In early June 2023, we studied the Lepidoptera fauna of the upper course of the Neretva River, the valley of the Zalomka River in Nevesinjsko Polje and the Morina plateau between the two. In total, we registered 237 species, 63 butterflies and 174 moths. We found 53 butterfly species in the area of the Upper Neretva River, 37 in Nevesinjsko polje and five on the Morina plateau, along with 156, 40 and 20 moth species, respectively. In this study, we increased the total number of registered Lepidoptera species for the area, from 251 found in the same region during Neretva Science Week 2022, to a total of 414 (93 butterflies and 321 moths). Eight species have the status of Near Threatened and one is categorised as Data Deficient according to IUCN Red List of Threatened Species. Two species are listed as Vulnerable in the Red List of the Federation of Bosnia and Herzegovina and three species are listed on the Annex II of the EU Habitats Directive. Our findings present a much-needed basic knowledge on Lepidoptera of the region, which is important for conservation activities.

<p>This paper aims to present a methodological framework for the development and validation of the<br />Effective Ergonomic Load Coefficient (KEEO) model, an approach that seeks to quantify total<br />workload by integrating physical, mental, organizational, and technical and technological factors.<br />Current methods, such as RULA, REBA, OCRA, SWAT, and JCQ, address only individual aspects of<br />work and thus limit insight into the entirety of ergonomic risk. KEEO is based on a multi-criteria<br />integration of methodologies for determining weights and factors that have been identified as<br />determinants of ergonomic workload. Validation includes assessment of the content validity of the<br />questionnaire, analytical boundary checking, sensitivity analysis, and Monte Carlo simulation. The<br />results obtained show stable linear behavior and proportionality between components, suggesting<br />that KEEO can serve as a basis for future integrated ergonomic workload indices. This<br />methodological work is the result of work on a doctoral dissertation on the topic "Multi-functional<br />analysis of effective workplace workload".</p>

Trithemis annulata (Palisot de Beauvois, 1807) is a widespread Afrotropical species that substantially expanded its range in Mediterranean Europe in the second part of 20th century and very recently in the West Balkan region. A field study was carried out from June to September 2024 in the southern parts of Bosnia and Herzegovina and the Neretva River delta in Croatia in order to investigate the species’ presence in this area. During the survey, T. annulata was found at 14 locations, seven in each country. The observations from Bosnia and Herzegovina represent the first record of this species for the country. It was found in a wide variety of habitats, both lentic and lotic, including lakes, reservoirs, rivers, larger ponds and canals. Considering that, at several of these locations, the species was not found during surveys in 2022 and 2023, it most likely spread to this area recently. Additionally, two observations of T. annulata from North Macedonia that were found in the online databases Observation and iNaturalist represent the first documented reports for this country. These findings constitute a substantial increase in species range and abundance in the region. The species’ distribution andspread in the Balkan Peninsula is also outlined and discussed.

The aim of this study was to examine the psychometric properties of the IGD-20 scale, developed by Pontes et al. (2014) for the assessment of Internet gaming disorder, which was translated in this study using the back-translation method and administered to a sample of gamers and eSports players in Bosnia and Herzegovina. The sample consisted of 278 participants (82% gamers and 18% eSports players), predominantly male, with an average age of 27 years. Item analysis demonstrated satisfactory discriminative power and high item-total correlations for all items. The overall reliability of the IGD- 20 scale was exceptionally high (α = 0.965). Exploratory factor analysis initially suggested a three-factor solution; however, this solution was neither interpretable nor consistent with the original structure of the instrument. A unidimensional solution, which has also been supported in recent research, proved to be the most interpretable and accounted for over 61% of the variance. In conclusion, the IGD-20 scale demons

<p>This paper investigates the relationship between organizational structure, process formalization, and innovative behavior in small and medium-sized enterprises in Bosnia and Herzegovina. Drawing on the theoretical foundations of institutional economics and organizational innovation, this research tests four hypotheses using logistic regression, multiple linear regression, and Pearson correlation analysis. The study employed a quantitative approach using data collected during 2023 from a sample of 304 SMEs operating in the manufacturing, trade, services, and ICT sectors in Bosnia and Herzegovina. The analysis applied logistic regression, multiple linear regression, and Pearson correlation to test four hypotheses. The results show that formalized career paths do not have a significant impact on innovativeness, while mentoring and training show a partial, but statistically significant effect. Also, a positive correlation was confirmed between the intensity of communication with customers and the level of organizational innovation, indicating the importance of external feedback serving to shape internal changes. Process formalization showed a partial impact on the overall level of innovation. The results obtained contribute to a better understanding of the factors shaping the innovation capacity of SMEs in transition economies and emphasize the need for a comprehensive approach that combines human capital development, flexible organizational structures, and active involvement of the external environment.</p>

In this paper we analyse and compare two modern methods of deformation analysis: the squared Msplit method and the absolute Msplit method. The comparison is made on cases of simulated and actually measured horizontal geodetic networks. The squared Msplit method is based on the assumptions of the least square method, while the absolute Msplit method is based on the assumptions of the least absolute deviation method. For each method, we developed a computer programme and used it to calculate point displacements in both a simulated and a measured 2D geodetic network. The purpose of this article is to compare the displacements. The results of the two methods differ by up to about one centimetre in the simulated network and by less than two centimetres in the actually measured geodetic network.

The aim of this study was to evaluate the strength of the left and right hamstring and the quadriceps muscle group in professional handball players. It also aimed to assess the statistical significance of the relationship between these two muscle groups. The study included eight professional handball players from the "Borac" team, Banja Luka. Standard anthropometric measurements were taken. The following variables were assessed: maximum quadriceps torque (MQT), maximum hamstring torque (MHT), and hamstring–quadriceps ratio (HQR), to determine the presence of muscle imbalances bilaterally and unilaterally. Isokinetic testing of knee strength was performed on both knees at the Institute for Sports, Faculty of Physical Education and Sports, University of Banja Luka, using the CON-TREX CYK device, which allows comprehensive assessment of muscle and joint function. Based on the findings, there was no significant muscle imbalance in handball players, i.e., no significant difference in quadriceps or hamstring strength between the left and right legs, either bilaterally or unilaterally (p > 0.05). The strength of the left and right quadriceps and hamstrings showed minimal variation, with no evidence of muscle imbalance. In professional and elite sports, information from isokinetic diagnostics is essential for designing training programs and preventing injuries. This study provides normative data for the handball player population.

Smoking is a serious public health problem, as smoking and passive exposure to tobacco smoke are important risk factors for global morbidity and mortality. It also negatively affects the structure and functionality of the sensory-motor-oral system, disrupting key functions such as breathing, phonation, chewing and swallowing. Therefore, the aim of this research is to investigate the influence of cigarette consumption on olfactory function and compensatory muscle movements during the oral phase of swallowing. 80 respondents participated in the research (40 smokers and 40 respondents who did not consume tobacco products). The research procedure included examination and analysis of the subject's olfactory ability in the form of recognition of presented smells. The compensatory movements of the lip muscles - musculus mentalis and musculus orbicularis oris - were evaluated. The research results showed that smokers have a weak ability of olfactory perception compared to non-smokers, which implies the occurrence of muscle compensation during swallowing.

<p>The demand for stainless steels has been steadily increasing across industries such as automotive,<br />aerospace, aviation, medical technology, and household appliances, primarily due to their excellent<br />corrosion resistance, low thermal conductivity, and favorable strength-to-weight ratio. Many of<br />these applications involve components with complex geometries and strict dimensional<br />tolerances, making machinability a crucial factor.<br />Technical surfaces are not ideally smooth geometric surfaces separating two media, but are, from<br />a microscopic point of view, rough surfaces characterized by a series of irregularities of different<br />sizes, shapes, and arrangements. The roughness represents the microgeometric irregularities of the<br />surface, i.e., unevenness at the small reference length (l) of a given direction of the surface.<br />According to the available literature, the effect of alloying elements on roughness during<br />conventional turning has not been sufficiently investigated. Therefore, the objective of this study<br />is to investigate and quantify the effect of alloying elements and nonmetallic inclusions on<br />roughness magnitudes in the longitudinal turning process of X8CrNiS18-9 stainless steel.</p>

<p style="text-align: justify; text-justify: inter-ideograph;"><span dir="auto" style="vertical-align: inherit;"><span dir="auto" style="vertical-align: inherit;">Proučavana je fauna ptica duž masiva planine Orjen i graničnog područja parka uz rijeku Trebi&scaron;njicu. Analiza je obuhvatila stani&scaron;ta i migracije u periodu od ljeta 2021. do jeseni 2023. godine, s ciljem dugoročnog praćenja, prognoziranja i za&scaron;tite vrsta. </span></span><br /><span dir="auto" style="vertical-align: inherit;"><span dir="auto" style="vertical-align: inherit;">Metode kori&scaron;tene za praćenje, označavanje, snimanje i obradu podataka uključivale su: metodu kilometarskog transekta, tačkasti popis, kretanje po slobodno odabranim rutama i metodu "reprodukcije". Analizirana su i prethodna istraživanja faune ptica u ovom parku kako bi se sintetizirali rezultati. </span></span><br /><span dir="auto" style="vertical-align: inherit;"><span dir="auto" style="vertical-align: inherit;">Glavni rezultati dobijeni nakon terenskog istraživanja su sljedeći: sastavljen je sistematski popis vrsta ptica, potkrijepljen foto albumom, a kreirane su i karte koje prikazuju najvažnija stani&scaron;ta za gniježđenje.</span></span></p> <p style="text-align: justify; text-justify: inter-ideograph;"><span dir="auto" style="vertical-align: inherit;"><span dir="auto" style="vertical-align: inherit;">Prijedlog je predstavljen upravi parka prirode i zainteresovanim stranama za ovo područje, s ciljem za&scaron;tite vrsta i osiguranja njihove održivosti unutar stani&scaron;ta.</span></span></p>

Mountain lakes are sensitive ecosystems that serve as natural indicators of ecological change and conservation needs. This study presents the first ecological assessment of Lake Šator (Bosansko Grahovo, Bosnia and Herzegovina), a glacial lake situated at 1,488 m a.s.l. Field research in July and November 2021 included measurements of physicochemical parameters, water sampling, and analysis of littoral and sublittoral macrozoobenthos. The lake showed oligotrophic conditions with high oxygen saturation (101–134%), low organic load, and stable conductivity (208 µS/cm). Nitrate concentrations increased in November, reflecting seasonal dynamics. The macrozoobenthic community comprised 10 taxa in July (26 individuals) and 11 taxa in November (19 individuals). Characteristic taxa included Sympetrum flaveolum, Asellus aquaticus, Erpobdella octoculata, Limnephilus rhombicus,  Limnephilus flavicornis, Tubificidae, and water mites (Hydracarina). Functional Feeding Groups analysis revealed dominance of predators (42–46%), followed by collectors, shredders, and scrapers, indicating a balanced trophic structure. Saprobic Index values (2.24 in July; 2.14 in November) correspond to β-mesosaprobic conditions, while Shannon–Weaver Index indicated stable but seasonally variable diversity. These findings confirm the good ecological status of Lake Šator with preserved littoral dynamics. Given its sensitivity and limited prior research, the lake should be considered a priority for long-term monitoring and conservation in the Dinaric karst.

As part of the research, 100 samples of different types of honey from Bosnia and Herzegovina were collected and analyzed. Melisopalynological preparations were prepared in accordance with the Rulebook on methods for the control of honey and other bee products of Bosnia and Herzegovina and in accordance with ICBB propositions. Plant species identification was performed based on micromorphological elements of pollen grains, and qualitative-quantitative analysis of honey samples was conducted. Melisopalynological analysis identified 47 distinct pollen types among a total of 30,000 pollen grains counted. In botanical terms, pollen from 24 plant families was recognized, among which the Fabaceae family had the greatest melissopalynological significance, whose pollen grains were found in as many as 86% of the analyzed profiles. Pollen grains of the Fabaceae family were identified as dominant in 22%, as accessory in 40%, as important in 21% and as minor in 3% of the palynological profiles. Based on micromorphological characters in melissopalynological spectra, species/genera from the Fabaceae family were identified: Robinia pseudoacacia L., Lotus corniculatus L., Trifolium pratense L., Trifolium repens L., Amorpha fruticosa L., Lathyrus sp., Medicago sativa L. and Onobrychis sp.

The study examined the sources of volume loss in spruce and fir roundwood resulting from the prescribed Huber’s formula, the prescribed method of diameter measurement, the prescribed method of length measurement, and the deduction of double bark thickness. The Riecke’s formula was assumed to provide the most accurate determination of log volume and was therefore used to calculate the gross volume of roundwood, serving as the reference value for quantifying the observed losses. For all analyzed sources of volume loss except when applying Huber’s formula, a dependence on diameter class was observed, with losses decreasing as diameter increased. The highest percentage of volume loss for both spruce and fir logs was found when deducting double bark thickness (ranging from 9.1% to 6.4% for spruce and from 10.7% to 7.7% for fir), followed by the prescribed method of diameter measurement (from 7.3% to 1.7%). Additional losses were associated with the prescribed volume calculation formula (from 5.3% to 1.5% for spruce and from 3.7% to 1.1% for fir) and the prescribed method of length measurement (from 3.1% to 2.1%).