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Zhiguang Zhang, Chalchisa Abdeta, M. Chelly, Jesús del Pozo Cruz, Leyna Germana, Fazlollah F Ghofranipour, A. Ha, A. El Hamdouchi et al.

Jingchuan Wang, N. Schmerr, E. R. Bell, Naoma McCall, V. Lekić, Mong‐Han Huang, J. Richardson, K. E. Young et al.

Maars are volcanoes with a central crater surrounded by an ejecta ring formed through surface explosive processes from underlying magma interacting with fluids. The study of terrestrial maar volcanoes, as analogs to explosive volcanic vents on the Moon and other planets, can improve our understanding of planetary volcanism and evolution. In this study, we conducted a series of geophysical experiments at Kilbourne Hole Maar, New Mexico, a well‐preserved crater used for both science and crewed exploration lunar analog studies. The surveys included multiple active source seismic lines that sampled the geological units of both the crater rim and floor. We demonstrate the effectiveness of shallow seismic reflection methods integrated with P wave refraction and surface wave analysis to determine the elastic properties and create detailed near‐surface structural models in a terrestrial volcanic setting. The reflection profiles capture the top‐down strata of the crater rim. The velocity changes derived from independent inversions of refraction travel times and surface wave dispersions indicate varying (6–15 m) ash thickness around the rim and reveal the presence of high‐velocity anomalies in possible connection with crater collapse beneath the crater floor. Additionally, we estimate a base surge volume of approximately 6.4×106 $6.4\times {10}^{6}$ m3 ${\mathrm{m}}^{3}$ present on the rim. The integrated results highlight the potential for characterizing the subsurface of planetary bodies in greater detail and provide high‐fidelity data simulations for astronaut training. The operational insights serve as a valuable guideline for future crewed lunar missions and contribute to the development of strategies for optimizing planetary exploration.

Muniba Osmanović, Edin Hrelja

The severity and frequency of short-term but highly damaging urban floods have increased in recent years worldwide and have been caused by climate change. The casualties of urban floods are usually not high, but the material damage and economic losses can be quite significant due to the population density of these areas and the various economic activities concentrated in urban regions. For this reason, this type of flooding is always catastrophic. This paper explores the impact of urban flooding on the tourism infrastructure in Bihać using the multi-criteria ArcGIS analysis. The results show that 55.8% of the studied area is at a low elevation and has gentle slopes, making it particularly susceptible to flooding. Annual precipitation reaches up to 1,305 mm, with 35–38% of the total rainfall recorded in the urban centre of Bihać, where the key tourism infrastructure is located. The buffer zone analysis revealed that most hospitality and accommodation facilities are situated within 20 to 100 meters of the Una River’s shoreline, making them directly vulnerable during seasonal floods. Despite this, the number of tourist arrivals has been steadily increasing – from 33,433 arrivals in 2021 to 48,330 in 2023, with foreign tourists accounting for 60% of all visitors. The research findings highlight the need for the implementation of precise spatial plans and protective measures to reduce the negative impact of floods on tourism trends in this city.

Merima Činjarević, Adi Alić, Naida Hašimović

Abstract The present study explores linkages between the relational driver (brand involvement) and relationship outcomes (affective brand commitment and brand community identification) of consumer brand engagement among luxury and neo-luxury brands. The sample consisted of 616 consumers, compromising 311 owners of the Hugo Boss brand and 305 owners of the Massimo Dutti brand. Structural equation modelling (SEM) and multi-group analysis were used to test the proposed hypotheses. Findings suggest that brand involvement positively influences the three facets of consumer brand engagement - cognitive, affective, and behavioural, in the context of luxury and neo-luxury consumption. Moreover, the affective component of consumer brand engagement strongly predicts affective brand commitment for luxury and neo-luxury brands. Our findings indicate that the brand community identification with luxury and neo-luxury brands is only driven by affective consumer engagement.

L. Turulja, Selma Smajlović, Vanja Šimičević

Abstract Background Rapid changes and dynamic markets significantly impact the way businesses operate. Many companies fail to adapt and innovate their business models, which jeopardises their sustainability. Managers, as key decision-makers, play a pivotal role in the innovation process, whereby their entrepreneurial competencies directly influence various dimensions of business model innovation. Objectives The main aim of this study is to examine the impact of entrepreneurial competencies on the new value proposition dimension of business model innovation (BMI), exploring competencies such as opportunity recognition, analytical thinking, innovativeness, tenacity, and passion for work. It investigates how these competencies contribute to developing new offerings and new channels, attracting new customers and markets, and building new customer relations. Methods/Approach The study is conducted on a sample of 267 managers of medium and large companies across various industries in Bosnia and Herzegovina. The data were analysed using Structural Equation Modelling (SEM). Results The results show that different entrepreneurial competencies have a significant impact on various aspects of a new value proposition. Conclusions The study contributes to a deeper understanding of the influence of different entrepreneurial competencies on new value proposition dimensions within BMI. Managers who effectively utilise these competencies can enhance their companies’ value propositions, thereby increasing competitiveness and business success.

Lejla Obradovic Salcin, Daria Ostojic, Vesna Miljanović-Damjanović, Nataša Zenić, Marijana Geets Kesic

Studies dealing with injury occurrence in basketball refereeing are scarce. The aim of this preliminary investigation was to retrospectively observe injury occurrence and analyze some specific predictors of injury in high-level basketball referees. The participants were basketball referees from Croatia and Bosnia and Herzegovina (all males, n=39, 25–45 years of age, with more than 5 years of experience in basketball refereeing). Data were collected via structured, previously validated questionnaire, and the variables included specific sociodemographic factors, basketball refereeing factors, and medical (injury-related) factors. Differences between injured and noninjured referees were calculated via t tests and chi-square tests, whereas associations between predictors and injury occurrence (criterion) were evaluated via logistic regression for binarized criterion. Injury occurrence was relatively low, with only 15% of referees reporting an injury during the previous competitive season. A higher level of basketball refereeing (more advanced competitive level) was associated with a greater likelihood of being injured (OR=1.44, 95% CI: 1.02–1.98). Additionally, referees who used dietary supplements were more likely to be injured during the previous competitive season (OR=1.51, 95% CI: 1.01–2.05). Although preliminary, the results emphasize the need for structured prevention strategies and support systems tailored specifically to the challenges of high-level officiating.

M. Čolić, Sergej Tomić, M. Bekić, Anđela Dubovina, Hanns Häberlein, André Rademaekers, Srđan Mašić, D. Bokonjić

Background/Objectives: Ivy leaf extract has been shown to alleviate bronchial infection symptoms through various mechanisms, including anti-inflammatory effects. However, its impact on adaptive immunity, particularly dendritic cell (DC)/T-cell interactions, remains unexplored. This study investigated the immunomodulatory potential of ivy leaf extract (EA 575®) using human monocyte-derived DCs (MoDCs). Methods: Immature MoDCs (imMoDCs) were differentiated with IL-4/GM-CSF and matured with LPS/IFN-γ (mMoDCs). MoDCs, treated with EA 575® during differentiation, were co-cultured with purified T cells. Results: EA 575® (non-cytotoxic up to 100 µg/mL) inhibited MoDC differentiation and maturation by reducing the expression of CD1a, CD83, CD40, CD86, HLA-DR, Dectin-1, CD206, CD209, HIF-1α, and proinflammatory cytokines (IL-12, IL-23, IL-27, IL-1β, IL-6, TNF-α). EA 575®-treated mMoDCs suppressed allogeneic T-cell proliferation and reduced Th1 (IFN-γ), Th17 (IL-17A, IL-22), Th9 (IL-9), Th21 (IL-21), TNF-α, and IL-6 responses. Effects were dose-dependent, with higher concentrations (100 µg/mL) showing stronger inhibition. At lower concentrations (20 µg/mL), EA 575® increased Th2 (IL-4, IL-5) and IL-10 responses, and the frequencies of CD4+ T cells with Treg properties, such as CD25hiFoxp3+, Tr1 (IL-10+Foxp3−), and IL-35+ Foxp3+ cells. Immunoregulatory mechanisms mediated by EA 575®-treated mMoDCs correlated with the upregulation of tolerogenic markers (PD-L1, ILT3, ILT4, IDO1) on mMoDCs and the increased frequency of exhausted CD4+ T cells (PD-1+CD69+) and cytotoxic T cells (Granzyme B+PD-1+). Conclusions: EA 575® induces tolerogenic DCs with significant anti-inflammatory and immunoregulatory properties, a previously undescribed phenomenon. Lower concentrations primarily enhance immunoregulatory responses, while higher concentrations exert more pronounced anti-inflammatory effects.

Patricija Bajt, Anita Racetin, Nela Kelam, Nikola Pavlović, P. Todorović, Marinela Jelinčić Korčulanin, N. Filipović, I. Kuzmić Prusac et al.

Congenital anomalies of the kidney and urinary tract (CAKUT) are a major cause of pediatric renal failure, but the molecular mechanisms driving these conditions are not yet fully understood. Fibroblast Growth Factor 23 (FGF23) and its co-receptor α-KLOTHO play crucial roles in regulating calcium and phosphate homeostasis in adult kidneys, but their roles in kidney development and the pathogenesis of CAKUT remain unclear. Because of that, we analyzed the spatial and temporal expression of FGF23 and α-KLOTHO in normal fetal kidney development and CAKUT using an immunofluorescence technique. Our results demonstrate a dynamic pattern of FGF23 and α-KLOTHO expression in healthy kidney development, with FGF23 levels decreasing and α-KLOTHO levels increasing with gestational age. Also, we showed that FGF23 expression was significantly reduced in horseshoe (HKs) and duplex kidneys (DKs), while α-KLOTHO expression remained unchanged across all CAKUT conditions. Based on our results, we suggest that altered FGF23 expression in CAKUT contributes to disease pathogenesis and may represent a potential therapeutic target.

Emir Sudžuka, Dženan Kulović, D. Hruška, Jelena Nikolić

Abstract This paper examines the key aspects of corporate governance of state-owned enterprises (SOEs) through a comparative survey conducted in Bosnia and Herzegovina, Croatia, and Serbia. The research explores two distinct perspectives: the state’s view on the necessity and governance of SOEs, and the perspective of SOE boards on operational and strategic challenges. From the state’s perspective, the survey addresses issues such as the protection of national economic interests, state ownership in key industries, equitable service provision, and the reinvestment of SOE profits into public projects. Findings suggest a strong alignment among respondents across all three countries, supporting the idea that state ownership ensures economic sovereignty and guarantees fair access to essential services. On the other hand, the board perspective highlights concern about the bureaucratic barriers faced by SOEs, the influence of political interference on financial performance, and the limitations of public ownership in enhancing global competitiveness. Board respondents expressed the need for greater autonomy in decision-making and stressed the importance of partnerships with the private sector to optimise SOE efficiency and market position. The article synthesises these findings to address the broader question: Are SOEs essential in modern economies, or do they require reform to meet contemporary challenges? The results indicate that while SOEs hold strategic importance, reforms focused on reducing bureaucracy, enhancing governance, and promoting public-private partnerships are crucial for their future viability.

D. Čamo, A. Zahirović, D. Preldžić, T. Mutevelić, J. Isović, A. Maksimović

Stray dogs may be highly exposed to vector-borne pathogens (VBP), including zoonotic agents, and therefore may pose a high risk of spreading infection to other animals and humans. Our study is the first large-scale prevalence study of VBP in stray dogs in Canton Sarajevo, Bosnia and Herzegovina. During the period 2016–2018, a total of 3720 blood samples of stray dogs were screened by the SNAP 4Dx plus test for antibodies against Anaplasma spp., Ehrlichia spp., B. burgdorferi s.l., and D. immitis. The 910 dogs (910/3720, 24.46%) were seropositive for one or more CVBPs. The proportion of seropositive dogs against one, two, or three pathogens was 864 (23.23%), 43 (1.15%), and 3 (0.08%), respectively. The most prevalent canine VBP was Anaplasma spp. (21.59%), followed by B. burgdorferi s.l. (2.47%) and Ehrlichia spp. (1.13%). The lowest prevalence was recorded for D. immitis (0.5%). The number of seropositive dogs older than 1 year was 704 (704/2497, 28.19%), while the number of dogs younger than 1 year was 206 (206/1223, 16.84%). The most common dual coinfection detected was with Anaplasma spp. and B. burgdorferi s.l. (26/3720, 0.7%). The results show that stray dogs are exposed to at least one of these four CVBD pathogens. Since some of these pathogens cause zoonoses, controlling these infections is crucial for both veterinary and public health. These findings highlight the need for continuous serological monitoring of CVBD pathogens in stray dogs due to their risks to animal and human health.

Arnela Kaknjo, L. Turulja

In the modern business environment, big data analytics and data mining techniques are increasingly recognized as tools for improving fiscal discipline and more efficient management of public revenues. This paper explores the possibility of applying the knowledge discovery process from databases to detect patterns of financial behavior that may indicate tax non-compliance. A quantitative approach based on the analysis of secondary data from ten joint-stock companies from the Federation of Bosnia and Herzegovina, for which financial statements and tax debt data are available, was used. The relationship between key financial indicators (EPS, financial stability ratio, total asset turnover ratio and debt ratio) and the amount of tax debt was examined using descriptive statistics and regression analysis. The results show that lower profitability and poorer financial stability significantly correlate with higher tax debt, while high operational efficiency and debt have a more complex and statistically marginal impact. The findings confirm the possibility of using publicly available financial data for early identification of risky taxpayers, which opens up space for further development of predictive models in the domain of tax analytics.

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