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The present paper sums up the results of the Second international Olympiad in financial and actuarial mathematics established by two Bulgarian universities: Economical university-Varna and Higher School of Insurance and Finance-Sofia. The participants were divided into four groups: the junior group – school students 11 – 12 years old, 5 – 6 grades; the middle group – school students 13 – 15 years old, 7 – 9 grades; the higher group – school students 16 – 18 years old, 10 – 11 (12) grades and professional college students; the senior group – University students and citizens, 18+ years old. The Olympiad mission is to draw attention to the importance issue of mathematical knowledge for improving the financial literacy of the population.
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Who is Ivan Stranski, you ask? If you Google his name you will find thousands of sites that talk about him. In fact, the Kossel – Stranski model of crystal growth and the Stranski–Krastanov mode of growth of thin epitaxial films are named after him – just of two of the many scientific ideas and concepts Professor Stranski introduced in science (and through which a whole new field in science was born). Today thousands of physicists, chemists and material scientists all over the world are working in the field of crystal growth, particularly in epitaxial growth and nucleation which are necessary for the invention of new materials and high technologies. In this respect, the life, personality and way of thinking of this remarkable scientist should be of great interest in both beginners and professionals in science. The book describe the life and scientific achievements of Ivan Stranski, Bulgarian – German physical chemist and the father of crystal growth, against the historical backdrop of wars, massacres, and remarkable scientific discoveries in the 20th century. It covers his family roots, which are remarkable in their own right, the life and career both in Bulgaria and Germany (West Berlin), and his scientific achievements, including his most important contribution to the physics of crystal growth. The book captures Professor Stranski’s personality and way of thinking as much as possible from the recollections of his disciples and contemporaries. Short biographical notes about the most renowned students in Bulgaria, Rostislav Kaischew and Lyubomir Krastanov with whom Stranski developed his most fundamental ideas are also included (World Scientific).
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Chemistry Education: Current Bibliography (2018)A list of chosen papers on History and Philosophy of Chemistry, published in 2018 in the basic international journals in the field is presented. The modern trends in educational research in chemistry education are presented by another chosen collection of papers, published in the contemporary literature.
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The 150th anniversary of the discovery of Periodic Table of chemical elements by Dmitri Mendeleev in 1869 will be celebrated in 2019 year. The key role of Mendeleev’s work on elements systematization is presented in brief together with the indispensable efforts of many other chemists too. Different types of Periodic tables and the development of ideas concerning the structure of a table or other graphical representations of the existing state-of-art over years are shown in a more historical point of view.
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The text represents the first period (late 1960s to late 1980s) of the professional development of the historian Vladimir Migev, time when he specialized as a researcher of authoritarianism and authoritarian regime in Bulgaria. The article focuses on the conditions of scholarly work specific to those years (compulsory explanatory models and strict ideological control over interpretations) which left their mark on the concepts used by the historian and on his basic evaluations. At the same time, his contributions to the development of a number of major aspects of Bulgarian authoritarianism are shown.
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This text is written by Professor Boian Mutaftschiev (1932 – 2020). When Mutaftschiev joined the Department of Physical Chemistry of the University of Sofia, Professor Iwan Stranski, who established this University department in 1925, was in Germany without any possibility to came back in Bulgaria again. The meetings of the author with Prof. Stranski abroad are described in the present article.
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Smart city consists of: waste management, smart energy, education, smart communications, smart transportation, traffic management, smart parking, smart streetlights and smart healthcare. All of these areas require management of information safety. Here, the topic is management of information safety in healthcare. The objective is to show the new approach to management of information safety, which involves all employees in this process. Whether manufacturing or service, public or private, organizations increasingly depend on information and communication technology (ICT). ICT presents in such extent that its users are not even aware of its influence. It is a usual part of any organization. However, the dependence on ICT holds a potential hazard for organization’s performance. Some issues about the ICT safety should be addressed in every organization. First, does the management of an organization is aware of the potential risks and problems in the ICT area, such as potential ICT unavailability (risk culture) or accidental damage? Is there a systematic approach to threat identification, vulnerability exploration, and evaluation of the impact of realized threats on the business? Is an organization aware of the value of ICT, which should be treated in the organization as any other asset influencing business efficiency and effectiveness? Preventive and corrective actions (system of controls) are warranted for mitigating the risk of destruction or abuse of ICT. In this paper, we discuss these questions and suggest possible solutions. There are many works about the topic but these are stressed only one segment in management of information safety. We used case study, observation and structure analysis in our exploration. The results will be presented here. The results will be useful for everybody who is worried about information security in organizations. Value of this paper is showing the need of multidisciplinary approach in management of information safety.
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