1471. Intelligent supportive system for people with profound intellectual and multiple disabilitiesGašper Slapničar, Mitja Luštrek, Erik Dovgan, 2025, original scientific article Abstract: People with profound intellectual and multiple disabilities (PIMD) are a vul-nerable and often marginalized group of people, commonly without the ability ofsymbolic communication. This makes expressing and recognizing their innerstate and desires challenging and requires in-depth knowledge and under-standing of each individual. Use of standard assistive technologies is thusinfeasible due to lack of personalization. This challenge is tackled by theINSENSION system—a novel intelligent decision support system leveraging state-of-the-art noninvasive audio-visual sensor technologies together with machinelearning algorithms and expert knowledge, to detect and interpret behaviors andcommunications (nonverbal signals—NVSs) of people with PIMD in challengingreal-world scenarios. The detection of NVSs supports caregivers and allows thepeople with PIMD a form of communication through a communicator application.Furthermore, the system enables them to control and adjust their environmentthrough a smart room and multimedia player. According to quantitative andqualitative evaluation, good recognition accuracy is achieved, and the systemempowers people with PIMD and increases their quality of life.RESEARCH ARTICLEwww.advintellsyst.comAdv. Intell. Syst. 2025, 2400925 2400925 (1 of 19) © 2025 The Author(s). Advanced Intelligent Systems published by Wiley-VCH GmbH
Keywords: INSENSION system, people with profound intellectual and multiple disabilities
Published in DiRROS: 29.07.2025; Views: 379; Downloads: 242
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1474. Podatkovna baza za določanje izvora rimskodobnih kamnitih izdelkov z IžanskegaRok Brajkovič, Petra Žvab Rožič, Luka Gale, 2025, complete scientific database of research data Abstract: Rimskodobni kamniti izdelki najdeni na Ižanskem so bili pretežno izdelani iz mikritnega in peloidnega apnenca. Izvor teh izdelkov je bil do sedaj le ohlapno definiran, zlasti zaradi pomanjkanja podrobnih opisov mikrofaciesov, študije mikrofosilov in manjkajočih geokemičnih analiz iz do sedaj prepoznanih ali predlaganih območij rimskih kamnolomov. Podatkovna baza zapolnjuje to vrzel in nudi podroben vpogled v litološko in geokemično sestavo apnenca, ki izdanja pri Podutiku, Stajah, Igu, v Podpeči, Jezeru pri Podpeči, na hribu Sv. Ana in pri Ledenici v bližini Planince.
Published in DiRROS: 29.07.2025; Views: 371; Downloads: 236
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1475. Platonic configurations of points and linesJurij Kovič, Aleksander Simonič, 2026, original scientific article Abstract: We present some methods for constructing connected spatial geometric configurations $(p_q, n_k)$ of points and lines, preserved by the same isometries of Euclidean space $E^3$ as the predetermined Platonic solid. In this paper, we are mainly interested in configurations $(n_3)$, $(n_4)$, and $(n_5)$, but also in unbalanced configurations $(p_3, n_4)$, $(p_3, n_5)$, and $(p_4, n_5)$.
Keywords: configuration of points and lines, symmetry groups, Platonic solids, centrally symmetric solid, projection from a point
Published in DiRROS: 28.07.2025; Views: 360; Downloads: 174
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1476. Analysis of olive tree flowering behavior based on thermal requirements : a case study from the Northern Mediterranean regionMaja Podgornik, Jakob Fantinič, Tjaša Pogačar, Vesna Zupanc, 2024, original scientific article Abstract: In recent years, early olive fruit drop has been observed in the northern Mediterranean regions, causing significant economic losses, although the exact cause remains unknown. Recent studies have identified several possible causes; however, our understanding of how olive trees respond to these environmental stresses remains limited. This study includes an analysis of selected meteorological and flowering data for Olea europaea L. “Istrska belica” to evaluate the use of a chilling and forcing model for a better understanding of flowering time dynamics under a changing climate. The flowering process is influenced by high diurnal temperature ranges (DTRs) during the pre-flowering period, resulting in earlier flowering. Despite annual fluctuations due to various climatic factors, an increase in DTRs has been observed in recent decades, although the mechanisms by which olive trees respond to high DTRs remain unclear. The chilling requirements are still well met in the region (1500 ± 250 chilling units), although their total has declined over the years. According to the Chilling Hours Model, chilling units—referred to as chilling hours—represent the number of hours with temperatures between 0 and 7.2 °C, accumulated throughout the winter season. Growing degree hours (GDHs) are strongly correlated with the onset of flowering. These results suggest that global warming is already affecting the synchrony between olive tree phenology and environmental conditions in the northern Mediterranean and may be one of the reason for the green drop.
Keywords: olive, Olea europaea L, phenology, chilling hours, diurnal temperature range, climate change
Published in DiRROS: 25.07.2025; Views: 466; Downloads: 375
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1477. Explicit microrelief-controlled decoupling of initial aerobic decay and leaching (in hummocks) and anaerobic decay (in hollows) in surface layers of a Sphagnum-dominated peatlandMarta Pérez-Rodríguez, A. Alten, Miloš Miler, J. Kaal, 2025, original scientific article Abstract: Understanding decay processes in peat deposits is fundamental for predicting their role as sources or sinks of atmospheric carbon in a changing environment. It is known that the distribution of microhabitats –hummock, lawn and hollow– within peatlands affects organic matter quality and degradation, but microtopography-dependent carbon dynamics are poorly understood on the molecular level. We studied early decomposition across microtopography levels through analyses of superficial moss cores from a Sphagnum-dominated ombrotrophic peatland in Central Germany, and a 400-day incubation experiment, using analytical pyrolysis. Interpretations were aided by analysis of living vegetation and a deep peat core as reference. Stable and labile pools of polysaccharides dominated the pyrolyzates and played a crucial role in decay dynamics. Two distinct degradation processes emerged: 1) anaerobic decay, characterized by loss of polysaccharides and selective preservation of lignin and aliphatic OM; and 2) leaching of labile phenolic compounds (including sphagnum acid) and free carbohydrates with concomitant initial aerobic degradation and selective preservation of structural polysaccharides. The relative importance of these initial decay processes is spatially dependent; anaerobic decay was detectable in only some of the more evolved hollow layers, while aerobic degradation and leaching dominated in hummocks. Sphagnum acid’s molecular markers appeared useful tracers of early decay as it probably has a leaching-sensitive component in hyaline cells (corroborated by SEM micrographs) that is lost rapidly from hummocks, but not from hollows. Hence, the occurrence of sphagnum acid in peat cores is influenced by microrelief position during peat accretion. This study highlights how microhabitat variations within peatlands influence decay mechanisms on the molecular level.
Keywords: Py-GC-MS, THM-GC-MS, peat, organic matter, polysaccharides, Sphagnum acid
Published in DiRROS: 25.07.2025; Views: 412; Downloads: 167
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1478. Injective colorings of Sierpiński-like graphs and Kneser graphsBoštjan Brešar, Sandi Klavžar, Babak Samadi, Ismael G. Yero, 2025, original scientific article Abstract: Two relationships between the injective chromatic number and, respectively, chromatic number and chromatic index, are proved. They are applied to determine the injective chromatic number of Sierpiński graphs and to give a short proof that Sierpiński graphs are Class 1. Sierpiński-like graphs are also considered, including generalized Sierpiński graphs over cycles and rooted products. It is proved that the injective chromatic number of a rooted product of two graphs lies in a set of six possible values. Sierpiński graphs and Kneser graphs $K(n,r)$ are considered with respect of being perfect injectively colorable, where a graph is perfect injectively colorable if it has an injective coloring in which every color class forms an open packing of largest cardinality. In particular, all Sierpiński graphs and Kneser graphs $K(n,r)$ with $n\ge 3r-1$, are perfect injectively colorable, while $K(7,3)$ is not.
Keywords: injective coloring, injective chromatic number, perfect injectively colorable graph, Sierpiński graphs, Kneser graphs, rooted product graph
Published in DiRROS: 25.07.2025; Views: 369; Downloads: 222
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1480. $k$-domination invariants on Kneser graphsBoštjan Brešar, Tanja Dravec, María Gracia Cornet, Michael A. Henning, 2025, original scientific article Abstract: In this follow-up to work of M.G. Cornet and P. Torres from 2023, where the $k$-tuple domination number and the $2$-packing number in Kneser graphs $K(n,r)$ were studied, we are concerned with two variations, the $k$-domination number, $\gamma_k(K(n,r))$, and the $k$-tuple total domination number, $\gamma_{t\times k}(K(n,r))$, of $K(n,r)$. For both invariants we prove monotonicity results by showing that $\gamma_k(K(n,r))\ge \gamma_k(K(n+1,r))$ holds for any $n\ge 2(k+r)$, and $\gamma_{t\times k}(K(n,r))\ge \gamma_{t\times k}(K(n+1,r))$ holds for any $n\ge 2r+1$. We prove that $\gamma_k(K(n,r))= \gamma_{t\times k}(K(n,r))= k+r$ when $n\geq r(k+r)$, and that in this case every $\gamma_k$-set and $\gamma_{t\times k}$-set is a clique, while $\gamma_k(r(k+r)-1,r)=\gamma_{t\times k}(r(k+r)-1,r)=k+r+1$, for any $k\ge 2$. Concerning the $2$-packing number, $\rho_2(K(n,r))$, of $K(n,r)$, we prove the exact values of $\rho_2(K(3r-3,r))$ when $r\ge 10$, and give sufficient conditions for $\rho_2(K(n,r))$ to be equal to some small values by imposing bounds on $r$ with respect to $n$. We also prove a version of monotonicity for the $2$-packing number of Kneser graphs.
Keywords: Kneser graphs, k-domination, k-tuple total domination, 2-packing
Published in DiRROS: 24.07.2025; Views: 412; Downloads: 232
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