During vibrations, the structure passes through different behavior areas (elastic or inelastic). Different areas of behavior correspond to different approaches to analysis and design. Modeling vibrations as a phenomenon includes its presentation in the form of a mathematical model, with certain parameters specific to the system, which define and control the vibration process itself, namely mass, stiffness and damping. While mass and stiffness can be more accurately described mathematically, damping modeling involves the state and medium in which the system resides. Due to differences in understanding of the state variables that control damping forces, there is still no single accepted model of damping. The wrong selection of damping model in the dynamic analysis of structures can result in the response of the structure being underestimated, which can be the cause of the collapse of the structure. The paper analyzed the response of the bridge structure to pedestrian excitation, applying different numerical damping models and the damping determined experimentally. At the end of the paper, a comparative analysis with conclusions is given.

Two main types of cardiac amyloidosis (CA) exist, as a result of either aberrant plasma cell production of misfolded monoclonal light chains, known as immunoglobulin light chain amyloidosis (AL), or production of disintegrated and misfolded transthyretin (TTR) proteins by the liver, also called transthyretin amyloidosis (ATTR). Non-invasive diagnostics (cardiac uptake on diphosphonate scintigraphy, Perugini score 2 or 3) have gained prominence in modern cardiology in correlation with the negative findings of free light chains in serum and the results of negative immunofixation in serum and urine. Additionally, criteria related to echocardiography or cardiac magnetic resonance are necessary for establishing a diagnosis. A total of 3.063 99mTc-MDP bone scintigrams were analyzed between August 2018 and March 2023, of which Perugini score 1 was validated in 13 patients, Perugini score 2 in 10 patients and Perugini score 3 in 1 patient. From our experience, we could observe that cardiac uptake can be verified in daily clinical practice and that is meaningful for monitoring patients with ATTR-cardiomyopathy (ATTR-CM). Although the sample size is not large, the importance of the study lies in the fact that it involves patients whose findings have been incidentally verified. If patients are selected according to clinical characteristics, the number of positive findings may potentially increase. Our study aimes to raise awareness among physicians of various specialties about the significance of the diagnostic algorithm for infiltrative cardiomyopathies. This is to ensure early diagnosis of this problem and initiation of treatment in the earliest stages when the therapeutic effect is most optimal. Such an approach would yield benefits for both patients and the entire healthcare system. A meticulous diagnostic and therapeutic approach is therefore fundamental for improving clinical outcomes in patients with ATTR-CM, including careful attention to specific TTR genetic variants and long-term follow-up.

Background/Aim: The aim of this study was to determine the accuracy of overall and anterior Bolton's ratio measurements obtained with an intraoral scanner compared to standard caliper measurements on plaster models. Material and Methods: This study included 33 subjects (18 female and 15 male), aged 12 to 18 years. All subjects were taken impression for the purpose of making study plaster models. In addition, all subjects underwent intraoral scanning for the purpose of creating digital models. Tooth width was measured with a caliper on plaster models, while digital models were analyzed using Cerec Ortho SW 2.0.2 software. The overall and anterior Bolton ratios were derived using both methods. Statistical data processing was performed using an independent t-test. Results: The results obtained using these two methods for measuring the anterior and overall Bolton ratio showed that there was no statistically significant difference in the measurements obtained on plaster models and the measurements obtained by intraoral scanning. For the overall Bolton ratio, T-test was 0.828 and is not statistically significant (p<0.05). The value of T-test for the anterior Bolton ratio was 0.001 and it was also not statistically significant (p<0.05). Conclusions: Determination the overall and anterior Bolton ratio using an intraoral scanner is an accurate and acceptable method for clinical work in orthodontics.

Introduction/purpose: The study of vehicle suspension is a challenge for researchers in the field of vehicles regarding the impact of the suspension system on vehicle performances such as ride comfort, road holding, and working space. This paper presents the simulation of the Land Rover Defender 110 vehicle in the roll plane (half vehicle) in Simulink/MATLAB. The obtained results were compared with the results obtained in the ADAMS/CAR software package of the Land Rover Defender 110 simulation model previously experimentally validated. The Defender 110 vehicle has a dependent suspension system in both axles and a passive suspension type with four degrees of freedom (4 DOF). Methods: The equations of the system can be solved mathematically with a scheme in Simulink/MATLAB while half-vehicle modeling has been done in ADAMS/CAR. Results: The comparison of the vehicle characteristics obtained by the two simulation methods was done for three different scenarios, and it was noticed that there is a good correlation between them. Conclusion: It was concluded that the Defender 110 vehicle simulation model in Simulink/MATLAB is validated. The validated model can be used to perform suspension system optimization in future work.

Paper presents a model for the optimization of primary milk production in the hillymountainous regions of the Republic of Serbia. The goal of creating the model is to demonstrate and analyze the conditions and outcomes of production at the farm, while to find the optimal production structure, considering the organizational, economic, technical, and technological circumstances in which the farm performs its agricultural activities. The model is based on the linear programming optimization method. A mathematical model, or objective function, was established, and constraints were identified. A logical model was created for optimization. The main goal of solving the linear programming problem is to find the maximum or minimum of the objective function. In presented model, the task is to maximize the objective function, what is represented by the farm's net income. By using the linear programming, it is possible to determine the optimal quantities of resources and products to maximize net income, while adhering to resource constraints and other relevant factors.

This study focuses on the theoretical analysis of the application of modeling and mathematical, particularly linear programming, in managerial processes within the agro-industrial complex. The authors have dedicated themselves specifically to defining planning processes, classifying models, and organizing production structures, including vertical and horizontal structures. Despite the fact that the benefits of linear programming have been proven, it is still not widely accepted and applied in our region. The reasons for this can be found in the relative complexity of the process, both in creating logical and mathematical models, and in interpreting results. Although there are specialized software and add-ons such as Solver in MS Excel, they are still not accessible enough to a wider range of users in the agro-industrial sector. It is evident that there is a need for the development of new specialized software solutions with user-friendly interfaces, which would make them more accessible, primarily to advisors, and then to agricultural producers.

In this study, pyrophyllite was used for the first time in the composition of protective refractory coatings together with supplementary waste resources. The proposed refractory coatings are applicable for metallic and non-metallic structures, with the option of using them to protect machinery components in the chemical industry, metallurgy, and mining. Given that pyrophyllite has a low hardness, the goal was to improve the coating's resistance to cavitation erosion by adding 20 wt.% of hard refractory materials, i.e., crushed and micronized waste bricks based on mullite and corundum, respectively. Previous studies have demonstrated that protective coatings using a pyrophyllite filler have refractory qualities but insufficient resistance to cavitation erosion. As a result, the composition of refractory coatings, the preparation techniques, and the coating manufacturing process were altered. This study presents a simple method for combining conventional coatings made of refractory fillers (primary resource: pyrophyllite) with waste materials (mullite brick and corundum brick) used as reinforcement in protective refractory coatings for metal and non-metal structural elements that are highly resistant to cavitation erosion.

When solving real problems, and to make a quality decision, it is necessary to consider a great number of often complex parameters. For these reasons, the development of decision-making process modeling has seen significant growth in recent years, and multi-criteria optimization models have stood out among them as useful for solving complex and conflicting phenomena. Multi-criteria optimization models make it easier for decision-makers to find the optimal solution in situations where there are many different criteria, which can often conflict with each other. The choice of the appropriate method of exploitation of mineral deposits follows the consideration of the problem and the approach to further development, which is primarily the determination of the criteria that influence the choice of the optimal alternative.

Here we will focus on two of the four indexed biomedical journals that were published in Sarajevo during wartime conditions in 1992-1995. The first is the Medical Archives, which was founded in 1947 and whose last editor until 1991 was the respected Academician Mirko Grujic, and whose last edited issue remained in storage (then the printing was done on Heidelberg machines and the text was typed using lead letters) and that unprinted issue – the number one volume in 1991 never even came out. Given that the contracts with the strongest index database MEDLINE included the Contract of the Assembly of doctors of Bosnia and Herzegovina (BiH), which at that time was the owner of the journal, and the pause in printing had already been going on for two years, Medline withdrew this journal as well. Numerous correspondences with the main responsible person Mr. Sheldon Kotzin, we received an unexpected consent from the Medline database to try to fill the gap with at least a few double-issues within 6 months, and Medline will meet us and reactivate the depositing of the Medical Archive in Medline. In addition to these facts, I was reminded of the incredible activities related to the preparation and printing of 47 books and monographs out of a total of 98 in B&H in the war period 1992-1995, and their list is in the attached tables. Those war publications were created in various ways. Very important collection of published monographs are printed during wartime written by very famous scientists from Golden Arabic Ages: Ibn Sina, Ibn Haitham, Ibn Rushd, Ibn Nafis, Al Biruni, Ar Razi, which has been forgotten, translated by famous professors Sakir Sikiric and Hamdija Karamehmedovic until 1962. In addition to these facts, I was reminded of the incredible activities related to the preparation and printing of 4 scientific journals out of 8 biomedicine which today indexed journals in Bosnia and Herzegovina. Very important item from wartime was recording documetary movie "Amputation or Reconstruction in Wartime Conditions" recorded by Izet Masic and Zoran Ridjanovic which made in 1994 and showen in Lisbon during MIE '94 Conefernce as one of war miracles. Finaly, during wartime in B&H Avicena organized and published Proceedings of ten scientific meetings held in sieged Sarajevo and all presented papers were published and deposited in PubMed Central database. Total amount of published books and monographs during past thirty years is more than 200, and, also published papers by Avicena during 30 years in four Avicena Publisher's journals have number more than 15,000 papers writen at least by 60,000 authors, from over 50 countries from all continents, and almost a half of them are stored in most influential indexed databases. It is incredible job of one very small publisher from small countriy.

Background: The Social Medicine and organization of health is science organized on the application of modern medicine principles in the health care of human groups and nations. The significant difference of social medicine from clinical disciplines is that the clinical medicine deals with problems of individuals and social medicine is devoted to community health and illness of the family, schools and work organizations from population groups to the overall people of one area or country. Public health refers to all organized measures (whether public or private) to prevent disease, promote health and prolong life among the population as a whole. Its activities aim to provide conditions in which people can be healthy and focus on entire populations, not on individual patients or diseases . Objective: The aims of this article are to show, based on the available literature: a) The development of Social medicine and Public health in the World and Bosnia and Herzegovina from the medieval period until the today. b) The most significant historical events that marked the development of Social medicine and Public health with emfesized most important scientists and discoverers with their achievements. Methods: The subject of this study was the development of Social medicine and Public health in the world and in the areas of Bosnia and Herzegovina from the uncient peertiod until today. In order to achieve the set goals, a) Retreival of professional and scientific literature; and b) Search of scientific databases and web pages on the Internet that offer adequate and relevant data and historical facts related to the subject of studies were carried out. Most of the facts are covered in previously published articles by the author of this paper and deposited in the PubMed and PubMed Central databases, as well as in books and monographs by the author of this text. Results and Discussion: Social medicine with the organization of the health care system is the scientific discipline, defined by the huge contents, clear goal and specific methodology. It has been presented flow of socio-medical development and implementation on worldwide during the past. Public health was defined by Charles-Edward A. Winslow, in 1920. as „the science and art of preventing disease, prolonging life, and promoting physical health and efficiency through organized community efforts for the sanitation of the environment, the control of community infections, the education of the individual in principles of personal hygiene, the organization of medical and nursing service for the early diagnosis and preventive treatment of disease, and the development of the social machinery which will ensure to every individual in the community a standard of living adequate for the maintenance of health“. The names of those who are deserved for socio-medical development and its insufficiency on the organization on health system and some specific parts of it. Social medicine, and Public health as sciences and profession had high level among other disciplines, but also as profession per se, specially at the international level. There is huge evidence of numerous projects, books, papers, recognized by indigenous and international audience. Conclusion: The most importants role in organizatiionn and realization of all kind of public health activities and measures at every healthcare protection levels has World Health Organization (WHO) with its brench offices at all continents and all countries in the world. The author described information flow how it was happened during the history of its development.

Performance measurement in the health sector is essential. Research results so far show that studies have mainly focused on the Balanced Scorecard (BSC) design process rather than the implementation of the BSC. There is no agreement on the perspectives that should be adopted in healthcare. Regarding the implementation of the BSC, leadership, culture and communication are especially important. Subject of research. A systematic review of research on the application of the BSC model in healthcare. Aim. Understanding the evolution of the BSC model in healthcare. The aim is to define a model for measuring the achievement of development goals through perspectives. Method. Inductive method as a systematic method by which the analysis of individual facts leads to general conclusions. The deductive and comparative method is a systematic application of the deductive way of reasoning in which individual conclusions were reached from general judgments. Using the case study method, the results of this research were defined, that is, the key business indicators, grouped into 4 perspectives, which enable the operationalization of the strategic goals of the development of the healthcare organization. Results. The possibility is demonstrated. The paper provides further research opportunities regarding the stages suitable for the implementation of BSC in healthcare.