Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria最新文献

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Vacuum solutions of Einstein equations that depend on one coordinate 依赖于一个坐标的爱因斯坦方程的真空解
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-10-24 DOI: 10.17721/BTSNUA.2020.62.10-11
Вакуумні РОЗВ'ЯЗКИ Зтв
{"title":"Vacuum solutions of Einstein equations that depend on one coordinate","authors":"Вакуумні РОЗВ'ЯЗКИ Зтв","doi":"10.17721/BTSNUA.2020.62.10-11","DOIUrl":"https://doi.org/10.17721/BTSNUA.2020.62.10-11","url":null,"abstract":"In the famous textbook written by Landau and Lifshitz all the vacuum metrics of the general theory of relativity are derived, which depend on one coordinate in the absence of a cosmological constant. Unfortunately, when considering these solutions the authors missed some of the possible solutions discussed in this article. An exact solution is demonstrated, which is absent in the book by Landau and Lifshitz. It describes space-time with a gravitational wave of zero frequency. It is shown that there are no other solutions of this type than listed above and Minkowski’s metrics. The list of vacuum metrics that depend on one coordinate is not complete without solution provided in this paper.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78295795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Counteraction to the anti-church policy of the soviet government in Ukraine in the 20–30-s of the 20th century: causes, course and consequences 20世纪二三十年代苏联政府在乌克兰反教会政策的反制:原因、过程与后果
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.12958/2227-2844-2023-2(356)-77-88
O. Bublik
{"title":"Counteraction to the anti-church policy of the soviet government in Ukraine in the 20–30-s of the 20th century: causes, course and consequences","authors":"O. Bublik","doi":"10.12958/2227-2844-2023-2(356)-77-88","DOIUrl":"https://doi.org/10.12958/2227-2844-2023-2(356)-77-88","url":null,"abstract":"In the article research the resistance of Ukrainians to the anti-religious policy of the Bolsheviks, the first years of their stay in power. The article notes that one of the main characteristic features of the development of Ukrainian historiography at the current stage is the increasing attention of scientists to problems related to the history of church life in Ukraine. This especially applies to the Soviet period of history, when the traditional church, which used to be one of the determining factors in the development of Ukrainian society, suffered a significant blow as a result of the implementation of the anti-church policy of the Soviet government. At the same time, especially in the first decades of the existence of the Bolshevik regime, opposition to the anti-religious policy of the Bolsheviks on the part of the Ukrainian population was quite noticeable. This aspect, in our opinion, needs a more detailed scientific rethinking, which is aimed at this scientific article. Are shown the main directions and types of resistance, its results and consequences for the further implementation of the church policy by the Soviet authorities. It also depicts a complex of punitive repressive measures against the religious communities of Ukraine during the period under study. As a result of the conducted research, the author comes to the conclusion that from the moment the Bolsheviks came to power, their anti-church company encountered spontaneous protests from various religious communities. The protest took various forms – from ignoring and sabotaging the anti-religious initiatives of the Bolshevik government, to active armed resistance against its representatives. This, in turn, led to the intensification of the terror of the Soviet authorities against the church, which, in the end, was forced to recognize the politics and power of the Bolsheviks.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73087139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE INTERACTION OF HUMANS AND THE INFORMATION SPHERE IN THE DIGITAL AGE 数字时代人类与信息领域的互动
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/2523-4064.2023/8-4/8
M. Kalganov
{"title":"THE INTERACTION OF HUMANS AND THE INFORMATION SPHERE IN THE DIGITAL AGE","authors":"M. Kalganov","doi":"10.17721/2523-4064.2023/8-4/8","DOIUrl":"https://doi.org/10.17721/2523-4064.2023/8-4/8","url":null,"abstract":"The article presents the results of the research devoted to the study of the peculiarities of human interaction with the information sphere in the digital age. In particular, the impact of information technologies on human thinking and behavior, social communications and relationships is studied. Special attention is paid to digital platforms and social networks that change human reality, transforming the material context into virtuality. The positive and negative sides of using social networks are also considered, as well as the possible consequences of their use in the long term. In the process of research, the role of information technologies in the modern world and their influence on human behavior and thinking is revealed, the specifics of human interaction with information in the era of information technologies are analyzed, the social and psychological consequences of the use of information technologies and social networks for people are identified, recommendations are developed for the correct use of information technologies and social networks in order to ensure a balanced and healthy human life. It is argued that modern IT has enabled unprecedented access to information and brought people together in new ways, but at the same time created significant challenges such as information overload and the spread of misinformation. It is proven that the development of artificial intelligence and automation of processes is one of the latest trends in the evolution of human interaction with the information sphere, which may eventually lead to radical changes in production processes and the situation on the labor market. The issue of responsible and ethical handling of information technologies is raised due to the significance of their impact on cultural processes on a global scale. The author's argumentation is strengthened by the ideas and opinions of leading modern thinkers on this topic.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"467 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77481427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CONCEPT DEMOCRACY IN THE SPEECHES OF THE WORLD LEADERS IN THE CONTEXT OF RUSSIAN-UKRAINIAN WAR 俄乌战争背景下世界领导人演讲中的民主概念
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728-2659.2023.34.22
Diana Sabadash, Vasylyna Lukaniuk
{"title":"CONCEPT DEMOCRACY IN THE SPEECHES OF THE WORLD LEADERS IN THE CONTEXT OF RUSSIAN-UKRAINIAN WAR","authors":"Diana Sabadash, Vasylyna Lukaniuk","doi":"10.17721/1728-2659.2023.34.22","DOIUrl":"https://doi.org/10.17721/1728-2659.2023.34.22","url":null,"abstract":"The article reflects the results of the reconstruction of the concept DEMOCRACY in lexicographic sources and analysis of its actualization in the speeches of Joe Biden, Boris Johnson, Liz Truss, Ursula von der Leyen, and Volodymyr Zelensky in 2022 from the perspective of the Russian-Ukrainian war. Based on the component-semantic analysis of the definitions of the lexeme democracy in eight English-language explanatory dictionaries (Cambridge Dictionary, Oxford Learner's Dictionary, Longman Dictionary of Contemporary English, Macmillan Dictionary, Collins Online Dictionary, Merriam-Webster Online Dictionary and Thesaurus, The Chambers Dictionary, Etymology Online Dictionary) was modeled, which includes core fields (people’s government та system of government), near (country, equality, right to vote) and far (freedom) periphery fields. The study of twelve selected speeches (67 pages of printed text) also made it possible to single out one more field of the far periphery – fight, which is actualized as a result of the objectification of such features of the concept as democracy under threat, union, protect/defend democracy, protect/defend freedom as a result of rethinking the concept of DEMOCRACY in the context of Russia's aggression against Ukraine. It was determined that in the speeches of world leaders in 2022, the concept of DEMOCRACY is verbalized with the help of tokens democracy, people, vote, elect, free, freedom, country, etc. The analysis of the features and frequency of their use indicate that the lexeme democracy in relation to other verbalizers prevails in the speeches of the American president, as evidenced by the number of the word usage – 111 times and Ursula von der Leyen's – 27 times; lexemes people (65 word usages) and country (64 word usages) dominate the speeches of Boris Johnson and Liz Truss; in the speech of Volodymyr Zelensky, free, freedom and people are the predominant verbalizers, which indicates the current priorities in the concept components for representatives of different nations. Contrasting the concepts of DEMOCRACY and AUTOCRACY to characterize Ukraine and its people and the aggressor country and its leader, respectively, reflect changes in the perception of Ukraine and Ukrainians on the world stage.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80297537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PAIDEIA AS A BASIC IDEA OF XENOPHON’S "CYROPAEDIA" AND HERODIAN’S "HISTORY…" Paideia作为色诺芬的“cyropaedia”和希律王的“history”的基本概念…
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728-2659.2023.34.09
Lesia Zvonska, F. Dovbyshchenko
{"title":"PAIDEIA AS A BASIC IDEA OF XENOPHON’S \"CYROPAEDIA\" AND HERODIAN’S \"HISTORY…\"","authors":"Lesia Zvonska, F. Dovbyshchenko","doi":"10.17721/1728-2659.2023.34.09","DOIUrl":"https://doi.org/10.17721/1728-2659.2023.34.09","url":null,"abstract":"The results of the study of the main positions of the philosophical-ethical and political dimension of the concept of education (paideia) in Xenophon's \"Cyropedia\" and Herodian's \"History of the Roman State after Marcus Aurelius\" are presented. The research methodology of the ancient biographical and historiographical text is briefly substantiated. The narrative strategies of the representation of the principles of education in both works are described in a comparative aspect. The structure of communication and ways of implementing the author's narrative strategy are analyzed through the prism of the cross-cutting idea of both works: the absolute influence of the role of the education of the ruler on the education of society. The concept of paideia is considered as a key meaning-forming element of both works; it is illustrated how the texts of Xenophon and Herodian present paideia as the main condition for the success of the ruler and his state. Common and distinctive features of the implementation of the author's narrative strategy in both works were revealed. Techniques for implementing the author's narrative strategy in the texts of Xenophon and Herodian are illustrated with examples from the original texts with translation. The example of both texts shows the durability of the traditions of writing ancient historiographic biography from the classical to the Hellenistic-Roman era: the similarity of the narrative structure, the presence of two-level communication (author's and narrator's), plot vicissitudes, the location of which in both texts coincides with the place of the golden intersection. It is proved that the texts of Xenophon and Herodian, separated from each other by a rather significant period of time of half a millennium, pursue the same goal: showing the disfunctionality of both an individual and society in general, which deviated from the principles of paideia. The elements of the narrative structure of ancient historiographical texts described in the article testify to its similarity to the structure of ancient tragedy (according to Aristotle).","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80520315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The study of history as a factor in the formation of national self-identification of servicemen of the Armed Forces of Ukraine 历史研究是乌克兰武装部队军人形成民族自我认同的一个因素
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728-2217.2023.54.9-14
К. Pyrogov
{"title":"The study of history as a factor in the formation of national self-identification of servicemen of the Armed Forces of Ukraine","authors":"К. Pyrogov","doi":"10.17721/1728-2217.2023.54.9-14","DOIUrl":"https://doi.org/10.17721/1728-2217.2023.54.9-14","url":null,"abstract":"The importance of the formation of national self-identification among servicemen of the Armed Forces of Ukraine cannot be underestimated, since the full-scale armed aggression of the Russian Federation requires from the defenders of Ukraine not only the performance of their professional work, namely the protection of Ukraine from external threats, but also the motivational component of continuing the fight against the aggressor, which contains identification and understanding of one's place in the world, especially in the Ukrainian nation. The article examines the formation, explanation and justification of the national narrative as a dominant component of the history of Ukraine. The importance of the national narrative in the formation of the personality and self-identification of military personnel is considered. The topic of nationalism is considered as the basis of the national idea and the formation of the nation in modern national states. The negative aspects of the lack of national identification and integration in the collective society and community were considered. This article is devoted to the consideration of the peculiarities of the formation of national identity and history, as the main tool in the formation of self-identification of military personnel of Ukraine, as conscious citizens and participants in the social friendship of Ukrainians. Changing orientations and civilizational challenges that continue in the 21st century require a stable identity for military personnel, but the very process of its formation requires not only theoretical justification, but also practical use during training in higher military educational institutions of Ukraine. The study of history can become one of the methods that can be used by scientific and pedagogical workers for the development of the personality of cadets, therefore the purpose of this article is to scientifically substantiate the study of history as such a method.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84511490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CONNECTION OF THE SEMANTICS OF DOUBT AND INDEFINITE REFERENCE 怀疑语义学与不定指称语义学的联系
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728-2659.2023.34.15
Xiaomeng Le
{"title":"CONNECTION OF THE SEMANTICS OF DOUBT AND INDEFINITE REFERENCE","authors":"Xiaomeng Le","doi":"10.17721/1728-2659.2023.34.15","DOIUrl":"https://doi.org/10.17721/1728-2659.2023.34.15","url":null,"abstract":"The article is devoted to the analysis of the connection between the semantics of doubt and indefinite reference. Reference as a correlation with reality is carried out by the speaker during the speech act. If such a correlation is unsuccessfully realized in the human mind, then we are talking about the uncertainty of the object. The category of uncertainty is highly subjective and communicative in nature: the meaning of the indefinite reference is transmitted in the process of a specific speech act. The semantic category of doubt is complicated, on the one hand, by connections with the category of certainty/uncertainty, on the other hand, the semantics of doubt and indefinite reference are implemented in specific speech acts and have an obviously subjective nature, which is explained by the fact that when a word enters the speech act, it can have a different semantic content under the influence of many factors, such as the goals of the addressee, the context and the background knowledge of the communication participants. Therefore, from the standpoint of pragmatics, based on the relationship between communicators, there are three situations in which indefinite reference and the semantics of doubt can be realized simultaneously. These 3 situations are: 1) the speaker knows the object inaccurately, the listener knows the object of speech; 2) the speaker knows the object inaccurately, the listener does not know the object of reference; 3) the speaker knows the object but, for whatever reason, does not want the listener to know that it is the object in question. In the third situation, depending on the listener's consciousness, two options are possible: 1) the listener and the speaker have common knowledge, with the listener being one of the insiders of the event described by the speaker, so he knows the speech object, and then a situation of certainty is formed; 2) the listener does not know or does not know exactly the speech object, then an uncertainty situation occurs. Based on row data from the texts of modern mass media, we found out that indefinite reference and the semantics of doubt are emphasized with the help of different linguistic means. Given the results of the analysis of the linguistic data, we consider that indefinite reference and the semantics of doubt are two different sides of the same phenomenon, and they complement each other.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85019358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE PROVING OF THE CATHOLIC DOCTRINE OF THE PRIMACY OF THE POPE BY THE UKRAINIAN POLEMICIST THEODORE SKUMYNOVYCH 乌克兰辩论家西奥多·斯库米诺维奇证明了天主教教义中教皇的首要地位
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728-2659.2023.34.25
R. Tkachuk
{"title":"THE PROVING OF THE CATHOLIC DOCTRINE OF THE PRIMACY OF THE POPE BY THE UKRAINIAN POLEMICIST THEODORE SKUMYNOVYCH","authors":"R. Tkachuk","doi":"10.17721/1728-2659.2023.34.25","DOIUrl":"https://doi.org/10.17721/1728-2659.2023.34.25","url":null,"abstract":"The article reveals the arguments of the primacy of the Pope in the universal church given by the Ukrainian Catholic polemicist Theodore Skumynovych in the work \"Przyczyny porzucenia Disuniey przezacnemu narodowi ruskiemu podane\" (1643). Justifying the supremacy of the Roman cathedra, the writer gave an \"argument from history\" that Pope Sylvester I, having elevated the bishop of Byzantium Mitrophan to the patriarchal title, founded the Patriarchate of Constantinople. In the context of the history of the Byzantine Church, the Catholic writer raised the question of the legality of the Patriarchs of Constantinople use of the title \"oecumenicus episcopus\", which the bishops of the Eastern Churches called Pope Leo I at the Council of Chalcedon (451). It is revealed the details of the dispute between Pope Gregory the Great and Patriarch John IV the Faster concerning the naming of the Patriarch of Constantinople as an \"oecumenicus episcopus\". Theodore Skumynovych considered the historical facts of the appointment and displacement of the first hierarchs of the East to be proof of the judicial supremacy of Rome. In particular, the polemicist talked about the restoration of Athanasius the Great and Paul I in the episcopal cathedra by Pope Julius I. From the \"Poluustav\" of the Vilnius Holy Spirit Monastery the writer cited the story of the appointment of St. Hippolytus of Rome by the Pope as bishop of Portuen. Proving the primacy of the Roman Church, Theodore Skuminovych relied on the facts of the anathematization of the Byzantine emperors and first hierarchs by the bishops of Rome. The most persuasive example of this was the story of the exile of John Chrysostom from the Constantinople's cathedra. The article provides some details of the episcopal ministry of John Chrysostom, such as: the gist of church reforms, relations with the imperial court and Theophilus of Alexandria and also the appeal to Pope Innocent I. The focus of Theodore Skuminovich's attention is the anathema pronounced by Pope Innocent I against Emperor Arcadius, Eudoxia and the dead at that time Patriarch Arsakiy. The return by Pope Nicholas I to the patriarchal cathedra in Constantinople of Patriach Ignatius served to the polemicist as an argument in favor of the primacy of the Pope. In the story about the displacement of Patriarch Photius, the writer mentioned the Fourth Council of Constantinople (869), which in the Catholic Church is considered the Eighth Ecumenical Council. The Other proofs of the supremacy of the Pope were the information from the lives of Maxim the Confessor, Stephen the New and Theodorit the Studite.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80991867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PATHOGENETIC ASPECTS OF POST-COVID-19 COMPLICATIONS IN THE BLOOD COAGULATION SYSTEM covid -19后凝血系统并发症的发病机制
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1728.2748.2023.92.17-21
L. Kot, D. Ostapchenko, Oleksandra Basovska, O. Kolenchenko, O. Korotkyi
{"title":"PATHOGENETIC ASPECTS OF POST-COVID-19 COMPLICATIONS IN THE BLOOD COAGULATION SYSTEM","authors":"L. Kot, D. Ostapchenko, Oleksandra Basovska, O. Kolenchenko, O. Korotkyi","doi":"10.17721/1728.2748.2023.92.17-21","DOIUrl":"https://doi.org/10.17721/1728.2748.2023.92.17-21","url":null,"abstract":"Disorders in the blood coagulation system play an important role in the pathogenesis and clinical manifestations of COVID-19 both during the acute phase of the disease and in the post-infectious period. The coronavirus disease is associated with a high risk of thrombotic and thromboembolic complications due to a prolonged state of hypercoagulation, which can occur even after recovery. Despite the extremely large amount of scientific data, the pathophysiological aspects of SARS-CoV-2 infection remain uncertain. The presented review summarizes the results of modern scientific research on pathological changes in the hemostasis system that can occur against the background of the transferred coronavirus disease, and considers the main mechanisms of the development of COVID-19-associated coagulopathies. From scientometric databases PubMed, Scopus, Web of science, ScienceDirect, Google Scholar, etc. the latest publications devoted to this issue were selected and analyzed. Hemostasis is a dynamic, tightly regulated process which is provided by three closely interrelated links: coagulation, anticoagulation, and fibrinolytic. Activation of the coagulation cascade and the platelet link of hemostasis, which causes a prothrombotic state in convalescent patients with COVID-19, is primarily associated with dysregulation of the renin-angiotensin system, a long-term local and systemic inflammatory reaction, an increase in the immune response due to the release of pro-inflammatory mediators that interact with platelets, stimulate the expression of tissue factor, suppress the fibrinolytic system and lead to dysfunction of the endothelial cells of blood vessels, triggering thrombogenesis. Understanding the pathogenetic mechanisms of post-COVID-19 complications and monitoring the main markers of hemostasis (level of D-dimer, fibrinogen, prothrombin time, platelet count, etc.) are important for the timely detection of disorders in the blood coagulation system, and make it possible, depending on the clinical situation, to take timely measures for their correction at various stages of pathology development.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81330873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of hidden periodicities in models with discrete time and long range dependent random noise 具有离散时间和长程相关随机噪声的模型中隐含周期性的检测
Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria Pub Date : 2023-01-01 DOI: 10.17721/1812-5409.2023/1.7
A. Ivanov, I. V. Orlovskyi
{"title":"Detection of hidden periodicities in models with discrete time and long range dependent random noise","authors":"A. Ivanov, I. V. Orlovskyi","doi":"10.17721/1812-5409.2023/1.7","DOIUrl":"https://doi.org/10.17721/1812-5409.2023/1.7","url":null,"abstract":"Trigonometric regression models take a special place among various models of nonlinear regression analysis and signal processing theory. The problem of estimating the parameters of such models is called the problem of detecting hidden periodicities, and it has many applications in natural and technical sciences. The paper is devoted to the study of the problem of detecting hidden periodicities in the case when we observe only one harmonic oscillation with discrete time, where random noise is a local functional of Gaussian random sequence with singular spectrum. In particular, the random sequence in the model can be strongly dependent. For estimation of unknown parameters the periodogram estimator is chosen. Sufficient conditions of the consistency of the amplitude and angular frequency periodogram estimator of the model described above are obtained in the paper. The proof of Lemmas 1 and 2 gave an important asymptotic properties of the random noise functional related to the periodogram estimator which necessary for the proof of the main results. Series expansion of random noise in terms of Hermite polynomials and the Diagram formula are main tools that were used to obtain this lemmas.","PeriodicalId":33822,"journal":{"name":"Visnik Kiivs''kij nacional''nij universitet imeni Tarasa Sevcenka Istoria","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78910286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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