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Laser image recording on detonation nanodiamond films [Text] / G. M. Mikheev [et al.] // Quantum Electron. - 2014. - Vol. 44, Is. 1. - P1-3, DOI 10.1070/QE2014v044n01ABEH015299. - Cited References: 34. - This work was supported by the Russian Foundation for Basic Research (Grant No. 13-02-96016 r_ural_ a) and the Presidium of the Ural Branch of the Russian Academy of Sciences (Project No. 12-C-1-1003). . - ISSN 1063-7818. - ISSN 1468-4799

РУБ Engineering, Electrical & Electronic + Physics, Applied
Рубрики:
THERMOCHEMICAL TECHNOLOGY
   DIAMOND FILMS
   NITROGEN
   CARBON
Кл.слова (ненормированные):
detonation nanodiamond -- films -- laser blackening -- Raman scattering -- luminescence -- image recording
Аннотация: A focused He - Ne laser beam is shown to cause local blackening of semitransparent detonation nanodiamond (DND) films at incident power densities above 600 W cm(-2). Data obtained with a Raman spectrometer and low-power 632.8-nm laser source indicate that the blackening is accompanied by a decrease in broadband background luminescence and emergence of sharp Raman peaks corresponding to the structures of nanodiamond and sp(2) carbon. The feasibility of image recording on DND films by a focused He - Ne laser beam is demonstrated.

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Держатели документа:
[Mikheev, G. M.
Mikheev, K. G.
Mogileva, T. N.] Russian Acad Sci, Ural Branch, Inst Mech, Izhevsk 426067, Russia
[Puzyr, A. P.
Bondar, V. S.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Mikheev, G.M.; Mikheev, K.G.; Mogileva, T.N.; Puzyr, A.P.; Bondar, V.S.; Russian Foundation for Basic Research [13-02-96016 r_ural_a]; Presidium of the Ural Branch of the Russian Academy of Sciences [12-C-1-1003]

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Spatial biodiversity of bacteria along the largest Arctic river determined by next-generation sequencing [Text] / O. V. Kolmakova [et al.] // FEMS Microbiol. Ecol. - 2014. - Vol. 89, Is. 2. - P442-450, DOI 10.1111/1574-6941.12355. - Cited References: 36. - This work was supported by the Attracting Leading Scientists to Russian Educational Institutions Program of the Russian Federation, agreement 11.G34.31.0014, and by the project G-1 of Siberian Federal University, carried out according to Federal tasks of the Ministry of Education and Science of Russian Federation. . - ISSN 0168-6496. - ISSN 1574-6941

РУБ Microbiology
Рубрики:
DISSOLVED ORGANIC-MATTER
   INLAND WATERS
   CARBON
   BACTERIOPLANKTON
   COMMUNITY
   GREENGENES
   ECOSYSTEM
   RESERVOIR
   PATTERNS
   PRIMERS
Кл.слова (ненормированные):
bacterial community -- diversity -- 16S rRNA gene -- Yenisei River
Аннотация: The biodiversity of bacterial communities along the Yenisei River at section c. 1800 km was studied using next-generation sequencing of 16S rRNA genes and common biodiversity indices. Overall, 3022 unique operational taxonomic units were identified. Actinobacteria and Proteobacteria were the dominant phyla at all sampling sites. The highest alpha-diversity values were found in the middle section of the studied river. The beta-diversity of bacterial assemblages in the river was related to the surrounding landscape (biome): three distinctly different bacterial assemblages occurred in sections of the river, situated in mountain taiga, plain taiga and in a region of permafrost, covered by forest-tundra and tundra. Tributaries arising from these different landscapes likely contributed substantially to the variations of Yenisei bacterial communities. In contrast to a prediction of the river continuum concept, the proportion of photoautotrophic Cyanobacteria in bacterial assemblages did not increase downstream, but peaked at the middle section.

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Держатели документа:
[Kolmakova, Olesya V.
Gladyshev, Michail I.] Siberian Fed Univ, Krasnoyarsk, Russia
[Kolmakova, Olesya V.
Gladyshev, Michail I.
Trusova, Maria Y.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia
[Rozanov, Alexey S.
Peltek, Sergey E.] Russian Acad Sci, Inst Cytol & Genet, Siberian Branch, Novosibirsk 630090, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakova, O.V.; Gladyshev, M.I.; Rozanov, A.S.; Peltek, S.E.; Trusova, M.Y.; Attracting Leading Scientists to Russian Educational Institutions Program of the Russian Federation [11.G34.31.0014]; Siberian Federal University

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A continual model of soil organic matter transformations based on a scale of transformation rate [Text] / S. I. Bartsev, A. A. Pochekutov // Ecol. Model. - 2015. - Vol. 302. - P25-28, DOI 10.1016/j.ecolmodel.2015.01.030. - Cited References:18. - This work is supported by Basic Research Program of the Presidium of RAS Project No. 12 and Integration Project of SB RAS No. 21. . - ISSN 0304-3800. - ISSN 1872-7026

РУБ Ecology
Рубрики:
CARBON
   DECOMPOSITION
   DYNAMICS
   NITROGEN
   DECAY
Кл.слова (ненормированные):
Soil organic matter -- Continual model of soil -- Soil formation
Аннотация: The study proposes a model of transformation and decomposition of soil organic matter, based on using the rate of matter transformation as a continual scale of its transformation degree. The model is represented by one partial derivative differential equation that has an analytical solution. This model has only two adjustable parameters, while the number of experimentally determined parameters depends on how detailed the description of the plant litter is supposed to be. The model has been tested, and model parameters have been evaluated by comparing model predictions with the literature data on the stock of soil organic matter in different types of ecosystems. (C) 2015 Elsevier B.V. All rights reserved.

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Scopus
Держатели документа:
Inst Biophys SB RAS, Krasnoyarsk, Russia
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk, Russia

Доп.точки доступа:
Bartsev, Sergey I.; Pochekutov, Aleksei A.; Basic Research Program of the Presidium of RAS Project [12]; Integration Project of SB RAS [21]

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Detonation Nanodiamonds as a New Tool for Phenol Detection in Aqueous Medium / N. Ronzhin, A. Puzyr, V. Bondar // J. Nanosci. Nanotechnol. - 2018. - Vol. 18, Is. 8. - P5448-5453, DOI 10.1166/jnn.2018.15382. - Cited References:27. - This work was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences (Project No. 0356-2016-0709) and Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research (Project No. 16-43-243027). . - ISSN 1533-4880. - ISSN 1533-4899

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials
Рубрики:
ENVIRONMENTAL-POLLUTANTS
   DRUG-DELIVERY
   PARTICLES
   CARBON
Кл.слова (ненормированные):
Detonation Nanodiamonds -- Catalytic Activity -- Metal Ions -- Azo Coupling -- Reaction -- Phenol Detection
Аннотация: This paper demonstrates the effectiveness of using detonation nanodiamonds (DNDs) for detecting phenol in aqueous medium. The study has shown that the catalytic effect of DNDs in the oxidative azo coupling reaction (phenol-4-aminoantipyrine-hydrogen peroxide) is produced by trace amounts of iron and copper ions adsorbed on the surface of nanoparticles. The effectiveness of DNDs as a catalyst is determined by the amounts of these adsorbates and can be enhanced by a factor of two by additional adsorption of these ions onto the nanoparticles. A rise in the temperature of the ONO-catalyzed azo coupling reaction leads to a considerable (4.5-fold) increase in the reaction product yield. DNDs used to detect phenol in aqueous medium enable a linear increase in the yield of the product of the azo coupling reaction at concentrations of the analyte of between 0.05 and 10 mu g/mlThe study demonstrates that DNDs can be reused to detect phenol in water samples.

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Держатели документа:
RAS, SB, Krasnoyarsk Sci Ctr, Inst Biophys,Fed Res Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Ronzhin, Nikita; Puzyr, Alexey; Bondar, Vladimir; Russian Academy of Sciences [0356-2016-0709]; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology [16-43-243027]

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STOICHIOMETRIC COMPOSITION OF SESTON IN LITTORAL AND PELAGIAL ZONES OF SHALLOW LAKE OBSTERNO (BELARUS) / Z. F. Buseva [и др.] // Dokl. Nat. Akad. Nauk Belarusi. - 2018. - Vol. 62, Is. 3. - С. 304-310, DOI 10.29235/1561-8323-2018-62-3-304-310. - Cited References:15. - This work was partially supported by the BRFFR (grant No. (sic)17-037). We thank for the collaboration with Narach Biological Station of Belarusian State University and thank it's Director Dr. T. V. Zhukova, scientific and technological staff -E. I. Lapitskaja and E. A. Zhuravliova for their fruitfull help. . - ISSN 1561-8323. - ISSN 2524-2431

РУБ Multidisciplinary Sciences
Рубрики:
NUTRIENT LIMITATION
   PHOSPHORUS
   NITROGEN
   ZOOPLANKTON
   CARBON
   MARINE
Кл.слова (ненормированные):
seston -- carbon -- nitrogen -- phosphorus -- stoichiometry -- littoral -- pelagial -- macrophyte beds
Аннотация: We estimated the seston elemental composition (C, N, P) and its ratio in pelagic and littoral zones of mesotrophic shallow Lake Obsterno during two contrasting seasons, as well as the influence of macrophyte beds on the seston stoichiometry. In the both pelagial and littoral zones in summer the C : N ratio was small, 4.62 and 7.05 respectively. But it increased slightly during autumn to 5.66 in pelagic samples against 8.33 in littoral ones. The large N : P ratio and the small phosphorus content specially in the macrophyte covered littoral zone equal to 57.7 in July against 22.47 in September suggest a high level of phosphorus limitation in the littoral locations as a possible mediated reason suppressing zooplankton abundance in summer. Our results in the both pelagial and littoral habitat showed a highly P limited situation in which the N : P ratio was larger in littoral with macrophyte than in pelagial zones. The obtained data of littoral seston stoichiometry were recorded for the first time and exceeded the classical Redfield ratio. The elemental imbalance between macrophyte covered littoral and pelagial suggest that nutrients, especially P, are more limiting in macrophyte beds in summer due to the resource competition between phytoplankton and macrophytes for nutrients, a poor food quality, low zooplankton abundance, as well as its poor taxon-specific elemental ratio in summer.

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Держатели документа:
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, 27 Akad Skaya Str, Minsk 220072, BELARUS.
Naroch Biol Stn, Naroch, BELARUS.
Russian Acad Sci, Siberian Branch, Inst Biophys, 50-50 Akademgorodok Str, Krasnoyarsk 660036, Russia.
Naroch Biol Stn, Miadel Dist 220095, Minsk Region, BELARUS.

Доп.точки доступа:
Buseva, Zhanna F.; Farahani, Shabnam Bahman Gazerani; Veras, Yulia K.; Kolmakova, Anzhelika A.; Sushchik, Nadezhda N.; BRFFR [17-037]

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The Influence of Temperature and Humidity on Greenhouse Gas Emission in Experiments on Imitation of the Full Vegetation Cycle of Tundra Ecosystems / Y. V. Barkhatov [et al.] // Dokl. Earth Sci. - 2018. - Vol. 483, Is. 2. - P1539-1541, DOI 10.1134/S1028334X18120115. - Cited References:15. - This study was supported by the Russian Foundation for Basic Research, the Krasnoyarsk Krai Government and the Krasnoyarsk Regional Fund of Science (project no. 17-45-240884), the Russian Foundation for Basic Research (project no. 16-04-01677-a), and the Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, governmental assignment, theme no. 56.1.4. for 2013-2020. . - ISSN 1028-334X. - ISSN 1531-8354

РУБ Geosciences, Multidisciplinary
Рубрики:
POLYGONAL TUNDRA
   METHANE EMISSION
   CARBON
   DELTA
   LAKES
Аннотация: Laboratory experiments were conducted in a hermetically sealed growth chamber with two soil samples obtained from the arctic tundra zone with different levels of moisture. Samples were maintained at a growing season typical of the region from which they were taken, and for the sample with a high level of moisture it was made twice: with the temperature in accord with natural conditions and one increased by 2 degrees C. It has been shown that heating of the overmoistened tundra soil by 2 degrees C can increased the average carbon dioxide emissions by almost two times (from 75 to 100-150 mg m(-2) h(-1)). Upon the application of heat, no significant increase in methane emission was observed.

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Scopus
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Sukachev Inst Forests, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Barkhatov, Yu. V.; Ushakova, S. A.; Shikhov, V. N.; Evgrafova, S. Yu.; Tikhomirov, A. A.; Degermendzhi, A. G.; Russian Foundation for Basic Research; Krasnoyarsk Krai Government; Krasnoyarsk Regional Fund of Science [17-45-240884]; Russian Foundation for Basic Research [16-04-01677-a]; Institute of Biophysics, Siberian Branch, Russian Academy of Sciences [56.1.4.]

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Zooplankton carcasses stimulate microbial turnover of allochthonous particulate organic matter / D. Neubauer, O. Kolmakova, J. Woodhouse [et al.] // ISME J. - 2021, DOI 10.1038/s41396-020-00883-w. - Cited References:83. - Open Access funding enabled and organized by Projekt DEAL. . - Article in press. - ISSN 1751-7362. - ISSN 1751-7370

РУБ Ecology + Microbiology
Рубрики:
FRESH-WATER
   SEASONAL-CHANGES
   CARBON
   LAKE
   DECOMPOSITION
   DEGRADATION
Аннотация: Carbon turnover in aquatic environments is dependent on biochemical properties of organic matter (OM) and its degradability by the surrounding microbial community. Non-additive interactive effects represent a mechanism where the degradation of biochemically persistent OM is stimulated by the provision of bioavailable OM to the degrading microbial community. Whilst this is well established in terrestrial systems, whether it occurs in aquatic ecosystems remains subject to debate. We hypothesised that OM from zooplankton carcasses can stimulate the degradation of biochemically persistent leaf material, and that this effect is influenced by the daphnia:leaf OM ratio and the complexity of the degrading microbial community. Fresh Daphnia magna carcasses and C-13-labelled maize leaves (Zea mays) were incubated at different ratios (1:1, 1:3 and 1:5) alongside either a complex microbial community (50 mu m) or solely bacteria (0.8 mu m). C-13 stable-isotope measurements of CO2 analyses were combined with phospholipid fatty acids (PLFA) analysis and DNA sequencing to link metabolic activities, biomass and taxonomic composition of the microbial community. Our experiments indicated a significantly higher respiration of leaf-derived C when daphnia-derived OM was most abundant (i.e. daphnia:leaf OM ratio of 1:1). This process was stronger in a complex microbial community, including eukaryotic microorganisms, than a solely bacterial community. We concluded that non-additive interactive effects were a function of increased C-N chemodiversity and microbial complexity, with the highest net respiration to be expected when chemodiversity is high and the degrading community complex. This study indicates that identifying the interactions and processes of OM degradation is one important key for a deeper understanding of aquatic and thus global carbon cycle.

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Держатели документа:
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Expt Limnol, D-16775 Stechlin, Germany.
Potsdam Univ, Inst Biochem & Biol, D-14476 Potsdam, Germany.
RAS, Inst Biophys SB, Fed Res Ctr, Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk, Russia.
Helmholtz Ctr Potsdam, Sect Organ Geochem 32, GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany.
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Chem Analyt & Biogeochem, Muggelseedamm 310, D-12587 Berlin, Germany.

Доп.точки доступа:
Neubauer, Darshan; Kolmakova, Olesya; Woodhouse, Jason; Taube, Robert; Mangelsdorf, Kai; Gladyshev, Michail; Premke, Katrin; Grossart, Hans-Peter; Projekt DEAL

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