The main goal of this research is to evaluate the returns and risks of the following types of assets: Bitcoin, EUR Stoxx 50, gold, bonds: government bonds ICE Bof A 1-10 Year excluding Italy and Greece and the corporate bond index ICEB of A 1-10 Year AA. The paper tested a total of ten portfolios according to different scenarios for digital and financial assets. Also, in the paper, greater measures of risk and return were calculated with the aim of forming an optimal portfolio with minimal risk. The results of this research revealed that the correlation between Bitcoin and other forms of financial assets is generally low and negative, which can be a good instrument for portfolio diversification, and positively affect portfolio performance. Also, the results of this study showed that in terms of volatility and return measure of a total of ten portfolios, the second portfolio (whose structure consists of Bitcoin, Euro Stoxx 50, gold, government bonds ICE Bof A 1-10 Year - excluding Italy and Greece and the corporate index bond ICEBof A 1-10 Year AA) is the most optimal portfolio. The findings of this research can serve in risk and loss assessments of portfolio managers, investors, and regulators.

Capacity discharge percussion welding is nonconventional welding process where heat source is an electric arc obtained by discharging of capacitor bank. The arching time is very short, around 10 ms, and depends on a few parameters such as: capacity of capacitor bank, voltage, movement speed of welded pieces during welding. During arching a certain amount of material is melted and after that squeezed out by applied force used in welding process. Quantity of squeezed material depends upon heat input, intensity of the force pressing the wires during welding and many other parameters. Mechanical properties of welded joints depend on welding parameters. In this paper is described the influence of capacity discharge percussion welding parameters on mechanical properties of welded joints.

Background: Cardiovascular diseases (CVD) are the cause of 17 million deaths a year worldwide, of which 25% are sudden cardiac deaths (SCD). In Europe cardiovascular diseases (CVD) remains a leading cause of death in Europe accounting for 3.9 million deaths each year. Even with well-known risk factors and the current standards of health care, improvement of health and quality of life of CVD patients are still remains one of the biggest public health challenges we must overcome. Objective: The aim of this study was to analize of current strategic documents and relevant facts of WHO and other appropriate institutions regarding CVDs prevention and control for potentialy use in Bosnia and Herzegovina (B&H). Methods: Authors made a narrative review to provide a brief overview of the recent and relevant documents of good practice in prevention, diagnostic and therapeutic approaches of cardiovascular diseases that should be consider as milestones for the health authorities in the Federation of B&H. Results and Discussion: Bosnia and Herzegovina is among the countries with a high risk of CVD together with Albania, Croatia, Czech Republic, Estonia, Hungary, Kazakhstan, Poland, Slovakia, and Turkey. The main public health challenge in Bosnia and Herzegovina is reducing noncommunicable diseases (NCDs): heart disease, stroke, cancer, diabetes and chronic respiratory disease. NCDs are estimated to account for 80% of the country’s annual deaths, and addressing them is the foremost public health priority in the country. Cardiovascular diseases still represent a worldwide public health problem, with some new dimensions caused by challenges caused through pandemic of COVID-19. The well-known cardiovascular risk factors require new and more efficient public health approaches to the prevention and control. Conclusion: Due to the recently developed cardiovascular guidelines that were made by the European Society of Cardiology and World Heart Federation, key priority for health authorities should be is to update the existing CVD guidelines in the Federation of BiH in accordance with the international good practice to support healthcare professionals in their efforts to reduce the burden of cardiovascular disease in both individual patients, as well as at a population level..

Given that, in the realization of the mission of a non-profit organization, employees play the most important role, in this research we questioned the employees' job satisfaction and their dedication to the organization. The problem question was aimed at examining the influence of job satisfaction on organizational commitment. Data were collected through a questionnaire from respondents in the state of Bosnia and Herzegovina. The sample consisted of employees of the Islamic Community in Bosnia and Herzegovina. The statistical software package for data analysis -SPSS -was used to analyze the collected attitudes of 602 employees. The main research hypothesis was: H1. Job satisfaction has a direct impact on the organizational commitment of employees of the Islamic Community in Bosnia and Herzegovina. The obtained results confirmed the main hypothesis. The research also confirmed that within the framework of the functioning of the aforementioned non-profit organization, it would be important to research other topics in the field of human resource management.

Objective. Aging is characterized by the loss of abilities in the psychological and physical sense. Detailed assessment of cognitive status may enable early identification of high-risk patients who are candidates for dementia. The aim of this research was to examine the cognitive status of elderly people over 65 years of age living in the community and potential risk factors that contribute to the onset of dementia. Methods. The research was designed according to the principle of a cross-sectional study. The research used a general questionnaire, subjective and objective assessment of respondents, Mini Kog assessment. The ch2 square test was used for statistical tests. The usual value of p<0.05 was taken as the level of statistical significance. Results. Females (80.2%) had better cognitive status than males (84.6%) (ch2 =0.189; p=0.664). Respondents with the lowest level of education (primary school) had a worse cognitive status (23.5%) compared to 13.3% of respondents with an intermediate level of education (ch2 =9.139; p=0.010). 8.8% of respondents who socialize with friends had a good cognitive score compared to 0% of respondents with a good cognitive score who do not socialize with friends (ch2 =18.243; p=0.000), also, the cognitive status was worse in those respondents who used different aids (75%) versus 17% of those who do not use different aids for their functional mobility (ch2 =8.832; p=0.003). Conclusion. Dementia is present in a high percentage among elderly people. The level of education and the use of aids are potential risk factors for the onset of dementia.

Aging implies a process during which changes occur in the function of all organic systems in the human body. For a detailed assessment of the health status of an elderly person, a comprehensive geriatric assessment (CGA) is recommended. CGA is defined as a multidisciplinary diagnostic and therapeutic approach that enables the identification of medical, psychosocial and functional limitations of an elderly person, all with the aim of developing a coordinated plan to improve the health of the elderly person. The aim of this review was to point out the significance, comprehensiveness, applicability and prognostic significance of geriatric assessment based on data from recent literature and by searching available electronic databases. Studies were collected from the electronic databases MEDLINE (via Ovid), Pubmed, COBSON database and Google Scholar database, as well as by manual search of relevant studies cited in the references of key articles. The search for papers as a whole is limited to the English language. All studies that used a comprehensive geriatric assessment in their methodology, in elderly people over 65 years of age, were included. CGA is very important for the elderly, for their families, health systems of countries, health professionals as well as the social community. Interventions resulting from a CGA are one way to improve the performance of activities of daily living in elderly patients. CGA has numerous advantages in practice, it is comprehensive, applicable, economically relatively acceptable and as such can be routinely implemented at different levels of health care. CGA has a high prognostic significance for the early detection of multimodal problems in the geriatric population.

Objective. Long-term care represents a series of health and social care services that are provided at home or in an institutional environment to people with reduced functional capacity (reduced physical and/or cognitive abilities) who need support in performing daily activities, and who depend on the help of others for a long time period. The goal of the research was to examine the quality of life of users with long-term health care, with a special focus on comparing the quality of life between people placed institutionally and outside of the institution. Methods. The research was designed according to the principle of a cross-sectional study. In the research, a general questionnaire and a scale for assessing the quality of life Short Form 36 Health Survey (SF-36) were used. Among the statistical tests, the ch2 square test was used. The usual value of p<0.05 was taken as the level of statistical significance. Results. Subjects who were institutionalized had statistically significantly lower values of domains and summary scores of quality of life compared to subjects whose health care took place outside of institutions, whereby the difference was observed in physical functioning (p<0.001), social functioning (p=0.003) and mental health summary score (p=0.015). Conclusion. Users of long-term health care placed in an institution had significantly worse physical functioning, a higher level of limitations due to physical problems, worse general health, a lower level of social functioning, as well as mental health.

Background: A laboratory professional concerned with the quality of work in medical-biochemical laboratories ensures the accuracy and precision of laboratory analyses through the implementation of international and European guidelines for working with hazardous substances, through the availability and implementation of Standard Operating Procedures (SOPs). Laboratory hazards that affect the concentration and safety of workers arise from laboratory deficiencies such as: lack of preventive measures, knowledge and skills implemented through SOPs and good laboratory practice. Biophysical hazards in medical laboratories are manifested by needles and sharp objects, infectious materials, noise, vibration, radiation, poor air quality, temperature inversions. Objective: The aim of the research was to raise awareness of the quality of work in medical-biochemical laboratories in order to ensure the safety of workers. Methods: A cross-sectional questionnaire-based study was conducted among 100 laboratory professionals from Bosnia and Herzegovina (BiH) and Croatia. The research was conducted over a period of three months. Results: A higher percentage of exposure to infectious agents and needles and sharp objects was found among respondents from BiH compared to CRO (p=0.018 and p=0.001, respectively). We found that respondents employed in accredited laboratories are aware of exposure to hazards in a high percentage related to infectious agents, toxins (p=0.0012 and p=0.0046, respectively). A significant statistical difference was found between respondents with BiH and respondents with CRO in terms of knowledge of accreditation standards of medical-biochemical laboratories (p=0.0155). Respondents who have standard operating procedures available are aware of the hazards of infectious agents (p=0.0001), toxins (p=0.0466), needles and sharp objects (p=0.0052), noise (p=0.0030), vibration (p=0.0007) and extreme temperatures (p=0.0014). Conclusion: Efficient implementation and continuous compliance with the ISO 15189: 2018 standard requires constant commitment and active participation of laboratory staff. Laboratories must have standard operating procedures in place and actively monitor their use.

Introduction: COVID-19 is an infectious disease caused by the severe acute respiratory syndrom coronavirus 2 and causes a series of respiratory symptoms. Considering the appearance and development of symptoms, the course of COVID-19 can go from mild to severe. Depending on the course of COVID-19, the laboratory parameters change a lot, trying to defend the organism against the foreign pathogen and all the changes it causes. Therefore, the aim of this study is to observe the differences between biochemical, hematological and coagulation parameters depending on the disease stage of COVID-19 patients. Material and methods: We conducted cross-sectional study which included 160 COVID-19 patients from Sarajevo, Bosnia and Herzegovina. Biochemical, hematological and coagulation analyzes were performed. Results: COVID-19 patients with a severe clinical course have higher average values of fibrinogen (6.53±4.47,p<0.001), D-dimer (6.89±7.81, p<0.001), APTT (32.05±5.96, p=0.002), eosinophil (0.66±0.09, p=0.002) and CRP (93.42±75.86, p= 0.023), and lower values of lymphocytes (1.04±0.98, p<0.001), monocytes (0.45±0.3, p<0.001), compared to COVID-19 patients with a mild clinical course. COVID-19 patients with a severe clinical course had higher average values of neutrophils (10.12±5.80, p=0.002) and lower values of reactive lymphocytes (0.02±0.03, p<0.001) compared to COVID-19 patients with a mild clinical course. Conclusion: Biochemical, hematological and coagulation parameters can be a sensitive and specific biomarker for distinction of mild and severe COVID-19.

Background: The treatment strategy for non-muscle invasive bladder cancer (NMIBC) has not changed significantly over the past 30 years. Chemotherapeutic agents (mitomycin-C, epirubicin, etc.) and BCG (Bacillus Calmette-Guerin) immunotherapy are used as adjuvant intravesical therapy. Objective: To compare the difference between adjuvant chemotherapy and adjuvant immunotherapy in their efficacy of reducing the number of tumor recurrences. Methods: In this prospective clinical study, which included 99 patients with NMIBC from March 2018.–March 2023., we publish the results for all risk groups of patients treated with intravesical chemotherapy Epirubicin or with BCG immunotherapy, after TURBT (Trans urethral resection of bladder tumor) within 1 year. Patients were stratified into 2 groups. The first group was treated with Epirubicin (1 dose within 24 hours of surgery, then 6 weekly instillations and 3 maintenance doses), and the second group was treated with BCG (2-3 weeks after TURBT 6 weekly instillations, and 3 maintenance doses). The monitoring period was 24 months. Results: In patients treated with intravesical chemotherapy, recurrence occurred in 9 patients (17.64%), and in patients treated with BCG, recurrence occurred in 7 patients (14.58%). A similar incidence of disease recurrence was observed in both groups (p=0.787). Conclusion: The results of our study show a similar therapeutic response by risk groups of patients treated with chemotherapy and immunotherapy. Since BCG production will cease in the future, the task of urologists is to introduce intravesical chemotherapy into wider use and to modernize it as a safe and effective method of adjuvant treatment for non-muscle-invasive bladder cancer.

The paper provides general information and guidelines for the development of Mobility the Hub’s Action Plan of the City of Sarajevo. The action plan will cover a short-medium term time frame and vision, establishing a series of actions and measures to look for a visible and different concept of mobility through five basic components, such as: infrastructure, electromobility, auxiliary services, renewable energy sources and digital solutions. The main purpose of the work is to reduce the negative effects of traffic on citizens and the environment, encourage the transformation of urban mobility and direct the way of thinking towards sustainable development. Above all, defining the criteria for locating mobility hubs in urban areas. The conclusion is that mobility nodes are built in places of high concentration of people, which are places of exchange of passengers and places to which a large number of people gravitate. The Mobility Hub’s concept represents an attractive location/facility that offers users options for environmentally clean and practical modes of travel. It unites infrastructure and services in one place, creating a reliable model for a new way of moving around the city that saves money, is healthier, and increases involvement in green city transportation.

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