bluuebunny/crossref_metadata_2025 huggingface dataset:
Biosynthesis of antibacterial silver nanoparticles using Astragalus verus Olivier
Authors: Askari Zahra , Vahabi Mohammad Reza , Allafchian Alireza , Mousavi Seyed Alireza , Jalali Seyed Amir Hossein
Published: October 2019

In this work, a green method was introduced for preparing silver nanoparticles (Ag NPs) using gum tragacanth extracted from Astragalus verus Olivier. The absence of a chemical reducing agent that may be toxic is an advantage of this method. The Ag NPs were prepared in different tragacanth concentrations, pH values, and temperatures. XRD, FT‐IR, and UV–vis spectroscopy analyses confirmed the structure of the synthesised Ag NPs. TEM and FESEM images showed that the prepared Ag NPs have spherical shapes. The FESEM images determined that a pH of 10 and a synthesis temperature of 50°C would be the optimal condition for preparing Ag NPs in this method. The change in concentration of tragacanth does not have much effect on the quality of Ag NPs. Obtained data from DLS revealed that the average diameter of Ag NPs is about 40 nm. The antibacterial activity of the prepared nanoparticles was evaluated against both Gram‐positive and Gram‐negative bacterial species. The results of the antibacterial tests showed that the prepared Ag NPs possess a desirable antibacterial activity.
Effect of length and thickness variations on the vibration of SWCNTs based on Flügge's shell model
Authors: Hussain Muzamal , Nawaz Naeem Muhammad , Taj Muhammad
Published: October 2019

This work aims to investigate the vibration of the zigzag and chiral single‐wall carbon nanotubes (SWCNTs) based on Flügge shell theory considering the clamped‐simply supported, clamped‐free, clamped‐clamped and simply supported‐simply supported end conditions. After developing the governing equation of the objective system, the wave propagation approach is implemented for the purpose of obtaining the frequency equation in the eigen form for vibration of the considered system. In addition, the applicability of this model for the analysis of vibration of carbon nanotube is examined with the effect of length and ratio of height‐to‐radius. To generate the fundamental natural frequencies of SWCNTs, computer software MATLAB engaged. The numerical results are validated with existing open text. Since the percentage of error is negligible, the model has been concluded as valid.
Coenopopulation structure of some highmountain Nepeta species (serias Densiflora) in Central Asia
Authors: Astashenkov Alexey Yu.
Published: October 2019

The analysis of coenopopulations of high-mountain Nepeta ser. Densiflorae from Central Asia is conducted. It is established that changes in the peaks of the ontogenetic spectrum from centered to double-peak centered reflect change of the biomorph from tap-root caudex to long- rhizome-tap-root (caudex). The biomorph transformation directs at a gradient of changing environmental conditions: from cryoxerophitic to mesophitic habitats.
Main trends of biodiversity dynamics after natural and anthropogenic "catastrophes" in spruce forests of the European part of Russia
Authors: Ulanova Nina , Kaplevsky Andrei
Published: October 2019

We analyzed the main trends of the change in the species richness of phytocenoses after catastrophic natural (beetle outbreaks, windfalls) and anthropogenic (clear cutting) disturbances. We examined the dynamics of the structural diversity of species richness of herb-dwarf scrubs layer with different reforestation technologies after the death of spruce stands. The study of similarity and ordination of vegetation showed the proximity of the undamaged forest to the unharvested stand, and the difference of these phytocenoses from clear-cut. The main determining factor of species richness was the intensity of phytocenosis disturbance after catastrophes. The reforestation dynamics of phytocenoses after catastrophic disturbances were analyzed. Clear cutting led to the formation of meadow communities with a sharp increase in the species and structural diversity of phytocenoses.
Extrazonal steppes of forest belt on eastern macroslope of the Urals
Authors: Zolotareva Natalya , Korolyuk Andrey
Published: October 2019

Extrazonal steppes of forest belt on eastern macroslope of the Middle and South Urals have small coenotic diversity. The most part of studied communities are petrophytic steppes on outcrops, which determine regional features of plant cover and provide habitats to rare, endemic and relict plant species. Petrophytic steppes correspond to order Helictotricho- Stipetalia, meadow steppes and xeric meadows, shrub thickets correspond to order Brachypodietalia pinnati (class Festuco-Brometea).
An Approach to Short-Term Control of Integrated Energy Systems with Load-Controlled Consumers
Authors: Stennikov Valery , Barakhtenko Evgeny , Voitov Oleg
Published: October 2019

Modern cities and industrial centers boast a developed energy infrastructure including fuel, electric, heating, and cooling systems. The integration of many separate system into a single technological complex can provide new functional capabilities, the application of more advanced technologies for operation, and the establishment of integrated energy systems. Such systems have a multidimensional structure of functional features and properties of development. The control of integrated energy systems with load-controlled consumers represents an urgent and a rather challenging task. The paper is concerned with an approach to short-term control of integrated energy systems with load-controlled consumers. Planning the daily electricity and heat loads is performed for an integrated energy system, including energy storage systems and electric water heaters, electrical shiftable loads of individual consumers as well as power generation by additional electricity and heat sources (PV systems, wind turbines, heat pumps). The optimal daily profiles are obtained based on the initial profiles of electricity and heat loads, photovoltaic generation and optimal profiles of using electricity and heat storage systems and shiftable load. Optimal daily electricity and heat load profiles differ greatly from the initial ones, which provides a reduction in the energy costs for the consumer.
Active power measurement verification for electric power systems with battery energy storage
Authors: Glazunova Anna , Aksaeva Elena
Published: October 2019

The paper presents a method developed for detecting rough errors in the measurements related to batteries in the part of electric power system that is characterised by low data redundancy. Since batteries either produce or consume power, not all methods of bad data detection can be used to detect erroneous measurements of the active power of the battery in the case of low measurement redundancy. Because of different values of the active power that a battery may produce or consume at several snapshots in row, dynamic algorithms cannot be used. In this study, a new method of bad data detection is developed. The method is based on the battery control strategy analysis.
An analysis of wind and solar power variability to assess its implications for power grid
Authors: Shakirov Vladislav
Published: October 2019

The paper discusses the problem of parallel operation of wind and solar power plants with the power system associated with the influence of power fluctuations on the power quality and stability. A brief assessment of the prospects for the commissioning of the wind and solar power plants in Russia and a description of the associated negative impacts on the power system is given. A methodology for assessing the possible energy production of wind and solar power plants using raw data from weather stations is presented. Based on the methodology, an assessment of some regions of Russia in relation to the variability of wind speed and cloudiness is made. The wind power duration curves are given. An analysis of possible deviations of solar power under the influence of cloudiness is carried out. The effect of geographical aggregation of wind or solar power output to increase the guaranteed power generation and reduce the negative impact on the stability of the energy system is shown.
Stochastic Modeling of Electrical Field in Potato Tuber using Polynomial Chaos Expansion
Authors: Sawicki Bartosz , Krupa Artur
Published: October 2019

The paper deals with numerical modeling of objects with a natural origin. The stochastic approach based on description using random variables allows processing such challenges. The Monte-Carlo methods are known a tool for simulations containing stochastic parameters however, they require significant computational power to obtain stable results. Authors compare Monte- Carlo with more advanced Polynomial Chaos Expansion (PCE) method. Both statistical tools have been applied for simulation of the electric field used in ohmic heating of potato tuber probes. Results indicate that PCE is remarkably faster, however, it simplifies some probabilistic features of the solution.
Analytical simulation of magneto-hemodynamic flow in a semi-porous channel using the Polynomial Least Squares Method
Authors: Căruntu Bogdan , Bota Constantin , Bundău Olivia
Published: October 2019

The present article proposes a new analytical approximate solution for the magneto-hemodynamic laminar viscous flow of a conducting physiological fluid in a semi-porous channel under a transverse magnetic field, solution obtained by using the Polynomial Least Squares Method (PLSM). A comparison of our approximate solutions obtained by PLSM with previously computed approximate solutions illustrates the accuracy of our method. A discussion of the effects of the parameters Re (the Reynolds number) and Ha (the Hartmann number) on the blood flow velocity is included.
On the integrable deformations of a system related to the motion of two vortices in an ideal incompressible fluid
Authors: Lăzureanu Cristian , Hedrea Ciprian , Petrişor Camelia
Published: October 2019

Altering the first integrals of an integrable system integrable deformations of the given system are obtained. These integrable deformations are also integrable systems, and they generalize the initial system. In this paper we give a method to construct integrable deformations of maximally superintegrable Hamiltonian mechanical systems with two degrees of freedom.

An integrable deformation of a maximally superintegrable Hamiltonian mechanical system preserves the number of first integrals, but is not a Hamiltonian mechanical system, generally. We construct integrable deformations of the maximally superintegrable Hamiltonian mechanical system that describes the motion of two vortices in an ideal incompressible fluid, and we show that some of these integrable deformations are Hamiltonian mechanical systems too.
Influence of Dynamic Loading on Fracture Behaviour of DCB Sandwich Specimen
Authors: Burlayenko Vyacheslav N. , Sadowski Tomasz , Pietras Daniel
Published: October 2019

Numerical simulations of dynamic fracture behaviour of a double cantilever sandwich beam subjected to uneven bending moments in plane conditions are carried out using the dynamic finite element analyses with the ABAQUSTM code. The strain energy release rate was evaluated by means of the finite element model developed within the two-dimensional (2-D) linear elastodynamic theory. This demonstrates the capability and the reliability of the finite element modelling as an extremely useful numerical tool for solving dynamic fracture mechanics problems. Also, the dynamic behaviour of fracture parameters and interface crack progression is discussed.
Numerical assessment of stress concentration in Francis runner blade — crown/band junctions
Authors: Predoiu I–C , Marsavina L. , Muntean S.
Published: October 2019

The paper presents the results of numerical investigation for stress distribution near runner blade-crown/band junctions. Starting with the geometrical investigation of the geometries for a real turbine, different junction geometries were identified. Eight different junction geometries were numerically investigated in order to determine the stress distribution.
The applied load for structural analysis was the pressure distribution, obtained from a Computational Fluid Dynamics analysis of the runner blade. The results of the stress distribution will allow to quantify the effect of different junction geometry on stress concentration and integrity of the runner.
Modelling the cyclic response of structural steel for FEM analyses
Authors: Zub Ciprian Ionut , Stratan Aurel , Dubina Dan
Published: October 2019

Modelling the cyclic response of structural steel plays an important role in the design and performance assessment of steel structures. Up to date, several mathematical models were developed to simulate metal plasticity, but only some of them were implemented in Finite Element Method (FEM) based software packages such as Abaqus, by using incremental plasticity procedures. Within this article, the “built-in” combined isotropic/kinematic hardening model is used to model metal plasticity under cyclic loading regime. A brief description of the constitutive model together with the calibration procedure of the material parameters based on experimental data are presented. Finite element analyseswere carried out on simplified FEM models to provide numerical predictions using the calibrated material parameters. Since the “built-in” combined model has several limitations (especially related to the isotropic component), adjustments of the material parameters were made to accommodate to different loading histories. The chosen material model and the calibrated input parameters are validated byanalysing the FEM predictions to be in good agreement with the experimental results with respect to cyclic behaviour and failure mode.
The Effect of Corrosion on the Natural Frequencies of Beams
Authors: Stanciu Steliana , Simoiu Dorin , Crâştiu Ion , Deac Sorin , Oanţâ Eduard Nicuşor , Bereteu Liviu
Published: October 2019

Corrosion is a natural process of degradation of the mechanical properties of some materials like: metals, ceramics or polymers. The metals and their alloys corrode only because of their presence in a damp environment, but the process is more powerful in some corrosive environments. Corrosion is a diffusion process by which some chemical bonds of the base material are broken, and therefore the oxides, bases, or salts are formed, resulting in a process of mass loss but also of weak interatomic bonding forces, that means a loss of stiffness. Mass distribution and stiffness in a mechanical structure determine the natural frequencies and shape of natural modes, that is, so-called modal parameters that characterize its dynamic behavior. The purpose of this paper is to determine the influence of simultaneous loss mass and loss stiffness on natural frequencies. Applying the Finite Element Method and the Modal Analysis Module of the ANSYS software, the natural frequencies are obtained in numerical approach, which compares with the obtained analytical values, to confirm the validity of the proposed method.
Analysis of existing gender differences in the effect of using the Virtual Campus platform of the Politehnica University of Timisoara
Authors: Ciuclea Camelia , Ternauciuc Andrei
Published: October 2019

Admitting the increasing interest for education delivered by the means of technology is relevant if we consider all the aspects, including features related to gender. Several studies point out that women and men differ in their way of interacting with technology, ICT being traditionally associated with men [1]. In the context of blended learning settings, there are several existing gender differences, which means a statistical analysis focused on differences between men and women users of the Virtual Campus platform is needed. The main objective of this study is to provide evidence of significant gender differences in the effect of using certain platform tools by both genders. A subsequent objective is to test if the efficiency of both manners of working with e-learning tools eventually converge around similar results (in case the results point to scarce differences). The research was conducted by looking at the final number of students following the Distance Learning program run by the eLearning Center at UPT, during the first semester of the academic year 2017-2018. Distance learning students enrolled at Politehnica University Timisoara are mostly digital natives, consumers of technology in order to support the teaching and learning processes. The aim of this paper is to analyze the gender differences in using the platform, based on the students’ online activity statistics from Moodle and all the resulting data.
Digital Transformation of Innovative Business Processes on Railway Transport
Authors: Ovchynnikova Viktoria , Kuzmenko Anna , Yusupova Tetyana , Toropova Vladislava , Gontar Nadia
Published: October 2019

The article finds that acceleration of the pace of global high-intellectual development causes the digital transformation of innovative business processes in the Ukrainian railway transport, and consequently, the continuous improvement of intellectual information systems and technologies of management of innovative processes. The study of the existing models of the innovation process enabled to distinguish its sixth type of “model of digital networks and artificial intelligence”. The main feature of this stage of the development of the innovation process is the formation of a single digital platform (innovation portal), which will allow to make transparent the basic business procedures and to form Big Data with the ability to optimize the main innovative business processes. It is proved that a new approach to innovative business processes should include the formation of an intellectual information platform for innovative management which should become a key link to support innovative business processes in the industry. An integrated data bank (Big Data) and situational control centers should also be created as tools for promoting the process of making innovative decisions. As the coordinating situation centers of innovation activity, it is advisable to distinguish between “Investments”, “Innovation”, “Personal”, “Transport Logistic”.
Technological and economic estimation of efficiency of a route choice for transportation of dangerous goods
Authors: Lavrukhin Oleksandr , Kovalov Anton , Kulova Daria
Published: October 2019

One of the main conditions for the transportation of goods, especially dangerous, is minimizing all types of eventual cost in the event of an emergency. The cost value depends on multiples factors, which are significantly influenced by the location of the train in different places (such as running line, technical stations, residential places, etc.). The proposed approaches on the basis of the queuing theory will allow choosing traveling routes of cars with dangerous goods providing the minimum average cost reduced to one emergency situation.
High-Speed Railways is a Priority Direction for the Development of Railway Transport
Authors: Yanovska Viktoriia , Levchenko Olga , Tvoronovych Viktoriia , Bozhok Anastasiia
Published: October 2019

The article deals with the Chinese global strategy the Silk Road Economic Belt and the possibility of involving Ukraine in it. The authors pay special attention to the implementation of the China-Ukraine-EU High-Speed Railway Project within the framework of the Silk Road Strategy. The geopolitical position of Ukraine allows the authors to state that Ukraine may represent a special interest for the Celestial Empire as a logistical hub and a kind of “window” to Europe, as the central axis of the international transport corridors passes through Ukraine. The authors analyze the direct economic, as well as external economic and social effects of the construction of High-Speed Railways in Ukraine.
Research of the economic risk factors of the functioning of the Ukrainian transport system
Authors: Bogdan Nataliia , Pogasiy Sergii , Pysareva Iryna , Krasnokutska Iuliia
Published: October 2019

The purpose of this article is to research and to evaluate the risk factors of the transport system of Ukraine. The article examines the state of the transport system of Ukraine. The classification of specific risks of the transport system has been developed in two areas: the nature of occurrence and in relation to the transport system. The conceptual model of comprehensive research of the factors of economic risk has been proposed. It includes 4 modules. The approaches to the identification of the factors and indicators for assessing the economic risks of transport systems at the national and regional levels have been formed. In the result the comprehensive evaluation of the risk factors of regional transport system of Ukraine has been carried out. Identification of risks at the national and regional transport system is necessary for the effective strategy of the industry development through quantitative risk analysis which enables to give a real assessment of their own resources and capabilities in relation to the state (and needs) of the external environment. The rational choice of the strategies from a variety of options should be made on this basis.
Methodical approaches to the distribution of actual costs of railway infrastructure in conditions of fuzzy indeterminacy
Authors: Zorina Olena , Kalabukhin Iurii , Kameneva Nataliia
Published: October 2019

The authors propose methodical approaches to the distribution of actual maintenance costs for the station infrastructure of the track facility, as well as the signalling and communication facility of each station, as well as the distribution of cost measurements according to the type of work and the implementation costs in the organization of freight transportation.
Risks of Traders on the World Stock Market on the Example of Ukraine
Authors: Abuselidze George , Mohylevska Olga , Merezhko Nina , Reznik Nadiia , Slobodianyk Anna
Published: October 2019

The article reveals the essence and features of the development of the stock market in Ukraine. It was established that the vigorous activity of countries in the world financial markets means that they also face a risk of global financial turmoil (the so-called “domino effect”). It is determined that the impact of global financial instability on the country depends on the openness of its economy that will lead to significant external “shocks”. The possibility of providing effective influence on domestic stock market activity with taking into account the changing world situation, development of perfect trading strategies for each participant is substantiated. The conducted analysis of the world market conditions of stock markets in recent years has made it possible to assess the real risks for new participants in the stock market and become the basis for the development of an appropriate effective trading strategy. The practical significance of the results is that they allow for a measurable approach to assessing the existing risk when choosing one or another trading strategy to move to the world stock market.
Social and economic efficiency of development and use of alternative power energy
Authors: Borovik Yuriy , Yelagin Yuriy , Gritsenko Natalia , Kondratyuk Nikolay , Nakonechniy Vladimir
Published: October 2019

Research has been performed on the state of development and trends for alternative energy sources. Advantages and disadvantages of renewable energy have been considered. Main types of the effects due to the implementation of renewable energy sources have been investigated. Main aspects of the actual effects upon society as a whole have been determined, in order to perform the objective assessment of the social efficiency of implementation of renewable energy sources. Methods to determine the social and economic efficiency of using the renewable energy sources have been suggested.
Government guidance on the promotion environmental enterprise security
Authors: Dykan Olena , Nakonechny Volodymyr , Mashchenko Maryna , Klimenko Olena , Obruch Ganna
Published: October 2019

Environmental security of the enterprise characterizes the state of protection of the enterprise and the environment, which allows you to maintain resistance to internal and external threats, providing the ability to solve problems of balanced development of the enterprise and improve the environment, contributes to the implementation of national concepts of socio-ecological and economic development and mechanisms to ensure it. The main tasks of the state to provide environmental security must be: substantiation of choice and decision-making in relation to the limited resources of nature and the environment as a specific public good; evaluation and comparison of costs and benefits in the environmental sphere, the rationale for the criteria and indicators of efficiency of nature protection actions; the analysis of market power for the environmental sector; consideration of external environmental effects (externalities); the development of methods for the estimation of an economic damage from pollution of natural environment; development of models of socioeconomic development that meet the requirements of environmental security.
The concept of management of economic security of the railway transport in the context of overcoming the manifestations of a systemic crisis
Authors: Dykan Volodumur , Tokmakova Iryna , Pavlichenko Volodymyr , Cherednychenko Oleksandr , Korin Myroslava
Published: October 2019

The article analyzes the trends in the functioning of railway transport in Ukraine, which allowed to identify the manifestations of the systemic crisis in the industry. On this basis, the risks and threats to the economic security of rail transport are highlighted. The concept of management of economic safety of railway transport is formed. The object and subject of management of economic safety of railway transport, principles and purpose are defined. The tools of management of economic safety of railway transport in the following directions are revealed: formation of institutional and organizational basis of development of railway transport; providing innovative transformations to improve technological capabilities and raise the level of security; ensure social development and competencies of staff to increase loyalty; create communications to maintain effective communication of railway transport and development of partnerships.
The conditions of the balance of the national labor market in the process of institutional reform
Authors: Gavkalova Nataliia , Sybirtsev Volodimyr , Sochynska-Sybirtseva Iryna
Published: October 2019

The aspects of implementation of the processes of functioning and development of the national labor market in the context of manifestation of its internal complexity and multifunctionality are determined. The regularity of the growth of needs in the development of the institutional structure of the national labor market in the conditions of transformation and restructuring of the system of socio-economic relations is proved. The existence of a multiplicative effect of distribution, dissemination of new institutional practices implemented on the national labor market, institutional regulation of a wide range of economic operations, phenomena and processes has been established. The substantive essence of the process of building the institutional space of the national labor market is determined, which consists in institutionalizing (institutionalizing) the processes of socialization of socio-economic relations related to productive employment, in the context of which there is an increase in the significance and role of human resources in the processes of creation of economic goods, expanded social reproduction, etc.
Logistic foundations of sustainable socio-economic development of the region in the context of decentralization
Authors: Kasych Alla , Onyshchenko Oksana
Published: October 2019

Incompleteness of processes of structural reformation of Ukrainian economy reveals itself on the regional level. Argument towards the utility of decentralization reform was Ukraine-Europe integration. Decentralization should be viewed as a powerful tool of governmental policy for balanced development of territorial communities. In addition, it’s crucial to remember that the greatest effect will be achieved in a long term. Strategic development of united territorial communities (UTC) includes countless tasks that need to be solved as soon as possible. And organization of effective logistic activity in the region appears to be one of the ways to strengthen regional economy, to improve security level and development. The problem of ensuring stable socio-economic growth of a community is as well a logistic problem. It can be represented as a problem of optimization of flow processes of effective resource usage to achieve balanced processes of creation and consumption of resources in socio-economic system. Logistization of economic relationships on UTC level allows community to ensure better decision making of key tasks of regional management such as creation of optimal strategy to manage structural offers and material flows of social production; optimization of material, financial and informational flows of the region.
Social threats in the digitalization of economy and society
Authors: Khandii Olena
Published: October 2019

As Ukraine slowly moves towards the digitalization of the economy and society, new trends in the social and labour sphere are revealed that have become challenges to the traditional system of social protection and regulation of labour relations. The impact of digitalization on the social sphere is ambiguous and creates both new opportunities and social threats that have become the purpose of the study. The social threats of digitalization for the nation include moral and spiritual degradation of society, reforming the economy without taking into account social priorities, the growth of structural unemployment, and cyberthreats in the national security system. It is substantiated that the main social threats posing a danger to every person in the process of digitalization are the Internet dependency, personality degradation, decline in mental health, further income differentiation, unemployment increase, increased state control over income and expenses of each person, decrease of personal life security, increased risk of loss of personal information, financial resources as a result of cybercrime and human negligence, computer illiteracy, transfer of decision-making powers to machines. Recommendations for improvement of institutional support of digitalization are proposed in order to minimize social threats in society.
Paradigm of Development of Economic and Social Systems and Decent Work Provided in the Context of Systemic Changes
Authors: Kompaniets Victorya , Danilyan Vadim , Shulgina Larisa , Pavlichenko Volodymyr , Ostapuk Boris
Published: October 2019

The article deals with the reasonable grounds for the idea of required transformations not only at social and economic level, but initially the changes should be realized at non-economic level, in order to provide the development of economic and social systems and decent work in the context of systemic changes. This approach involves the choice of a non-linear progress paradigm, transformation of the values for top-managers and entrepreneurs and society as a whole, formation of rules and incentives within the institutional system of national states and international community, being aimed at reorienting the economy towards human oriented direction.
Cryptocurrencies in the global space: factors and prospects of promotion
Authors: Kramarenko Anna , Kvitka Anton , Diachek Vitaliy , Davydov Denis
Published: October 2019

The article considers the place of cryptocurrency markets in the global economy. The key risks of active implementation of IT achievements in the financial sector were defined. It was shown that cryptocurrencies are associated with settlement operations, investment activities and speculation in the currency markets. It was argued that the availability of equipment for the production of digital currencies, the spread of trust on the part of users and business representatives contribute to the promotion of cryptocurrencies and the penetration of digital currencies in various spheres of economic activity. The attraction of additional resources in the economy in the conditions of insignificant costs for entering the cryptocurrency market that become a factor in the spread of cryptocurrency assets was considered.
Organization and conduct of environmental and economic monitoring of the state of material flows in of thermal power facilities systems under the conditions of electromagnetic fields
Authors: Kulikov Petro , Chernyshev Denis , Bielova Alla , Zhuravska Nataliia
Published: October 2019

The application of physicochemical analytical control for the determination of ecological compatibility of techno-natural systems as a factor mark of the state of material flows in the application of non-reagent water preparation in electromagnetic fields for heat-energy objects of the housing and communal sector and industrial enterprises with low production capacity is substantiated. Heat evaporation and hydrocarbons were selected as test gradients for the heating systems. In both cases, there was no excess emission limit value.
Problem aspects of use of the intellectual property of Ukrainian enterprises
Authors: Maslov Yurij , Semenova Valentyna , Luniachek Vadym , Kerekesha Olga
Published: October 2019

The article is devoted to the study of the processes of formation and use of intellectual capital at Ukrainian enterprises and the analysis of the efficiency of innovative activity of domestic enterprises. The analysis conducted showed that domestic enterprises and organizations nowadays slow down the innovation activity and reduce the efficiency of the use of intellectual capital. Such tendencies are the consequence of the imperfection of the legislative framework for stimulating innovative activity of domestic enterprises; lack of incentive mechanism for developers and inventors, innovative enterprises and organizations. Problems of innovative development are inherent in both the state level of management and the management at the level of individual enterprises. It is necessary to form effective innovative state and regional development programs, to create modern innovative infrastructure, to develop at the legislative level the mechanism of preferential taxation and crediting of innovatively active enterprises, etc.
Development of a strategy for improving organizational and production structures based on methods for non-convex programming
Authors: Novakivskyi Igor , Kozyk Vasyl , Mrykhina Oleksandra , Koleshchuk Orest
Published: October 2019

The scientific paper discloses problems of functioning of financial industrial groups, particularly their flexible organizational and production structures. The authors highlight that maintaining sustainability of development of financial industrial groups is oriented towards preserving integrity of their organizational and production structures and keeping a set of parameters within given limits, taking into account internal disturbances and external impacts. Generally, sustainable development of organizational and production structures contemplates concerted actions directed towards accomplishing the following two goals: maximizing indicators displaying results of activities of an organizational and production structure through determining optimal amounts of investments by different directions of activity of its modules, as well as minimizing a probable deviation from planned results by directions of activity. The authors have built a two criteria mathematical model for managing development of prospective directions of activities of organizational and production structures, which takes into account their riskiness and is based on retrospective data. To search the optimal value of a functional, the authors have developed a four-step algorithm for solving the indicated problem. To solve the indicated problem of constrained optimization, the authors have applied the method of steepest descent.
Institutional System of Human Development and Institutional Environment: Relationship Features
Authors: Stryzhak Olena
Published: October 2019

The article considers the features of human development in the context of the concept of sustainable development. The need to study the institutional system of human development as regulated multilevel system of interconnected formal and informal institutions is justified. The relationship between the level of human development and the quality of the institutional environment is determined using the methods of correlation analysis. Analyse covers 214 countries and territories for 2017. The results of the correlation analysis show that there is a strong direct interconnection between HDI and WGI. The correlation ranges from significant to very strong one. This gives grounds for conclusion that there is influence of the quality of institutional environment on the level of human development.
The role of stakeholders’ interests management mechanism in the transport services market development
Authors: Tretyak V.P. , Rekun G.P. , Andreieva K.O. , Bieliai M.S.
Published: October 2019

Article deals with stakeholder’s interests analysing in transport services market. The main goal of the paper is to propose the best solution for current stakeholders’ conflicts in transport market. Common groups of stakeholders in transport services market are identified. Stakeholder’s interests are highlighted and analysed. Social, corporate, business, ecological, and political interests are compared. One-level and inter-level conflicts of stakeholders’ interests are figured out. Analysis according to Importance and Influence Stakeholder Analysis framework has been made. In particular, it is determined that the stakeholder’s conflicts are complex and entailed the emergence of a conflict web. A set of tools for most effective solving current problem and achieving existence opportunities are selected. Searching for a “win-win” solutions is proposed as the basic strategy for resolving stakeholders’ conflicts of the transport services market, achieving the goals of sustainable development, and acceleration of European integration processes.
Fate Tracing of Isl1+Cells in Adult Mouse Hearts under Physiological and Exercise Conditions
Authors: Zhou Yunhe , Yang Hua , Shi Jiahao , Zhang Mengjie , Yang Sai , Wang Ning , Sun Ruilin , Wang Zhugang , Fei Jian
Published: October 2019

Myocardial damage due to dysfunctional myocardium has been increasing, and the prognosis of pharmacological and device-based therapies remain poor. Isl1-expressing cells were thought to be progenitor cells for cardiomyocyte proliferation after specific stimuli. However, the true origin of the proliferating myocardiac cells and the role of Isl1 in adult mammals remain unresolved. In this study, Isl1-CreERT2 knock-in mouse model was constructed using CRISPR/Cas9 technology. Using tamoxifen-inducible Isl1-CreERT/Rosa26R-LacZ system, Isl1+cells and their progeny were permanently marked by lacZ-expression. X-gal staining, immunostaining, and quantitative PCR were then used to reveal the fate of Isl1+cells under physiological and exercise conditions in mouse hearts from embryonic stage to adulthood. Isl1+cells were found to localize to the sinoatrial node, atrioventricular node, cardiac ganglia, aortic arch, and pulmonary roots in adult mice heart. However, they did not act as cardiac progenitor cells under physiological and exercise conditions. Although Isl1+cells showed progenitor cell properties in early mouse embryos (E7.5), this ability was lost by E9.5. Furthermore, although the proliferation and regeneration of heart cell was observed in response to exercise, the cells associated were not Isl1 positive.
Rheumatoide Arthritis aus der Perspektive der Āyurveda-Medizin – Diagnose und Therapie
Authors: Chopra Ananda Samir
Published: October 2019

Das modern definierte Krankheitsbild der rheumatoiden Arthritis wird im Āyurveda meist mit der klassischen Krankheitskategorie Āmavāta identifiziert. Bei dieser Erkrankung bewirken die Ansammlung „unverdauter Stoffwechselprodukte“ (Āma) und die gleichzeitige Aggravation des Doșa Vāta Gelenkentzündungen und verschiedene andere Symptome. Auf der Grundlage einer genauen Diagnose der Erkrankung und des Patienten erfolgen individuelle Empfehlungen zu Ernährung und Lebensweise. Eine vielfältige Phytotherapie und auch der Einsatz intensiver Therapieverfahren, welche ausleitende und krankheitsbehandelnde Anwendungen enthalten, ergänzen das umfassende therapeutische Spektrum der Āyurveda-Medizin. Heutzutage wird die Wirksamkeit vieler āyurvedischer Therapieansätze auch nach modernen Kriterien untersucht. Probleme und Perspektiven solcher Studien werden ebenfalls kurz diskutiert.
Entwicklung einer Schulung zur Förderung der Gesundheitskompetenz von Patienten mit variablem Immundefekt (CVID)
Authors: Bayrhuber Marianne , Tinsel Iris , Goldacker Sigune , Farin Erik , Warnatz Klaus , Nieters Alexandra
Published: October 2019

Ziel der Studie Ziel ist es, die Entwicklung einer Schulung zur Förderung der Gesundheitskompetenz von Patienten mit einem Immundefekt und die Ergebnisse zur Zufriedenheit und Akzeptanz darzustellen.

Methodik Der Bedarf der Patienten an einer Schulung wurde mit einem Fragebogen ermittelt (N=238), zusätzlich wurden Interviews mit ärztlichen Immunologen (N=5) und Personen mit variablem Immundefekt CVID (N=9) geführt. Auf dieser Basis wurde ein Manual für die Schulung erstellt, welches (1) die aktive Kommunikation mit Behandlern sowie (2) die gesundheitsbezogene Kommunikation am Arbeitsplatz beinhaltet. Die Beurteilung der Zufriedenheit der Teilnehmenden (N=49) mit der Intervention erfolgte anhand eines Fragebogens.

Ergebnisse Die Bewertungen der Schulung aus Sicht der Patienten liegen im guten bis sehr guten Bereich (M=1,77; SD=0,38). Aus der Analyse der Freitexte konnten hilfreiche Hinweise für die Verbesserung der Schulung abgeleitet werden.

Schlussfolgerung Die Ergebnisse der Evaluation der Patientenschulung zeigen, dass die neue Schulung akzeptiert wird und von den Patienten als verständlich und relevant eingeschätzt wird.
Infectious Aortic Root Pseudoaneurysm after Bentall Procedure: To Treat or Not to Treat by Redo Operation?
Authors: Saitto Guglielmo , Russo Marco , Pugliese Marta , Vacirca Sara R. , Bertoldo Fabio , Nardi Paolo , Ruvolo Giovanni
Published: October 2019

We present a case of a 75-year-old man who developed an early aortic bioprosthesis endocarditis due to Klebsiella pneumoniae complicated by aortic root pseudoaneurysm after Bentall procedure. A prompt surgical option was hypothesized, but we decided to wait and keep on clinical observation and antibiotic therapy. One year after discharge, we observed stable clinical conditions and echocardiographic findings. A question: to treat or not to treat by redo operation an infectious aortic root pseudoaneurysm?
Spectrum of Cardiovascular Abnormalities in Infants Born to Diabetic Mother in a Tertiary Care Center
Authors: Arul A. S. , Babu Kandha Kumar A. S. , Kiruthiga K. , Priya M. Kanaga , Neveythaa S. A.
Published: October 2019

Background Diabetes mellitus is one of the most common medical problems among pregnant women. Now, gestational diabetes mellitus (GDM) is increasing and amounts to 17% in Asian women but only in 4% of American and European women. In southern India, the prevalence of GDM is 17% in urban women, 13.8% in semiurban, and 9.8% in rural women.

Aim The aim of the study is to find the cardiovascular abnormalities in infants born to a diabetic mother (IDM) and the association between infant’s heart lesion and diabetes mellitus in pregnant mother in a tertiary care center.

Materials and Methods All babies born to both pregestational and gestational diabetic mother were included. Information regarding maternal type of diabetes, treatment regimen, maternal glycemic control status, antenatal ultrasonogram, baby’s sex, birth weight, gestational age, and clinical features were collected. Echocardiogram was done for all the babies.

Results Out of the 100 IDM, 28 babies had cardiac disease, 5 babies had cyanotic heart disease, and 23 babies had acyanotic heart disease. Out of 100 diabetic mothers, 66 were on meal plan, 21 were on oral hypoglycemic agent (OHA) metformin, and 13 were on insulin therapy. Among 66 babies whose mother was on the meal plan, 8 had cardiac abnormality. Among the 21 mothers on OHA, 7 babies had cardiac abnormality and all the 13 babies of mothers who were on insulin had cardiac abnormality which was a significant finding among the IDM.

Conclusion Maternal diabetes is a significant risk factor for heart disease in the newborn. Careful evaluation and early diagnosis of heart diseases in this high-risk group is of great value. Both pregestational and gestational diabetic mothers should monitor their blood sugar and maintain it in a normal range at the time of conception and early in pregnancy to reduce the risk of congenital heart disease in IDM.
Styloid Process Elongation or Eagle’s Syndrome: Is There Any Role for Ectopic Calcification?
Authors: Gokce Cumali , Sisman Yildiray , Sipahioglu Murat
Published: October 2019

Due to the angulation of maxillary bone as the maxillary bone resorption occurs from a buccal to
palatal direction, bucco-lingually tilted implant placement is more likely especially in the posterior maxilla. The aim of this paper was to present a case restored by using a maxillary hybrid denture using Cresco method. A 59-year-old woman with an edentulous maxilla and five missing mandibular teeth was referred for implant treatment. Six months after sinus lift operation, four mandibular implants and six maxillary implants were placed. Due to the bucco-lingual tilt of two implants, the Cresco method was chosen to fabricate the metal framework for the maxillary hybrid denture that was delivered four months after implant placement. The main advantages of the Cresco method are a perfectly passive framework fit and corrected screw access holes. All ten implants placed were considered successful at 1-year recall, and no screw access holes were seen in the buccal part of the maxillary acrylic teeth.It was concluded that such screw-retained maxillary hybrid denture using the Cresco method met the esthetic expectations of a highly demanding patient. (Eur J Dent 2008;2:220-223)
Effect of Storage Temperature on Bond Strength of a Self-Etch Adhesive System to Pulp Chamber Dentin
Authors: Donmez Nazmiye , Ari Hale , Belli Sema
Published: October 2019

Objectives: The aim of this study was to evaluate the effect of storage temperature on bond
strength of a self etching primer system to pulp chamber dentin.

Methods: SE Bond (Kuraray, JAPAN) adhesive system and Clearfil Photo Posterior (Kuraray, JAPAN) composite resin were used. Eight extracted caries-free human molar teeth were used. Access cavities were prepared through the pulp chamber, randomly distributed into 4 groups and prepared as follows: Group 1 (Control): SE Primer and SE Bond (SEB) were applied to the pulp chamber dentin according to the manufacturer’s instructions, immediately after the delivery from the manufacturer and then the pulp chamber was restored with a resin restorative material. The primer agent of the following groups was stored in a refrigerator and kept at 4�C. Group 2: restored with SEB, kept at 4°C refrigerator for 1 year, Group 3: restored with SEB kept at 23°C room temperature for 1 year and Group 4: restored with SEB kept at 40°C incubator for 1 year. After 24 hrs the teeth were trimmed for microtensile bond testing and loaded to failure at 1mm/min. Data were analyzed using one-way ANOVA and Duncan test (P<.05).

Results: The results indicated that Group 4 showed lowest bond strength when compared to the others (P<.05). No statistically significant difference was found among the other groups (P>.05).

Conclusions: As a result of this study, it was concluded that increasing storing temperature or storing period decreases microtensile bond strength of a SEB system to pulp chamber dentin. (Eur J Dent 2009;3:314-317)