The Bulletin of the Adyghe State University,<br />
the series “Natural-Mathematical and Technical Sciences” The Bulletin of the Adyghe State University,
the series “Natural-Mathematical and Technical Sciences”
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#1 / 2017

Biological Sciences

  • Sirotyuk E.A., Gunina G.N.
    Ontogenesis of Convallaria transcaucasica Utkin ex Grossh. in the oak forests of the Adyghea Republic

    A study is made of ontogenesis and the vital form of Convallaria transcaucasica in the oak forests of the Adyghea Republic. Three periods and four ontogenetic conditions of a plant are allocated. The ratio of width of a sheet plate to its length is the important criterion characterizing age conditions of the Transcaucasian lily-of-the-valley. This ratio at youthful and senile plants is minimum, at generative – maximum, and at the virginilå ones – an average between senile and generative partial shoots.

    pdf 34-40.pdf  (461 Kb)

  • Shumilov D.S., Tuguz A.R., Smolkov I.V., Tatarkova E.A., Muzhenya D.V., Ashkanova T.M., Kushu L.T.
    Gene polymorphisms of the main pro- and anti-inflammatory cytokines: IL-1&#61538; (T511C, RS16944), TNF-&#945; (G308A, RS1800629), IL-4 (C589T, RS2243250) in coronary atherosclerosis

    This study focuses on the role of SNP of cytokine genes IL-1 (T511C, rs16944), TNF-α (G308A, rs1800629) and IL-4 (C589T, rs2243250) in coronary atherosclerosis outcoming in an ischemic disease. Cardiologically sick people (n=26) in comparison with donors (n=31) show statistically significantly increased frequencies of 511C allele and heterozygotic C511T of a gene genotype of a pro-inflammatory cytokin IL-1β (respectively, P=0,0004; OR=4,67 and R=0,0007; OR=7,09); “mutant” 589T allele (Đ=0,04; OR=2,45) and C589T genotype (Đ=0,04; OR=4,09) of anti-inflammatory IL-4. Despite the high importance of SNP of TNF-α gene in pathogenesis of cardiovascular diseases for some regions of the world, relationship between G308A allele of TNF-α gene and coronary atherosclerosis (Đ>0,05) at inhabitants of the Adyghea Republic is not confirmed.

    pdf 41-46.pdf  (318 Kb)

  • Ocheret N.P., Tuguz F.V.
    Physical and chemical researches and environmental monitoring of coastal soils of the Krasnodar reservoir

    This paper discusses modern environmental issues of the Krasnodar artificial reservoir; negative impact of the reservoir on a soil cover of the Adyghea Republic; results of physical and chemical researches of soils in a coastal zone of the reservoir: availability of ions of the main salt structure and heavy metals, as well as acidity. The high percent of the general morbidity of the population in this region is noted.

    pdf 47-52.pdf  (404 Kb)

  • Tkhakushinov R.A., Lysenkov S.P., Dautov Yu.Yu., Urakova T.Yu.
    Correlation between the level of leptin and separate morpho-physiological parameters of patients with an excess weight

    A study was made of correlation between the level of leptin and some physiological and biochemical indicators at patients with the excess body weight and obesity in the dynamics of performing offloading and dietary therapy (19–21 days). Direct reliable relationship is established between leptin and the level of insulin, arterial systolic and diastolic pressure, the general fatty weight and waist circumference. After a course of offloading and dietary therapy correlation remains between the level of leptin, systolic arterial pressure and lump of fatty tissue. Previously, before performing offloading and dietary therapy, the revealed correlations between leptin and insulin levels, as well as between leptin and waist levels after a course of offloading and dietary therapy were not defined.

    pdf 53-57.pdf  (317 Kb)

  • Pchikhachev E.K., Korzun B.V.
    Introduction of a pawpaw three-blade (Asimina triloba (L.) Dunal.) in a foothill zone of Adyghea

    This paper studies a possibility of an introduction of a pawpaw three-blade (Asimina triloba (L.) Dunal.) in a foothill zone of the Adyghea Republic. Researches are conducted on the basis of the Adyghe Branch of Russian Research Institute of Floriculture and Subtropical Cultures. The collection of a pawpaw three-blade is presented by cultivars Sochi 11, Sochi 12, Valentina and the F-6 and F-8 forms transferred by the Department of Subtropical and Southern Fruits of the Russian Research Institute of Floriculture and Subtropical Cultures. Climatic and weather conditions of the region of an introduction are characterized to draw a conclusion on their compliance to biological requirements of culture. Features of passing of phenological phases and indicators of a gain of promising selection forms are analyzed. Morphobiometric features of plants are considered.

    pdf 58-63.pdf  (545 Kb)

  • Sirotyuk E.A., Ayba E.A., Gergiya I.G.
    Genus Gentiana L. in Ritsinsky relic national park (Republic of Abkhazia)

    The paper shows the results of inspection of the Ritsinsky relic national park: subtropical foothill, mountain forest and mountain meadow zones. The Gentiana genus is represented in the park by seven species, the majority of which are the Caucasian endemics with different sizes of habitat. Populations of all species revealed in the park are small with weak reproduction.

    pdf 64-71.pdf  (465 Kb)

  • Smolkov I.V., Tuguz A.R., Shumilov D.S., Kushu L.T., Muzhenya D.V., Ashkanova T.M., Tatarkova E.A., Kulova I.G.
    Role of gene polymorphisms of a folate cycle in development of peripheral atherosclerosis in ethnic groups of the Adyghea Republic

    Frequency distribution of C677T, A1298C, A66G, A2756G of MTHFR, MTRR, MTR gene polymorphisms in samples of genomic DNA of donors and patients with clinical complications from peripheral atherosclerosis is investigated by SNP method (single nucleotide polymorphism) at inhabitants of the Adyghea Republic. MTR A2756G SNP is associated with risk of development of an ischemic stroke (Đ<0.05). The ethnogenetic analysis of distribution of A2756/2756G alleles in the examined groups of patients and donors shows statistically significant increase in frequencies of G2756 allele (Đ=0,05) at Russians with an ischemic stroke.

    pdf 72-80.pdf  (324 Kb)

  • Gudkova G.N., Kuzenko M.V.
    Morphological features of a culm of the lodging-resistant wintering oats

    The paper sheds light on results of studying the length and diameter of culm internodes of the wintering oats. Various degrees of plant lodging resistance are largely connected with morphological features of the top internodes of a stalk and inflorescence.

    pdf 81-86.pdf  (358 Kb)

  • Didenko S.N.
    Change in indicators of some hormones of hypothalamo-hypophysial adrenal axis, defined in saliva under the influence of standard physical activity at young athletes

    The data available in modern scientific literature on the content of the hormones defined in saliva of young athletes depending on the nature of physical activities and training level are fragmentary and have no sufficient justification. The purpose of this work is to investigate the level of hormones in saliva in an initial state and after standard physical activity (the PWC170 test in L.I. Abrosimova's modification, 1978) at young handballers (12–13 year-old boys) and their agemates who are not playing sports. The conducted researches revealed reliable distinctions in indicators of a number of hormones at young athletes of the first (a stage of sports specialization) and the second group (the initial stage of training), as well as at the agemates who are not playing sports in an initial state and after standard physical activity.

    pdf 87-90.pdf  (293 Kb)

  • Badov A.D., Dzhioeva V.D.
    Natural conditions and resources as an important factor of sustainable socio-economic development of South Ossetia

    The paper explores the natural conditions and resources from the point of view of economic revival of South Ossetia. It considers some aspects of rational use of resources.

    pdf 91-94.pdf  (302 Kb)

    Mathematics

  • Roytenberg V.Sh.
    On the generation of limit cycles of a polynomial system from the infinity

    The paper examines the polynomial system of differential equations on the plane, depending on a parameter and having the infinitely far stable one-sided double limit cycle for zero value of the parameter. The stable limit cycle appears on the plane under variations of the parameter. We have found the asymptotics of this cycle.

    pdf 13-18.pdf  (332 Kb)

  • Rustanov A.R., Salakhov A.Z., Khairov R.A.
    An axiom of Ô-holomorphic (2r+1)-planes for almost contact metric manifolds of class NC10

    The main purpose of this paper is to study the properties of isotropy of almost contact metric manifold of class NC10 in particular the study of the axiom of the Ô-holomorphic planes for almost contact metric manifolds of class NC10 . Using the method of the associated G-structures the following results were obtained: 1) NC10-manifold satisfying the axiom of Ô-holomorphic(2r+1)-planes is cosymplectic manifold; 2)NC10-manifold satisfies the axiom of Ô-holomorphic(2r+1)-planes if and only if it is a manifold of constant holomorphic sectional curvature; 3)NC10-manifold satisfying the axiom of Ô-holomorphic (2r+1)-planes, is locally equivalent to the product of the real line on one of the following manifolds endowed with the canonical Kähler structure: 1) complex Euclidean spaceC^n; 2) complex projective spaceCP^n; 3) the complex projective space CD^n.

    pdf 19-24.pdf  (384 Kb)

    Physics

  • Beglaryan M.E.
    Magnet current tubes in the axion Sun luminosity

    The paper observes the media with quasi-zero refraction, in other words the media, where the absorption factor can be ignored. It means that for exercising the oscillations without significant losses of the process intensity there is a medium needed with low or “quasi-zero” density, which depresses the influence of photon absorption processes naturally and almost completely. It turns out that such “transparent” media can exist, and not simply in plasma medium, but proximately in convective zone of the Sun. Here so called magnet current tubes are meant, whose properties are described in this paper. The magnet field variations at to the bottom of convective zone in tachocline will cause in this case intensity variations of converted -quantas, which in their turn will cause variations of the Sun luminosity, known as modes of the active and calm Sun. The paper also deals with the simplified variant of origin and time and space evolution of magnetic current tubes.

    pdf 25-33.pdf  (1 Mb)

    Technical Sciences

  • Kashin Ya.M., Kashin A.Ya., Knyazev A.S., Kopelevich L.E., Samorodov A.V.
    Methodology for the calculation of synchronous electric machines with excitation from permanent magnets for wind-solar energy sources

    The methodology for the calculation developed by the authors allows carrying out the calculation of parametres of synchronous electric machines with excitation from permanent magnets of radial, conic and axial designs.

    pdf 95-106.pdf  (928 Kb)

  • Kasparyan M.S., Aliev M.V., Ginnyatulin M.N.
    Block encoding hyperspectral imaging with adaptive selection of encoding transformation

    The paper describes the approach of block encoding for hyperspectral images with adaptive selection of encoding transformation. The generalized discrete sine-cosine transforms are selected as the encoding transformation.

    pdf 107-111.pdf  (1 Mb)

  • Kashin Ya.M., Knyazev A.S., Kashin A.Ya., Bats V.A.
    Current state of emergency aviation turbines and their classification

    The paper deals with the use of emergency aviation turbines in aircrafts of the different countries. Designs and purpose of the existing turbines are analyzed, and their classification is given.

    pdf 112-122.pdf  (2 Mb)

  • Kizdermishov A.A., Kizdermishova S.Kh.
    Improvement of system of the accredited certification centers as a uniform information-technical and organizational-legal problem

    The paper discusses the improvement of activity of the accredited certification centers. The authors provide a short review of fundamental changes in activity of the certifying centers during 2002–2016, as well as prospects of development of the market of certification centers and adjacent kinds of activity: development of the applied software for systems of electronic document flow, training and retraining of personnel of certification centers according to the current legislation of the Russian Federation, development of means of cryptographic protection of information, etc.

    pdf 123-128.pdf  (364 Kb)

  • Kashin Ya.M., Kashin A.Ya., Knyazev A.S., Kopelevich L.E., Samorodov A.V.
    Optimization of weight and dimensions of the equivalent synchronous electrical machines

    The paper deals with the choice of weight and dimensions of the electric machine taking into account its shape at a design stage. The authors present the results of researches on dependence of weight of active materials and dimensions of synchronous electric machines of the same power on their shape for a radial, axial and conic design.

    pdf 129-143.pdf  (871 Kb)

  • Gorbatkova T.F., Vasilchenko N.P.
    Questions of construction with regard to seismology of Krasnodar Region and Adyghea Republic

    New data on seismicity in the Republic of Adyghea and Krasnodar Region demand actions related to construction of aseismic buildings. The accounting of seismic impacts, and knowledge of requirements to aseismic construction are needed to minimize damages of buildings and property loss in case of an earthquake.

    pdf 144-148.pdf  (294 Kb)