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Characterizing the groundwater flow regime in a landslide recharge area using stable isotopes: a case study of the Urbas landslide area in NW Slovenia
Katja Koren, Luka Serianz, Mitja Janža, 2022, original scientific article

Abstract: Slope stability strongly depends on the prevailing hydrological and hydrogeological conditions. The amount and intensity of precipitation and changing groundwater levels are important landslide triggering factors. Environmental tracers, including the chemical and stable isotope compositions of precipitation and groundwater, were used to gain insight into the groundwater dynamics of the Urbas landslide. The landslide is situated in a mountainous area with steep slopes and high precipitation amount and poses a high risk for the safety of the Koroška Bela settlement that lies downstream. The stable isotope analyses of oxygen-18 (18O) and deuterium (2H) in the precipitation and groundwater were used to estimate the groundwater mean residence time and the average altitude of the landslide recharge area. This information will help to plan and prioritize remedial landslide measures aiming to reduce the recharge of the landslide body and, thus, lower the risk of transformation of the sliding material into debris flow. The results of the chemical analysis of samples taken from springs and a piezometer show a Ca–HCO3 water type. This indicates low water–rock interaction in a landslide area composed of Upper Carboniferous and Permian clastic rocks and points to upper laying carbonate rocks and scree deposits as the main recharge area. Water samples for stable isotope analyses of δ18O and δ2H were collected from a rain gauge, springs, and a piezometer over a two-year period (2018–2020). The estimated mean recharge altitude of the groundwater at sampling points was from approximately 1700 to 1800 m a.s.l. with a mean residence time of 2–5 months.
Keywords: landslide, groundwater, stable isotopes, oxygen-18, deuterium, hydrogeology, recharge dynamic
Published in DiRROS: 16.03.2022; Views: 221; Downloads: 115
.pdf Full text (3,55 MB)

Carbon flux and environmental parameters data from an eddy covariance tower in a mid-succession ecosystem developed on abandoned karst grassland in Slovenia (2012-2019)
Koffi Dodji Noumonvi, Klemen Eler, Dominik Vodnik, Primož Simončič, Mitja Ferlan, 2021, complete scientific database or corpus

Abstract: This data set was used to estimate carbon fluxes by comparing eddy covariance tower (Long = 13.916701, Lat = 45.543491) measurements with vegetation indices based estimates.
Keywords: eddy covariance, GPP, NEE, empirical model, LUE model, vegetation photosynthesis model, vegetation indices
Published in DiRROS: 21.02.2022; Views: 207; Downloads: 176
Full text (29,63 KB)
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Allergies and COVID-19 vaccines : an ENDA/EAACI position paper
Annick Barbaud, Lene Heise Garvey, Alessandra Arcolaci, Knut Brockow, Francesca Mori, Cristobalina Mayorga, Maja Jošt, Mitja Košnik, Mihaela Zidarn, Maria J Torres, 2022, original scientific article

Abstract: Anaphylaxis, which is rare, has been reported after COVID 19 vaccination, but its management is not standardized. Method. Members of the European Network for Drug Allergy and the European Academy of Allergy and Clinical Immunology interested in drug allergy participated in an online questionnaire on pre-vaccination screening and management of allergic reactions to COVID-19 vaccines, and literature was analysed. Results. No death due to anaphylaxis to COVID-19 vaccines has been confirmed in scientific literature. Potential allergens, polyethylene glycol (PEG), polysorbate and tromethamine, are excipients. The authors propose allergy evaluation of persons with the following histories: 1- anaphylaxis to injectable drug or vaccine containing PEG or derivatives; 2- anaphylaxis to oral/topical PEG containing products; 3-recurrent anaphylaxis of unknown cause; 4-suspected or confirmed allergy to any mRNA vaccine, 5-confirmed allergy to PEG or derivatives. We recommend a prick-to-prick skin test with the left over solution in the suspected vaccine vial to avoid waste. Prick test panel should include PEG 4000 or 3500, PEG 2000 and polysorbate 80. The value of in vitro test is arguable. Conclusions. These recommendations will lead to a better knowledge of the management and mechanisms involved in anaphylaxis to COVID-19 vaccines and enable more people with history of allergy to be vaccinated.
Keywords: SARS-CoV-2, COVID-19, COVID-19 vaccines, allergens, anapylaxis, drug hypersensitivity
Published in DiRROS: 07.02.2022; Views: 244; Downloads: 66
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Empirical vs. light-use efficiency modelling for estimating carbon fluxes in a mid-succession ecosystem developed on abandoned karst grassland
Koffi Dodji Noumonvi, Mitja Ferlan, 2020, original scientific article

Abstract: Karst systems represent an important carbon sink worldwide. However, several phenomena such as the CO2 degassing and the exchange of cave air return a considerable amount of CO2 to the atmosphere. It is therefore of paramount importance to understand the contribution of the ecosystem to the carbon budget of karst areas. In this study conducted in a mid-succession ecosystem developed on abandoned karst grassland, two types of model were assessed, estimating the gross primary production (GPP) or the net ecosystem exchange (NEE) based on seven years of eddy covariance data (2013%2019): (1) a quadratic vegetation index-based empirical model with five alternative vegetation indices as proxies of GPP and NEE, and (2) the vegetation photosynthesis model (VPM) which is a light use efficiency model to estimate only GPP. The Enhanced Vegetation Index (EVI) was the best proxy for NEE whereas SAVI performed very similarly to EVI in the case of GPP in the empirical model setting. The empirical model performed better than the VPM model which tended to underestimate GPP. Therefore, for this ecosystem, we suggest the use of the empirical model provided that the quadratic relationship observed persists. However, the VPM model would be a good alternative under a changing climate, as it is rooted in the understanding of the photosynthesis process, if the scalars it involves could be improved to better estimate GPP.
Keywords: eddy covariance, carbon flux, GPP, NEE, vegetation indices, remote sensing, satellite data, GPP map
Published in DiRROS: 03.01.2022; Views: 255; Downloads: 205
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Trajnostno gospodarjenje z gozdovi in trajnostna oskrba lesnopredelovalnih podjetij z lesom
Mitja Skudnik, Polona Hafner, 2021, preface, afterword

Published in DiRROS: 18.12.2021; Views: 323; Downloads: 114
.pdf Full text (46,36 KB)

Mnenje za spremljanje bolnikov po preboleli covidni pljučnici
Matjaž Turel, Natalija Edelbaher, Matjaž Fležar, Matevž Harlander, Peter Kecelj, Izidor Kern, Majda Kočar, Peter Kopač, Mitja Košnik, Robert Marčun, Igor Požek, Mirjana Rajer, Irena Šarc, Jurij Šorli, Dušanka Vidovič, Katarina Osolnik, 2021, original scientific article

Abstract: Pljučnica je najpogostejši vzrok za težji potek okužbe z virusom SARS-CoV-2 in s hospitalizacijo. Potek covidne pljučnice je lahko različen; infiltrati, vidni na rentgenski sliki, se lahko resorbirajo spontano, včasih pa je potrebno zdravljenje s sistem-skimi glukokortikoidi. Ob odpustu iz bolnišnice zdravljenje običajno še ni končano, zato je Združenje pulmologov Slovenije v želji po enotnem obravnavanju bolnikov s covidno pljučnico izdelalo mnenje za obravnavo in sledenje bolnikov po od-pustu iz bolnišnice. Zavedamo se, da ob novi bolezni ne gre za dokončno priporočilo, saj bodo nova spoznanja o covidni pljučnici zanesljivo zahtevala obnavljanje priporočil.
Keywords: covid-19, mnenja, pljučnica, pulmologija, sistemski glukokortikoidi, covidna pljučnica
Published in DiRROS: 15.12.2021; Views: 482; Downloads: 44
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