31. Cene gozdnih lesnih sortimentov iz zasebnih gozdov na slovenskem trgu v maju 2023Katarina Flajšman, Špela Ščap, 2023, professional article Keywords: gozdarstvo, gozdovi, gozdni lesni sortimenti, odkupne cene, okrogli les, les za kurjavo, zasebni gozdovi
Published in DiRROS: 18.08.2023; Views: 373; Downloads: 112
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32. The Incorporation of steel slag into belite-sulfoaluminate cement clinkersLea Žibret, Katarina Šter, Maruša Mrak, Mojca Loncnar, Sabina Dolenec, 2021, original scientific article Abstract: The potential use of steel slag from treated steel slag in belite-sulfoaluminate cements was investigated in this study. Cement clinkers with two phase compositions were synthesized, allowing the incorporation of different amounts of steel slag. The phase composition and microstructure of cement clinkers at three different sintering temperatures were studied by X-ray powder diffraction and the Rietveld method, as well as scanning electron microscopy with energy dispersive spectrometry. The results showed that the targeted phase composition of clinkers was achieved at a sintering temperature of 1250%C. However, a higher amount of perovskite instead of ferrite was detected in the clinker with a higher content of Ti-bearing bauxite. Apart from the main phases, such asbelite, calcium sulfoaluminate, and ferrite, several minor phases were identified, including mayenite, perovskite, periclase, and alkali sulfates. In both clinker mixtures, a higher content of MgO in the steelslags resulted in the formation of periclase. Furthermore, the hydration kinetics and compressive strength at 7 and 28 days were studied in two cements prepared from clinkers sintered at 1250%C. As evidenced by the results of isothermal calorimetry, the hydration kinetics were also influenced by the minor clinker phases. Cement with a higher content of calcium sulfoaluminate phase developed a higher compressive strength.
Keywords: cements, BCSA, steel slag, secundary row materials, microstructure, clinker phase
Published in DiRROS: 01.08.2023; Views: 253; Downloads: 122
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33. Aktualne cene gozdarskih storitev v Sloveniji - marec 2023Katarina Flajšman, Matevž Triplat, 2023, professional article Keywords: gozdarstvo, gozdovi, gozdarske storitve, cene, sečnja, spravilo lesa, prevoz lesa
Published in DiRROS: 27.07.2023; Views: 512; Downloads: 123
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34. Mednarodni dan gozdov : izsledki našega delaŠpela Ščap, Jaša Saražin, Matevž Triplat, Peter Prislan, Katarina Flajšman, Urban Žitko, Amina Gačo, Darja Stare, Marjan Dolenšek, 2023, professional article Keywords: gozdarstvo, gozdovi, les, dan gozdov, pregled dela
Published in DiRROS: 27.07.2023; Views: 395; Downloads: 103
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35. Cene gozdnih lesnih sortimentov iz zasebnih gozdov na slovenskem trgu v februarju 2023Katarina Flajšman, Špela Ščap, 2023, professional article Keywords: gozdarstvo, gozdovi, gozdni lesni sortimenti, odkupne cene, okrogli les, les za kurjavo, zasebni gozdovi
Published in DiRROS: 27.07.2023; Views: 344; Downloads: 127
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36. Pregled nad cenami gozdnih lesnih sortimentov v letu 2022Špela Ščap, Katarina Flajšman, 2023, professional article Keywords: gozdarstvo, gozdovi, gozdni lesni sortimenti, odkupne cene, okrogli les, industrijski les, les za kurjavo
Published in DiRROS: 27.07.2023; Views: 330; Downloads: 108
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37. The use of tensiomyography in older adults : a systematic reviewKatarina Puš, Armin Paravlić, Boštjan Šimunič, 2023, review article Abstract: Introduction: Aging of skeletal muscles results in a cascade of events negatively affecting muscle mass, strength, and function, leading to reduced mobility, increased risk of falls, disability, and loss of independence. To date, different methods are used to assess muscle mechanical function, tensiomyography (TMG) being one of them. The aim of this review was twofold: to summarize the evidence-based usefulness of tensiomyography in older adults and to establish reference values for the main tensiomyography parameters in older adults. Methods: The PubMed, Web of Science, SPORTDiscus, and tensiomyography databases were searched from inception until 25 December 2022. Studies investigating older adults (aged 60+ years) that reported tensiomyographyderived parameters such as contraction time (Tc) and/or maximal displacement (Dm) were included. Methodological quality was assessed using the Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies. Results: In total, eight studies satisfied the inclusion criteria. Tensiomyography has been used on different groups of older adults, including asymptomatic, master athletes, patients with peripheral arterial disease, and patients with end-stage knee osteoarthritis with a mean age of 71.5 ± 5.38 (55.7% male subjects). The most evaluated were leg muscles such as vastus lateralis (VL), gastrocnemius medialis (GM), and biceps femoris (BF). The present review demonstrates that tensiomyography is used to assess neuromuscular function in asymptomatic and diseased older adults. When compared to asymptomatic individuals, power master athletes, knee osteoarthritis patients, and patients diagnosed with peripheral arterial disease have the shortest Tc in BF, VL, and GM muscles, respectively. On the other hand, endurance master athletes showed the longest Tc in all three evaluated muscles. Less mobile, nursing-home residents showed higher Dm in VL and BF, while lower Dm in GM than the asymptomatic group. The knee osteoarthritis group showed the largest Dm in BF and VL while having the smallest Dm in GM. Conclusion: Tensiomyography can serve as a valuable tool for assessing neuromuscular function in older adults. The method is sensitive to muscle composition, architecture, and (pre) atrophic changes of the skeletal muscles and might be responsive to muscle quality changes in aging and diseased populations.
Keywords: sport, muscle function, elderly, neuromuscular function, normative values, TMG
Published in DiRROS: 27.06.2023; Views: 330; Downloads: 211
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38. Radiosenzibilizacija tumorjev z elektroprenosom plazmida za dve antiangiogeni tarčiMonika Savarin, Katarina Žnidar, Gregor Serša, Tilen Komel, Maja Čemažar, Urška Kamenšek, 2023, published scientific conference contribution abstract Keywords: miši, elektroprenos genov, gensko zdravljenje
Published in DiRROS: 19.06.2023; Views: 331; Downloads: 131
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39. Dinamika dolžine telomerov v levkocitih po zdravljenju z obsevanjem pri raku dojkTanja Marinko, Sara Redenšek Trampuž, Ana Trstenjak, Vita Dolžan, Katarina Trebušak Podkrajšek, Katja Goričar, 2023, published scientific conference contribution Abstract: Obsevanje je del standardnega zdravljenja bolnic z rakom dojk. Odgovor na zdravljenje z obsevanjem je pri vsakem posamezniku drugačen in je odvisen tudi od genetskih dejavnikov. Eden od novejših genetskih označevalcev odgovora na obsevanje je dolžina telomerov. Telomeri ščitijo kromosome pred krajšanjem in vzdržujejo genomsko stabilnost. Rezultati naše raziskave kažejo, da se dinamika spreminjanja dolžine telomerov takoj po zdravljenju z obsevanjem in v šestih mesecih po obsevanju pri bolnicah z neinvazivnim rakom dojk spreminja in bi lahko služila kot biološki označevalec odgovora na obsevanje. Molekularni mehanizmi, povezani s tem procesom, ostajajo zaenkrat večinoma neraziskani.
Keywords: rak dojk, obsevanje, onkološko zdravljenje
Published in DiRROS: 16.06.2023; Views: 345; Downloads: 135
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40. Diagnostic accuracy of tensiomyography parameters for monitoring peripheral neuromuscular fatigueMiloš Kalc, Katarina Puš, Armin Paravlić, Jure Urbanc, Boštjan Šimunič, 2023, original scientific article Abstract: The diagnostic accuracy of tensiomyography (TMG) parameters compared to the gold standard in neuromuscular fatigue evaluation using voluntary and electrically induced muscle activation is unclear. This study aimed to investigate the diagnostic accuracy of TMG parameters to detect individual changes after interventions that were designed to induce central or peripheral fatigue. Nineteen males (age: 32.2 ± 9.3 years) performed two interventions, consisting of maintaining 25% of maximal voluntary contraction (MViC25%) and a 30 s all-out cycling test (Wingate), respectively. TMG parameters, maximum voluntary contraction (PtMViC), voluntary activation (VA%) and electrically elicited double twitches (Dtw) were assessed on the knee extensors before (PRE), one minute (POST) and seven minutes after (POST7) the intervention. The diagnostic accuracy (AUC) of TMG parameters were evaluated in comparison to two criteria measures (PtMViC and Dtw). RM ANOVA revealed a significant interaction between the effects of intervention and time on VA% (p = 0.001) and Dtw (p < 0.001) but not for PtMViC (p = 0.420). AUC showed that TMG parameters had a good ability in detecting muscular fatigue assessed by Dtw but not by PtMViC. The results of the current study suggest that TMG parameters can be used to monitor peripheral neuromuscular fatigue.
Keywords: tensiomyography, vastus lateralis, MVC, twitch
Published in DiRROS: 13.06.2023; Views: 344; Downloads: 190
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