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The effect of radionuclide and heavy metal contamination of the Yenisei River on cytogenetics of aquatic plant Elodea canadensis / A. Bolsunovsky [et al.] // Radioprotection. - 2009. - Vol. 44, Is. 5. - P83-88, DOI 10.1051/radiopro/20095021 . - ISSN 0033-8451
Аннотация: The study was done to determine concentrations of radionuclides and heavy metals and to evaluate the frequency of chromosomal aberrations in samples of Elodea canadensis, a submerged plant, collected in different parts of the Yenisei River. Samples were collected in the area subjected to radioactive impact of theMining-and-Chemical Combine (MCC) at Zheleznogorsk and in the control areas, upstream of the MCC. The investigations showed that Elodea biomass in the area affected by MCC operation contained a long inventory of artificial radionuclides typical of the MCC discharges. Upstream of the MCC, in the control sampling areas, the sediments and the Elodea biomass contained only one artificial radionuclide - 137Cs. Thus, the exposure doses to Elodea shoots and roots upstream of the MCC are small (not more than 8 ?Gy/d) and the main contribution to them is made by natural radionuclides. At the MCC discharge site (the village of Atamanovo) and downstream of it, the total dose rate increases almost an order of magnitude, reaching its maximal values - 72 ?Gy/d for Elodea shoots and 58 ? Gy/d for roots. Cytogenetic investigations of Elodea roots showed that at the MCC discharge site (the village of Atamanovo) and downstream of it the occurrence of chromosomal aberrations in ana-telophase and metaphase cells of Elodea was considerably higher than in the control area. It is highly probable that this simultaneous dramatic increase in the total exposure rate and the occurrence of chromosomal aberrations in Elodea is associated with the radiation factor. It is suggested that Elodea is affected not only by the radiation factor but also by the chemical factor - toxicity of heavy metals. В© 2009 EDP Sciences.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodnyi Ave., 660041 Krasnoyarsk, Russian Federation
Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Bolsunovsky, A.; Muratova, E.; Sukovaty, A.; Kornilova, M.

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Study of the dielectric permeability in the superhigh frequency range of a degraded polyoxybutyrate biopolymer / G. A. Beliaev [и др.] // Biofizika. - 2000. - Vol. 45, Is. 4. - С. 636-640 . - ISSN 0006-3029
Кл.слова (ненормированные):
biopolymer -- hydroxybutyric acid -- Alcaligenes -- article -- chemistry -- electric conductivity -- radiofrequency radiation -- Alcaligenes -- Biopolymers -- Electric Conductivity -- Hydroxybutyrates -- Radio Waves
Аннотация: The dielectric permeability of the degradable biopolymer polyhydroxybutyrate synthesized by hydrogen-oxidizing bacteria Alcaligenes eutrophus was investigated by the resonance method using original highly sensitive microstrip sensors. For the first time, a linear growth of dielectric permeability (delta epsilon/delta T = 7 x 10(-4) degree-1) due to the flexibility of the polymer chain in the temperature range from 10 to 70 degrees C was revealed. The energy of a bend of the nearest fragments was evaluated (E = 392 K), and its correspondence to the energies of bends of the alcyl groups of low-molecular substances like liquid crystals was established. It was shown that at low values of dielectric permeability in the high-frequency range (epsilon' = 2.25 +/- 0.02), which are stable, in a wide range of frequencies of the electromagnetic field (1 MHz - 1 Hz), polyoxybutyrate can be used in the microwave equipment.

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

Доп.точки доступа:
Beliaev, G.A.; Volova, T.G.; Drokin, N.A.; Shepov, V.N.

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Benefit-risk ratio of food fish intake as the source of essential fatty acids vs. heavy metals: A case study of Siberian grayling from the Yenisei River / M. I. Gladyshev [et al.] // Food Chemistry. - 2009. - Vol. 115, Is. 2. - P545-550, DOI 10.1016/j.foodchem.2008.12.062 . - ISSN 0308-8146
Кл.слова (ненормированные):
Benefit-risk ratio -- Essential fatty acids -- Grayling -- Hazard quotient -- Heavy metals
Аннотация: A formula was derived for quantification of benefit-risk ratio (hazard quotient) for the intake of a product containing essential polyunsaturated fatty acids vs. heavy metals. The quotient was used in a three year case study of the contents of essential fatty acids and heavy metals in Siberian grayling, the main food fish from the middle section of the Yenisei River. As found, in general the fish intake was potentially very beneficial for human health, except on a few occasions, when the risk overweighed the benefit because of high contents of chromium in the fish muscle tissue. The data demonstrated the necessity for regular monitoring of the hazard quotients for food fish in wild conditions, based at least on monthly sampling frequency. В© 2008 Elsevier Ltd. All rights reserved.

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

Доп.точки доступа:
Gladyshev, M.I.; Sushchik, N.N.; Anishchenko, O.V.; Makhutova, O.N.; Kalachova, G.S.; Gribovskaya, I.V.

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Ocean processes revealing by seasonal dynamics of surface chlorophyll concentration (by satellite data) / A. Shevyrnogov, G. Vysotskaya // Proceedings of SPIE - The International Society for Optical Engineering. - 2011. - Vol. 8175: Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011 (21 September 2011 through 22 September 2011, Prague) Conference code: 87287. - Ст. 1, DOI 10.1117/12.897819
Кл.слова (ненормированные):
Chlorophyll concentration -- MODIS -- Ocean -- Sea surface temperature -- SeaWiFs -- Chlorophyll concentration -- MODIS -- Ocean -- Sea surface temperatures -- SeaWiFs -- Atmospheric temperature -- Band structure -- Chlorophyll -- Dynamics -- Ecology -- Hydrophilicity -- Productivity -- Remote sensing -- Satellites -- Sea ice -- Space optics -- Spatial distribution -- Surface properties -- Time series -- Time series analysis -- Oceanography
Аннотация: Continuous monitoring of phytopigment concentrations and sea surface temperature in the ocean by space-borne methods makes possible to estimate ecological condition of biocenoses in critical areas. In the papers of the authors (Shevyrnogov A.P., Vysotskaya G.S., Gitelzon J.I. 1996) existence of zones, which are quasi-stationary with similar seasonal dynamics of chlorophyll concentration at surface layer of ocean, was shown. Results were obtained on the base of processing of time series of satellite images SeaWiFS. It was shown that fronts and frontal zones coincide with dividing lines between quasi-stationary areas, especially in areas of large oceanic streams. The usage of the seasonal dynamics gives a possibility to circumvent influence of high-frequency component in investigation of dynamics of spatial distribution of surface streams. In addition, an analyses of unstable ocean productivity phenomena, stood out time series of satellite images, showed existence of areas with different types of instability in the all Global ocean. They are observed as adjacent nonstationary zones of different size, which are associated by different ways with known oceanic phenomena. It is evident that dynamics of a spatial distribution of biological productivity and sea surface temperature can give an additional knowledge of complicated picture of surface oceanic layer hydrology. В© 2011 SPIE.

Scopus
Держатели документа:
Institute of Biophysics of SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Institute of Computational Modeling of SB RAS, Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, Kyrensky st., 26, Krasnoyarsk, 660074, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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The influence of a monolayer of an aliphatic acid on temperature oscillation in the surface layer of water / M. I. Gladyshev, L. A. Levin, N. N. Sushchik // Izvestiya - Atmospheric and Ocean Physics. - 1996. - Vol. 32, Is. 3. - P378-380 . - ISSN 0001-4338
Кл.слова (ненормированные):
aliphatic acid -- surface films -- temperature -- thermal spots
Аннотация: The influence of a monolayer of a palmitic acid on amplitude-frequency characteristics of temperature oscillations caused by thermal spots of a surface film was experimentally determined in a Langmuir tank. An analysis of the power spectra showed that the temperature oscillations were multimodal. In addition, no consistant differences between the spectrum for a pure surface and the spectrum for a surface covered by an acid monolayer were found. A roughened gain-frequency factor was found that is equal to the ratio of the average period between the thermal spots to the dispersion of the time series of temperature oscillations. The factor significantly differed over a wide range of temperatures for a pure surface and for a surface covered with the monolayer. The experimental results do not confirm the existence of a leading frequency in the temperature oscillations of a cold surface film due to an appearance of thermal spots.

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

Доп.точки доступа:
Gladyshev, M.I.; Levin, L.A.; Sushchik, N.N.

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The spectral characteristics of variations in the temperature of a cold surface film of water / N. N. Sushchik, L. A. Levin, M. I. Gladyshev // Water Resources. - 1998. - Vol. 25, Is. 2. - P175-179 . - ISSN 0097-8078
Аннотация: Laboratory research into the spectral characteristics of variations in the temperature of a cold surface film of water was made with the use of specialized measuring equipment incorporating a mesh of sensors simulating the coverage of an infrared radiometer. Variations in the water surface film temperature are found to be multimodal, which makes it impossible to reveal the dependence of the frequency response function on the temperature difference between the film and the body of water. В© 1998 MAHK Hayka/Interperiodica Publishing.

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

Доп.точки доступа:
Sushchik, N.N.; Levin, L.A.; Gladyshev, M.I.

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Bioluminescence of bacteria: a rhythmic process / L. Y. Berzhanzkaya, I. I. Gitel'zon, A. M. Fish // BIOPHYSICS. - 1973. - Vol. 18, Is. 2. - P293-301 . - ISSN 0006-3509
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Kirenskii Inst. Phys., USSR Acad. Sci., Siberian Div., Krasnoyarsk, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Berzhanzkaya, L.Y.; Gitel'zon, I.I.; Fish, A.M.

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Heterogeneity of the populations of marine luminescent bacteria Photobacterium leiognathi under different conditions of cultivation / S. E. Medvedeva, O. A. Mogil'naya, L. Yu. Popova // Microbiology. - 2006. - Vol. 75, Is. 3. - P292-299, DOI 10.1134/S002626170603009X . - ISSN 0026-2617
Кл.слова (ненормированные):
Bioluminescence -- Luminescent bacteria -- Morphology of colonies -- Bacteria (microorganisms) -- Photobacterium leiognathi
Аннотация: Manifestation of pleiotropic effects in the isogenic variants of the luminescent bacterium Photobacterium leiognathi 54 was investigated. The decrease or increase of the expression level of bioluminescence was caused by changes in lux operon regulation. The dynamics of the bioluminescence of dark and dim variants did not differ from the dynamics of the initial luminescent variant, but dependence of the level of luminescence intensity on the exogenous autoinducer of the lux operon was revealed. The investigated variants of P. leiognathi 54 inherited fairly stable morphological characteristics, colony architectonics, level of luminescence, and activity of some enzymes; variants with reduced bioluminescence formed colonies of the S type. Stable bright variants with S-and R-type colonies appeared both in the initial strain population and in the dark variant population, but with smaller frequency. Populations of the bright variant with R-type colonies were most heterogeneous; this can be determined by the lack of glucose repression of the bioluminescence in contrast to other investigated inherited variants of P. leiognathi. В© Pleiades Publishing, Inc., 2006.

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

Доп.точки доступа:
Medvedeva, S.E.; Mogil'naya, O.A.; Popova, L.Yu.

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Investigation the dielectric permeability of the degradable biopolymer polyhydroxybutyrate in the super-high frequency range [Текст] / B. A. Belyaev [и др.] // Biofizika. - 2000. - Vol. 45, Is. 4. - С. 636-640. - Cited References: 11 . - 5. - ISSN 0006-3029

РУБ Biophysics

Кл.слова (ненормированные):
polyhydroxybutyrate -- dielectric permeability
Аннотация: The dielectric permeability of the degradable biopolymer polyhydroxybutyrate synthesized by hydrogen-oxidizing bacteria Alcaligenes eutrophus was investigated by the resonance method using original highly sensitive microstrip sensors. For the first time, a linear growth of dielectric permeability (delta epsilon/deltaT = 7.10(-4) degree(-1)) due to the flexibility of the polymer chain in the temperature range from 10 to 70 degreesC was revealed. The energy of a bend of the nearest fragments was evaluated (E = 392 K), and its correspondence to the energies of bends of the alcyl groups of low-molecular substances like liquid crystals was established. It was shown that at low values of dielectric permeability in the high-frequency range (epsilon' = 2.25 +/- 0.02),which are stable, in a wide range of frequencies of the electromagnetic field (1 MHz - 1 Hz), polyoxybutyrate call be used ill the microwave equipment.

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Belyaev, B.A.; Volova, T.G.; Drokin, N.A.; Shepov, V.N.

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10.

The effect of the size factor of nanodiamonds in suspensions on optical power limiting and nonlinear laser light scattering / G. M. Mikheev [et al.] // Tech. Phys. Lett. - 2013. - Vol. 39, Is. 3. - P229-232, DOI 10.1134/S1063785013030115. - Cited References: 15. - This work was supported by the basic research program of the Ural Branch of the Russian Academy of Sciences, project no. 12-S-1-1003. . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
ONION-LIKE CARBON
NANOTUBES
PARTICLES
Аннотация: The results of experimental studies of optical power limiting (OPL) and nonlinear light scattering (NLS) at a wavelength of 532 nm in suspensions of detonation-synthesis modified nanodiamonds (MNDs) with different grain-size compositions are described. It is found that, at the same nanoparticle concentration, OPL and NLS are more efficient in suspensions with large MNDs. It is shown that MND suspensions can exhibit a stable long-term operation as OPL in a field of laser pulses with a power density of 0.2 GW/cm(2) at a repetition frequency of 1 Hz.

Держатели документа:
[Mikheev, G. M.] Russian Acad Sci, Inst Mech, Ural Branch, Izhevsk 426067, Russia
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Univ Eastern Finland, Joensuu 80101, Finland
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Mikheev, G.M.; Puzyr', A.P.; Vanyukov, V.V.; Mogileva, T.N.; Bondar', V.S.

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11.

Planar bandpass filter with 100-dB suppression up to Tenfold passband frequency [] / B. A. Belyaev [et al.] // Prog. Electromagn. Res. C. - 2014. - Vol. 48. - P37-44 . - ISSN 1937-8718
Кл.слова (ненормированные):
Fractional bandwidths -- Microwave bandpass filter -- Optimization rules -- Passband frequencies -- Resonator filters -- Stripline resonators -- Substrate surface -- Suspended substrates -- Microwave filters -- Substrates
Аннотация: This paper proposes a miniature microwave bandpass filter. It comprises quasi-lumped suspended substrate stripline resonators of a new type. Their common substrate consists of two contiguous dielectric layers. Every resonator in the filter has three parallel strip conductors. Two of them are placed on the outer substrate surfaces and the rest is placed inside the substrate. The filter of the sixth order was designed with the use of special optimization rules that are universal for all resonator filters. The substrate of the fabricated filter was made of RT/Duroid 5880 (?r = 2.2, ? = 0.002) with thickness of 0.127mm. It has dimensions of 12 mm ? 45.5 mm. The measured passband has a center frequency of 1.01 GHz, 3-dB fractional bandwidth of 11%, and minimum insertion loss of 1.4dB. The 100-dB upper stopband extends up to 10.5 GHz.

Scopus
Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660074, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Belyaev, B.A.; Serzhantov, A.M.; Tyurnev, V.V.; Bal'Va, Y.F.; Leksikov, A.A.

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12.

A new approach to the study of the statistical properties of gene sequences / A. N. Gorban' [et al.] // Biophysics. - 1993. - Vol. 38, Is. 5. - P. 783-787 . - ISSN 0006-3509
Аннотация: An essentially new method is proposed for studying the statistical properties of gene sequences (g.s.) based on construction of a frequency-correlation dictionary (f.c.d.) for the g.s. being investigated (the f.c.d. is the set of all subsequences (words) with a length from 1 to N together with the frequencies of their encounter in the g.s. studied). It is shown that a measure of the redundancy of the g.s. is the characteristic length of the word d* starting from which all the words in the g.s. are unique, i.e. have the frequency 1. В© 1994.

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

Доп.точки доступа:
Gorban', A.N.; Mirkes, Ye.M.; Popova, T.G.; Sadovskii, M.G.

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13.

The comparative redundancy of genes of various organisms and viruses / A. N. Gorban [и др.] // Genetika. - 1993. - Vol. 29, Is. 9. - P. 1413-1419 . - ISSN 0016-6758
Кл.слова (ненормированные):
article -- dna content -- evolution -- genome -- nonhuman -- restriction mapping -- virus -- amino acid sequence -- comparative study -- gene frequency -- human -- molecular genetics -- nucleotide sequence -- restriction mapping -- virus gene -- Amino Acid Sequence -- Base Sequence -- Comparative Study -- English Abstract -- Gene Frequency -- Genes, Viral -- Human -- Molecular Sequence Data -- Restriction Mapping

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

Доп.точки доступа:
Gorban, A.N.; Mirkes, E.M.; Popova, T.G.; Sadovsky, M.G.

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14.

CORRELATION APPROACH TO COMPARING NUCLEOTIDE-SEQUENCES [Текст] / A. N. GORBAN, T. G. POPOVA, M. G. SADOVSKY // Zhurnal Obshchei Biol. - 1994. - Vol. 55, Is. 04.05.2013. - P. 420-430. - Cited References: 22 . - ISSN 0044-4596

РУБ Biology

Аннотация: A new method of evaluation of similarity between two nucleotide sequences is proposed. It is based on comparing frequency/correlation dictionaries of the sequences under investigation. The dictionary is a set of all strings of various length occurring within the sequences accompanied by their frequencies. The method proposed allows to compare sequences of arbitrary lengths, its advantage is absence of necessity of informal (expert) choice of the best fit. Efficiency of the method is demonstrated by comparison of several human genes and viruses.

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

Доп.точки доступа:
GORBAN, A.N.; POPOVA, T.G.; SADOVSKY, M.G.

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15.

REDUNDANCY OF GENETIC TEXTS [Text] / A. N. GORBAN, T. G. POPOVA, M. G. SADOVSKII // Mol. Biol. - 1994. - Vol. 28, Is. 2. - P. 206-213. - Cited References: 14 . - ISSN 0026-8933

РУБ Biochemistry & Molecular Biology

Кл.слова (ненормированные):
GENE -- CORRELATION -- REDUNDANCY
Аннотация: A new method is proposed for measuring and comparing the redundancy of genetic texts. It is based on compiling for a given text a frequency/correlation dictionary encompassing all the words (subsequences) of length from 1 to N encountered in the text (N is text length); the measure of redundancy is the minimal length at which all words are unique. Preliminary results are reported for different genetic texts.

WOS
Держатели документа:
RUSSIAN ACAD SCI,INST BIOPHYS,KRASNOYARSK 660036,RUSSIA
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
GORBAN, A.N.; POPOVA, T.G.; SADOVSKII, M.G.

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16.

LUMINESCENT BACTERIAL SYMBIONTS AND COMMENSALS OF LUMINESCENT AND NONLUMINESCENT MARINE ANIMALS OF THE INDIAN-OCEAN [Text] / G. A. VYDRYAKOVA [et al.] // Microbiology. - 1995. - Vol. 64, Is. 5. - P. 589-592. - Cited References: 18 . - ISSN 0026-2617

РУБ Microbiology
Рубрики:
BIOLUMINESCENCE
SEAWATER
Аннотация: Approximately 100 fish belonging to 24 families and several representatives of cephalopods, prawns, and euphausiids were investigated for the presence of luminescent bacteria. Species identification of isolated luminescent bacteria was performed, and the frequency and ratio of their occurrence in the gastrointestinal microflora of marine animals were determined. Luminescent bacteria occurred in 23 - 65% of the fish, depending on the habitat depth, and their ratio varied from 8 to 60% of the total gastrointestinal microflora of fish. The free-living luminescent bacteria were found in 50% of the seawater samples from depths down to 1000 m. The luminescent bacterium Photobacterium phosphoreum was dominant among the isolated cultures.

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

Доп.точки доступа:
VYDRYAKOVA, G.A.; KUZNETSOV, A.M.; PRIMAKOVA, G.A.; CHUGAEVA, Y.V.; FISH, A.M.

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17.

REDUNDANCY OF EUKARYOTIC DNA DECREASES AFTER EXCISION OF INTRONS [Text] / T. G. POPOVA, M. G. SADOVSKII // Mol. Biol. - 1995. - Vol. 29, Is. 3. - P. 281-285. - Cited References: 23 . - ISSN 0026-8933

РУБ Biochemistry & Molecular Biology
Рубрики:
SEQUENCES
Кл.слова (ненормированные):
EXON -- INTRON -- WORD -- FREQUENCY -- REDUNDANCY
Аннотация: The article is devoted to analysis of the internal gene structure with respect to redundancy of exons and introns. Human genes with precisely determined exon-intron structure were studied. Redundancy of each exon and intron within a certain gene was measured. In the analyzed human genes, introns were more redundant than exons. Redundancy was determined as the minimal length of a word (oligonucleotide) that is present as a single copy within the nucleotide sequence studied. Mechanisms are discussed that lead to disturbances in the relationships found between the redundancies of exons and introns.

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

Доп.точки доступа:
POPOVA, T.G.; SADOVSKII, M.G.

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18.

The influence of a monolayer of an aliphatic acid on the oscillation of the temperature in the surface layer of water [Текст] / M. I. Gladyshev, L. A. Levin, N. N. Sushchik // Izv. Akad. Nauk. Fiz. Atmos. Okean. Biol. - 1996. - Vol. 32, Is. 3. - P. 410-412. - Cited References: 13 . - ISSN 0002-3515

РУБ Meteorology & Atmospheric Sciences + Oceanography
Рубрики:
VELOCITY
Аннотация: The influence of a monolayer of a palmitic acid on amplitude-frequency characteristics of temperature oscillations caused by thermal spots of a surface film was experimentally determined in a Langmuir tank. An analysis of the power spectra the temperature oscillations were multimodal. In addition, no consistant differences between the spectrum for a pure surface and the spectrum for a surface covered by-an acid monolayer were found. A roughened gain-frequency factor was found that is equal to the ratio of the average period between the thermal spots to the dispersion of the time series of temperature oscillations. The factor significantly differed over a wide range of temperatures for a pure surface and for a surface covered with the monolayer. The experimental results do not confirm the existence of a leading frequency in the temperature oscillations of a cold surface film due to an appearance of thermal spots.

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

Доп.точки доступа:
Gladyshev, M.I.; Levin, L.A.; Sushchik, N.N.

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19.

Photoinduced chlorophyll fluorescence oscillations of high plants leaves [Текст] / T. V. Nesterenko, K. G. Dunaev // Biofizika. - 1998. - Vol. 43, Is. 2. - P. 366-368. - Cited References: 14 . - ISSN 0006-3029

РУБ Biophysics

Кл.слова (ненормированные):
wheat leaves -- chlorophyll -- photoinduced fluorescence -- oscillations
Аннотация: Additional chlorophyll fluorescence oscillations were recorded during the photoinduction period of rapid and delayed fluorescence of different age wheat leaves. These oscillations accompanied basic typical course of induction curves. Oscillations had regular character. The frequency and amplitude of oscillations changed in induction period. Take note of coincidence of fluorescence oscillation frequency band with configurational oscillational frequencies of isolated chloroplasts.

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

Доп.точки доступа:
Nesterenko, T.V.; Dunaev, K.G.

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20.

Entropy approach to comparison of images [Text] / E. N. Kirsanova, M. G. Sadovsky // Open Syst. Inf. Dyn. - 2001. - Vol. 8, Is. 2. - P. 183-199, DOI 10.1023/A:1011962818766. - Cited References: 10 . - ISSN 1230-1612

РУБ Thermodynamics + Computer Science, Information Systems + Mathematics, Applied + Mechanics + Physics, Mathematical + Statistics & Probability

Аннотация: Basically new pattern recognition method is implemented to compare two (or several) digital images. The method has neither feature alphabet, nor pattern dictionary recovery stages. It compares input images due to a special object called palette built from fragments of images. The measures to estimate the distances between images are based on a determination of the specific entropy of the frequency dictionary of all image with respect to the palettes that latter presents the statistical ancestor of the group of the images under comparison. The palette is defined as the frequency dictionary with frequencies of the fragments equal to arithmetic mean of the frequencies of the same fragments from the images to be compared. Such definition yields a minimum of the sum of specific entropies of the compared images with respect to the palette. Some preliminary results in the application of the method in pattern recognition and synergistics problems are presented. The limitations and basic properties of the method are discussed.

WOS
Держатели документа:
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, Ctr Comp, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk 660036, Russia
ИБФ СО РАН
ИВМ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kirsanova, E.N.; Sadovsky, M.G.

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