1. Sedentary lifestyle is independently associated with higher fat mass index regardless of physical activity level in patients with coronary artery diseaseMarko Novaković, Diogo Salgueiro, Madalena Lemos Pires, Mariana Borges, Gonçalo Sá, Zlatko Fras, 2025, original scientific article Abstract: Background: Cardiac rehabilitation (CR) after a coronary artery disease (CAD) event is recommended to improve risk factor control, as some of them remain poorly controlled (e.g. obesity, physical activity), while new ones are emerging (e.g. sedentary behavior). The aim of our study was to investigate the associations between physical activity, sedentary behavior, and traditional risk factors with body fat mass index (FMI) in patients with CAD. Methods: In this cross-sectional study, CAD patients entering phase III CR (2016–2023) were assessed for FMI by dual-energy X-ray absorptiometry, cardiorespiratory fitness by cardiopulmonary exercise testing, 7-day accelerometer-measured physical activity and sedentary behavior, and cardiovascular risk factors. Results: There were 111 CAD patients, their average age was 61.7 ± 9.8 years, 15 (13.5%) were female. Patients were divided into three groups, based on the FMI: normal (n = 19), overweight (n = 62) and obese (n = 30). Obese patients, compared to patients with normal FMI, had significantly higher systolic blood pressure, total sedentary time, non-HDL and triglycerides levels, and lower exercise capacity. On the contrary, there were no significant differences in physical activity level, diastolic blood pressure, total cholesterol, HDL and LDL cholesterol. In a multivariate linear regression analysis, sedentary time showed an independent association with FMI, whereas physical activity did not. Conclusion: Obese CAD patients exhibit poorer control of blood pressure, lipid levels, and sedentary behavior compared with normal-weight and overweight patients. Effective strategies are needed to curb sedentary behavior in this population, which may directly reduce body fat.
Keywords: cardiac rehabilitation, obesity, sedentary behavior, physical activity, coronary artery disease
Published in DiRROS: 27.01.2026; Views: 130; Downloads: 66
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2. Changing the default order of food items in an online grocery store may nudge healthier food choicesEva Valenčič, Emma Beckett, Clare Elizabeth Collins, Barbara Koroušić-Seljak, Tamara Bucher, 2024, original scientific article Abstract: Restructuring food environments, such as online grocery stores, has the potential to improve consumer health by encouraging healthier food choices. The aim of this study was to investigate whether repositioning foods within an experimental online grocery store can be used to nudge healthier choices. Specifically, we investigated whether repositioning product categories displayed on the website main page, and repositioning individual products within those categories, will influence selection. Adults residing in Australia (n = 175) were randomised to either intervention (high-fibre foods on top) or comparator condition (high-fibre foods on the bottom). Participants completed a shopping task using the experimental online grocery store, with a budget of up to AU$100 to for one person's weekly groceries. The results of this study show that the total fibre content per 100 kcal per cart (p < .001) and total fibre content per cart (p = .036) was higher in the intervention compared to comparator condition. Moreover, no statistical difference between conditions was found for the total number of fibre-source foods (p = .67), the total energy per cart (p = .17), and the total grocery price per cart (p = .70) indicating no evidence of implications for affordability. Approximately half of the participants (48%) reported that they would like to have the option to sort foods based on a specific nutrient criterion when shopping online. This study specifically showed that presenting higher-fibre products and product categories higher up on the online grocery store can increase the fibre content of customers' purchases. These findings have important implications for consumers, digital platform operators, researchers in health and food domains, and for policy makers.
Keywords: online grocery stores, digital nudging, consumer health, food environment, choice behavior, snacks, snack choice, healthy food, food choice
Published in DiRROS: 19.01.2026; Views: 168; Downloads: 190
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3. Experimental and numerical investigation of the fire behavior of double-glass building integrated photovoltaic modules with PVB interlayersWanning Yu, Lizhong Yang, Xinyang Wang, Dimeng Lai, Grunde Jomaas, Kim M. Liew, Xiaoyu Ju, 2026, original scientific article Abstract: Amid rising global energy demands and environmental concerns, energy-efficient, or ‘green’, buildings are becoming mandatory in building regulations worldwide. In that context, building-integrated photovoltaics (BIPV), which merge photovoltaic (PV) modules with architectural design, are gaining widespread adoption. To assess fire safety aspects of BIPV, the fire performance of double-glass PV modules with polyvinyl butyral (PVB) encapsulation in BIPV façade systems was studied experimentally and numerically. More specifically, fire experiments were conducted under varying radiative heat fluxes to evaluate thermal degradation, fire behavior, and toxic gas emissions. Key parameters, including ignition time, heat release rate per unit area (HRRPUA), mass loss rate (MLR), and gas composition, were analyzed. The results confirm that a higher external heat flux markedly reduces ignition time while increasing HRRPUA and MLR for BIPV, which is in line with results for other materials. The primary toxic gases emitted during combustion were CO, CO2, H2, and SO2, with CO and CO2 emissions rising significantly at elevated heat fluxes. To complement the experimental results, a numerical model coupling transient heat conduction and pyrolysis kinetics was developed to predict the pre-ignition thermal response of the multilayer structure. The model employed layer discretization and temperature-dependent boundaries, demonstrating close agreement with experimental data. Therefore, it enabled systematic analyses of the sensitivity of PV module material flammability to incident radiative heat fluxes, material properties, and geometric configurations. This combined experimental and numerical approach offers a predictive framework for assessing fire risks and optimizing the fire safety design of BIPV systems.
Keywords: fire behavior, combustion stages, PV modules, heat conduction pyrolysis model, module toxicity, fire safety
Published in DiRROS: 13.01.2026; Views: 122; Downloads: 85
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4. Unconventional masking : even spectrally non-overlapping noise impairs insect vibrational communicationRok Janža, Nataša Stritih Peljhan, Aleš Škorjanc, Jernej Polajnar, Meta Virant-Doberlet, 2024, complete scientific database of research data Abstract: A dataset accompanying the publication Janža R. et al. (2024): Vibrational noise disrupts Nezara viridula communication, irrespective of spectral overlap. Communications Biology 7:1533, https://doi.org/10.1038/s42003-024-07185-3. Contains raw data (where appropriate) and data extracted from audio/video files, and custom code for processing in Matlab (*.m files) and R (*.rmd file)[.] Original audio and video recordings from which measurements were made are available on request from the authors.
Keywords: biotremology, vibrational noise, bed bugs, sexual behavior, data
Published in DiRROS: 27.10.2025; Views: 346; Downloads: 540
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5. Study on thermal deformation of as-CAST S32101 economical duplex stainless steelMing Zhao, Huaying Li, Xiaogang Wang, Guanzheng Su, Fang Huang, Qi Chen, Yibo Lu, 2025, original scientific article Keywords: economical duplex stainless steel, thermal deformation behavior, microstructure evolution, recrystallization, hotworking map
Published in DiRROS: 20.08.2025; Views: 516; Downloads: 256
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6. Inter-plant vibrational communication in a leafhopper insectAnna Eriksson, Gianfranco Anfora, Andrea Lucchi, Meta Virant-Doberlet, Valerio Mazzoni, 2011, original scientific article Abstract: Vibrational communication is one of the least understood channels of communication. Most studies have focused on the role of substrate-borne signals in insect mating behavior, where a male and a female establish a stereotyped duet that enables partner recognition and localization. While the effective communication range of substrate-borne signals may be up to several meters, it is generally accepted that insect vibrational communication is limited to a continuous substrate. Until now, interplant communication in absence of physical contact between plants has never been demonstrated in a vibrational communicating insect. With a laser vibrometer we investigated transmission of natural and played back vibrational signals of a grapevine leafhopper, Scaphoideus titanus, when being transmitted between leaves of different cuttings without physical contact. Partners established a vibrational duet up to 6 cm gap width between leaves. Ablation of the antennae showed that antennal mechanoreceptors are not essential in detection of mating signals. Our results demonstrate for the first time that substrate discontinuity does not impose a limitation on communication range of vibrational signals. We also suggest that the behavioral response may depend on the signal intensity.
Keywords: animal behavior
Published in DiRROS: 12.03.2025; Views: 738; Downloads: 487
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7. Specificity of male responses to female vibratory signals in two Chinavia species (Hemiptera: Pentatomidae) is based on signal structure and narrow temporal parametersSamantha da Silveira, Aline Moreira Dias, Ana Carolina Gomes Lagoa, Maria Carolina Blassioli Moraes, Miguel Borges, Andrej Čokl, Raúl Alberto Laumann, 2019, original scientific article Abstract: In this work, we tested whether variations in temporal pattern and architecture of the vibratory signals favor signals recognition and discrimination in two stinkbug species, Chinavia ubica and C. impicticornis. To relate the level of species recognition with species-specific vibratory signal we exposed males to natural or artificial signals. Different artificial signals were synthesized by changing the basic structure or temporal parameters of typical female calling signals of each species. Signals were transmitted to bean plants and the response of males was observed and recorded by a piezoelectric accelerometer. Results show that changes in temporal patterns of artificial signals significantly reduced the proportion of males responding by emitting the male song. Our results confirm that specific elements of male vibratory signals are critical for female signal recognition and discrimination by males and could contribute to prezygotic isolation in sympatric Chinavia species.
Keywords: neotropical stinkbugs, communication, sexual signals, reproductive behavior, signal architecture
Published in DiRROS: 12.03.2025; Views: 712; Downloads: 540
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8. Thermal deformation behavior of high-purity rare earth metal dysprosiumHaishuang Lv, Yanmei Li, Dounan Chen, Guohuai Liu, Rui Liu, Zhaodong Wang, 2025, original scientific article Keywords: dysprosium, hot deformation behavior, stress-strain curve, processing maps
Published in DiRROS: 21.02.2025; Views: 847; Downloads: 426
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9. Digital programs for promoting mental health among youth : a comprehensive review of design, content, and effectivenessIgor Peras, Michaela Wright, 2024, scientific monograph Abstract: This report provides an overview of evidence-based, digital preventive programs for supporting adolescents’ mental health and mental health literacy. More specifically, for promoting resilience, mindfulness and help-seeking behavior, as well as bringing awareness to internal and external resources. The literature review will serve as a base for module development in the me_HeLi-D project. The report was written based on the systematic review and meta-analysis already conducted by Uni Graz (Wright et al., 2023). Relevant data relating to content and design were extracted and analyzed from studies showing efficacy (N = 18). Other literature was freely used in the introduction and discussion sections. The aim was to learn from prior and effective mental health interventions that used digital tools and to sum up realization strategies for content and design for the me_HeLi-D project.
Keywords: vzgoja in izobraževanje, mladostniki, duševno zdravje, promocija duševnega zdravja, pozornost, čuječnost, odpornost, iskanje pomoči, digitalni programi, adolescents, mental health, promoting mental health, mindfulness, resilience, help-seeking behavior, mental health literacy, digital programs
Published in DiRROS: 27.01.2025; Views: 1119; Downloads: 458
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10. Conceptual framework of coaches’ decision-making in conventional sportsEdvard Kolar, Roberto Biloslavo, Rado Pišot, Saša Veličković, Matej Tušak, 2024, original scientific article Abstract: Introduction: A coach’s managerial and pedagogical tasks in the sports training process constitute the substantive core of their work, while decision-making serves as the fundamental method underpinning these tasks. Some decisions made by coaches result from deliberate, analytical thinking, which involves extensive information gathering, analysis, and discussion. Others, however, are made quickly and spontaneously, triggered by unforeseen situations during training or competition that demand immediate action. Consequently, the purpose of this study is to develop a conceptual framework for understanding coaches’ decision-making behavior in conventional sports. This framework aims to establish appropriate relationships between the various decisions coaches make during the training process and theoretical concepts related to decisionmaking, both in general and within the coaching context. Methods: To design the research, we used the methodology of a conceptual paper and a “model paper” approach, which seeks to build a theoretical framework that predicts relationships between distinct research concepts and scientific disciplines, aiming to integrate them into a cohesive model of coaches’ decision-making behavior. Results: The proposed conceptual framework encompasses a comprehensive range of situations that may arise during the sports training process and potential ways to address them. This framework identifies different types of decisions and characteristics associated with coaches’ decision-making behavior. It incorporates various sport-specific and general theories of decision-making and cognitive functioning to offer a deeper understanding of how coaches process and execute decisions in diverse contexts. Discussion: The developed conceptual framework outlines three primary types of decisions—strategic, tactical, and operational—each playing a distinct role in the broader sports training process. These decisions are based on different cognitive processes, which manifest in varied decision-making behaviors and are reinforced by specific leadership styles. The practical value of this framework lies in its potential application for selecting appropriate experts to address the diverse decision-making scenarios encountered in sports training. This ensures the alignment of decision-making styles with the requirements of specific training situations, thereby enhancing the effectiveness and outcomes of the coaching process.
Keywords: sport training, coaches, decision-making behavior, types of decisions, conceptual framework
Published in DiRROS: 09.01.2025; Views: 1038; Downloads: 1043
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