Background: In the year 2024 Bosnia and Herzegovina (B&H) celebrates 130 years anniversary of establishing the Regional hospital in Sarajevo (Landesspittal) which played great role in healthcare protection of B&H population and also of education over 60 percent of medical staff in B&H. Great role have had also a lot of other medical institutions in B&H, most of them established and organized during Austro-Hungarian period. Objective: The aim of this article was to describe historical facts how mentioned institutions were founded and what was importance of functioning all of them during the past. Methods: The author searched important historical facts about establishing and works of hospital anf other institutions and their roles in healthcare protection of population in B&H in period from 1878 until 1941. using facts published in the books and articles deposited in indexed databases PubMed Central, Scopus, etc. Results and Discussion: During Ottoman Empire were established 5 Waqf''s hospitals (Sarajevo, Tuzla, Banja Luka, Mostar and Travnik by Governor Sherif Osman Topal Pasha (1861 until 1869)). After Berlin Congress and ocupation by Austro-Hungarians for 6 District - 6 Governments (Sarajevo, Banja Luka, Bihac, Travnik, Tuzla and Mostar, Bosnian Council has appointed district medical references, and in 66 districts (counties) were set up district, and county medical officers, mostly doctors. In each county council there was a sanitary commission of 3 members (the district doctor, a police officer and municipal councilor), whose task was to carry out sanitary control (inspection). The Medical Department of the Provincial Government published the relevant legal acts and regulations at the state level, The first official hospital established in B&H was Land hospital opened in 1894 and had 303 hospital beds in 4 departments: the first Internal Department with diseases of the throat and nose (not the ear) with 45-50 beds, the Second - Surgical Department with ophtalmology (for ear surgery) with 45-50 beds, the Third - Dermatology and Venerology ward with 70-80 beds and the fourth - Gynaecology-Obstetrics Department with 70-80 beds. It will be a good basis for training future teachers pioneers of medicine and generations of medical students attend the 80 years of study in Sarajevo. True, most students of this generation will be mobilized during the war, some will move on to medical faculties in other cities Tuzla, Banja Luka, Mostar, Foca, Zenica, Bihac. The first Faculty of Medicine in Bosnia and Herzegovina officialy established in November 16th 1946. Conclusion: All institutions described in this article played important role in the history of healthcare education and healthcare protection.

Background: Transplantation of cells, tissues, and organs enables many patients to regain impaired organ function, promoting healing or prolonging life and improving overall quality of life. Objective: The aim of this study was to assess the knowledge and attitudes of students in Federation of Bosnia and Herzegovina regarding organ donation and transplantation of organs. Methods: A cross-sectional study was carried out with 255 students from four different faculties in Federation of Bosnia and Herzegovina, with the majority enrolled in either the Faculty of Medicine or the Faculty of Health Sciences. The students collected data using a self-administrative questionnaire, providing sociodemographic characteristics, knowledge and attitudes about organ donation and transplantation. Statistical analysis was performed using Microsoft Excel version 3645 and R studio v2024.04.2, based on R 4.4.1. Results: Out of all students, 49 of them (19.3%) demonstrated poor knowledge, while 131 students (51.6%) exhibited average knowledge. Analyzing the data by Faculty type revealed significantly higher levels of knowledge among students in Medical and Health faculties compared to those in the Educational Science Faculty (χ2=10.196, p=0.006). Regarding attitudes, 56 students (22%) had a negative attitude, while 117 students (45.9%) had a highly positive attitude. Only 13 students (5.1%) owned a donor card. Conclusion: Students from Faculty of Medicine and Faculty of Health Sciences generally possess higher basic knowledge about organ donation, yet despite this knowledge, their attitudes toward organ donation often remain negative. It is essential to implement effective strategies aimed at raising awareness and fostering a positive attitude toward organ donation.

In this paper, a simulator for assessing the possibility of PV integration to the medium voltage distribution network is developed. The PV location and peak power are defined in advance. The simulator is based on sequential Monte Carlo simulation with various possible uncertainties such as photovoltaic production and load. In addition, the sequential simulation enables detection of period when the network constraints are violated. For this analysis, time series of essential variables such as PV system production and load are modeled. Based on the results of power flow calculation, probability distributions of the voltage at various nodes, the loads on individual lines as well as the probability of network constraints exceeding are determined. Depending on the network constraints, possibility of connecting the PV system to the network at the desired location is assessed. The power flow calculation is executed by using the OpenDSS simulator, while the input time series are prepared in Matlab. The method presented in this paper is tested on IEEE 33 distribution test network.

In this paper an experimental analysis was done aiming at studying the possibility of applying Peltier thermoelectric modules for building heating, more precisely, the optimization of a heat exchanger was performed. The concept of the system was designed to work without freon and harmful impact on the environment. The paper aims to develop a detailed mathematical optimization model of the existing heat exchanger for space heating by natural convection. Based on the optimal model, the new aluminum heat exchanger was created. The experiment was designed so that the Peltier elements were positioned on the heat exchangers and the input current and temperatures were measured. Firstly, experimental measurements were performed for the existing commercial heat exchanger, and, then, measurements were repeated with a new optimal heat exchanger under the same conditions. The coefficient of performance of a space heating system using a Peltier thermoelectric generator has a low value if the system operates with natural convection and heat exchangers without optimal fin spacing. Optimizing the distance between the fins on the heat exchanger provides an increase in heat flow by convection almost up to ten times and the coefficient of performance increases more than three times. This work has mathematically and experimentally confirmed that there is optimal fin spacing for finned heat exchangers with natural convection.

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The industrial waste deposit in Žitkovac was utilized for the disposal of various metallurgical wastes, including lead refinery byproducts. This site has been contaminated for many years; despite the company maintaining records of waste disposals, weathering processes altered the waste, leading to the mixing of byproducts from lead production. Consequently, the mineralogical composition of the waste changed, and the behavior of toxic components was affected by weathering, oxidation, and penetration into the soil. To investigate this, eight characteristic samples were collected from three depths: the surface, 300 mm, and 500 mm. Specific sampling locations were chosen based on visible differences as well as the company’s records. The results indicated that lead, arsenic, and ferric compounds had penetrated the deeper layers of the soil, while copper, cadmium, and antimony remained primarily concentrated at the surface. It was noted that the gauge minerals, the agents used in refining residues, and the composition of the soil significantly influenced the behavior and penetration of pollutants within the soil column.

Effective removal of various pollutants from the environment has become one of the most important challenges of modern society. Carbon cryogels doped with nitrogen were synthesized and characterized using FTIR. All investigated materials have similar composition and structural disorder. The application of carbon cryogels doped with nitrogen for adsorption from tap water with the addition of OP pesticides gave successful results in stationary and dynamic conditions. Stationary conditions showed successful removal of aliphatic dimethoate and malathion for all tested materials, but they were less effective for aromatic chlorpyrifos. Under dynamic conditions, all materials effectively removed malathion and chlorpyrifos while showing suboptimal performance for dimethoate adsorption. The demonstrated efficiency indicates the potential application of these materials in water treatment. The toxicity of these pesticide solutions decreases over time, indicating that no more toxic products are formed.

This article addresses a sustainable approach to urban regeneration in post-communist residential neighbour-hoods in Sarajevo. The area explored is located in the municipality of Novo Sarajevo (literally, New Sarajevo), featuring well-known but somewhat controversial apartment buildings built after the Second World War, from the 1950s to the 1970s. At the time, this area epitomized the social and economic progress and expansion of the city from east to west, and it expressed the ideals of socialist modernist urban planning and architecture. More than seventy years later, following social, economic, and cultural transition after the war in the 1990s and new urban developments, this area and the city face multiple challenges, from decay to social bias. One key challenge is to adapt the residential architecture from socialist mod-ernism to meet contemporary requirements of functionality and sustainability. This research proposes the “new urban protocol” as a collaborative model combining tools and procedures for sustainable urban regeneration while focusing on reevaluating, retrofitting, and reprograming the architectural legacy of socialist modernism.

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Cellular manufacturing represents one of the important segments in the application of the concept of Lean production, which is realized through the development and application of flexible manufacturing systems (FMS). FMS represent the basis for the production system to simultaneously achieve a high level of flexibility and productivity, that is, to be considered agile. However, due to their high production and technological capabilities, prices and investment costs, they require conditions that ensure their rational exploitation. Taking into account the increasingly complex conditions of production and placement of products, a systematic approach to the design and application of FMS is necessary, which will include the most important technological and economic characteristics. In this paper, on the example of the formed technological group of gears, the methodology of process planning and evaluation of the effects of cellular manufacturing is presented, as a basis for the rational development and techno-economic application of FMS.

Background: Thanks to advancements in neonatal medicine, perinatal morbidity has been significantly reduced, but the number of high-risk neonates continues to rise. Efforts to predict neurodevelopmental outcomes at an early age remain limited. The aim of this study was to analyze perinatal predictors of neurodevelopmental outcomes in high-risk neonates. Methods: A prospective, longitudinal two-year study was conducted at the Pediatric Clinic of the University Clinical Center in Tuzla. The study included 151 neonates, with 99 in the test group (with known perinatal risk factors) and 52 in the control group (without risk factors). Early neurodevelopment was assessed using the Alberta Infant Motor Scale (AIMS). Standard statistical methods were applied for data processing. The study was approved by the Institutional Ethics Committee. Results: Of the 151 neonates observed, 108 (71.5%) had normal neurodevelopment at 18 months, 29 (19.2%) had mild disorders, and 14 (9.3%) had developmental delays. In the group with suboptimal neurodevelopment, significantly more twin pregnancies, health problems during pregnancy, unnatural births, artificial fertilization, and pregnancy complications were recorded. In neonates, there were significantly more premature births, hypoxic-ischemic encephalopathy, and intracranial hemorrhages. Significant correlations were found between the mother's age and parity and delayed neurodevelopment. Additionally, correlations were found between birth weight, gestational age, Apgar score, length of hospitalization, and NICU stay with neurodevelopmental delay. Gestational age and the Apgar score at 1 minute showed significant negative predictive value for neurodevelopmental delay. Conclusion: Prematurity and perinatal asphyxia remain the greatest risks for adverse neurodevelopmental outcomes in neonates. These factors should be the focus of continued medical research and clinical practice. Neonates at the highest risk of developmental delay and their families should be prioritized for early identification, long-term follow-up, and timely interventions.