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The article presented graphical links between some constructive parameters of optical fiber and the parameter - macro bending losses. The graphics are made based on known mathematical model. Dependencies are three-dimensional, for better visualization of complex relationships.
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This article provides an overview of planetary gears that are more widely used based on its many advantages, such as compactness, superimposing speed and torque opportunity to branch power, higher gear ratios of the same volume. Used as gears for gearboxes, motors and flywheels
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Тhis paper introduces a student’s personal assistant known as LISSA (Learning Intelligent System for Student Assistance). The personal assistant is built as a multi-agent system based on JADEX. LISSA operates as an entry point of the Virtual Educational Space (VES). In the paper, the architecture of the personal assistant is considered in more detail
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A number of textbooks on medicinal chemistry and drug design are available on the Polish bookshop market, but there is no textbook on chemoinformatics. The authors of this script intend to fill this gap. Since from its very beginning chemoinformatics is linked to molecular design, we have highlighted the problems of chemoinformatics of drugs in particular. This corresponds to the profile of new specialties, medicinal chemistry and chemoinformatics, launched at the Institute of Chemistry of the University of Silesia. The handbook is intended for students of chemistry and pharmacy who are interested in using computers as a tool supporting research and teaching of these subjects.
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The dissertation entitled The theory of bibliography in the Second Polish Republic provides information on the phenomenon that occurs during the time of the formation of the theoretical basis of bibliography. The work has been aimed at describing the evolution of the theory of the discipline of bibliography. Therefore, the elements of knowledge about bibliography were searched in the works of the first Polish bibliographers to focus on the influence of European trends on the crystallization of the theoretical bibliographical thought and the creation of the centres providing schooling in this discipline in the 19th century in the territory of the Republic of Poland (Krzemieniec, Kraków, Warsaw, Vilnius). It has been pointed out the potentiality of the flourishing of the theory of bibliography in the interwar period, and the contribution of the Bibliographic Institute of the National Library and the Association of Polish Librarians (including congresses of librarians) to the discourse on the subject. The plan, which actually did notachieve its implementation, for establishing the Polish Bibliographic Society, as well as the lecture activity of the local groups of the Association of Polish Librarians in the field of bibliography have been characterized, and bibliography considered as a subject taught in higher schools, secondary schools and during library courses has been discussed. The subsequent chapters comprise the analysis of the theoretical statements by representatives of Polish science (including, among others, Ludwik Bernacki, Leon Bykowski, Kazimierz Dobrowolski, Adam Łysakowski, Zygmunt Mocarski, Jan Muszkowski, Kazimierz Piekarski, Mieczysław Rulikowski, Stefan Vrtel‑Wierczyński), in which they acknowledged bibliography as a practical and supplementary field of knowledge (however they did not decide whether it was an independent discipline or part of bibliology), and as a research method. What is another issue addressed in the work is the subject of bibliography, its methods (bringing the concept of bibliography closer to critical bibliography and analytical bibliography), relationships with other fields of knowledge (mainly with the history of literature), typologies of bibliographic lists, and the theory of the types of bibliography (general bibliography and special bibliography, i.e. relating to disciplines and issues, region, contents of magazines). In addition, the work presents biographies of a group of theoreticians of bibliography, with special emphasis onto educational centres, subjects of their studies, their professional work and the first domain of their postdoctoral degrees. The final part of the work contains the analysis of citations of theoretical publications from the interwar period in textbooks, manuals and monographs published after 1945, the results of which show that there was little interest in the reception of pre‑war materials.
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The article is dedicated to one aspect of the long-lasting life of the Cyrillic alphabet, namely the use of Cyrillic script as base for the Slavonic book publishing in its initial period from the end of the 15th – the 16th centuries. The main goal is to illustrate some peculiarities in the grapheme inventory, and to point out the cultural-historical functions of the early printed Cyrillic, the major of which was the preservation and the reproduction of the religious and spiritual identity. Supplementary, but not less important functions were the creation of cultural communities, the integration of the Bulgarian written legacy in Europe, its cognitive, moral, entertaining function, and others. The statement is subjected to the pursuit of shaping historically the relation between alphabet and identity, which should be realized as value, especially in the year of the Bulgarian presidency of the European Union, and the Cyrillic as one of its symbols.
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The paper presents photovoltaic materials and modern technologies of preparation of excitonic solar cells type ITO/PEDOT:PSS/CH3NH3PbI3/PC61BM/Ag.
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This book guides the reader from the basic concepts of mathematics to more advanced material necessary for the creation of mathematical models in biology and related disciplines. Discrete mathematics and probability theory used in phylogenetics are dealt with at length, as are methods of mathematical analysis employed in biotechnology and ecology. An accessible mathematics text for students of biology, biotechnology, medicine and agricultural studies. A valuable supplement to this text is a workbook prepared by Marek Bodnar. The book may also facilitate contact and collaboration between biologists, mathematicians and physicists.
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This workbook is a supplement to Dariusz Wrzoska's textbook Mathematics for Biologists. The exercises and examples contained here illustrate the concepts discussed in the textbook and help users to understand and master the material. There are numerous examples with full model answers, and also a number of exercises intended for readers to resolve independently. Answers to all exercises (frequently with comments) are located at the end of the workbook.
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Modern Mimesis: Self-Reflexivity in Literature is a passionate defence of philology that traverses the distances from Ancient Hellas to present-day Japan, from Ulysses to robots. This movement follows a logic described by the author as reconceptualization, and creates conceptual nodes configured through horizontal and vertical, temporal and spatial self-reflexive reduplications. The broad arc from the libraries of Alexandria and Pergamum to the mimetic valleys of robotics thus turns out to be underpinned by the reconceptualization of the ancient dispute between ‘analogy’ and ‘anomaly’, turning any attempt at ordering into an ‘endless series of rearrangements’.
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The text contains a review made within the Public Seminar of the Department of „Radio and Television“, held on November 1, 2022, where Raina Konstantinova, Chair of the Public Council of the Bulgarian National Radio, and Prof. Snezhana Popova presented the new book of Assoc. Prof. D.S. Vyara Angelova „The Socialist Bulgarian Radio (1944-1989)“ (University Press „St. Kliment Ohridski“, 2022). We publish both speeches given at the premiere of the book.
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The main objective of this study was to determine the cost-effectiveness of green spaces in controlling environmental and health risks in residential areas. The study aimed at comparing the costs of using green spaces and the costs of conventional infrastructure in controlling environmental and health risks. Many scholars have qualitatively reported that residential home greenery is recognized as an important component for the control of environmental and health risks. However, the cost-effectiveness of green spaces relative to man-made solutions for the same is not documented with certainty. The study deployed a questionnaire, field observation and measurement methods for data collection. The study revealed that, depending on location, residents face five major environmental and health risks; fugitive dust, violent wind, runoffs, animal habitat deterioration, soil erosion and flood water. The percentage of households using green spaces as a strategy for controlling the aforementioned risks is still minimal despite the high monetary saving. The majority of the respondents’ home greeneries are incorrectly orientated and home entrances appear to be more of a factor in determining where green space is located. With exception of risks of run-offs, utilization of green spaces in controlling environmental and health risks saves more than 90% of costs compared to costs for a man-made solution and 61% for run-off control. Results imply that there is a need for advocacy for greater realization of green space as a cost-effective strategy in controlling environmental and health risks among residents, environmentalists, planners and disaster risk practitioners in Dar e salaam City, Tanzania.
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In response to the COVID-19 outbreak in the beginning of 2020, Chinese local governments created a software extension on existing mobile applications to monitor citizens’ movement and collect their health data. Very quickly China’s health code became a key resource for the country’s governments to track and contain COVID-19 cases using time, location, and personal interactions. China’s health code system represents an unprecedented form of “biological” governance, which demonstrates and supports the transformation empowered by digital technologies, enhancing the access to healthcare and fusing together mass surveillance and fundamental public service provision. Digital contact tracing has attracted enormous interest among academics and legislators since the outbreak of COVID-19, which resulted in several policy papers and research works, discussing issues, such as the effectiveness and accuracy of virus detection, as well concerns in regard to discrimination and data privacy. However, most of the articles refers to technologies and its implications in the West, and less to the peculiarities and problems related to the use of Chinese health code. Present research analysis the issues related to difficulties to achieve a balance between China’s “zero-COVID policy” and freedom of movement, as well those regarding multiple health code’s proliferation, health code abuses and misuses by officials who do not want to miss any cases for fear of outbreak or being fired. Since China’s health code system is still far from being centralized and uniform across the country, the mutual recognition system has resulted in considerable problems for those who find themselves in high-risk areas.
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The text explores the digital and documental traces of the journalist Bojan Petrov's on-air legacy, mainly left by his satirical column Fatherland Radio Review. The review was last broadcast on the Politically INcorrect show on the Horizont channel, BNR. There the review was broadcast 7 times from the creation of the programme until the death of its author, but it has a background in previous similar programmes.The analysis traces the problems of the genre definition of fun. Despite the immutable structure of the column and the original approach of the author, inexplicably different interpretations of Petrov's satire lead to its neglect and disappearance.
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The use of expert knowledge is an essential part of media communication, especially during crises. The text highlights basic concepts of expertise, knowledge and journalists' understanding of their usage in media. The text analyzes the point of view of experts towards the critical function of journalism in the recognition of expert knowledge and its dissemination. For this purpose, interviews were conducted with 7 experts who participated in interviews and television shows during various crises. The text is part of a dissertation on "Expert speaking during crises and the critical function of journalism".
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This review aims to bring together two private museums whose theme is largely similar: life in a communist country. The exhibition of the Museum of Memories from Communism in Brașov responded to the shortcomings in Romanian state-owned museums to cover a timeframe from recent history. To put the exhibition into perspective, after I present it and consider its museological features, I briefly bring into discussion the DDR Museum from Berlin. I focus not only on the visible part of the two – that is, the exhibition, but I also go backstage after connecting with those responsible for these two private museological endeavors, in order to discern the collecting undertakings and their role in the wider frame of museums landscape in a former communist country. Finally, after my visiting experience with both exhibitions and an unwilling / unfortunate entanglement with communist practices that are still up and running (the almost-failure of having a form stamped), I reflect on the role of a museum in providing deeper understanding of socio-cultural practices that affect our (not only institutional) lives up to our days.
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„M. H. Maxy: from avant-garde to socialism”, opened on the 28th of December 2023 at the Romanian National Museum of Art, uses a chronological line of events to bring up to date the image of Max Herman Maxy (1895 – 1971), seen as a leading artist with a significant role in the Romanian Avant-garde, but also as the first director of the Romanian National Museum of Art. Subsequently, his contribution to the development of the national art scene can’t be denied in art history. Furthermore, the opening was carefully chosen to mark a symbolic anniversary of 145 years since the first Romanian Jew obtained his citizenship, therefore enhancing the role that the Jew community had in the bloom and spread of the Avant-garde in Europe. The exhibition has a tacit dialogue to the main artistic events which celebrate Timișoara as The Cultural Capital of Europe 2023, the retrospectives dedicated to Victor Brauner and Constantin Brâncuși, suggesting the main artistic pillars in the dawn of Modern Romania.
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The subject of this paper is still not enough explored, not only from the perspective of museum research but also from that of studies belonging to other fields that take into account the need to integrate culture in urban regeneration. Because this topic is current and relevant for the multitude of cultural and social forms in which the museum institution could become a lasting pillar, we believe that our attempt will allow us to sketch an integrative project from which to extract some useful considerations for future research. The conclusions that emerge from positioning the National Museum of Romanian Literature in Bucharest (MNLR), more precisely its cultural hub located in a disadvantaged area, in the epicenter of urban regeneration through culture of the adjacent area, will hopefully be compelling enough to support a cultural axis. Especially since the targeted area (although it has a rich local cultural heritage, which deserves to be capitalized and whose historical memory must be preserved) does not yet experience the long-awaited revival, MNLR - as already demonstrated - can become a crucial actor, together with partners from civil society, in drawing a new cultural axis in the Romanian capital. This could contribute to the transformation of a physically degraded area with precarious living conditions into an engine for integrating culture into the daily concerns of as many fellow citizens as possible, and not only those belonging to the local community. After all, any attempt to achieve a prospective approach focused on the museum institution only validates the generous and mobilizing slogan of ICOM: “Museums have no borders, they have a network”.
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The study presents the graphic works of six modern female artists that are part of the Tulcea Fine Arts Museum`s heritage. Their work, presented in the context of the modern period of development of fine arts in our country, is prefaced by a comparative analysis between feminism and the feminine in art, starting from the general understanding of the concept of feminism. The article aims to promote the graphics collection of the Tulcea museum and to provide a starting point for future analytical studies.
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