№ 99(5), May, 2014
Public date: 30.05.2014
Archive of journal: Articles count 106, 257 kb
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DEVELOPING A COUNTERMEASURES TO USING COVERT CHANNELS IN PACKET-SWITCHED NETWORKS
DescriptionIn the given article a model which allows defining general characteristics of covert channels in packet-switched networks as well as countermeasures to covert channels developed on the basis of the model in question are presented
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Description
In the article we present the results of the researches of creation of methods of calculation of the acoustic-magnetic devices. The technique, which allows to de-sign devices of various sizes and types has been pro-posed
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REGULARITIES OF THE SEASONAL DEVELOPMENT OF WOODY PLANTS AT INTRODUCTION IN ROSTOV-ON-DON
DescriptionThe article presents the average and optimal calendar dates of the main phenological phases exotic woody angiosperms in Rostov-on-Don. We assess the level of variability timing of individual phenological phases. The data obtained can be used to diagnose the prospects of exotic woody plants for the regional culture
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FEATURES OF DEVELOPMENT OF NATURAL SISTEMS AND AGRICULTURAL LANDSCAPES OF THE WESTERN AZOV
DescriptionWe know, that in the development of the natural ecosystems of the Western Priazovye its biomass predominates. This ensures the maximum protection from noticeable changes of habitat. Basic succession defining a significant shift of energy flow in the direction to increase of their expenditures to maintain forming populations determined by broad specialization of natural systems on ecological niches, and their individuals have rather small size, the life cycles of many of them are very simple and short. The coastal strip of the Azov Sea has been seriously degraded due to powerful recreational load, especially in the summer. Presumably one should expect an increased anthropogenic load on ecosystems of this area. Quite obvious is a regularity of overload agroecosystem which occupies the territory between the river and other water formations. The relatively low productivity of agricultural systems of the Eastern Azov is limited by number of factors, among which the main place is occupied with the moisture, nutrients and high weediness of sown areas
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FEATURES OF THE EVOLUTIONARY DEVEL-OPMENT OF LIFE FORMS OF HIGHER PLANTS
DescriptionClimatic cycles associated with global phases of create gasses are the reasons of oscillation ecosystems and their constituent. Ecological capacitance of systems increases or decreases due to the appearance of new ecological niches, which creating favorable conditions for expanding or narrowing opportunities of adapting new types of organization of living organisms and their significant changes. Conjugacy of the biological evolution of living organisms with geological crises and periodic variations in solar activity is observed. Direction in the development of plant life forms since the beginning of their occurrence was quite varied. The most deeply the development of life forms was developed for flowering plants, starting from of different groups of gymnosperms. The main reasons for selection of life forms are due to challenges facing researchers
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Description
The analysis of the variability dynamics of recombination frequency in the population of splitting F2 interspecific and intraspecific tomato hybrids has been carries out. It was discovered that recombination frequency depends on the components of cross breeding. It has been established that it is reasonable to use mutant forms of Мо 393, Мо 628 and interspecific hybrid F1 Мо 628 × L. esculentum var. racemigerum in selection process as an inductor of genotypic variability
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ANIMAL HEALTH - CRITICAL FACTORS OF THE LIVESTOCK
DescriptionThe article provides an overview of materials of conferences on problems and prospects of the industry of cattle breeding
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ABOUT POLARIZATIONS EFFECTS IN THE RANKS OF ЭХ3 MOLECULES
DescriptionCorrelations between experimental dipoles moments and values of the difference of first potentials ionization of atoms and molecules (ΔE) for three -coordinated molecules of types ЭХ3 (Э=N, P, As, Sb are carried out; X=F, Cl, Br, I ) are described. Exponential functions of dependence μ= f(ΔE) for rows ЭF3 andЭCl3 are received. Within the valence of shell electron pair repulsion theory it is shown, that the molecular dipole moments can be divided to dipol moments of ions of separate atoms, which, naturally changing, are transferred in the ranks of molecules ЭХ3
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SYNTESIS OF 2-R-4-HYDROXYMETHYL-6-METHYLNICOTINATES OF ALKALINE METALS
DescriptionNew 2-R-4-hydroxymethyl-6-methylnikotinates of alkaline metals are synthesized by alkaline hydrolysis of derivatives 6-methyl-1,3-dihydrofuro-[3,4-c]pyridine-3-on
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01.00.00 Physical-mathematical sciences
PREDICTIVE POWER – THE BEST INDICATOR OF THE QUALITY OF THE DIAGNOSTIC ALGORITHM
01.00.00 Physical-mathematical sciences
DescriptionInexpediency of use of probability of correct diagnostics as a quality indicator of diagnostic algorithm is shown. The new indicator - the prognostic strength based on Mahalanobis distance between classes is offered and studied. We have found asymptotic distribution of the prognostic strength; the way of testing of adequacy of its application has been specified. In a problem of testing of two simple hypotheses the prognostic strength connection is established with Hellinger distance