.\

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10.

Potentialities of theoretical and experimental prediction of life support systems reliability [Text] / S. I. Bartsev, V. A. Okhonin ; ed.: F Brechignac, , F Brechign // LIFE SCIENCES: ARTIFICIAL ECOSYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON PRESS LTD, 1999. - Vol. 24: F4 3 and F4 4 Symposia of COSPAR Scientific Commission F Held at 31st COSPAR Scientific Assembly (JUL 14-21, 1996, BIRMINGHAM, ENGLAND), Is. 3. - P. 407-412, DOI 10.1016/S0273-1177(99)00491-3. - Cited References: 13 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: To develop and design Life Support Systems it is necessary to evaluate their reliability. However direct experiments take much time, are very expensive, and therefore are practically impossible. Promising way is to use approximate estimates of reliability, which need essentially fewer amounts of experimental data. Two types of estimates of Life Support System reliability - additive and multiplicative ones are considered in the paper. Additive estimate is based on the assumption that total system failure probability is low and therefore it can be considered as the sum of failure probability of separate units. Additive approach allows obtaining near lower-bounded estimate of failure probability. Multiplicative estimate allows evaluating the possibility of system catastrophe due to simultaneous effect of several factors when each of them separately is not dangerous. Evaluation shows that the possible error of reliability forecast increases with the increasing of number of external factors faster than exponential function. An illustration of the ecological similarity approach as promising tool for providing estimation of full-scale system reliability by means the set of small similar experimental models. (C) 1999 COSPAR. Published by Elsevier Science Ltd.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Okhonin, V.A.; Brechignac, F \ed.\; Brechign, , F \ed.\

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11.

Spatial and temporal anomalies of chlorophyll concentration in Atlantic ocean (by space-based data) [Text] / A. . Shevyrnogov, G. . Vysotskaya, E. . Shevyrnogov ; ed. JL Fellous [et al.] // EARTH'S ATMOSPHERE, OCEAN AND SURFACE STUDIES. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2002. - Vol. 30: A0 1, A0 4-A0 5, A3 1, C1 1 and C2 6 Symposia of the COSPAR Scientific Commissions A and C held at the 33rd COSPAR Scientific Assembly (JUL , 2000, WARSAW, POLAND), Is. 11. - P. 2541-2546, DOI 10.1016/S0273-1177(02)80334-9. - Cited References: 5 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: The work-presents long-standing CZCS-satellite-based data about spatial distribution of anomalies in chlorophyll concentration and temperature of the ocean. An anomaly criterion is proposed. Maps of Atlantic ocean areas with elevated probability of anomalies are given. Properties of anomalous zones in different parts of the Atlantic ocean are discussed. Satellite-based maps of anomaly coefficients for chlorophyll concentration and temperature in the Atlantic ocean have been shown to feature substantial differences, the zones of elevated anomaly of chlorophyll concentration and temperature - to be close only in the vicinity of the Amazon outflow into the Atlantic ocean. Along with fundamental knowledge about dynamics of biological phenomena in the ocean the methods described may be used to reveal deviations due to anthropogenic impact. The methods presented may be used to process SeaWiFS program data. The data derived may be used to analyze long-standing time series to estimate randomness of current changes. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk, Russia
RAS, SB, Inst Computat Modelling, Krasnoyarsk, Russia
ИБФ СО РАН
ИВМ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shevyrnogov, A...; Vysotskaya, G...; Shevyrnogov, E...; Fellous, JL \ed.\; LeMarshall, JF \ed.\; Choudhury, BJ \ed.\; Menenti, M \ed.\; Paxton, LJ \ed.\; Paxto, LJ \ed.\

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12.

A study of the stationary and the anomalous in the ocean surface chlorophyll distribution by satellite data [Text] / A. . Shevyrnogov, G. . Vysotskaya, E. . Shevyrnogov // Int. J. Remote Sens. - 2004. - Vol. 25: Oceans from Space Venice 2000 Symposium (OCT 09-13, 2000, Venice, ITALY), Is. 07.08.2013. - P. 1383-1387, DOI 10.1080/01431160310001592337. - Cited References: 8 . - ISSN 0143-1161

РУБ Remote Sensing + Imaging Science & Photographic Technology

Аннотация: Variability of chlorophyll concentration in the ocean is one of the most important components of the primary production process on the planet. To preserve the biosphere and to make appropriate use of it, it is imperative to have a deep insight into the long-term dynamics of the primary production on the planet. To investigate the dynamics of chlorophyll concentration based on satellite data, the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) has developed a geoinformation system. It was used to detect the areas in the global ocean that are quasistationary in relation to seasonal dynamics of chlorophyll concentration. Areas such as these, found in the Indian Ocean, are described in this work. These areas form the basis for the analysis of long-term dynamics of chlorophyll concentration. In these quasistationary zones systematic monitoring of phytopigment concentration is conducted by space-borne and marine craft. The work presents long-term satellite-based data on the space distribution of anomalous deviations of chlorophyll concentration in the ocean. An anomaly criterion is proposed and maps of Pacific Ocean areas with a high probability of anomalies are presented.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
RAS, SB, Inst Computat Modeling, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shevyrnogov, A...; Vysotskaya, G...; Shevyrnogov, E...

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13.

Essence of life and multiformity of its realization: expected signatures of life [Text] / S. I. Bartsev ; ed. G Horneck [et al.] // SPACE LIFE SCIENCES: SEARCH FOR SIGNATURES OF LIFE, AND SPACE FLIGHT ENVIRONMENTAL EFFECTS ON THE NERVOUS SYSTEM. Ser. ADVANCES IN SPACE RESEARCH-SERIES : PERGAMON-ELSEVIER SCIENCE LTD, 2004. - Vol. 33: 2nd World Space Congress/34th COSPAR Scientific Assembly (OCT 10-19, 2002, HOUSTON, TX), Is. 8. - P. 1313-1317, DOI 10.1016/j.asr.2003.08.032. - Cited References: 23 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Biophysics + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences
Рубрики:
COMPLEX NETWORKS
EMERGENCE
EVOLUTION
Кл.слова (ненормированные):
astrobiology -- signatures of life -- essence of life -- multiformity of life
Аннотация: The question on the essence of life as phenomenon is the key one for astrobiology, since the answer to this question determines "breadth of our outlook". Taking Earth's version of life as the pattern extremely under-estimates our estimation of the probability of life origin and respectively expected probability of extraterrestrial life discovery. In the paper the hypothetical key attribute of life in general is selected on the base of comparative analyses and deductive inference. Simulation conducted on the base of neural network model shows that the same function could be realized by means of great variety of structures, which originated in the course of an evolutionary process. So multiplicity of evolutionary outcomes essentially increases the probability of final result - realization of an integrated function providing fitness to environment. Life as the integrated function can be realized via great variety of development ways and structures. A logical consequence of definitions for life as phenomenon is suggested. Final one is "Life is specific organization of informational and energetic processes coupling, enabling choice-making, and displayed as anomalies of different kinds". Anomalies of visible form, mechanical movement, chemical composition and noticeable response are considered. Presented in the paper sweeping generalization is not rigorously proven, however it can play heuristic role in increasing the level of specificity of searching for extraterrestrial life. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bartsev, S.I.; Horneck, G \ed.\; LevasseurRegourd, AC \ed.\; Rabin, BM \ed.\; Rabin, \ed.\

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