bluuebunny/crossref_metadata_2025 huggingface dataset:
DIAGNOSTIC TOOLS FOR EVALUATING THE UNIVERSITY STUDENTS LEADERSHIP QUALITIES
Authors:   Kumertau branch of Orenburg state University, Kumertau, Russia, Markelova Yu.V. , Baranov V.V. ,   Orenburg state University, Orenburg, Russia, Vorobyov V.K. ,   Orenburg state University, Orenburg, Russia, Popova E.A. ,   Eastern Academy of Economics and Humanities, Ufa, Russia
Published: March 2021

Changes in the economy associated with the emergence of various types and forms of economic activity, economic freedom, stimulate a creative and innovative approach to professional activity, a professional with leadership qualities is in demand. University complexes as centers of education, science and culture of the region accumulate and transmit innovative pedagogical experience from Central universities to branches, creating a modern educational space for the multidimensional development of personal qualities of students. Analysis of scientific research in the field of sociology, psychology, and leadership pedagogy allowed us to specify a set of qualities that characterize the future leader in various areas of management-industrial, sports, tourism, and educational. The formation and development of students ‘ leadership qualities includes a multi-aspect diagnostics of leadership. Diagnostic tools are characterized by a significant variety, due to the ambiguity of the idea of a set of personal qualities needed by the leader. Integrative assessment of leadership qualities requires the use of a representation of the profile of leadership qualities. To select diagnostic methods, a critical analysis of tools for diagnosing students ‘ leadership qualities was carried out. A matrix of conformity of the diagnosed quality and the methodology used to assess its development was created. The presented tools were used to determine the main directions of work on the development of these qualities in students. A computer program for individual assessment of a student’s leadership profile has been developed, which functions through a personal account on the University’s website. Diagnostics of students from different universities allowed us to track the dynamics of changes in the development of leadership qualities of graduates, to assess the effectiveness of the proposed pedagogical measures, and differences in the mentality of young people in large and small cities.
DEVELOPMENT OF INTELLIGENT TRANSPORT SYSTEMS IN RUSSIA: PROBLEMS AND SOLUTIONS. NEW STAGE
Authors:   Saint-Petersburg State University of Architecture and Civil Engineering, Saint-Petersburg, Russia, Solodkiy A.I.
Published: March 2021

The situation with the development of intelligent transport systems (ITS) in Russia is characterized. The main problems of the development of ITS in our country are considered. The main attention is paid to organizational reasons, such as the insufficient role of the state, the lack of a strategic vision for the development of intelligent transport systems and the integration of ITS elements of various levels and owners, the underdevelopment of the industry business, imperfect mechanisms for the creation and operation of ITS, a lack of qualified personnel. Proposals for their solution are given, as well as priority measures necessary to accelerate the development of ITS in Russia.
DIGITALIZATION AND VIRTUALIZATION OF THE LIFEWORLD: ASSESSMENTS AND POSITIONS
Authors:   Southern Federal University, Rostov-on-Don, Russia, Kataeva O.V.
Published: March 2021

The development of digital technologies, the emergence of digital objects, their increasing influence on society, culture and people determine changes in various spheres of social and human life. The concepts of digitalization and virtualization are used to describe these processes. The article is aimed at consideration of the impact of modern technologies on the culture and lifeworld of a person. For this, an analysis of the concepts of digitalization, virtualization and virtualization of the lifeworld is carried out, as well as approaches and assessments of these processes presented in the philosophical literature are proposed. The article uses the works of Russian (Ivanov D. V., Kasavina N. A., Mironov V. V., Leshkevich T. G., Sokuler Z. A., Frolov A. V.) and Western researchers (A. Kirby, Yuk Hui, O. Ollinaho, E. Schmidt, J. Cohen). The methodological basis is the principle of sociocultural determination, which determines the impact of the modern digital era on the lifeworld of a person, as well as the semantic analysis of the concepts. The main findings are as follows. First, digitalization and virtualization are two interconnected processes, while virtualization is driven by digitalization. Secondly, the concept of digitalization means the modern stage of scientific, technical and technological development, the concept of virtualization is endowing all spheres of human life with the features of virtual reality, the concept of virtualization of the lifeworld is the addition and change of the lifeworld of a person with the world of virtual reality. Thirdly, digital objects and technologies determine the emergence of new research areas — digital ontology and digimodernism. Fourthly, digitalization and virtualization of the lifeworld receive both positive (expanding the possibilities for personal development, saving resources, etc.) and negative assessments (replacing the real world with a virtual one, lack of integrity of consciousness, Internet addiction). Opposite assessments problematize the study of these processes from the standpoint of both ontology and the theory of knowledge, and axiology, ethics, philosophy of science and technology.
THE PROBLEM OF RUSSIAN SOCIETY MODERNIZATION
Authors:   Krasnodar Higher Military Aviation School of Pilots named after Hero of the Soviet Union A. K. Serov, Krasnodar, Russia, Oposhnyansky А.V.
Published: March 2021

The article is devoted to the problem of modernization of the Russian society, which is central from a practical and theoretical point of view for the existence of the Russian state. It is connected with the nature of the culture of Russian civilization, with the sociocultural type of personality and society that requires its reformatting. These are both traditional mechanisms involved in the reproduction of Russian society and innovative development factors. The focus is on the modern civilizational Challenge, which has stretched over several decades. Even such a grandiose transformation as the deconstruction of the USSR did not lead to the Answer to the Challenge. A closed, authoritarian type of Russian society with a two-dimensional traditional cultural code can be modernized only by using an external factor as a transformation lever. The article describes the specifics of Russian civilization in connection with the peculiarities of modernization at the stage of transition to post-industrial society. This transition included a crisis of a two-dimensional sociocultural code reflected in Soviet ideology and social practice, overcoming the closure of the country, and using the social and technological innovations of the West. The two-dimensional code did not provide restructuring and transition to post-industrial civilization by borrowing technological and social innovation. Modern ontology of sociality is constructed by synergy of media interactions. Media is a word and deed that designs and formats social reality. At present, the humanities can be anthropologically effective if they turn into media design that designs and formats social reality. The creators of social and anthropological design are social energy actors — scientists, proactive subcultures. The traditional national sociocode is gradually transformed under the influence of globalization, adapted to it, or aggressively extremist enters the fight against postmodernization (fundamentalist extremism). The postmodernization of the Russian society includes its diversification, also manifests itself in a multiplicity of intents into the future. The two-dimensional code of negative identity is overcome, according to the laws of synergy, through chaos and new sociality will be formed either spontaneously or by the method of managed chaos, if domestic managers, who still keep the Russian society in a state of sluggish stagnation, are ripe for it. However, the principle of bifurcation reminds us that the future is ambiguous. Without mastering the art of managed chaos, one cannot take a productive step in social governance and development.
TRANSACTION COSTS OF AN ORGANIZATION IN THE CONTEXT OF INFORMATIZATION OF THE ECONOMY
Authors:   Kazan (Volga region) Federal university, Kazan, Russia, Gurianova E.A.
Published: March 2021

The relevance of the research topic is caused by an increase in the scale of growth of the process of informatization of economy. An essential condition for the effective functioning of business is organization of uninterrupted functioning of system of collecting, processing and storing information. In the context of increasing complexity and dynamics of both the external and internal environment of organization, it increasingly leads to need to use information management systems. This process influences the size and structure of organization’s transaction costs. The problem of optimizing transaction costs in the context of global business informatization was caused by the increasing complexity of social and economic interactions, as well as the increase in the volume and speed of information exchange. In these circumstances, the management of companies should analyze the structure, dynamics and sources of growth of transaction costs. That will allow the most efficient use of the resource potential of organizations. The purpose of this study is to analyze changes in transaction costs in the context of business informatization. This article uses the method of scientific analysis and synthesis. Thus, the article analyzes statistical data on the use of information technologies in domestic companies, as well as data on the economic effect of introduction of information systems. Further, based on the synthesis of the identified trends using the author’s classification of transaction costs, an assessment of the impact of reducing transaction costs from introduction of an information system on performance indicators of organization was carried out. The paper analyzes the level of business informatization in the Russian Federation, analyzes the impact of information technologies on performance of a firm, establishes the relationship between transaction costs and level of business informatization. The research results lead to the following conclusions. The introduction of modern information technologies in activities of organizations leads to decrease in transaction costs by increasing reliability of information database and transparency of organization’s information flows. This allows you to optimize the process of making management decisions in conditions of uncertainty, reduce the cost of doing business and, as a result, increase efficiency of organization.
APOPHATIC INTEGRITY OF MAN AND CULTURE IN THE DIALOGUES OF NIKOLAI BAKHTIN
Authors:   Kuban State Technological University, Krasnodar, Russia, Apollonov I.A. , Chistilina I.A. ,   Kuban State Technological University, Krasnodar, Russia
Published: March 2021

The article discusses the dialogical foundations of a person’s personal self-identity in the space of culture on the example of N. M. Bakhtin. The relevance of the work is associated with the increased relevance of the experience of live dialogue, which in modern information reality, on the one hand, appears as an opportunity for unprecedented self-expression and a space for communication and exchange of meanings, on the other hand, as a real danger of drowning in the cacaphony of discord and loss of oneself. The purpose of the work is through a hermeneutic reading of the works of N.M. Bakhtin, to show that through dialogue a person’s personal identity is formed, through existential questioning: «Who am I?». The authors use a hermeneutic approach to reading the philosophical works of N. M. Bakhtin, as well as a comparative analysis of his ideas and those of the leading philosophers of our time. However, the authors of the article not only analyze the similarity of N.M. Bakhtin with the main philosophies of postmodernism, but also insist on the pragmatic value of his works in themselves. The authors come to the conclusion that the dialogues of Nikolai Mikhailovich Bakhtin are a wonderful example of the experience of dialogue, which takes on an existential dimension, addressing the very essence of human existence. Nikolai Bakhtin appears as a thinker striving for a living experience of philosophy, trying to find a way to a genuine person who collects and shapes himself into a simple and integral unity in the space of the true culture of a hierarchically ordered cosmos. Thanks to this, the tension of the dialogue keeps the vivid sounding of the word, ready to turn into a deed, and does not allow the voices of the interlocutors to fall into monologue one-sidedness, degenerate into artificial schemes that disidentify and enslave a person’s personal integrity.
Mythopoetics of the Were-Dragon (The Way of the Dragon by B. M. Yulsky and the Literary Context)
Authors: Lin Guanqiong
Published: March 2021

As a Russian mountain-forest policeman and writer of the Harbin diaspora, B. M. Yulsky combined in his prose the experience of the police service and ideas about the ethnoculture of the Chinese who inhabited the territory of the Far East. This article contains a hermeneutic and comparative historical analysis of the short story The Way of the Dragon (1939) by B. M. Yulsky.
The artistic morphology of the dragon is built on the comparison of its image in Chinese, Amur, Slavic and European cultures. One of the key images in the Russian heroic epic, in the Christian legend of Saint George, in Western and Northern European mythology, the dragon is actualized in modern literature. The analysis involves a philosophical treatise and a Chinese classic novel. It is shown that in the Chinese mythopoetic consciousness the temper and morphology of the dragon is different from its interpretation in European and Russian texts.
The content of the short story by B. M. Yulsky speaks about his acquaintance with the understanding of the dragon, which is more characteristic in Chinese culture. The writer integrated the archaic image of the werewolf dragon into the real situation and brought a legend to the history of Honghuzi.
The facts set forth in the monograph by D. V. Ershov are the real confirmation of the story described by B. M. Yulsky. The Way of the Dragon is an example of the artistic ethnography and the authorial frontier mythology that have developed in Russian literature in Harbin.
Segurança do paciente em centro cirúrgico: desafios para a prática de enfermagem
Authors: Oliveira Bárbara Cristina da Silva , De Oliveira Deiziane Serafim , Ferreira Josefa Danielma Lopes , Virgínio Nereide de Andrade , Monteiro Gicely Regina Sobral da Silva , De Lima César de Andrade , De Oliveira Regina Célia , Gonçalves Karyne Kirley Negromonte , Morais Camila Abrantes Cordeiro
Published: March 2021

Objetivo: Conhecer a percepção dos profissionais de enfermagem acercada segurança do paciente em centro cirúrgico. Métodos: Trata-se de uma pesquisa de caráter exploratório e descritivo, com abordagem qualitativa, realizada em um centro cirúrgico por meio de entrevista semiestruturada. A amostra foi constituída por 10 profissionais de enfermagem. Os dados foram organizados e analisados através da Análise de Conteúdo, proposta por Bardin. Resultados: Foi possível identificar duas categorias temáticas: Percepção da equipe de enfermagem acerca da Segurança do Paciente; Fatores que interferem na segurança do paciente em centro cirúrgico. Os resultados contribuem para revelar os fatores relacionados a subjetividade que envolve a relação entre a equipe de enfermagem e a percepção a respeito da segurança do paciente no centro cirúrgico, evidenciado também a importância da educação permanente na instituição para fornecer subsídios para capacitação dos profissionais, guiando uma assistência qualificada.  Conclusão: A equipe de enfermagem associa o tema de segurança do paciente com prevenção, proteção e cuidados durante a assistência. As principais atividades realizadas no centro cirúrgico foram a realização do checklist, identificação correta do paciente, prevenção de lesão por pressão, comunicação e higienização simples das mãos.
PSYCHOLOGICAL PECULIARIETES OF DEVELOPMENT OF PRODUCTIVE THINKING IN THE CONDITIONS OF «NUSh»
Authors: Savelyuk Nataliya M.
Published: March 2021

The article theoretically analyzes the concept of productive thinking, briefly examines the almost century-old history of its scientific formation and systematizes the main approaches to research – Gestalt psychological, psychoanalytic, cognitive and subject-activity. From the middle of the last century to the present day, in its most general form, productive thinking is seen as a transition from a situation of a kind of confusion about a certain issue to a new state in which everything around this issue becomes clear. This process includes a kind of reorganization, which marks the internal transformation from a state of meaninglessness to a state of meaningfulness. The psychological literature also considers productive personal orientation, which is described as associated with such a pattern of behavior, when a person is able to develop and use their potential outside of excessive dependence on external control. Such a person is very active in his feelings, thinking, relationships with others and, at the same time, he retains the autonomy and integrative nature of his Self. Data from various studies show that the early school age is one of the sensitive periods for the development and self-development of productive thinking. And the proposed «NUSh» changes create even better conditions for the realization of the appropriate age capabilities of the Person. The main methods of development and self-development of productive thinking of junior schoolchildren are systematically considered in the article on the main subjects of modern primary school and on specific examples. As a result, it is noted that in the variable content of different subjects the main methods of this development and self-development are setting problem-oriented tasks for children, when to adequately answer a question you need to move away from ready-made knowledge and stereotypes, overcome a certain mechanical attitude or self-centered position, to imagine some unusual situation from the context of the realities of life or to look boldly into the future.
Adli muhasebe ve bilimsel mütalaa müessesesi: Ceza yargılaması örneği
Authors: ÖZDEMİR Fevzi Serkan
Published: March 2021

5271 sayılı Ceza Muhakemesi Kanunu’nda “Cumhuriyet Savcısı, katılan, vekili, şüpheli veya sanık, müdafi veya kanuni temsilci, yargılama konusu olayla ilgili olarak bilirkişi raporunun hazırlanmasında değerlendirilmek üzere ya da bilirkişi raporu hakkında, uzmanından bilimsel mütalaa (uzman görüşü) alabilirler.” hükmü yer almaktadır. Bu müessesenin varlığı maddi gerçeğin ortaya çıkarılması ve yargılamanın adilliği bakımından önemli kabul edilmektedir. Nitekim adli makamlar tarafından aldırılan bilirkişi raporlarında mütalaa olunan hususların davalı veya davacı tarafından kabul edilmemesi veya uygun bulunmaması durumunda bu müesseseden yararlanılmakta ve bilirkişilerin raporuna, uzman görüşü ile bir nevi mukabele edilebilmektedir. Bu çalışmada gerçekleşen somut bir adli olayda hakkında yargılama başlatılanlar eliyle ibraz edilen bilgi ve belgelere bağlı kalınarak, muhasebe bilim uzmanı sıfatıyla, bu çalışmanın yazarından talep olunan muhasebe, denetim ve adli muhasebecilik literatürü ve uygulamaları konulu teknik mütalaa konusuna akademik olarak dikkat çekmek ve bu hususta konuyla ilgili olabilecek tüm taraflarda farkındalık yaratmak amaçlanmaktadır. Mütalaaya konu olayın özü şikâyete bağlı olarak bir bakanlığın teftiş kurulu tarafından özel hukuk tüzel kişiliği altında faaliyet gösteren bir kooperatif işletmesinde başlatılan soruşturma ve buna bağlı olarak gerçekleşen yargılama sırasındaki bilirkişi incelemelerinin değerlendirilmesidir.
ROLE OF THE TRANSFORMING GROWTH FACTOR β1 IN THE GENESIS OF ARTERIAL HYPERTENSION AND ITS COMPLICATIONS
Authors:   Grodno State Medical University, Grodno, Belarus, Levkovich T. V. , Pronko T. P. ,   Grodno State Medical University, Grodno, Belarus
Published: March 2021

Transforming growth factor beta 1 (TGFβ1) is an actively studied cytokine with rather contradictory effects. The article systematizes and summarizes the scientific data on TGFβ1 and its role in the development and progression of arterial hypertension, with an emphasis on arterial stiffness.
EXPERIMENTAL MODELING OF FROSTBITES OF VARYING SEVERITY IN LABORATORY ANIMALS. PART 2. MORPHOLOGICAL ASSESSMENT OF THE EFFECTIVENESS OF THE DEVICE FOR SIMULATING CONTACT FROSTBITE
Authors:   Grodno State Medical University, Grodno, Belarus, Valentyukevich A. L. , Melamed V. D. ,   Grodno State Medical University, Grodno, Belarus, Prokopchik N. I. ,   Grodno State Medical University, Grodno, Belarus
Published: March 2021

Background. The study of new methods of treating frostbite is feasible using an experimental model, the effectiveness of which is confirmed by morphological results. Purpose of the study. Morphological substantiation of the effectiveness of the developed device for simulating contact frostbites of varying severity. Material and methods. In 30 laboratory rats, the designed device was used to simulate cold trauma of varying severity. The material for morphological research was collected at different time intervals. Results. Morphological argumentation of the effectiveness of the created device for reproducing both superficial and deep frostbites is presented. Conclusions. The developed device is not difficult to manufacture; it is safe and allows reproducing standardized contact frostbites of varying severity in laboratory animals.
CLINICAL AND MORPHOLOGICAL FEATURES OF ACUTE AND CHRONIC WOUNDS
Authors:   Gomel State Medical University, Gomel, Belarus, Slavnikov I. A. ,   Gomel City Clinical Hospital No1, Gomel, Belarus, Dundarov Z. A. ,   Gomel State Medical University, Gomel, Belarus, Yarets Y. I. ,   Republican Research Center for Radiation Medicine and Human Ecology, Gomel, Belarus
Published: March 2021

Background. The chronicity of the wound is a factor leading to a greater number of postoperative complications when performing plastic closure of wound defects and requires the use of special methods of preoperative preparation. In clinical practice, it is important to use precise clinical and morphological criteria to assess the activity of the inflammatory response and the degree of impairment of the proliferative phase of the reparative process. Aim. To determine the features of clinical parameters of the local status of wound defects and their correspondence to morphological criteria in patients with acute and chronic wounds of various genesis. Material and Methods. Clinical signs of acute and chronic wounds in 26 patients with different types and duration of integumentary tissue defects were described. In a hospital setting, a morphological study of the biopsy specimens from wounds and surrounding tissues was performed to identify histological signs of chronic wound healing. The correspondence between clinical and morphological signs of acute and chronic wounds was analyzed. Results. The initial study of the local status of wound defects did not reveal significant differences in the clinical signs of acute and chronic wounds. Histological examination of the wound biopsy specimens revealed morphological signs of chronic wound healing. Conclusion. Evaluation of clinical signs of the local wound status is necessary to identify the dynamics of wound parameters during treatment. Histological examination of wound biopsy specimens makes it possible to more reliably identify signs of chronicity of the wound.
Interfacial Haloplumbate Modulation for Efficient and Stable Hybrid Perovskite Photovoltaics
Authors: Wang Huanhuan , Zhang Zhuang , Milić Jovana V. , Tan Liguo , Wang Zaiwei , Chen Rong , Jing Xin , Yi Chenyi , Ding Yi , Li Yuelong , Zhao Ying , Zhang Xiaodan , Hagfeldt Anders , Grätzel Michael , Luo Jingshan
Published: March 2021

The commercialization of perovskite solar cells is mainly limited by their operational stability. Interlayer modification by thin interface materials between the perovskite and the charge transport layers is one of the most effective methods to promote the efficiency and stability of perovskite devices. However, the commonly used interlayer materials do not meet all the demands, including good film quality, excellent stability, and passivation capability without interfering with the charge transport. In this work, we propose a new material, water stable haloplumbate [TBA]PbI3 for interfacial modification, which is formed on the perovskite surface in-situ by tetra-butylammonium iodide (TBAI) treatment. Benefiting from its passivation effect and robustness, the modified devices result in a power conversion efficiency of 22.90% with excellent environmental and operational stability.
Peptidomimetic Polyurethanes Disrupt Surface Established Bacterial Biofilms and Prevent Biofilm Formation
Authors: Vishwakarma Apoorva , Dang Francis , Ferrell Allison , Barton Hazel A. , Joy Abraham
Published: March 2021

Over 80% of all chronic bacterial infections in humans are associated with biofilms, which are surface-associated bacterial communities encased within a secreted exopolysaccharide matrix that can provide resistance to environmental and chemical insults. Biofilm formation triggers broad adaptive changes in the bacteria, allowing them to be almost a thousand-fold more resistant to conventional antibiotic treatments and host immune responses. The failure of antibiotics to eliminate biofilms leads to persistent chronic infections and can promote the development of antibiotic-resistant strains. Therefore, there is an urgent need to develop agents that effectively prevent biofilm formation and eradicate established biofilms. Herein, we present water-soluble synthetic peptidomimetic polyurethanes that can disrupt surface established biofilms of Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli, all of which show tolerance to the conventional antibiotics polymyxin B and ciprofloxacin. Furthermore, these polyurethanes prevent bacterial attachment and stimulate bacterial surface motility to inhibit biofilm formation of both Gram-positive and Gram-negative bacteria at sub-inhibitory concentrations, without being toxic to mammalian cells. Our results show that these polyurethanes show promise as a platform for the development of therapeutics that target biofilms and modulate surface interactions of bacteria for the treatment of chronic biofilm-associated infections and as antibiofilm agents.
Nanospheres to Nanosheets: Unfolding the Morphological Influence of Microporous Organic Polymers on Micropollutants Removal
Authors: GIRI ARKAPRABHA , Biswas Subha , Dutta Tapas , HUSSAIN MD. WASEEM , Patra Abhijit
Published: March 2021

Nanoporous organic polymers with distinct morphologies are of immense interest for a broad spectrum of applications ranging from catalysis to molecular separation, energy storage, and energy conversion. However, developing facile and versatile methodologies to obtain well-orchestrated morphologies along with high specific surface area pertinent to a specific application is still a formidable challenge. The design of the task-specific networks can be benefitted through further analysis of subtle variations in the polymerization conditions. Herein, we have critically examined the fabrication of triptycene-based hypercrosslinked polymers (HCPs), exhibiting contrasting morphologies developed through three distinct polymerization routes. Astonishingly, a remarkable variation of nanostructured morphology of irregular aggregates, nanospheres, and nanosheets was noticeable in the resultant network polymers through Friedel-Crafts crosslinking using dimethoxymethane as an external crosslinker, Scholl coupling, and solvent knitting using dichloromethane as an external crosslinker and solvent, respectively. The dramatic role of reaction temperature, catalysts, and solvents driving the formation of specific nanostructured HCPs was elucidated. Mechanistic investigations coupled with spectroscopic and microscopic studies revealed that the 2D-nanosheets of highly porous solvent-knitted HCP (SKTP, SBET: 2385 m2 g-1) evolved through the hierarchical self-assembly of rigid nanospheres into nanoribbons followed by the formation of nanosheets. We further demonstrated a structure-activity correlation of the pristine as well as post-synthetically sulfonated HCPs for the removal of a gamut of organic micropollutants from water. Solvent knitted triptycene polymer (SKTP) and its sulfonated derivative (SKTPS, SBET: 1444 m2 g-1) owing to high specific surface areas, excellent dispersity in water, and better accessibility of analytes through 2D-sheet like morphology exhibited ultrafast sequestration (30 s to 5 min) of an extensive array of persistent organic micropollutants, including ionic dyes, plastic components, steroids, antibiotic drugs, and herbicides with excellent recyclability. The current study holds the promise that a delicate control over the morphologies of nanoporous polymers by tuning the fabrication conditions paves the way for the development of advanced porous materials for environmental remediation.
STABILITY ANALYSIS OF PARALLEL CONNECTED DC-DC CONVERTERS
Authors: O. Elbkosh Abdulmajed
Published: March 2021

Parallel controlled DC-DC converters are nonlinear and non-smooth systems, they show various nonlinear behaviour including smooth, non-smooth bifurcation, and chaos when they work outer their design conditions. Usually, the Poincaré map approach is the most common method for studying the stability of those nonlinear systems. Stability is indicated using the eigenvalues of the Jacobian of the map computed at the fixed point. The other method is the monodromy matrix approach, where the stability can be concluded by computed the eigenvalues of the matrix. In this paper, the nonlinear dynamics of parallel connected DC-DC converters are investigated. It is shown that the concept of the monodromy matrix can be applied to determine the stability of the system as well as the Poincare map approach.
FILTERING ALGORITHMS FOR DE-SPECKLE THE ULTRASOUND IMAGES OF BONE FRACTURE
Authors: Muhd Zain Muhammad Luqman , Wan Tarmizi Wan Faizura , Ghoni Ruzlaini
Published: March 2021

Ultrasound images are popularly known to contain speckle noise that degrades the quality of the images for good and fast interpretation in many areas of medicine, especially for bone fracture detection. This necessitates the need for robust de-speckling techniques for clinical practice. Therefore, a study was carried out to reduce speckle using filtering algorithms such as Wiener, Average, Median and Wavelets. This paper discusses the level of improvement obtained through these filtering algorithms using the peak signal to noise ratio (PSNR) as a measurement tool. The results of our work presented in this paper suggest that the combination of Daubechies–Wiener which we call as a hybrid technique, gave the best performance, which is a new contribution in this field. This de-speckling algorithm can be further developed and evaluated at a larger scale.
DEVELOPMENT OF CHINESE-KAZAKHSTAN TRADE IN AGRICULTURAL PRODUCTS WITHIN THE FRAMEWORK OF "ONE BELT, ONE WAY": FEATURES, FORMS OF COOPERATION AND PERSPECTIVES
Authors: Zhang Haohe
Published: March 2021

The "Оne Вelt, Оne Road" policy has brоught ecоnоmic and trаde relаtiоns between Chinа аnd Kаzаkhstаn closer in the field of agricultural products, adding new opportunities for development, and the volume of tradе has bеcomе stаblе and grоwing. Bilateral trade between China and Kazakhstan has shown new positive dynamics, where a unified trade structure is also noted. There are great development prospеcts in the field of agricultural products of the two countries. In this regard, the author points to a mega-project called the Belt and Road Initiative, which focuses on the current situation and characteristics of Sino-Kazakh agricultural trade. The article indicates some problems in the bilateral cooperation of the two states. Among these problems, the most important are noted. For example, the author notes that the situation with a large number of trade barriers prevents more Chinese and Kazakh enterprises from entering the market. As a starting point based on an analysis of the obstacles facing the development of bilateral agricultural trade, countermeasures should be taken to further deepen bilateral cooperation in agricultural trade. A set of proposals to mitigate the problems of economic cooperation between Kazakhstan and China are offered in the conclusion of the article. Key words: trade and economic cooperation, agrarian complex, dynamics of agricultural production growth, trade volume, trade turnover, trade barriers, RK, PRC.
Protective effect of moringa-based beverages against hyperlipidemia and hyperglycemia in type 2 diabetes-induced rats
Authors: Al Zhrani M.M. , Althwab S.A. , Aljutaily T. , Alfheeaid H.A. , Ashoush I.S. , Barakat H.
Published: March 2021

The objectives of this study were to determine the phenolic profile and potential
antioxidant activity of Moringa oleifera leaves (MOL) cultivated in Saudi Arabia and to
investigate the protective effect of moringa-based beverages on lipidemic and glycemic
parameters in alloxan-induced diabetic rats (DR). The total phenolic content (TPC),
chlorophylls, total carotenoids, total flavonoids, total flavonols, ascorbic acid content, and
antioxidant activities (AOA) of MOL were determined and HPLC analysis of MOL was
quantitatively performed. Moringa beverages as pure moringa (PM) and ginger-flavored
moringa (GM) were given to diabetic rats (DR) at a dose of 1 mL 100 g-1
body weight/day
for a successive six weeks. Glucose level (GL), lipid profile, and antioxidant parameters
including malondialdehyde (MDA), reduced glutathione (GSH), and pancreas
histopathological alterations were examined. Results indicated that MOL and prepared
moringa-based beverages possess a suppressive amount of phenolics with considerable
antioxidant activity in vitro. TPC was 78.72 mg GAE g-1 DW possess AOA as 36.33 μmol
TE g-1 DW. Among the eleven identified phenolic acids and six flavonoids in MOL,
caffeic acid and catechin were predominant and recorded 151.01 and 736.30 mg/100 g,
respectively. Administration of PM or GM beverages significantly decreased GL and
significantly improved serum lipid profiles in the DR group. Interestingly, oral
administration of PM and GM beverages significantly attenuated the MDA and GSH
levels in the DR compared to normal rats. Histopathologically, severe atrophy was noted
in the islets of Langerhans in the DR group. However, after six weeks of oral
administration of PM beverage, only mild atrophy was recorded in the islets of
Langerhans, while with GM beverage, no histopathological alteration in the islets of
Langerhans was found. The nutritional and biological evaluation of the moringa-based
beverages revealed that both PM and GM beverages exhibit high antioxidant activity,
possess antihyperglycemic and antihyperlipidemic effects, and alleviated alloxan-induced
pancreatic damage in DR. Moringa could be recommended for diabetes and utilized for its
great therapeutic benefits.
الايزيدية في عدد من كتابات المؤرخين العراقيين رؤية نقدية
Authors: Khudeda Alo Seed , Hamad Meho Arshad
Published: March 2021

تقدم المصادر العربية معلومات مهمة عن جوانب مختلفة للحياة الأجتماعية و السياسية و الاقتصادية للأيزيديين وملامح عن معتقدانهم الدينية في حقبة تاريخية كانت تتسم بقلة المعلومات عن هذه الديانة التي كانت و ما زالت معتقداتها وأصل تسميتها والطقوس التي يمارس أبناءها مثار جدل و اختلاف بين الكثير من من كتبواعنهم، ولكن في كثير من الاحيان نرى ان العديد من هؤلاء المؤرخين لم يكونوا منصفين و موضوعيين في أرائهم حول هذه الجوانب التي ذكرناها بخصوص الايزيدية وذلك بحكم طبيعة الظروف السياسية التي كانت سائدة أنذاك او لم يكن لدى بعض من هؤلاء المؤرخين رؤية واضحة و القدرة على أستيعاب المواضيع التي تتعلق بطبيعة ديانة و المجتمع الايزيدي . كتب العديد من المؤرخين العراقيين عن الايزيدية ومعتقداتها ولعل من أبرزهم (صديق الدملوجي- توفي 1958 وعباس العزاوي- توفي 1971 و عبدالرزاق الحسني - توفي 1997 سعيد الديوجي -توفي 2000) ومن هنا تاتي اهمية هذه الدراسة في سير ما كتبه هؤلاء الكتاب عن الايزيدية، لكننا كباحثين أكاديميين علينا التوقف عن بعض الجوانبومعطيات التي ذكرها هؤلاء الكتاب بخصوص بعض المواقف و المعلومات عن الديانة الايزيدية والنظر اليها بحذر، فمن الجائز أن يكون أحد من هؤلاء الكتاب كان ميالآ الى المبالغة ولم يكن متفهمآ لطبيعة المجتمع الايزيدي، كما أننا لدينا ملاحظات عديدة بخصوص مصادر معلوماتهم عن الايزيدية، فكثيرأ كانوا يكتبون عن الايزيدية بحكم الاحكام المسبقة وطبيعة وجهة نظرهم الدينية والمذهبية وهذا ليس كافيآ بخصوص كل تلك الجوانب المذكورة عن الايزيديين و طبيعة ديانتهم، ونحن بدورنا ومن خلال هذه الدراسة سوف نحاول تحليل وأيضاح بعض المواضيع وذلك بالاعتماد على مصادر أخرى واكثر موضوعية والتطرق الى بعض المواضيع التي ذكرها وفق وجهة نظر نقدية تحليلية للوصول الى نقاط اكثر علمية تتعلق بحياة وطبيعة المجتمع الايزيدي .
Experimental Investigation of the Hybrid Damper Clutch System Under Dynamic Conditions of an Automobile Powertrain
Authors: GENÇ Mehmet Onur , KONAKÇI Süleyman , KAYA Necmettin , İMER Çağlar , SERBEST Ali Kamil
Published: March 2021

Automobile components are subjected to high dynamic forces and vibrations under operational conditions which need detailed system analysis for work properly. Clutch is one of the important parts of the automobile powertrain system with torque transmission controlling and vibration damping properties. Metallic helical springs are widely preferred within the clutch discs with their durable mechanic properties against dynamic variables on an automobile. Recently, the elastomeric components are used in the automotive industry due to some advantages such as wear reduction, cost etc. In this study, the damper system which consists of the metallic and elastomeric springs was investigated and the torsional endurance was observed with the functional bench tests. This product, called Hybrid Damper, was revealed with the comparative analysis with the conventional metallic system.
Spark Plasma Sintering of Nano Silicon Carbide Reinforced Alumina Ceramic Composites
Authors: GÖK Mustafa Güven
Published: March 2021

Although Al2O3 has been commercially preferred material, it cannot be used in applications subject to variable and sudden loads due to its low fracture toughness. In this study, as the primary purpose, to improve the fracture toughness of the Al2O3/nano-SiC particles was used as reinforcement phase. Ultrasonic dispersion was used to ensure good dispersion of the nano reinforcement phase in the matrix. Production was carried out by spark plasma sintering method at temperatures of 1325 °C for 5 min under 40 MPa pressure and vacuum atmosphere. After production process, sintering behavior, density, microstructure, phase structure, hardness and fracture toughness of the Al2O3/nano-SiC composites were analyzed. The highest hardness and fracture toughness of 22.83 GPa and 6.09 MPa·m1/2 was achieved, respectively.
Fibre Volume Fraction and Impact Strength Analysis of Reinforced Polyester Composites
Authors: OLODU Dıckson Davıd , IHENYEN Osagie
Published: March 2021

Improper fibre volume analyses in most reinforced composites poses great challenges in polymer industries which results to the production of composites with low mechanical strength. This study investigates the fibre volume fraction and impact strength analysis of reinforced polyester composites. In this study, E-Glass fibres (hard and soft mat) were mixed with polyester at different composition by volume. The E-glass serves as reinforcement to the polyester, fourteen test specimens of the reinforced composites were developed with each of them having dimension of 210mm length, 150mm width and 50mm thickness respectively. The properties of the developed reinforced composites such as volume fraction, impact energy, and impact strength were analysed from the values obtained from compact tension and Charpy impact test respectively. The results obtained shows that the effective thickness of the developed reinforced composites ranged from 60mm to 100mm at fibre fraction which ranges from 0.32 to 0.50. The results obtained also shows that the specimens containing woven roving have greater resistance to fracture and impact damages due to high fibre volume fraction. Hence, the laminates impact strength is a function of its fibre volume fraction.
Estimation of genealogical lines of cattle of the Kazakh white-headed breed
Authors: Soloshenko V. A. , Pleshakov V. A. , Inerbaev B. O. , Durov A. S. , Khramtsova I. A.
Published: March 2021

An assessment of economically useful traits and external conformation of the Kazakh whiteheaded cows of the main genealogical lines, bred in the farms of the Altai Territory, was carried out. For the analysis, indicators of economically useful traits and conformation of first-calf heifers and full-aged cows of the Kazakh white-headed breed were used: live weight, measurements, total score for conformation, milk production. It was established that first-calf heifers of Zamok 3035 line surpass their herdmates in chest girth, and heifers of Zadorny 1325 and Korol 13682 lines are superior in oblique body length. Cows of Peon 29 line are inferior to their peers in live weight. The best indicators in live weight were noted in full-aged cows of Zadorny 1325 line, in milk yield – in Korol 13682 line. In general, there were no significant differences in most animal traits between the lines assessed. Analysis of full-aged cows belonging to the lines of Zamok 3035, Korol 13682, Zadorny 1325 showed that they surpass their herdmates in live weight, the lines of Korol 13682 – in milk yield. The study of the coefficients of heritability showed a low level of influence of the genotype on the variability of the main traits. This fact may indicate a high degree of consolidation of the Kazakh white-headed breed. In the breeding work with this breed, it is necessary to make wider use of sires belonging to the lines of Zadorny 1325, Zamok 3035. Particular attention should be paid to the rotation of genealogical groups. It is recommended to use new unrelated animals from other regions to increase the genetic variability of traits in herds. In order to do this, selection should be carried out in accordance with the grading requirements and selection parameters calculated for a particular farm.
Screening of wheat varieties of the Russian breeding for resistance to brown rust
Authors: Agapova V. D. , Vaganova O. F. , Kudinova O. A. , Volkova G. V.
Published: March 2021

The results of immunological assessment of varieties of durum and soft winter wheat bred by the Agrarian Scientific Center Donskoy for resistance to leaf rust are presented. The experiment was carried out in Krasnodar Territory in 2016–2019. Screening of 86 selection samples (63 varieties of durum winter wheat and 23 samples of soft winter wheat) was carried out in an artificial infectious environment. To infect plants, a population collected during route surveys of production and selection crops of winter wheat was used. The varieties were assessed according to two criteria: the type of reaction (in points) and the degree of damage (in percent) during the period of maximum disease development. Screening of the samples was carried out during three growing seasons; for the second and third years of the study, resistant varieties were selected with the reaction type of 1.2 points and the degree of damage of no more than 10%. The degree of damage on the susceptibility control reached from 50 to 80%. As a result of the study, the samples of durum winter wheat were ranked as follows: 16 resistant samples, 26 medium-resistant, 20 medium-susceptible, 1 susceptible. Among the samples of soft winter wheat, 6 resistant samples were identified, 11 medium-resistant, 5 medium-susceptible, 1 susceptible. Over 3 years of research, 16 resistant samples of durum winter wheat were identified (465/15, 502/15, 515/15, 537/15, 597/15, 663/15, 681/15, 694/15, 730/15, 742 / 15, 753/15, 979/15, 996/15, 993/12, 1035/15, 417/13) as well as 6 resistant samples of soft winter wheat (134/11, 1415/11, 1765/14, 1074/14, 1813/14, Tanais). As a result of the screening, a high percentage of varieties resistant to leaf rust was found. The sources of resistance that were identified have been recommended to be included in wheat breeding programs for pathogen resistance in the Russian Federation.
Screening of awnless bromegrass collection samples in the taiga zone of Western Siberia
Authors: Urazova L. D. , Litvinchuk O. V. , Saynakova A. B.
Published: March 2021

The paper presents the results of the study of collection samples of awnless bromegrass from the Federal Research Center N.I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) to identify donors of valuable breeding traits. The study was carried in 2015-2018 in Tomsk region. The soils of the experimental plots were sod-podzolic, sandy loam by granulometric composition, with a humus content in the arable layer of no more than 2%. The recorded area of the plot was 0.5 m2. The trials were repeated two times. Procedures for trial establishment, phenological observations, harvest recording and data processing were performed in accordance with the methodological recommendations of the All-Russian Williams Fodder Research Institute, VIR and the State Variety Testing Methodology. The years of the study were characterized by uneven distribution of heat and moisture during the growing season. This made it possible to identify the most adaptive samples for selective breeding of awnless bromegrass which can be used as a hay and pasture plant in the taiga zone. The following valuable source materials were selected for tall varieties: Khabarovsky, Titan, Vozvyshensky, SibNIISkhoz 88; samples of wild plants Yakutia (K-14215), Vologda (K-14224), Omsk (K-14228), Sverdlovsk (K-14209) regions, a local sample of Tomsk region (K-14226). The following samples resistant to fungal diseases were identified: Morshansky, Khabarovsky and Erkeeni varieties; samples of wild forms of Irkutsk (K-14221, К-14227), Vologda (K-14212, К-14224), Omsk (K-14228) regions, a local sample of Tomsk region (K-14226). The following high-yielding varieties in terms of fodder mass were recognized: wild forms of Vologda region (K-14212, К-14222) and a local population of Tomsk region (K-14214); highly leafy varieties: Primorsky 46, SibNIISKHoz 88, wild forms of Komi (K-14208), Irkutsk (K-14227), Vologda (K14212, К-14224) regions, local samples of Tomsk region (K-14214, К-14226); varieties with high seed yield: Duet, Primorsky 46, Erkeeni, wild forms of Vologda region (K-14212, К-14224), a local sample of Tomsk region (K-14226). Based on the set of the main economically valuable traits for sowing in a polycross nursery, samples of wild plants from Vologda region (K-14212, К-14224), and local samples of Tomsk region (K-14214, К-14226) were selected.