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Wildlife–vehicle collisions (WVCs) represent a growing safety, ecological, and economic challenge, with direct consequences for human lives, material damage, and biodiversity conservation. In the Federation of Bosnia and Herzegovina, systematic analyses that link traffic accidents caused by collisions with wildlife are lacking. This research identifies high-risk locations of WVCs and applies geospatial analysis to the main roads of the Federation of Bosnia and Herzegovina. The analysis is based on official police reports documenting 14,169 traffic accidents between 2021 and 2023, of which 104 cases (0.73%) were classified as animal-related. Although species were not specified in the reports, these accidents predominantly occurred in areas where wildlife crossings are expected, and thus are treated as potential wildlife–vehicle collisions. The results indicate a concentration of WVCs in nine municipalities, with eight critical road segments identified on main roads. Additional analyses explored the relationship between collisions, road infrastructure (bridges, tunnels), and ecological features of habitats (Emerald Network, Natura 2000, Red List of FBiH, IUCN). Based on the findings, it can be concluded that spatially targeted prevention is essential, with priority given to infrastructural measures (wildlife overpasses, fencing, signage) and strategic measures (improved databases, continuous monitoring, and integration into spatial planning). The obtained results provide a foundation for policies that simultaneously enhance traffic safety and contribute to the protection of wildlife populations.

A. Vidak, I. Movre Šapić, V. Gomzi, V. Mešić

Immersive virtual reality (IVR) can heighten presence and enable active, embodied interaction in realistic 3D environments, which has been associated with potential benefits in physics education. This article presents a comprehensive review of IVR implementation in physics education at both school and university levels. The analysis included 34 studies indexed in Scopus and ERIC, published between 1 January 2018 and 1 June 2025. Methodologically, this review followed a preferred reporting items for systematic reviews and meta-analyses approach. IVR implementations for physics learning were assessed, topic-aligned activity types were summarized, and associated opportunities and challenges were documented. Findings indicate that IVR can support physics learning by providing complementary visualizations, optimizing cognitive load, enabling haptic learning, saving time, and fostering collaborative inquiry. Conversely, the most frequent potential IVR challenges include discomfort, unreliable interaction, orchestration issues, relatively high costs, and significant extraneous cognitive load.

E. Bećirović, Minela Bećirović, Jusuf Hodžić, Amir Bećirović, Mugdim Bajrić, Admir Abdić, Fahrudin Šabanović, Emir Begagić

BACKGROUND Acute hyperglycemia is frequently observed in patients presenting with acute coronary syndromes and is considered a marker of metabolic and neurohormonal stress. However, its prognostic significance relative to chronic glycemic status remains incompletely understood, particularly in patients with non-ST-segment elevation myocardial infarction (NSTEMI). Glycated hemoglobin (HbA1c) reflects long-term glycemic control but may not adequately capture acute metabolic derangements occurring during myocardial ischemia. Stress hyperglycemia reflects a transient metabolic response to acute illness mediated by counter-regulatory hormones, systemic inflammation, and increased hepatic gluconeogenesis, and does not necessarily indicate pre-existing insulin resistance or chronic dysglycemia. Recent studies suggest that stress-related hyperglycemia indices may better reflect short-term risk, yet comparative data in NSTEMI populations remain limited. AIM To determine whether admission stress hyperglycemia indices are associated with early mortality in patients with non-ST elevation myocardial infarction. METHODS This prospective, single-center observational study consecutively enrolled 171 patients admitted with confirmed NSTEMI. Stress hyperglycemia was assessed using the stress hyperglycemia ratio (SHR) and the admission glucose-to-chronic glycemia ratio (ACGR), calculated from admission plasma glucose and HbA1c values obtained at hospital presentation. Patients were categorized according to established HbA1c thresholds. Clinical, laboratory, and echocardiographic data were systematically collected. All patients were followed for three months after discharge. The primary endpoint was the occurrence of major adverse cardiovascular events (MACE), defined as a composite of cardiovascular death, non-fatal myocardial infarction, or urgent coronary revascularization. The secondary endpoint was all-cause mortality. Discriminatory performance was evaluated using receiver operating characteristic (ROC) curve analysis. Multivariable logistic regression models were constructed to assess the independent and incremental prognostic value of stress hyperglycemia indices before and after adjustment for established clinical and echocardiographic predictors. RESULTS During the three-month follow-up period, 88 MACE and 25 deaths were recorded. HbA1c categories were not significantly associated with all-cause mortality or MACE. In contrast, admission glucose levels, SHR, and ACGR were significantly higher in non-survivors than in survivors. No significant differences in HbA1c were observed between outcome groups. Stress hyperglycemia indices demonstrated modest discriminatory ability for predicting mortality and showed greater discrimination than HbA1c in ROC analyses. In multivariable models, both SHR and ACGR remained independently associated with early mortality after adjustment for demographic, clinical, and echocardiographic variables, whereas no independent association with the composite MACE endpoint was observed. ROC-derived thresholds used for survival analyses were exploratory and have not been externally validated. CONCLUSION In patients with NSTEMI, stress hyperglycemia indices assessed at hospital admission are independently associated with early mortality, whereas chronic glycemic status shows limited prognostic relevance. These indices appear to reflect acute systemic stress and metabolic instability and may provide clinically useful information for early risk stratification during the initial phase of hospitalization, particularly when comprehensive echocardiographic assessment is not yet available.

Michela Giordano, Michela Pinna, I. López, Mélanie Cornet, Nihada Delibegović Džanić

This paper presents a reflective analysis of the International Teacher Education (ITE) eTwinning Lab 2025-26, a transnational collaborative project involving pre-service teachers at the University of Cagliari (Italy) in partnership with Aix-Marseille Université (France), the University of Castilla-La Mancha (Spain), and the University of Tuzla (Bosnia and Herzegovina). Framed by the eTwinning annual theme “Citizenship education: celebrating what unites us”, the 12-hour laboratory engaged pre-service primary teachers (Pinter, 2017) in designing and simulating transnational, project-based learning experiences using English as a Lingua Franca. Grounded in the principles of Content and Language Integrated Learning (CLIL) (Coyle, Hood, & Marsh, 2010) and digital pedagogy, the lab aimed to develop participants’ soft skills and transversal competences: digital literacy, intercultural communication, collaborative project design, pedagogical innovation, and professional discourse community building (Swales, 1990). Employing a mixed-methods approach, data were analysed from post-project questionnaires (N=95 [Cagliari], N=10 [Tuzla], N=10 [Aix-Marseille], N=8 [Castilla-La Mancha]), ongoing formative assessments (through the usage of several tools as Mentimeter, AnswerGarden, and Padlet), and analysis of collaborative outputs (Canva projects). Findings reveal significant improvement in digital tool mastery, particularly with AI chatbots and collaborative platforms, and, most of all, enhanced intercultural awareness and learners’ self-confidence. It is argued here that this experience, with both its products and processes, can contribute to the growing literature on online teacher education and can provide a replicable model for integrating eTwinning into university-based training programs across Europe.

Zorana Mandić, Tijana Begović, S. Lubura

A frequency-locked loop synchronization with an inherent orthogonal signal generator is one of the key enablers of reliable synchronization for grid-connected power converters. An accurate and robust grid synchronization is essential for stable control and power regulation in those applications. Conventional structures, commonly based on second-order generalized integrators, may operate irregularly in the presence of measurement noise, harmonic distortion, frequency changes and a DC-offset component. To address this issue, a modified Kalman-based generator with the DC-offset immunity is integrated into the conventional frequency-locked loop. The proposed approach utilizes a state-space oscillator model equipped with an additional state for DC-offset component estimation, enabling generation of orthogonal signal with DC-offset rejection. The effectiveness of the proposed loop is verified in the MATLAB/Simulink environment under numerous tests such as DC-offset introduction, sudden amplitude and frequency changes. The shown results demonstrate accurate grid voltage estimation and ripple-free frequency estimation with providing robustness and accuracy against conventional structures.

David Góez, Paola Soto, Nina Slamnik-Kriještorac, Natalia Gaviria Gómez, Johann M. Márquez-Barja, Miguel Camelo Botero

Future 6G edge-intelligent radios require neural networks that satisfy strict latency and energy constraints, yet the practical behaviour of quantization-aware Neural Architecture Search (NAS) models on real Field-Programmable Gate Array (FPGA) hardware remains insufficiently explored. This work evaluates a set of Pareto-optimal architectures generated by a quantization-aware NAS MONAS-LQ, together with state-of-the-art reference models, when deployed on an FPGA using the Brevitas-FINN-Vivado toolchain. The results show that all models found by MONAS-LQ maintain accuracy within 0.30% of server-side execution, with several exhibiting slight improvements, while energy consumption remains below 20 mJ/sample and latency is dominated by early convolutional layers rather than overall model size. Compared to existing quantized architectures, the MONAS-LQ models achieve more favourable accuracy–efficiency trade-offs. These findings highlight the relevance of hardware-aware NAS for deriving deployable and energy-efficient Deep Learning (DL) models tailored to the resource constraints of future edge-intelligent radio systems.

David Góez, Marco Piazzola, Giulia Costa, Nina Slamnik-Kriještorac, Johann M. Márquez-Barja, Miguel Camelo Botero

We present LITE, a lightweight trajectory-unaware CSI estimation framework implemented as an O-RAN xApp and integrated within a CF-MaMIMO emulator. LITE compresses high-dimensional CSI at the O-DU, transports a compact latent representation over the midhaul, and predicts short-horizon channel gains at the Near-RT RIC using a compact SE-BiLSTM model. The demo highlights end-to-end real-time operation, interactive visualization, fault injection, and fallback mechanisms under realistic impairments such as missing or delayed measurements. Results show stable and accurate per-AP predictions while meeting Near-RT latency constraints, demonstrating the feasibility of embedding bandwidth-aware intelligence in O-RAN-compliant RAN loops.

Maida Islamagić, Raúl Cuervo Bello, Miguel Camelo Botero, Johann M. Márquez-Barja, Nina Slamnik-Kriještorac

With the stringent requirements of evolving vertical services, there is a growing need for more flexible, ultra low-latency Beyond 5G (B5G)/6G architectures. One way to achieve this is by disaggregating core network functions and deploying them closer to the end users. The distribution and optimal placement of both Control Plane (CP) and User Plane (UP) functions at the network edge, along with the collocated orchestrated Application Functions (AFs), can significantly improve End-to-End (E2E) latency and network reliability by avoiding unnecessary traffic flows to the centralized cloud servers. Furthermore, as 5G evolves into 6G, automated and intelligent network management solutions will be needed in the distributed communication compute continuum. This paper presents an early-stage PhD research direction that focuses on the optimal quality-aware disaggregation of 5G core functions, aiming to reduce E2E latency and improve the throughput of 6G vertical services. The focus is on the optimal User Plane Function (UPF) placement, as well as the other CP functions and AFs, which altogether interact with the UPF. As UPF is directly involved in user data forwarding, it is crucial for handling user traffic over 5G/B5G network and, as such, it significantly impacts E2E latency. This paper provides i) an overview of theoretical concepts and State of the Art (SotA) UPF placement methodologies, and ii) future directions for optimized placement of B5G Core and application functions within the edge cloud continuum, leveraging intelligent network and service orchestration solutions.

Xhulio Limani, Miguel Camelo Botero, Joris Finck, Bart Lowyck, Johann M. Márquez-Barja, Nina Slamnik-Kriještorac

Teleoperation is increasingly used to complement Level-4 autonomous driving, but it depends on strict network requirements i.e., latency below 5 ms, uplink throughput exceeding 25 Mbps, and reliability of 99.999%. To meet such requirements Network Slicing has emerged as a key paradigm to allocate and isolate network resources. However, in current 5G Standalone (5G SA)networks, Network Slicing faces fragmented orchestration. 3GPP mechanisms govern the 5G Core (5GC), O-RAN manages Radio Access Network (RAN) resources, while Transport Network (TN) operates separately, limiting end-to-end Quality of Service (QoS) guarantees.In this work, we propose a Cross-Domain Controller (CDC) that establishes synergy between network domains i.e., 5GC, TN, and RAN, through policy-driven coordination. The CDC implements a closed-loop, threshold-based mechanism that monitors slice Key Performance Indicators (KPIs) and triggers runtime network resource reconfigurations when the Teleoperation slice requires additional capacity to meet its QoS targets. Experimental validation on a real-world 5G SA testbed demonstrates that the CDC maintains strict slice isolation while dynamically expanding allocated network resources.

A. Raza, Yiran Li, Chunli Guo, E. Karalija, E. Agathokleous, Meng Jiang, Jie Zhou, Vasileios Fotopoulos et al.

ABSTRACT Enhancing crop tolerance to multiple abiotic stresses is critical for achieving sustainable agriculture. Targeted seed‐stage interventions using natural signaling compounds (e.g., melatonin) provide a unique opportunity to establish early stress tolerance that can persist through the critical seed‐to‐seedling transition. Melatonin seed priming (MSP) is rapidly emerging as a green and climate‐smart strategy for enhancing plant stress tolerance. MSP triggers defensive molecular, biochemical, and physiological reprogramming during germination, thereby improving plant performance under subsequent stress conditions. This review synthesizes recent mechanistic insights into how MSP confers stress tolerance across diverse species by modulating redox signaling, hormonal homeostasis, and stress‐related gene networks. We elucidate the synergistic potential of MSP when combined with nanoformulations, other priming agents, or beneficial microbes. We also discuss its crosstalk with key signaling pathways to better understand the tolerance mechanisms. Furthermore, we propose a forward‐looking strategy that integrates omics, genome editing, speed breeding, and molecular phenotyping methods to improve MSP applications for the development of stress‐smart crops. Despite its potential, MSP still faces multiple challenges, including species‐specific responses, dosage variability, limited post‐priming seed storage stability, and a lack of field‐scale validation. Addressing these bottlenecks through high‐throughput screening, epigenetic memory assessment, and optimized delivery systems will be essential to fully harness the practical potential of MSP as a sustainable and green approach for future agriculture.

Lara Smoljo, Tonka Mateljak, Anita Racetin, P. Todorović, Jelena Komić, L. Komić, Petar Đolonga, Danijel Antonio Grubišić et al.

Background/Objectives: Clear cell renal cell carcinoma (ccRCC) is the most prevalent subtype of renal cancer, characterized by frequent metastasis and poor prognosis. Epithelial–mesenchymal transition (EMT) plays a pivotal role in tumor progression. Protocadherin 9 (PCDH9) has emerged as a potential tumor suppressor, but its relationship with EMT markers in ccRCC remains unclear. This study aimed to investigate the expression patterns and prognostic significance of PCDH9, β-catenin (CTNNB1), Snail (SNAI1), and Vimentin (VIM) in ccRCC. Methods: Immunofluorescence analysis was performed on formalin-fixed paraffin-embedded tissue sections from 48 ccRCC patients (31 low-grade, 17 high-grade) and adjacent normal renal cortex. Findings were validated using The Cancer Genome Atlas (TCGA-KIRC) dataset via GEPIA2/GEPIA3 platforms, including differential expression, correlation, and survival analyses. Results: PCDH9 mRNA was significantly downregulated in ccRCC tumors (TCGA-KIRC), while VIM was upregulated at the transcriptomic level. Tissue-level immunofluorescence quantification revealed discordant patterns, highlighting the influence of cellular heterogeneity on bulk protein assessment. The strong positive correlation between PCDH9 and CDH1 observed in normal kidney was completely lost in tumor tissue. Unexpectedly, PCDH9 showed positive correlations with EMT transcription factors (ZEB1, SNAI1) in tumors. In univariate survival analysis, high PCDH9 and CTNNB1 expression were associated with improved overall survival. Multivariate Cox regression revealed endpoint-specific prognostic signatures: VIM independently predicted disease progression, while SNAI1 predicted overall mortality. CTNNB1 was consistently protective across both endpoints. Conclusions: Our findings support a tumor-suppressive role for PCDH9 in ccRCC and reveal disruption of epithelial adhesion molecule co-regulation during tumorigenesis. The identification of endpoint-specific prognostic signatures has implications for patient stratification and suggests that ccRCC exhibits a partial EMT phenotype rather than classical EMT.

Jelena Cumic, R. Aničić, M. Mirkovic, Jovana Ristić, M. Kočica, D. Mostić, S. Mašić, Natasa M. Milic

Background/Objectives: Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used for postpartum pain management. However, previous studies have indicated that NSAIDs may increase systolic blood pressure, particularly in patients receiving antihypertensive therapy. The aim of the present study was to assess whether postpartum ibuprofen administration is associated with a higher risk of severe postpartum hypertension and increased mean arterial pressure (MAP) compared with acetaminophen. Methods: A systematic literature search was conducted in PubMed, Scopus, and Web of Science to identify relevant studies. Only randomized controlled trials were considered eligible for inclusion. For dichotomous outcomes, effect sizes were expressed as risk ratios (RRs) with corresponding 95% confidence intervals (CIs). For continuous outcomes, mean differences (MDs) with 95% CIs were calculated. Statistical heterogeneity among studies was assessed using the I2 statistic. A fixed-effects model was applied in cases of low heterogeneity (I2 < 20%). Results: No significant difference was observed in the prevalence of severe postpartum hypertension between the ibuprofen and acetaminophen groups (RR 1.07, 95% CI 0.84 to 1.35; p = 0.59; I2 = 0%). Similarly, MAP did not differ significantly between groups (MD −0.05 mmHg, 95% CI −1.53 to 1.42; p = 0.94; I2 = 0%). Conclusions: No increased risk of postpartum hypertension or difference in mean arterial pressure was observed between the ibuprofen and acetaminophen groups, supporting the safety of ibuprofen for postpartum analgesia in women with hypertensive disorders of pregnancy.

D. Fiorillo, A. Lella, G. Raffelt, N. Selimović, E. Vitagliano

Neutron stars (NSs) are powerful factories for new particles with masses up to the 100 keV range. These compact stars contain significant populations of charged particles, notably protons, electrons and muons. We calculate the emission rates for new scalar, vector, and pseudoscalar bosons that predominantly couple to electrons and muons. For vector bosons, the in-medium renormalization of the effective couplings strongly modifies the emission rates, e.g., purely muon-philic vectors are predominantly emitted by ultra-relativistic electrons. We focus on bremsstrahlung in electromagnetic lepton-lepton or lepton-proton collisions in the ultradegenerate limit. When protons are superconducting, the scalar and vector energy loss rates scale as $T^4$, the pseudoscalar one as $T^6$, to be compared with $T^8$ for neutrino losses by the modified Urca process. For normal-conducting protons, the screening of transverse photons implies instead scalings with a power reduced by $1/3$ and thus $T^{11/3}$ for scalars and vectors, and $T^{17/3}$ for pseudoscalars. As the NS cools, such new particle losses would become important at late times, when surface photon emission begins to take over, which itself scales roughly as $T^2$ in terms of the internal temperature. Our results can be used to constrain the leptophilic coupling strengths through observed NS cooling ages.

D. Fiorillo, A. Lella, G. Raffelt, N. Selimović, E. Vitagliano

Experimental searches for fifth forces coupled to muons are fundamentally limited by the scarcity of muons in ordinary matter, whereas neutron stars contain abundant muon populations. We show that these compact objects therefore provide superior sensitivity across a broad range of mediator masses. Neutron-star cooling implies limits of $g_{\phi\mu}\lesssim10^{-12}$ and $g_{V\!\mu}\lesssim3\times10^{-13}$ on scalar and vector bosons with masses $m_X\lesssim100$ keV, whereas SN 1987A cooling implies only $g\lesssim3\times10^{-9}$. Moreover, hydrostatic equilibrium requires any long-range muonic force to be sufficiently weak, surpassing cooling bounds for $m_X\lesssim10^{-5}$ eV. Together, these observables provide the most stringent probes of muonic interactions over distance scales ranging from picometers to kilometers.

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