1,323 research outputs found
Doctor Ivan Lutsenko: myths and facts
No full textНа основе архивных данных, впервые введенных в научный оборот автором, а также критического анализа литературы прослеживается жизненный путь доктора медицины Ивана Митрофановича Луценко (1864–1919), который вошел в историю как активный деятель эпохи гражданской войны на Украине. Автор полемизирует с теми историками, которые видят в Луценко героя, «украинца нового типа», и обосновывает точку зрения, согласно которой И.М. Луценко – украинский ультранационалист, русофоб и антисемит.Based on the data from the archives, which the author is first to introduce to the scientific circulation, and a critical analysis of the literature, we observe the life’s journey of a medical doctor Ivan Mitrofanovich Lutsenko (1864–1919), whom history presents as an active figure in the epoch of the civil war in Ukraine. The author polemicizes with the historians, who see Lutsenko as a hero, “a new kind of Ukrainian”, and substantiates a point of view according to which, I. M. Lutsenko is an ultranationalist, Russophobe and an anti-Semite
Cossack idea in activities of leader of the Ukrainian national movement Ivan Lutsenko
No full textМетою цієї статті є дослідження діяльності одного з лідерів українського національного руху в Одесі Івана Митрофановича Луценка (1863–1919), що була спрямована на відродження українських козацьких традицій в історичних умовах початку ХХ ст., передусім у процесі Української революції. І. Луценко послідовно прагнув сформувати загони вільного козацтва й у важких умовах зовнішніх та внутрішніх загроз і дещо досяг у цьому напрямі. Цінним є теоретичний публіцистичний доробок І. Луценка присвячений осмисленню феномену історії українського козацтва у порівняльному контексті.The purpose of this article is to study the activities of Ivan Mitrofanovich Lutsenko (1863–1919) about his activities, which were aimed at popularizing the history of the Ukrainian Cossacks, the struggle for the spread of the Cossack worldview and spiritual values. I seek to deepen the study of this issue, based on previous research. The corresponding image of I. Lutsenko was reflected in the first essays-memoirs about him, the authors of which were his friends. G. Zlenko, T. Vintskovsky, V. Lobodaev and others wrote about I. Lutsenko as an adherent of the Cossack idea. I. Lutsenko was born in Poltava region in a family that probably had Cossack roots. In 1908, the first Cossack text by I. Lutsenko was published in the Kyiv newspaper Rada, which had not yet been taken into account by his biographers, including us. The Odessa doctor's note was devoted to the issue of P. Polubotko's treasures, which was relevant in Ukraine in the early twentieth century and then in the 1990s. The thesis about the purpose of these treasures caused doubts in I. Lutsenko, but instead he denied the opinion of D. Yavornytsky that this story is a fabrication. The apogee of the realization of these ideas precisely because of the idea of the revival of the Cossack ethos fell on the period of the Great War and the Ukrainian Revolution of 1917–1921. Many sources and memoirs reflect the contribution of I. Lutsenko during the Ukrainian revolution in the formation of detachments of free Cossacks. I. Lutsenko zealously undertook to implement the decision of the General Cossack Council on the organization of free Cossacks, especially in the regions that still "breathed" the Cossack history and traditions: Katerynoslav, Poltava, Kherson. I. Lutsenko founded and headed the section of free Cossacks at the Odesa Ukrainian Military Council. I. Lutsenko's efforts aimed at forming the neo-Cossack idea and movement were also embodied in his writing of a number of articles on relevant topics, which were published in the Odesa editions of 1917–1918. The basis of the conceptual vision of the doctor of the Ukrainian Cossacks was antiquity and longevity, confidence that historical traditions are the foundation of modernity. He traces the origins of the Cossacks to the times of Russia, the prince's wife and the viche tradition. I. Lutsenko portrayed the social system of the Zaporizhzhya Sich in absolutely ideal tones as the embodiment of the socialist and democratic ideals that humanity dreams of. I. Lutsenko's belief in the success of the revival of the Cossacks was based on his belief in the organic nature of this idea for the Ukrainian people and its immortality. I. Lutsenko considered the hope of external support instead of belief in the strength of his own people to be a tragic historical mistake of Ukrainians. Thus, we can conclude that in general I. Lutsenko's activity was the development of populist traditions of perception of the Cossacks, but in the extreme conditions of the revolution he was one of the few people in the south of Ukraine who modernized this tradition, laid the foundation for the future state vision of the Cossack phenomenon
Performance Evaluation of the Classic McEliece Key Encapsulation Algorithm
No full textIn late 2016, the US NIST announced a post-quantum cryptography open competition to select public-key cryptoalgorithms (digital signature, asymmetric encryption, and key encapsulation) suitable for use when quantum computing is widely available. Based on the results of the 2nd round of the competition, several solutions were selected that could potentially be standardized as post-quantum cryptographic algorithms. In this article, we are looking at one of the bids based on codes. The Classic McEliece key encapsulation algorithm is a variant of the well-known (over 40 years) public key cryptosystem in codes. We investigate the various characteristics of the Classic McEliece, in particular, we provide estimates of its performance using various computing platforms and testing technologies
Cossack idea in activities of leader of the Ukrainian National Movement Ivan Lutsenko at the beginning of the XX century
No full textМетою цієї статті є дослідження діяльності
одного з лідерів українського національного руху в Одесі
Івана Митрофановича Луценка (1863–1919), що була
спрямована на відродження українських козацьких
традицій в історичних умовах початку ХХ ст., передусім
у процесі Української революції. І. Луценко послідовно
прагнув сформувати загони вільного козацтва й у важких
умовах зовнішніх та внутрішніх загроз і дещо досяг у
цьому напрямі. Цінним є теоретичний публіцистичний
доробок І. Луценка присвячений осмисленню феномену
історії українського козацтва у порівняльному
контексті.The purpose of this article is to study the activities of Ivan
Mitrofanovich Lutsenko (1863–1919) about his activities, which
were aimed at popularizing the history of the Ukrainian
Cossacks, the struggle for the spread of the Cossack worldview
and spiritual values. I seek to deepen the study of this issue,
based on previous research. The corresponding image of
I. Lutsenko was reflected in the first essays-memoirs about him,
the authors of which were his friends. G. Zlenko, T. Vintskovsky,
V. Lobodaev and others wrote about I. Lutsenko as an adherent
of the Cossack idea. I. Lutsenko was born in Poltava region in a
family that probably had Cossack roots. In 1908, the first
Cossack text by I. Lutsenko was published in the Kyiv
newspaper Rada, which had not yet been taken into account by
his biographers, including us. The Odessa doctor's note was
devoted to the issue of P. Polubotko's treasures, which was
relevant in Ukraine in the early twentieth century and then in
the 1990s. The thesis about the purpose of these treasures
caused doubts in I. Lutsenko, but instead he denied the opinion
of D. Yavornytsky that this story is a fabrication. The apogee of
the realization of these ideas precisely because of the idea of the
revival of the Cossack ethos fell on the period of the Great War
and the Ukrainian Revolution of 1917–1921. Many sources and
memoirs reflect the contribution of I. Lutsenko during the
Ukrainian revolution in the formation of detachments of free
Cossacks. I. Lutsenko zealously undertook to implement the
decision of the General Cossack Council on the organization of
free Cossacks, especially in the regions that still "breathed" the
Cossack history and traditions: Katerynoslav, Poltava,
Kherson. I. Lutsenko founded and headed the section of free Cossacks at the Odesa Ukrainian Military
Council. I. Lutsenko's efforts aimed at forming the neo-Cossack idea and movement were also embodied
in his writing of a number of articles on relevant topics, which were published in the Odesa editions of
1917–1918. The basis of the conceptual vision of the doctor of the Ukrainian Cossacks was antiquity and
longevity, confidence that historical traditions are the foundation of modernity. He traces the origins of
the Cossacks to the times of Russia, the prince's wife and the viche tradition. I. Lutsenko portrayed the
social system of the Zaporizhzhya Sich in absolutely ideal tones as the embodiment of the socialist and
democratic ideals that humanity dreams of. I. Lutsenko's belief in the success of the revival of the
Cossacks was based on his belief in the organic nature of this idea for the Ukrainian people and its
immortality. I. Lutsenko considered the hope of external support instead of belief in the strength of his
own people to be a tragic historical mistake of Ukrainians. Thus, we can conclude that in general
I. Lutsenko's activity was the development of populist traditions of perception of the Cossacks, but in the
extreme conditions of the revolution he was one of the few people in the south of Ukraine who modernized this tradition, laid the foundation for the future state vision of the Cossack phenomenon
Vertical Structure of the Milky Way Disk with Gaia DR3
No full textUsing a complete sample of about 330,000 dwarf stars, well measured by Gaia DR3, limited to the galactic north and south solid angles (Formula presented.) and up to a vertical distance of 2 kpc, we analyze the vertical structure of the Milky Way stellar disks, based on projected tangential velocities. From selected subsamples dominated by their corresponding population, we obtain the thin and thick disk scale heights as (Formula presented.) pc and (Formula presented.) pc, respectively. Then from the simultaneous fitting of the sum of two populations over the whole sample, assuming these scale heights, we estimate the thick-to-thin disk number density ratio at the galactic plane to be (Formula presented.), which is consistent with a previous result by the authors: in the galactic plane there is a significant number of thick disk stars, possibly as many as thin disk ones, which also points to the existence of more thick disk stars than generally thought. The overall fit does not closely follow the data for (Formula presented.) pc and points to the presence of more stars beyond the thin disk that cannot be accounted for by the two-disk model
Characteristics of lifestyle and attitudes toward motherhood of surrogate mothers in Ukraine
No full textСтаття О.Л. Луценко, В.Р. Цокоти «Особливості способу життя та ставлення до материнства у сурогатних матерів в Україні» націлена на вивчення суб’єктивного ставлення майбутніх сурогатних матерів до вагітності та сурогатного материнства. До завдань дослідження відносилося виявлення особливостей їх соціальної ситуації, способу життя, вольових, моральних, емоційних і мотиваційних якостей, що можуть частково обумовлювати рішення стати сурогатною матерю. 28 жінок, включених у програму сурогатного материнства та три групи порівняння з 20-ма особами в кожній (жінки без дітей, з 1-2 дітьми та багатодітні) відповіли на авторське напівструктуроване інтерв’ю з 25 питань. Виявилося, що майбутні сурогатні матері відрізняються від груп порівняння меншим рівнем освіти, більш частою відсутністю чоловіка або розлученням в сімейній ситуації, недостатньо задовільними житловими умовами, браком матеріального забезпечення. Вони менш ранимі, не схильні до тривалих негативних емоційних станів, мають менше страхів, пов’язаних з вагітністю та пологами, набагато більш позитивно ставляться до сурогатного материнства.The article of O. Lutsenko, V. Tsokota “The characteristics of lifestyle and attitudes to motherhood of surrogate mothers in Ukraine” is aimed to study surrogate mothers’ attitudes to pregnancy and surrogate motherhood. The objectives of the study were to identify the characteristics of their social situation, lifestyle, volitional, moral, emotional and motivational qualities that can partially determine the decision to become a surrogate mother. 28 women included in the program of surrogate motherhood and three comparison groups of 20 people (the women without children, with 1-2 children and with many children) were interviewed using a semi-structured authors’ interview of the 25 questions. It was found that the prospective surrogate mothers differ from comparison groups by less education, more frequent absence of husband or divorce in the family situation, not entirely satisfactory living conditions, lack of material support. They are less vulnerable, are not prone to long-term negative emotional states, have fewer fears associated with pregnancy and childbirth, and are much more positive about the surrogacy
Characteristics of lifestyle and attitudes toward motherhood of surrogate mothers in Ukraine
No full textСтаття О.Л. Луценко, В.Р. Цокоти «Особливості способу життя та ставлення до материнства у сурогатних матерів в Україні» націлена на вивчення суб’єктивного ставлення майбутніх сурогатних матерів до вагітності та сурогатного материнства. До завдань дослідження відносилося виявлення особливостей їх соціальної ситуації, способу життя, вольових, моральних, емоційних і мотиваційних якостей, що можуть частково обумовлювати рішення стати сурогатною матерю. 28 жінок, включених у програму сурогатного материнства та три групи порівняння з 20-ма особами в кожній (жінки без дітей, з 1-2 дітьми та багатодітні) відповіли на авторське напівструктуроване інтерв’ю з 25 питань. Виявилося, що майбутні сурогатні матері відрізняються від груп порівняння меншим рівнем освіти, більш частою відсутністю чоловіка або розлученням в сімейній ситуації, недостатньо задовільними житловими умовами, браком матеріального забезпечення. Вони менш ранимі, не схильні до тривалих негативних емоційних станів, мають менше страхів, пов’язаних з вагітністю та пологами, набагато більш позитивно ставляться до сурогатного материнства.The article of O. Lutsenko, V. Tsokota “The characteristics of lifestyle and attitudes to motherhood of surrogate mothers in Ukraine” is aimed to study surrogate mothers’ attitudes to pregnancy and surrogate motherhood. The objectives of the study were to identify the characteristics of their social situation, lifestyle, volitional, moral, emotional and motivational qualities that can partially determine the decision to become a surrogate mother. 28 women included in the program of surrogate motherhood and three comparison groups of 20 people (the women without children, with 1-2 children and with many children) were interviewed using a semi-structured authors’ interview of the 25 questions. It was found that the prospective surrogate mothers differ from comparison groups by less education, more frequent absence of husband or divorce in the family situation, not entirely satisfactory living conditions, lack of material support. They are less vulnerable, are not prone to long-term negative emotional states, have fewer fears associated with pregnancy and childbirth, and are much more positive about the surrogacy
Statistical testing of blockchain hash algorithms
No full textVarious methods are used for statistical testing of cryptographic algorithms, for example, NIST STS (A Statistical Test Suite for the Validation of Random Number Generators and Pseudo Random Number Generators for Cryptographic Applications) and DIEHARD (Diehard Battery of Tests of Randomness). Tests consists of verification the hypothesis of randomness for sequences generated at the output of a cryptographic algorithm (for example, a keys generator, encryption algorithms, a hash function, etc.). In this paper, we use the NIST STS technique and study the statistical properties of the most common hashing functions that are used or can be used in modern blockchain networks. In particular, hashing algorithms are considered which specified in national and international standards, as well as little-known hash functions that were developed for limited use in specific applications. Thus, in this paper, we consider the most common hash functions used in more than 90% of blockchain networks. The research results are given as average by testing data of 100 sequences of 108 bytes long, which means that is, the size of the statistical sample for each algorithm was 1010 bytes. Moreover, each test (for each of the 100 sequences) was considered as an independent observation. In addition, the article presents statistical portraits for each algorithm under study (diagrams of the numbers of passing each test)
NIST PQC: Code-based CryptoSystems*
No full textThe code-based schemes, which were submitted to the contest of post-quantum crypto algorithms NIST PQC, are studied in this work. The general characteristics of the algorithms are explored and basic properties and parameters are estimated. A comparative analysis of the electronic digital signature schemes, public-key cryptosystems and key encapsulation schemes are carried out according to the criteria of speed and length of the main cryptographic parameters
Studies on statistical analysis and performance evaluation for some stream ciphers
No full textThis paper presents the results of the comparative analysis of safety statistics and performance of encryption, the Strumok stream symmetric cipher (proposed for the national encryption standard of Ukraine) with other known cryptographic transformation algorithms, such as SALSA20, SNOW2.0, HC, AES with usages in stream mode, etc. They are accepted as national, international standards or are presented by the New European Schemes for Signatures, Integrity, and Encryptions (NESSI), Cryptography Research and Evaluation Committees (CRYPTREC) and others. The result of safety statistics is an analysis of the cryptographic properties of the output sequences using statistical test sets developed by the National Institute of Standards and Technology (NIST STS) and the DIEHARD tests. The result of the study of performance is the evaluation of the use of central processing unit (CPU) time to convert one octet of data to 64-bit computing platforms, following the test profile used in the eSTREAM contest
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