1. Modulation of the effect of cisplatin on nicotine-stimulated A549 lung cancer cells using analog of marine sponge toxin loaded in gelatin nanoparticlesAhmad Joukhan, Veno Kononenko, Marija Sollner Dolenc, Matej Hočevar, Tom Turk, Damjana Drobne, 2024, original scientific article Keywords: toxin, nAChR, nAChR antagonist, APS12-2, chemotherapeutic agent Published in DiRROS: 24.12.2024; Views: 29; Downloads: 10 Full text (3,34 MB) This document has many files! More... |
2. The effect of different surfactants and polyelectrolytes on nano-vesiculation of artificial and cellular membranesUrška Zagorc, Darja Božič, Vesna Arrigler, Žiga Medoš, Matej Hočevar, Anna Romolo, Veronika Kralj-Iglič, Ksenija Kogej, 2024, original scientific article Keywords: extracellular vesicles, liposomes, surfactants, polyelectrolytes, static light scattering, dinamic light scattering, microcalorimetry, drug delivery, cell-to-cell communication Published in DiRROS: 24.12.2024; Views: 31; Downloads: 11 Full text (3,13 MB) This document has many files! More... |
3. Integrated pest management strategies to control varroa mites and their effect on viral loads in honey bee coloniesJernej Bubnič, Janez Prešern, Marco Pietropaoli, Antonella Cersini, Ajda Moškrič, Giovanni Formato, Veronica Manara, Maja Ivana Smodiš Škerl, 2024, original scientific article Keywords: queen caging, trapping comb, Varroa destructor, Deformed Wing Virus, Acute Bee Paralysis Virus Published in DiRROS: 24.12.2024; Views: 34; Downloads: 8 Full text (3,71 MB) |
4. Comparative analysis of antioxidant activity and capacity in apple varieties: Insights from stopped flow DPPH• kinetics, mass spectrometry and electrochemistryLucrezia Angeli, Francesca Populin, Ksenia Morozova, Yubin Ding, Umme Āsamā, Sara Bolchini, Anka Čebulj, Nicola Busatto, Fabrizio Costa, Giovanna Ferrentino, Matteo Scampicchio, 2024, original scientific article Keywords: Fruit quality, Polyphenols, Ascorbic acid, Free radicals, Bioactive compounds, Non-browning Published in DiRROS: 24.12.2024; Views: 36; Downloads: 7 Full text (868,66 KB) |
5. Systematic review of sustainable forest management : integrating community forestry and agroforestry approachesKomang Ariyanto, 2024, review article Abstract: This systematic review addresses the need for integrating social, ecological, and economic dimensions into sustainable forest management to enhance resilience and sustainability. Existing research reveals a gap in understanding community involvement and governance effectiveness. The review synthesizes findings from diverse studies, focusing on community forestry and agroforestry practices. An analysis of 48 peer-reviewed articles and case studies was conducted to identify the best practices and key themes. Results indicate that robust institutions and effective governance are essential for sustainable forest management. Community engagement and education significantly enhance sustainable practices, with fiscal subsidies in forestry proving more effective than agricultural subsidies. Agroforestry emerges as a strategy that boosts agricultural income and biodiversity through improved market access. The conclusions emphasize the need to address social inequalities and urban pressures while fostering community participation for effective forest management. Recommendations include strengthening institutional frameworks, promoting education for sustainable practices, developing targeted policies that address identified barriers, and leveraging community participation in decision-making processes. Keywords: agroforestry systems, community forestry, institutional governance, sustainable forest management Published in DiRROS: 24.12.2024; Views: 94; Downloads: 14 Full text (910,77 KB) |
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7. Phosphorus limitation promotes soil carbon storage in a boreal forest exposed to long-term nitrogen fertilizationEtienne Richy, Tania Fort, Inaki Odriozola, Petr Kohout, Florian Barbi, Tijana Martinović, Boris Tupek, Bartosz Adamczyk, Aleksi Lehtonen, Raisa Mäkipää, Petr Baldrian, 2024, original scientific article Abstract: Forests play a crucial role in global carbon cycling by absorbing and storing significant amounts of atmospheric carbon dioxide. Although boreal forests contribute to approximately 45% of the total forest carbon sink, tree growth and soil carbon sequestration are constrained by nutrient availability. Here, we examine if long-term nutrient input enhances tree productivity and whether this leads to carbon storage or whether stimulated microbial decomposition of organic matter limits soil carbon accumulation. Over six decades, nitrogen, phosphorus, and calcium were supplied to a Pinus sylvestris-dominated boreal forest. We found that nitrogen fertilization alone or together with calcium and/or phosphorus increased tree biomass production by 50% and soil carbon sequestration by 65% compared to unfertilized plots. However, the nonlinear relationship observed between tree productivity and soil carbon stock across treatments suggests microbial regulation. When phosphorus was co-applied with nitrogen, it acidified the soil, increased fungal biomass, altered microbial community composition, and enhanced biopolymer degradation capabilities. While no evidence of competition between ectomycorrhizal and saprotrophic fungi has been observed, key functional groups with the potential to reduce carbon stocks were identified. In contrast, when nitrogen was added without phosphorus, it increased soil carbon sequestration because microbial activity was likely limited by phosphorus availability. In conclusion, the addition of nitrogen to boreal forests may contribute to global warming mitigation, but this effect is context dependent. Keywords: carbon storage, microbial communities, boreal forest, fertilization Published in DiRROS: 23.12.2024; Views: 55; Downloads: 17 Full text (10,37 MB) This document has many files! More... |
8. Rapid immobilisation of chemical reactions in alkali-activated materials using solely microwave irradiationAnže Tesovnik, Barbara Horvat, 2024, original scientific article Abstract: Efflorescence, a time-dependent and water-driven phenomenon, is a major concern inalkali-activated materials (AAMs), impacting their practical use and preservation in a time-frozen state for post-characterisation. Although a method for stopping chemical reactions in conventional cements exists, it is time-consuming and not chemical-free. Therefore, this study explored the effects of low-power microwave-induced dehydration on efflorescence, mechanical performance, and structural integrity in AAMs, to create an alternative and more “user-friendly” dehydration method. For this purpose, several mixtures based on secondary raw (slag, fly ash, glass wool, and rock wool) and non-waste (metakaolin) materials were activated with a commercial Na-silicate solution in ratios that promoted or prevented efflorescence. Characterisation techniques, including Fourier-transform infrared spectroscopy and X-ray diffraction, showed that microwave dehydration effectively removed water without altering crystallinity, while mercury intrusion porosimetry and compressive strength tests confirmed increased porosity. In addition to being an efficient, time-saving, and solvent-free manner of stopping the reactions in AAMs, microwave irradiation emerged as an innovative, chemical-free method for evaluating curing finalisation and engineering foams in a stage when all other existing methods fail. However, the artificially provoked efflorescence in aged dehydrated AAMs connected the slipperiness of AAM with the instant extraction of Na, which raised the need for further research into alternative alkali replacements to evaluate the practical use of AAM. Keywords: materials chemistry, alkali-activated materials, geopolymers, slag, fly ash, rock wool, glass wool, metakaolin, microwave irradiation, dehydration, stopping chemical reactions, efflorescence Published in DiRROS: 23.12.2024; Views: 48; Downloads: 19 Full text (11,10 MB) This document has many files! More... This document is also a collection of 1 document! |
9. Investigating the synergistic impact of freeze-thaw cycles and deicing salts on the properties of cementitious composites incorporating natural fibers and fly ashIldikó Merta, Vesna Zalar Serjun, Alenka Mauko Pranjić, Aljoša Šajna, Mateja Štefančič, Bojan Poletanovic, Farshad Ameri, Ana Mladenović, 2025, original scientific article Abstract: In cold climates, concrete structures confront durability challenges due to harsh conditions. This study evaluates the effects of incorporating natural fibers, such as hemp and flax fibers (at 1 vol%), and partially replacing cement with fly ash (at 25 and 50 wt%) on the properties of cementitious composites subjected to accelerated aging under freeze-thaw cycles and deicing salts. Findings reveal that natural fibers enhance the freeze-thaw resistance, reducing deterioration (scaling) to 5-8% after 56 cycles. When mortars were subjected to accelerated freeze-thaw cycles, the compressive strength of plain mortar significantly decreased (up to 57%). However, adding natural fibers to the matrix substantially reduced its compressive strength loss. In the case of flexural strength, plain mortars experienced 33% loss, while hemp, flax, and polypropylene fiber mortars showed only 13%, 23%, and 10% losses, respectively. Furthermore, mortars experience a notable enhancement in their energy absorption capacity when reinforced with natural fibers, particularly with hemp fibers (up to 348% higher than plain mortar). Under harsh conditions, hemp and flax-reinforced mortars, with 25wt% fly ash replacement, lose the compressive strength significantly however still demonstrate an alternative to synthetic fibers in terms of flexural strength. Even with 25wt% of fly ash, mortars with natural fiber reinforcement display significantly superior energy absorption capacities compared to plain mortars (up to 48%). Keywords: cementitious composites, natural fibers, freeze-thaw cycles, mechanical properties, mass loss, fly ash Published in DiRROS: 23.12.2024; Views: 50; Downloads: 13 Full text (10,99 MB) This document has many files! More... |
10. Strategic decisions : how good does it fit the decision-making process into the strategic management process?Edvard Kolar, Matej Tušak, Petra Robnik, Roberto Biloslavo, 2024, original scientific article Abstract: The complicated dance between the decision-making (hereinafter: DM) process, which is shaped by the individual psychological constructs and internal cognitive processes, and the methodological process of strategic management (hereinafter: SMP), which can be understood as a framework that defines decision context, raises pertinent questions about their coherence. The purpose of this study is to propose an integrative model of the strategic decision-making process (hereinafter: SDM), which links the cognitive processes of decision-makers with the rigour of strategic management and identifies and mitigates potential risks at each stage of the holistic process. To design the research, we used the "model paper" approach which seeks to build a theoretical framework that predicts relationships between research concepts. The developed comprehensive model connects four independent concepts, creating a holistic framework for SDM in organizations. The comprehensive model reveals a high degree of consistency between the SMP, knowable decision-making cycle and cognitive processes. Throughout the entire process, decision-makers need to be mindful of the interplay between System 1 and System 2 thinking. While System 1 thinking may provide quick insights and initiate creative thinking, it is important to complement it with the deliberate and analytical reasoning of System 2 thinking, which can be supported by a proper application of different strategic management tools and methods. Keywords: strategic management process, decision making process, integrative concept, strategic decision making, system 1 and 2 thinking Published in DiRROS: 23.12.2024; Views: 46; Downloads: 13 Full text (441,92 KB) This document has many files! More... |