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1992. Izobraževanje o urejanju hudourniških območij v gozdnem prostoruTina Simončič, Matjaž Guček, Aleš Poljanec, Milan Kobal, Jože Papež, Urša Vilhar, Erika Kozamernik, Jaša Saražin, 2025, professional article Keywords: urejanje hudournikov, gozdovi, hudourniki
Published in DiRROS: 03.06.2025; Views: 615; Downloads: 233
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1993. Sočasna sečnja in helikoptersko spravilo lesa z Ljubljanskega Grajskega gričaMatevž Triplat, Jaša Saražin, Peter Smolnikar, Gašper Ogrin, Nike Krajnc, 2025, professional article Abstract: Helikoptersko spravilo lesa je eno izmed najsodobnejših in tehnološko ter organizacijsko zahtevnih metod spravila lesa, ki je primerno predvsem za težko dostopna območja, kjer druge tehnologije niso mogoče ali pa bi preveč vplivale na okolje. V začetku januarja 2025 sta v mestnem jedru Ljubljane potekala sočasna sečnja in helikoptersko spravilo. Projekt je terjal natančno organizacijo in usklajevanje različnih strokovnjakov, vključno z arboristi, gozdarskimi strokovnjaki, sekači, pilotom in varnostnimi službami. Pred prihodom helikopterja je bilo treba podrobno oceniti teren, označiti drevesa za posek ter zagotoviti ustrezne varovalne ukrepe za varnost vseh udeleženih pa tudi občanov in obiskovalcev Ljubljane. Sam proces spravila je temeljil na visoki stopnji natančnosti in usklajenosti med sekači in pilotom helikopterja, saj je bilo ključno, da je bil vsak dvig tovora izveden kontrolirano in na varen način. Prednosti tovrstnega spravila so zmanjšan vpliv na tla in sestoj, manjša erozija ter možnost spravila lesa z območij, kjer tradicionalne metode niso mogoče. Uporaba helikopterjev v gozdarstvu sicer ni novost, vendar se njena uporaba v Sloveniji šele začenja. Projekt je bil pomembna preizkušnja za prihodnje možnosti uvajanja tovrstnih metod v Sloveniji. Pridobljene izkušnje so dragocene za nadaljnji razvoj gozdarskih tehnologij. Analiza prispeva k boljšemu razumevanju dejavnikov, ki vplivajo na učinkovitost in varnost takšnega načina spravila.
Keywords: helikopter, spravilo lesa, organizacija, varovalni gozd, zaščitna funkcija
Published in DiRROS: 03.06.2025; Views: 514; Downloads: 215
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1994. Vpliv mesta shranjevanja na lastnosti lesnega oglja in briketov lesnega oglja za žarAnže Jereb, Domen Frece, Marcel Egartner, Lara Plevnik, Patricija Oražem, Tomaž Rihter, 2025, original scientific article Abstract: V raziskavi smo proučevali vpliv zračne vlage na kakovost in kurilno vrednost lesnega oglja ter briketov lesnega oglja za žar. Uporabili smo slovensko lesno oglje s kmetije Frece in brikete lesnega oglja znamke Forest Premium. Lesno oglje in brikete lesnega oglja smo razdelili v štiri vzorce, ki smo jih hranili na štirih različnih lokacijah: v drvarnici, zunaj pod balkonom bivalnega objekta, v izolirani neogrevani garaži in v kurilnici. Vzorce smo vsak dan tehtali, poleg tega smo na lokacijah shranjevanja merili temperaturo in zračno vlago. Po 14-dnevnem obdobju meritev smo vzorce vneli, da smo pridobili podatke o temperaturi zgorevanja in času gorenja, del vzorca pa smo porabili za analizo vsebnosti vode in kurilne vrednosti. Najvišjo vsebnost vode sta imela vzorca lesnega oglja in briketov lesnega oglja, ki sta bila izpostavljena najvišji zračni vlagi, najnižjo vsebnost vode pa vzorca, ki sta bila izpostavljena najnižji zračni vlagi. Vzorci z višjo vsebnostjo vode so imeli tudi manjšo kurilno vrednost in temperaturo zgorevanja. Briketi lesnega oglja so izkazali večjo higroskopsko sposobnost, ki je verjetno vplivala na sposobnost za vžig (vzorci izpostavljeni višji zračni vlagi se niso vneli). Lesno oglje je kljub enakim razmeram shranjevanja ohranjalo večjo kurilno vrednost v primerjavi z briketi lesnega oglja. Rezultati raziskave poudarjajo pomembnost pravilnega shranjevanja lesnega oglja in briketov lesnega oglja, kakršno je suho in toplo okolje. Tako dosežemo optimalno energetsko učinkovitost in trajnostno rabo teh energetskih virov.
Keywords: trda goriva za žar, lesno oglje, briketi lesnega oglja, kakovost, shranjevanje
Published in DiRROS: 03.06.2025; Views: 491; Downloads: 150
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1995. Gozdni rastiščni tipi Slovenije : primerjalni pregled ekoloških, vegetacijskih, rastiščnih, sestojnih in upravljavskih značilnostiAndrej Rozman, Aleš Poljanec, Valerija Babij, Matija Klopčič, Igor Dakskobler, Lado Kutnar, Andrej Bončina, 2025, original scientific article Abstract: Prispevek predstavlja celovit pregled gozdnih rastiščnih tipov (GRT) Slovenije, ki vključuje njihovo ekološko, vegetacijsko, rastiščno, sestojno in upravljavsko analizo. Na podlagi obsežnih prostorskih, fitocenoloških in gozdnogospodarskih podatkov je prikazana razširjenost 78 GRT v Sloveniji ter njihova pojavnost po fitogeografskih območjih, nadmorskih višinah in ekoloških gradientih. Prikazana je vrstna pestrost, rastiščne značilnosti, klimatske razmere, produktivnost rastišč in ogroženost zaradi vremenskih in biotskih motenj. Na osnovi analiz so izpostavljene tudi upravljavske smernice in tveganja za posamezne GRT. Prispevek služi kot metodološki okvir za nadaljnje podrobne predstavitve posameznih GRT, ki bodo objavljene v naslednjih številkah Gozdarskega vestnika.
Keywords: gozdni rastiščni tipi, ekološke značilnosti, vegetacija, vrstna pestrost, sonaravno gospodarjenje z gozdovi
Published in DiRROS: 03.06.2025; Views: 669; Downloads: 277
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1998. Controlled synthesis of nickel phosphides in hollow N, P co-doped carbon : In situ transition to (oxy)hydroxide phases during oxygen evolution reactionDavid Rios-Ruiz, Pablo Arevalo-Cid, Jesus Cebollada, Verónica Celorrio, Milan Čeh, Sandra Drev, Maria V. Martinez-Huerta, 2025, original scientific article Abstract: Developing sustainable and efficient electrocatalysts for the oxygen evolution reaction (OER) is crucial for advancing energy storage technologies. This study explored the dual role of phosphorus as a dopant in carbon matrices and a key component in nickel phosphides (Ni2P and Ni12P5), synthesized using dopamine (PDA) and ammonium phosphate as eco-friendly precursors. The phase formation of nickel phosphides was found to be highly dependent on the P/PDA ratio (0.15, 0.3, 0.6, and 0.9), allowing for the selective synthesis of Ni2P or Ni12P5. Operando Raman spectroscopy revealed that both phases undergo surface transformation into nickel (oxy)hydroxide species under OER conditions, yet Ni2P-based catalysts demonstrated superior activity and long-term stability. This enhancement is attributed to efficient electron transfer at the dynamic Ni2P/NiOOH interface. Additionally, hollow nanostructures formed at intermediate P/PDA ratios (≤0.3) via the Kirkendall effect and Ostwald ripening contributed to an increased specific surface area and micropore volume, further improving the catalytic performance. Electrochemical impedance spectroscopy confirmed reduced interfacial resistance and enhanced charge transport. These findings offer new insights into the rational design of high-performance electrocatalysts and propose a green, tunable synthesis approach for advanced energy conversion applications.
Published in DiRROS: 03.06.2025; Views: 506; Downloads: 253
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1999. Bronchial bacterial colonization and the susceptibility of isolated bacteria in patients with lung malignancyBojana Beović, Viktorija Tomič, Marko Bitenc, Mateja Marc-Malovrh, Vladimir Dimitrić, Dane Lužnik, Martina Miklavčič, Tamara Božič, Tina Gabrovec, Aleksander Sadikov, Aleš Rozman, 2025, original scientific article Abstract: Background Postoperative pneumonia (POP) remains a leading cause of mortality following lung surgery. Recent studies have confirmed that the respiratory tract below the vocal cords is not sterile and often harbours potentially pathogenic microorganisms (PPMs), putting patients with lung malignancies at an increased risk for pulmonary infections. Patients and methods The study analysed 149 patients who underwent bronchoscopy for lung lesions suspected to be lung cancer. Protected specimen brush (PSB) samples were obtained during bronchoscopy prior to any specific treatment. Bacterial identification and antimicrobial susceptibility testing were conducted on the isolated strains. Results Bacterial colonization was detected in 88.6% of patients, with 21.5% carrying PPMs. Notably, patients with type 2 diabetes exhibited a higher rate of PPM colonization compared to others. Antibiotic susceptibility testing showed no significant differences in efficacy between amoxicillin with clavulanic acid and first-generation cephalosporin in both colonized patients and those with PPMs. Importantly, no multidrug-resistant bacteria were identified. Conclusions Our findings indicate a slightly lower PPM colonization rate compared to previous studies, possibly due to the unique geographic characteristics of the study population. The absence of significant differences in bacterial susceptibility between the two tested antibiotics highlights the need for further research to refine perioperative infection management strategies.
Keywords: bronchial bacterial colonization, potentially pathogenic microorganisms, antibiotic prophylaxis
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2000. Global Impacts Dataset of Invasive Alien Species (GIDIAS)Sven Bacher, Ellen Ryan-Colton, Mario Coiro, Phillip Cassey, Bella S. Galil, Martin A. Nuñez, Michael Ansong, Katharina Dehnen-Schmutz, Georgi Fayvush, Romina D. Fernandez, Maarten De Groot, 2025, original scientific article Abstract: Invasive alien species are a major driver of global change, impacting biodiversity, ecosystem services, and human livelihoods. To document these impacts, we present the Global Impacts Dataset of Invasive Alien Species (GIDIAS), a dataset on the positive, negative and neutral impacts of invasive alien species on nature, nature’s contributions to people, and good quality of life. This dataset arises from the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services’ (IPBES) thematic assessment report of this topic. Data were compiled from published sources, including grey literature, reporting a direct observation of an invasive alien species’ impact. All impact records contain up to 52 fields of contextual information and attempt to link impacts to the global standard “environmental impact classification for alien taxa” (EICAT) and “socio-economic impact classification for alien taxa” (SEICAT). GIDIAS includes more than 22000 records of impacts caused by 3353 invasive alien species (plants, vertebrates, invertebrates, microorganisms) from all continents and realms (terrestrial, freshwater, marine), extracted from over 6700 sources. We intend GIDIAS to be a global resource for investigating and managing the variety of impacts of invasive alien species across taxa and regions.
Keywords: invasive alien species
Published in DiRROS: 02.06.2025; Views: 515; Downloads: 296
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