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Найдено документов в текущей БД: 18

    Peculiarities of functional activity of the peripheral blood cells of fishes of the middle section of the krasnoyarsk reservoir in summer period
[Text] / G.V. Makarskaya, S.V. Tarskikh // Hydrobiological Journal. - 2012. - Vol. 48, Is. 1. - pp. 83-90, DOI 10.1615/HydrobJ.v48.i1.100 . - ISSN 0018-8166
Аннотация: Paper deals with results of monitoring of the quantitative and functional characteristics of the peripheral blood cells of different fish species of the middle section of the Krasnoyarsk reservoir over the years 2000-2009. Seasonal dynamics of the oxygen metabolism of the blood cells of different fishes was characterized by similar changes of the non-specific resistance in the spawning and post-spawning period under different level of the water filling of the reservoir. В© 2012 Begell House, Inc.

Scopus


Доп.точки доступа:
Makarskaya, G.V.; Макарская, Галина Владимировна; Tarskikh, S.V.

    Some generalizations based on stratification and vertical mixing in meromictic Lake Shira, Russia, in the period 2002-2009
[Text] / D.Y. Rogozin [et al.] // Aquat. Ecol. - 2010. - Vol. 44, Is. 3. - pp. 485-496, DOI 10.1007/s10452-010-9328-6. - Cited References: 27. - We thank Mr. Fyodor Kozlov for assistance in winter lake surveys, Dr. Alexander Tolomeev and Dr. Egor Zadereev (Institute of Biophysics SD RAS) for field data of August 2006, Dr. Galina Kalacheva (Institute of Biophysics SD RAS) for ash content determination and all others who helped us in expeditions. We are also very grateful to Dr. Wolf Mooij (Netherlands Institute of Ecology) and two anonymous reviewers for valuable comments and advice on article preparation. This work was partly supported by the Netherlands Organization for Scientific Research, Grant 047.011.2004.030, the Russian Foundation for Basic Research, Grants No. 09-04-01114-a and 09-05-00915-a, by Siberian Branch of Russian Academy of Sciences, Integrative Project No. 95 and joint Taiwan-Siberian Project No. 149, by Russian Academy of Sciences, Program No. 23.15, by award No. PG07-002-1 of the Ministry of Education and Sciences of Russian Federation and U.S. Civilian Research & Development Foundation for the Independent States of the Former Soviet Union (CRDF). . - ISSN 1386-2588
РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
PHOTOTROPHIC SULFUR BACTERIA
   MONO LAKE

   CHEMOCLINE

Кл.слова (ненормированные):
Meromixis -- Mixolimnion -- Oxic-anoxic interface -- Thermocline -- Weather conditions -- 1-D model

Аннотация: In a brackish, temperate, 24-m-deep Lake Shira, the profiles of salinity, temperature, oxygen and sulfide concentrations were measured on a seasonal basis from 2002 to 2009. The lake was shown to be meromictic with autumnal overturn restricted to mixolimnion. The depth of mixolimnion and position of oxic-anoxic interface varied annually. The spring mixing processes contribute to the formation of mixolimnion in autumn. The exceptionally windy spring of 2007 caused the deepening of mixolimnion in the winter of 2008. The winter position of oxic-anoxic interface was affected by the position of lower boundary of mixolimnion in all winters. The salinity in the winter mixolimnion increased compared with the autumn because of freezing out of salts from the upper water layers meters during ice formation and their dissolution in water below. The profiles of salinity and temperature were simulated by the mathematical 1-D model of temperature and salinity conditions taking into account ice formation. The simulated profiles generally coincided with the measured ones. The coincidence implies that simplified one-dimensional model can be applied to roughly describe salinity and density profiles and mixing behavior of Lake Shira.


Доп.точки доступа:
Rogozin, D.Y.; Genova, S.N.; Генова, Светлана Николаевна; Gulati, R.D.; Degermendzhy, A.G.

    Coronal Mass Ejection (CME) activity of low mass M stars as an important factor for the habitability of terrestrial exoplanets. II. CME-induced ion pick up of Earth-like exoplanets in close-in habitable zones
[Text] / H. . Lammer [et al.] // Astrobiology. - 2007. - Vol. 7, Is. 1. - P185-207, DOI 10.1089/ast.2006.0128. - Cited References: 104 . - ISSN 1531-1074
РУБ Astronomy & Astrophysics + Biology + Geosciences, Multidisciplinary

Аннотация: Atmospheric erosion Of CO2-rich Earth-size exoplanets due to coronal mass ejection (CME)-induced ion pick up within close-in habitable zones of active M-type dwarf stars is investigated. Since M stars are active at the X-ray and extreme ultraviolet radiation (XUV) wavelengths over long periods of time, we have applied a thermal balance model at various XUV flux input values for simulating the thermospheric heating by photodissociation and ionization processes due to exothermic chemical reactions and cooling by the CO2 infrared radiation in the 15 mu m band. Our study shows that intense XUV radiation of active M stars results in atmospheric expansion and extended exospheres. Using thermospheric neutral and ion densities calculated for various XUV fluxes, we applied a numerical test particle model for simulation of atmospheric ion pick up loss from an extended exosphere arising from its interaction with expected minimum and maximum CME plasma flows. Our results indicate that the Earth-like exoplanets that have no, or weak, magnetic moments may lose tens to hundreds of bars of atmospheric pressure, or even their whole atmospheres due to the CME-induced O+ ion pick up at orbital distances <= 0.2 astronomical units. We have found that, when exposed to intense XUV fluxes, atmospheres with CO2/N-2 mixing ratios lower than 96% will show an increase in exospheric temperatures and expanded thermosphere-exosphere environments. Hence, they suffer stronger atmospheric erosion, which can result in the total loss of several hundred bars even if an exoplanet is protected by a "magnetic shield" with its boundary located at I Earth radius above the surface. Furthermore, our study indicates that magnetic moments of tidally locked Earth-like exoplanets are essential for protecting their expanded upper atmospheres because of intense XUV radiation against CME plasma erosion. Therefore, we suggest that larger and more massive terrestrial-type exoplanets may better protect their atmospheres against CMEs, because the larger cores of such exoplanets would generate stronger magnetic moments and their higher gravitational acceleration would constrain the expansion of their thermosphere-exosphere regions and reduce atmospheric escape.


Доп.точки доступа:
Lammer, H.; Lichtenegger, H.I.M.; Kulikov, Y.N.; Griessmeier, J.M.; Terada, N.; Erkaev, N.V.; Еркаев, Николай Васильевич; Biernat, H.K.; Khodachenko, M.L.; Ribas, I.; Penz, T.; Selsis, F.

    Planetary ENA imaging: Venus and a comparison with Mars
[Text] / H. Gunell [et al.] // Planet Space Sci. - 2005. - Vol. 53, Is. 4. - P433-441, DOI 10.1016/j.pss.2004.07.021. - Cited References: 21 . - ISSN 0032-0633
РУБ Astronomy & Astrophysics

Аннотация: We present simulated images of energetic neutral atoms (ENAs) produced in charge exchange collisions between solar wind protons and neutral atoms in the exosphere of Venus, and make a comparison with earlier results for Mars. The images are found to be dominated by two local maxima. One produced by charge exchange collisions in the solar wind, upstream of the bow shock, and the other close to the dayside ionopause. The simulated ENA fluxes at Venus are lower than those obtained in similar simulations of ENA images at Mars at solar minimum conditions, and close to the fluxes at Mars at solar maximum. Our numerical study shows that the ENA flux decreases with an increasing ionopause altitude. The influence of the Venus nighttime hydrogen bulge on the ENA emission is small. (C) 2004 Elsevier Ltd. All rights reserved.


Доп.точки доступа:
Gunell, H.; Holmstrom, M.; Biernat, H.K.; Erkaev, N.V.; Еркаев, Николай Васильевич

    Loss of hydrogen and oxygen from the upper atmosphere of Venus
[Text] / H. Lammer [et al.] // Planet Space Sci. - 2006. - Vol. 54, Is. 13-14. - P1445-1456, DOI 10.1016/j.pss.2006.04.022. - Cited References: 93 . - ISSN 0032-0633
РУБ Astronomy & Astrophysics

Аннотация: Atmospheric escape from the upper atmosphere of Venus is mainly influenced by the loss of hydrogen and oxygen caused by the interaction of solar radiation and particle flux with the unprotected planetary environment. Because one main aim of the ASPERA-4 particle/plasma and VEX-MAG magnetic field experiments on board of ESA's forthcoming Venus Express mission is the investigation of atmospheric erosion processes from the planet's ionosphere-exosphere environment, we study the total loss of hydrogen and oxygen and identified the efficiency of several escape mechanisms involved. For the estimation of pick up loss rates we use a gas dynamic test particle model and obtained average loss rates for H+, and O+ pick up ions of about 1 x 10(25) s(-1) and about 1.6 x 10(25) s(-1), respectively. Further, we estimate ion loss rates due to detached plasma clouds, which were observed by the pioneer Venus orbiter and may be triggered by the Kelvin-Helmholtz instability of about 0.5-1 x 10(25) s(-1). Thermal atmospheric escape processes and atmospheric loss by photo-chemically produced oxygen atoms yield negligible loss rates. Sputtering by incident pick up O+ ions give O atom loss rates in the order of about 6 x 10(24) s(-1). On the other hand, photo-chemically produced hot hydrogen atoms are a very efficient loss mechanism for hydrogen on Venus with a global average total loss rate of about 3.8 x 10(25) s(-1), which is in agreement with Donahue and Hartle [1992. Solar cycle variations in H+ and D+ densities in the Venus ionosphere: implications for escape. Geophys. Res. Lett. 12, 2449-2452] and of the same order but less than the estimated H+ ion outflow on the Venus nightside of about 7.0 x 10(25) s(-1) due to acceleration by an outward electric polarization force related to ionospheric holes by Hartle and Grebowsky [1993. Light ion flow in the nightside ionosphere of Venus. J. Geophys. Res. 98, 7437-7445]. Our study indicates that on Venus, due to its larger mass and size compared to Mars, the most relevant atmospheric escape processes of oxygen involve ions and are caused by the interaction with the solar wind. The obtained results indicate that the ratio between H/O escape to space from the Venusian upper atmosphere is about 4, and is in a much better agreement with the stoichiometrically H/O escape ratio of 2:1, which is not the case on Mars. However, a detailed analysis of the outflow of ions from the Venus upper atmosphere by the ASPERA-4 and VEX-MAG instruments aboard Venus Express will lead to more accurate atmospheric loss estimations and a better understanding of the planet's water inventory. (c) 2006 Elsevier Ltd. All rights reserved.


Доп.точки доступа:
Lammer, H.; Lichtenegger, H.I.M.; Biernat, H.K.; Erkaev, N.V.; Еркаев, Николай Васильевич; Arshukova, I.L.; Kolb, C.; Gunell, H.; Lukyanov, A.; Holmstrom, M.; Barabash, S.; Zhang, T.L.; Baumjohann, W.

    The Kelvin-Helmholtz instability at Venus: What is the unstable boundary?
[Text] / U. V. Mostl [et al.] // Icarus. - 2011. - Vol. 216, Is. 2. - P476-484, DOI 10.1016/j.icarus.2011.09.012. - Cited References: 27. - This work is supported by the Austrian Science Fund Project P21051-N16 and also by RFBR Grant No. 09-05-91000-ANF_a. H.L. and H.G. are supported by the Helmholtz Association through the research alliance "Planetary Evolution and Life" and by the Austrian Science Fund Project I199-N16. M.Z. and D.K. are supported by the Austrian Science Fund Project I193-N16. . - ISSN 0019-1035
РУБ Astronomy & Astrophysics

Аннотация: The Kelvin-Helmholtz instability gained scientific attention after observations at Venus by the spacecraft Pioneer Venus Orbiter gave rise to speculations that the instability contributes to the loss of planetary ions through the formation of plasma clouds. Since then, a handful of studies were devoted to the Kelvin-Helmholtz instability at the ionopause and its implications for Venus. The aim of this study is to investigate the stability of the two instability-relevant boundary layers around Venus: the induced magnetopause and the ionopause. We solve the 2D magnetohydrodynamic equations with the total variation diminishing Lax-Friedrichs algorithm and perform simulation runs with different initial conditions representing the situation at the boundary layers around Venus. Our results show that the Kelvin-Helmholtz instability does not seem to be able to reach its nonlinear vortex phase at the ionopause due to the very effective stabilizing effect of a large density jump across this boundary layer. This seems also to be true for the induced magnetopause for low solar activity. During high solar activity, however, there could occur conditions at the induced magnetopause which are in favour of the nonlinear evolution of the instability. For this situation, we estimated roughly a growth rate for planetary oxygen ions of about 7.6 x 10(25) s(-1), which should be regarded as an upper limit for loss due to the Kelvin-Helmholtz instability. (C) 2011 Elsevier Inc. All rights reserved.


Доп.точки доступа:
Mostl, U.V.; Erkaev, N.V.; Еркаев, Николай Васильевич; Zellinger, M.; Lammer, H.; Groller, H.; Biernat, H.K.; Korovinskiy, D.

    Structures based on graphitized nanotubulenes with a common electrode in a matrix of porous anodic alumina for the purpose of forming electrically switchable membranes
[Text] / M. M. Simunin [et al.] // Tech. Phys. Lett. - 2015. - Vol. 41, Is. 11. - P1047-1050, DOI 10.1134/S1063785015110103. - Cited References:20. - This work was supported financially by the Russian Science Foundation, project no. 15-19-10017. . - ISSN 1063-7850. - ISSN 1090-6533
РУБ Physics, Applied

Аннотация: A structure based on porous anodic alumina with through pores is synthesized. This structure may be of some interest in terms of fabricating electrically switchable membranes. Conducting tubulenes connected to a common input electrode are located in the pores of the structure. It is hypothesized that enhancement of the electric field nonuniformity associated with the indicated structure morphology should help raise the degree of ionic selectivity of the membrane and broaden the range of permissible concentrations of ions in the processed solution. An suggestion regarding the structure of synthesized tubulenes in the context of the problem of suppressing the physical sorption of ions on the pore surface and raising the hydrogen and oxygen reduction potentials relative to those of state-of-the-art field-switchable membranes is also made.

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Держатели документа:
Natl Res Univ Elect Technol MIET, Moscow 124498, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Inst Computat Modeling, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Simunin, M. M.; Khartov, S. V.; Shiverskii, A. V.; Zyryanov, V. Ya.; Fadeev, Y. V.; Фадеев Ю.В.; Voronin, A. S.; Russian Science Foundation [15-19-10017]

    Assessment of changes in the qualitative composition and properties of dissolved organic matter on hydrooptical characteristics when fractional filtration of natural water
[Text] / P. V. Postnikova ; ed.: G. G. Matvienko, O. A. Romanovskii // 21ST INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS: : SPIE-INT SOC OPTICAL ENGINEERING, 2015. - Vol. 9680: 21st International Symposium On Atmospheric and Ocean Optics - (JUN 22-26, 2015, Tomsk, RUSSIA). - Ст. UNSP 96802Y. - (Proceedings of SPIE), DOI 10.1117/12.2204892. - Cited References:12 . -
РУБ Engineering, Ocean + Meteorology & Atmospheric Sciences + Optics

Аннотация: The paper discusses the changes hydro-optical parameters that characterize the qualitative composition of dissolved organic matter (DOM), during fractional filtering though large (4.5 mu m and 1.76 mu m) and small (0.9 mu m) filters. A loess reservoir lake Khanka containing great amount of suspended inorganic matter were selected as the research object. In order to assess changes in the composition of the DOM the following parameters were selected: index of the degree exponent of absorption spectrum, the specific absorption coefficient, relative specific fluorescence yield and relative specific fluorescence,. The research has shown that not only the content of organic matter during adsorption on the surface of the suspension is changing during filtration, but also the composition.

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Scopus

Держатели документа:
Russian Acad Sci, Inst Computat Modelling, Siberian Branch, Krasnoyarsk, Russia.

Доп.точки доступа:
Matvienko, G.G. \ed.\; Romanovskii, O.A. \ed.\; Постникова, Полина Владимировна

    Solar XUV and ENA-driven water loss from early Venus' steam atmosphere
[Text] / K. G. Lichtenegger [et al.] // J. Geophys. Res-Space Phys. - 2016. - Vol. 121, Is. 5. - P4718-4732, DOI 10.1002/2015JA022226. - Cited References:60. - H.I.M. Lichtenegger acknowledges support from the FWF project P24247-N16, and N.V. Erkaev, M. Gudel, K.G. Kislyakova, C.P. Johnstone, and H. Lammer acknowledge the support by the FWF NFN project S11601-N16 "Pathways to Habitability: From Disks to Active Stars, Planets and Life" and the related FWF NFN subprojects, S11604-N16 "Radiation & Wind Evolution from T Tauri Phase to ZAMS and Beyond", and S11607-N16 "Particle/Radiative Interactions with Upper Atmospheres of Planetary Bodies Under Extreme Stellar Conditions." N.V. Erkaev, H. Lammer, and P. Odert acknowledges also support from the FWF project P27256-N27. N.V. Erkaev was also supported by the RFBR grant 15-05-00879-a. This research was conducted using resources provided by the Swedish National Infrastructure for Computing (SNIC) at the High Performance Computing Center North (HPC2N), Umea University, Sweden. The software used in this work was in part developed by the DOE-supported ASC/Alliance Center for Astrophysical Thermonuclear Flashes at the University of Chicago. The data can be provided by H. I. M. Lichtenegger (herbert.lichtenegger@oeaw.ac.at) and K.G. Kislyakova (kristina.kislyakova@oeaw.ac.at). . - ISSN 2169-9380. - ISSN 2169-9402
РУБ Astronomy & Astrophysics
Рубрики:
MAGNETICALLY ACTIVE STARS
   CORONAL MASS EJECTIONS

   EARTH-LIKE

Кл.слова (ненормированные):
energetic neutral atoms -- atmosphere evolution -- Venus

Аннотация: We present a study on the influence of the upper atmosphere hydrodynamic escape of hydrogen, driven by the solar soft X-ray and extreme ultraviolet radiation (XUV), on an expected outgassed steam atmosphere of early Venus. By assuming that the young Sun was either a weak or moderately active young G star, we estimated the water loss from a hydrogen dominated thermosphere due to the absorption of the solar XUV flux and the precipitation of solar wind produced energetic hydrogen atoms (ENAs). The production of ENAs and their interaction with the hydrodynamic extended upper atmosphere, including collision-related feedback processes, have been calculated by means of Monte Carlo models. ENAs that collide in the upper atmosphere deposit their energy and heat the surrounding atmosphere mainly above the main XUV energy deposition layer. It is shown that precipitating ENAs modify the thermal structure of the upper atmosphere, but the enhancement of the thermal escape rates caused by these energetic hydrogen atoms is negligible. Our results also indicate that the majority of oxygen arising from dissociated H2O molecules is left behind during the first 100Myr. It is thus suggested that the main part of the remaining oxygen has been absorbed by crustal oxidation.

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Держатели документа:
Austrian Acad Sci, Space Res Inst, Graz, Austria.
SB RAS, Inst Computat Modelling, Krasnoyarsk, Russia.
Siberian Fed Univ, Polytech Inst, Krasnoyarsk, Russia.
Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA.
Univ Vienna, Dept Astrophys, Vienna, Austria.
Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA.
Swedish Inst Space Phys, Kiruna, Sweden.

Доп.точки доступа:
Lichtenegger, H. I. M.; Kislyakova, K. G.; Odert, N. V.; Erkaev, N. V.; Lammer, H.; Groller, C. P.; Johnstone, C. P.; Elkins-Tanton, L.; Tu, M.; Gudel, M.; Holmstrom, M.; FWF [P24247-N16, P27256-N27]; FWF NFN [S11601-N16, S11604-N16, S11607-N16]; RFBR [15-05-00879-a]

    Peculiarities of the antioxidant activity of tissues of rheophilic zoobenthic species in accordance to the results of chemiluminescent analysis
/ G. V. Makarskaya, A. V. Andrianova, S. V. Tarskikh // Contemp. Probl. Ecol. - 2016. - Vol. 9, Is. 5. - P574-581, DOI 10.1134/S1995425516050103 . - ISSN 1995-4255
Аннотация: Adaptations of living organisms to the environment are formed and manifested at different levels, from molecular to biocoenotic. Nowadays, the metabolic antioxidant system (AOS) is considered the key part of the process of adaptation; its activation is considered a general response of biota to the negative effect of the environment. The usage of AOS components as biomarkers of the stress condition in hydrobionts has good prospects; it is actively applied in the monitoring of aquatic ecosystems. Here, the kinetics of the free radical formation in various zoobenthic species from the Yenisei River (amphipods, oligochaetes, leeches, and chironomids) and in the amphipods from the Us River (a small mountain river, the Yenisei tributary) is analyzed. The parameters of kinetics of radical formation were registered in vitro in the homogenates of hydrobionts tissues under the initiation of the oxidative stress by the hydrogen peroxide using luminol-dependent chemoluminescence. In amphipods, unlike other invertebrates, the antioxidative activity is characterized by two chemiluminescent peaks. In addition, the kinetics of free radical elaboration has interspecific and agerelated variability in amphipods. In Gmelinoides fasciatus Stebb., the peak of the free radical elaboration and their total number significantly exceeded these parameters for Gammarus sp. and Eulimnogammarus viridis Dybowsky in a 60-min period. The increase of the production of free radicals in E. viridis and Gammarus sp. and its decrease in G. fasciatus were age-dependent. A significantly higher production of free radicals has been registered in G. fasciatus and E. viridis inhabiting the zone of elevated anthropogenic load in the Yenisei River. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
International Scientific Centre for Organism Extreme Conditions Research at Presidium of Krasnoyarsk Scientific Centre, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation
Scientific Research Institute of Ecology of Fishery Reservoirs, ul. Parizhskoi Kommuny 33, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Makarskaya, G. V.; Andrianova, A. V.; Tarskikh, S. V.
574.5; 574.24; 59.083
О-118

    Особенности антиоксидантной активности тканей у представителей реофильного зообентоса по результатам хемилюминесцентного анализа
[Текст] : статья / Галина Владимировна Макарская, Анна Владимировна Андрианова, Светлана Вениаминовна Тарских // Сибирский экологический журнал. - 2016. - Т. 23, № 5. - С. 697-707, DOI 10.15372/SEJ20160507 . - ISSN 0869-8619
   Перевод заглавия: Features of Antioxidant Activity of Tissues of Reophil Zoobenthos Representatives Based on the Chemiluminescent Analysis
УДК

Аннотация: Адаптации живых организмов к условиям окружающей среды формируются и проявляются на самых различных уровнях - от молекулярного до биоценотического. В настоящее время метаболическая антиоксидантная система (АОС) считается ключевым звеном адаптационных процессов, а ее активация рассматривается как универсальный отклик биоты на негативное воздействие окружающей среды. Использование компонентов АОС в качестве биомаркеров стрессовых воздействий на гидробионтов активно внедряется и имеет большие перспективы в системе мониторинга водных экосистем. В данной работе проанализирована кинетика образования свободных радикалов у различных представителей зообентоса из р. Енисей (амфиподы, олигохеты, пиявки, хирономиды) и амфипод из р. Ус (малая горная река, приток Енисея). Параметры кинетики радикалообразования регистрировали методом люминолзависимой хемилюминесценции при инициировании оксидативного стресса перекисью водорода in vitro в гомогенатах тканей гидробионтов. Выявлено, что у амфипод, в отличие от других беспозвоночных, процесс антиокислительной активности характеризуется двумя вспышками хемилюминесценции. Кроме того, у амфипод наблюдались межвидовые и возрастные отличия по параметрам кинетики генерации свободных радикалов. У Gmelinoides fasciatus Stebb. пик интенсивности генерации свободных радикалов и их общее количество за 60-минутный период регистрации достоверно превосходили данные показатели для Gammarus sp. и Eulimnogammarus viridis Dybowsky. С возрастом наблюдалось увеличение объема продукции свободных радикалов у E. viridis и Gammarus sp. и снижение у G. fasciatus. Отмечено достоверно более высокое значение объема генерации свободных радикалов у G. fasciatus и E. viridis, обитающих в зоне р. Енисей с повышенной антропогенной нагрузкой.
The adaptation of living organisms to the environmental conditions is formed and manifested at different levels - from the molecular to the biocenotic. Nowadays, the metabolic antioxidant system (AOS) is considered to be the key part of adaptive processes, and its activation is regarded as a general response of biota to the negative impact of the environment. The usage of AOS components as biomarkers of stressful influence on hydrobionts has good prospects and is actively applied in the monitoring system of aquatic ecosystems. In this paper the kinetics of free radical formation in various zoobenthos representatives from the Yenisei River (amphipods, oligochaetes, leeches, chironomids) and in amphipods from the Us River (a small mountain river, the Yenisei tributary) is analyzed. Parameters of kinetics of radical formation were registered using the method of luminoldepended chemoluminescence under the initiation of oxidative stress with hydric dioxide in vitro in homogenates of hydrobionts tissues. It was revealed that in amphipodes, as opposed to other invertebrates, the process of antioxidative activity is characterized by two chemiluminescent flashes. What is more, interspecies and age-related differences in parameters of the kinetics of free radicals formation were noticed in amphipodes. In Gmelinoides fasciatus Stebb. the intension peak of the formation of free radicals and their total number during the 60-minute registration period authentically exceeded these parameters for Gammarus sp. and Eulimnogammarus viridis Dybowsky. With age, the increase in volume of production of free radicals in E. viridis and Gammarus sp. and its decrease in G. fasciatus were observed. The authentically higher value of volume of production of free radicals in G. fasciatus and E. viridis inhabiting the zone of the Yenisei River with heightened anthropogenic load was marked.

РИНЦ

Держатели документа:
Институт вычислительного моделирования СО РАН
МНЦ ИЭСО при Президиуме КНЦ СО РАН
НИИ ЭРВ

Доп.точки доступа:
Андрианова, Анна Владимировна; Andrianova A.V.; Тарских, Светлана Вениаминовна; TARSKIKH S.V.; Makarskaya G.V.
612.35
И 37

    Изменение генерации активных форм кислорода в печени после введения биогенного ферригидрита
[Текст] : статья / Вера Геннадьевна Пахомова [и др.] // Здоровье. Медицинская экология. Наука. - 2017. - Т. 70, № 3. - С. 136-139, DOI 10.5281/zenodo.817825 . - ISSN 2075-4108
   Перевод заглавия: The introduction of biognetic ferryhydritis affects on the generation of reactive oxygen species in the liver
УДК

Аннотация: Цель работы - анализ генерации активных форм кислорода (АФК) клетками печени крысы при воздействии наночастиц ферригидрита. Материалы и методы. Анализ биологической активности ферригидрита проводили на модели изолированной культивируемой печени крысы. Изменение генерации АФК в клетках печени определяли методом хемилюминесцентного анализа. В качестве люминесцентных зондов использовали люминол и люцигенин. В результате проведенного исследования показано, что наночастицы биогенного ферригидрита способствуют усилению генерации активных форм кислорода в клетках печени.
The aim of this work is to analyze the generation of reactive oxygen species (ROS) by rat liver cells after exposed to ferrihydrite nanoparticles. Materials and methods. The test of the biological activity of ferrihydrite was carried out on the model of an isolated cultured rat liver. The change in the ROS generation by liver cells was determined by the method of chemiluminescent analysis. Luminol and lucigenin were used as luminescent enhancer. The results were shown that nanoparticles of biogenic ferrihydrite promote the generation of ROS by liver cells.

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Держатели документа:
Федеральное государственное бюджетное научное учреждение «Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук»
Федеральное государственное бюджетное образовательное учреждение высшего образования «Красноярский государственный медицинский университет имени профессора В.Ф. Войно-Ясенецкого» Министерства здравоохранения Российской Федерации

Доп.точки доступа:
Пахомова, Вера Геннадьевна; Шадрин, Константин Викторович; Макарская, Галина Владимировна; Тарских, Светлана Вениаминовна; Рупенко, Александр Петрович; Крюкова, Ольга Витальевна; Гуревич, Юрий Леонидович

    One-dimensional Model for Studying Seasonal Changes of Vertical Structure of Salt Lake Uchum
/ V. M. Belolipetskii [et al.] // J. Sib. Fed. Univ.-Math. Phys. - 2019. - Vol. 12, Is. 1. - P100-108, DOI 10.17516/1997-1397-2019-12-1-100-108. - Cited References:19. - The work was supported by the RFBR grants (16-05-00091) and Russian Foundation for Basic Research and the government of the region of the Russian Federation, grant 18-45-243002. . - ISSN 1997-1397. - ISSN 2313-6022
РУБ Mathematics
Рубрики:
CIRCULATION
Кл.слова (ненормированные):
salt lake -- one-dimensioanal vertical model -- temperature and salinity -- profiles of water

Аннотация: Many salt lakes are meromictic, in which the water column is not mixed to the bottom for at least one year. In the stratified lake, the upper (epilimnion) and deep (hypolimnion) layers are distinguished, in which the density gradients are small. Between them is a layer of water (metalimnion), within which the density gradient is great. In the near-bottom layer, hydrogen sulphide accumulates and there is no oxygen. One-dimensional mathematical models are used to determine the dynamics of the vertical thermohaline structure of the salt lake Uchum. Two periods in the annual regime are considered: the period of the absence of the ice cover (IC) and the period with the existence of the IC. The vertical distributions of temperature and water salinity in Lake Uchum have been calculated in different seasons. The results of the calculations are consistent with the data of field measurements.

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Держатели документа:
Inst Computat Modelling SB RAS, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.
Inst Biophys SB RAS, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Belolipetskii, Victor M.; Genova, Svetlana N.; Degermendzhy, Andrey G.; Zykov, Vladimir V.; Rogozin, Denis Yu; RFBR [16-05-00091]; Russian Foundation for Basic Research; government of the region of the Russian Federation [18-45-243002]

    Analysis of the influence of abiotic factors on the functional activity of plankton communities of the Krasnoyarsk reservoir
[Text] : доклад, тезисы доклада / P. Postnikova, A. Korobko, G. Makarskaya // International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM : 18 / 18th International Multidisciplinary Scientific Geoconference, SGEM 2018 (2018 ; 02.07 - 08.07 ; Albena). - 2018. - 18DOI 10.5593/sgem2018/3.1/S12.007 . -
Аннотация: The main task of complex environmental monitoring is evaluating the state of an aquatic system and state prediction of ecosystem links under different levels of water supply, anthropogenic influence and climatic fluctuations. The paper analyzes the inter-annual dynamics of functional activity of bacterio – and phytoplankton of the Krasnoyarsk reservoir depending on abiotic factors (reservoir filling level and temperature conditions). The data have been obtained from series of regular observations during the growing season in the 2000 – 2017. In the work, distribution of concentration of chlorophyll "a" and photosynthetic activity of the phytoplankton, production characteristics of bacterioplankton and biochemical oxygen demand (BOD5) are presented. The analysis is carried out in the model-driven system of support of hydrobiological studies of the Krasnoyarsk reservoir by the method of k-means. Systematization of accumulated data of scientific research has become a basis for a sequence of long-term investigations, a comparative analysis of data from related studies and data analysis.

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Источник статьи

Держатели документа:
Institute of Computational Modeling SB RAS

Доп.точки доступа:
Postnikova, P.; Korobko, A.; Makarskaya, G.; 18th International Multidisciplinary Scientific Geoconference, SGEM 2018(2018 ; 02.07 - 08.07 ; Albena)
Нет сведений об экземплярах (Источник в БД не найден)
591.11
А 64

    АНАЛИЗ ФУНКЦИОНАЛЬНОЙ АКТИВНОСТИ КЛЕТОК КРОВИ КУР ПРИ ВАКЦИНАЦИЯХ
[Текст] : статья / Галина Владимировна Макарская, Светлана Вениаминовна Тарских, Евгения Геннадьевна Турицына // Ветеринарная патология. - 2013. - № 3. - С. 65-69 . - ISSN 1682-5616
УДК

Аннотация: Исследование влияния многократных антигенных стимуляций живыми вирусвакцинами на способность клеток цельной крови кур генерировать активные формы кислорода (АФК) методом люминол- и люцигенинзависимой хемилюминесценции выявило закономерное изменение кинетики респираторного взрыва и снижение индекса активации продукции первичных (O2-) и вторичных (H2O2, OH-, HClO-) АФК в ответ на антигенную стимуляцию in vitro, что свидетельствует о снижении неспецифической резистентности организма на фоне формирующегося специфического иммунитета.
The research of influence of the repeating antigenic stimulations of the hens by alive virus-vaccine on ability of whole blood cells of hens to generate active forms of oxygen (ROS) by method of luminol- and lucigenin depending chemiluminescence has revealed natural change of the kinetics of the respiratory explosion and decrease in an index of activation of production primary (O2-) and secondary (H2O2, OH-, HClO-) ROS in reply to antigenic stimulation in vitro with increase in number of immunizations. That testifies about decreasing in nonspecific resistance of an organism on a background of just forming specific immunity.

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Держатели документа:
ИВМ СО РАН
Институт прикладной биотехнологии и ветеринарной медицины ФГБОУ ВПО «Красноярский государственный аграрный университет»)
Международный научный центр исследований экстремальных состояний организма при Президиуме ФГБУ науки Красноярский научный центр СО РАН

Доп.точки доступа:
Макарская, Галина Владимировна; Makarskaya G.V.; Тарских, Светлана Вениаминовна; Tarskikh S.V.; Турицына, Евгения Геннадьевна; Turitsyna E.G.

    Kinetics of formation of reactive oxygen species by blood cells when exposed to ultra-low doses of ionizing radiation
/ A. S. Fedotova [et al.] // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2019. - Vol. 315: International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH 2019 (20 June 2019 through 22 June 2019, ) Conference code: 152072, Is. 4. - Ст. 042017, DOI 10.1088/1755-1315/315/4/042017 . -
Аннотация: The article contains the results of hematological, immunological and chemiluminescent analysis of the functional activity of peripheral blood cells of five-year-old lactating cows from the central regions of the Krasnoyarsk Territory (Siberia, Russia) with different radiation status, at which the radiation doses of animals were 0.02, 0.17 and 0.21 mSv per year. It was established that small doses of radiation at 0.17 mSv per year and 0.21 mSv per year affect hematological parameters, increase the phagocytic activity of blood leukocytes and change the kinetics of the formation of active oxygen forms by blood cells, which is manifested as an increase in the time of formation of the maximum kinetics of spontaneous and activated secondary radicals, reduction of the total production of secondary radicals in the antigenic activation of blood cells in vitro and an increase in the volume of spontaneously produced primary radicals. © 2019 IOP Publishing Ltd. All rights reserved.

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Держатели документа:
Krasnoyarsk State Agrarian University, 90 Mira ane., Krasnoyarsk, 660049, Russian Federation
Institute of Computational Modeling SB RAS, 50/44 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
ISC Research Center for Extreme States of the Body at the Presidium of the FIC KSC SB RAS, 50/12 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fedotova, A. S.; Turitsina, E. G.; Makarskaya, G. V.; Tarskikh, S. V.

    Characteristics of the zoobenthos communities in the mountain rivers of the yenisei basin
/ A. Andrianova // International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM : International Multidisciplinary Scientific Geoconference, 2019. - Vol. 19: 19th International Multidisciplinary Scientific Geoconference, SGEM 2019 (30 June 2019 through 6 July 2019, ) Conference code: 150487, Is. 3.1. - P81-88, DOI 10.5593/sgem2019/3.1/S12.011 . -
Аннотация: In 2015, zoobenthos communities in the river Yenisei (upper and middle course) and in its tributaries (rivers Abakan, Mana, Kan, Agul, Kungus) was studied. All watercourses are mountain rivers, in the bottom fauna of which lithoreophilic organisms predominate, populating stony soils in a large current, at low water temperatures and favorable oxygen conditions. In zoobenthos, 231 species of macroinvertebrates were found, widely distributed in the Palaearctic and Holarctic regions. Dominant complexes were characterized by variability with the distance from river sources. In the river Yenisei benthos species composition expanded from the upstream (48 species) to the lower reaches (69 species). In the upper reaches of the Yenisei (area 1 - from the Kyzyl city to the city of Shagonar) the core of the benthic communities was represented by mayflies, caddis flies and chironomids. Downstream (area 2 - from the dam of the Mainskaya hydro power station to the Abakan city) the determining factor for the formation of the zoobenthos structure was the abundance of phytocenoses, where the Baikalian amphipods Gmelinoides fasciatus dominated. In the zoobenthos of the Middle Yenisei (area 3 - from the dam of the Krasnoyarsk Hydroelectric Power Station to the mouth of the Angara River), the chironomids took the leading positions. The quantitative distribution of the bottom fauna in the Yenisei was characterized by low values in the upper reaches (612 ind./m2and 4.2 g/m2) and high values in area 2 (5.5 thousand ind./m2and 19.5 g/m2). In the middle course of the Yenisei in area 3, the density of benthic communities (2.8 thousand ind./m2and 10.5 g/m2) is quite consistent with our earlier studies in the beginning of 2000s - 3.5 thousand ind./m2and 10.8 g/m2. In the tributaries of the Yenisei, the benthos species composition is more diverse than in the Yenisei; maximum values were in the rivers Mana and Kan (110 and 103 species, respectively). Bottom communities are represented predominantly by chironomids and mayflies, in the river Kan caddis flies complemented the quantity. The quantitative distribution of the bottom fauna in the tributaries of the Yenisei was heterogeneous. The smallest abundance (577 ind./m2) was recorded in the river Abakan, that belongs to the basin of the Upper Yenisei. The maximum abundance (2.8 thousand ind./m2) was found in the river Mana flowing into the Yenisei above Krasnoyarsk (basin of the Middle Yenisei). In the Kan River, which flows into the Yenisei below Krasnoyarsk, the abundance of benthos is comparable to its tributaries Agul and Kungus (1.2-1.9 thousand ind./m2). The distribution of biomass in the studied water streams depended on the taxonomic structure of benthic communities. The maximum values (10.1 and 12.3 g/m2) were found in the rivers of the Middle Yenisei - Man and Kan, and are associated with the dominance of caddis flies. In the rivers Abakan, Agul and Kungus biomass on average did not exceed 8 g/m2, while the contribution of stoneflies is higher than in other rivers. © SGEM2019.

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Держатели документа:
Institute of Computational Modeling, The Siberian Branch, The Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk branch of VNIRO («Scientific Research Institute of Ecology of Fishery Reservoirs»), Krasnoyarsk, Russian Federation

Доп.точки доступа:
Andrianova, A.

    An impact of low doses radiation on the kinetics of reactive oxygen species generation in sheep peripheral blood
/ A. S. Fedotova, G. V. Makarskaya, S. V. Tarskikh [et al.] // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2020. - Vol. 421: 2nd International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH-II 2019 (13 November 2019 through 14 November 2019, ) Conference code: 156846, Is. 5. - Ст. 052016, DOI 10.1088/1755-1315/421/5/052016 . -
Аннотация: The work is devoted to measuring the impact of low doses of ionizing radiation on the kinetics of reactive oxygen species (ROS) generation in sheep peripheral blood. In the evaluation of the OAF production intensity level by the peripheral blood cells in the animals existing on the territories with different radiation tense by chemiluminescent method, it was established that having increased dose tense from 0,91 till 1.55 mGy/year, the amplitude of maximum intensity credibly increased, as well as the total amount of spontaneous and antigen activated primary lucigenin dependent ROS production and antigen activated secondary luminol dependent ROS with time decrease for the maximum achievement of the respiratory explosion. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Krasnoyarsk State Agrarian University, 90 Mira lane., Krasnoyarsk, 660049, Russian Federation
Institute of Computational Modelling, SB RAS, 50/44 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
ISC of Researches of Extreme Conditions of An Organism at the Presidium of the FIC KSC SB RAS, 50/12 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fedotova, A. S.; Makarskaya, G. V.; Tarskikh, S. V.; Turitcyna, E. G.; Kolesnikov, V. A.