1. Agri-environmental schemes reduce variable input costs : evidence from Slovenian farmsŠtefan Bojnec, Imre Fertő, 2026, izvirni znanstveni članek Opis: Agri-environmental schemes (AES) are central policy instruments designed to promote environmentally friendly agricultural practices by financially supporting the adoption of sustainable land management. While a substantial body of research examines how AES influence environmental outcomes and overall farm performance, far less is known about their direct effects on farm-level variable input costs, particularly in terms of energy, fertilizer, and crop protection expenditures. Existing studies typically analyse eco-efficiency or broad economic-environmental indicators, leaving a critical empirical gap regarding whether and how AES reshape the cost structure of farms during and after adoption. This study addresses this gap by estimating the causal impact of AES participation on key variable input costs using Slovenian Farm Accountancy Data Network data and a Differences-in-Differences (DID) design with staggered adoption, supported by robustness and sensitivity analyses. The findings indicate that AES participation leads to significant reductions in pesticide and energy costs, while fertilizer expenditures tend to increase in the short term before stabilizing or declining over time. These patterns suggest that AES trigger structural adjustments in production—such as reduced tillage intensity and transitions to organic or biological inputs—that can initially raise some input costs but contribute to longer-term sustainability. The study therefore offers new empirical evidence on the cost implications of AES, improving understanding of how environmental policy instruments affect farm-level economic decisions. These insights are essential for designing AES that support both environmental objectives and the economic viability of farmers, particularly in regions where sustainability transitions may involve short-term trade-offs.
Ključne besede: agri-environmental schemes, resources in agriculture, energy, fertilizer, crop protection, variable input costs, Slovenian agriculture
Objavljeno v RUP: 23.03.2026; Ogledov: 205; Prenosov: 6
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2. Adherence and metabolic outcomes of early and late time-restricted eating with energy restriction vs. energy restriction alone : a 6-month follow-upTanja Črešnovar, Bernarda Habe, Nina Mohorko, Saša Kenig, Zala Jenko Pražnikar, Ana Petelin, 2026, izvirni znanstveni članek Opis: Background/Objectives: Long-term weight maintenance remains challenging with conventional dietary strategies due to various barriers. Time-restricted eating (TRE) has recently attracted attention as a potential approach to improve adherence, but evidence on long-term maintenance is limited. We investigated the 6-month follow-up (6FU) of early time-restricted eating with energy restriction (eTRE + ER), late time-restricted eating with energy restriction (lTRE + ER) and energy restriction alone (ER). Methods: This 6FU included 69 of 93 participants from a previously conducted 3-month intervention (3INT). After the intervention, participants returned to free-living conditions without dietary guidance. Outcomes included adherence, perceived barriers, body composition, blood pressure, cardiometabolic risk factors, metabolic hormones, subjective appetite, and dietary intake. Results: Adherence of at least ≥5 days per week was low: 7.7% (eTRE + ER), 18.2% (lTRE + ER), and 9.5% (ER). Reduced adherence during the 6FU was associated with a partial reversal of improvements in body mass, body composition, cardiometabolic risk factors, metabolic hormones, and subjective appetite observed during the 3INT. Analysis of perceived barriers showed that environmental and psychosocial barriers were significant predictors of changes in body mass during the 6FU, while environmental and behavioral barriers were associated with extension of the eating window. These associations were most pronounced in the eTRE + ER group. Conclusions: During the 6FU, differences between dietary strategies gradually diminished, although some remained clinically meaningful. Long-term adherence was low across all three dietary strategies, with psychosocial, environmental, and behavioral barriers particularly evident in the eTRE + ER group. Further research is needed to confirm long-term adherence before TRE + ER interventions can be widely applied in clinical practice.
Ključne besede: early time-restricted eating, late time-restricted eating, energy restriction, overweight, obesity
Objavljeno v RUP: 22.03.2026; Ogledov: 311; Prenosov: 9
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3. Analysis of the Effect of Eco-Efficiency on Asset Return in Food and Beverage Manufacturing Companies Listed at the Johannesburg Stock ExchangeDimakatso Hellen Malapa, Collins C. Ngwakwe, 2025, izvirni znanstveni članek Opis: This article examines the effect of eco-efficiency on corporate return on assets (ROA). The paper aimed to analyse whether corporate eco-efficiency performance (represented by energy consumption, water consumption, carbon emission and waste generation) affects the performance of ROA. Data on the eco-efficiency and ROA was collected from fourteen food and beverage companies listed in the Johannesburg Stock Exchange for a period of ten years (2012 to 2021). Using the STATA Software, the data was analysed by applying the Generalised Method of Moment (GMM) statistical technique, which enhanced the statistical analysis robustness. Findings from the GMM analysis showed different results. On the one hand, the results indicate that energy and water consumption in the food and beverage companies have a positive (but insignificant) effect on ROA. On the other hand, the results show that waste generation has a negative (but insignificant) effect on ROA; and that carbon emission has a negative and significant effect on ROA.
Ključne besede: environmental accounting, return on assets, financial performance, eco-efficiency, energy consumption, water consumption, carbon
emission, waste generation, sales revenue
Objavljeno v RUP: 18.12.2025; Ogledov: 360; Prenosov: 1
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4. Agri-environmental schemes and input costsŠtefan Bojnec, Imre Fertő, 2025, objavljeni povzetek znanstvenega prispevka na konferenci (vabljeno predavanje) Opis: Agri-environmental schemes (AECS) are integral components of the European Union’s Common Agricultural Policy, designed to promote environmentally sustainable farming practices and mitigate the adverse impacts of agriculture on ecosystems by providing financial incentives to farmers (Unay-Gailhard and Bojnec, 2016; Ait Sidhoum, Canessa, and Sauer, 2023). This study analyses the impact of AES participation on variable input costs for energy consumption, fertilizer use, and crop protection in Slovenia. Findings indicate that AES participation significantly reduces fertilizer, pesticide, and energy costs. While AES lower input costs, they may also lead to short-term yield reductions, potentially affecting farm profitability and farm efficiency (Baráth, Fertő, and Bojnec, 2020). These results highlight the need for complementary policies that enhance sustainable yield improvements and farm resilience. By promoting resource-efficient practices, AES contributes to reducing environmental externalities such as soil and water pollution and improving population wellbeing (Fukuyama, Hashimoto and Weber, 2020). The study underscores AES as essential for the transition to sustainable agriculture while emphasizing the challenge of balancing environmental, economic, and other sustainability objectives (Fertő and Bojnec, 2024, 2025). Policymakers should consider strategies that support both ecological benefits and farm income stability, ensuring long-term agricultural sustainability and resilience in the face of environmental and economic challenges.
Ključne besede: agri-environmental schemes, costs, energy, fertilizer, crop protection, Slovenia
Objavljeno v RUP: 18.08.2025; Ogledov: 668; Prenosov: 7
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6. Effects of time-restricted eating (early and late) combined with energy restriction vs. energy restriction alone on the gut microbiome in adults with obesityBernarda Habe, Tanja Črešnovar, Matjaž Hladnik, Jure Pražnikar, Saša Kenig, Dunja Bandelj, Nina Mohorko, Ana Petelin, Zala Jenko Pražnikar, 2025, izvirni znanstveni članek Opis: Background: Early time-restricted eating combined with energy restriction (eTRE + ER) has been shown to reduce fat mass, diastolic blood pressure (DBP) and fasting glucose more effectively than late TRE with energy restriction (lTRE + ER) or energy restriction (ER) alone. Given the gut microbiome’s sensitivity to circadian rhythms, we examined whether adding TRE, particularly eTRE, to ER alters gut microbiota composition beyond ER alone, and whether such effects persist during follow-up. Methods: We analysed anthropometric, biochemical and gut microbiome data from 76 participants at baseline and after a 3-month intervention (eTRE + ER: n = 33; lTRE + ER: n = 23; ER: n = 20). Follow-up microbiome data 6-months after the end of intervention were available for 43 participants. Gut microbiota composition was assessed via 16S rRNA gene sequencing of stool samples. Results: No significant between-group differences in beta diversity were observed over time. However, changes in alpha diversity differed significantly across groups at the end of the intervention (Shannon: F = 5.72, p < 0.001; Simpson: F = 6.72, p < 0.001; Richness: F = 3.99, p = 0.01) and at follow-up (Richness: F = 3.77, p = 0.02). lTRE + ER led to the greatest reductions in diversity post intervention, while ER was least favourable during follow-up. Although no significant between-group differences were observed at the phylum level either at the end of the intervention or during follow-up, only the eTRE + ER group exhibited a significant decrease in Bacillota and an increase in Bacteroidota during follow-up. At the genus level, differential abundance analysis revealed significant shifts in taxa such as Faecalibacterium, Subdoligranulum, and other genera within the Ruminococcaceae and Oscillospiraceae families. In the eTRE + ER, Faecalibacterium and Subdoligranulum increased, while in other groups decreased. Notably, the changes in Faecalibacterium were negatively correlated with fasting glucose, while the increase in Subdoligranulum was inversely associated with DBP; however, both associations were weak in strength. Conclusions: eTRE + ER may promote beneficial, lasting shifts in the gut microbiome associated with improved metabolic outcomes. These results support further research into personalized TRE strategies for treatment of obesity.
Ključne besede: eating window, energy restriction, microbiota, alpha and beta diversity, metabolic health, obesity
Objavljeno v RUP: 17.07.2025; Ogledov: 902; Prenosov: 7
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7. Early time-restricted eating with energy restriction has a better effect on body fat mass, diastolic blood pressure, metabolic age and fasting glucose compared to late time-restricted eating with energy restriction and/or energy restriction alone : a 3-month randomized clinical trialTanja Črešnovar, Bernarda Habe, Nina Mohorko, Saša Kenig, Zala Jenko Pražnikar, Ana Petelin, 2025, izvirni znanstveni članek Opis: Background & aims Time-restricted eating (TRE) has attracted increasing attention from researchers and the public. Recent studies suggest that the combination of TRE with energy restriction (ER) may have more favourable effects on both physical and biochemical aspects compared to ER alone. The aim of the present 3-month intervention study was to determine the effects of an 8-h early time-restricted eating and an 8-h late time-restricted eating with ER (eTRE + ER and lTRE + ER) compared to 12-h ER alone on body mass and other anthropometric and cardiometabolic risk factors in participants with overweight and obesity. Methods Participants (n = 108) were allocated to three different groups according to their personal chronotype: eTRE + ER (37 participants), lTRE + ER (37 participants) and ER (34 participants). Ninety-three participants completed the entire 3-month intervention (34 in eTRE + ER, 28 in lTRE + ER and 31 in ER). Anthropometric and cardiometabolic risk factors were measured at baseline and after 1, 2 and 3 months of the intervention. Sleep quality and quality of life were assessed at baseline and after 3 months of the intervention. ER was determined based on the individual's resting metabolic rate. Effects were analyzed using the per-protocol approach. Results Results showed a significant time main effect (p < 0.001), suggesting a decrease in body mass at the end of the 3-month intervention with a mean loss of −5.0 kg (95 % CI, −5.7, −4.3) for the eTRE + ER group, −4.4 kg (95 % CI, −5.2, −3.6) for the lTRE + ER group and −4.3 kg (95 % CI, −5.0, −3.6) for the ER group, with no significant difference between the groups (p = 0.319). eTRE + ER had greater improvements in fat mass (−1.2 % (95 % CI, −2.1, −0.2), p = 0.013) and fasting glucose (−0.35 mmol/L (95 % CI, −0.63, −0.06), p = 0.012) than participants in the lTRE + ER group and greater improvements in fat mass (−1.1 % (95 % CI, −2.0, −0.1), p = 0.022), metabolic age (−3 years (95 % CI, −5, −0), p = 0.028) and diastolic blood pressure (−4 mmHg (95 % CI, −8, −0), p = 0.033) than the participants in the ER group. No significant changes were found between the groups for the other parameters measured. Conclusions There was no difference in body mass between the eTRE + ER, lTRE + ER and ER groups after 3 months of intervention. However, eTRE + ER showed a greater benefit for fasting blood glucose, certain anthropometric parameters and diastolic blood pressure compared to lTRE + ER and/or ER alone. Other anthropometric, biochemical and health-related parameters were not affected by eating window.
Ključne besede: time-restricted eating, overweight, chronotype, body composition, intermittent fasting, energy restriction
Objavljeno v RUP: 30.05.2025; Ogledov: 1742; Prenosov: 22
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8. Exploring the bounds and relationships of chemical graph indices : master's thesisArbër Avdullahu, 2023, magistrsko delo Ključne besede: energy of a graph, Randić index, first Zagreb index, IRB index, extremal graph, spectrum, eigenvalue, metaheuristic
Objavljeno v RUP: 05.10.2023; Ogledov: 1942; Prenosov: 20
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9. Comparing the environmental impacts of wooden buildings in Spain, Slovenia, and GermanyAlberto Quintana-Gallardo, Oihana Gordobil, Erwin Andreas Meissner Schau, Eva Prelovšek Niemelä, Michael David Burnard, 2021, izvirni znanstveni članek Ključne besede: regenerative sustainability, wood frame construction, energy simulation, life cycle assessment
Objavljeno v RUP: 24.11.2021; Ogledov: 3565; Prenosov: 32
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10. Decentralized data management privacy-aware framework for positive energy districtsSidra Aslam, Viktor Bukovszki, Michael Nicolas Mrissa, 2021, izvirni znanstveni članek Ključne besede: positive energy districts, access control, security, energy transition, decentralized framework, blockchain, security, privacy
Objavljeno v RUP: 29.10.2021; Ogledov: 3523; Prenosov: 46
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