No 3 (2018)

Articles
TAXONOMIC COMPOSITION OF CYANOBACTERIAL AND ALGAE CENOSIS OF THE USOLKA RIVER THERAPEUTIC MUDS AT THE «KRASNOUSOLSKY» RESORT
Dubovik I.E., Sharipova M.Y.
Abstract
During the study period from 2015 to 2016 229 species and intraspecific taxa of algae and cyanobacteria were found in the benthic algal flora of the Usolka River (the basin of the Belaya River, the Gafuriy District of the Republic of Bashkortostan). In the samples from different mineral springs most often encounted were Synechocystis aquatilis, Oscillatoria limnetica, O. formosa, Phormidium molle, Ph. foveolarum, Spirulina jenneri, Anabaena variabilis, Aphanizomenon flos-aquae, Euglena viridis, Cyclotella comta, Diatoma vulgare, Synedra acus, S. ulna, Cymbella pusilla, Achnanthes minutissima, Gyrosigma spenceri, G. acuminatum, Gomphonema olivaceum, Navicula viridula, Nitzschia acicularis , N. recta, N. paleo, Botrydiopsis arhiza, Chlorella vulgaris, Pandorina morum, Scenedesmus acuminatus , Pediastrum boryanum . According to the medium reaction (pH), alkaliphiles predominate, including 54 intraspecies taxa, which is 23.5% of the detected algae. Geographically, the flora of the therapeutic mud from the river Usolka is defined by cosmopolitans, which include 135 species and intraspecies taxa of algae and cyanobacteria, which constitutes 59%. In the relation to the main habitat, plankton-benthic species prevail. In terms of halobility, most diverse were freshwater species dominated by oligogalobs-indifferents. According to the algae and cyanobacteria distribution in saprobity zones, oligosaprobes, betamesosaprobes and oligobetamisosaprobes were predominat in the therapeutic muds of the river Usolka . The ratio of algal species and cyanobacteria of different divisions remained constant throughout the summer-autumn seasons, so was the ratio of saprobity species indicators with the dominance of oligosaprobes.
Bulletin of Nizhnevartovsk State University. 2018;(3):4-10
views
UTRICULARIA VULGARIS L. ( Lentibulariaceae ) ECOBIOMORPHE IN THE WEST SIBERIAN PLAIN
Sviridenko B.F.
Abstract
The results of an ecobiomorphological study of the hydrophilic Holarctic species Utricularia vulgaris L. (Lentibulariaceae), conducted in the steppe, forest-steppe, forest and forest-tundra natural climatic zones of the West Siberian Plain are discussed in this article. In the course of the work, a synthetic approach to the study of life forms was used, which presupposes taking into consideration biomorphological and ecological parameters of the species. The ecobiomorphological principle of studying life forms links into a single system such concepts as «life form», «ecobiomorphe», and «ecological niche». Important parameters of biology, morphology, and ecology of the species are taken into account/ considered: i.e. duration of life cycle, structure and functions of shoots, type of hibernacula and their conditions in an unfavorable season, and the ecological valence relative to the major factors of the environments (aquatic, soil). The list of ecobiomorphological characteristics suggests that U. vulgaris can be characterized as plurannual, polycarpic, free-floating (rootless), turion, long-shooted, photoautotrophic and inorganic leaf-feeding with optional non-chlorophyllic rudimentary stolons. It is a low, surface-blossoming, weakly saltish or fresh-water, indifferent to water active reaction and hardness, detritus-pelophilic, Fe-tolerant hydatophyte.
Bulletin of Nizhnevartovsk State University. 2018;(3):10-18
views
DISTRIBUTION, ECOLOGY, AND COENOTIC CONNECTIONS OF ISOЁTES SETACEA IN THE KHANTY-MANSIYSK AUTONOMOUS OKRUG - UGRA
Sviridenko B.F., Sviridenko T.V., Murashko Y.A.
Abstract
Two new locations of Isoёtes setacea Durieu (Isoёtaceae, Lycopodiophyta) are described, along with the results of a hydrochemical study of the aquatic environment in the ecotopes of this species, and a coenotic features of plant aggregations in which it is involved on the territory of the Numto Natural Park in the Khanty-Mansiysk Autonomous Okrug. Based on the hydrochemical analysis, the hydrogen ion concentration (рН) of water in the I. setacea ecotopes is 5.6 to 6.2, water color is 13 to 34 degrees of the chrome-cobalt scale, overall mineralization of water is 0.01 g/dm3, overall hardness is 0.04 to 0.09 meq/dm3. The content of oil products (petroleum hydrocarbons) is within 0.03 mg/md3. The concentrations of soluble forms of heavy metals are within the following ranges: Fe: 7.9 to 1,299.4 µg/dm3, Pb: 0.07 to 0.24 µg/dm3, Ni: 0.00 to 0.09 µg/dm3, Zn: 16.08 to 32.10 µg/dm3, Cd: 0.03 µg/dm3, Cr: 0.22 to 1.59 µg/dm3, Cu: 0.13 to 1.77 µg/dm3, Mn: 5.56 to 40.01 µg/dm3. It has been confirmed that I. setacea is linked to clear, acidic, sweet, very soft waters with low concentrations of oil products and dissolved forms of heavy metals (except for Fe). Ecological tolerance of I. setacea to elevated levels of dissolved forms of Fe reflects its adaptation to hydrochemical environment of the water bodies of the northern West Siberian Plain where surface waters with high Fe levels are common. The populations of Isoёtes setacea have been found to be linked with plant aggregations belonging to three associations: 1. Batrachospermum vagum + Isoёtes setacea; 2. Carex rhynchophysa + Carex lasiocarpa ; 3. Sparganium minimum. The discovered populations of I. setacea are recommended for bioecological monitoring as a model subject.
Bulletin of Nizhnevartovsk State University. 2018;(3):18-26
views
LANDSCAPE-GEOBOTANICAL CHARACTERISTIC OF THE NATURAL MONUMENT «SYSTEM OF UN-NOVYINKLOR AND AI-NOVYINKLOR LAKES»
Verevkina E.L., Lapshina E.D.
Abstract
Specially protected natural areas are critical to the conservation of biological and landscape diversity as a basis for sustainable development. The natural monument of regional significance «System of Un-Novyinklor and Ai-Novyinklor lakes» is a unique protected natural area and centre for environmental education of the inhabitants of the Beloyarskiy district, Khanty-Mansi Autonomous Okrug - Yugra. One of the main tasks of the natural monument is to preserve natural complexes, plant communities, rare and red-listed plant species. The uniqueness of these lakes is primarily manifested in their clean and clear water, that is why for many years Un-Novyinklor lake has served as a reliable source of drinking water for the residents of Beloyarskiy. Currently, the vegetation cover in the area of wet pine forests is in active restructuring. Coastal sedge communities are formed in the place of those forests on the flat regularly flooded areas. The physiognomie of vegetation cover and species composition of plant communities serve as an indicator of the whole complex of ecological conditions for natural ecosystems habitats. The study of the current state of the natural monument is of great scientific importance. Based on the results from both field and laboratory research in 2011 and 2016, an inventory of flora was conducted and geobotanical characteristics of the main types of plant communities of forest, marsh and coastal water vegetation of the natural monument and its protected zone were given.
Bulletin of Nizhnevartovsk State University. 2018;(3):26-35
views
PETROPHYTIC STEPPES OF THE NORTHERN KRAKA MASSIF (THE SOUTHERN URALS)
Yusupova O.V., Yamalov S.M., Lebedeva M.V.
Abstract
Mountain steppes of the southern Urals are an extrazonal type of relict plant communities of relict origin with a unique floristic composition. This study is the first to describe the communities of the Northern Kraka petrophytous steppes. In the system of ecological and floristic classification these communities are referred to the Koelerio sclerophyllae-Festucetum valesiacae association. They occupy upper slopes and are adjoint to the forest communities of pine and larch. The communities grow on the steep slopes of South exposures with the inclination of up to 400, where lichens of the genus Cladonia are not rare. Various species of petrophytous steppes form the core of coenflora, e.g. xero-mesophytes of Zavolzhsko-Kazakhstan type xerophyte steppes. In the communities of North Kraka are less represented species of herbaceous layer in light-coniferous forests Brachypodio pinnati-Betuletea pendulae . The absence of such species as Elytrigia repens, Fallopia convolvulus may indicate a lesser degree of anthropogenic impact on the communities of Northern Kraka, due to its inaccessibility. Comparison with similar petrophytous steppe communities of Southern Kraka revealed high degree of their similarity. On the basis of ordination analysis it was found that the communities of North Kraka form a separate cluster associated with lower species diversity. The coenflora of the studied steppes contains a large group of rare species which need/require protection and sustainable use.
Bulletin of Nizhnevartovsk State University. 2018;(3):35-41
views
DENDROMETRIC FEATURES AND STATE OF YOUNG PLANTS OF ARBUTUS ANDRACHNE L. IN CAPE MARTIYAN RESERVE
Koba V.P., Papelbu V.V., Sakhno T.M.
Abstract
Research on living conditions and dendrometric features of A. andrachne on Cape Martiyan has been conducted. It has been shown that 10-year-old species prevail in the age range of A. andrachne young plants. The proportion of older age groups in the ecotopes of the reserve is reducing more evenly in comparison with its buffer zone. The increase of precipitation during winter-spring period enhances the possibilities of seed renewing. Under improved growth conditions the development of certain groups of seed renewing can be observed, the allocation of these groups is connected with the ecotopes similar in their edaphic, orographic and microclimatic indexes. In natural populations of A. andrachne the elimination of individuals with low viability happens in the early stages of ontogenesis. The limitation of possibilities for successful development of A. andrachne young plants is to a larger extent determined by the negative environmental factors connected with poorly organized recreational activities.
Bulletin of Nizhnevartovsk State University. 2018;(3):42-46
views
YIELD AND ONTOGENETIC STRUCTURE OF MEADOW ECOSYSTEMS IN THE FLOODPLAIN OF THE SOZH RIVER IN CHECHERSK DISTRICT, GOMEL REGION
Dayneko N.М., Timofeev S.F., Zhadko S.V.
Abstract
The article presents data on the yield and ontogenetic structure of dominant species of meadow ecosystems in the floodplain of the Sozh river in Chechersk district, Gomel region. Five meadow ecosystems have been studied. The aim of the study was to reveal the yield and ontogenetic structure of the dominant species of the meadow ecosystems in the floodplain of the Sozh river. Geobotanical, ecological, floristic, radiological and agrochemical methods have been used in the research. It was established that soils of three meadow ecosystems (e.i. Poetum angustifoliae, Agrostio vinealis - Calamagrostietum epigeios, Caricetum gracilis) are similar to neutral, while the soils of Deschampsietum cespitosae and Poo - Festucetum pratensis associations are slightly acidic. The soils have low amount of mobile potassium, while the content of mobile phosphorus is medium. The studied soils are characterized by a low content of organic matter. The highest yield was recorded in the Caricetum gracilis association (3.58 t/ha of dry weight), and the lowest was in the Poetum angustifoliae association (1.87 t/ha of dry weight). Two associations, i.e. Deschampsietum cespitosae and Poo-Festucetum pratensis, had almost equal yield (3.06 and 3.13 t/ha of dry weight, respectively). The yield of meadow ecosystems is related to their location in the floodplain and depends on the floristic composition, as well as on the dominant species, which contribute significantly to the formation of the aboveground phytomass yield. Since the specific activity of cesium-137 does not reach 1300 Bq/kg and the content of radiostrontium-90 in the aboveground phytomass did not exceed the accepted level of 260 Bq/kg, then herbal fodder can be used with no limits. The highest density of individuals per m2 was recorded in the Poa angustifolia (60.7 individuals per m2) and Poa pratensis (60.9 individuals per m2) coenopopulations and was almost similar. The lowest density was recorded in the Carex acuta (23.7 individuals per m2) and Deschampsia cespitosa (37.9 individuals per 1 m2) cenopopulations. Middle-aged generative plants prevail in the ontogenetic structure of studied dominant species cenopopulations (37.1-51.1%). Immature, virgin and young generative plants with a small number of old generative ones make it possible for the populations to hold a sustainable position in the associations and maintain a stable yield of grass stand.
Bulletin of Nizhnevartovsk State University. 2018;(3):46-52
views
EXPEDITION SURVEY OF THE TURKISH PART OF THE NATURAL DISJUNCTIVE AREA OF THE PHOENIX THEOPHRASTI GREUTER ON THE DATÇA PENINSULA
Maksimov A.P., Gaevsky I.A., Kovalev M.S., Khromov A.F., Grigoryev A.I.
Abstract
The results of the expedition survey of the southern coast of the Datça peninsula (south-western part of Turkey from Marmaris to Datça) with the purpose of studying a part of the natural disjunctive area of the Phoenix theophrasti Greuter, have been presented. This species is endemic, it is distributed on the island of Crete, several small adjoining islands and on the south-west coast of Turkey. The species is listed in the IUCN Red Data Book. During the survey, samples of leaves were collected, natural conditions were described and numerous photos of the Phoenix theophrasti were made. The climatic characteristics of the Turkish part of the natural disjunctive area of Phoenix theophrasti and the regions of introduction are represented by climatic diagrams constructed according to the method of H. Walter and H. Lieth with additions. The seedlings were grown from the received seeds of the palm center (Palmiye Merkez-Park 48800 Toparlar / Köyceğiz / MuğlaTürkei), which will be subsequently tested on the Southern coast of the Crimea (SCC) and Caucasian Riviera (CR). This species is considered the most frost-resistant date in the world, and the results of further introduction testing will demonstrate its viability under new introduction conditions. It is established that the Phoenix theophrasti prefers to grow in coastal areas or on steep calcareous rocks, along moist valleys, streams and rocky ravines on the products of their weathering. Its appearance in plant communities invariably points to a water source. It has sustainability to salt. The Phoenix theophrasti unlike other species of this genus, grows in the conditions of its native land in the most northern and cold climatic zone. It is used as an ornamental plant in green construction throughout the Mediterranean, but not as widely as the Phoenix dactylifera L. and Phoenix canariensis Chab. Further study of biological and environmental peculiarities under natural conditions and introduction conditions on the SCC and CR will allow to evaluate its adaptive capabilities and to determine viability for amenity planting in the new adaptation areas.
Bulletin of Nizhnevartovsk State University. 2018;(3):53-64
views
PINE GROWTH AS CONDITIONED BY DISTANCES TO NEIGHBORING TREES
Rogozin M.V.
Abstract
A study of Рinus sylvestris L. with unchanged structure aged 180 years has been conducted in the Perm Urban Forestry. The results were as follows: average height of trees is 32 m, average diameter is 39.8 cm, basal area is 42 m2/ha, stand density is 0.94, growing stock is 560 m3/ha. After total mapping of trees in the area of 1.1 hectares, the ArcGIS program was used to determine the distances of each pine to its neighbouring trees. Then on the electronic map, 280 distances were determined from the living and 180 distances from the fallen trees to their close neighbours. For 120-year-old trees these distances had limits of 23-745 cm (on average 277 cm), while for 180-year-old ones the limits were between 84-745 cm (on average 315 cm). It appears that the distance to the close neighbour has little effect on the diameter of the neighboring trees at r = 0.148 ± 0.063. Furthermore, the influence of this distance on their average diameter is only 4%. The distance of 170-440 cm to the close neighbour was determined as most favourable. This distance is recommended for forest care and pine growing.
Bulletin of Nizhnevartovsk State University. 2018;(3):64-69
views
HYDROBIOLOGICAL CHARACTERISTICS OF LANDSCAPE AND BOTANICAL NATURAL MONUMENT «TUZLUKKOL» (ORENBURG OBLAST)
Shayhutdinova A.A., Nemtseva N.V.
Abstract
The article presents the hydrographic and hydrological characteristics of the river Tuzlukkol, located in the landscape and botanical natural monument "Tuzlukkol". The river is characterised by the gradient of salinity and dynamics of hydrological and hydrochemical behaviour. For the first time data were obtained on the taxonomic composition of macrozoobenthos fauna on the territory of the landscape and botanical natural monument "Tuzlukkol". The fauna of macrozoobenthos in the study area is represented by 22 species of invertebrates. Larvae of amphibiotic insects are the most diverse, e.g. Diptera (15 species), mayflies (2 species), beetles (1 species), bedbugs (2 species), crustaceans (2 species). The order Diptera is characterized by the predominance of family Chironomidae species, which is typical for saline and brackish habitats. Crustacean larvae belong to Amphipoda and Branchiopoda families. Gammarus lacustris Sars are common on rocks while larvae of Artemia salina live in muddy soil. Larvae of mayflies are represented by Caenidae and Baetidae families. Larvae of bedbugs belong to Corixidae family. Beetles belong to Hydraenidae family. Specific conditions are preserved in the saline reservoirs of arid zones for euryhaline bottom communities to develop.
Bulletin of Nizhnevartovsk State University. 2018;(3):70-75
views
ANALYSIS OF MACROZOOBENTHOS ORGANISMS RESPONSE TO THE CONTENTS AND INDICATION OF CHEMICALS IN THE WATER OF BASHKIR CIS-URAL SMALL RIVERS
Chaus B.Y.
Abstract
The article analyses the larvae of macrozoobenthos insects response to the quality of the water of Bashkir Cis-Ural small rivers. Such analysis is necessary to identify and predict the level of chemicals and their compounds. The analysis of occurrence (in unit shares) of larvae from such orders as Plecoptera, Ephemeroptera, and Trichoptera was performed in the regions of 6 state gauging station on the rivers Ashkadar, Seleuk, Inzer, Zilair and Big Ik in the period of time between 2005 and 2016. For the chemical aspect of this research the following data from the abovementioned rivers were used: content of compounds such as manganese, nickel and iron, oil products, phenols, ammonium nitrogen, copper, zinc, sulfates, chlorides and nitrite nitrogen. The specific combinatory water pollution index was used as a complex indicator. Chemical quality gradations of the water of small rivers in the studied region were defined with the analysis of variance. It was revealed that the occurrence of larvae of some species from Plecoptera, Ephemeroptera, Trichoptera orders correlate with the chemicals determined in waters of the studied rivers by regulatory bodies. A progression was constructed on the decrease of the macrozoobenthos organisms response for indication and regression models to predict pollutant concentration in the water of Bashkir Cis-Ural small rivers.
Bulletin of Nizhnevartovsk State University. 2018;(3):75-83
views
ON THE COLEOPTERA FAUNA OF THE PLANNED NATIONAL PARK "GORNAYA KOLYVAN"
Psarev A.M.
Abstract
The aim of the research was to study landscape biodiversity of Altai Krai in order to monitor their state. The article provides the results of studying Coleoptera necrophilous complex in the pine wood "Kolyvansky borok" which is located in the area of the planned national park "Mountain Kolyvan", which is a standard of native vegetation of Altai-Sayansk mountain region. Samples were collected by means of soil traps with decaying fish as bait. 46 species from 10 Coleoptera families have been revealed. Staphylinidae (66.14%) dominated in species diversity and number, as for Leiodidae, Scarabaeidae and Silphidae, they were much less abundant (10.63%, 7.48% and 6.70% respectively). The percentage of other species families was about 9.50%. Rare species (score of abundance 1) predominated in the collections (71.74%). Only one dominant species, e.i. Aleochara curtula (score of abundance 4), was numerous (16.93% of the total number of species). It can be explained by closely located small settlements with abundance of substrates for the development of flies that Aleochara are associated with. Shannon index for the studied sites is 3.27, Berger Parker index amounted to 0.17 and Pielou index was 0.59 that shows high species diversity and poorly expressed domination at comparatively equal abundance of main species. In general, in the necrophilous Coleoptera fauna there are litter and substrate species which are characteristic for the region forest landscapes; there are also species common for anthropogenic landscapes (e.i. Creophylus maxilosus, Ontholestes murinus, Philonthus cruentatus, Ph. marginathus ). It was noted that the abundance of some species is subjected to recreation pressure.
Bulletin of Nizhnevartovsk State University. 2018;(3):83-88
views
BIODIVERSITY OF FOREST ORNITHOFAUNA IN RUSSIAN PRIISHIMJE
Boldyrev S.L.
Abstract
Based on field research conducted in 2015 and 2016, the structure and diversity of bird communities in forest habitats of the Russian Priishimje has been analysed. When considering the average number of species in the ecotone habitats and population density of birds, it was found that sub-taiga subzones have the lowest values among all the investigated natural areas. Considering the distribution of Shannon and Simpson diversity indexes in habitats, it was established that the indexes decreased significantly in habitats of the forest-steppe zone (birch forests) in 2016 as compared to 2015 and there was an increase of these indexes in the habitats of sub-taiga subzones. It is suggested that loss of species diversity was due to the reduction of low-numbered species and because of common species conservation in 2015. The situation is different in sub-taiga, i.e. while common species have been preserved; the variety of low-numbered species has increased. When comparing the diversity index by months, a link was established between the indicators of average monthly temperatures and the abundance of birds. That leads to the reduction of surface area, the impoverishment of the species composition of forest vegetation and distribution of open and semi-open habitats which are more typical for southern areas.
Bulletin of Nizhnevartovsk State University. 2018;(3):88-99
views
EVALUATION OF FREE RADICALS LEVEL IN THE LIVER AND KIDNEYS OF LABORATORY MICE WHEN EXPOSED TO SHORT-TERM SUPERCOOLING
Belkin A.V., Dubrovsky V.N., Maslakova K.Y., Turbasova N.V.
Abstract
This work has studied the effect of short-term supercooling on the organisms of laboratory mice. The effect of low temperatures leads to the activation of oxidative processes, which are characterized by a change in the level of free-radical metabolites of oxygen in the body. Thereby, we performed a bio-chemical luminescence analysis of homogenates of the tested tissues of laboratory animals subjected to short-term supercooling. It was done in order to estimate the level of free radicals, since the intensity of bio-chemical luminescence allows determining the rate of the reaction during which these radicals are formed. The intensity of chemical luminescence is directly proportional to the rate of radical formation, thus it becomes possible to evaluate the level of free radicals that are being formed in this system. The results of our study indicate that the level of oxygen free radicals in liver and kidneys increases when laboratory mice are exposed to short-term cold stress. All cells and tissues of animals emit light in the course of their vital activity, in other words, they have so-called intrinsic chemical luminescence. However, this light is so weak that it was not possible to detect it for a long time. Therefore it was called the "superweak luminescence". This intrinsic luminescence is mainly due to the reactions involving free radicals, and measuring such luminescence is used in scientific studies aimed at laboratory analysis in the cases when it is important to detect and study the appearance of these radicals in living systems. Such low intensity of luminescence is the main obstacle for such research projects and extensive use of intrinsic chemical luminescence for analytical purposes. In this regard, the measurement of chemical luminescences in the presence of certain compounds, the so-called activators, became considerably widespread. According to the mechanism of action they are divided into two groups: chemical and physical. The action of physical activators is based on such physical process as energy transfer from the molecule of the product of chemical luminescence reaction to the activator.
Bulletin of Nizhnevartovsk State University. 2018;(3):99-103
views
INFLUENCE OF SELENIUM ON THE CONTENT OF MICROELEMENTS IN THE LIVER OF WISTAR RATS
Sindireva A.V., Maydanyuk G.A., Golubkina N.A.
Abstract
The aim of this research is to evaluate the influence of selenium on the balance of microelements (i.e. Fe, Zn, Cu, Cr, Co, I, Mo) in the liver of Wistar rats. The subjects of research were as follows: liver of Wistar rats, microelements (Fe, Zn, Cu, Cr, Co, I, Mo). The experimental animals received a standard laboratory diet, for four months selenium solution in the form of Na2SiO3 was daily included into the diet of the experimental group “Selenium”. Liver was used as a material for studies. The physiological role of selenium is a subject of extensive scientific research. The main function of selenium is, first of all, its participation in antioxidant processes. Despite numerous studies confirming the need for selenium presence in the organism of animals and people, there is also a proven evidence of its toxicity when its concentration exceeds the maximum accepted levels. While the influence of selenium on plants has been studied thoroughly; the mechanism of this microelement influence on animal or human bodies requires additional study. The following data have been obtained: when the solution of Na2SiO3 is introduced into the body of animals, an increase in the content of the following microelements takes place, i.e. Co - 121.14%, I - 21.41%, Mn - 23.19%, Fe - 35.39%. The content of chrome has decreased by 55.43% as a result of selenium influence. The content of copper and zinc in the rat liver has not changed significantly under the influence of selenium.
Bulletin of Nizhnevartovsk State University. 2018;(3):103-109
views
MORPHOTYPOLOGICAL AND PSYCHOMOTOR STATE OF BEGINNING ATHLETES
Belyakova A.S.
Abstract
The article deals with the topical issues of studying morphotypological and psychomotor characteristics of beginning athletes. The problem of assessing morphofunctional development is hereditarily conditioned and is controlled by of environmental factors. However, till now the development of training programs and the choice of primary sports specialization have been based on the averaged data, without taking into account the typological characteristics of an organism. The aim of the study is to identify the most significant types of psychomotor abilities in order to justify the choice of further specialization and to enhance successful results in different types of athletics. The following methods of research were used, i.e. somatotyping; anthropometry; methods of assessing functional state; method of anthropometric indices; psychomotor testing; pedagogical testing; methods of mathematical statistics. Somatotypes of 12-13 year old beginning athletes, both girls and boys, have been assessed. The comparative analysis of morphofunctional indicators of young athletes, considering their body type, revealed that most parameters vary from one somatotype to another. Significant differences in the indices of psychomotor abilities in representatives of different somatotypes have been revealed. It has been found that there is a strong correlation between psychomotor abilities and the parameters of physical fitness as well as sport achievements. The study has determined the most significant types of psychomotor abilities for better achievements in sport, specific for each somatotype.
Bulletin of Nizhnevartovsk State University. 2018;(3):110-117
views
SEASONAL CHANGES IN THE CIRCULATORY SYSTEM ORGANS OF STUDENTS IN A NORTHEN UNIVERSITY
Pogonysheva I.A., Pogonyshev D.A., Lunyak I.I.
Abstract
The authors have conducted a survey to study seasonal changes in cardiovascular system of the students, who were born and permanently reside in Khanty-Mansi Autonomous Okrug-Yugra. The parameters were recorded in the Laboratory of Human Ecology and Physiology, Nizhnevartovsk State University. 160 students from the faculty of Ecology and Engineering (90 girls and 70 boys aged between 18 and 21) were examined. The indicators of the circulatory system were registered four times a year, i.e. in winter (February), in spring (April), in summer (June) and in autumn (October). The hemodynamics indices and adaptive capabilities of the circulatory system were determined. In the cold months, the cardiovascular system of students from this northern university was in the state of functional stress. Systolic blood pressure, pulse pressure and one-minute blood volume increased. An increase in Robinson index indicates a growing tension in the regulatory system. An increase in the resting heart rate in mid-season suggests less efficient work of heart muscle and exhaustion of the chronotropic reserve. In autumn, students had an increase in sympatic activity, which is proved by positive Kerdo index.
Bulletin of Nizhnevartovsk State University. 2018;(3):117-122
views
SPORE FORMING BACTERIA ISOLATED FROM ATMOSPHERIC AEROSOLS IN SOUTHWESTERN SIBERIA DURING ATMOSPHERIC TRANSFER OF AIR MASSES
Andreeva I.S., Safatov A.S., Puchkova L.I., Emelyanova E.K., Buryak G.A., Ternovoi V.A.
Abstract
Monitoring of near-surface and high-altitude samples of atmospheric aerosols has been performed on the territory of Novosibirsk region since 1998. This study presents the diversity and enzymatic activity of spore-forming bacteria isolated in the autumn of 2016 from high-altitude and near-ground samples obtained during monitoring of viable microorganisms in the atmospheric aerosols of Southwestern Siberia. A significant predominance of spore-forming bacteria over representatives of other microorganism groups was recorded during this period. This phenomenon might have been caused by a typical for the studied region influence of the southwestern wind, which carries dust particles from the steppes and deserts of Central Asia. These particles are usually contaminated with a large number of endospore forming bacteria. Biochemical and physiological features of the isolated spore forming bacteria were studied, their genomic identification was performed, and their enzymatic activity was determined. Based on the combination of phenotypic properties and genomic analysis of data, the obtained cultures were identified as belonging to the genera Bacillus, Paenibacillus, Brevibacillus, Lysinibacillus, Oceanobacillus and some others. The following species were identified among the representatives of the genus, i.e. Bacillus: B. beringensis, B. boroniphilus, B. cereus, B. firmus, B. korlensis, B. pumilus, B. thuringiensis, B. subtilis, B. brevis . The isolated spore-forming bacteria included strains with high amylolytic, proteolytic, lipolytic and nuclease activity They are capable of utilizing fatty acid esters, solid fats, oils and petroleum products. The most productive lipase producers were bacteria of the genus Lysinibacillus capable of fermentation at pH 5.0-9.0. Strains secreting high levels of the tested enzymes may be useful for biotechnological application.
Bulletin of Nizhnevartovsk State University. 2018;(3):123-130
views
BIOCHEMICAL DISTURBANCES IN PLANT CELLS UNDER CONDITIONS OF ANTHROPOGENIC POLLUTION
Petukhov A.S., Khritokhin N.A., Petukhova G.A.
Abstract
Currently, the problem of environmental contamination is very urgent. Accumulation of heavy metals by plants leads to biochemical disorder in cells. The concentration of lipid peroxidation products is a suitable parameter for the estimation of damage degree on cell membrane. The aim of this research was to investigate the content of diene conjugates and Schiff bases in plants of various species in the context of urban environment. The content of lipid peroxidation products was determined by the spectrophotometry of heptane extracts in the near-ultraviolet region. All the results were statistically processed; differences between studied samples were determined with Student’s t-test with the confidence probability P≤0,05. The study was carried out/done on meadow grass ( Poa pratensis ), red clover ( Trifolium rubens ), wild vetch (V icia cracca ), chamomile ( Matricaria chamomilla) , coltsfoot ( Tussilago farfara ) and cultivated oat ( Avena sativa ). Plants were collected in the area of highway, as well as in the areas with metallurgical, motor building, oil refinery and battery factories. It was discovered that the reaction of plant cell membrane to damaging was species-specific, i.e. chamomile, wild vetch and meadow grass accumulated lipid peroxidation products. The concentration of diene conjugates and Schiff bases in the cells of red clover and coltsfoot was lower than in the control group which might be due to these plants adaptation to pollution. Metallurgical factory contamination has the greatest impact on the lipid peroxidation, while the oil refinery, motor building and battery factories affect it to a lesser degree.
Bulletin of Nizhnevartovsk State University. 2018;(3):130-136
views

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies