bluuebunny/crossref_metadata_2025 huggingface dataset:
The Refugee Issue in the Greek, German, and British Press During the Covid-19 Pandemic
Authors: Fotopoulos Nikos , Masini Andrea , Fotopoulos Stergios
Published: May 2022

The media hold an essential role in circulating information, disseminating knowledge, constructing representations, shaping ideologies, and influencing contemporary societies. Since the outburst of the coronavirus (Covid-19) pandemic, their attention has been mostly paid to the protection and the health situation of citizens worldwide. Although millions of refugees are also exposed to a new risk with their vulnerable position being deteriorated, the refugee issue in the context of the Covid-19 pandemic seems to have been downgraded. In this regard, the current article explores to what extent the refugee issue was salient in the Greek, German, and British press during the pandemic. At the same time, it looks at how the media outlets in all three countries addressed it, focusing on the key topics reported and the interpretive schemata of the pertinent coverage. We use a qualitative content analysis, examining a sample of newspaper articles that were published between 1 January 2021 and 1 May 2021. The results presented by this article suggest that the epidemiological developments or other health aspects related to local populations seem to overshadow the situation of refugees. Yet, media outlets mostly perceive refugees as victims of the pandemic, underlining their vulnerability and marginalisation in health, economic, and education terms. The findings seek to feed the public discussion, providing a fruitful approach to the media narratives and representations of refugees during the Covid-19 crisis.
Participation of Ukrainian Military of the Russian Army in Mass Revolutionary Events in Kyiv (March 1917)
Authors:   Taras Shevchenko National University of Kyiv, Savchenko Grygorii
Published: May 2022

The article examines the unfolding of the revolutionary events in Kyiv in March 1917. The participation of Ukrainian combatants in mass revolutionary events is considered in the context of the emergence of the Ukrainian military movement in the Russian army. Military Ukrainians were active organizers and participants in demonstrations, assemblies and meetings held in the city at the beginning of the Ukrainian Revolution of 1917–1921. The influence of military participation in mass events on the formation of their national identity is analyzed. The actions promoted the idea of the national-territorial autonomy of Ukraine among the military. It is determined that gaining national-territorial autonomy of Ukraine was one of the main demands at the meetings. The result of the mass events was the creation of governing bodies by the Ukrainian military movement, which led to its greater organization and determination. Ukrainians began to form national military units under the influence of mass events. In March 1917 the creation of the Bohdan Khmelnytsky Regiment began. The issues of forming a military unit were constantly discussed by Ukrainians at their meetings. They tried to involve the Kyiv Military. District Command in mass events and hoped for its help. Attention is drawn to the influence of the Polish military on the emergence of the Ukrainian military movement. It is concluded that the participation of the Ukrainian military in mass events in Kyiv gave impetus to the deployment of the Ukrainian military movement at the front and in the rear of the Russian army.
Russification Policy in Ukraine as a Means of Cultural Assimilation: Historical Dimension
Authors:   Hryhorii Skovoroda University in Pereiaslav, Tarapon Oksana , Potapenko Ruslana ,   Hryhorii Skovoroda University in Pereiaslav
Published: May 2022

The article considers the historical dimension of the policy of Russification, as a means of cultural assimilation, conducted by the Russian authorities in Ukraine from the time of the Russian Empire until the end of the USSR. If in the conditions of the Russian Empire the authorities resorted to strict bans on the Ukrainian language, as a means of destroying national identity, then, under Soviet rule, bet was made on the implementation of Lenin’s national policy, according to which literacy was seen as a tool for spreading state ideology. In the context of the political course of «perestroika» Russification processes continued in the form of a policy of bilingualism, stimulation of the Russian language in educational and scientific institutions. At the same time against the background of socio-political changes in «perestroika» the processes of national revival intensified, struggle for the Ukrainian language, which led to the adoption of the Law on Languages and the expansion of its scope. This hindered the implementation of the policy of full assimilation of Ukraine and initiated state-building processes. But, consequences of assimilation Russification policy in Ukraine still not overcome, which is especially evident in the regional dimension and creates favorable conditions for the implementation of hybrid warfare by the Russian Federation.
Ethnic Factors in the Formation of the Belarusian People and Nation. Review of Anatoly Ostapenko’s monograph «The Role of Ethnic Factors and Modern Processes in the Formation of the Belarusian Nation. Minsk: BIP, 2020. – 373 p.»
Authors:   Taras Shevchenko National University of Kyiv, Konta Rostyslav
Published: May 2022

Anatoly Ostapenko’s monograph «The Role of Ethnic Factors and Modern Processes in the Formation of the Belarusian Nation»” is reviewed. It is noted that the monograph is devoted to a topical and little-studied problem in historical science. It is emphasized that the sections of the reviewed monograph contain valuable analytical and critical material concerning the origins and time of formation of the Belarusian ethnos, the evolution of the religious worldview of Belarusians, the formation of the Belarusian nation and Belarusian statehood, the mentality of Belarusians and Belarusian identity. It is concluded that the peer-reviewed monograph will occupy a worthy place not only in the scientific achievements in the field of ethnological science, but also in historical science in general.
Review of the Book (Popular Science Publication) by A. Halushka, E. Brailyan «Conspiracy of Dictators. The Division of Europe. Between Hitler and Stalin. 1939–1941. Kharkiv: Klub simeinoho dozvillia, 2019. – 368 p.»
Authors:   Klaipėda University, Petryk Artem
Published: May 2022

The book «Conspiracy of dictators. The division of Europe between Hitler and Stalin 1939–1941», co-authored by A. Halushka and E. Brailyan, is reviewed. This publication is popular science and is designed for a wide range of readers interested in the history of World War II. The publication reflects in detail, in a popular style, such segments as the political and economic situation in the world in the period between the world wars; creation of a military situation and escalation of conflict on the eve of World War II; the course of military operations in the first two years of the global confrontation (1939–1941), using the principle of parallel coverage of the aggressive actions of the Nazi and communist regimes from the moment of concluding the Molotov-Ribbentrop Pact to the beginning of the implementation of the «Barbarossa» Plan. A detailed description of the military-tactical component of the main combat operations within the chronology stated by the authors is noted, among them the aggression of two dictatorships against Poland (September – October 1939), the Soviet-Finnish War (December 1939 – March 1940), the French campaign (May – June 1940), and the Battle of Britain (July – October 1940) and others. Emphasis is placed on the availability of a detailed description of the operations of the warring parties in the African, Mediterranean and Middle Eastern theaters of operations, including the coverage of independent operations of the Italian armed forces. In the presence of qualitatively presented factual material and photos in symbiosis with the relevance of such Ukrainian-language content, a conclusion was made about the success of the selected issues and prospects for further work, taking into account a wide target audience.
Pengembangan Permainan Modifikasi Aktivitas Lari Jarak Pendek dalam Pembelajaran Atletik di SMK Negeri 1 Batu
Authors: Aslam Farid Soni , Heynoek Febrita Paulina , Fitriady Gema
Published: May 2022

Abstract: The purpose of this development research is to develop a game modification for short distance running activities in athletic learning which is packaged in the form of a video. The method used in this research is a procedural model that refers to the research and development development model of Borg and Gall. The data analysis technique used is descriptive with a percentage. The validation results from the experts, namely: 80 percent athletic learning, 80 percent game modification, and 92.85 percent learning media can be used without improvement. From small group trials of students with a total of 85.2 percent and, as well as large group trials of students totaling 88.51 percent, it can be used without any improvement.

Abstrak: Tujuan dari penelitian pengembangan ini adalah untuk mengembangkan modifikasi permainan aktivitas lari jarak pendek dalam pembelajaran atletik yang dikemas dalam bentuk video. Metode yang digunakan dalam penelitian ini adalah model prosedural mengacu kepada model pengembangan research and development Borg and Gall. Teknik menganalisis data yang digunakan yaitu deskriptif persentase. Hasil validasi dari para ahli, yaitu: pembelajaran atletik 80 persen, modifikasi permainan 80 persen, dan media pembelajaran 92,85 persen dapat digunakan tanpa perbaikan. Dari uji coba kelompok kecil peserta didik dengan jumlah 85,2 persen dan, serta uji kelompok peserta didik (besar) berjumlah 88,51 persen dapat digunakan tanpa adanya perbaikan.
Tanggapan Pemain tentang Program Latihan Mandiri saat Pandemi Covid-19 di Club Sepakbola IKC Usia Remaja Kota Batu
Authors: Almaghfuri Mochammad Tantowi , Nurrochmah Siti
Published: May 2022

Abstract: The purpose of this study was to examine and obtain information regarding player responses to independent training programs during the covid-19 pandemic for teenage players at the Batu City IKC football club. The population and the sample are teenagers at the IKC Batu City football club, which amount to 53 people. This study used a survey design in the form of quantitative descriptive research and the approach used was in the form of a questionnaire and used quantitative descriptive statistical data analysis techniques. The results of the analysis obtained an average of 88.68 percent potential aspect, 94.34 percent activity aspect, and 85.85 percent evaluation aspect. The conclusion of the research results on (a) the dominant potential aspect of the respondents stated that an independent training program needs to be carried out during the covid-19 pandemic to maintain physical condition, basic skill techniques and ball feeling for each athlete; (b) the dominant activity aspect of the respondent stated that the independent training program provided was very varied and innovative so that the players were enthusiastic in participating in the given exercise; (c) the dominant evaluation aspect of the players stated that the players were happy with the independent training program and the independent training program needed to be held during the covid-19 pandemic.

Abstrak: Tujuan dari penelitian ini adalah mengkaji dan memperoleh informasi mengenai tanggapan pemain tentang program latihan mandiri pada saat pandemi covid-19 pada pemain usia remaja di club sepakbola IKC Kota Batu. Populasi dan sampel adalah usia remaja di club sepakbola IKC Kota Batu yang berjumlah 53 orang. Penelitian ini menggunakan rancangan survei dalam bentuk penelitian deskriptif kuantitatif dan pendekatan yang digunakan berbentuk angket serta menggunakan teknik analisis data statistika deskriptif kuantitatif. Hasil analisis diperoleh rata-rata pada aspek potensi 88.68 persen, aspek kegiatan 94.34 persen, dan aspek evaluasi 85.85 persen. Kesimpulan hasil penelitian tanggapan responden pada (a) aspek potensi dominan responden menyatakan bahwa program latihan mandiri perlu dilaksanakan saat pandemi covid-19 untuk menjaga kondisi fisik, teknik keterampilan dasar dan ball feeling pada setiap atlet; (b) aspek kegiatan dominan responden menyatakan bahwa program latihan mandiri yang diberikan sangat variatif dan inovatif sehingga pemain semangat dalam mengikuti latihan yang di berikan; (c) aspek evaluasi dominan pemain menyatakan bahwa pemain merasa senang dengan adanya program latihan mandiri dan program latihan mandiri perlu diadakan saat pandemi covid-19.
Performance Assessment of Indian Electric Distribution Utilities Using Data Envelopment Analysis (DEA)
Authors:   School of Electrical and Communication Engineering, Dr.Sagunthala R&D Institute of Science and Technology, Chennai, India, Ramaiah V. , Jayasankar V.
Published: May 2022

One of the most important links in the electricity market is the electricity distribution sector as it involves interfacing the end customers and providing the revenue that is required for running the entire chain of the electricity sector. Besides, it provides power to the individual consumers at relatively lower voltages by absorbing high voltage power from the transmission sector and involves revenue collection from the consumer sector. The primary aim of the distribution sector, as stated by the Provisions of Tariff policy, Government of India, 2016, is to provide reliable, quality and sustainable power at reasonable rates. Despite the restructuring of Indian Power Sector post implementation of Electricity Act 2003, the electricity distribution utilities, in the recent past, are experiencing poor financial results irrespective of their ownership (public, private or joint sector). This has been attributed to various factors related to economic, environmental, physical, social and technical streams related to the operation of the utilities. The performance of these electricity distribution utilities can be assessed using Data Envelopment Analysis (DEA) tool which is extensively used in the recent past by the researchers to analyze the performance of entities of other sectors. The successful employment of DEA for evaluating the electricity distribution utilities lies with the proper selection of input and output variables that are chosen for the analysis. The current work analyzes the relative comparative performance of electricity distribution utilities across India and identifies inefficient utilities besides providing peers/reference, slack analysis for effective strategic improvement.
Rekonstruksi Pengaturan Pertanggungjawaban Pidana Pihak yang Menggunakan Dokumen Palsu
Authors: Rifai Anis
Published: May 2022

Pemalsuan dan penggunaan dokumen palsu merupakan salah satu tindak pidana yang diatur dalam Kitab Undang-Undang Hukum Pidana. Khusus pemalsuan surat diatur dalam Pasal 263 dan Pasal 264 Kitab Undang-Undang Hukum Pidana dengan ancaman pidana penjara selama 6 (enam) tahun. Kadangkala seseorang yang menggunakan dokumen palsu tersebut tidak mengetahui keaslian dari dokumen tersebut. Hal inilah yang membuat dilematis aparat penegak hukum untuk menentukan perbuatan tersebut termasuk pidana atau tidak. Metode penelitian yang digunakan adalah penelitian hukum normatif yaitu penelitian dilakukan dengan menganalisis peraturan perundang-undangan   yang   berlaku. Dari penelitian yang dilakukan, disimpulkan bahwa dalam pengaturan hukum positif di Indonesia, tidak adanya perbedaan pertanggungjawaban pidana terhadap pihak yang menggunakan dokumen palsu yang memang mengetahui dokumen tersebut palsu dan pihak yang memang tidak mengetahui dokumen tersebut palsu. Rekonstruksi pertanggungjawaban pidana perlu dipertimbangkan terutama berkaitan dengan aspek mens rea dan actus reus dalam penentuan kesalahan pelaku tindak pidana. Dengan demikian pihak yang menggunakan dokumen palsu dan tidak mengetahui dokumen tersebut palsu seharusnya tidak perlu dimintai pertanggungjawaban pidana karena tidak adanya mens rea dan actus reus dalam perbuatannya.
Pelecehan Seksual terhadap Korban ditinjau dari Permendikbud Nomor 30 Tahun 2021
Authors: Virgistasari Aulia , Irawan Anang Dony
Published: May 2022

Sexual harassment is an abuse of power from male sexuality, so that harassment can occur because it starts from a position that places the throne of men higher than women, crimes against women often experience unfair treatment and violations of their rights. This sexual crime does not only take place in the private room, the family environment, the playing environment, the office environment, or the company. But it can also happen in a college environment. The formulation of the problem in this paper is first, whether victims of sexual harassment in a university environment can get legal protection. And second, what is the form of legal protection for victims of sexual harassment in universities. The purpose of the study was to find out how the legal protection of victims of sexual harassment in the university environment is and also to analyze the forms of legal protection that are reviewed in Permendikbud Number 30 of 2021. The research method used is normative juridical research. With the presence of Permendikbud Number 30 of 2021, there is no longer any reason for universities not to prevent and handle sexual violence. The reason for the issuance of this regulation is because the cases of sexual harassment in universities are becoming more and more disturbing. If sexual harassment is not prevented then what will be the fate of human civilization, because the source of its civilization itself is not given protection and handling, how can justice be fully served if the victims of these crimes are instead blamed.
GAS Distribution Protocol for Permissioned-Public Ethereum-Based Blockchain Networks
Authors: Allende López Marcos , Pareja Adrián
Published: May 2022

his paper presents a protocol to manage decentralized access and use of Permissioned Public Blockchain Networks using Ethereum technology as the underlying protocol. It proposes a solution to avoid DDOS and enforce accountability while eliminating transaction fees. The protocol has been tested and implemented in the LACChain Blockchain Networks.
Performance Evaluation of SDN DDoS Attack Detection and Mitigation Based Random Forest and K-Nearest Neighbors Machine Learning Algorithms
Authors: Mohsin Mayadah A. , Hamad Ali H.
Published: May 2022

Software-defined networks (SDN) have a centralized control architecture that makes them a tempting target for cyber attackers. One of the major threats is distributed denial of service (DDoS) attacks. It aims to exhaust network resources to make its services unavailable to legitimate users. DDoS attack detection based on machine learning algorithms is considered one of the most used techniques in SDN security. In this paper, four machine learning techniques (Random Forest, K-nearest neighbors, Naive Bayes, and Logistic Regression) have been tested to detect DDoS attacks. Also, a mitigation technique has been used to eliminate the attack effect on SDN. RF and KNN were selected because of their high accuracy results. Three types of network topology have been generated to observe the effectiveness of proposed algorithms on different network architectures. The results reveal that RF performs better than KNN in a single topology, and both have close performance in other topologies.
Semantics Convolutional Neural Network for Medical Images Analysis
Authors: Taouli Amina , Bensaber Djamel Amar , Bencherif Khayra , Keskes Nabil
Published: May 2022

Big Data Analysis is a solution that makes it possible to extract valuable information from the mass of data by using deep learning algorithms and especially the Convolutional Neural Network algorithm. In this article, we have proposed an approach that allows the addition of the semantic aspect in the classification layer of the Convolutional Neural Network algorithm. The proposed approach helps medical professionals to develop an automatic system for identifying various classes of lung cancers. First, the input data are processed to reduce the search space, and the image noise, and normalize data. Then, the preprocessed data are analyzed to reduce image space by preserving all important features. After that, the semantic memory method converts the feature vectors from the analysis layer into semantic feature vectors. Finally, the last layer classifies the input image into two classes. We evaluate our approach using the LUNA16 dataset. Our study led to better results and predictions by reducing false negatives and positives using the Semantic Convolutional Neural Network algorithm. In our approach, cancer tissues can be identified with a maximum of 97.27% for accuracy and 99.46% for AUC. This model has increased efficiency compared with state-of-the-art approaches.
Crafts: Between Archetype and Marketing
Authors: Noworol Czesław , Bondyra Krzysztof , Dziekanowska Małgorzata
Published: May 2022

Contemporary craft has gone beyond the pre-industrial stage in terms of technology, transforming into a service sector as well as small and medium industry. Not only does it bring together many of the most technologically and organizationally advanced enterprises, but it also refers to traditional, “craft” ways of production or design. Also, handicrafts and artistic crafts constitute a segment of craft activities. It plays a significant role in modernization and modification of the existing cultural systems by making a more or less conscious selection of elements belonging to both orders defined as traditional and modern. At the same time, craft supplies many reasons to appreciate its contribution to economic and social development. It provides jobs, it is creative and innovative, offering high quality products and services to customers.

The aim of the article is to attempt to look at the topic of crafts from a historical and comparative point of view and to fill the cognitive gap by systematizing various concepts of the functioning of crafts. An attempt was made to organize the ways of defining crafts in various countries by characterizing the hitorical, religious and cultural-social dimensions. Then, the marketing potential of crafts, manifested by a large-scale consumer interest in a diversified offer of crafts, was analyzed.
The Moderating Role of Emotion Regulation in Relationship Between Narcissism and Cyberbullying
Authors: Ćwieluch Paulina , Błachnio Agata
Published: May 2022

Along with the growing role of new technological solutions, we are becoming more and more exposed to the negative consequences of electronic forms of contact. Therefore, the aim of the study was to investigate the relationship between cyberbullying, both from the perpetrators’ and victims’ perspectives, and emotion regulation strategies and narcissism. It was hypothesized that cyberbullying correlates positively with emotion suppression and narcissistic rivalry and negatively with cognitive reappraisal and narcissistic admiration. Within cybervictimization, a positive relationship was predicted with emotion suppression and narcissistic rivalry, and a negative relationship with narcissistic admiration. Additionally, a model assuming moderation of emotion regulation strategies in the relationship between cyberbullying perpetration and narcissistic rivalry was analyzed. Students aged 19–26 years (N = 208, 49.5% female) participated in the study and completed the following online questionnaires: the Emotion Regulation Questionnaire, the European Cyberbullying Intervention Project Questionnaire, and the Narcissistic Admiration and Rivalry Questionnaire. The results indicated that cybervictimization was positively related to emotion suppression, and that narcissistic rivalry was positively related to cyberbullying and cybervictimization. The tested model of moderation was not validated for both emotion regulation strategies. The results of the research have practical implications and confirm the need for further research in this field.
Guía para el diseño de sitios web de instituciones de educación superior basado en el estándar WCAG 2.1 aplicado a discapacidades visuales
Authors: Vejarano Sánchez Luis Alfonso , Gutiérrez Idrobo Daniela Iboth , Camacho Ojeda Marta Cecilia , Gómez-Jaramillo Sebastián
Published: May 2022

Este trabajo presenta el desarrollo de una guía para el diseño de sitios web de Instituciones de Educación Superior (IES) basada en el estándar WCAG 2.1 aplicado a discapacidades visuales. Para ello se identificaron propuestas que orientan el diseño de sitios web accesibles de IES. A partir de los hallazgos y del estándar WCAG 2.1 se especificó una guía que facilite el diseño de sitios web de IES aplicada a discapacidades visuales, después se evaluó el nivel de conformidad obtenido por el sitio web de Univida al aplicar la guía propuesta. Como método de evaluación, se utilizó la herramienta en línea TAW. Los resultados muestran que en las propuestas analizadas se enfocan en evaluar la accesibilidad de los sitios web; sin embargo, ninguna de ellas se orienta específicamente a webmasters, desarrolladores y diseñadores web, ni se enfocan en el diseño de sitios web de ies para personas con discapacidad visual. También se evidenció que, al aplicar la guía en el sitio web seleccionado, de un total de 433 errores en el primer análisis se logró disminuir a 14 en un segundo análisis para los niveles de conformidad A, AA y AAA. Este trabajo permite concluir que existe un creciente interés en investigadores e instituciones de educación superior de diseñar sitios web institucionales y plataformas virtuales de aprendizaje inclusivos, que no solo consideren las necesidades de información y el impacto atractivo de su diseño, sino también un enfoque hacia la población con discapacidad.
A conversão semiótica da Ilha do Combu: representações e ressignificações estéticas da Amazônia no Instagram
Authors: Oliveira Ivana Cláudia Guimarães de , Teixeira Lucilinda Ribeiro , Costa Alda Cristina Silva da , Borges Diego Duarte
Published: May 2022

Neste artigo, analisamos a ressignificação ou recriação dos signos na compreensão da Ilha do Combu, localizada na região metropolitana de Belém. Tomamos como visada teórica e metodológica a conversão semiótica do pesquisador Paes Loureiro (2007) que se configura em um movimento de passagem pelo qual as funções se reordenam e se exprimem numa outra situação cultural. Nosso corpus de análise são as imagens fotográficas de 2019, período pré-pandêmico, postadas nas hashtags #ilhadocombu e #combu no aplicativo Instagram. Observamos que os indivíduos que visitam ou experienciam esse espaço amazônico convertem a ilha de rio num outro de si mesmo, num ambiente em que a natureza é incorporada como imaginário. Os novos sentidos são dados conforme os indivíduos cenarizam o espaço e suas vidas, em que a tecnologia passa a ressignificar os signos culturais.
Crisis Management in the Brazilian Franchising Sector During the Covid-19 Pandemic
Authors: Rocha Thelma Valéria , Bretas Vanessa P. G. , Fonseca Márcio , Pizani Cássia Aparecida , Yojo Angela Satiko
Published: May 2022

Objective: The objective of the article is to analyse the effects of the Covid-19 pandemic on the Brazilian franchise sector and to identify the main strategies adopted by companies to mitigate the negative impacts of the crisis.Method: The empirical research, using qualitative exploratory methods, was based on three in-depth interviews with franchising sector stakeholders, in addition to the thematic analysis of six webinars promoted by the ABF from April 15 to 28, 2020.Findings: Findings show that franchise chains had to rethink their relationships with various stakeholders such as customers, employees, suppliers, and the government. Besides, franchisors developed alternative sales channels such as websites, social networks, among others. Additionally, what sustained those companies during the crisis was their connection with their purpose.Relevance: This study presents contributions to other companies in a similar situation by exploring the actions taken by the franchise chains during the crisis and identifying the best practices and paths taken.Contribution: This article contributes to investigations on the effects of the Covid-19 public health crisis in the franchising sector, one of the most relevant economic sectors.
DETERMINATION OF THE PLACE OF CONTACT AND THE SIZE OF THE ROLLING SURFACE OF THE WHEEL RIM ALONG THE RAIL HEAD OF THE INNER THREAD OF THE CURVED SECTION IN THE PROCESS OF LATERAL PRESSURE OF THE TRACK
Authors: Novikov Vadym , Babenko Andriy , Korniienko Viktoriia
Published: May 2022

In widespread sources the results of calculations of the sizes of contact planes of anellipse form at interaction of locomotive wheels with rails of type P65 which small axes make 5-10mm depending on loading taking into account dynamic influence are resulted. These data do notcorrespond to the purpose and objectives of this study, which is to determine the size of the half-axisof the contact plane under vertical load on the head of the rail thread in the range from 100 kN to180 kN, when the wheel of the freight car rests on a bevel a wheel having a conicity of 1:10, with awheel radius r1 = 475 mm and a rolling surface radius of the rail head r2 = 80 mm. The size of thecontact plane of support of the rim of the wheel of a freight car on the surface of the head of the railtype P65 is determined in the work. The calculations were performed on the basis of preliminarydetermination of the location of the mathematical point of contact on the box curve, which outlinesthe surface of the rail head in cross section under deterministic conditions of pressing intermediaterail fasteners of separate type under the action of outstanding accelerations for freight -0.3 m / s2.The purpose of the calculations is to obtain the practical value of the maximum dangerous width ofthe rail track, which corresponds to the conditions of track expansion at vertical wheel load on therail 140 kN and at maximum spacing forces that provide the highest values of lateral displacementsrail thread with a surface adjacent to the chamfer of the wheel rim. Based on calculations by the Hertz-Bilyaev method, it was obtained that the average value of the contact strip of the rail and therim of the wheel of a freight car, at a vertical load P = 140 kN, is: b = 3.2 mm, so b / 2 = 1.6 mm.But if you round to the accuracy of measuring the width of the rail track - b / 2 = 1.6 mm.
EXPERIMENTAL STUDIES OF TRACK STRENGTH USING DIFFERENT TYPES OF FASTENING
Authors: Boyko Volodymyr , Potapov Dmytro , Demchenko Volodymyr , Molchanov Vitaliy , Demchenko Oleksii
Published: May 2022

Experimental and theoretical researches of influence of a condition of a profile of asurface of rolling of a wheel pair on level of horizontal cross forces of interaction between elementsof a rail track and a rolling stock in operation on the railways of Ukraine are carried out. We havefurther developed approaches to modeling the effect of different types of fasteners on track stability,as the rigidity of the rail thread is directly related to the design of subrail supports and rail fasteners.The main task of experimental research was to establish the actual state of the elements ofintermediate fasteners and reinforced concrete sleepers, finding the maximum resistance of the railto longitudinal movement, which are provided by fasteners under different operating conditions.Experimental studies of the elastic characteristics of the horizontal longitudinal characteristics of therigidity of rail threads were performed, the studies were performed at different times of the year.Experimental studies of transverse deformations of rail threads on the head and sole of the rails madeit possible to determine the exact characteristics of the horizontal lateral stiffness of rail threads forrails type P65 with different types of fasteners. The main experimental studies were conducted on aseamless track within the main sections of the railway. The elements of the intermediate rail fasteningduring operation are subjected to constant dynamic impact in the process of which there are residualdeformations.Based on the obtained data, calculations were performed to determine the horizontal lateralmodulus of elasticity of the railway track, to determine the longitudinal and transverse stability ofrail threads depending on the type of fastening. The obtained experimental and theoretical resultsallow to evaluate the force interaction of the rail track with the rolling stock.
THEORETICAL STUDIES OF THE POSSIBILITY OF OPERATING AN INTERMEDIATE RAIL FASTENING OF THE KPP-5 TYPE ON PROMISING SECTIONS OF UKRAINIAN RAILWAYS, WHERE IT IS PLANNED TO INTRODUCE HIGH-SPEED TRAFFIC
Authors: Potapov Dmytro , Vitolberg Volodymyr , Boyko Volodymyr , Novikov Vadym
Published: May 2022

The introduction of high-speed traffic in the railways of Ukraine is one of the priorityareas of development of the domestic railway industry. Foreign experience in the operation of highspeed and high-speed lines has a positive impact on the overall economic performance of thesecountries by increasing the mobility of means of production and human resources. In addition,increasing speeds requires the introduction of new types of rolling stock and railway structures withunconditional provision of the required level of safety. This is possible only through a comprehensiveapproach to these issues, both through experimental tests and theoretical calculations. This studytheoretically assessed the possibility of operating intermediate rail fasteners type KPP-5 Ukrainianproduction in areas where in the medium term, it is planned to increase speeds, i.e. to reach a levelof more than 160 km/h. To achieve this goal, multivariate calculations were performed to determinethe stress state that penetrates the elements of the railway track under the action of rolling stock.Four types of high-speed locomotives and electric trains, which have been operated on the railwaylines of the European Union for a long time, were selected as units of account in the study. For alltypes of rolling stock (locomotives and high-speed electric trains) for which calculations wereperformed, the obtained values of stresses acting in the elements of the railway track do not exceedthe allowable. That is, in terms of strength, intermediate rail fasteners type KPP-5 Ukrainianproduction can be operated in straight sections at speeds over 160 km / h with heat-treated rails typeR65 on reinforced concrete sleepers with laying diagram 1840 pcs / km with gravel ballast 40 cmthick. Analytical comparison of the level of stresses arising in the railway track elements in lines withintermediate rail fastening type KPP-5 made in Ukraine and the W30 rail fastening systemmanufactured by Vossloh showed approximately the same level of stress in the railway track elements.However, it should be noted that the above conclusions are only theoretical in nature and for thefinal determination of the possibility of operation of the intermediate rail fastening type KPP-5 inreal conditions (at speeds greater than 160 km / h) requires additional experimental studies.
ANALYSIS OF THE INFLUENCE OF VOLTAGE ASYMMETRY ON THE OPERATION OF THE TRACTION ASYNCHRONOUS ELECTRIC MOTOR USING THE SIMULATION MODEL
Authors: Panchenko Vladyslav , Turenko Oleksandr
Published: May 2022

The asymmetry of the supply voltage adversely affects the operation of electricmotors, in particular induction ones. With an uneven load of the phases of the network, the voltagebecomes asymmetric - unequal between the individual phases. Voltage asymmetry leads to the factthat the currents in the phases of the stator winding of the electric motor differ sharply from oneanother. A phase with a high current can overheat above acceptable limits even with a small voltageunbalance. In addition, the active steel of the motor rotor overheats. Overheating of the motorwinding causes an increase in electrical losses, ripples of the electromagnetic torque also appear,and other negative consequences. These factors can lead to process failure, accelerated insulationaging, or even motor failure.In the event of a mains phase failure, running three-phase motors switch to single-phase mode.If the motor load before phase failure was no more than 60% of the rated value, then the motorcontinues to operate with slightly worse energy performance, the rotor speed decreases slightly, thewinding temperature is within acceptable limits. Under heavy loads, the motor winding overheatsexcessively, and in some cases the motor rotor stops and a large current flows through two phases ofthe stator winding. After stopping the engine, it cannot be started even at idle, since a pulsatingmagnetic field is obtained in the engine with a single-phase current.To study the effect of supply voltage asymmetry on the operation of an asynchronous electricmotor, simulation modeling was carried out in the ANSYS Electronics software package for directstart of induction motor with the introduction of a supply voltage asymmetry of one of the phases ata level of 4% in the steady state operation of the electric motor. The characteristics of the rotationfrequency and electromagnetic torque were obtained with asymmetry of the supply voltage and acomparison was made with the symmetrical mode of operation of the electric motor. The results ofsimulation show a slight change in the frequency of rotation of the rotor of the electric motor,however, there are significant ripples of the electromagnetic torque.
Circular Economy - The Way to Survive in a Post-pandemic Situation
Authors:   Ivane Javakhishvili, Tbilisi State University, Tbilisi, Georgia, Baiashvili Beka
Published: May 2022

The crisis caused by coronavirus has hit the world economy and business sector particularly hard. The recovery process after this crisis will not be easy. The circular economy has become one of the most crucial discussion topics globally. It can help countries overcome the emerging economic problem caused by the coronavirus pandemic. The circular economy is a production and consumption model which involves sharing,leasing, reusing, repairing, refurbishing and recycling existing materials and products for as long as possible, thus extending the lifecycle of products. According to preliminary estimates, the circular economy could create 700,000 jobs in the EU by 2030 and increase GDP by billions of dollars. In order to implement the circular economy, the joint involvement of the private and public sectors is vital to achieving a positive synergistic effect. This paper discusses why the circular economy is essential because it is facing global climate change and what steps should be implemented. At the same time, it can create the opportunity for rapid economic recovery in the post-crisis period. Additionally, how can this approach contribute to economic recovery and business revival in a post-pandemic situation, and what role do political decision-makers play in implementing the circular economy.
Ranking of the Sustainability Goals (SDGs) Based on Individual Preferences
Authors:   Budapest Business School, Budapest, Hungary, Kolnhofer-DerecskeI Anita , Hauber György ,   Budapest Business School, Budapest, Hungary
Published: May 2022

Aligned with the three pillars of the sustainability model (social, economic and environmental aspects), the United Nations has declared 17 Sustainable Development Goals to promote sustainability development steps by all countries. These goals are for everyone; our environment requires active voluntary action from all of us. These sound like extremely important, crucial and urgent world-changing issues that will require cooperation among governments, international organisations and world leaders. It might seem impossible that the average person can make an effort or have any impact, especially in these extraordinary pandemic times. This study aims to discover subjects’ opinions and preferences on the SDG. Additionally, time and budget allocations are observed among the goals. The results provide a deeper insight into individual can-do attitudes. While voluntary and environment-friendly measures are also considered as core values. However, the question is whether economics or the environment will be underlined. This paper focuses on individual actions and beliefs. The aim of the research is to discover how and what people are ready to do for a better environment in the post-COVID era. Based on the results, an action plan can be stated that supports the achievement of as many of the SDGs as possible.
Sustainability Accounting and Reporting in the Post-COVID Times
Authors:   University of Sopron, Alexandre Lamfalussy Faculty of Economics, Sopron, Hungary, Szóka Károly
Published: May 2022

Sustainability is a complex framework for companies to meet environmental, social and governance (ESG) goals together. The focus should be on achieving medium- and longterm goals, and the environmental and social impacts of corporate operations should also be examined. Sustainable accounting and green controlling are the support of the management of a sustainably managed company, which means the accountability of the management on the one hand, and the applicable asset system and reporting on the other. Following and reporting on sustainability goals is no longer a voluntary commitment for companies, rather it is compulsory for them to adapt. With effect from 2024, the EU standard on ‘non-financial reporting standards’ will come into force. The development of this EU investment classification system, known as the ‘taxonomy’, is being monitored by investors worldwide. The taxonomy, standards and implementation will certainly generate controversy. In this study, the author describes the importance, essence and content of sustainability accounting and green controlling, as well as the reporting obligation and its tools. The author also clarifies which parameters define the mandatory reporting framework and which are the most important elements.
The Numerous Challenges of the Post-COVID Economy
Authors:   Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia, Gagnidze Ineza
Published: May 2022

The COVID-19 pandemic has caused unprecedented health and economic crises around the world. It has amplified preexisting inequalities and exclusions, both within and between countries and communities. Moreover, the global pandemic has added to the challenges of the digital era, such as emerging and declining jobs, remote working, necessary reskilling and upskilling. Consequently, the number of interrelated problems has doubled. As countries continue to grapple with COVID-19 and navigate the economic fallout, well-designed green stimulus packages can support near-term recovery and enable longer-term power system resilience against future threats. Such a ‘green’ recovery is often defined in opposition to ‘grey’ and ‘colourless’ recovery policies. As over one third of the world’s population lives within 100 kilometres of an ocean, the notion of a ‘blue’ recovery is equally important. In a world driven by uncertainty and change, it is essential to find tools that can mitigate potential challenges and help apply new opportunities. The author of this paper discusses these issues alongside the modern challenges of the education system. Therefore, this paper also covers the role of universities, which need to respond quickly to both current and future challenges.
Risk Management Approach in Macedonian Customs
Authors:   University St Kliment Ohridski Bitola, Faculty of Tourism and Hospitality-Ohrid, Miloshoska Danijela
Published: May 2022

International trade of goods and services is conducted in an environment that is exposed to widespread risks. The customs administrations of all countries are expected to affect the facilitation and acceleration of international trade while protecting their economies and citizens. This is a big challenge that can only be addressed by applying methods that will balance these two requirements. Applying a risk management approach in the everyday work of customs administrations is the best known way to accomplish a balance of these specified requirements. As a modern administration, the Customs Administration of the Republic of Macedonia has incorporated a risk management approach as general policy in all its customs offices. Customs controls are based on risk assessment, profiling and selectivity, disposing risk areas and facilitating management decisions on the allocation of resources. The aim of this paper is to analyse the importance of implementation of a risk management approach, with a focus on the Customs Administration of the Republic of Macedonia. Using statistical methods, calculations will be made to create indicators for the implementation of the risk management approach in the Customs Administration of the Republic of Macedonia.
The Challenges of Funding and Conducting Scientific Research in PostCOVID-19 Georgia (Case of the Shota Rustaveli National Science Foundation of Georgia)
Authors:   Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia, Polodashvili Ana
Published: May 2022

The purpose of this paper is to identify the main scientific challenges caused by the COVID-19 pandemic in Georgia. The facts are based on the: statistics of budget allocation to science promotion and grant financing by the Ministry of Education and Science of Georgia and the Shota Rustaveli National Science Foundation of Georgia (SRNSFG). The major obstacles faced by the scientific community due to the pandemic are also described below. As expected, grants for scientific research were reduced during the pandemic. It is obvious that as well as financial problems, the pandemic has caused many other scientific obstacles. It is important to identify these problems and consider the SRNSFG’s approach to reducing them. By conducting research on this issue, the author of this report concludes that the pandemic caused both financial and logistical problems in the scientific community of Georgia. Regardless of the circumstances, the measures implemented in the Georgian education system have been positively evaluated by some international organisations, such as: Microsoft, UNICEF, and the OECD.
How to Make Health Organisations More Agile During the Pandemic? Challenges of Managing Entrepreneurial Behaviour
Authors:   University of Kragujevac , Faculty of Economics, Kragujevac, Serbia, Erić Nielsen Jelena , Nikolić Jelena ,   University of Kragujevac , Faculty of Economics, Kragujevac, Serbia, Slavković Marko ,   University of Kragujevac , Faculty of Economics, Kragujevac, Serbia, Zlatanović Dejana ,   University of Kragujevac , Faculty of Economics, Kragujevac, Serbia
Published: May 2022

The COVID-19 pandemic has put health systems around the world under the ultimate pressure, unseen in the modern age. The main purpose of this research is to investigate how to make health organisations more adaptable in the pandemic circumstances, more precisely how the internal organisational climate affects entrepreneurial initiative on a daily basis. Entrepreneurial initiative thrives in an organisation with an organisational culture based on values promoted by entrepreneurial management, highlighting the possibility of individual initiative, through appropriate compensation mechanisms, given the organisational context and time constraints. During the pandemic year 2020, we conducted a pilot study as part of more comprehensive research, in which data were collected from primary care health centers in Serbia. The Corporate Entrepreneurship Climate Instrument (CECI) was used in order to estimate and evaluate the internal environment and overall propensity toward entrepreneurship. The instrument encompasses five relevant determinants that influence employees’ entrepreneurial activities: management support, work discretion, time availability, rewards/reinforcement, and organisational boundaries. The value of the research is reflected in the creation of empirically and theoretically substantiated evidence about the relevance of these factors for creating a favourable internal organization climate, thus allowing a more flexible and creative health service.