bluuebunny/crossref_metadata_2025 huggingface dataset:
The use of guide templates in the surgical treatment of preschool children with congenital scoliosis of thoracic and lumbar localization
Authors: Kokushin Dmitry N. , Vissarionov Sergei V. , Baindurashvili Alexey G. , Ovechkina Alla V. , Khusainov Nikita O. , Poznovich Mahmud S. , Zaletina Anna V.
Published: October 2020

Background. The use of transpedicular screws as support elements from the standpoint of biomechanics is preferable as compared to that of laminar fixation, albeit the former carries the risk of various complications (such as malposition screws, damage to the Dura mater, spinal cord, and major blood vessels) caused by structural changes in the vertebrae under the background of their defects, with small size of roots arcs vertebrae in young children. Thus, the issue of ensuring safe and correct installation of transpedicular screws in the surgical treatment of children with congenital scoliosis remains relevant.
Aim. We aimed to evaluate the correctness of the position of the transpedicular screws installed in the vertebral bodies in preschool children with congenital scoliosis of thoracic and lumbar localization using guide templates (SHN).
Materials and methods. We conducted a prospective analysis of the outcomes of surgical treatment of 30 patients with congenital scoliosis against the background of impaired formation of the vertebrae of the thoracic and lumbar spine. The patients included 12 boys and 18 girls of age: 1 year 8 months to 6 years 5 months (average: 3 years 4 months). Based on the computed tomography of the spine, performed postoperatively, the correctness of the position of the installed elements of the corrective multi-support metal structure was evaluated. The correctness of the position of the installed transpedicular support elements was evaluated based on the scale described by S.D. Gertzbein and co-authors (1990).
Results. The total number of implanted transpedicular screws sets was 96 (100% of the planned transpedicular screws set), and 48 SHN were used for transpedicular screws installation. The correct position of installed screws by degree of displacement revealed Grade 0 93.7% (90 screws), Grade I 4.2% (4 screws), Grade II 2.1% (2 screws), Grade III 0%. The number of screws with a Grade 0 + Grade I offset was 94 (97.9%).
Conclusion. The results obtained with the use of SHN among preschool children with congenital scoliosis of thoracic and lumbar localization revealed high accuracy and correctness of transpedicular screws installation (93.7%) with the use of this type of navigation in clinical practice. The use of SHN for installing transpedicular screws in the surgical treatment of congenital spinal deformities in young patients allows for the selection of the optimal size and correct position of the transpedicular support elements in the vertebrae to be instrumented.
Patients with a previous stroke attack who suffer from blood pressure control or regulation in Saudi Arabia
Authors: Hassan Khaled M. , Alqahtani Abdulwahab A. , Alotaibi Mohammed W. , Alahmari Abdulaziz A. , Alanazi Salwa M. , Al-Hussain Ghadah O. , Alnahdi Mesedah A. , Alharbi Faisal A. , Alshehri Ahmed A. , Aloraini Ziyad A. , Almutairi Sulaiman H. , Baw Bara A. , Alamer Bader A. , Alsassiri Khaled M. , Alfaraj Maha A. , Alotaibi Abdulmohsen M.
Published: October 2020

This study aims to discuss the blood pressure (BP) control with patients who suffer from a previous stroke or transient ischemic attack (TIA) in Saudi Arabia, to discuss the risk factors and to examine antihypertensive medication-dosing. The most recent office-based BP reading was compared with the BP <140/90 mmHg objective of the National Institute for Health and Care Excellence (NICE) (NG136) and European Society of Hypertension or European Society of Cardiology (ESH/ESC 2013) study participants. By benchmarking prescription doses for each drug with the World Health Organization-defined daily dosing (WHO-DDD) guidelines, optimal anti-hypertensive medication dosing was calculated. In 10 procedures, we found 328 patients with a prior stroke or TIA. When assessed against the ESH/ESC and NICE guidelines (63.1 percent, n=207), blood pressure was controlled in nearly two-thirds of patients. Of those with BP 140/90 (n=116), just under half (n=44, 47.3 percent) were sufficiently dosed relative to the WHO-DDD guidelines in all anti-hypertensive medicines. To conclude, in at least one-third of patients with a prior stroke or TIA, blood pressure regulation remains sub-optimal. Half of these patients were able to respond to an elevation of the anti-hypertensive dose. Further analysis is needed to see how best to control blood pressure in primary care patients with a previous stroke or TIA, since the majority of hypertension consultations take place in this setting.
Aplicaciones de las redes neuronales y el deep learning a la ingeniería biomédica
Authors: Sarmiento-Ramos José Luis
Published: October 2020

Hoy en día, las redes neuronales artificiales y el deep learning, son dos de las herramientas más poderosas del aprendizaje de máquina, que tienen por objetivo desarrollar sistemas que aprenden automáticamente, reconocen patrones, predicen comportamientos y generalizan información a partir de conjuntos de datos. Estasdos herramientas se han convertido en un potencial campo de investigación con aplicaciones a la ingeniería, no siendo la ingeniería biomédica la excepción. En este artículo se presenta una revisión actualizada de las principales aplicaciones de las redes neuronales y el deep learning a la ingeniería biomédica en las ramas de la ómica, la imagenología, las interfaces cerebro-máquina y hombre-máquina, y la gestión y administración de la salud pública; ramas que se extienden desde el estudio de procesos a nivel molecular, hasta procesos que involucran grandes poblaciones.Palabras clave:aprendizaje de máquina; inteligencia artificial; reconocimiento de patrones; ómica; bioinformática; biomedicina; imagenología; interfaces cerebro-máquina; interfaces hombre-máquina;salud pública.
Estimación de parámetros entransformadores monofásicos empleandomedidas de tensión y corriente
Authors: Bocanegra Sara Yulieth , Montoya Oscar Danilo , Molina-Cabrera Alexander
Published: October 2020

En este artículo se presenta una metodología para la estimación de parámetros en transformadores de distribuciónconsiderando medidas de tensión y corriente mediante un modelo matemático de programación no lineal (PNL).Este modelo de programación es desarrollado a través de la aplicación de las leyes de Kirchhoff al modelo del circuitoequivalente del transformador. Para resolver el modelo de PNL resultante se emplea el sistema de modelado algebraicogeneral conocido como GAMS. La metodología de optimización propuesta se desarrolla a manera de tutorial conun ejemplo de implementación el cual corresponde a un transformador monofásico de 20 kVA y una relación detransformación de 8000/240 V. Los resultados numéricos muestran que la estimación paramétrica en transformadoresmediante el modelo de PNL propuesto representa adecuadamente el comportamiento eléctrico de estos dispositivosen relación consu funcionamiento para diferentes escenarios de carga a los que se encuentren sometidos. Todas lassimulaciones fueron realizadas con la versión 25.1.3 de GAMS licenciado por la Universidad Tecnológica de Bolívar
Tendencias metodológicas en la evaluación del grado de contaminación y de riesgos por metales pesados presentes en sedimentos viales urbanos
Authors: Goya-Heredia Angélica Vanessa , Zafra-Mejía Carlos Alfonso , Rodríguez-Miranda Juan Pablo
Published: October 2020

El objetivo principal de este artículo es analizar las tendencias a nivel mundial en el uso de métodos para evaluar la contaminación por metales pesados (MP) asociados con el sedimento vial (SV) urbano. Se realizó una revisión sistemática de literatura entre los años 1995-2018. Se empleó un índice de frecuencia de citación con el fin de establecer un orden de importancia para las categorías detectadas. Los resultados muestran el siguiente ordende importancia para las categorías detectadas: enriquecimiento metálico (87,0%) > riesgo sobre la salud (55,8%) > riesgo ambiental (35,1%). Los métodos de preferencia mundial para cada una de las categorías son el índice de geo-acumulación (55,8%), cociente de riesgo no cancerígeno (50,6%) e índice de riesgo ecológico (31,2%), respectivamente. Estas preferencias están posiblemente condicionadas por la existencia local de información de concentraciones de fondo de MP, dosis diarias de inhalación de partículas vinculadas a SV, factores de toxicidad por ingesta/contacto dérmico con MP, y factores de emisión de partículas de SV. Los MP de mayor relevancia son Pb (97,4%), Cu (93,5%) y Zn (89,6%). No obstante, también se destacan Cr-Cd-As por su elevado riesgo ecológico y cancerígeno.
Evaluation of the drinking water treatment system (STAP) San Fernando –Los Patios urbanization, Colombia. Efficiency and quality
Authors: Castrillón-Jaimes Yusbely Cecilia , Acevedo-Peñaloza Carlos Humberto , Rojas-Suárez Jhan Piero
Published: October 2020

The quality of water for human consumption in the municipality of Los Patios in Colombia, depends 60% of the treatment systems for drinking water (STAP) independent, these are adapted according to the population that conforms in 2014 and own resources. Urbanization San Fernando carries out the treatment in an efficient way guaranteeing the quality of water for human consumption, therefore, the field study is based on a quantitative approach and a method that describes the results of the analysis of the samples taken at the entrance and exit of the STAP, to evaluate the efficiency and quality of the system the sample is characterized from the analysis of the physical-chemical and microbiological parameters at the entrance and exit of the system in the Water Laboratory of the Universidad Francisco de Paula de Santander. The physical and microbiological results identify the efficiency of the system and the operator, indicating the quality of the water by the values in the parameters measured according to Decree 1575 of 2007 and 1525 of 2007 by the Ministry of Social Protection in Colombia. The chemical analyses detected a high percentage of calcium hardness in the sample at the system outlet, which is reportedto the directors of the urbanization. In accordance with this, the relevant controls and monitoring are carried out in the process for the purification and consumption of water, without neglecting the habits of water storage by the community in each home.
Los efectos de graficar un indicador bursátil en un gráfico de control tradicional 푿̅y S: perspectivas, análisis de la operatividad del indicador y causas asignablespara tomar decisiones en el mercado
Authors: Neira-Rueda Javier Orlando , Carrión-García Andrés , Romero-Arenis Wilman
Published: October 2020

El presente artículo estructura indicadores bursátiles de tal forma que puedan ser analizados por medio de un gráfico tradicional de control de procesos Shewhart. Un gráfico muy utilizado en la industria para controlar variables altamente correlacionadas con procesos. Estos gráficos tienen el fin de asignar causas a posibles cambios en el comportamiento normal de los datos. De igual forma, cualquier intento por obtener puntos de vista estadísticos que ayuden a tomar decisiones de inversión con bajo riesgo es bienvenido, ya que un error en la toma de decisiones en el mercado bursátil puedeconllevar a una gran pérdida económica para los inversionistas. En el presente documento se muestran los resultados de lo analizado y se relacionan las recomendaciones para construir un gráfico de control Shewhart X y S con indicadores bursátiles, con el fin de definir sus prestaciones.
Metodología para el diseño computacional de andamios a ser utilizados en reparación ósea
Authors: Reboledo-Grau Diana , Martínez-Bordes Gabriela
Published: October 2020

Los andamios son unas estructuraspersonalizadas, cuyo diseño influye en elcrecimiento celular para la reparación del tejido. Sin embargo, aún se encuentran en constante estudio para lograr todos los requerimientos biológicos. En este trabajo se propone una metodología y se evalúanuméricamente, utilizando el método de los elementos finitos, el comportamiento devarios diseños de andamio, Se evalúan diferentes geometrías variando el material (Titanio-Aluminio-Vanadio (Ti6Al4V) y ácido L poliláctico (PLLA) y tamaño del poro. Posteriormente, después de seleccionar los diseños más acordes con la rigidez de la estructura ósea donde se implantarán, se evaluó la viabilidad delos andamios en un ensamble andamio-hueso-placa endos etapasde sanación. La inicial, cuando no hay hueso dentro del andamio, y la final de reparación, cuando el andamio está lleno de material óseo. Para su evaluación, se propuso una geometría de andamio equivalente utilizando técnicas básicas de homogenización. Se observóque el hueso dentro del andamio de Ti6Al4V, aumenta significativamente las propiedades mecánicas de la zona, pudiendo generarse importantes zonas de concentración de esfuerzo. Esto pone en evidencia la conveniencia de que el andamio sea biodegradable para evitar lesiones posteriores al paciente, debido a la diferencia de rigidez a lo largo del fémur.En esta evaluación se tomaron en cuenta solamente dos materiales biocompatibles como lo son elTi6Al4V yelácido L poliláctico (PLLA)(biodegradable).La selección de estos obedeció a la amplia información que existe en la literatura sobre esta afirmación más que a un estudio riguroso de las propiedades de estos.
SOFTWARE DEVELOPMENT FOR ESTIMATION OF LOW FREQUENCY SOUND PROPAGATION IN GAS GUIDES OF POWER PLANTS TAKING TO ACCOUNT ACTIVE SOUND SOURCES
Authors: Vasilyev A V
Published: October 2020

This paper is devoted to the problems of modelling and calculation of propagation of low frequency sound in gas guides of power plants taking to account active sound sources. The structure of software for prediction and calculation of low-frequency sound propagation in gas guides have described. Software uses four-pole method and takes to account radiation from additional (active) sound course. By using software it is possible to estimate sound source parameters to provide efficient sound attenuation. Examples of software application to calculation of intake and exhaust noise of internal combustion engine are described. The results of calculations show the possibilities of four-pole method software using to design acoustically the parameters of gas guides and mufflers for the different fields of applications.
THE INFLUENCE OF DIPOLE-DIPOLE INTERACTION ON THE SUDDEN DEATH OF ENTANGLEMENT OF TWO ATOMS WITH DEGENERATE TWO-PHOTON TRANSITIONS
Authors: Bashkirov E.K. , Evdokimova A.M. , Mastyugin M.S.
Published: October 2020

The influence of dipole-dipole interaction on the entanglement between twoatoms with different initial W-like states in Tavis-Cummings model with degenerate two-photon transitions has been investigated. The results show that theentanglement between two atoms can be increased by means of dipole-dipoleinteraction and for some initial states the sudden death effect can be weakened.
QUANTUM CHEMICAL MODELING OF THE MECHANISM OF ACTION OF INHIBITORS OF CORROSION AND HYDROGEN ABSORPTION OF STEEL AT PRESENCE OF SRB (BASED ON 1,4-QUINONE DERIVATIVES)
Authors: Beloglazov G.S. , Teryusheva S.A. , Beloglazov S.M.
Published: October 2020

The results of quantum chemical computations of isolated molecules(derivatives of 1,4-quinone) performed by using restricted Hartree-Fock (RHF)method with the aid of Gaussian94 software in 3-21G basis set, are reported.Correlation coefficients between quantum chemical characteristics (QCC) of themolecules of inhibitors of corrosion and hydrogen absorption of steel St3 andexperimentally measured efficiencies of such species as the inhibitors in SRBcontaining media, have been calculated.
ALKALINE EARTH METAL AZIDES. THE WAYS OF OBTAINING. PHYSICO-CHEMICAL PROPERTIES. PERSPECTIVES OF APPLICATION
Authors: Mokrov A.A. , Kukushkin I.K. , Bykonya E.M. , Purygin P.P.
Published: October 2020

Physical-chemical properties of alkaline earth metal azides are considered inthis article in detail. Possibilities of wide use of the substances is shown, familiarways of obtaining it are examined.
GASTRIN-REALISING PEPTIDE - POTENTIAL PARTICIPANT INVOLVED IN THE BULBAR MECHANISMS OF THE REGULATION OF BREATHING
Authors: Aliev A.A.
Published: October 2020

In the article we review the role of gastrin-realising peptide in the respiratorycontrol at the level of the medulla. The information concerning the distributionof this neuropeptide and its receptors expression in the functionally-specific regions of the respiratory center is presented. We also review some data aboutrespiratory effects of related peptide bombesin. The effects of gastrin-realisingpeptide microinjections into the nucleus tractus solitarii on the main parametersof breathing pattern and the activity of inspiratory muscles are presented.
NEW STRAIN ESCHERICHIA COLI, DISCOVERED IN DETERGENT FOR DISHES AMWAY DISH DROPS
Authors: Kostina D.A. , Klenova N.A.
Published: October 2020

no past-life, the bacterium that causes flatulence was discovered, which led toinflated bottle. Isolation of bacteria in pure culture, seeding on Kessler ambience, Gram staining and microscopic analysis showed its belonging to a groupof enterobacteria Escherichia coli. The nature of bacterial growth in mediaHiss and other physiological and biochemical characteristics is studied. The ability of enterobacteria to live in a substratum containing a minimum of organiccompounds in the presence of nonionic and anionic surfactants, suggests thepossibility of the emergence of strains with is dangerous to human health indetergents used to clean utensils.
THE EVOLUTIONARY EQUATION FOR ONE-DIMENSIONAL SHEAR WAVES OF A RUPTURE OF STRAINS
Authors: Ivanova Y.E. , Ragozina V.E.
Published: October 2020

The problem about formation and the subsequent distribution of the one-dimensional shear shock wave in nonlinear elastic incompressible isotropic half-space is solved. Application of a method of the spliced asymptotic expansions infront field of a shock wave leads to the evolutionary quasilinear wave equationwhich is distinct from the equations of Hopf, characteristic for volume shockwaves. Some methods of build-up of solutions for the evolutionary equations ofthe shift waves, allowing to consider the manifold time functions in the capacityof boundary conditions for a field of transitions, are offered.
1,4-BENZOQUINONE DERIVATIVES AS INHIBITORS OF CORROSION AND HYDROGEN ABSORPTION OF STEEL AT PRESENCE OF SRB
Authors: Teryusheva S.A. , Beloglazov G.S. , Beloglazov S.M.
Published: October 2020

The results of study of the derivatives of 1,4-hydroquinone as inhibitors ofmicrobiological corrosion and hydrogen absorption of mild steel in a water-saltmedia supporting the development of sulphate reducing bacteria (SRB) andclose by its composition to the sea water containing biogenic hydrogen sulphide.Content of H2S, bacterial titre in the corrosive meas well as its pH, Eh andpotential of steel '; were determined together with the quantity of hydrogenabsorbed by surface layers of steel. Protective efficiency of the best studiedspecies from corrosion reaches 65...84 %, as for their action against hydrogenabsorption by steel specimen 60...72 %. The decrease of the number of SRBcells due to the action of the derivatives of 1,4-hydroquinone was found to be48...84 %, while the suppression degree 29...57 % (at the concentration of5 mMol/L).Key words:
THE COMPELLED AXISYMMETRIC BENDING FLUCTUATIONS OF THICK ROUND RIGID PLATE
Authors: Shlyakhin D.A.
Published: October 2020

The new closed solution of axially symmetric nonstationary problem of the theory of elasticity for thick round anisotropic plate with rigid of its external radial surface is constructed. Calculated relations are obtained by method of expansion in eigen vector-functions in the form of structural algorithm of finite transformations. Numerical results allow to define the natural-vibration frequency, and also the stress-strain state of the testing element.
HEAVY METALS IN SOIL COVER OF ULIANOVSK CITY CHILDREN PARK
Authors: Efremova O.A. , Prokopenko I.V. , Prokhorova N.V.
Published: October 2020

The features of heavy metals content and lateral distribution of heavy metals in soil cover of Ulianovsk city children park are described in the article. The possible sources of polymetallic territory pollution are discussed.
A MIXED PROBLEM WITH INTEGRAL CONDITION FOR A DEGENERATIVE EQUATION OF THE HYPERBOLIC TYPE
Authors: Kirichenko S.V.
Published: October 2020

In this article, the mixed problem for the hyperbolic degenerate equation with an integral condition is considered. The existence and uniqueness of a generalized solution are proved.
THE SYSTEM OF SHIFTS OF FUNCTIONS
Authors: Klimova E.S.
Published: October 2020

The system of shift of functions  in L2 (R) space is considered in this paper. We find conditions on real sequence g(x), which provide such properties of the system as to be a frame, Bessel system, complete sequence in the space L2 (R).
SYNCHRONIZATION OF FRACTIONAL VAN-DER-POL OSCILLATOR
Authors: Zaitsev V.V. , Karlov A.V. , Stulov I.V.
Published: October 2020

A model of self-oscillating system with a diﬀerential equation of motion of fractional order under the action of external harmonic signal is proposed. Solutions of equation of motion which correspond to the regime of steady-state synchronized oscillations and the regime of beats near the synchronization band are obtained in the quasiharmonic approximation. The amplitude frequency and phase-frequency characteristics of synchronization of fractional Van-der-Pol oscillator are analyzed. An analogy between the generator with a fractional feedback circuit and the generator with delayed feedback is established.
SORPTION PROPERTIES OF THE MIXED STATIONARY PHASE ”POLYDIMETHYLSILOXANE-/beta-CYCLODEXTRIN” IN GAS CHROMATOGRAPHY
Authors: Platonov V.I. , Kuraeva J.G. , Onuchak L.A. , Kazurov D.M. , Goncharova I.S.
Published: October 2020

Sorption and selective properties of the mixed stationary phase based on polydimethylsiloxane and methylated-beta-cyclodextrin were studied by gas chromatographic method in the temperature range 60–180С. It is also established that introduction of macrocyclic adding in polymeric immovable phase results in increasing sorption of organic compounds of diﬀerent classes (apart from n-alkanes C6-C10 and cyclogegsan) and showing of enantioselectivity, more pronounced for cyclic compounds with polar substituents. A greater role of entropy factors acting in the mixed polymer phase on the sorption of sorbates redistribution
THE INVESTIGATION OF POSTPYROGENIC PROCESSES IN NATURAL AND ANTHROPOGENIC PINE FORESTS OF SAMARA REGION
Authors: Antypova A.V. , Prokhorova N.V.
Published: October 2020

The comparative analysis of postpyrogenic processes development in natural pine forests in Zhigulevsky nature reserve and anthropogenic pine forests in Krasnosamarsky forest is given in the article.
COMPARATIVE ANALYSIS OF SOME BEHAVIORAL REACTIONS BY CHILDREN AND CHIMPANZEE IN THE PROCESS OF ACHIVEMENT THE GOAL WITH DIFFERENT SUBJECTIVE VALUE
Authors: Kuznetsova T.G. , Gorbacheva M.V.
Published: October 2020

The behavior of preschool children and chimpanzee was probed in the process of achievement the goal, approached with different speed and possessing different value. It is detected that on the force of aspiring to possessing a purpose not only speed of movement of object, or time which it will be attained with, but also its subjective value is inﬂuenced. Decline of speed of approaching object notwithstanding the dependency upon a kind of test subjects invariably led to lowering of productivity of instrumental reactions, diminishing of active time of tracking after the approached object, to the change of tactics of management by an experimental device.
HEART RATE VARIABILITY OF STUDENTS WITH DIFFERENT PROFILES OF MOTOR DOMINATION DURING EXAM
Authors: Lukina A.I.
Published: October 2020

It is established hat changing of parameters of student’s electrocardiogram during the exam are shown by shortening of the intervals RR, QT, PQ, and the complex QRS, thus expressiveness of reactions dominates in sample of lefthanders and ambidexters. The values of wave parameters of heart rate variability, including spectral power of heart rate ﬂuctuations in diﬀerent frequency ranges, increase in left-handers, while ambidexterity and right handed down. The values of statistical indices of HRV, including SDNN, RMSSD and mode cardio intervals in students during the exam are reduced, and also to a greater extent, and ambidexterity for lefties. These changes corresponded to increasing trend of the index and the activity coeﬃcient Baevsky sympathetic nervous system, indicating a greater intensity of regulatory mechanisms in individuals with left proﬁle of motor domination.
CONCERNING THE ROLE OF XENOBIOTIC STRUCTURE IN THE BIOLOGICAL ANSWER (ON THE EXAMPLE OF BENZOTRIAZOLE)
Authors: Selezneva E.S. , Valieva E.A. , Tengayev E.I. , Belousova Z.P.
Published: October 2020

The toxicity and cytogenetic activity for Allium ﬁstulosum were investigated for six imidazole derivates 4-(1-Н-benzotriazole-1-ilmetyl)phenol, 1-benzylbenzotriazole, 1-[4-(benzyloxy)benzyl]-1H-benzotriazol, 1-[2-(benzyloxy)benzyl]-1H-benzotriazole, 2-(1-Н-benzotriazole-1-ilmetyl)phenol, 1-[4-(3-fenolpropoxy)benzyl]-1-Нbenzotriazole. The substances with OH- and benzyl groups in para-position were more toxic. Depending on their molecular structure the substances blocked the proliferative activity on diﬀerent mitosis stages. All the substances demonstrated mutagenic activity. The role of molecular structure in biological answer development is discussed in the article.
ABOUT A NON-LINEAR TASK ON EIGENVALUES INCURRING FROM THE ANALYSIS OF TENSIONS AT THE FATIGUE CRACK TIP
Authors: Adylina E.M. , Igonin S.A. , Stepanova L.V.
Published: October 2020

An analytical solution of the nonlinear eigenvalue problem arising from the fatigue crack growth problem in a damaged medium in coupled formulation is obtained. The perturbation technique is used. The method allows to ﬁnd the analytical dependence of eigenvalue on parameters of the kinetic equation of the damage evolution law.
ON ANAPOLE FORMFACTOR OF THE PROTON
Authors: Krutov A.F. , Kudinov M.Yu.
Published: October 2020

In this paper we discuss the possibility of existence of anapole formfactor of the proton. In the framework of hypothesis of violation of discrete symmetries in electromagnetic processes involving composite systems with strong interactions we discuss the results of modern experiments on elastic ep-scattering and recent results on the measurement of radius of proton. In the approach of Poincare invariant quantum mechanics the analysis of experiments on elastic ep-scattering is made and electromagnetic and anapole formfactors of proton are calculated
MATHEMATICAL MODELLING OF OPTIMUM CULTIVATION OF BIOLOGICAL CULTURE
Authors: Razzhevaikin V.N. , Yusufov A.T.
Published: October 2020

Questions of optimum control over the process of organization of cultivation of biological culture in the conditions of two-regime cultivates are studied. Ways of acceptance of optimum decisions concerning conveyance of production made in the conditions of one of the ways in the conditions of the second, based on estimations of observable variables are speciﬁed.
THE EFFECTS OF GASTRIN-RELEASING PEPTIDE MICROINJECTIONS INTO THE PRE-BOTZINGER COMPLEX ON THE RESPIRATORY PARAMETERS OF RATS
Authors: Aliev A.A. , Inyushkin A.N.
Published: October 2020

In the article, the results of investigation of the respiratory eﬀects of gastrinreleasing peptide microjections into the pre-Botzinger complex are presented. It was found that microinjections of neuropeptide induced an increase in respiratory rate, tidal volume, amplitude of diaphragm and external intercostal muscles bursting activity. The statistically signiﬁcant respiratory responses observed when 10^-5 M of GRP was used, while 10^-8 M of GRP appeared to be sub-threshold and didn’t alter the breathing pattern and activity of inspiratory muscles. The suggested mechanisms of action of GRP at the level of pre-Botzinger complex are discussed.
NECESSARY AND SUFFICIENT CONDITIONS FOR PRIME PARSEVAL FRAMES
Authors: Ryabtsov I.S.
Published: October 2020

In the article we consider two disjoint classes of frames, prime and composite Parseval frames, the union of which forms a set of Parseval frames. The main goal is to obtain a description of these two classes. In this article we prove necessary and suﬃcient conditions for the frame to be a prime Parseval frame.
CONCERNING THE FEATURES OF INTERSPECIES DIVERSITY IN THE POPULATION GROUPS OF MILK THISTLE
Authors: Demenina L.G.
Published: October 2020

The data on some phenotypic features of 40 population groups of Silybum marianum Gaertn, created on the base of seeds with different geographic origin during the field investigations in 1989-2006 in Samara region are given in the article. The problem of possible connection between morphological and quantitative, especially productivity-connected, parameters is discussed.
THE INFLUENCE OF ALLOGENIC HYDROXYAPATITE ON KATALASE ACTIVITY, DIEN CONJUGATS AND MALONE DIALDEHYDE IN RATS
Authors: Pisareva E.V. , Vlasov M.Yu. , Orlova E.V.
Published: October 2020

The antioxidant system activity in liver and muscle of rat after bilateral ovaryectomy and allogenic hydroxyapatite injections was investigated. The decrease of antioxidant system activity in rats with removed ovaries was found. Injections of allogenic hydroxyapatite leads to normalization of antioxidant system activity.
ON CERTAIN INITIAL-BOUNDARY VALUE PROBLEMS WITH NONLINEAL BOUNDARY CONDITIONS FOR HYPERBOLIC EQUATION
Authors: Beilina N.V.
Published: October 2020

In this paper, we study the solvability of a problem for a nonlinear hyperbolic equation with a nonlinear boundary conditions. The unique solvability is proved.
CRUSTACEA OF THE POND OF TOMASHEV KOLOK IN THE SAMARA CITY
Authors: Kireev A.V. , Gerasimov Yu.L.
Published: October 2020

The species composition and seasonal dynamics of quantity of Crustacean populations in small urban pond is studied. The list of 15 Crustacean species is presented. Daphnia longispina, Ceriodaphnia reticulata and Cyclops copepodits dominate in the first half of summer to July, Chydorus sphaericus dominate in August and September.
DESIGN OF AUTOMATED SOLUTION CHECK SYSTEM FOR PROGRAMMING CONTESTS
Authors: Rusakova M.S. , Meerson R.I.
Published: October 2020

The paper deals with design of automated solution check system for regional programming contests. The requirements and constraints for such systems are found in the work. Database for contest tasks is designed. The system is constructed using object modeling and patterns concept. Unified modeling language is used for system design. UML-diagrams are shown for project classes as well as diagram for solution check process.
THE MODEL OF SCATTERING OF NEUTRAL QUANTUM PARTICLE ON A NON-STATIONARY CURVE
Authors: Vedutenko E.A. , Talalov S.V.
Published: October 2020

The model describing the scattering of neutral quantum massive particle on the evolving curve has been constructed by methods of non-relativistic scattering theory. The first "dynamical" correction for scattering wave function has been calculated for the case of small non-stationary perturbation of straight line.
ON THE THEORY OF MIGRATION OF METHANE BUBBLES IN THE CONDITION OF HYDRATE FORMATION
Authors: Rusinov A.A. , Chiglintseva A.S. , Shagapov V.Sh.
Published: October 2020

The paper a theoretical model and migration of methane bubbles in the hydrate formation conditions in the upward flow of water in a vertical channel is suggested and built. We obtain critical values of mass flow rates of gas and water, providing the necessary conditions for the full transition to the reactor, the gas in the gas hydrate. It is found out that at migration of gas bubbles in the reactor, two possible modes of the process of hydrate depending on the initial mass flow rate of water: gas bubbles or completely converted into hydrated state as separate inclusions or partially, forming bubbles with a hydrated shell. Analysis of influence of size of gas bubbles on the process of hydrate formation).
ON THE THEORY OF THE BULK FOAM-FORMATION OF GAS-SATURATED LIQUID DURING THE DEPRESSURIZING OF CONTAINER
Authors: Shagapov V.Sh. , Yalaev A.V.
Published: October 2020

The problem of depressurizing in the gas-saturated liquid is considered. It is found out that the smaller is the initial radius of original germ of gas, the more pressure drops as compared with equilibrium pressure. The solution of the system that describes the transition from the metastable state to the equilibrium two-phase state is found. It is found that the characteristic time of exit from the metastable state depends on the initial number of gas germ.
EPHEDRINE AND VERAPAMYLE DENSITOMETRIC ANALYSIS IN JUDICIAL-CHEMICAL EXAMINATION
Authors: Kormishin V.A. , Voronin A.V. , Shatalaev I.F.
Published: October 2020

In this article the analytical characteristics of method of analysis of ephedrine and verapamyle with application of thin-layer chromatography and densitometry is considered. Detection limit of ephedrine and verapamyle is 10,0 /tg/ml in a sample. The possibility of ephedrine and verapamyle quantitative determination in model samples in the range of 10,0-250,0 /tg/ml concentration is indicated.
SEASONAL DYNAMICS OF MICOBIOTA'S LEAF AREA OF TREES IN URBAN TERRITORY
Authors: Ovchinnikova T.A. , Krems E.V. , Korchikov E.S.
Published: October 2020

This article deals with seasonal dynamics of micobiota's leaf area of Acer platanoides and Tilia cordata in Samara Park "Zagorodny". The correlations of seasonal dynamics of micobiota's of leaf area of trees with urban aeromicoflora and physiological characteristics of plants were considered in the article.
ON A BOUNDARY VALUE PROBLEM WITH NONLOCAL IN TIME CONDITIONS FOR A ONE-DIMENSIONAL HYPERBOLIC EQUATION
Authors: Kirichenko S.V.
Published: October 2020

In this article, the boundary value problem for hyperbolic equation with nonlocal initial data in integral form is considered. Existence and uniqueness of generalized solution are proved.
ON CHARACTERISTIC PROBLEMS FOR ONE HYPERBOLIC SYSTEM IN THREE-DIMENSIONAL SPACE
Authors: Sozontova E.A.
Published: October 2020

We consider characteristic problems for a hyperbolic system with three independent variables. Using the Riemann method and theory of integral equations we obtain conditions of one-valued solvability for this problems.
GENERALIZED Delta-DERIVATIONS
Authors: Kaygorodov I.B.
Published: October 2020

In the paper the questions devoted to generalization of notion of δ-derivation on non-associative algebras. Apart from that new examples of non-trivial δ-derivations for Lie algebras were constructed.
PRODUCTION OF PEPTIDE COMPOUNDS IN HUMAN ERYTHROCYTES AT HYPERGLYCEMIA AND THEIR EFFECT ON THE PROTEOLYTIC ACTIVITY OF LEUKOCYTE
Authors: Vasilieva S.G. , Mochalova E.P. , Isaeva A.V. , Klenova N.A.
Published: October 2020

An increase in the production of peptide compounds in human erythrocytes incubated by them in conditions of hyperglycemia (10 mmol/L) compared with normoglycemia (5 mmol/L) is found. At that the spectrum of peptide compounds changes, since a change of their action on the activity of cathepsin D leukocytes: in normoglycemia allocated erythrocytes peptides increase the activity of cathepsin D with calcium deficiency in the environment, and in conditions of hyperglycemia, on the contrary inhibit the enzyme in the presence of calcium ions.
SIMULATION OF MORPHOLOGICAL AND FUNCTIONAL PROPERTIES OF ERYTHROCYTE MEMBRANE
Authors: Nagornov Yu.S. , Zhilyaev I.V.
Published: October 2020

The paper presents a model for the calculation of morphofunctional erythrocyte properties. The model represents the erythrocyte as a homogeneous elastic body with elastic depending on the distance to the center of symmetry of the erythrocyte. The data for modeling were taken from the experimental study, which were used by atomic force microscopy (measuring the elasticity of the membrane of erythrocytes and morphology) and the Coulter method. In the developed model, the elasticity of the membrane to change depending on the distance to the center within 1-1,6 kPa. The calculation of the elastic properties is made by two methods - finite element analysis and optimization methods. In the model the dependence of erythrocyte morphology on the membrane pressure was obtained. Pressure difference across the erythrocyte membrane varied in the range of 0,5-2 kPa.
INVESTIGATION OF RIGID INTEGRAL AND DIFFERENTIAL PROBLEM OF IEF BY TANGENT METHOD
Authors: Sakharova L.V.
Published: October 2020

The article is devoted to the problem of development by methods of approximate solution of rigid integral and differential problem on the example of modeling of isoelectric focusing (IEF) in the so-called "anomalous" regimes. Two new methods of asymptotic solution of problem with large parameter are represented: the geometric tangent method, based on approximation of solution by the system of broken lines with known geometric parameters.
A TIME-BLOCK ALGORITHM FOR FILTERGIN GEOLOCATION DATA
Authors: Beilina N.V.
Published: October 2020

In this paper a fast and simple algorithm for filtering geolocation data stream is considered.
ON ESTIMATE OF SIZE OF LOCALIZATION ZONE OF CARRIER OF SOLUTION TO A SEMILINEAR ELLIPTIC EQUATION
Authors: Pikulin S.V.
Published: October 2020

In this paper an estimate of size of localization zone of carrier of solution to the Dirichlet problem for a semilinear elliptic equation with measurable coefficients when the constant which limits the boundary conditions grows is defined more exactly.
ON PERFECT IMITATION RESISTANT CIPHERS OF SUBSTITUTION WITH UNBOUNDED KEY
Authors: Ratseev S.M.
Published: October 2020

Constructions of perfect imitation resistant ciphers are investigated in the work. It is well known that Vernam cipher with equiprobable gamma is a perfect cipher but it is not imitation resistant. It is because in Vernam cipher equipotent alphabets for plaintexts and ciphertexts are used. On the basis of A.Yu. Zubov's mathematical model of substitution cipher with unbounded key a model of perfect and imitation resistant cipher is constructed. At that reference cypher of the given model is perfect and reaches lower boundaries for success probability of imitation and substitution of communication.
ON CONSTRUCTION OF PROGRAM PSEUDO-RANDOM NUMBERS GENERATORS ON THE BASIS OF DYNAMIC SYSTEMS IN DETERMINISTIC CHAOS MODE
Authors: Gerasimov L.Yu.
Published: October 2020

In this work possibilities of program modelling of deterministic chaos mode are investigated. The research is carried out on the example of program model of Van-der-Pol oscillator. nist statistical tests suite is used for the evaluation of cryptographic properties of received generator of pseudo-random numbers.
INFLUENCE OF BRAKING OF LAYER ON THE CHARACTER OF THE PROCESS OF FLUID FILTRATION TO THE PRODUCTION WELLS
Authors: Karimov N.A.
Published: October 2020

A model of fluid filtration in the production well in the presence of craks of oil layer is built. These expansions can be both highly permeable and low-permeable and are characterized by the dimensionless ratio of conductivity of Fcd . For different values of Fcd the nature of filtering process is investigated; factor of productivity of the well is defined, an analytical expression for the skin factor, which reflects the influence of fractures on the productivity of the well is obtained.
OPERATOR METHOD FOR THE STUDY OF SMALL OSCILLATIONS IN SYSTEMS WITH AFTEREFFECT
Authors: Yumagulov M.G. , Yakshibaeva D.A.
Published: October 2020

This paper proposes operator method for the study of effect of appearence of small oscillations in systems with aftereffect.The method leads to new sufficient features of Andronov - Hopf bifurkation and allows to obtain approximate formulas for emerging decisions. As an application, we consider the problem of bifurcation points of Hutchinson - Wright equation.
PLASTICITY CONDITION CONNECTED WITH LEVEL LINES OF STRAIN STATE SURFACE FOR DIFFERENT DEFORMATION PROCESSES
Authors: Bukhanko A.A.
Published: October 2020

On the basis of the theory of plastic flow the peculiarities of application of plasticity condition connected with level lines of strain state surface for work-hardening incompressible rigid-plastic body at different stressed states realized in the context of plane and axisymmetric strain, plane stressed state are considered. Comparison of the proposed condition with plasticity conditions of Mises and Tresca is carried out on the basis of construction of yield curves in deviatoric plane and in planes corresponding to certain stressed states. It is shown that the proposed plasticity condition describes plastic flow on the edge of Tresca prism in conditions of axisymmetric deformation.
DECOMPOSITION OF MULTIRATE DYNAMIC SYSTEMS WITH SMALL DISSIPATION
Authors: Voropaeva N.V.
Published: October 2020

We consider singularly perturbed differential systems which describe the dynamics of manipulator with flexible joints in conditions of small dissipation. The existence of decoupling transformation which converts original multirate system to "block triangular" form with independent slow subsystem. Decoupling transformation is constructed as asymptotic series.
WATERFLOODING FRONT MOVING TASK IN DUAL PERIODICAL AREA: PISTON-LIKE DISPLACEMENT CASE
Authors: Astaﬁev V.I. , Kasatkin A.E.
Published: October 2020

Water-oil contact moving task has a high signiﬁcance in a waterﬂooding the- ory: it’s possible to improve oil recovering characteristics due to prediction of ﬂow features for both liquids - oil and water displaced it. There is the simplest mathematical pattern for conjoint oil-water ﬂow presenting: it is called ”versi- color” liquids model and it suggests making oil and water physically identical to simplify solving process for water-oil contact moving task. However, another pattern was used in research described in this paper: it is called pistonlike dis- placement model and it supposes that oil and water physical characteristics, for example, viscosities, may be diﬀerent. As for the oil-keeping reservoir pattern used in this research it was presented as homogeneous and inﬁnity, with ﬁxed thickness: furthermore its surface was covered by dual periodical lattice included production and injection wells in its cells.
ADVANCED SEMICONDUCTOR MATERIALS FOR THE DEVELOPMENT OF SUPER-HIGH FREQUENCIES AND NANOELECTRONICS
Authors: Komov A.N.
Published: October 2020

The results of application of semi-conductor converters on the basis of silicon carbide as a sensitive super-high frequency signals recorder. It was also noted that this material is prospective in the development of such areas as medicine, aerospace equipment, high-speed communication lines. The necessity of silicon carbide is increasing for its application in nanoelectronics.
BREATHING PARAMETERS IN STUDENTS WITH DIFFERENT TYPES OF BIORHYTHMS
Authors: Pavlenko S.I. , Vedyasova O.A.
Published: October 2020

With the use of technique of spirography it was shown that background values of breathing pattern parameters in students depend on their biorhythmological features and time of day. Most prominent changes in breathing during the day were found in students with ”intermediate” type of circadian activity, and less prominent - in students with late” type of activity. Signiﬁcant diﬀerences in values of respiratory frequency and in duration of respiratory phases between students with ”early” and ”intermediate” circadian activity were found, and also the diﬀerences in frequency and volume parameters of breathingbetween persons with ”intermediate” and ”late” activity in the morning and in the evening were registered. The diﬀerences in dynamics of respiratory parameters between persons with ”early” and ”late” types of activity were not signiﬁcant.
CODIMENSIONS GROWTH ESTIMATE OF THE VARIETIES OF DIALGEBRAS
Authors: Kolesnikov P.S. , Skoraya T.V.
Published: October 2020

The estimates connecting codimensions of varieties of non-associative algebras and corresponding varieties of dialgebras are obtained.
BASIS OF MULTILINEAR PART OF LEIBNIZ ALGEBRAS MANIFOLDS \overbrace{V_1}
Authors: Mishchenko S.P. , Pestova Y.R.
Published: October 2020

In the case of trivial characteristic of base ﬁeld, Leibniz algebras manifolds deﬁned by the identity x_1(x_2x_3)(x_4x_5)\equiv 0. has almost polynomial growth. In the work we continue research of this manifold, in particular, we construct bases of multilinear parts.
INVERSE PROBLEM WITH INTEGRAL OVERDETERMINATION CONDITION FOR A HYPERBOLIC EQUATION
Authors: Savenkova A.E.
Published: October 2020

In the paper, we study an inverse problem for a hyperbolic equation with integral overdetermination condition. The existence of a generalized solution is proved.
SCENARIO STUDY OF HIGGS BOSON IN THE FRAMEWORK NMSSM
Authors: Gurskaya A.V. , Dolgopolov M.V.
Published: October 2020

The questions of implementation in the theory of few Higgs bosons is consid- ered in this article. The corresponding hypothesis, which are the consequences of interpretation of results of LHC-experiments are experienced. Arguments in fa- vor of supersymmetric models are presented. Within the frameworks of NMSSM, estimates for the areas of variation of free parameters of the model are made, masses of Higgs bosons and neutralino, which is a candidate for dark matter particles are calculated. The values of these physical quantities collected in a speciﬁc set can be combined in the so-called scenario study of Higgs boson. Four scenarios in which there is an explanation of existing hypotheses are revealed.
ON THE UNCERTAINTY CONSTANTS FOR LINEAR COMBINATION OF SOME SUBSYSTEMS OF COHERENT STATES
Authors: Zhuravlev M.V. , Novikov I.Ya. , Ushakov S.N.
Published: October 2020

Uncertainty constants for coherent states obtain irreduciable value. But problems of interpolation and orthogonalization requires the original system of functions to move to linear combinations. Localization of linear combinations of coherent states subsystems which have been set on a rectangular lattice are studied. Formulas for uncertainty constants of these combinations in general case and at additional assumptions on coeﬃcients are received. Formulas for uncertainty constants of linear combinations of uniform shifts of Gauss function in general case and at additional assumptions on coeﬃcients are received. Results of numerical calculations are given for the interpolating scaling functions constructed for uniform shifts of Gauss function
METHOD FOR ESTIMATION OF VITALITY OF ALLOCATED INFORMATION SYSTEMS
Authors: Golub B.V. , Kuznetsov E.M. , Maximov R.V.
Published: October 2020

The method refers to the information security domain of information networks and can be used at a comparative estimation of information networks structures in order to determine their stability to the failures, caused by the impact of random or deliberate interferences. The destination is to improve results reliability of comparative estimation of information networks structures. To achieve technical result the dynamics of impact of random or deliberate interferences on information network nodes and also possibilities on communication recovery between transit nodes of information network are consider. For this purpose values of indexes of availability of information network nodes, time of achievement of critical ratio of "dangerous"and "safe"nodes for each variant of connection of subscribers, and also connectivity of adjacent "dangerous"nodes forming chains, eliminating exchange between subscribers are calculated.