bluuebunny/crossref_metadata_2025 huggingface dataset:
STABILITY OF ROTATING CIRCULAR CYLINDRICAL SHELL SUBJECT TO AN AXIAL AND ROTATIONAL FLUID FLOW
Authors: Bochkarev S.A. , Matveenko V.P.
Published: October 2020

This paper is concerned with the stability analysis of rotating cylindrical shells conveying a co-rotating fluid. The problem is solved by the finite element method for shells subjected to different boundary conditions. It has been found that the loss of stability for a rotating shell under the action of the fluid having both axial and circumferential velocity components depends on the type of boundary conditions imposed on the shell ends. The results of numerical calculations have shown that for different variants of boundary conditions a simultaneous rotation of shell and the fluid causes an increase or decrease in the critical velocity of axial fluid flow.
TO THE THEORY OF PRESSURE DECREASE OF STEAM ADJOINING TO A LIQUID IN THE CLOSED VOLUME
Authors: Shagapov V.Sh. , Yumagulova Y.A.
Published: October 2020

In work the problem of pressure decrease of steam in the closed volume owing to condensation on border of contact to a cold liquid is considered. The nonlinear integrodifferential equations which numerical decision is executed by a method of final differences are received. Influence of an initial condition and the expense of a liquid, the geometrical size of the closed volume on rate of pressure decrease is analysed.
SYNTHESIS OF SOME AZOLIDES OF 2-PHTHALIMIDOETHANESULFONIC ACID
Authors: Purygin P.P. , Yudakhina T.S.
Published: October 2020

New azolides of 2-phthalimidoethanesulfonic acid (imidazolide, 2-methylimidazolide, 2-isopropylimidazolide, 4-methylimidazolide, benzimidazolide, 1,2,4-triazolide) to research their biological activity and reactivity were synthesized with the aim of their future study.
A COMPARATIVE ANALYSIS OF CHANGES IN PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF HETEROSEXUAL AND DIFFERENT AGES OF SCHOOL CHILDREN WORKING IN COMPUTER'S CONDITIONS
Authors: Sokotun S.A. , Korchikov E.S.
Published: October 2020

Changes of physiological and biochemical parameters of schoolchildren working behind a computer are investigated. The comparative analysis of changes of these parameters from heterosexual and different schoolchildren age was given. The results testifying to functional shifts of adaptable systems of an organism at sixth- and eight- graders at work behind a liquid crystal monitors of a computer are received.
EXPONENTS OF SOME VARIETIES OF LEIBNIZ — POISSON ALGEBRAS
Authors: Ratseev S.M. , Cherevatenko O.I.
Published: October 2020

In the paper equivalent conditions for the estimation of growth of varieties of Leibniz — Poisson algebras with nilpotent commutant are received.
THE THEOREM OF AVERAGING IN THE CONDITION OF UNLIMETED SPEED FOR ALMOST-PERIODIC FUNCTIONS
Authors: Filatov O.P.
Published: October 2020

It is proved that the limit of maximal mean is an independent variable of initial conditions if an axis exists from the convex hull of a set of permitted speeds out of a finite-dimensional space and the components of direction vector of the axis are the independent variables with respect to a spectrum of almost-periodic function. The set of permitted speeds is the right hand of differential inclusion. The limit of maximal mean is taken over all solutions of the Couchy problem for the differential inclusion.
POINT SPREAD FUNCTION OF FOUR-WAVE RADIATION CONVERTER ON THE KERR NONLINEARITY UNDER QUASIPERPENDICULAR INTERACTION
Authors: Ivakhnik V.V. , Kaurov A.V. , Nikonov V.I.
Published: October 2020

Accuracy of conversion of radiation by degenerate four-wave-converter on the Kerr nonlinearity under quasiperpendicular interaction geometry was analyzed with the use of point spread function method. The increasing of accuracy of radiation conversion by such converter compared to the same converter with quasicollinear geometry interaction. Correlation between the half-width module of point spread function and divergence of the pump wave, position of the focusing plane of signal wave, shear wave propagation direction with respect to the pump face of the nonlinear layer were obtained.
INVARIANT INTEGRALS IN EQUILIBRIUM PROBLEM FOR A TIMOSHENKO TYPE PLATE WITH THE SIGNORINI TYPE CONDITION ON THE CRACK
Authors: Lazarev N.P.
Published: October 2020

The equilibrium problem for the elastic Timoshenko type plate with a crack is considered. On the crack faces, the non-penetration conditions of inequality type (Signorini type conditions) are given. It is proved that there exist invariant integrals that are equal to the derivative of the energy functional with respect to perturbation parameter.
ON SOME PROBLEMS FOR A LOADED PARABOLIC-HYPERBOLIC EQUATION
Authors: Tarasenko A.V.
Published: October 2020

Some problems with various boundary conditions for the loaded mixed type equation in rectangular area are studied. The criterion of uniqueness is established and theorems of an existence of solutions to the problems are proved. The solutions are constructed as Fourier series with respect to eigenfunctions of a corresponding one-dimensional problem.
NUMERICAL METHOD FOR THE SOLUTION OF INVERSE PROBLEMS GENERATED BY PERTURBATIONS OF SELF-ADJOINT OPERATORS BY METHOD OF REGULARIZED TRACES
Authors: Kadchenko S.I.
Published: October 2020

In the article a new method for the solution of inverse problems generated by perturbations of self-adjoint operators on their spectral characteristics is developed. The method was tested on inverse problems for Sturm-Liouville problems. The results of numerous calculations showed the computational efficiency of the method.
ON SYMMETRIC CLOSED CLASSES OF FUNCTION PRESERVING EVERY UNARY PREDICATE
Authors: Polyakov N.L. , Shamolin M.V.
Published: October 2020

The activity presents an efficient description of symmetric closed classes of discrete functions preserving every unary predicate.
NUMERICAL METHOD OF CONSTRUCTION OF EIGEN VALUE SPECTRUM OF A NON LINEAR PROBLEM ARISING FROM ONE PROBLEM OF MIXED DEFORMATION OF PLATE WITH CRACK
Authors: Adylina E.M.
Published: October 2020

In the work a method of numerical finding of eigen values of class of non linear problems on eigen values arising from the problem of defining stress-edly-deformed state near the apex of crack in the materials with exponential determining equations in conditions of compound deforming in full range of mixed forms of deformation from normal fracture up to simple shear is suggested. With the help of suggested approach new eigen values of the problem, different from the known eigen value, that corresponds to the classical solution of Hutchison-Rice-Rosengren are obtained.
NUMERICAL METHOD FOR SOLVING INVERSE SPECTRAL PROBLEMS GENERATED BY PERTURBED SELF-ADJOINT OPERATORS
Authors: Kadchenko S.I.
Published: October 2020

A new numerical method for solving inverse spectral problems generated by perturbed self-adjoint operators from their spectral characteristics is developed. The method was tested on the problems for perturbed Sturm - Liouville operator. The results of numerous calculations have shown its computational efficiency. The simple algebraic formulas for finding the eigenvalues of discrete operators was found. At that the calculation of eigenvalues of perturbed self-adjoint operator can start from any number, no matter known the eigenvalues from previous numbers or not.
SELF-SIMILAR SOLUTION TO THE PROBLEM OF MIXED DEFORMATION OF PLATE WITH A CRACK TIP IN A DAMAGED MEDIUM
Authors: Stepanova L.V. , Adylina E.M.
Published: October 2020

In the article asymptotic solution of the problem of defining of stressed state of strain and field of continousness in the neighbourhood of crack tip in the sample which is in state of mixed deformation is received. On the basis of self-similar presentation of solution and hypothesis about the formation of area fully defragmentated material near the crack tip, the distribution of strains, speed of deformation and continuousness of a stationary crack in a damaged medium at full range of mixed forms deformation (from simple share to normal fracture) is obtained. Highest approximations in asymptotic resolution of fields of strain, speed of deformation of creep and continuous are obtained.
MULTI-SCALE STRESS-DEFORMATION STATUS OF POROUS GEOLOGICAL STRUCTURE AS RELATED TO WELL FILTRATION FLOWS
Authors: Astafiev V.I. , Kakhidze M.G. , Popkov V.I. , Popkova A.V.
Published: October 2020

Mono-harmonic junction in the interaction of porous space rock stress in oil/gas saturated reservoirs and averaged hydro-dynamic flows of viscous oil towards wells obtained as a result of innovative decisions in oil industry in general is presented. Within the frames of block homogeneous models of a well through the application of 3D linear theory of wave diffusion along the surface of geophysical emission layer, mathematical statement of asymmetrical filtration challenge with finite velocity of effect is presented. Dispersive ratios for constrained and resonant dissipative structures in a shear layer of viscous-elastic filtration at the edge of a slug of water-oil displacement are given. The redistribution results for the averaged inflow profile of viscous Newtonian filtration into asymmetrical energy-stable stress-deformation status inside the saturated porous media at various constraints: in conditions of enclosed or capillary-clamped boundary and in non-constrained conditions - at the frontier of displacement or with stimulation of water-flood displacement in zones of stagnation is presented.
CANARD CURVES IN THE DYNAMIC MODEL OF FOREST INSECT PESTS
Authors: Troshkina E.V.
Published: October 2020

The paper is concerned with the investigation of the model of dynamics of population of caterpillar budworm (Choristoneura fumiferana). The system solutions behavior depending on the parameters values has been investigated, conditions of origination of canard curves have been found.
DEVELOPMENT OF METHOD OF e-LAYER FOR FINDING INTERVAL ESTIMATES OF QUASIDETERMINED PROCESSES
Authors: Suchkova L.I. , Yakunin A.G.
Published: October 2020

In the paper the basic regulations of method of е-layer are presented and on their basis the evaluation of interval estimations of parameters of modelling functions of quasidetermined processes is considered. As examples of modelling functions polynomials of the first and second order are chosen. The reduction of е-area in space of parametres at processing of samples in signal realisation is shown.
DEFINITION OF STAGNANT ZONE OF FLOW OF VISCOUS INCOMPRESSIBLE MICROSTRUCTURAL LIQUID BETWEEN COAXIAL CYLINDERS IN THE PRESENCE OF PRESSURE GRADIENT
Authors: Egorov M.V.
Published: October 2020

In this work mathematical modeling of flow of viscous liquid between coaxial cylinders in the presence of homogeneous structure and pressure gradient. Problem definition in the rate of movement is formulated. Finite - difference scheme is received. Numerical computation is received. The geometrical dimensions of zone of liquid flow with low speed are shown.
ASYMPTOTICS OF STRESS AND CONTINUITY FIELDS NEAR A FATIGUE GROWING CRACK IN A DAMAGED MEDIUM IN CONDITIONS OF STATE OF PLANE STRESS
Authors: Igonin S.A. , Stepanova L.V.
Published: October 2020

In the paper asymptotic solution to the problem of growth of fatigue crack in conditions of repeated loading in a damaged medium in the coupled elasticity-damage statement of the problem is given. Asymptotic expansions of stress fields and continuity fields in which two summands are retained in asymptotic representation are derived. The problems of determination of amplitude coeffl-cients of obtained asymptotic expansions are discussed.
TIME DEPENDENCE OF THE POINT SPREAD FUNCTION OF A FOUR-WAVE CONVERTER IN A WAVEGUIDE WITH THERMAL NONLINEARITY
Authors: Vorobieva E.V. , Ivakhnik V.V. , Luneva M.V.
Published: October 2020

The time dependence of a quality of wave-front reversal has been analyzed at four-wave interaction in a waveguide with thermal nonlinearity. The inﬂuence of waveguide parameters and mode structure of pumping waves on time dependence character has been investigated. It has been shown, that increases of number of single-mode pumping waves lead to decreases of diﬀerence in point spread function width in steady state and initial state.
ANALYSIS OF NUMBER AND DISTRIBUTION OF SOME TYPES OF MARTEN FAMILY IN THE KINELSKY REGION OF THE SAMARA REGION
Authors: Fokina M.E.
Published: October 2020

The article provides data on the distribution in the Kinelsky District of the Samara Region of some members of the Mustelidae family (American mink, pine marten, forest polecat and steppe polecat) in three biotopes (lime-oak deciduous forest, fallow lands and ﬁelds, riparian areas of the ﬂoodplain in Samara River valley). It is noted that the traces of American mink were found only in riparian areas near the thawed patches and ﬁshing holes where animals foraging. European pine marten occurs in all biotopes avoiding unforested sites, but the greatest number of traces was observed in the forest. Polecat traces were mostly recorded in the open areas. In the forest, they were observed every year, but in smaller quantities. The work also presents data on the population dynamics of mustelids in the Kinelsky District of the Samara Region in the winter period of 2005-2011.
WELL-POSEDNESS OF POINCARE PROBLEM IN THE CYLINDRICAL DOMAIN FOR A CLASS OF MULTI-DIMENSIONAL ELLIPTIC EQUATIONS
Authors: Aldashev S.A.
Published: October 2020

The boundary value problems for second order elliptic equations in domains with edges are well studied. For elliptic equations, boundary-value problems on the plane were shown to be well posed by using methods from the theory of analytic functions of complex variable. When the number of independent variables is greater than two, diﬃculties of fundamental nature arise. Highly attractive and convenient method of singular integral equations can hardly be applied, because the theory of multidimensional singular integral equations is still incomplete. In this paper with the help of the method suggested by the author, the unique solvability is shown and explicit form of classical solution of Poincare problem in a cylindrical domain for a one class of multidimensional elliptic equations is received.
NONLOCAL PROBLEM WITH INTEGRAL CONDITION FOR A FOURTH ORDER EQUATION
Authors: Beilina N.V.
Published: October 2020

In this paper, we consider a nonlocal problem with integral condition with respect to spacial variable for a forth order partial diﬀerential equation. The conditions on the data for unique solvability of the problem in Sobolev space are determined. Proving of uniqueness of generalized solution is based on acquired apriori estimates. To prove the solvability we use a following scheme: sequence of approximate solutions using Galerkin procedure is built, apriory estimates that allow to extract from it a convergent subsequence are received, on the ﬁnal stage it is shown that the limit of subsequence is the required generalized solution.
ON SPACES OF MODULAR FORMS OF EVEN WEIGHT
Authors: Voskresenskaya G.V.
Published: October 2020

In the article we study the structure of space of cusp forms of an even weight and a level N with the help of cusp forms of minimal weight of the same level. The exact cutting is studied when each cusp form is a product of ﬁxed function and a modular form of a smaller weight. Except the levels 17 and19 the cutting function is a multiplicative eta - product. In the common case the space f(z) M k-l(Γ0(N)) is not equal to the space Sk (Γ0(N)), the structure of additional space is competely studied. The result is depended on the value of the level modulo 12. Dimensions of spaces are calculated by the Cohen - Oesterle formula, the orders in cusps are calculated by the Biagioli formula.
LINEARLY ORDERED SPACE WHOSE SQUARE AND HIGHER POWERS CANNOT BE CONDENSED ONTO A NORMAL SPACE
Authors: Pavlov O.I.
Published: October 2020

One of the central tasks in the theory of condensations is to describe topological properties that can be improved by condensation (i.e. a continuous one-to-one mapping). Most of the known counterexamples in the ﬁeld deal with non-hereditary properties. We construct a countably compact linearly ordered (hence, monotonically normal, thus ” very strongly” hereditarily normal) topological space whose square and higher powers cannot be condensed onto a normal space. The constructed space is necessarily pseudocompact in all the powers, which complements a known result on condensations of non-pseudocompact spaces.
CORRELATION OF METABOLIC ACTIVITY OF MICROORGANISMS AND MICROARTHROPODS IN THE PROCESS OF DESTRUCTION OF PLANT RESIDUES
Authors: Simonov Y.V.
Published: October 2020

On the basis of instrumental studies the contribution of microorganisms and small arthropods to the metabolism of soil biota in the decomposition of plant residues was estimated numerically. The dependence of metabolism of biological degradation agents on their biomass was shown.
REDUCTION OF MATHEMATICAL MODEL OF ROBOT WITH ELASTIC JOINTS
Authors: Vidilina O.V. , Voropaeva N.V.
Published: October 2020

A model of n - joint manipulator with elastic joints with small dissipation is studied. Class of singularly perturbed diﬀerential systems that describe the dynamics of robot is singled out. For a given class of systems the existence and uniqueness of integral manifoldness of slow movement is established, its features are studied. It is proved that integral manifold may be constructed with any degree of accuracy as asymptotic decomposition inpowers of small parameter. System that is used to describe movement in manifolds may be used as a reduced model of initial system.
EIGENVALUE PROBLEM FOR THE LAPLACE OPERATOR WITH DISPLACEMENT IN DERIVATIVES
Authors: Gerasimov A.V. , Loginov B.V. , Yuldashev N.N.
Published: October 2020

The statement of the problem on the determination of eigen-and adjointfunctions for Laplace operator in s-dimensional unit ball with displacement in derivatives is given. For s =2 the conditions are obtained for the existence of adjoint functions of the not higher than three order and their computation is made. The case of arbitrary s is the subject of future work.
ASSOCIATES OF DOT DEFECTS OF VARIOUS NATURE IN SiC-PHASE OF SEMICONDUCTOR HETEROSTRUCTURE OF SiC//Si, RECEIVEDBY ENDOTAKSIYA METHOD
Authors: Chepurnov V.I.
Published: October 2020

One of the main ways of increasing of reliability of sensors of physical quantities on the basis of high-temperature and radiation-hardened heterostructure of β-SiC/Si is the analysis of technological aspects of its forming (endotaksiya) regarding concentration distribution of dot defects of various nature, their probable models of association with participation of foreign impurity. Besides, the analysis of reversible processes of association opens ways of optimization of kinetics of diﬀusive mass transfer at phase transformation of substrate of silicon into a ﬁlm of carbide of silicon. In the article dependences of concentration of neutral defects on factors of supersaturation of gas phase on conditional atomic concentration of carbon, from concentration of foreign impurity are given in a gas phase, from concentration of own defects of various nature having potential of formation of deep levels in the forbidden zone and potential of association. The analysis of the given dependences is made and recommendations about carrying out technological process of formation of diﬃcult heterostructures of diﬀerent function are made.
METHOD OF REGENERATION OF AZIDE ION
Authors: Vikulina E.L. , Romashin E.E. , Fedorov D.I. , Kukushkin I.K. , Pyzhov A.M. , Purygin P.P.
Published: October 2020

In this article the results of research devoted to the development of methods of disposal and regeneration of azide ion contained in the liquid wastes are stated. As a rule, all existing methods of disposal of azide ion in the liquid wastes based on its destruction, which is not only economically impractical because it is irretrievably lost, but also dangerous, as this forms an extremely explosive and toxic hydrazoic acid, which signiﬁcantly increases the risk of the process of disposal of liquid wastes. Researches carried out by the authors allowed for the ﬁrst time to suggest an eﬀective method of disposal of azide ion at producing organic azides that consists in deletion of azide ion from reaction mass in the form of azide of quaternary ammonium which is highly active azidating agent and can be eﬀectively used in the processes of getting organic azides. In this case at getting organic azides before its ﬁnishing quaternary amonium chloride is added to the reaction mass.
The study of catalytic activity ofcopper nanoparticles in the reaction of hydrogenation of hexyne-1
Authors: Mitina E.G. , Filimonov N.S. , Shaﬁgulin R.V. , Bulanova A.V. , Shishkovsky I.V. , Morozov Y.G.
Published: October 2020

The process of hydrogenation of unsaturated hydrocarbons is one of the main processes of the petrochemical industry. Unsaturated hydrocarbons are practi- cally inseparable from alkanes, which have the same mass, and to obtain high--quality gasoline unsaturated hydrocarbons are to be eliminated. Furthermore, acetylenic hydrocarbons must be removed from an oleﬁnic feedstock, which is intended for the production of polymers. These problems can be solved by using catalysts with diﬀerent selectivities. The article studied the copper nanoparti- cles in the hydrogenation reaction hexyne-1. The nanoparticles were obtained by means of levitation blasting and mixed with inerton. Analysis of the reaction mixture was performed by means of gas chromatography. We calculated the rate constants at diﬀerent temperatures and measured the activation energy of the reaction. It is shown that the ﬁrst hexyne-1 is converted to hexene-1, followed by hexane. Thus, the catalyst shows the analyzed selective properties, which enables selection of the conditions for obtaining the priority of a particular product.
On conditions of solvability of three-dimensional integralsystem in quadratures
Authors: Sozontova E.A.
Published: October 2020

In this paper we consider the system of equations with partial integrals in three-dimensional space. The purpose is to ﬁnd suﬃcient conditions of solvability of this system in quadratures. The proposed method is based on the reduction of the original system, ﬁrst, to the Goursat problem for a system of diﬀerential equations of the ﬁrst order, and after that to the three Goursat problems for diﬀerential equations of the third order. As a result, the suﬃcient conditions of solvability of the considering system in explicit form were obtained. The total number of cases discussing solvability is 16.
The limits of maximal means and no autonomous diﬀerentialinclusions
Authors: Filatov O.P.
Published: October 2020

The existence theorem of the limit of the maximum average for almost periodic functions on a stand-alone solutions of no autonomous differential inclusion, the right part of which depends on the time periodically is proved. The main condition is a condition of multiple attainability for a differential inclusion. This condition is satisfied, for example, for a constant right-hand side, which does not belong to the eigenspace of speeds. The result is related to the theory of averaging of differential inclusions with slow and fast variables.
U -projection for the adjoint representation of the groupGL( n, K)
Authors: Vyatkina K.A.
Published: October 2020

In the paper we study rings and ﬁelds of invariants for the adjoint represen- tation of the group GL(n, K) over the ﬁeld of zero characteristic. The aim of this paper is to construct the special linear operator, we call it U -projector, that maps any polynomial on the matrix algebra to an U -invariant rational function. In this paper we present two diﬀerent constructions of U -projector. Using the U -projector we obtain the system of generators of the ﬁeld of U -invariants of the adjoint representation of the group GL(n, K). We obtain the system of genera- tors of the ﬁeld of U -invariants for the restriction of the adjoint representation to the subgroup of block-diagonal matrices.
Mycobiota of the snow cover of the territory of Samaracity
Authors: Ovchinnicova T.A.
Published: October 2020

The article presents a characterization of mycobiota of the formed snow cover in Samara in 2013 and 2014. In the snow cover of suburb, uncontaminated areas of coastal parks Strukovsky and Zagorodnyi micromycetes were detected in the form of single colonies, or were not detected at all. Increase of microscopic fungi in the snow cover of the city (42 CFU/ml) was observed on the territories bordering highways, streams of people, that is due to the horizontal transfer of air masses. The composition of dominant micromycetes of the snow cover (a measure of occurrence was greater than 60 %) in 2013 and 2014 varied considerably and depended on the climatic conditions of the previous warm period of the year and the strength of the current winter frosts. Subdominant (incidence below 11 %), of the snow cover in winter periods studied were similar and were the fungi of the genus Alternaria, constantly prevailing in mycobiota air environment of the city in the summer-autumn period.
ESTIMATES OF POSITIVE NONTRIVIAL SOLUTIONS OF A DIFFERENTIAL EQUATION WITH POWER NONLINEARITY
Authors: Bezukhov D.A.
Published: October 2020

Differential equations in paper with power nonlinearity are considered. Solutions which are defined in some neighborhood of plus infinity are called proper solutions. It is proved that propersolution to the equation is kneser solution, which means that solution and it’s quasiderivatives change their signs and tend to zero. The integral representation for proper solutions is proved. Upper estimates for solution and it’s quasiderivatives for proper solutions with maximal interval of existence is positive semiaxis to the equation with quasiderivative are proved. Upper and lowerestimates of solution and it’s derivatives for proper solutions with maximal interval of existence is positive semiaxis to the equation with derivative are provedDifferential equationsy[n] = rn(x)ddx(rn
GERSTEN COMPLEX FOR SHEAVES WITH TRANSFERS FOR NOETHERIAN SCHEMES
Authors: Mingazov A.A.
Published: October 2020

V. Voevodsky introduced Gersten complex for sheaves with transfers in one of the ﬁrst papers where the category of motives was constructed. Becides he proved Gersten conjecture which states that the Gersten complex for the local ring of point of smooth variety over ﬁeld k is resolution of the group of global sections over this ring. Because of this fundamental fact Gersten complex can be used for calculations of cohomologies of sheaves with transfers over smooth k -varieties. In this paper we construct Gersten complex for sheaves with trans- fers, which deﬁned on the category of noetherian k -schemes, where char k = 0. After this we proof the Gersten conjecture in case of local noetherian ring over ﬁeld k . This generalises Voevodsky’s result.
INFLUENCE OF INITIAL DISLOCATION STRUCTURE ON POINT AND MICROSCOPIC DEFECTS KINETIC UNDER IRRADIATION
Authors: Kornilov D. A. , Kosenkov V. M. , Silantev P. P.
Published: October 2020

This work is aimed for justification of quantitative effect of radiation defect concentration decreasing in materials depending on density of edge dislocation which are their outlet. The results of defect kinetics modeling with taking into account their recombination on dislocation loops, edge dislocations and pores are given. The summery of this work is useful in the frame of solving problem of decreasing radiation swelling and material properties degradation during neutron irradiation.
THE BOUNDARY VALUE PROBLEM FOR A HYPERBOLIC EQUATION WITH BESSEL OPERATOR IN A RECTANGULAR DOMAIN WITH INTEGRAL BOUNDARY VALUE CONDITION OF THE FIRST KIND
Authors: Zaitseva N. V.
Published: October 2020

We consider a boundary value problem with integral nonlocal boundary condition of the first kind for a hyperbolic equation with Bessel differential operator in a rectangular domain. The equivalence of this problem and a local problem with boundary conditions of the second kind is established. The existence and uniqueness of solution of the equivalent problem are proved by means of the spectral method. The solution of the problem is obtained in the form of the Fourier-Bessel series. Convergence is proved in the class of regular solutions.
ON THE CLASSIFICATION OF FUNCTION GERMS OF TWO VARIABLES THAT ARE EQUIVARIANT SIMPLE WITH RESPECT TO AN ACTION OF THE CYCLIC GROUP OF ORDER THREE
Authors: Astashov E. A.
Published: October 2020

We consider the problem to classify function germs(C2, 0) (C, 0), that are equivariant simple with respect to nontrivial actions of the group Z3on C2and on C up to equivariant automorphism germs (C2, 0) (C2, 0).The complete classification of such germs is obtained in the case of nonscalar action of Z3on C2that is nontrivial in both coordinates. Namely, a germ is equivariant simple with respect to such a pair of actions if and only if it is equivalent to ine of the following germs:

(x, y) x3k+1+ y2, k 1;

(x, y) x2y + y3k1, k 2;

(x, y) x4+ xy3

(x, y) x4+ y5.
Effect of ultrasound on precision when cutting threads
Authors: Golovkin V. V. , Druzhinina M. V.
Published: October 2020

Results of research of influence of the compelled ultrasonic fluctuations on accuracy of a cut carving are given. It is shown that ultrasound application at a rezbonarezaniye allows to increase accuracy of cut carvings.
VIGILÂNCIA DA FRONTEIRA BRASILEIRA: UMA APLICAÇÃO DO MÉTODO DE ANÁLISE ENVOLTÓRIA DE DADOS
Authors: Gonçalves Freitas Mara Luiza
Published: October 2020

O presente estudo avalia a qualidade do gasto em segurança pública aplicado na região da fronteira internacional brasileira, à luz das Teorias dos Jogos, das Restrições e da perspectiva da Qualidade do Gasto Público emanada da Teoria das Finanças Públicas e do método da Análise Envoltória de Dados (DEA). Selecionou-se como sujeito a Polícia Federal (DPF) face às suas atribuições constitucionais. Para o cálculo do DEA selecionou-se como insumo o gasto per capita com o DPF colhidos numa série história entre 2010 e 2018, organizada a partir de várias fontes, e os respectivos resultados no período de operações realizadas, voltadas à mitigação do narcotráfico. As variáveis estão associadas à escolha estratégica do DPF em concentrar sua ação em aeroportos e portos e não na fronteira seca. Os escores calculados demonstram que a qualidade do gasto pelo ente está abaixo da fronteira da eficiência, sinalizando ineficiência. Face ao resultado, avaliou-se quantitativamente a consolidação da coalizão, com base na Teoria dos Jogos e a superação da restrição, com a realização do gasto na entrada, usando o DEA. A coalizão, embora não alcance a fronteira da eficiência, gera uma qualidade do gasto 50% maior do que quando alocada na área de litoral.
Fidelização de Clientes: análise das estratégias de marketing de relacionamento em Drogarias.
Authors: SOUZA JANAINA MARIA DE , OLIVEIRA VILMA ELIANE MACHADO DE , ANGOLA LIDIANE DA SILVA SOUZA , PEDRO SAMARA DE CARVALHO , MEDEIROS BRUNO MACHADO
Published: October 2020

Fidelização de Clientes: análise das estratégias de marketing de relacionamento em Drogarias. Resumo Este estudo tem como objetivo analisar as estratégias de marketing de relacionamento utilizadas por drogarias de Juara-MT na fidelização de clientes. A pesquisa tem natureza qualitativa, descritiva e exploratória e foi conduzida a partir de um estudo de caso múltiplo. A coleta de dados deu-se por meio de entrevistas, recolha de dados secundários e observação direta. Apesar de os resultados indicarem que os gestores das drogarias em questão terem conhecimento sobre marketing de relacionamento e entenderam a importância dessa estratégia para fidelização de clientes, constatou-se que, nas organizações estudadas, é necessário um maior envolvimento empresarial para a sua execução.
ONLINE ÉS A SZEMÉLYES JELENLÉTTEL TÁMOGATOTT INFORMÁCIÓFELDOLGOZÁS HATÁSAINAK LEHETSÉGES KÖVETKEZMÉNYEI A NYELVI KÉSZSÉGEK FEJLŐDÉSÉRE GYERMEKKORBAN
Authors: Schéder Veronika
Published: October 2020

Az alábbi tanulmány egy rövid áttekintést nyújt néhány olyan – hazai és nemzetközi – kutatási eredményről, amely a digitális eszközök gyermekkori használatának veszélyeire hívja fel a figyelmünket, különös tekintettel az idegrendszer, a mozgás- és beszédfejlődés lehetséges károsodásaira. Az adatokat mindenütt igyekszünk jól érthető magyarázatokkal is alátámasztani, fejlődésneurológiai és nyelvfejlődési szempontból megközelítve. A felvetett problémakör ellenlábasaként bemutatunk olyan lovas- és meseterápiás feladattípusokat, amelyek jól illusztrálják a személyes jelenlét, a hallott beszéd és a (főleg szabad levegőn eltöltött) mozgástevékenységek nélkülözhetetlen szerepét gyermekeink egyes részképességeinek, főként beszédprodukciós, beszédészlelési és beszédmegértési képességeinek/készségeinek fejlődésében. Az itt közölt esetek mindegyike lovasterápiás praxisunk tapasztalataiból származik. A tanulmány figyelemfelhívó célzattal született, ráirányítva tekintetünket arra, hogy gyermekeink digitális világgal való találkozásának optimális ütemezése még mindig nem megoldott, s hogy az off-line világ háttérbe szorulása több veszélyt rejt magában, mint azt sokan gondolják.
HAJDÚDOROG KORTÁRS TÁRSADALMI FOLYAMATAI
Authors: Soós Zsolt
Published: October 2020

A Hajdúdorogon lefolytatott kutatásunk egy hosszabb, tíz elemből álló kutatássorozat része, amelyben elsősorban az ország kedvezőtlenebb helyzetű régióiban fekvő, kisebb lakosságszámú települések főbb társadalmi jellemzőinek, aktuális társadalmi folyamatainak a feltérképezésére törekszünk. A kutatás során alapvetően a helyi lakosok nézőpontjainak a megismerése és megjelenítése a célunk. A kutatási helyszínek megválasztásában döntő szempont volt, hogy e perifériális régiók kisebb településein meglehetősen kedvezőtlen szocio-demográfiai folyamatok zajlanak, ideértve különösen a települési lakosságszám csökkenését, az idősödést és a hátrányos helyzetű lakosság számarányának a növekedését. E folyamatok - amennyiben nem történnek jelentősebb változások - még a jelenleginél is kedvezőtlenebb jövőképet vetítenek előre. E kedvezőtlen szocio-demográfiai tendenciák egyértelműen tetten érhetőek Hajdúdorogon. Ehhez kapcsolódóan a kutatás kiemelt céljának tekintettük az elvándorlásban leginkább érintett helyi fiatalság lehetőségeinek, céljainak és jövőképének, valamint a helyi közösségi kapcsolatoknak, ezen belül elsősorban a romák és a nem romák együttélési jellemzőinek a megismerését.
Escuela Técnica de Desarrollo y Diseño Industrial en Villa El Salvador
Authors:   ,   Universidad Peruana de Ciencias Aplicadas (UPC), Córdova Álvarez César Augusto
Published: October 2020

El distrito de Villa El Salvador cuenta con el conglomerado más grande de producción de materia prima y manufactura en Lima, teniendo al mueble como principal actividad económica y siendo complementado por el calzado, metalurgia, mecánica, textiles, entre otros. Generalmente, estas actividades se generan en el Parque Industrial, el cual concentra alrededor de 15,000 empresarios que se dedican a distintas actividades manufactureras, donde se encuentra un gran potencial para poder desarrollarse y crear progreso en el distrito. En la actualidad, lamentablemente estos procesos de trabajos, en su mayoría no son orientados por profesionales, sino por personas que han ido adquiriendo experiencia con el tiempo y sumándoles la falta de espacios adecuados para un desarrollo óptimo de aprendizaje y de producción. Por lo tanto, el objetivo que se quiere lograr es realizar una Escuela de Diseño Industrial para poder aprovechar este potencial con el que cuentan los habitantes y motivando a los jóvenes brindándoles las herramientas necesarias para lograr este objetivo y puedan desarrollarse en la producción, el arte y diseño, creando una identidad para su distrito.
KRÚDY GYULA ÉVTIZEDEI
Authors: GINTLI Tibor
Published: October 2020

Bori Imre a szakirodalomban mindmáig páratlan részletességű tanulmányt közölt Krúdy Gyula alkotói pályájának A vörös postakocsi megszületésétől a Hét Bagoly megjelenéséig terjedő időszakáról. Jelen dolgozat azt vizsgálja, hogy négy évtized távlatából visszatekintve mennyire tűnnek időtállónak a Krúdy-életműre vonatkozó hangsúlykijelölések, milyen meggyőző erővel rendelkezik a tárgyalt korszakot egységbe foglaló írószerepről alkotott koncepció, illetve melyek azok a narratív poétika körébe tartozó megfigyelések, amelyek a mai Krúdy-recepcióra is ösztönző hatással bírnak. Érdeklődése elsősorban arra irányul, hogy mai irodalomértelmezésünk horizontjából közelítve milyen módosításokra szorul a realista elbeszélői magatartást feltételező interpretáció, illetve azt is igyekszik körüljárni, hogy a diskurzusváltás ellenére milyen maradandónak mutatkozó eredményeket tudhat magáénak Bori Imre Krúdy-értelmezése.
Praktik Gharar Pada Hubungan Bisnis UMKM-Eksportir Furnitur di Jepara
Authors: Lidnillah Achmad Hijri , Mawardi Imron
Published: October 2020

This study aims to determine the type of gharar practiced in cooperation between Small and medium industry exporters of furniture to the furniture in Jepara district.This study used a qualitative descriptive approach with a case study strategy.Determinating techniques for informants in this study using snowball sampling. Data collected through interviews with research subjects and direct observation of the research object. The analysis technique used is descriptive analysis by using the method of data analysis and describes the results of interviews and direct observation.The results of this study indicate that gharar is practiced in the cooperation between the Small and medium industry with the company exporting furniture is unclear at the end of the time limit on credit payments by companies exporting furniture to the Small and medium industry as suppliers of goods to the company.
Nilai-Nilai Amanah Sebagai Strategi Fungsional Pada Rumah Makan Wong Solo Cabang Gresik
Authors: Noviandani Martha Ineke , Septiarini Dina Fitrisia
Published: October 2020

This research aims to know and analyze the moral values of the functional strategy in the Wong Solo restaurant of Gresik branch. The aspects of the moral values consist of responsibility, globalization, truth, good working and good services. The success standard of the moral values of the functional strategy can be seen from the achievement of the employment in doing the aspects above. The research is a qualitative approach with a case study strategy. Data collection is done by using interview and observation to the object of the research. An used analysis technique is descriptive-qualitative by narrating the result of the interview and observation to the object of research. The result of this research of Restaurant Wong Solo of Gresik Branch in developing the business has been able to do some moral values well. It can be seen from the responsibility of the employments. The success by doing the moral values can also be seen by good aspect. The company gives some facilities to the employments such as: financial, and healthy. In doing operational strategy, thecompany has operational standardization in the production process. All employments perform that standardization of the rule that is stated by the company.
Motivasi Pengusaha Dalam Pengembangan Inovasi Produk (Penelitian Deskriptif Terhadap Pengusaha Garmen Muslim di Gresik)
Authors: Imanda Ramadhany , Faizah Siti Inayatul
Published: October 2020

Motivation is an effort to push or move in order to reach goals based on its ability to satisfy the needs. Motivation of entrepreneurship in Islam is to work for a living as a duty to serve Allah SWT and someone’s heart level that motivates him/her into act based on Islamic dogma. Entrepreneurs put those Islamic religion aspects as prove that him/her is loyal to Allah SWT whichis arise because of the right intention, way and purpose to fulfill needs and performance’s improvement.This research’s aim is to find out the motivation of Moslem garment entrepreneur at Gresik into developing product innovation. This research is using qualitative approach with descriptive study, data are collected by a direct observation, interview and documentation toward Moslem garment entrepreneur at Gresik market region. Besides literature research which related to Islamic motivation and product innovation also needed.The result shows that Moslem garment entrepreneur at Gresik has motivated until appropiate teaching of entrepreneurship and Islamic jurisprudence to work independently in a living, working with an intention to worship Allah SWT. The motivation of the Moslem garment entrepreneur in Gresik try to do development of product innovation by doing modification and produce the Moslem’s garment which likeable by their consumer, develop the market segment, also fix their product to escalate the product quality and give some added value.
PSYCHOLOGICAL AND COGNITIVE REACTIONS TO COVID-19
Authors: Silva José Aparecido da , Santos Rosemary Conceição dos
Published: October 2020

This work deals with the psychological and cognitive reactions that are established in individuals experiencing the COVID-19 pandemic in four perspectives, namely: social isolation, psychological factors, personality factors and behavioral methods, established interdisciplinarily within the scope of Social and Human Sciences and Public / Collective Health. It also presents partial results obtained with the development of bibliographic research aimed at studying the impact of COVID-19 in environments of communication, journalism and / or individual and collective social education
A Versatile Open-source Printhead for Low-cost 3D Microextrusion-based Bioprinting
Authors: Sanz-Garcia Andres , Sodupe-Ortega Enrique , PERNIA-ESPINOZA ALPHA V. , Shimizu Tatsuya , Escobedo-Lucea Carmen
Published: October 2020

Three-dimensional (3D) bioprinting promises to be essential in tissue engineering for solving the rising demand for organs and tissues. Some bioprinters are commercially available, but their impact on the field of TE is still limited due to their cost or difficulty to tune. Herein, we present a low-cost easy-to-build printhead for microextrusion-based bioprinting (MEBB) that can be installed in many desktop 3D printers to transform them into 3D bioprinters. We can extrude bioinks with precise control of print temperature between 2 - 60 ºC. We validated the versatility of the printhead, by assembling it in three low-cost open-source desktop 3D printers. Multiple units of the printhead can also be easily put together in a single printer carriage for building a multi-material 3D bioprinter. Print resolution was evaluated by creating representative calibration models at different temperatures using natural hydrogels such as gelatin and alginate, and synthetic ones like poloxamer. Using one of the three modified low-cost 3D printers, we successfully printed cell-laden lattice constructs with cell viabilities higher than 90% after 24h post printing. Controlling temperature and pressure according to the rheological properties of the bioinks was essential in achieving optimal printability and great cell viability. The cost per unit of our device, which can be used with syringes of different volume, is less expensive than any other commercially available product. These data demonstrate an affordable open-source printhead with the potential to become a reliable alternative to commercial bioprinters for any laboratory.
Optimizing Window Design on Residential Building Facades by Considering Heat Transfer and Natural Lighting in Non-tropical Regions of Australia
Authors: Chen Zixuan , Hammad Ahmed W A , Kamardeen Imriyas , Haddad Assed
Published: October 2020

Windows account for a significant proportion of the total energy lost in buildings. The interaction of window type, Window-to-Wall Ratio (WWR) scheduled and window placement height would influence the natural lighting and heat transfer through windows. This is a pressing issue for non-tropical regions considering their high emissions and distinct climatic characteristics. A limitation exists in the adoption of common simulation-based optimisation approaches in the literature, which are hardly accessible to practitioners. This article develops a numerical-based window design optimisation model using a common Building Information Modelling (BIM) platform adopted throughout the industry, focusing on non-tropical regions of Australia. Three objective functions are proposed; the first objective is to maximize the available daylight, and the other two emphasize on the undesirable heat transfer through windows in summer and winter respectively. The developed model is tested on a case study located in Sydney, Australia, and a set of Pareto-optimum solutions is obtained. Through the use of the proposed model, energy savings of up to 16.43% are achieved. Key findings on the case example indicate that leveraging winter heat gain to reduce annual energy consumption should not be the top priority when designing windows for Sydney.
Role of Cigarette Smoke on ACE-2 Protein Membrane Expression in Bronchial Epithelial Cells Using an Air-Liquid Interface Model
Authors: Caruso Massimo , Distefano Alfio , Emma Rosalia , Di Rosa Michelino , Carota Giuseppe , Rust Sonja , Polosa Riccardo , Zuccarello Pietro , Ferrante Margherita , Raciti Giuseppina , Li Volti Giovanni
Published: October 2020

Prevalence studies of current smoking among hospitalized COVID-19 patients demonstrated an unexpectedly low prevalence of current smoking among patients with COVID-19. The aim of the present proposal was to evaluate the effect of smoke from cigarettes on ACE-2 in bronchial epithelial cells. Normal bronchial epithelial cells (H292) were exposed to smoke by an air-liquid-interface (ALI) system and ACE-2 membrane protein expression was evaluated after 24 hours from exposure. Our transcriptomics data analysis showed a significant selective reduction of membrane ACE-2 expression (about 25%) following smoking exposure. Interestingly, we observed a positive direct correlation between ACE-2 reduction and nicotine delivery. Furthermore, by stratifying GSE52237 as a function of ACE-2 gene expression levels, we highlighted 1012 genes related to ACE-2 in smokers and 855 in non-smokers. Furthermore, we showed that 161 genes involved in the endocytosis process were highlighted using the online pathway tool KEGG. Finally, 11 genes were in common between the ACE-2 pathway in smokers and the genes regulated during endocytosis, while 12 genes with non-smokers. Interestingly, six in non-smokers and four genes in smokers were closely involved during the viral internalization process. Our data may offer a pharmaceutical role of nicotine as potential treatment option in COVID-19.
Biased Continuous-Time Random Walks with Mittag-Leffler Jumps
Authors: Michelitsch Thomas M. , Polito Federico , Riascos Alejandro P.
Published: October 2020

We construct admissible circulant Laplacian matrix functions as generators for strictly increasing random walks on the integer line. These Laplacian matrix functions refer to a certain class of Bernstein functions. The approach has connections with biased walks on digraphs. Within this framework, we introduce a space-time generalization of the Poisson process as a strictly increasing walk with discrete Mittag-Leffler jumps subordinated to a (continuous-time) fractional Poisson process. We call this process ‘space-time Mittag-Leffler process’. We derive explicit formulae for the state probabilities which solve a Cauchy problem with a Kolmogorov-Feller (forward) difference-differential equation of general fractional type. We analyze a “well-scaled” diffusion limit and obtain a Cauchy problem with a space-time convolution equation involving Mittag-Leffler densities. We deduce in this limit the ‘state density kernel’ solving this Cauchy problem. It turns out that the diffusion limit exhibits connections to Prabhakar general fractional calculus. We also analyze in this way a generalization of the space-time fractional Mittag-Leffler process. The approach of construction of good Laplacian generator functions has a large potential in applications of space-time generalizations of the Poisson process and in the field of continuous-time random walks on digraphs.