The aim of the research was to determine the psychometric properties of the Multidimensional Scale of Perceived Social Support in individuals with disabilities in Bosnia and Herzegovina. The research included a total sample of 232 participants, with an average chronological age of 44.21±19.31 years, of which 121 (52.2%) were male and 111 (47.8%) were female. The study was conducted among individuals with motor impairments, visual and hearing impairments, speech and language disorders, and combined disabilities. To achieve the research objective, the Multidimensional Scale of Perceived Social Support was applied, consisting of 12 assessment variables scaled from 1 to 7. The research data were processed using parametric and non-parametric statistical methods. A multivariate method of exploratory factor analysis was applied to identify factors in a given domain when the number and structure of factors are not previously known, along with confirmatory factor analysis using the maximum likelihood algorithm. Following factorization, the internal consistency coefficient (Cronbach's alpha) was calculated, and the reliability of the variables was assessed through inter-item statistics. Based on the obtained research results, it can be concluded that the Multidimensional Scale of Perceived Social Support has satisfactory reliability and internal consistency for use among individuals with disabilities in Bosnia and Herzegovina. The results of both exploratory and confirmatory factor analysis indicate a suitable three-dimensional model and confirm the original structure of the scale, which can be applied to individuals with disabilities in Bosnia and Herzegovina. Keywords: Social support, disability, validity, reliability, factor analysis.

Objectives. The main objective was to assess the relationship between sociodemographic and occupational factors and stress levels among healthcare workers in family medicine in Bosnia and Herzegovina, using the PSS-10-BH scale. Materials and Methods. A cross-sectional study was conducted using the PSS-10-BH questionnaire distributed via Google Forms to primary care nurses and physicians between July and August 2022. Results. The study included 272 participants, with a mean age of 44.7 (±10.55), predominantly women (86.8%) and physicians (58.8%). The mean PSS-10-BH total score for the sample was 21.26 (±6.77) ranging from 3 to 36. The linear regression model indicated male gender and older age showed an association with slightly lower stress levels. Marital status and the number of children showed a slight positive association with stress levels. Occupation (B=-3.068, 95% CI: -5.442 to -0.694, P=0.012) was associated with stress, with physicians tending to report lower stress levels compared to nurses. Years of work experience (B=0.060, 95% CI: -0.190 to 0.309, P=0.636), and patient load (B=0.082, 95% CI: 0.027 to 0.137, P=0.004) were associated with higher stress levels. The results suggest that work-related variables are significant predictors of stress levels as measured by the PSS-10-BH scale in this sample of healthcare workers. The included predictors explain 10% of the variability in the outcome, indicating additional unidentified contributing factors. Conclusion. Occupational factors, particularly profession, work experience, and daily patient load, significantly influence stress levels in healthcare workers. Further research is needed to explore other potential influences and refine interventions aimed at managing stress in this population.

Leisure time in contemporary society is increasingly becoming a crucial factor in shaping the personalities of children and youth. Alongside family, schools play a central role in organizing and shaping students' leisure time. The aim of this paper is to examine the role of schools in the pedagogical structuring of students’ leisure time and to explore differences in the perception of leisure time between students in urban and rural schools. The research was conducted on a sample of 140 seventh-grade students from elementary schools in the Tuzla Canton. The study analyzed students' ways of spending leisure time, the involvement and support of schools in organizing leisure time, and the perception of societal support for students' leisure activities. The results of the research indicate that students most frequently spend their leisure time in activities without significant pedagogical influence. Most students occasionally participate in school clubs, with significant differences observed between urban and rural schools in the type and number of activities available. Teachers and parents are the primary sources of support in organizing leisure time, while the broader community offers limited support. The findings suggest that schools play an important role in the organization of leisure time but that there are significant disparities in the activities available to students in different environments. Although activities such as sports and cultural clubs remain popular, students are increasingly gravitating towarddigital content, which may reduce the pedagogical value of leisure time. Schools should continue to develop and adapt leisure activities to meet students’ needs, with greater involvement from the broader community and support in fostering healthy and constructive patterns of leisure time usage. Keywords:school, children, education, leisure time.

This paper deals with the problem of the relationship between young people's life satisfaction and their material condition, locus of control, attitude towards studying, attitude towards work and life orientation. The concept of life satisfaction and other correlates mentioned in the paper are certainly current in psychology and have been increasingly researched lately. It is very important to investigate the life satisfaction of young people and other correlates that contribute to life satisfaction, and to observe them all together through the prism of positive psychology. In this paper, we investigated what kind of relationships exist between the life satisfaction of young people and their material condition, their locus of control, attitude towards studies and work, and life orientation. Appropriate measuring instruments were applied to a sample of N=260 respondents (M=1.63, SD=.482). A scale for assessing life satisfaction, a scale for testing locus of control, a scale for attitudes towards studying, a scale for attitudes towards work and a life orientation scale, as well as a questionnaire for collecting appropriate sociodemographic characteristics. The scales that were used in the research showed appropriate metric characteristics of 0.87 for life satisfaction and locus of control, 0.78 for attitude towards studying, while slightly lower values for attitude towards work were 0.48 and life orientation 0.49. .The results of the research showed that there is a statistically significant positive correlation between life satisfaction of young people and satisfactory material condition (r=0.316, p=0.00) and between life satisfaction and locus of control (r=0.208, p=0.001). However, there is no statistically significant correlation between young people's life satisfaction and attitudes towards studying (r=0.107, p=0.091). As for the life satisfaction of young people and attitude towards work, there is a negative correlation between these variables (r=-0.201, p=0.001) and there is a positive correlation between life satisfaction and life orientation (r=0.456, p=0.000).

Background and Objectives: This study primarily aims to evaluate the preoperative staging effectiveness of PET-CT in early-stage cervical cancer, particularly, its ability to detect primary tumors and micrometastases. Materials and Methods: In this retrospective study, cervical cancer patients who had undergone preoperative 18F FDG PET-CT scans and were treated at the Department of Gynecology, Institute of Oncology, Vojvodina, in Sremska Kamenica, during the period from 2016 to 2020 were analyzed. Results: The study included 62 patients (mean age, 49.3 ± 9.6 years). Squamous cell carcinoma was the predominant histological type (95.2%), with G2 differentiation (82.3%) and FIGO stage Ib1 (80.6%) being the most common. Assessed by 18F FDG PET-CT, the mean tumor size was 26.4 ± 10.8 mm, which is slightly lower than the 26.9 mm measured during clinical examination (p = 0.784), with a significant (r = 0.678, p < 0.001) correlation between these methods. 18F FDG PET-CT demonstrated an overall accuracy of 88.7% for identifying primary tumors, with a sensitivity of 86.8%, specificity of 100.0%, PPV of 100.0%, and NPV of 56.2%. An intraoperative examination showed identical overall accuracy but higher sensitivity (98.1%) and lower specificity (33.3%). For 18F FDG PET-CT, the level of agreement with the histopathological examination was good (Kappa 0.656), while for the intraoperative examination, it was moderate (Kappa 0.409). Regarding the lymph node assessment, 18F FDG PET-CT’s accuracy was 82.2%, with a sensitivity of 53.8% and a specificity of 89.8%. The intraoperative examination showed lower accuracy (66.1%) but higher sensitivity (76.9%). The 18F FDG PET-CT Kappa value indicated moderate agreement (0.449), while the intraoperative examination showed poor agreement (0.282). Conclusions: In conclusion, significant effectiveness is shown by 18F FDG PET-CT for preoperative staging of early-stage cervical cancer, offering superior accuracy in detecting primary tumors and micrometastases, particularly in predicting lymph node metastases, thereby enhancing diagnostic accuracy and informing treatment decisions.

This paper aims to determine whether there is a difference in anthropometric, morphological characteristics, and motor abilities, between boys and girls at the age of 13-15 years. The study included 95 subjects of which 49 were boys (51.6%) and 46 girls (48.4%), with mean age girls 14.14 and boys 14.40 years. The sample comprised students who belong to the urban area of the City of Tešanjka. The sample of variables in this study consisted of 15 tests of motor abilities and 10 morphological characteristics (body height, body mass, body mass index, etc.). This paper aims to determine whether there are differences in anthropometric characteristics and motor abilities between boys and girls aged 13-15 years. The results obtained in this study were compared with those of previous research, and the conclusions reached through a summary analysis were explained. Boys were taller and heavier at the age of 14. The results show that boys achieved statistically better results in most tests compared to girls of the same age. Keywords: anthropometric characteristics, motor abilities, gender differences, age of fourteen

Proton decay has been studied for decades now as one of the consequences of grand unified theories. Among those theories exists SU(5) theory, firstly postulated by H. Georgi and S. Glashow [1]. However, there were some problems with this theory such as mass degeneration and coupling unification [1-3]. This created a need for an extension of an original SU(5) model – a specific minimal SU(5) [4-5]. In this minimal SU(5) there is a viable parameter space with achievable gauge coupling unification. In this article, we present the process of gauge coupling unification for three mass scales of new physics states in this model, namely for 1 TeV, 10 TeV, and 100 TeV.

Abstract Serpentine soils are characterized as a unique environment with low nutrient availability and high heavy metal concentrations, often hostile to many plant species. Even though these unfavorable conditions hinder the growth of various plants, particular vegetation with different adaptive mechanisms thrives undisturbed. One of the main contributors to serpentine adaptation represents serpentine bacteria with plant growth-promoting properties that assemble delicate interactions with serpentine plants. Robinia pseudoacacia L. is an invasive but adaptive species with phytoremediation potential and demonstrates extraordinary success in this environment. To explore more in-depth the role of plant growth-promoting serpentine bacteria, we isolated them and tested their various plant growth-promoting traits both from the rhizosphere and roots of R. pseudoacacia. Based on the demonstrated plant growth-promoting traits such as siderophore production, phosphate solubilization, nitrogen fixation, indole-3-acetic acid production, and ACC deaminase production, we sequenced overall 25 isolates, 14 from the rhizosphere and 11 from the roots. Although more efficient in exhibiting plant growthpromoting traits, rhizospheric bacteria showed a low rate of diversity in comparison to endophytic bacteria. The majority of the isolates from the rhizosphere belong to Pseudomonas, while isolates from the roots exhibited higher diversity with genera Pseudomonas, Bacillus, Staphylococcus, Lysinibacillus and Brevibacterium/Peribacillus/Bacillus. The capacity of the described bacteria to produce siderophores, solubilize phosphate, and fix nitrogen highlights their central role in enhancing nutrient availability and facilitating R. pseudoacacia adaptation to serpentine soils. The findings highlight the potential significance of serpentine bacteria, particularly Pseudomonas, in contributing to the resilience and growth of R. pseudoacacia in serpentine environments.