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Search Results: 1 - 10 of 2633 matches for " Sergei Hablak "
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Role of a Signalling System in Gene Interaction in Inheritance of Root System Characteristics of Arabidopsis thaliana (L.) Heynh.  [PDF]
Sergei Hablak
Open Journal of Genetics (OJGen) , 2016, DOI: 10.4236/ojgen.2016.63006
Abstract: The central problem of genetics is gene interaction since genes in the course of individual organism development interact with other genes, that’s why their effects may change. Studies for the last 100 years managed to discover that the entire diversity of inter-gene interactions is presented in four major forms: complementarity, epistasis, polymery, and modifying effect of genes. However, gene interaction mechanism which is reflected on the segregation nature of variously crossed hybrids has not been sufficiently studied. Exclusive of molecular genetics, biochemistry and physiology, a genetic analysis of inheritance of characteristics in gene interaction taken by itself cannot reveal nature of this interaction. Lately, molecular-genetic and physiological studies on A. thaliana mutants have enabled to isolate and sequence a wide range of genes controlling certain links of the signalling chain. At the same time, effect of the plant development regulation signalling system on interaction of these genes in inheritance of characteristics of Arabidopsis root system haven’t been studied so far which was a cause for our studies. Gene interaction problem is closely related to the plant development regulation signalling system. Mechanism involved in gene interaction may be explained based on current idea of molecular principles of biological response. Affected by mutations occurring in various genes that control certain links of the signalling chain, signalling path to the cell nucleus and response are blocked partially or in full which leads to distortion in expression of the characteristic on the plant level in general or its organ level. Such phenomenon is observed in realization of many characteristics in animals and plants, including in A. thaliana. In inheritance of such characteristics, as a rule, both allelic, and non-allelic gene interactions are observed. Results of a study of the plant signalling system interconnection and gene interaction in inheritance of characteristics of Arabidopsis root system are presented. It is established that complementary interaction of genes RHD3 and SAR1 is observed in the second crossing generation for plants of rhd3-1 × sar-1 mutant lines. When gpa1-3 × slr-1 mutant-line plants are crossed, recessive epistasis (slr-1 slr-1 > GPA1_) occurs in F2 generation. Polymeric interaction of genes SHY2 and MSG1 is observed in F2 in crossing of shy2-2 × msg1-2 mutant-line plants.
Reflections of a Computer Poet on American Social Dynamics (Or How This Makes Sense)  [PDF]
Sergei Manzhos
Advances in Literary Study (ALS) , 2014, DOI: 10.4236/als.2014.22009
Abstract:

We analyze computer-generated poems written with a mesostomatic algorithm. We show that computer-generated poetry is meaningful in the same way as human-generated poetry and that this poetic meaning must renounce one-to-one correspondence to reality, objective or subjective. We further show that the ability of a computer poet to produce meaning is stable with respect to a change in language. On this basis, the computer poet’s reflections on some events in modern American history are analyzed by close reading.

Problem of Nuclear Decay by Proton Emission in Fully Quantum Consideration: Calculations of Penetrability and Role of Boundary Conditions  [PDF]
Sergei P Maydanyuk, Sergei V Belchikov
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.26067
Abstract: We develop a new fully quantum method for determination of widths for nuclear decay by proton emission where multiple internal reflections of wave packet describing tunneling process inside proton-nucleus radial barrier are taken into account. Exact solutions for amplitudes of wave function, penetrability T and reflection R (estimated for the first time for decay problem) are found for n -step barrier (at arbitrary n) which approximates the realistic barrier. In contrast to semiclassical approach and two-potential approach, we establish by this method essential dependence of the penetrability on the starting point Rform in the internal well where proton starts to move outside (for example, for Ta the penetrability is changed up to 200 times; accuracy is T+R-1|<1.5.10-15 ). We impose a new condition: in the beginning of the proton decay the proton starts to move outside from minimum of the well. Such a condition provides minimal calculated half-life and gives stable basis for predictions. However, the half-lives calculated by such an approach turn out to be a little closer to experimental data in comparison with the semiclassical half-lives. Estimated influence of the external barrier region is up to 1.5 times for changed penetrability.
Place and Role of Norms and Sources of International Law in the Legal System of the Russian Federation: The Doctrinal Exploration and the Legislative Development of the Constitutional Principle  [PDF]
Sergei Yu. Marochkin
Beijing Law Review (BLR) , 2012, DOI: 10.4236/blr.2012.32005
Abstract: The article introduces one of the aspects of the national legislation and of the Russian doctrine concerning the entire problem—implementation of generally recognized principles and norms of international law (IL) and international treaties as an integral part of the legal system of Russia. It can be interesting for at least two reasons. First, the Constitution of the country establishes the direct application of international obligations in the domestic matters without their incorporation into the legislation. Not many countries go this way. Second, one can say about the whole theory consisting of a complex of aspects elaborated by the Russian doctrine of IL concerning of operation and realization of international norms. Some propositions and conclusions of this theory could be interesting and useful for colleagues in the countries where implementation of IL norms is also based on the principle of their direct application. In particular, the article examines the question of how the constitutional provision on the place and role of international obligations is being interpreted in the theory and developed in the legislation. The situation of the 90’s years of the past century and in the first decade of the current century is being compared. It is noted that the practice (especially judicial) moves forward leaving the legislation and legal theory behind in understanding of the constitutional principle’s content, what does not conduce to full and precise realization of one of the foundations of the constitutional system of the country.
Intelligent System for Parallel Fault-Tolerant Diagnostic Tests Construction  [PDF]
Anna Yankovskaya, Sergei Kitler
Journal of Software Engineering and Applications (JSEA) , 2013, DOI: 10.4236/jsea.2013.64A007
Abstract:

This investigation deals with the intelligent system for parallel fault-tolerant diagnostic tests construction. A modified parallel algorithm for fault-tolerant diagnostic tests construction is proposed. The algorithm is allowed to optimize processing time on tests construction. A matrix model of data and knowledge representation, as well as various kinds of regularities in data and knowledge are presented. Applied intelligent system for diagnostic of mental health of population which is developed with the use of intelligent system for parallel fault-tolerant DTs construction is suggested.

The Climate Change Impact on Russia’s Wind Energy Resource: Current Areas of Research  [PDF]
Sergei Soldatenko, Lev Karlin
Energy and Power Engineering (EPE) , 2014, DOI: 10.4236/epe.2014.611032
Abstract: Exploration of the climate change impact on wind energy is a focus of scientific analysis and research in many countries around the world. Previous studies have demonstrated that over the last three decades measured wind in the boundary and surface layer of the atmosphere has changed all over the globe. However, effects of climate change on the wind energy sector of Russia are not well explored. Therefore, the Russian climate change research needs to focus on improving the analysis and prediction of wind characteristics that are most relevant to Russia’s wind energy development. This paper analyzes the effects of global climate change on the patterns of the general circulation of the atmosphere, large-scale atmospheric temperature field and dynamics, as well as wind speed in the planetary boundary layer and, in particular, in the atmospheric surface layer, with regards to Russia’s geographical location and its climatic characteristics. This paper also explores and discusses current areas of climate change research relevant for estimating the wind energy potential in Russia. Two areas of research are emphasized: study of the impact of global warming on poleward shifts of the large-scale synoptic eddies which strongly affect the weather patterns and wind field over large territories; and the study of the effects of ice melting in Arctic seas which significantly alter the properties of the underlying surface and, thus, speed and direction of wind in the surface layer.
Option Pricing Model for Incomplete Market
Sergei Fedotov,Sergei Mikhailov
Physics , 1998,
Abstract: The problem of determining the European-style option price in the incomplete market has been examined within the framework of stochastic optimization. An analytic method based on the discrete dynamic programming equation (Bellman equation) has been developed that gives the general formalism for determining the option price and the optimal trading strategy (optimal control policy) that reduces total risk inherent in writing the option. The basic purpose of paper is to present an effective algorithm that can be used in practice. Keywords: option pricing, incomplete market, transaction costs, stochastic optimization, Bellman equation.
The Kontsevich integral
Sergei Chmutov,Sergei Duzhin
Mathematics , 2005,
Abstract: This is an overview article on the Kontsevich integral written for the Encyclopedia of Mathematical Physics, to be published by Elsevier.
Integrability of the Bakirov System: A Zero-Curvature Representation
Sergei Sakovich
International Journal of Mathematics and Mathematical Sciences , 2011, DOI: 10.1155/2011/497828
Abstract: For the Bakirov system, which is known to possess only one higher-order local generalized symmetry, we explicitly find a zero-curvature representation containing an essential parameter.
Mapping Cosmological Observables to the Dark Kinetics
Bashinsky, Sergei
High Energy Physics - Phenomenology , 2007,
Abstract: We study systematically which features in the cosmic microwave background (CMB) and large-scale structure (LSS) probe various inhomogeneous properties of the dark sectors (including neutrinos, dark matter, and dark energy). We stress, and quantify by simple formulas, that the primary CMB anisotropies are very susceptible to the gravitational potentials during horizon entry, less at recombination. The CMB thus allows us to scan \Phi+\Psi and the underlying dark kinetics for all redshifts z~1-10^5. LSS, on the other hand, responds strongest to \Phi at low redshifts. Dark perturbations are often parameterized by the anisotropic stress and effective sound speed (stiffness). We find that the dark anisotropic stress and stiffness influence the visible species at the correspondingly early and late stages of horizon entry, and affect stronger respectively the CMB and LSS. The CMB yet remains essential to probing the stiff perturbations of light neutrinos and dark energy, detectable only during horizon entry. The clustering of dark species and large propagation speed of their inhomogeneities also map to distinctive features in the CMB and LSS. -Any parameterization of the signatures of dark kinetics that assumes general relativity can effectively accommodate any modified gravity (MG) that retains the equivalence principle for the visible sectors. This implies that formally the nonstandard structure growth or \Phi/\Psi ratio, while indicative, are not definitive MG signatures. The definitive signatures of MG may include the strong dependence of the apparent dark dynamics on visible species, its superluminality, and the nonstandard phenomenology of gravitational waves.
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