Arsenic concentration in seafood could potentially reach very high levels and represent a significant health risk for humans. In this study, the concentration of arsenic in various seafood: crabs (shrimp, prawns), molluscs (mussels), and cephalopods (squid) available both fresh on the market and frozen in supermarkets in Sarajevo, Bosnia and Herzegovina were determined by the electrothermal atomic absorption spectrometry (ETAAS). The results obtained using different matrix modifiers: Mg(NO3)2, Ni(NO3)2, Pd(NO3)2, and mixture Pd(NO3)2 + Mg(NO3)2 were compared. The best recovery rate of 98.4 % arsenic for the reference material ERM-CE278k, was achieved after the addition of the mixture Pd(NO3)2 + Mg(NO3)2 . The mean arsenic concentrations were 1.551 ? 0.836 mg kg-1 1.298 ? 0.410 mg kg-1, and 2.794 ? 0.958 mg kg-1 for crustaceans, molluscs and cephalopods, respectively, by using mixture Pd(NO3)2 + Mg(NO3)2 as matrix modifier. Arsenic concentrations in the same sample measured using different matrix modifiers varied widely, even above 70 %. With the current consumption rate of seafood products, both cancerogenic and non-cancerogenic risks associated with exposure to arsenic through seafood are very low for the residents of Bosnia and Herzegovina.

Background: In recent years, research efforts have focused on understanding virtual environments and the importance of collaboration in such environments. The spread of remote working, exacerbated by the global pandemic and changing workforce dynamics, has meant that organizations are increasingly reliant on dispersed teams. Building trust in virtual teams is paramount to fostering effective collaboration, and achieving common goals. Trust reduces uncertainty, promotes collaboration and facilitates open communication between team members. Building trust in virtual contexts is challenging due to limited face-to-face interactions. In addition, knowledge sharing plays a crucial role in improving team effectiveness by enabling information sharing and problem solving. The lack of physical proximity in virtual environments is a barrier to spontaneous knowledge sharing and highlights the critical need for a culture that encourages knowledge sharing. Methodology: This study highlights the importance of cultivating a supportive virtual environment, ensuring psychological safety and utilizing technical platforms to facilitate information sharing. Quantitative data and survey methods are used to explore the integral impact of trust, knowledge sharing, collaboration, and team effectiveness. Findings and Conclusions: The results of this study contribute to the existing literature on virtual teamwork by highlighting techniques and practices that improve team performance. The finding that trust and information sharing play a central role in virtual teams can help organizations develop effective virtual work policies, design appropriate training programs, and select suitable collaboration platforms. Limitations and Future Research: While the study provides valuable insights, the generalizability of the findings to other contexts is limited by the restriction to a single sample. Replicating the study in different organizational contexts would improve the robustness of the results. Furthermore, the cross-sectional nature of the study limits the possibility of proving causality. Future research efforts could use longitudinal studies to examine the complex relationships between trust, teamwork, collaboration, and knowledge sharing over time.

The article aims to mathematically model processes that occur in non-metallic heterogeneous materials when active thermography methods were used for deep study control. Currently, the trend in industrial development is using non-metallic heterogeneous mediums as a system of various components as structural materials. Such materials are characterized by improved physical and mechanical properties, which can be adjusted by selecting compositions and the ratio of component phases and macrostructure. At the same time, they are characterized by disadvantages such as variability of volume and time properties and the presence of various defects. Effective control methods are of particular importance to ensure the quality and reliability of products made from materials of this class. In the article, the authors analyzed the capabilities of existing non-destructive testing methods for flaw detection of products made of non-metallic heterogeneous materials. When developing a new and improving an existing measurement method, the problem of establishing a set of radiation parameters was used. This allowed for describing the state of the material with the necessary accuracy and the functional connections of these parameters with the latter’s characteristics.

Eduard von Keyserlings erster Roman Fräulein Rosa Herz (1887) war kein Bestseller. Da sich Keyserling später selbst von seinem Frühwerk distanzierte, überrascht auch die vernachlässigende Einstellung der Forschung gegenüber diesem Werk nicht. Für das Verständis von Keyserlings Poetik erweist sich der Roman jedoch als wichtige Grundlage. Der Text behandelt viele zeitspezifische Themen, darunter auch die Adoleszenz, wobei Keyserlings Schreiben generell der weiblichen Adoleszenz mehr Aufmerksamkeit schenkt. Die einzelnen Problempunkte, die Keyserling dabei aufgreift, werden auch in diesem Beitrag dargestellt. Obwohl Fräulein Rosa Herz in den 80er Jahren des 19. Jahrhunderts erscheint und traditionell nicht als Adoleszenzroman bezeichnet wurde, kann der Roman als interessanter und wertvoller Beitrag zur Adoleszenzliteratur der Moderne betrachtet werden.

The paper aims to explore the impact of state audits of grants in the public sector on reducing non-compliance with legal regulations. The research was conducted over a ten-year period among federal and cantonal ministries in the Federation of Bosnia and Herzegovina (FBiH) responsible for planning and distributing grant funds as part of their regular duties. The research results show that the total number of recommendations given during the observed 10-year period was 1,666, including: 245 recommendations related to grant planning, 684 recommendations related to the distribution of grant funds, 554 recommendations concerning the oversight of the designated expenditure of allocated funds, 74 recommendations concerning grant implementation reporting, and 109 recommendations regarding the accuracy of accounting records. During the observed ten-year period, the number of recommendations decreased by 75%. The research results also indicate that the adoption of stricter guidelines for grant management has a strong impact on reducing the number of identified irregularities. The paper also presents an analysis of the most common causes of irregularities. The results of the conducted research will contribute to filling the literature gap on the importance of grant audits, the most common causes of identified irregularities, and the significance of stricter legal regulations and clearer rules related to grant management.

This paper investigates the impact of different accounting bases and financial reporting frameworks on the Corruption Perceptions Index (CPI) in the public sector. Specifically, it examines how various accounting approaches (cash, modified cash, accrual, and modified accrual) and reporting frameworks (national accounting standards, International Public Sector Accounting Standards-IPSAS with or without modifications, and other frameworks) influence the perception of corruption in public institutions. The study uses a sample of 147 countries, with the CPI as the dependent variable and accounting basis and financial reporting framework as independent variables. The results of the ANOVA analysis reveal a statistically significant difference in corruption perception indices among countries employing different accounting bases. The results of this study indicate that countries applying simpler accounting frameworks, such as national standards and IPSAS modified for the local context, show a lower perception of corruption, as evidenced by a higher CPI value. In contrast, more complex frameworks, including IPSAS or national standards referencing IPSAS, combined with cash and partial accrual bases, do not significantly reduce corruption perception. Additionally, countries using national standards based on IFRS exhibit the lowest levels of perceived corruption in the public sector.

Soybean yield potential is strongly impacted by environmental conditions. Soybean yield variability could be explained by climatic variables. Choice of tolerant varieties adapted to different limited environmental conditions could be used as adaptive strategies to sustain the development of soybean areas. Three soybean varieties with high seed and oil content (Balkan, Novosađanka and Vojvođanka) were analyzed in three localities of Vojvodina Province in Serbia: Novi Sad (45°20′00″ S; 19°51′00″), Pančevo (44°52′15″ S; 20°38′51″) and Laćarak (44°59′45″ S; 19°34′03″). The highest yield of the three examined soybean varieties was shown by Vojvođanka (3365.0 kg ha-1), whereas the statistically highest yield was in 2010 (4301.1 kg ha-1) in the investigated period (2006-2011). All three varieties gave the lowest seed yield at the Pančevo locality, due to the deficit of precipitation and lower content of humus in the soil. The oil content in the seeds was also influenced by all three examined factors. The soybean varieties Vojvođanka and Balkan had statistically higher oil content than Novosađanka. The agroecological and soil conditions of Novi Sad were the most suitable for the synthesis of oil in the seeds of all genotypes. Oil content was statistically highest in 2010 (22.31%) compared to all tested years. The analysis has shown that Vojvođanka was the most promising of all soybean’s varieties.

In this study, ZnO as a semiconductor and RuO2 as a metal-like conductor were combined in a composite and tested as a photoanode for water splitting, i.e. green hydrogen and oxygen production. ZnO/RuO2 composite in the mass ratio of 2:1 was prepared using microwave processing of a precipitate. To investigate the influence of oxygen vacancies as defects in the crystal structure on (photo)electrocatalytic efficiency for hydrogen and oxygen production, the composite was annealed at 300 and 600?C. The phase composition, morphology, and optical properties of as-prepared and annealed composites were analyzed in detail. The (photo)electrocatalytic activity of composites for HER and OER was examined in NaOH and H2SO4 using linear sweep voltammetry. The (photo)electrocatalytic properties of the ZnO/RuO2 composites were correlated with their physicochemical characteristics with emphasize on oxygen vacancies.

It is known that throughout history the people of Herzegovina have been good and skilled fighters and competitors, especially in wrestling, boxing, throwing maces, spears and knives, fencing, etc. Those fighting skills and various competitions were traditional activities of Herzegovinians and were nurtured, preserved and passed down from generation to generation. In the Middle Ages, in the area of today's Herzegovina, physical activities were nurtured and practiced, as well as in neighboring areas and countries. During the Turkish occupation (1463-1878) there was a halt in their development, while during the Austro-Hungarian occupation (1878-1918) sports and other physical activities and competitions began to be practiced more intensively. Numerous sports and other physical activities appeared and began to develop, such as: athletics, cycling, equestrian sports, roller-skating, bowling, hunting, fencing, football, climbing, swimming, wrestling, diving, sokolism, tennis, etc. In the Kingdom of SCS/Yugoslavia (1918-1941), this development became more intensive in terms of content and institutions. In addition to the already mentioned, also began the development of other sports, such as: basketball, folk sports, volleyball, skiing, archery, etc. After the end of the Second World War, sport gained full momentum in Herzegovina, especially in the form of institutional organization. The subject of this research is sport and other physical activities in the territory of Herzegovina, with the aim of making an overview of their origin and development up to the most recent times. During writing historical method was used.

Vehicle-to-everything (V2X) communications is an important part of future driver assistance and traffic control systems that will reduce accidents and congestion. The millimeter-wave (mmWave) band shows great promise to enable the high-data-rate links that are required or at least beneficial for such systems. To design such systems, we first need a detailed understanding of the vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2X) propagation channels. This paper provides a systematic account of a series of measurement campaigns for such channels, conducted by the four research institutions of the authors over the past year. After a description of the similarities and differences of the channel sounders used in the campaigns, a description of the measurements in two European and one American city is given, and the scenarios of convoy, opposite-lane passing, and overtaking, are described. This is then followed by key results, presenting both sample results of power delay profiles and delay Doppler (or angular) spectra, as well as the statistical description such as delay spread and size of stationarity region. We also discuss the availability of spatial diversity in V2I connections and the correlation of the channels between different frequency bands.