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Orenburg State University november 23, 2024   RU/EN
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Gorichev Ju.P., Davydychev A.N., Kulagin A.Yu.
ABOUT THE PHYTOCENOTIC ROLE OF THE DARKNOUS SPECIES IN THE SOUTHERN URALS [№ 12 ' 2017]
In the Southern Urals, dark coniferous species of trees — Siberian spruce (Picea obovata Ledeb.) and Siberian fir (Abies sibirica Ledeb.) grow on medium-altitude mountains (the region of mountain taiga dark coniferous forests) and on low mountains in the western part (broad-leaved and dark coniferous forests) where they dominate in natural dark coniferous biocenoses. Regional ecological and biological characteristics of dark coniferous tree species and their phytocenotic characteristics are relatively poorly studied, stationary studies were conducted only on local sites. Very relevant is the study of the relationship of these species in biocenoses and the identification of their role in ecosystems. The research was carried out on the territory of the South Ural State Nature Reserve, which is located within two botanical and geographical areas — in the region of mountainous taiga dark coniferous forests and in the broadleaf and dark coniferous forests. Both areas were covered by in-patient and route-based research. As a result of stationary studies, indicators of phytocenotic activity of dark coniferous tree species (density of stand, timber stock, density of undergrowth), as well as their ecotopic areals have been determined. The results of the investigations make it possible to evaluate phytocenotic positions and phytocenotic activity of dark coniferous tree species in the Southern Urals. Studies have shown that in dark taiga forests dark coniferous trees actively participate in the process of forest formation, they form natural biocenoses in most ecotopes of the forest belt, as well as in a number of ecotopes above the forest belt. In broadleaf-dark coniferous forests, the participation of dark coniferous tree species in the process of forest formation is limited to only a part of ecotopic space, in a limited number of ecotopes Siberian spruce and Siberian fir dominate in natural forest communities.

Tagirova O.V., Kulagin A.YU.
SEASONAL VARIABILITY OF LEAVES BETULA PENDULA ROTH IN EXTREME FOREST VEGETATION CONDITIONS [№ 11 ' 2017]
The intraspecific and individual variability of wood plants is of interest at assessment of stability and adaptive reactions to extreme conditions of growth. Features of fluctuating asymmetry of leaves of trees of a Betula pendula Roth during the vegetative period in contrast forest vegetation conditions in 2015 are revealed. Differences between averages of two trial areas in July on 1 sign by means of an unpaired student criterion were revealed: P — 0.005, differences between values 0.015 ± 0.005, fiducial interval from 0,005 to 0,026. By means of Fischer’s criterion distinctions next months were revealed: in July (F — 2.299, P < 0.0001), August (F — 6.409, P < 0.0001), September (F — 1.552, P — 0.015). On the 2nd sign differences between averages of two trial areas by means of an unpaired student criterion in September are revealed: P — 0.016, distinctions –0.011 ± 0.005, a fiducial interval from –0.020 to –0.002. By means of Fischer’s criterion distinctions are revealed: in June (F — 1.858, P — 0.0011), July (F — 1.812, P — 0.0017), September (F — 2.904, P < 0.0001). On the 3rd sign by means of Fischer’s criterion distinctions are revealed: in July (F — 3.512, P < 0.0001), August (F — 1.742, P — 0.0031), September (F — 1.478, P — 0.0266), October (F — 1.799, P — 0.0023). On the 4th sign (Student’s criterion) of distinction in September: P — 0.032, distinctions –0.020 ± 0,009, fiducial interval from –0.038 to –0.002. By means of Fischer’s criterion distinctions are revealed: in August (F — 1.456, P — 0.0315), September (F — 3.795, P < 0.0001), October (F — 2.634, P < 0.0001). On the 5th sign by means of Fischer’s criterion distinctions are revealed: in July (F — 8.193, P < 0.0001), September (F — 1.975, P — 0.0004). The seasonal dynamism of indexes of fluctuating asymmetry of leaves of trees of a Betula pendula Roth is revealed.

Elizareva E.N., Yanbaev Y.A., Kulagin A.Y.
PLANTS FOR PHYTOREMEDIATION OF HEAVY METALS CONTAMINATED WATER [№ 3 ' 2016]
Currently the growing flow of heavy metals from wastewater into natural water bodies assumes the character of a global environmental threat. Causing serious environmental damage, heavy metals have biological activity, mutagenic and carcinogenic properties, resulting in the poisoning and death of the organism. To minimize the negative effect of heavy metals on the hydrosphere is necessary to develop new and improve existing wastewater treatment methods. The most effective, efficient and environmentally friendly wastewater treatment methods may be based on the ability of plants to accumulate toxicants. In order to select plants suitable for wastewater phytoremediation, the characteristics of the 18 plants grown in the model solutions containing heavy metals were studied. It has been shown that when added a mixture of ions (zinc, copper, cadmium, nickel and chromium), plants absorb them from the solution in smaller amounts than when added into the nutrient solution nickel or cadmium separately. At the same time the mixture of metals is more toxic to plants than individual metals. Heavy metals concentrations in the raw plant biomass were compared with the maximum permissible concentrations of metals in foods and the maximum allowable level of their content in forage. It was found that there is antagonism of metals accumulation by plants and synergism of metals toxic effect. Plant species (2 varieties of zucchini, corn and 1 varieties of cabbage) have been selected for phytoremediation of wastewater containing a mixture of heavy metals, with the possibility of further use of biomass as forage.

Kulagin A.Yu., Tagirova O.V.
MONITORING OF TREE PLANTATIONS OF SILVER BIRCH (BETULA PENDULA ROTH) IN TERMS OF THE UFA INDUSTRIAL CENTER [№ 10 ' 2015]
Research was conducted during the period from 2011 to 2014. In the territory of the city of Ufa 14 constants of the trial areas by standard techniques were put. For definition of the morphological features used for an assessment of stability of development of plantings of a birch (Betula pendula Roth) on each trial square 10 trees were numbered and from each tree during the vegetative season samples of leaves were monthly selected (till 20–30 pieces). The size of an integrated indicator of stability of development of plantings of a birch in the conditions of the Ufa industrial center, both in the territory with industrial pollution, and in the territory with the raised recreational loading is received. The analysis of an integrated indicator of stability of development of separate trees of a birch in plantings in the territory of the Ufa industrial center allowed to reveal considerable distinctions in indicators of asymmetry of sheet plates. The integrated indicator of stability of development of plantings is received. The analysis of results of researches testifies that dynamics of formation of a leaf of a birch is broken. The leaf is formed with deviations. That characterizes reaction of plants to a stress factor. Frequency of occurrence of indicators of stability of development depending on a growth zone was determined. Materials are generalized, the conclusion about frequencies of occurrence of asymmetry depending on pollution zones is made. On the basis of monitoring conclusions are drawn that the condition of wood plantings in the conditions of the Ufa industrial center needs to be investigated with the numbered trees on a network of the constant trial areas.

Averchenkova E., Averchenkov A., Kulagina N., Aksenenko D.
THE MODEL ASSESSING THE POTENTIAL OF CREATION AND DEVELOPMENT OF CLUSTER AGGLOMERATION IN THE INDUSTRIAL COMPLEX OF BRYANSK REGION [№ 8 ' 2015]
The article describes the features for creation the cluster agglomerations in the Bryansk region in the framework of the Strategy of innovation development of Russian Federation for the period till 2020. There is algorithm for the assessment of possibility for creation and development the cluster agglomeration in machine building industry of Bryansk region. In accordant with it, the region is considered as a social economic system. It has interconnected-governmental and interacting components, and the relationships between them in a changing environment. On the basis of a mathematical model of cooperation regional social economic system with the internal environment, and classification model of the indicators, defining innovative sub sectors of machine-building complex in the Bryansk region, it was formed multivariate model, which determines the position of sub sectors of machine-building complex in the Bryansk region in point of view the making of cluster agglomeration. The work result is the creation of the priorities list for the region cluster agglomeration formation. So, it was proposed the model of information advising system of the evaluation and diagnostic type. The main goal of the proposed information advising system is constant observing over the cluster functioning, identifying positive and negative trends of changing regional social and economic system and it's environment. The output system parameters are increasing the quality of the managerial decisions in clustered agglomerations.

Valeyeva L.A., Kulagina I.G., Yafayeva E.G.
THE EFFECT OF DIAZEPAM ON MOTION ACTIVITY OF RATS DEPENDING ON THE CIRCADIAN TIME AND DENSITY OF CEREBRAL GABA RECEPTORS [№ 6 ' 2014]
The effect of diazepam on motion activity in rats after morning and evening introduction has been studied. It has been found that maximal suppressing effect of the medecation on the motion coefficient in a test "open area" is observed after evening introduction at the highest density of cerebral GABA receptors. After morning injection the suppressing effect is observed twice, i.e. immediately after the injection and during evening hours against the background of receptor increase.

Kulagina T.I.
THEMODELOFTHEDEVELOPMENTOF COGNITIVE INDEPENDENCE OF STUDENTS OF ECONOMIC SPECIALITIESIN LEARNING OF A FOREIGN LANGUAGE [№ 11 ' 2013]
The structure and content of a model of cognitive autonomy of students of economic specialitiesin learning a foreign languageis definedas the one built on integrity, completeness, consistency,interconditionality and interdependence of its components: the laws and principles, stages, goals, content, methods, forms and results, ie. didactic system that ensures the development of cognitive independence.

Khisamov R.R., Kulagin A.A.
USE OF HONEY RESOURCES IN PREDULASKAYA STEPPE IN BASHKORTOSTAN [№ 12 ' 2009]
The article presents data of the use of natural melliferous in the forests and agrocenoses in the Western region of Bashkortostan beekeeping industry. It is established that having good potential for development of beekeeping in the region it is necessary to solve the questions of detailed inventory of existing honey resources and to develop the conditions for their realization on the base of geo-botanical surveys.

Ushakova Yu.V., Kulagina E.P., Chepasov V.I.
DETERMINATION OF IGF-1 AND LEPTIN IN BLOOD SERUM OF PATIENTS WITH PANCREATIC DIABETES AND DIABETIC NEPHROPATHY AND DEVELOPMENT OF METHODS FOR IDENTIFICATION OF GROUPS OF PATIENTS WITH DN [№ 9 ' 2009]
Target of examination was study of level of serum IGF-1 and leptin of patients with diabetic nephropathy (DN) and development of the methods which would allow to prognose rates of IGF-1 and leptin of children with DN and identify the group of patients with unknown pathology. 24 children 3-18 years aged (average age 14,78 years{95% DN: 13,52-16,04}) have been examined. Clinico-laboratory figures, rates of concentration of IGF-1 and leptin in blood serum have been valuated. They used multivariate statistics methods (correlation analysis, factor analysis and regression analysis) to detect patterns of relationship between main rates of the examined group. As to children with DN, their serum IGF-1 concentration is determined by the age of a patient at the moment of investigation; index of interlobar renal arteries pulsation; decrease of passing rate of radiopharmaceutical through bloodstream by left kidney; time of getting maximum in left kidney. The level of serum leptin of children belonging to the investigated group is characterized by a relative insulin dose of short effect.

Aralbaeva L.S., Urazgildin R.V., Kulagin А.Yu.
ASSESSMENT OF RELATIVE LIVING CONDITIONS AND STABILITY OF THE DROOPING BIRCH (BETULA PENDULA ROTH.) DEVELOPMENT IN THE CITY OF SALAVAT [№ 6 ' 2009]

Ganeev I.G., Kulagin A.A.
REMEDIATION AND RECLAIMING OF MAN-CAUSED DEGRADED LANDS [№ 6 ' 2009]

Gorichev Yu.P., Davydychev A.N., Kulagin A.Yu., Suleimanov R.R.
SOIL-FOREST CONDITIONS OF WEST PART OF SOUTHERN-URAL RESERVE [№ 6 ' 2009]

Diarova E.R., Giniyatulin R.Kh., Kulagin A.A.
METAL CONTENT IN WOOD PLANTS, GROWING ON DUMPS OF UCHALINSK ORE MINING AND PROCESSING ENTERPRISE IN BASHKORTOSTAN [№ 6 ' 2009]

Khatmullin R.Z., Kulagin A.Yu., Urazgildin R.V.
APPRAISAL OF NATURAL REPRODUCTION OF SCOTCH PINE (PINUS SYLVESTRIS L.) AT NATURAL AND ANTHROPOGENIC-DISTURBED LANDSCAPES OF SOUTH URAL [№ 6 ' 2009]

Khisamov R.R., Kulagin A.A.
ECOLOGICAL PROBLEMS OF PRESERVATION OF CHERNOZEM FERTILITY AND BIOVARIETY ON THE FIELDS WITH PROTECTIVE AFFORESTATION [№ 6 ' 2009]


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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© Электронное периодическое издание: ВЕСТНИК ОГУ on-line (VESTNIK OSU on-line), ISSN on-line 1814-6465
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Учредитель: Оренбургский государственный университет (ОГУ)
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