The financial markets are found to be finite Hilbert space, inside which the stocks are displaying their wave-particle duality. The Reynolds number, an age old fluid mechanics theory, has been redefined in investment finance domain to identify possible explosive moments in the stock exchange. CNX Nifty Index, a known index on the National Stock Exchange of India Ltd., has been put to the test under this situation. The Reynolds number (its financial version) has been predicted, as well as connected with plausible behavioral rationale. While predicting, both econometric and machine-learning approaches have been put into use. The primary objective of this paper is to set up an efficient econophysics’ proxy for stock exchange explosion. The secondary objective of the paper is to predict the Reynolds number for the future. Last but not least, this paper aims to trace back the behavioral links as well.

Final goal of the study is to estimate the cost-effectiveness of electrochemotherapy for the treatment of basal-cell carcinoma and skin melanoma. Paper consists of two parts: the first part presents basic principles and concepts of health technology assessment and cost-effectiveness analysis, and the second part reports an early cost-effectiveness analysis of electrochemotherapy for the treatment of basal-cell carcinoma and skin melanoma that we are developing. Few cost-effectiveness analyses of electrochemotherapy have already been done, but with a lack of information about intervention effectiveness in terms of quality of life, which may result in inaccurate or even inadequate conclusions. In order to obtain the most realistic results, two general Markov models and their reduced versions for initial calculations are presented. The models were designed specifically to assess electrochemotherapy of basal-cell carcinoma and skin melanoma. Also, data required for successful calculations have been identified, some of which are missing and will be collected within different studies which are still under way, including randomized control trials. Additionally, recommendations for data collection process and follow-up reporting are made. With this paper we want to raise awareness about the importance of numeric quality of life reporting and usefulness/meaning of EQ-5D questionnaire that might not be self-evident at first sight, but are crucial for cost-effectiveness analysis.

ABSTRACT In this paper we introduce and study the notion of a graded (strongly) nil clean ring which is group graded. We also deal with extensions of graded (strongly) nil clean rings to graded matrix rings and to graded group rings. The question of when nil cleanness of the component, which corresponds to the neutral element of a group, implies graded nil cleanness of the whole graded ring is examined. Similar question is discussed in the case of groupoid graded rings as well.

Abstract Blidinje lake is an integral part of the Nature Park Blidinje established in 1995. Blidinje lake is largest mountain lake in Bosnia and Herzegovina (B&H) according to the surface and water supplies. Considering the surface, it is surprising to its low depth and large surface changes. Eutrophication is defined as the ‘biological effect of increasing concentrations of plant nutrients in aquatic ecosystems’. Eutrophication results in increased primary production or the production of aquatic plants. It can adversely affect the suitability of the use of water resources for other purposes. Metabolism of shallow lakes is extremely specific such as classical connections; algal biomass with a load of nutrients in shallow lakes can have catastrophic effects. Nutrients that come directly or indirectly into water lead to increase in the amount of algae as well as changes in the composition of phytoplankton, where there is suppression of diatoms and green algae by cyanobacteria. The values of parameters assessing trophic index (Trophic State Index [TSI]) are total phosphorus, chlorophyll a and transparency. This method that generalises numerous data using mathematical equations allows the expression of trophic level. On the basis of earlier studies on physical and chemical parameters of water quality in Blidinje lake, Carlson trophic index was calculated, and based on that assessment, trophic level is given.

In summer of the year 2017, unfortunately, passed away respective academician Zelimir Jaksic, former dean of Faculty of Medicine, University of Zagreb and former Director of “Andrija Stampar” School of Public Health in Zagreb. In 1955, he graduated from the Faculty of Medicine at the University of Zagreb. From 1955 to 1959, he worked in the Department of General Medicine at the Zagreb Primary Health Care Center. He completed residency in the Hygiene and Social Medicine and became specialist in 1960. In 1965, he presented his doctoral dissertation on the topic “Assessment of Diabetes Incidence and its Early Detection”. He was habilitated at the Faculty of Medicine of the University of Zagreb in 1967. Then he was elected as a full professor of Social Medicine at the Faculty of Medicine, University of Zagreb, in 1974. Professor Zelimir Jaksic was a fruitful organizer and researcher of numerous research and field experiments in epidemiology and the prevention of chronic diseases. Special emphasis was placed on the organization of Primary Health Care and Medical Education. From 1972 to 1974, he was the head of the World Health Organization’s Health Service Development Research team in Iran. The head of the Health Care Institute of the School of Public Health from 1975 to 1977, and for two years later he established the Primary Care and General Medicine Department at the Faculty of Medicine, University of Zagreb. The duty of the Director of the School of Public Health “Andrija Stampar” carried from 1978 to 1981. At that time, he established and coordinated international postgraduate courses in “Planning and Management of Primary Health Care in Developing Countries” and “Training of Teachers in General Medical Practice”, and since 1982, he was the Director of the World Health Organization’s Primary Health Care Collaboration Center at the School of National Health “Andrija Stampar”. In 1985 became the main researcher of the international project “Continuous Education for Primary Health Care Using Video and Computer Technologies” in collaboration with Japan. Since 1972 professor Zelimir Jaksic was a regular member of the Academy of Medical Sciences of Croatia. In 1983 he was admitted to the Royal College of General Practitioners in London, and in 1988 he became professor at the Boston University. Professor Jaksic was the main project researcher between Yugoslavia and Japan. From 1987 to 1990, he was a vice dean, and later Dean of the Faculty of Medicine at the University of Zagreb. For his contribution to the Development of General medicine in the world in 1999, at Palma de Mallorca received Hippocrates Medal from the European branch of the World Association of Family Physicians WONCA Europe. In 2005 he was elected to Professor emeritus of the University of Zagreb. Generations of undergraduate and postgraduate students, as well as generations of specialists and specialists of General and Social Medicine will remember professor Jaksic as a calm, patient and good-natured teacher and educator. He was appreciated by his colleagues, associates, students and all the associations. He was a fruitful organizer and scientist especially in the field of epidemiology and the prevention of chronic illnesses, followed by the field of healthcare organization, in particular primary health care, and medical education. Professor Jaksic was a leader or associate at several international scientific projects and international postgraduate courses. For his contribution to the development of General Medicine in the US and worldwide he has received more awards and medals. Professor Jaksic will remain in our memories as a giant of medical education, and his scientific and professional achievements and for the future generations of doctors will be a lasting impetus and inspiration. His students, residents, specialists, colleagues and associates will remember him for his immense patience and benevolence in fostering creative thinking and activities in social medicine, epidemiology and family medicine. The School of public health “Andrija Stampar” lost one of its greats, who partly made it famous and well-known in the former Yugoslav areas, but also in Europe and the World. I personally remember him as a tireless worker, but also associate whose experiences was welcomed in my academic career. He loved Sarajevo and established good cooperation with the Institute and the Department of Social medicine and the organization of health, and several years ago we implemented several joint projects, some of which remained recognizable in Europe. A particularly important project was the “YugoslavSwedish Days of Social Medicine”, on which we worked together with the Karolinska Institute for Social Medicine in Stockholm for ten years, and which experiences and results significantly improved social medicine in our region.

The study was conducted using the long version of the International Physical Activity Questionnaire (IPAQ) and the aim of this research is to determine the level of physical activity and differences among students, of the University of Tuzla, in relation to gender. The study was conducted on a sample of 813 students (321 male and 492 female) 1st cycle of studies at the University of Tuzla. The results of present study showed that average level of total physical activity for male students was 6013.493 MET-minutes/week, while female students showed average level of total physical activity was 4619.381 MET-minutes/week. We conclude that the total data indicates that in this group of students the physical activity level is sufficient and that there is a lower physical activity among females than males. Also there is a need to continuously take measures for promoting the sports at Universities with the aim of raising the health status of students to a higher level.

Introduction: Immunization is a lifelong preventive activity that helps prevent/reduce disease, prevent/ reduce mortality and prevent disability from specific infectious diseases. Material and Methods: Authors of this paper researched the WHO extended program of mandatory immunization of children from birth to the age of 18 years and analyzed how it has been implemented in the Federation of Bosnia and Herzegovina (FB&H), because the guidelines of the specialist physician societies on immunization of adults, elderly people and risk groups of the population are missing. Results: The paper presents the basic characteristics of the immunization program in the FB&H and the world, points to the most frequent problems that the doctor practitioner has in carrying out immunization, and also presents possible modalities of improving immunization. It is pointed out the need to develop the national guidelines and individual immunization booklets, introduction of electronic registration of immunization, and continuous education of health professionals of all profiles, population, educators, teachers and harmonious partnership relations of health workers, population, social entities and the media with the aim of achieving an appropriate lifelong vaccination.