This paper investigates possibilities for the diversification and decentralization of heat energy sources in the district heating system of Tuzla, with the aim of increasing energy security, reducing CO₂ emissions and improving overall system efficiency. The existing model, which relies almost exclusively on the Tuzla Thermal Power Plant (TE Tuzla), is characterized by high dependence on fossil fuels, limited operational flexibility and hydraulic challenges in peripheral parts of the network. The study analyses potentials for integrating alternative heat sources, biomass cogeneration, waste-to-energy (RDF) and solar thermal systems, and assesses the role of thermal energy storage in optimizing operation and mitigating seasonal variability. Comparative scenario analysis demonstrates feasible transition pathways towards a sustainable heating model that reduces emissions and increases local control over energy supplies while accounting for Tuzla's specific technical and institutional context.

Artificial Intelligence (AI) has become a key factor in the development of countries. Countries have recognized the potential of using AI to achieve sustainable development. This research explores the potential of the Southeast European (SEE) countries in the field of AI applications. The Government AI Readiness Index, with its nine indicators, is used to assess readiness for AI applications. A comparison of the SEE countries for the application of AI was conducted using Multi-Criteria Decision Making (MCDM) methods. The methods used were MEREC (Method based on the Removal Effects of Criteria) and CORASO (COmpromise Ranking from Alternative SOlutions). The results of the MEREC method show that the maturity and adaptability indicators have higher weight values compared to the other ones. The results of the CORASO method show that Greece and Bulgaria have the strongest indicators, with the sensitivity analysis confirming these findings.

Drinking water is a vital resource for public health and sustainable development, yet its quali­ty is increasingly threatened by pollution, climate change, and emerging contaminants. Directive (EU) 2020/2184 on the quality of water intended for human consumption introduces stricter requirements for monitoring, risk management, and public transparency. This paper analyzes the content and significance of the Directive, with a focus on the challenges of its implementation in Bosnia and Herzegovina.Special attention is given to harmful substances such as bisphenol A, PFAS compounds, and cyanotoxins, which pose serious risks to human health. The Directive introduces new water quality parameters, promotes access to water as a human right, and encourages the use of tap water to reduce plastic waste.In conclusion, aligning national legislation with this Directive is essential for improving water quality, protecting public health, and achieving sustainable development goals.Keywords: drinking water, EU Directive 2020/2184, pollutants.

Introduction/purpose: The noise generated by artillery firing can have an extremely harmful effect on the people using it, namely the crew. The subject of this paper is the measurement and analysis of noise levels on artillery weapons used in the Serbian Army. Methods: The analysis and comparison of the results were carried out during operation of weapons of different calibers. Also, the aspect of impact and risk on the crew exposed to the mentioned physical phenomena was considered. Results: The results of the examination of the acoustic parameters in relation to the available criteria show that the crew on certain vehicles is exposed to a higher level of noise than allowed. Conclusion: It is concluded that all measured noise levels exceed the prescribed limit value. Based on the obtained results, further work can be done on reducing negative physical phenomena, as well as providing adequate equipment for the protection of the crew.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: green algae Cosmarium formosulum and Tetraspora gelatinosa, fungi Coprinopsis melanthina, Heteroxylaria oxyacanthae, Lophodermium petiolicolum, Peziza ostracoderma, and Phylloporia ribis, lichen Sphaerophorus globosus, liverworts Scapania curta and Solenostoma gracillimum, mosses Buxbaumia viridis, Sphagnum cuspidatum var. viride, and Sphagnum medium, dicots Hippuris vulgaris and Viola orbelica and monocots Arundo donax, × Gymnigritella suaveolens, Ophrys insectifera, and Ornithogalum montanum.

Background: Hypoxic-ischemic encephalopathy (HIE) is a major cause of neonatal morbidity and long-term neurodevelopmental impairment, particularly in preterm infants. Early diagnosis remains challenging, and there is growing interest in biomarkers that reflect underlying mechanisms such as neuroinflammation and blood-brain barrier disruption. Objective: To evaluate the diagnostic and prognostic value of selected circulating biomarkers in preterm infants with HIE, with emphasis on a multimarker approach. Methods: This prospective cohort study included 120 preterm infants (gestational age 28-36 weeks), divided into HIE (n = 90) and control (n = 30) groups. Serum levels of NR2 antibodies, endothelin-1, glial fibrillary acidic protein (GFAP), and neurofilament light chain (NfL) were measured at 24-48 hours, day 5-7, and day 14. Statistical analysis included t-test, ANOVA, correlation analysis, logistic regression, and ROC curve analysis. Results: Biomarker levels were significantly higher in the HIE group (p < 0.001). GFAP and NfL showed the highest diagnostic performance (AUC 0.86 and 0.88). The combined model achieved the best accuracy (AUC = 0.89). Biomarker levels correlated with disease severity. Conclusion: A multimarker approach improves diagnostic accuracy and may support early risk stratification and individualized management in preterm infants with HIE.

This case report describes the early clinical and laboratory course of an orphaned wild Bosnian Mountain Horse foal, with the aim of highlighting the diagnostic value of age-appropriate interpretation of clinicopathological findings during early life. The report is of particular interest because published data on the clinical monitoring of orphaned foals of this breed remain limited. The case included repeated hematological and biochemical analyses, coprological examinations, and dermatological evaluations, initiated partly due to the occurrence of two distinct skin lesions. Laboratory findings obtained at approximately two and four months of age were interpreted with consideration of age-related physiological variations characteristic of foals. Progressive decreases in erythrocyte parameters were consistent with physiological anemia of foals, while leukocyte profiles, platelet counts, and biochemical values reflected normal developmental adaptation rather than pathological changes. Two clinically distinct skin conditions were identified during follow-up. The first was a localized periocular dermatophytosis caused by Microsporum canis, diagnosed by microbiological analysis of skin scraping collected from the lesion margins. The second was diffuse, irregular, poorly demarcated alopecic lesion of non-infectious origin, supported by negative microbiological and parasitological findings from skin scrapings and by spontaneous regression without specific therapy. Despite early-life challenges associated with orphan status and suboptimal nutrition, the foal maintained stable systemic health throughout the monitoring period. This case underscores the importance of age-appropriate interpretation of clinicopathological parameters and comprehensive clinical assessment in orphaned or free-ranging foals.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: brown alga Heri­baudiella fluviatilis, fungi Holmiella sabina, Lysurus cruciatus, and Psathyrella ammophila, lichen Umbilicaria subpolyphylla, liverwort Kurzia pauciflora, mosses Climacium dendroides, Dicranella howei, Fissidens rivularis, F. viridulus, and Sphagnum papillosum, dicots Hesperis matronalis subsp. candida, Hieracium gaudryi, Lythrum hyssopifolia, Lythrum tribracteatum, and Taraxacum janchenii and monocots Allium moschatum, Cyperus esculentus, Dactylorhiza × aschersoniana, Dactylorhiza incarnata, Ophrys insectifera, and Schoenoplectus litoralis.

Razvijanje talenata predstavlja jednu od ključnih aktivnosti u okviru talent menadžmenta i značajno doprinosi zadovoljstvu zaposlenika i ukupnoj organizacijskoj uspješnosti. Cilj ovog istraživanja bio je ispitati nivo razvijenosti aktivnosti razvoja talenata u uslužnim poduzećima u Bosni i Hercegovini, kao i analizirati njihov utjecaj na zadovoljstvo zaposlenih. Istraživanje je provedeno na uzorku od 101 poduzeća, korištenjem Likertove skale i upitnika za menadžere i talentirane zaposlenike. Pouzdanost skala potvrđena je visokim vrijednostima Cronbach-α koeficijenata (α = 0.78 za razvoj, α = 0.84 za zadovoljstvo). Dobiveni rezultati pokazuju da su razvojne aktivnosti u prosjeku visoko razvijene, posebno u malim i srednjim poduzećima. Regresijska analiza je potvrdila da razvojne aktivnosti značajno pozitivno utječu na zadovoljstvo zaposlenih (β = 0.355, p < 0.001), što ukazuje da ulaganje u razvoj talenata nije samo organizacijska obaveza, već i ključna strategija za povećanje zadovoljstva i lojalnosti zaposlenika. Ovi nalazi pružaju važne smjernice za unaprjeđenje HR praksi u organizacijama koje žele zadržati i motivirati svoje talente. Ključne riječi: Talenti, razvijanje talenata, zadovoljstvo zaposlenih