221. STRUCTURE AND FUNCTIONING OF THE HYPORHEIC ZONES IN THE GRAVEL-BEDS OF FIVE RIVERS IN RELATION TO CATCHMENT LAND USEBarbara Debeljak, 2018, doktorska disertacija Opis: The hyporheic zone has been recognised as a functionally important component of streams and rivers. Due to increasing human impact on ecosystems, studies that assess ecological responses of the hyporheic zone are of great importance. The objectives of the thesis are to study the responses of abiotic parameters, sediment biofilm characteristics (the in situ respiration (R), potential respiratory activity (ETSA), protein content), and invertebrate assemblages (analysed as total assemblages, EPT assemblages and Copepoda assemblages) in the hyporheic zones related to different land use patterns (forest, agricultural and urban areas). The focus of study also includes the impact of clogging. This research is comprised of three sampling campaigns conducted in summer (2013), winter (2013) and spring (2014) in five pre-Alpine Slovenian rivers. For each river, three or six sampling locations were chosen in the downwelling hyporheic sections of three dominant land uses (forest, agriculture and urban) within a 250 m wide impact zone. Three sampling points per location were sampled from two depths (5 –15 cm and 20 – 40 cm) using PVC tube and Bou-Rouch method. The results indicate a significant spatial and temporal heterogeneity of measured hyporheic zone components. Physical and chemical parameters of water revealed moderate response to land use. The effect of land use on the amounts of suspendable fine sediments in the hyporheic zone was observed only in the spring season. The effect of land use was significant for in situ R during summer and spring and for ETSA and protein content in all seasons, indicating that land use, such as agriculture, near a stream can affect biogeochemical processes. A relatively high diversity of invertebrates was recognised in the hyporheic zone. Groups such as Nematoda, Oligochaeta, Copepoda and Chironomidae were found in all samples. Within EPT taxa as representatives of occasional hyporheic invertebrates, 35 taxa were identified. Within Copepoda, as representatives of permanent hyporheic invertebrates, 14 Cyclopoida and 19 Harpacticida taxa were identified. Both assemblages were characterised by high abundance of widespread taxa, such as Baetis sp., Leuctra sp., Diacylops cladestinus and Acanthocyclops hispanicus. Statistically significant differences were observed among land uses in Copopoda assemblages but not for EPT assemblages. Calculated metrics on EPT assemblages showed statistically significant differences in land use in the number of EPT taxa, Simpson index and Shannon-Wiener index. Within Copepoda assemblages, the numbers of Copepoda taxa were significantly higher at forest sites. The hyporheic assemblages were relatively well explained by environmental parameters. This thesis presents a comprehensive study of the hyporheic zone, where both structural and functional measures reflected the ecological integrity of the hyporheic zone. The in situ R and ETSA were generally higher in agriculture stream reaches, indicating that hyporheic functioning responded to nutrients and carbon runoff-derived inputs from agricultural activities within the 250 m impact zone. Thus functional parameters in situ R and ETSA were more efficient indicators of land use impacts in the hyporheic zone than physical and chemical parameters. The potential of using hyporheic invertebrates as bioindicators of environmental conditions was confirmed but should be tested with wider gradients of environmental parameters. The results obtained by this study underlined that the hyporheic zone should be integrated as an additional ecological element by assessing the ecological conditions of surface water bodies. Ključne besede: hyporheic zone, ecosystem functioning, land use, biofilm characteristics, invertebrates Objavljeno v RUNG: 02.07.2018; Ogledov: 4078; Prenosov: 160 Celotno besedilo (5,31 MB) |
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224. NIč ni resnično, vse je dovoljeno : O pasteh internetaBarbara Pregelj, Blažka Müller Pograjc, Miha Poberaj, Boris Veler, Robert Tekavec, Primož Pobevšek, druga izvedena dela Opis: moderiranje okrogle mize v mladinskem klubu Jedro, 2. marca 2018 ob 17h Ključne besede: internet, literatura, odvisnost, kazniva dejanja, internetna varnost Objavljeno v RUNG: 10.04.2018; Ogledov: 4199; Prenosov: 0 Gradivo ima več datotek! Več... |
225. Predstavitev projekta veSeLOL branjeBarbara Pregelj, Lara Brankovič, Ana Cukjati, Vanesa Vodovnik, Maja Orel, Barbara Zlobec, prispevek na konferenci brez natisa Opis: V prispevku predstavljamo teoretski in praktično-izvedbeni okvir ter nekatere rezultate projekta veSeLOL branje, predvsem nekaj novejših didaktizacij slovenskih klasičnih besedil, kot so: Tržačan, Na klancu, Martin Krpan, Matkova Tina, Povodni mož, Tantadruj, Gosenica, Dogodek v mestu Gogi, Tilka in Hiša Marije Pomočnice. Didaktizacije so nastale ob uporabi bralnomotivacijskih strategij M. Sarto. Avtorice didaktizacij so uvodoma pregledale, kako navedena besedila obravnava šolska praksa in učbeniki, dodale svoj predlog z uporabo bralnomotivacijske strategije, to pa še nadgradile z dodatnimi aktivnostmi. Pod mentorstvom Barbare Pregelj so jih priravile študentke Univerze v Novi Gorici Ana Cukjati, Lara Brankovič, Vanesa Vodovnik in Maja Orel ter Osimska štipendistka Barbara Zlobec. Ključne besede: motiviranje za branje, slovenski klasiki, M. Sarto, Univerza v Novi Gorici Objavljeno v RUNG: 10.04.2018; Ogledov: 4514; Prenosov: 0 Gradivo ima več datotek! Več... |
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227. Giant magneto–electric coupling in 100 nm thick Co capped by ZnO nanorodsGiovanni Vinai, Barbara Ressel, Piero Torelli, Federico Loi, Benoit Gobaut, Regina Ciancio, Barbara Casarin, Antonio Caretta, Luca Capasso, Fulvio Parmigiani, Francesco Cugini, Massimo Solzi, Marco Malvestuto, Roberta Ciprian, 2018, izvirni znanstveni članek Ključne besede: ZnO nanorods, Cobalt, X-rays absorption near edge spectroscopy Objavljeno v RUNG: 07.02.2018; Ogledov: 3987; Prenosov: 0 Gradivo ima več datotek! Več... |
228. Conclusively Addressing the CoPc Electronic Structure: A Joint Gas- Phase and Solid-State Photoemission and Absorption Spectroscopy StudyTeng Zhang, I.E. Brumboiu, Valeria Lanzillotto, J. Lüder, C. Grazioli, Erika Giangrisostomi, R. Ovsyannikov, Y. Sassatelli, Ieva Bidermane, Monica de Simone, Marcello Coreno, Barbara Ressel, Matija Stupar, Maddalena Pedio, Petra Rudolf, Barbara Brena, Carla Puglia, 2017, izvirni znanstveni članek Ključne besede: Cobalt Phtalocyanine, photoemission spectroscopy, gas phase, solid state Objavljeno v RUNG: 07.02.2018; Ogledov: 4344; Prenosov: 0 Gradivo ima več datotek! Več... |
229. Tunable orbital angular momentum in high-harmonic generationDavid Gauthier, Primož Rebernik Ribič, Ganesh Adhikari, A Camper, C Chappuis, LF Dimauro, G Dovillaire, Fabio Frassetto, R Geneaux, Paolo Miotti, Luca Poletto, Barbara Ressel, C. Spezzani, Matija Stupar, T Ruchon, Giovanni De Ninno, 2017, izvirni znanstveni članek Ključne besede: Angular orbital momentum, High harmonic generation Objavljeno v RUNG: 05.02.2018; Ogledov: 4269; Prenosov: 761 Celotno besedilo (843,67 KB) |
230. New strategy for magnetic gas sensingRoberta Ciprian, Piero Torelli, Angelo Giglia, B Gobaut, Barbara Ressel, Janez Štupar, Matija Stupar, Antonio Caretta, Giovanni De Ninno, Tommaso Pincelli, Barbara Casarin, Ganesh Adhikari, G Sberviglieri, C Baratto, Marco Malvestuto, 2016, izvirni znanstveni članek Ključne besede: hybrid nanostructures, sensor, absorption spectroscopy Objavljeno v RUNG: 05.02.2018; Ogledov: 4098; Prenosov: 0 Gradivo ima več datotek! Več... |