bluuebunny/crossref_metadata_2025 huggingface dataset:
Controlling in the System of Anti-Crisis Management
Authors:   National Aviation University, Piletska S. , Kopcha Y. ,   National Aviation University, Kamyshna S. ,   National Aviation University
Published: September 2022

It is noted that the economy, as well as each of its subjects, is developing cyclically, changing one stage by another. The cyclic nature of economic development has led to the formation of such scientific direction as “controlling”, designed to ensure the sustainable functioning of enterprises in the deployment of crisis processes. The aim of the study is to develop theoretical foundations and practical recommendations on the specifics of using controlling in the system of anti-crisis management of the enterprise. The methodological basis of the study are the scientific works of classics of economic science, publications of leading scientists and experts exploring controlling as a means of diagnosing market opportunities and positions of the enterprise, the problems of crisis management of the enterprise. It was determined that the practice of application of controlling shows that without tools in this period of economic development it is impossible to compete with those enterprises that successfully apply it. The controlling services provide the system gathering, processing and analysis of the information by all enterprise divisions, determine the conformity of the adopted development strategy, prepare the constructive suggestions for the management and administration concerning the effective solution of the problems, which arise in the terms set by the program. It has been substantiated that in the process of formation of the information-analytical platform of controlling, not only the information itself, necessary for making behavioral decisions, but also the effective organization of its movement is of fundamental importance. Information controlling system supports the development of basic plans of the company. It is proved that in a changing environment in the process of crisis management the use of controlling by the enterprise will significantly improve the reliability of management information used to make strategic decisions, and reduce operational risks and the likelihood of technical errors in processing data on the activities of various departments of the enterprise. The tasks of controlling include development of information system structure, standardization of information channels and carriers, choice of information processing methods. When the economic situation in an enterprise worsens, manifested in a decline in liquidity and profitability, more services are expected from the controlling services to coordinate plans, analyze the causes of their deviation from the fact, as well as recommendations for survival in the short term.
Implementation of Advanced Digital Production Technologies within the Framework of Sustainable Development Concept: Problems and Prospects
Authors:   Ternopil Ivan Puluj National Technical University, Ostrovska Н.
Published: September 2022

The article highlights global trends in development of digital advanced production technologies within the framework of sustainable development concept in digitalization of the economy. The state of these processes in Ukraine was analyzed with emphasis on the challenges and advantages that digitization brings to domestic industrial enterprises, and proposals were projected to ensure their effectiveness. It has been proven that digitalization involves a digital technological transformation of industrial production, which opens access for different levels of management to the entire array of operational production information in real time, so as various digital algorithms and solutions make it possible to provide continuous feedback. It is noted that the socialization of technological development makes the company's personnel faced with serious challenges and has a significant impact on their consciousness and behavior, which requires the formation of the latest competencies.
Managerial Analysis of the Wuzi
Authors:   Odessa I. I. Mechnikov National University, Zhmai О.
Published: September 2022

In the V–III centuries BC in ancient China there were countless wars between different kingdoms. These years were called the Warring States period, and they were remembered not only for the large number of casualties, but also for progress in various fields of activity, including management. A great contribution to this sphere was made by the ancient Chinese general and strategist Wu Qi. His figure is perceived ambiguously, because from an early age he tried to get into political circles and occupy high positions, using all possible methods. At the same time, having gone from a wealthy but low social position to the post of prime minister, he was never defeated in battle, expanding the borders of each kingdom he served. Perhaps this is why the treatise on martial arts Wuzi that he left behind, is one of the most sought after. Despite the fact that it was written almost 2,500 years ago, the advice given by Wu Qi to the rulers of the kingdoms he served is relevant today, not only in terms of military affairs or governance, but also in the field of management and business. Analyzing every chapter and every section of this treatise, we see that the practice of modern government does not differ significantly from the best practices of the ancient world. Moreover, many companies in the XXI century should read this text, because such recommendations as hiring professionals who understand their field better than a manager, publicly reward the best employees, which will encourage healthy competition, appoint people to positions accordingly to the qualities they possess, or the idea that good leadership is the basis for victory, will come in handy and help achieve goals.
Modern Tools for Modeling, Planning and Regulation of Measures to Implement the Strategy of Environmentally Friendly Investment Development of Enterprises in the Country
Authors:   SHEI Donbass State Engineering Academy, Latysheva O. , Pidhora Ye. ,   SHEI Donbass State Engineering Academy, Kasianiuk S. ,   SHEI Donbass State Engineering Academy, Neronova L. ,   SHEI Donbass State Engineering Academy
Published: September 2022

Environmental and economic regulation involves the influence of governmental and non-governmental bodies on the functioning and development of the national economic system, industries and enterprises through a set of tools and levers of environmental and economic orientation. It is well-proven that for a domestic industrial enterprise at forming of the programs of the ecologically directed investment development it costs to use the tool of the modern planning and design of ecologization of activity and perfection of business processes. For the decision of problem of the ecologically directed improvement of business processes it costs to conduct a design and evaluation of their influence on the results of activity, that allows to define, at what level presently there are an enterprise and what his prospects of development and possibility of improvement of activity. In the article the result of design of the stages of strategy of ecologization of activity of industrial enterprise is presented on the basis of platform of design of «Ramus Modeler» of modern platforms of SADT – diagrams (Structured of analysis and design technique). In the article it is suggested to determine and regulate the basic stages of the program of nature protection investment development on the basis of their design with the use of application of ARIS (Architecture of Integrated Information Systems) package. In the article the result of design of the stages of improvement of nature protection activity of industrial enterprise is presented in the standard of functional design – IDEF0 (Integration Definition for of Function Modeling) of «Ramus Modeler» software. It is well-proven that the context diagram (functional diagram of higher level) and her decoupling got as a result of design give the evident detailed description of the stages of ecologization of activity, and also aim, tasks, expected results and existent resources, mechanisms of management and providing, entrance and initial documentation, responsible persons et al, that allows to set possible defects and bring in necessary changes.
Economic Content of the Potential to Overcome the Crisis
Authors:   Kharkiv Simon Kuznets National University of Economics, Lola Yu.
Published: September 2022

The global challenges of the 21st century are transforming people's lives, all socio-economic and political processes in the state and regions. Emphasis, composition and interrelationships are changing in the process of formation and use of the economic potential of the region in crisis conditions, which is primarily characterized by the ability of a person to adapt the use of available resources to new adverse factors and quickly rebuild the usual socio-economic systems. In conditions of uncertainty and constant upheavals, human, intellectual, innovative capital acquires leading importance, which largely depends on the level of education in the sciences in the country, which in times of crisis needs special attention and state support.
Regional Innovation Development Based on Smart Specialisation: Typology of Smart Priorities
Authors:   Institute of Industrial Economics of the NAS of Ukraine, Shvets N.
Published: September 2022

The article clarifies the essence of the concept of "smart priorities" and presents the author's typology of smart priorities, based on the systematisation of theoretical and methodological approaches and empirical study of the results of prioritisation of EU regions development in the framework of regional strategies of smart specialisation. The expediency of supplementing the categorical apparatus of the theory of smart specialisation with the definition of "smart-priority" is emphasized. The author's interpretation of this concept, combining the essence of priority as a constructive component of smart specialisation strategy with the principles of smart choice, which are embedded in the methodology of smart specialisation and reveal its specifics, is proposed. According to the results of the literature analysis, the conclusion about the absence of a generalized typology of smart priorities and the relevance of its development. To typologize the priority spheres, a population approach was used, which involves identifying priorities with similar characteristics and combining them into groups according to certain characteristics. The sample of smart priorities for the study was formed according to the results of a multistage selection of regions registered on the S3 Platform. The final population included 354 priorities of 131 regions of EU countries. Based on the generalisation and systematisation of regional priority domains, eight typogroups were identified according to the following characteristics: the level of territorial division, inclusion of smart specialisation policy objectives, coverage of economic sectors, complexity, sectoral focus, directions of structural change, meaningful similarities, potential implementation by the initiating region. The developed typology allows for a comparative analysis of projects and policies to support them, which are implemented in the framework of regional strategies for smart specialisation. Also, the allocation of priorities on the basis of the potential for implementation by the initiating region provides an additional analytical tool for the development of this strategy. This tool provides for the distribution of regions into groups based on the assessment of their economic and innovative capabilities to develop the selected strategic domains. The proposed approach to the differentiation of territorial units provides preliminary information about the ability of regional ecosystems to create innovation and an understanding of the necessary additional components of smart specialisation strategies.
SUBJECTIVE GEOMETRY FOR PROBLEM MODELING IN THE ANALYTIC HIERARCHY/NETWORK PROCESSES
Authors: Shih Hsu-Shih
Published: September 2022

This paper is in memory of Professor Thomas L. Saaty, who died on the 14th of August 2017.
In a problem-solving process, the first step is to model a real-world problem. The modeling effort is one of the hardest parts of the process, and there is no universal way to do it. The initial step involves structuring the problem and obtaining a simplified problem so that any multi-criteria or statistical models can be applied. This paper intends to explain the modeling process through subjective geometry. Although creative thinking is critical in developing the hierarchies and networks in the Analytic Hierarchy or Network Process (AHP/ANP), models from business management and information theories can supply a verified ready-to-use relationship among elements and their clusters. We hope the exploration offers a guideline for utilizing the AHP/ANP in more detail.
Parsimonious Approach to in Analyzing Brainwaves for VR Users
Authors: Oh Gi-Sung , Jeong Won-Jun , Cho Sung-Jin , Oh Seok-Hee
Published: September 2022

For the development of virtual reality (VR) technology, research to solve the VR Sickness is essential. Many attempts have been made to measure and reduce VR Sickness using questionnaires, analysis, and bio-signals, but it is true that analytical research through clinical practice still lacks. In this paper, the researcher collected bio-signals and questionnaire data to analyze the correlation between VR Sickness and user and perform principal component analysis and chi-square independence test based on the collected data. As a result, the researcher was able to be aware of the user’s concentration and relaxation state by EEG and found they are correlated with VR Sickness. Finally, the result of the analysis was cross-checked to confirm that these correlations show a significant difference. The empirical result of this study is expected to be used for the research to reduce VR Sickness through bio-signal.
Performance of End-to-end Model Based on Convolutional LSTM for Human Activity Recognition
Authors: Sun Young Ghyu , Kim Soo Hyun , Lee Seongwoo , Seon Joonho , Lee SangWoon , Kim Cheong Ghil , Kim Jin Young
Published: September 2022

Human activity recognition (HAR) is a key technology in many applications, such as smart signage, smart healthcare, smart home, etc. In HAR, deep learning-based methods have been proposed to recognize activity data effectively from video streams. In this paper, the end-to-end model based on convolutional long short-term memory (LSTM) is proposed to recognize human activities. Convolutional LSTM can learn features of spatial and temporal simultaneously from video stream data. Also, the number of learning weights can be diminished by employing convolutional LSTM with an end-to-end model. The proposed HAR model was optimized with various simulation environments using activities data from the AI hub. From simulation results, it can be confirmed that the proposed model can be outperformed compared with the conventional model.
Research Into the Security Threat of Web Application
Authors: Zhang Yanling , Zhang Ting
Published: September 2022

In order to effectively analyze the security threat of web application, the security threat model of web application is established. Firstly, the main problems with web application are summarized. Secondly, the main security threat of web application are analyzed, and the corresponding optimization model is constructed. An algorithm based on the improved Butterfly Optimization Algorithm (BOA) security threat optimization model is designed. Finally, a SQL injection loophole is selected for example research, and the security threat path of web application is obtained. The results show IBOA has the advantages of high optimization accuracy, global optimization and stable solution, and average accuracy rate is 99.1% and the average recall rate is 99.1%, which shows that the model has better classification effect, therefore it has the best performance.
Research on Web GUI Image Recognition System Based on Improved Convolutional Neural Network
Authors: Zhao Nannan
Published: September 2022

In this paper, a MobileNet V2 convolutional neural network depending on L2 regularization method, a amended particle swarm model and Dropout method are constructed in a bid for enhancing the accuracy and speed of Web GUI image recognition for establishing Web Web GUI image recognition system of Web GUI test. Firstly, an improved MobileNet V2 convolutional neural network is constructed. Secondly, the basic models of L2 regularization method, improved particle swarm method and Dropout method are studied, the improved MobileNet V2 convolution neural network optimization algorithm is proposed, and the basic model of image processing is designed. Finally, simulation analysis is carried out on Web GUI image recognition through using the amended convolutional neural network on basis of MINIST data set as the research object. The simulation results illustrate that the amended convolutional neural network proposed in this study is more accurate and efficient in Web GUI image recognition.
The effectiveness of history teacher education concerning the development of lesson planning knowledge: an example from Germany
Authors: Wolf Jörgen , Rothland Martin , Brauch Nicola
Published: September 2022

Previous studies from German-speaking areas of Europe could not prove any substantial development in the competences and the pedagogical content knowledge of prospective history teachers during teacher training, and thus could not empirically confirm the effectiveness of teacher education. We report on the theoretical framework and the results of a new study on the development of knowledge of lesson planning. In the present study, the development of this kind of knowledge could be confirmed by different test instruments. We found significant differences in the level of knowledge between various cohorts of prospective history teachers (n = 282), but some deficits in history teacher training can also be identified.
Return of the Dialectics of Nature Debate
Authors: Sheehan Helena
Published: September 2022

John Bellamy Foster's recent work, The Return of Nature, makes a strong case that Marxism's central, materialist conception of nature and history makes it the best possible theoretical basis for radical ecological scholarship.
H. Bruce Franklin's Most Important Books
Authors: Franklin H. Bruce , Storm Doug
Published: September 2022

For nearly sixty years, H. Bruce Franklin has built a body of work that touches on everything Herman Melville to the military-industrial complex to a lowly, little-known fish that is a historical keystone of the U.S. fishing history.
Socioenvironmental Pathways to Conservation of Natural Resources & Environmental Betterment
Authors: Squires Victor , Feng Haiying
Published: September 2022

This is an analysis of past and on-going ‘land and people’ management issues in China’s extensive rural areas. Both authors draw on more than 20 years’ experience derived from working in China’s arid northwest and on the ‘roof of the world” on the Qinghai-Tibetan Plateau (QTP). Worldwide, communities of people have adapted to hot and dry, cold and arid and hot and humid environments. They have shown their adaptability and have made remarkable innovations that enabled them to survive for centuries.  But many of the strategies used now, and those unaltered from the past, are inadequate to cope with the fast-changing situation in modern China. The paper is in several parts. We explain some of the terminology around socioenvironmental thinking and its application to the real world with examples from the Qinghai-Tibetan Plateau – a vast upland in NW China. An attempt is made to show how a better understanding of the interplay of fast and slow variables can help to ensure conservation (wise use) of natural resources and serve the needs of the land users (mainly semi-nomadic herders of yaks, goats, sheep, camels and horses). We suggest that the term ‘situation betterment’ is a more realistic goal and the ‘solving’ the manifold problems (ecological, legal, economic, political and logistic) that beset land users, administrators, policy makers and the law makers. An explanation of the systems approach and its relevance to socio-environmentalism is offered
Implications for Distance Learning: Does Demographics Impact Students' Self-Perceived Proficiency in Information Technology?
Authors: Landor-Ngemi Jarrett
Published: September 2022

The purpose of this study is to investigate the impact of demographics on students’ self-perceived proficiency in information technology and its implication for distance learning. Data for this study were collected from students in both undergraduate and graduate programs. Even though research suggests that demographics have an impact on users of information technology, this study, however, reveals no statistically significant relationship exists between demographics and students’ self-perceived proficiency in information technology. The study however shows that most rated themselves as proficient in using spreadsheets, PowerPoint, conducting online research, using chat/thread discussions, and word processing while most students described themselves as below proficient in computer programming and Webpage design. This study also highlights the implications of the findings to distance learning.
On the Factorization of Numbers of the Form X^2+c
Authors: WOLF Marc , WOLF François
Published: September 2022

We study the factorization of the numbers N=X^2+c, where c is a fixed constant, and this independently of the value of gcd⁡(X,c). We prove the existence of a family of sequences with arithmetic difference (Un,Zn) generating factorizations, i.e. such that: (Un)^2+c= ZnZn+1. The different properties demonstrated allow us to establish new factorization methods by a subset of prime numbers and to define a prime sieve. An algorithm is presented on this basis and leads to empirical results which suggest a positive answer to Landau's 4th problem.
A Novel Deep Learning ANN Supported on Langevin-Neelakanta Machine
Authors: De Groff Dolores , Neelakanta Perambur S.
Published: September 2022

In the contexts of deep learning (DL) considered in artificial intelligence (AI) efforts, relevant machine learning (ML) algorithms adopted refer to using a class of deep artificial neural network (ANN) that supports a learning process exercised with an enormous set of input data (labeled and/or unlabeled) so to predict at the output details on accurate features of labeled data present in the input data set.

In the present study, a deep ANN is proposed thereof conceived with certain novel considerations: The proposed deep architecture consists of a large number of consequently placed structures of paired-layers. Each layer hosts identical number of neuronal units for computation and the neuronal units are massively interconnected across the entire network. Further, each paired-layer is independently subjected to unsupervised learning (USL). Hence, commencing from the input layer-pair, the excitatory (input) data supplied flows across the interconnected neurons of paired layers, terminating eventually at the final pair of layers, where the output is recovered. That is, the converged neuronal states at any given pair is iteratively passed on to the next pair and so on. The USL suite involves collectively gathering the details of neural information across a pair of the layers constituting the network. This summed data is then limited with a specific choice of a squashing (sigmoidal) function; and, the resulting scaled value is used to adjust the coefficients of interconnection weights seeking a convergence criterion. The associated learning rate on weight adjustment is uniquely designed to facilitate fast learning towards convergence. The unique aspects of deep learning proposed here refer to: (i) Deducing the learning coefficient with a compatible algorithm so as to realize a fast convergence; and, (ii) the adopted sigmoidal function in the USL loop conforms to the heuristics of the so-called Langevin-Neelakanta machine. The paper describes the proposed deep ANN architecture with necessary details on structural considerations, sigmoidal selection, prescribing required learning rate and operational (training and predictive phase) routines. Results are furnished to demonstrate the performance efficacy of the test ANN.
On the critical Choquard-Kirchhoff problem on the Heisenberg group
Authors: Sun Xueqi , Song Yueqiang , Liang Sihua
Published: September 2022

In this paper, we deal with the following critical Choquard-Kirchhoff problem on the Heisenberg group of the form:

M

(

‖
u

‖

2

)

(

−

Δ

H

u
+
V
(
ξ
)
u

)

=

∫

H

N

∣
u

(

η

)

∣

Q

λ

∗

∣

η

−
1

ξ

∣

λ

d
η

∣
u

∣

Q

λ

∗

−
2

u
+
μ
f

(

ξ
,
u

)

,

M\left(\Vert u{\Vert }^{2})\left(-{\Delta }_{{\mathbb{H}}}u\left+V\left(\xi )u)=\left(\mathop{\int }\limits_{{{\mathbb{H}}}^{N}}\frac{| u\left(\eta ){| }^{{Q}_{\lambda }^{\ast }}}{| {\eta }^{-1}\xi {| }^{\lambda }}{\rm{d}}\eta \right)| u{| }^{{Q}_{\lambda }^{\ast }-2}u+\mu f\left(\xi ,u),

where

M

M

is the Kirchhoff function,

Δ

H

{\Delta }_{{\mathbb{H}}}

is the Kohn Laplacian on the Heisenberg group

H

N

{{\mathbb{H}}}^{N}

,

f

f

is a Carathéodory function,

μ
>
0

\mu \gt 0

is a parameter and

Q

λ

∗

=

2
Q
−
λ

Q
−
2

{Q}_{\lambda }^{\ast }=\frac{2Q-\lambda }{Q-2}

is the critical exponent in the sense of Hardy-Littlewood-Sobolev inequality. We first establish a new version of the concentration-compactness principle for the Choquard equation on the Heisenberg group. Then, combining with the mountain pass theorem, we obtain the existence of nontrivial solutions to the aforementioned problem in the case of nondegenerate and degenerate cases.
A micro/nano joint satellite design of high maneuverability for space debris removal
Authors: An Yuan , Chen Dan , Tai Nengjian , Zhu Jun , Zhang Ge , Zhang Qi
Published: September 2022

Ever-increasing space debris poses a great threat to spacecraft safety; its removal debuts as an innovative technology and will be in demand in the future. This article proposes a design for micro/nano joint satellites composed of four micro/nanosatellites with high maneuverability to clear space debris. The design incorporates two operating modes with typical applications, and the joint satellite features and essential key technologies are introduced. With the aim to demonstrate well-performed image data fusion and processing of the design, four cameras with different spectral and optical properties are installed for each micro/nanosatellite to acquire images and spectral characteristics for multifeatured identification of debris based on comprehensive analysis. Due to the different remote sensing payloads of the four micro/nanosatellites, the joint satellite is also capable of remote sensing. Compared with a single micro/nanosatellite, the joint satellite is more accurate for debris identification and rapid on-orbit maneuverability in addition to the superior flexibility brought by a touch-and-unfold separating removal mechanism.
Effects of KCa channels on biological behavior of trophoblasts
Authors: Zhang Xiaolei , Yang Meitao , Lv Dan , Xie Yin , Sun Yanan , Zhang Yanling , He Mengzhou , Liu Haiyi , Li Fanfan , Deng Dongrui
Published: September 2022

The Ca2+-activated potassium (KCa) channels are involved in many cellular functions, but their roles in trophoblasts are unclear. This study aimed to clarify the effects of KCa channels on the biological behavior of trophoblasts. The localization and expression of the three types of KCa channels, including large-conductance KCa channels (BKCa), intermediate-conductance KCa channels (IKCa), and small-conductance KCa channels (SKCa), were detected in human chorionic villi taken from pregnant women between 5 and 8 weeks of gestation (n = 15) and HTR-8/SVneo cells. The effects of KCa channels on proliferation, apoptosis, and migration of HTR-8/SVneo cells were examined by using the activators or inhibitors of KCa channels. Results showed that KCa channels were mainly localized on the membrane and in the cytoplasm of trophoblasts in human chorionic villi and HTR-8/SVneo cells. The proliferation and migration of HTR-8/SVneo cells were inhibited by activating KCa channels. Apoptosis of trophoblasts was promoted through activating BKCa channels but was not affected by neither activating nor inhibiting IKCa and SKCa channels. This study substantiated the abovementioned biological roles of KCa channels in trophoblast cells, which is fundamental to further research on whether dysfunction of KCa channels is involved in the pathogenesis of pregnancy-related complications.
Approximate solution of linear integral equations by Taylor ordering method: Applied mathematical approach
Authors: Ghamkhar Madiha , Wajid Laiba , Shahzad Khurrem , Safdar Rabia , Alhazmi Sharifah E. , Lashin Maha M. A. , Jamshed Wasim , Eid Mohamed R. , Alkhatib Soliman
Published: September 2022

Since obtaining an analytic solution to some mathematical and physical problems is often very difficult, academics in recent years have focused their efforts on treating these problems using numerical methods. In science and engineering, systems of integral differential equations and their solutions are extremely important. The Taylor collocation method is described as a matrix approach for solving numerically Linear Differential Equations (LDE) by using truncated Taylor series. Integral equations are used to solve problems such as radiative transmission and the oscillation of a string, membrane, or axle. Differential equations can be used to tackle oscillating difficulties. To discover approximate solutions for linear systems of integral differential equations with variable coefficients in terms of Taylor polynomials, the collocation approach, which is offered for differential and integral equation solutions, will be developed. A system of LDE will be translated into matrix equations, and a new matrix equation will be generated in terms of the Taylor coefficients matrix by employing Taylor collocation points. The needed system will be converted to a linear algebraic equation system. Finding the Taylor coefficients will lead to the Taylor series technique.
Comparing Different HWTT Analysis Methods for Asphalt Mixes Containing RAP and Correlating with MIST-TSR
Authors: Showkat Burhan , Singh Dharamveer
Published: September 2022

The use of recycled asphalt pavement (RAP) is associated with economic and environmental benefits. There is a general consensus that RAP leads to an improvement in the rutting and moisture damage resistivity of asphalt mixes. The Hamburg wheel tracking test (HWTT) is adopted to ascertain these distresses and is gaining popularity in the asphalt community. However, there is no step-by-step procedure to analyze the results of HWTT in AASHTO T324, Standard Method of Test for Hamburg Wheel-Track Testing of Compacted Asphalt Mixtures. Hence, there has been a rapid increase in number of analysis methods. A comparative study of these analysis methods is needed. At the same time, the moisture-induced stress tester (MIST) has been recently developed to quickly simulate stripping due to repeated pore pressure generation. A correlation between tensile strength ratio after MIST conditioning (M-TSR) and HWTT is warranted. In this study, asphalt concrete grade 1 mix containing 0, 10, 20, 30, and 40 % RAP by weight was designed and subjected to HWTT, MIST conditioning (varying stress cycles of 0, 1,000, 2,000, 3,500, 5,000, and 10,000), and indirect tensile (IDT) strength test. HWTT results were analyzed using eight different analysis methods viz. Iowa Department of Transportation (DOT), Oklahoma DOT, Texas DOT, third order (cubic) model and curvature, Francken model, rutting index and area, three-stage deformation model, and three-stage Weibull method. Based on results, this study recommends the Texas DOT and rutting index and area method for analyzing HWTT results. M-TSR was found to have a good correlation with HWTT moisture damage parameters except the moisture damage parameter from rutting index and area method and three-stage deformation model method.
Intelligent Control of Microwave Heating Temperature for Smart City Road Deicer Considering Ambient Temperature
Authors: Guo Meili
Published: September 2022

Snow in winter can make roads into ice, thus hindering people’s normal life travel. Therefore, in order to realize the quick deicing of roads in winter, an intelligent control method of microwave heating temperature for road deicers is proposed. The intelligent control system of microwave heating temperature was designed by analyzing the influence of ambient temperature on deicing efficiency. In terms of hardware, the structure of the microwave circuit control system is constructed by using a microwave generation system to realize the heating of ice and the measurement of temperature. Simulation results show that the method has a good effect on temperature control and improves deicing efficiency.
Off-Pump Coronary Artery Bypass Grafting with Malignant Tumor Resection Involving Different Organs: The Comparison of Long-Term Prognosis and Risk Factor Analysis Related to Survival
Authors: Zhang Yiding , Li Fei , Yang Yang , Xiao Feng , Wang Jin
Published: September 2022

Background: This study aimed to analyze the influence of the primary site of tumor location on off-pump coronary artery bypass grafting (OPCABG) surgery combined with concurrent tumor resection and to identify factors affecting long-term survival.
Methods: Fifty-seven patients with coronary artery disease (CAD) and malignancy who underwent simultaneous surgery retrospectively were enrolled. The primary site of tumor locations and cancer stage were used as a basis for grouping. The long-term survival among the subgroups was compared, and the risk factors related to survival were analyzed.
Results: The median follow-up period was 40 months. The 5-year cumulative survival rate of patients undergoing OPCABG and tumor resection was 74%. There was no significant difference in long-term survival among the four oncological location subgroups (P = 0.8), while significant difference was found among the two cancer stage subgroups (P = 0.0076). On univariable and multivariable Cox regression analysis, only cancer stage was an independent predictor of the long-term mortality rate (hazard ratio 5.42, P = 0.007).
Conclusion: For patients with potentially curable cancer and surgically correctable CAD, the safety of simultaneous surgery is confident. The primary site of tumor location does not significantly affect the long-term survival of these patients. The long-term survival rate strongly correlates with tumor stage.
ÜST SINIR İPOTEĞİ İLE KARŞILAŞTIRMALI OLARAK ANAPARA İPOTEĞİNİN SAĞLADIĞI GÜVENCENİN ALACAK BAKIMINDAN KAPSAMI
Authors: ATAR Eray Aksın
Published: September 2022

İpotek hakkı, diğer ayni haklardan farklı olarak konusunu teşkil eden eşyaya değil de aslında onun teşkil ettiği değere dayalı bir haktır. Bu nedenle güvencenin alacak bakımından kapsamının tespiti aynı zamanda ayni haklardaki belirlilik ilkesiyle yakından bağlantılıdır. Güvencenin alacak bakımından kapsamı açısından anapara ve üst sınır olmak üzere iki türlü ipoteğin söz konusu olabileceği kabul edilmektedir. Anapara ipoteğinin kapsamı TMK m. 875/I’de sınırlanmıştır. Üst sınır ipoteğinde ise bu sınırlama tapu kütüğüne tescil edilen tutardır. Üst sınır ipoteğinde kararlaştırılan ipotek bedeli, anaparanın yanı sıra yan alacakları da güvence altına alan bir üst sınır teşkil etmektedir. TMK m. 865/III, m. 867/II ve m. 876 çerçevesinde taşınmazın korunmasına yönelik önlemler için alacaklının yapmış olduğu giderler ise asıl ipoteğe ilişkin güvence kapsamında yer almamaktadır. Tescile tabi olmadan kanundan doğan bu rehin hakları ipotek hakkına bağlı olmakla birlikte ondan ayrı ve farklıdır.
MODIFICATION OF CEMENT-CONCRETE MIXTURES WITH POLYMER ADDITIVES, STRUCTURED CARBON NANOTUBES
Authors:   Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine, TRACHEVSKYI V.V. , FAINLEIB O.M. ,   Institute of macromolecular Chemistry NAS of Ukraine, 48, Kharkivske shose, Kyiv, 02160, Ukraine
Published: September 2022

The use of complex modifiers for cement-concrete mixtures and concretes is becoming increasingly popular in modern materials science. The paper presents studies of the effect of a polymer additive structured with carbon nanomaterial on the physical and mechanical characteristics of cement-concrete mixtures. IR spectroscopy and thermogravimetry revealed that the use of carbon nanomaterial significantly changes the structure of cement-concrete mixtures. As a result of the fact that high-strength nanomaterial is the center of crystallization of cement stone formations, a denser reinforced microstructure is formed, which significantly increases the strength characteristics of cement-concrete mixtures. Inclusion in the composition of cement-concrete mixtures of polymer complex additives leads to higher and longer plasticization, which plays an important role in the production of monolithic products. It is established that in the presence of a complex modifier (polymer additive structured with carbon nanotubes) the crystal structure of calcium hydrosilicates is compacted, which causes high physical and mechanical characteristics of modified cement-concrete mixtures. It is experimentally shown that the additive acts as an accelerator of hardening and hardening of cement paste, as well as increases its strength characteristics. In general, for all cement-concrete mixtures in this study there is a water-reducing effect of the additive. Water consumption decreases by 5 wt. %, while the strength increases by 19%. Formulations of cement-concrete mixtures modified with polymer additives, structured carbon nanotubes, with high performance characteristics have been developed.
MODIFICATION OF ALKYD RESINS WITH FUNCTIONALIZED DIENE LIQUID RUBBERS TO CREATE POLYMER COATINGS WITH IMPROVED PROPERTIES
Authors:   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, HUDZENKO N.V. , SYSYUK V.G. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, ZEL L.I. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, UGRO N.G. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, GRISHCHENKO V.K. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, OSTAPYUK S.M. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine
Published: September 2022

Modification of existing paints and varnishes based on alkyd and melamine alkyd resins as well as creation of new film formers with the help of functionalized oligomers in order to improve the properties of materials during their operation was carried out. Liquid oligobutadiene rubber with end hydroxyl groups, HTPB trend mark was used . Pentaphthalic varnish PF-060 and melamine-formaldehyde resin K-421-02 was modified by triisocyanate oligobutadiene rubber based on trimethylolpropane and isophorone diisocyanate resin in different ratios. Analysis of the FTIR spectra of the developed paints and varnishes showed that the process of polymerization in a thin film in air forms a spatially crosslinked polymer and passes through the stage of formation of branched soluble polymers, followed by copolymerization of components with oxygen and formation of structured solid polymer. The optimal content of rubber in the modified paints and varnishes was estimated. For alkyd varnish PF-060 it equals 10 wt.% and for melamine-formaldehyde resin K-421-02 is in the range 7-10 wt.%. Addition of triisocyanate accelerates the drying process of coatings on air, high values of surface hardness, adhesion, resistance to bending and water absorption were also received. Developed modified paints and varnishes are characterized by increased viability, shelf life of more than 6 months, homogeneity. Proposed scheme allows to obtain transparent coatings with high physical and mechanical characteristics and can be recommended for practical use in various coating technologies.
STRUCTURE, MORPHOLOGY AND ANTIMICROBIEL PROPERTIES NANOCOMPOSITES BASED ON POLYELECTROLYTE COMPLEXE AND METALIC NANOPARTICLES ARGENTUM AND CUPRUM
Authors:   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, SHTOMPEL VOLODYMYR , DEMCHENKO VALERY ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, RYABOV SERGIY ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine
Published: September 2022

Using metods of x-ray diffraction (XRD), transmission electron microscopy (TEM) and antimocrobial properties with test-bacteriums E. coli and S. aureus vere investigated nanocomposites type polymer-metal based on stoichiometric polyelectrolyte complexe (PEC) and metalic nanoparticles argentum and cuprum. Samples PEC with amorphous structure vere formated based on polyelectrolytes natural parentage: Na-carboxymethyl cellulose and β-cyclodextrin that functionalyzed amino grups. Using sorbtion by samples PEC of ions salts AgNO3 and CuSO4 , that losung in water (concentration 0,1 mole/l) vere formated samples of triples polyelectrolyte-metalic coplexes (TPMC). By using method XRD showed existence in volyme TPMC of areas (with amorphous strucrure) of fragmented macromoleculare coils of PEC (macroligande) that co-ordinated as cations Сu2+, so cations Ag+. In result of chemical reduced (using salt NaBH4) this cations transition metalі in volum TPMC, vere formed polymer– metalic nanocomposites with metal nanoparticles argentum and cuprum, what shown using metod XRD. By using metod TEM vere installed, what in nanocomposites metalic nanoparticles cuprum whose middle size 12,4 nm, whereas nanoparticles argentum – 4,3 nm. Antimicrobial tests polymer-metal nanocomposites shown, that antimicrobial properties possess nanoparticles argentum and cuprum.
INVESTIGATION OF THE ABILITY TO BIODEGRADABILITY OF POLYURETHANE FOAM COMPOSITE MATERIALS WITH ALBUCID AND THE DYNAMICS OF ALBUCID RELEASE IN VITRO
Authors:   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, VISLOHUZOVA T.V. , ROZHNOVA R.A. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, GALATENKO N.A. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine, NECHAEVA L.YU. ,   Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske Shosse, Kyiv, 02160, Ukraine
Published: September 2022

Studies of biodegradability of polyurethane foam (PUF) composite materials with albucid under the influence of biological medium 199 (BM 199) and saline solution for 2 weeks, 1, 3 and 6 months were conducted. IR spectroscopy, physical-mechanical tests, DSC and TGA before and after incubation in model mediums were investigated. It was found that the influence of BM 199 and saline solution on the structure and properties of composite materials with albucid is similar. According to the results of physical-mechanical studies under the influence of model mediums there are processes of biodegradation which are confirmed by a decrease in adhesive strength after incubation in BM 199 and saline solution. According to IR spectroscopy, biodegradation is accompanied by redistribution of hydrogen bonds of NH groups of the polymer matrix. The results of studies by the DSC method indicate a decrease of Tg and increase of ΔСР of PUF composites with albucid compared to the control, which is associated with increasing of segmental mobility of macromolecules under the influence of model mediums and due to the albucid release from polymer matrix. It was found that PUF and PUF composites with albucid in vitro remain heat-resistant materials, because after incubation in BM 199 and a saline solution there is an increase in T0 and Tmax by the TGA method. Studies of the dynamics of albucid release from the PUF matrix were carried out. It was found that the composite materials are capable to the prolonged release of the drug. The amount of released albucid is 36.0 % on the 60th day of the experiment, which does not exceed the therapeutic dose and has no toxic effects. Therefore, polyurethane foam composite materials with albucid can be proposed as promising materials for use as implants with prolonged action of albucid in ophthalmological surgery.
The effectiveness of high-intensity interval training on body composition of rodent models of obesity: A systematic review and meta-analysis
Authors: Sordi Ana Flávia , Silva Bruno Ferrari , Furlan Julia Pedrosa , Moraes Solange Marta Franzói de , Guariglia Débora Alves , Peres Sidney Barnabé
Published: September 2022

The present systematic review was compiled to analyze the effectiveness of High-intensity interval training (HIIT) protocols on the body composition of rodents with obesity. Databases were searched until February 2021 for experimental trials in rodents with a minimum duration of four weeks of HIIT and endpoints associated with obesity. The data were analyzed by meta-analysis performed for comparisons of body composition. Sensitivity analysis was performed to investigate the consistency of individual researches. Of all of the 524 studies found, only 14 were included. The analysis showed a significant reduction in body weight ([CI 95%: –8.35; –1.98] P ≤ 0.01), adiposity index ([IC 95%: –1.04; –0.80] P ≤ 0.01), and fat pads ([IC 95%: –0.59; –0.06] P ≤ 0.01). HIIT performed on treadmill or water was effective to reduce body weight (P < 0.05). In conclusion, HIIT attenuated both body weight and adiposity induced either by HFD (high-fat diet) or by GOM (genetic obese model), thereby inducing positive changes in body composition.
Introduction of a pharmacological neurovascular uncoupling model in rats based on results of mice
Authors: Varga Bence Tamás , Gáspár Attila , Ernyey Aliz Judit , Hutka Barbara , Tajti Brigitta Tekla , Zádori Zoltán Sándor , Gyertyán István
Published: September 2022

Our aim was to establish a pharmacologically induced neurovascular uncoupling (NVU) method in rats as a model of human cognitive decline. Pharmacologically induced NVU with subsequent neurological and cognitive defects was described in mice, but not in rats so far.

We used 32 male Hannover Wistar rats. NVU was induced by intraperitoneal administration of a pharmacological “cocktail” consisting of N-(methylsulfonyl)-2-(2-propynyloxy)-benzenehexanamide (MSPPOH, a specific inhibitor of epoxyeicosatrienoic acid-producing epoxidases, 5 mg kg−1), L-NG-nitroarginine methyl ester (L-NAME, a nitric oxide synthase inhibitor, 10 mg kg−1) and indomethacin (a nonselective inhibitor of cyclooxygenases, 1 mg kg−1) and injected twice daily for 8 consecutive days.

Cognitive performance was tested in the Morris water-maze and fear-conditioning assays. We also monitored blood pressure. In a terminal operation a laser Doppler probe was used to detect changes in blood-flow (CBF) in the barrel cortex while the contralateral whisker pad was stimulated. Brain and small intestine tissue samples were collected post mortem and examined for prostaglandin E2 (PGE2) level.

Animals treated with the “cocktail” showed no impairment in their performance in any of the cognitive tasks. They had higher blood pressure and showed cca. 50% decrease in CBF. Intestinal bleeding and ulcers were found in some animals with significantly decreased levels of PGE2 in the brain and small intestine.

Although we could evoke NVU by the applied mixture of pharmacons, it also induced adverse side effects such as hypertension and intestinal malformations while the treatment did not cause cognitive impairment. Thus, further refinements are still required for the development of an applicable model.