181. Materiality, religion and the digital : a theoretical exploration of material religion in immersive platformsVictoria Dos Santos, Eduardo Rodrigues da Cruz, 2024, original scientific article Abstract: This article proposes that the material dimension of religion can be articulated and experienced online. Considering that religion is an embodied phenomenon which relies on material elements, this paper will particularly focus on religious practices taking place in immersive virtual platforms in order to comprehend how the material dimension is manifested by users in their everyday life. Through a the-oretical analysis, we propose that 3D social virtual worlds efficiently enable users to experience key material aspects such as embodiment and space, due to their high levels of immersivity, interactivity, and agency, by embodying avatars in customi-zable spaces. Meyer’s theory of mediation, Hoover and Echchaibi’s Third Spaces of Digital Religion, and Campbell’s theory of Religious–Social Shaping of Digital Technology (RSST) allows us to center the discussion on how religions are practi-ced and experienced by individuals and communities through various mediation practices, and how digital media acquires more affective meanings when they are involved in religious pursuits.
Keywords: digital religion, digital materiality, material religion, digital embodiment, virtual reality
Published in DiRROS: 11.02.2025; Views: 74; Downloads: 44
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182. Higher-order asynchronous effectsDanel Ahman, Matija Pretnar, 2024, original scientific article Abstract: We explore asynchronous programming with algebraic effects. We complement their conventional synchronous treatment by showing how to naturally also accommodate asynchrony within them, namely, by decoupling the execution of operation calls into signalling that an operation's implementation needs to be executed, and interrupting a running computation with the operation's result, to which the computation can react by installing interrupt handlers. We formalise these ideas in a small core calculus and demonstrate its flexibility using examples ranging from a multi-party web application, to pre-emptive multi-threading, to (cancellable) remote function calls, to a parallel variant of runners of algebraic effects. In addition, the paper is accompanied by a formalisation of the calculus's type safety proofs in Agda, and a prototype implementation in OCaml.
Keywords: algebraic effects, asynchrony, concurrency, interrupt handling, signals, promises
Published in DiRROS: 11.02.2025; Views: 82; Downloads: 46
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183. When objects go wandering - lost and found objects from the Skušek collectionHelena Motoh, 2025, original scientific article Abstract: This paper examines the phenomenon of “wandering objects” through the lens of the Skušek Collection, the largest collection of East Asian objects in Slovenia, which was brought to Ljubljana by Ivan Skušek Jr. and his Japanese wife, Tsuneko Kondō Kawase, in 1920. This collection, which traversed private ownership and eventual institutionali-sation, illustrates the dynamic mobility of artefacts. This study focuses on the movement of these objects both within and outside the family network, exploring how they were dispersed and sometimes reintegrated into the collection. By analysing specific cases, such as the three Japanese screens and other key objects, this paper identifies unique mobility patterns that differ from more common notions of dissociation and “orphaning” in the research of museum collections. The findings highlight the symbolic roles these “wander-ing objects” played in reinforcing social ties and cultural identity. This research contributes to a broader understanding of object mobility and provenance, offering a new conceptual framework for the research of private and institutional collections.
Keywords: East Asian objects, private collections, provenance research, cultural heritage, Slovenia
Published in DiRROS: 11.02.2025; Views: 86; Downloads: 62
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184. Establishing benchmark properties for 3D-printed concrete : a study of printability, strength, and durabilityAlise Sapata, Maris Šinka, Genadijs Šahmenko, Lidija Korat Bensa, Lucija Hanžič, Katarina Šter, Sandris Rucevskis, Diana Bajare, Fred P. Bosselman, 2025, original scientific article Abstract: This study investigates the fresh state and hardened state mechanical and durability properties of 3D-printed concrete. The mechanical tests focused on its anisotropic behavior in response to different load orientations. Compressive, flexural, and splitting tensile strengths were evaluated relative to the print layers orientation. Results showed that compressive strength varied significantly, achieving 85% of cast sample strength when the load was applied parallel to the print layers ([u] direction), 71% when the load was applied perpendicular to the print object’s side plane ([v] direction), while only reaching 59% when applied perpendicular to the top plane ([w] direction). Similar trends were observed for flexural strength, with average values reaching 75% of cast sample strength when the load was applied perpendicular to the print layers ([v.u] and [w.u] directions), but decreasing to 53% when the load was applied parallel to print layers ([u.w] direction), underscoring the weaknesses at interlayer interfaces. The splitting tensile strength remained relatively consistent across print orientations, reaching 90% of the cast sample strength. Durability assessment tests revealed that 3D-printed concrete exhibits reduced resistance to environmental factors, particularly at the layer interfaces where the cold joint was formed, which are prone to moisture penetration and crack formation. These findings contribute valuable insights into the mechanical and durability properties of 3D-printed concrete, emphasizing the importance of print orientation and interlayer bonding in its performance. This understanding helps guide the optimal use of 3D-printed elements in real-life applications by aligning load or exposure to environmental factors with the material’s strength and durability characteristics.
Keywords: civil engineering, 3D-printing, concrete, additive manufacturing
Published in DiRROS: 11.02.2025; Views: 134; Downloads: 82
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185. The different aspects of the housing quality of older adults : which criteria should be prioritized?Richard Sendi, Maša Filipovič Hrast, Ajda Šeme, Boštjan Kefo Kerbler, 2024, original scientific article Abstract: Various studies have identified that older adults’ assessment oftheir housing quality differs from that deemed as good quality housing by housing professionals. This has prompted the need to advance academic discourse beyond simply reporting highlevels of satisfaction in older adult’s housing surveys. This studyattempts to achieve this by using empirical data gatheredthrough a mixed quantitative and qualitative research approachconducted with older adults in Slovenia. While the quantitativesurvey revealed generally high levels of satisfaction, the qualitative face-to-face interviews revealed numerous deficiencies,irrespective of whether older adults tended to express satisfaction with their dwellings. Therefore, our findings suggest thatattributes such as ownership, period of residence, and neighborhood relations are far more important in determining housing satisfaction. Thus, we conclude that policies and programsfor modifying housing for older adults must be based ona deeper understanding of their specific needs. During thepolicy formulation process and the implementation of specifichousing improvement programs, emphasis should be placed onthe social-historical aspects related to the lifestyle of each specific older adult.
Published in DiRROS: 10.02.2025; Views: 103; Downloads: 65
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186. Ljubljana - European green capital 2016 : from strategic spatial planning to governanceKaliopa Dimitrovska Andrews, Matej Nikšič, Luka Mladenovič, Boštjan Cotič, Barbara Mušič, Boštjan Kefo Kerbler, 2024, original scientific article Abstract: Ljubljana was the first post-socialist city awarded with the title European Green Capital. The title awarded by the European Commission is given to a city that is achieving high environmental standards, is setting ambitious goals for further environmental improvement and sustainable development, and can act as a role model to inspire other cities and promote best practices to all other European cities. The article is based on a hypothesis that at the moment when Ljubljana applied for (and was awarded) the European Green Capital title, it had strong strategic spatial planning and successful territorial governance, as well as the interweaving of both. To prove the hypothesis, the timetable and characteristics of the strategic spatial planning and territorial governance in Ljubljana are presented in this article and critically evaluated. Critical evaluation and analyses are also assessed using a qualitative research method, i.e., semi-structured in-depth interviews among experts from four professional fields including spatial planning, urbanism, architecture, and management. The results confirmed the hypothesis: Ljubljana’s sustainability-oriented strategic spatial plan prepared by a variety of stakeholders, experts, and citizens, as well as the effective governance system established by the mayor, a manager by profession, were two factors that coincided at a crucial moment. This was recognized by the European Commission and Ljubljana was awarded a prestigious title. Ljubljana can therefore serve as an excellent sustainable example for other post-socialist cities in terms of strategic spatial planning and governance.
Keywords: sustainable city development, urban planning, post-socialist city, sustainable innovation
Published in DiRROS: 10.02.2025; Views: 121; Downloads: 78
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187. Quaternionic Cartan coverings and applicationsJasna Prezelj, Fabio Vlacci, 2025, original scientific article Abstract: We present the topological foundations for solvability of multiplicative Cousin problems formulated on an axially symmetric domain Ω⊂H. In particular, we provide a geometric construction of quaternionic Cartan coverings, which are generalizations of (complex) Cartan coverings as presented in Section 4 of Forstnerič and Prezelj (Math. Ann. 322(4), 633-666 (2002)). Because of the requirements of symmetry inherent to the domains of definition of quaternionic regular functions, the existence of quaternionic Cartan coverings of Ω is not a consequence of the existence of complex Cartan coverings; for the latter, there are no requirements for the symmetries with respect to the real axis. Due to the real axis’s special role, also the covering restricted to Ω∩R must have additional properties. All these required properties were achieved by starting from a particular symmetric tiling of the symmetric set Ω∩(R+iR). Finally, we apply these results to prove the vanishing of ’antisymmetric’ cohomology groups of planar symmetric domains for n≥2.
Keywords: quaternionic Cartan coverings, antisymmetric cohomology groups
Published in DiRROS: 10.02.2025; Views: 96; Downloads: 55
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189. Partial asynchrony of coniferous forest carbon sources and sinks at the intra-annual time scaleRoberto Silvestro, Maurizio Mencuccini, Franco Biondi, Jesus Julio Camarero, Alberto Arzac, Filipe Campelo, Katarina Čufar, Henri E. Cuny, Martin De Luis, Annie Deslauriers, Jožica Gričar, Peter Prislan, 2024, original scientific article Abstract: As major terrestrial carbon sinks, forests play an important role in mitigating climate change. The relationship between the seasonal uptake of carbon and its allocation to woody biomass remains poorly understood, leaving a significant gap in our capacity to predict carbon sequestration by forests. Here, we compare the intra-annual dynamics of carbon fluxes and wood formation across the Northern hemisphere, from carbon assimilation and the formation of non-structural carbon compounds to their incorporation in woody tissues. We show temporally coupled seasonal peaks of carbon assimilation (GPP) and wood cell differentiation, while the two processes are substantially decoupled during off-peak periods. Peaks of cambial activity occur substantially earlier compared to GPP, suggesting the buffer role of non-structural carbohydrates between the processes of carbon assimilation and allocation to wood. Our findings suggest that high-resolution seasonal data of ecosystem carbon fluxes, wood formation and the associated physiological processes may reduce uncertainties in carbon source-sink relationships at different spatial scales, from stand to ecosystem levels.
Keywords: carbon sinks, forests, conifers, intra-annual resolution
Published in DiRROS: 10.02.2025; Views: 111; Downloads: 62
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190. Molecular analysis of scats revealed diet and prey choice of grey wolves and Eurasian lynx in the contact zone between the Dinaric Mountains and the AlpsElena Bužan, Hubert Potočnik, Boštjan Pokorny, Sandra Potušek, Laura Iacolina, Urška Gerič, Felicita Urzi, Ivan Kos, 2024, original scientific article Abstract: A comprehensive understanding of the dietary habits of carnivores is essential to get ecological insights into their role in the ecosystem, potential competition with other carnivorous species, and their effect on prey populations. Genetic analysis of non-invasive samples, such as scats, can supplement behavioural or microscopic diet investigations. The objective of this study was to employ DNA metabarcoding to accurately determine the prey species in grey wolf (Canis lupus) and Eurasian lynx (Lynx lynx) scat samples collected in the Julian Alps and the Dinaric Mountains, Slovenia. The primary prey of wolves were red deer (Cervus elaphus) (detected in 96% scat samples), European roe deer (Capreolus capreolus) (68%), and wild boar (Sus scrofa) (45%). A smaller portion of their diet consisted of mesocarnivores, small mammals, and domestic animals. In contrast, the lynx diet mostly consisted of European roe deer (82%) and red deer (64%). However, small mammals and domestic animals were also present in lynx diet, albeit to a lesser extent. Our findings indicate that the dietary habits of wolves and lynx are influenced by geographical location. Snapshot dietary analyses using metabarcoding are valuable for comprehending the behaviour and ecology of predators, and for devising conservation measures aimed at sustainable management of both their natural habitats and prey populations. However, to gain a more detailed understanding of wolf and lynx dietary habits and ecological impact, it would be essential to conduct long-term genetic monitoring of their diet.
Keywords: dietary analysis, non-invasice samples, scats, metabarcoding, Canis lupus, Lynx lynx
Published in DiRROS: 10.02.2025; Views: 110; Downloads: 66
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