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2. Er:YAG laser biofilm removal from zero-gap periodontal/peri-implant model system mimicking clinical attachment lossMarko Volk, Dominik Šavli, Katja Molan, Saša Terlep, Špela Levičnik Hoefferle, Mojca Trost, Boris Gašpirc, Matjaž Lukač, Matija Jezeršek, David Stopar, 2025, izvirni znanstveni članek Povzetek: Significance: Here, we present a photoacoustic method to remove biofilms from periodontal and peri-implant-constrained geometries. Aim: We aim to remove biofilms from narrow periodontal and peri-implant model systems with the application of Er:YAG ultrashort laser pulses. Approach: Construction of zero-gap model system from PDMS and titanium, growth of biofilms on titanium surfaces, and removal of biofilms with Er:YAG USP, 20 mJ, 15 Hz, and 10 s were performed. Results: The results suggest that geometry, the vertical position of the laser fiber tip, and the evolution of the primary cavitation bubble significantly affect cleaning effectiveness. Cleaning was higher in the wedge part of the model system. In the zero-gap part of the model system, biofilm cleaning effectiveness was highest at the position of the laser fiber tip and decreased above and below the fiber tip. The dimension of the space in which the cavitation bubble develops determines the size and dynamics of the expanded cavitation bubble and consequently the biofilm cleaning effectiveness. Conclusions: The obtained results suggest a very good biofilm removal effectiveness in difficult-to-reach narrow geometries mimicking clinical attachment loss in the periodontal/peri-implant pocket.
Ključne besede: Er:YAG laser, photoacoustic removal, biofilm, attachment loss, in vitro model
Objavljeno v DiRROS: 15.04.2026; Ogledov: 26; Prenosov: 14
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3. Tensile deformation behavior and constitutive modeling of solid-solution-treated 6061 aluminum alloyShanping Deng, Tao He, Xiangyang Du, Jiayun Zhu, 2026, izvirni znanstveni članek Ključne besede: 6061 aluminum alloy, temperature, strain rate, tensile deformation, constitutive model
Objavljeno v DiRROS: 15.04.2026; Ogledov: 37; Prenosov: 22
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4. Intracardiac electrogram analysis may allow for prediction of lesion transmurality after pulsed field ablation of atria in a porcine modelJernej Štublar, Tomaž Jarm, Lars M. Mattison, Bryan D. Martin, Megan M. Schmidt, Matevž Jan, Atul Verma, Paul A. Iaizzo, Daniel C. Sigg, Damijan Miklavčič, 2025, izvirni znanstveni članek Povzetek: Background Pulsed field ablation (PFA) is a novel cardiac ablation modality with an increasing clinical acceptance in treatment of atrial fibrillation due to its clinical efficacy and excellent safety profile. However, intraprocedural guidance for PFA to ensure durable pulmonary vein isolation (PVI) is lacking. Objective We quantified changes in intracardiac electrograms (iEGMs) following PFA and radiofrequency ablation (RFA) and investigated their applicability for prediction of lesion transmurality. Methods We induced 38 atrial lesions using PFA or RFA in 5 swine and monitored iEGMs continuously for up to 30 minutes postablation. The most characteristic changes in iEGMs were quantified after the decomposition using discrete wavelet transform, which allowed us to analyze the effects in separate frequency bandwidths. Results After the ablation, we observed a reduction of bipolar iEGM amplitude (for PFA and RFA) and an increase in unipolar iEGM amplitude (predominantly for PFA). These changes were due to 2 mechanisms with different frequency content. The low-frequency content of unipolar iEGMs (1–16 Hz) further enabled us to discriminate between transmural and nontransmural lesions in the case of PFA. The rate of reduction of initially increased current-of-injury effect reflected in the low-frequency content of unipolar iEGMs within the first few minutes postablation was significantly higher and more pronounced for nontransmural lesions. Conclusion This study shows that unipolar iEGMs can be used to differentiate between transmural and nontransmural atrial lesions within minutes after PFA in a porcine model, with implications for development of intraprocedural guidance of PFA procedures.
Ključne besede: pulsed field ablation, atria porcine model, intracardiac electrograms, bipolar vs unipolar iEGM, frequency analysis, discrete wavelet transform, current of injury, lesion transmurality
Objavljeno v DiRROS: 14.04.2026; Ogledov: 59; Prenosov: 38
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6. Verjetnostna napoved sanitarnega poseka smreke zaradi podlubnikov v Sloveniji v 2026Nikica Ogris, Maarten De Groot, 2026, drugi znanstveni članki Povzetek: Naredili smo verjetnostno napoved sanitarnega poseka navadne smreke zaradi podlubnikov v 2026 v Sloveniji. Napoved smo naredili s pomočjo prostorskega modela, ki je bil razvit z logistično regresijo in ima ločljivost 1 km × 1 km. Napoved modela temelji na podatkih iz lanskega leta. Sanitarni posek smreke zaradi podlubnikov se bo v letu 2026 verjetno zgodil v 43,6 % modelskih celic s smreko. Med najbolj ogroženimi so naslednja gozdnogospodarska območja: Slovenj Gradec, Nazarje, Kranj, Bled in Kočevje.
Ključne besede: navadna smreka, Picea abies, sanitarni posek, napoved, prognoza, ogroženost, model, smrekovi podlubniki, Ips typographus
Objavljeno v DiRROS: 01.04.2026; Ogledov: 161; Prenosov: 80
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7. Phenological observations and potential future shifts in the onset of the selected phenophases of representative spring plant species in Slovenia (Corylus avellana, Taraxacum officinale, and Syringa vulgaris)Gal Oblišar, Marko Puškarić, Urša Vilhar, 2025, zaključena znanstvena zbirka raziskovalnih podatkov Povzetek: To assess the changes in the spring phenology in the future with particular emphasison the elevation dependence of phenophase onset, a climate-driven phenological model was developed based on the spring indices methodology. Our study investigates both current and projected changes in the timing of flowering onset for common hazel (Corylus avellana), dandelion (Taraxacum officinale), and common lilac (Syringa vulgaris). We compiled comprehensive climate data and phenological records from 46 phenological stations of the National Phenological Network of the Slovenian Environment Agency for the period 1971–2020.We used climate projection data for the 21st century under two climate scenarios to evaluate potential future shifts in the onset of the selected phenophases. Specifically, we examined whether the agreement between model predictions and observed records varies with elevation during the reference period (1981–2010) and whether this relationship changes across three future climate periods till 2100.
Ključne besede: plant phenology, phenological model, elevation dependence, climate change
Objavljeno v DiRROS: 30.03.2026; Ogledov: 129; Prenosov: 71
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8. Assessment of the potential shifts in the phenological development of representative spring plant species in Slovenia until the end of the 21st century using a model-based approachGal Oblišar, Gregor Gregorič, Andreja Sušnik, Marko Puškarić, Urša Vilhar, 2026, izvirni znanstveni članek Povzetek: To assess the changes in the spring phenology in the future with particular emphasis on the elevation dependence of phenophase onset, a climate-driven phenological model was developed based on the spring indices methodology. Our study investigates both current and projected changes in the timing of flowering onset for common hazel (Corylus avellana), dandelion (Taraxacum officinale), and common lilac (Syringa vulgaris). We compiled comprehensive climate data and phenological records from 46 phenological stations of the National Phenological Network of the Slovenian Environment Agency for the period 1971–2020. In addition, we used climate projection data for the 21st century under two climate scenarios to evaluate potential future shifts in the onset of the selected phenophases. Specifically, we examined whether the agreement between model predictions and observed records varies with elevation during the reference period (1981–2010) and whether this relationship changes across three future climate periods: 2011–2040, 2041–2070, and 2071–2100. Model results indicate that spring phenophases are expected to occur earlier in Slovenia by the end of the 21st century, consistent with the projected increase in air temperatures. Moreover, the advancement in spring phenology will be more pronounced at higher elevations.
Ključne besede: plant phenology, phenological model, elevation dependence, climate change
Objavljeno v DiRROS: 30.03.2026; Ogledov: 122; Prenosov: 78
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9. Geomorphometry of Slovenia’s mountainous surfaceDrago Perko, 2026, samostojni znanstveni sestavek ali poglavje v monografski publikaciji Povzetek: Geomorphometry is the science of measuring land surfaces. The basic geomorphometric indicators include surface height, slope, and aspect. Their values were calculated for all of Slovenia and separately for its mountainous and non-mountainous surface, using a 5-m digital elevation model. Slovenia’s average surface height is 556.4 m, its average surface slope is 16.5°, and its average surface aspect measured from the south (0°) to the north (180°) is 84.8°. The average height of its non-mountainous surface is 320.0 m and that of its mountainous surface is 735.5 m, the average slope of its non-mountainous and mountainous surface is 9.5° and 21.8°, respectively, and the average aspect of its non-mountainous and mountainous surface is 81.2° and 87.5°, respectively. Slovenia’s lowest point is at 0 m on the coast of the Gulf of Trieste and the lowest point of its mountainous surface is at 54 m at the bottom of the Soča Valley north of Nova Gorica. The highest point of Slovenia and its mountainous surface is at 2,864 m at the top of Mount Triglav. Geomorphometric indicators help design landform typologies. Slovenian geographers have produced five so far: the first in 1935 and the last in 2019. The one created in 1992 is the only typology with a distinct geomorphometric character and the first computer-designed one. It divides Slovenia into 195 geomorphometric units and seven geomorphometric types. Among all Slovenian regions, Haloze has the roughest surface and the Mura Plain has the least rough surface, and among the mountainous regions, the roughest surface is characteristic of the Idrija Hills and the least rough surface can be found in the Dry Carniola and Dobrepolje region.
Ključne besede: digital elevation model, height, slope, aspect, geomorphometric unit, geomorphometric type, landform, landscape
Objavljeno v DiRROS: 28.03.2026; Ogledov: 197; Prenosov: 110
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10. Camusov Tujec kot izhodišče za medkulturno vzgojo in nenasilno komunikacijo pri pouku slovenščine v srednjih šolahMaša Rolih, Diana Košir, Vesna Mikolič, 2026, samostojni znanstveni sestavek ali poglavje v monografski publikaciji Povzetek: Poglavje predstavlja medkulturno obravnavo Camusovega romana Tujec po učnem modelu TILKA (Mikolič, 2016). Delo odpira razpravo o konfliktih in družbenih anomalijah na osebni, medosebni in družbeni ravni (identiteta, problematični odnosi, medkulturni stiki in konflikti, stereotipi, nasilje), ki ostajajo aktualni. Raziskana je vloga književnosti pri razvoju kritičnega mišljenja dijakov in ozaveščanju o nasilni komunikaciji (npr. sovražni govor). Poglobljena jezikovna analiza besedila omogoča boljše razumevanje literarnih in kulturnih kontekstov ter spodbuja razpravo o sodobnih družbenih izzivih.
Ključne besede: medkulturna komunikacija, učni model TILKA, analiza diskurza, nenasilna komunikacija
Objavljeno v DiRROS: 26.03.2026; Ogledov: 159; Prenosov: 102
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