516 research outputs found

    Limonius (Pheletes) californicus

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    Within the framework of this work, the type material (two syntypes) of Cardiophorus californicus Mannerheim, 1843 was studied in detail; it was photographed. The author of the original description did not identify the holotype, which, in accordance with the provisions of the International Code of Zoological Nomenclature, entails the need to distinguish the lectotype and paralectotype for the subsequent supposed redescription of the species

    On the class of limit distributions for thinning currents of homogeneous events

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    The abstracts (in two languages) can be found in the pdf file of the article. Original author name(s) and title in Russian and Lithuanian: И. Н. Коваленко, О классе предельных распределений для редеющих потоков однородных событий I. N. Kovalenko, Apie homogeninių įvykių retėjančių srautų ribinių pasiskirstymų klas

    On the class of limiting distributions for a sequence of series of sums of independent renewals

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    The abstracts (in two languages) can be found in the pdf file of the article. Original author name(s) and title in Russian and Lithuanian: И. И. Коваленко, О классе предельных распределений для последовательности серий сумм независимых процессов восстановления I. N. Kovalenko, Apie nepriklausomų atstatymo procesų serijų sekos sumų ribinių pasiskirstymų klas

    On some research guidelines initiated by articles of Academician I.N. Kovalenko

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    Наведено огляд деяких напрямків досліджень, які були ініційовані І.М. Коваленком та знайшли відображення у сумісних роботах з автором даної статті. До них відносяться: метод «штучних» моментів регенерації, асимптотична нечутливість, метод Монте-Карло та методи зменшення дисперсії оцінок, принцип монотонних відмов.A review of some research guidelines which were initiated by I.N. Kovalenko and used in joint articles with the author is given. These are: method of «artificial» regeneration moments, asymptotic insensitivity, Monte Carlo method and variance reduction methods, principle of monotone failures

    Advanced GPR data processing algorithms for detection of anti-personnel landmines

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    Ground Penetrating Radar (GPR) is seen as one of several promising technologies aimed to help mine detection. GPR is sensitive to any inhomogeneity in the ground. Therefore any APM regardless of the metal content can be detected. On the other hand, all the inhomogeneities, which do not represent mines, show up as a clutter in GPR images. Moreover, it is known that reflectivity of APM is often weaker than that of stones, pieces of shrapnel and barbed wire, etc. Altogether these factors cause GPR to produce unacceptably high false alarm rate whilst it reaches the 99.6% detection rate which is prescribed by an UN resolution as a standard for humanitarian demining. The main goal of the work presented in the thesis is reduction of the false alarm rate while keeping the 99.6% detection rate intact. To reach this goal a set of data processing algorithms is developed and organized into an unsupervised target detection scheme. These algorithms are dedicated to clutter suppression and simultaneous detection of APM signatures in both GPR raw data and images resulting from them. The developed algorithms constitute together the following achievements: - An unsupervised generalized likelihood ratio test-based feature fusion framework; - A waveform based target detection/clutter suppression; - Advanced methods for construction of GPR maps The unsupervised generalized likelihood ratio test based feature fusion framework, which has been suggested in this thesis, takes as input an arbitrary amount of confidence maps corresponding to training and testing sites. The output of the framework is a list of target locations. The framework uses training data which can come from independent and non-coincident measurements with different radars and even sensors. The data from each of the sensors are processed independently to result in several detection lists. Every detection in these lists is accompanied with one or several features each represented by a scalar number. A decision level fusion is applied to reconcile the lists i.e. to associate the detections in them with the appropriate physical locations. Then the binary hypothesis testing is executed for the reconciled locations separating them on clutter and target lists. The generalized likelihood ratio test is employed to this end. The feature pre-normalization via Johnson's transform in suggested by the author to be used prior the testing. It is shown in the thesis that such approach outperforms the direct generalized likelihood ratio testing ad. hoc. based fusion techniques. The waveform based target detection/clutter suppression algorithm, which detects disc-shaped APM in heavy clutter with low false alarm rate, has been developed by the author. The algorithm detects a class of low-metal APM with a cylindrical shape (such as PMN2, M14, and NR22 etc.) using just a single reference target return. It suppresses clutter responses from friendly objects while marking the presence of targets with sharp monopulses and preserving the spatial pattern inherent to localized objects. The algorithm is insensitive to the reflectivity and physical diameter of the target and also tolerates certain volatility in the properties of the hosting soil. This algorithm is superimposed with a focusing technique to further improve the mine detectability. A number of improved projection techniques, which allow better detection of APM in focused GPR images is also developed by the author. These utilize the prior knowledge on the character of the spatial correlation properties of target images and allow detection of the burial depth of the target. The algorithms suggested in the thesis were tested on the data acquired during two separate measurement campaigns held at the special facilities for testing of mine detection systems. It has been shown, that the fused multi-feature detection that uses the algorithms reported in this thesis, significantly decreases the false alarm rate in comparison to the previously published studies for the same minefields.Electrical Engineering, Mathematics and Computer Scienc

    The book, dedicated to the plants of grass and subshrub layer – Kovalenko I. M. Ecology of the lower layer plants of forest ecosystems. – Sumy : University Book, 2015. – 360 p.

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    A large array of information regarding the study of forest vegetation, represented by a great number of scientists, demonstrates the relevance of this direction and at the same time the gaps of existing research on this field. The author of the book is Ihor Mykolayovych Kovalenko, a representative of Sumy ecologists and botanists, a native of the scientific school of the well-known biogeocenologist and ecologist Julian A. Zlobin. The monograph is structured into 8 chapters, conclusions and a list of references. It is worth noting the presence of numerous diagrams, tables and figures which appropriately complement the text material. The peculiarity of the work is that the author, focusing on the lower layer plants of forest ecosystems, has also shown and analyzed the impact of various components of forest ecosystems on each other. This approach is characterized by a complexity which certainly enhances the practical value of the publication and the results it provides. The book is a comprehensive study of the plants of grass and subshrub layer of forest ecosystems. However, the author focuses on the need to conduct the constant monitoring of individual components and ecosystems in general, limited to the nature reserve areas. This publication may be recommended as a methodological manual while conducting such research. Outline of the book sections presented above clearly demonstrates a comprehensive and in-depth study of the lower layer plants of forest ecosystems in the north-east of Ukraine. In general, we believe that the reviewed scientific work of I. M. Kovalenko «Ecology of the lower layer plants of forest ecosystem» is a major contribution to the scientific literature on ecology and sozology. It will undoubtedly find a positive response in the wide circles of ecologists, geobotanists and phytosozologs. </jats:p

    Review by the official opponent of Doctoral (Law) thesis (major 12.00.08 - criminal law and criminology; criminal-execution law): “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V. I. Kovalenko

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    Objective: to comprehensively analyze the Doctoral dissertation “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V. I. Kovalenko, successfully defended in 2017 at Dissertation Council of All-Russia Scientific-research Institute of the Russian Ministry of Internal Affairs.Methods: dialectical approach to the cognition of social phenomena, enabling to analyze them in the historical development and functioning in the context of a set of objective and subjective factors, which determined the choice of the following research methods: formal-legal, comparative-legal, etc.Results: the author investigates the concept of the system of counteracting the criminal exploitation of humans, its structure, the main trends of criminal exploitation of humans and the possibility of optimal response of the state and the society to this phenomenon. The work focuses on the unconditional benefits of the study, primarily for criminologists studying the problems of combating criminal exploitation of humans. A number of the dissertation provisions are critically analyzed. The author makes the conclusion about the need for criminological assessment of the exploitation of humans without violence and suggests improving the proposals on forming the Conception of prevention of humans’ criminal exploitation. The reviewer expressed his position on the basic concepts and categories used in the dissertation research, such as “personal freedom”, “conceptual bases”, “criminal exploitation”, and reveals their vision in relation to the conducted research.Scientific novelty: the author gives a legal assessment of Doctoral dissertation “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V. I. Kovalenko, reveals its main advantages and the provisions requiring additional scientific study or argumentation.Practical significance: the main provisions and conclusions of the article can be used in scientific and pedagogical activity when considering issues related to theoretical and applied problems of combating criminal exploitation of humans

    Review by the official opponent of Doctoral (Law) thesis (major 12.00.08 - criminal law and criminology; criminal-execution law): “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V. I. Kovalenko

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    Objective: to comprehensively analyze the Doctoral dissertation “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V.I. Kovalenko, successfully defended in 2017 at Dissertation Council of All-Russia Scientific-research Institute of the Russian Ministry of Internal Affairs.Methods: dialectical approach to the cognition of social phenomena, enabling to analyze them in the historical development and functioning in the context of a set of objective and subjective factors, which determined the choice of the following research methods: formal-legal, comparative-legal, etc.Results: the author investigates the concept of the system of counteracting the criminal exploitation of humans, its structure, the main trends of criminal exploitation of humans and the possibility of optimal response of the state and the society to this phenomenon. The work focuses on the unconditional benefits of the study, primarily for criminologists studying the problems of combating criminal exploitation of humans. A number of the dissertation provisions are critically analyzed. The author makes the conclusion about the need for criminological assessment of the exploitation of humans without violence and suggests improving the proposals on forming the Conception of prevention of humans’ criminal exploitation. The reviewer expressed his position on the basic concepts and categories used in the dissertation research, such as “personal freedom”, “conceptual bases”, “criminal exploitation”, and reveals their vision in relation to the conducted research.Scientific novelty: the author gives a legal assessment of Doctoral dissertation “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V.I. Kovalenko, reveals its main advantages and the provisions requiring additional scientific study or argumentation.Practical significance: the main provisions and conclusions of the article can be used in scientific and pedagogical activity when considering issues related to theoretical and applied problems of combating criminal exploitation of humans

    Evaluation of the professional teaching competence: chinese experience

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    Zhernovnykova Oksana, Kovalenko Oksana, Mkrtichian Oksana, Zelenska Liudmyla. Evaluation of the professional teaching competence: chinese experience. Journal of Education, Health and Sport. 2020;10(3):199-207. eISSN 2391-8306. DOI http://dx.doi.org/10.12775/JEHS.2020.10.03.022 https://apcz.umk.pl/czasopisma/index.php/JEHS/article/view/JEHS.2020.10.03.022 https://zenodo.org/record/3757294 The journal has had 5 points in Ministry of Science and Higher Education parametric evaluation. § 8. 2) and § 12. 1. 2) 22.02.2019. © The Authors 2020; This article is published with open access at Licensee Open Journal Systems of Nicolaus Copernicus University in Torun, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 09.03.2020. Revised: 18.03.2020. Accepted: 31.03.2020. UDC 378.147:372 EVALUATION OF THE PROFESSIONAL TEACHING COMPETENCE: CHINESE EXPERIENCE Oksana Zhernovnykova [email protected] Oksana Kovalenko [email protected] Oksana Mkrtichian [email protected] Liudmyla Zelenska [email protected] H. S. Skovoroda Kharkiv National Pedagogical University, Ukraine Abstract The article describes the rules and procedures for hiring and evaluating the professional competence of teachers on the example of China, where there is a system for evaluating the professional competence of teachers. Keywords: teachers’ professional competence; Chinese evaluation experience; quality of general education; tests on pedagogy and teaching methods

    Review by the official opponent of Doctoral (Law) thesis (major 12.00.08 - criminal law and criminology; criminal-execution law): “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V. I. Kovalenko

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    Objective: to comprehensively and objectively assess the Doctoral dissertation “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V.I. Kovalenko, successfully defended in 2017 at Dissertation Council of All-Russia Scientific-research Institute of the Russian Ministry of Internal Affairs.Methods: dialectical approach to cognition of social phenomena using general scientific methods of cognition, based on it:analysis, synthesis, comparison, etc.Results: the author’s conception is analyzed of the system of combating criminal exploitation of a person under the new social conditions, as well as its structure, the main trends of criminal exploitation of a human and the possibility of an adequate response of the state and society to this phenomenon. Attention is drawn to the unconditional benefit of the performed research, first of all, for those who study the criminological problems of combating criminal exploitation of humans. Some provisions of the dissertation research are critically evaluated; the author points to the need for a criminological evaluation of the exploitation of humans without the use of violence and suggests improving the applicant’s proposals on forming the conception of preventing criminal exploitation of humans. The article presents the reviewer’s views on the basic doctrinal categories used in the dissertation research, like “personal freedom”, “conceptual foundations”, “criminal exploitation”, and reveals their meaning in relation to the study. This approach emphasizes not only the quality of the research, but also the high qualification of the expert. Scientific novelty: the author gives a legal assessment, an assessment of the Doctoral (Law) thesis “Theoretical and applied issues of counteracting the criminal exploitation of a human (criminological research)” by V.I. Kovalenko is provided, major12.00.08 “Criminal law and criminology; criminal-executive law”; its main advantages and regulations are identified that require additional scientific study or argumentation.Practical significance: the paper allows determining the current state of criminal exploitation of a human and outlining the prospects of its neutralization
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