61. Consistent determination of the heating rate of light-absorbing aerosol using wavelength- and time-dependent Aethalometer multiple-scattering correctionLuca Ferrero, Vera Bernardoni, Luca Santagostini, Sergio Cogliati, Francesca Soldan, Sara Valentini, Dario Massabò, Griša Močnik, Asta Gregorič, Martin Rigler, 2021, izvirni znanstveni članek Opis: Accurate and temporally consistent measurements of light absorbing aerosol (LAA) heating rate (HR) and of its source apportionment (fossil-fuel, FF; biomass-burning, BB) and speciation (black and brown Carbon; BC, BrC) are needed to evaluate LAA short-term climate forcing. For this purpose, wavelength- and time-dependent accurate LAA absorption coefficients are required. HR was experimentally determined and apportioned (sources/species) in the EMEP/ACTRIS/COLOSSAL-2018 winter campaign in Milan (urban-background site). Two Aethalometers (AE31/AE33) were installed together with a MAAP, CPC, OPC, a low volume sampler (PM2.5) and radiation instruments. AE31/AE33 multiple-scattering correction factors (C) were determined using two reference systems for the absorption coefficient: 1) 5-wavelength PP_UniMI with low time resolution (12 h, applied to PM2.5 samples); 2) timely-resolved MAAP data at a single wavelength. Using wavelength- and time-independent C values for the AE31 and AE33 obtained with the same reference device, the total HR showed a consistency (i.e. reproducibility) with average values comparable at 95% probability. However, if different reference devices/approaches are used, i.e. MAAP is chosen as reference instead of a PP_UniMI, the HR can be overestimated by 23-30% factor (by both AE31/AE33). This became more evident focusing on HR apportionment: AE33 data (corrected by a wavelength- and time-independent C) showed higher HRFF (+24±1%) and higher HRBC (+10±1%) than that of AE31. Conversely, HRBB and HRBrC were -28±1% and -29±1% lower for AE33 compared to AE31. These inconsistencies were overcome by introducing a wavelength-dependent Cλ for both AE31 and AE33, or using multi-wavelength apportionment methods, highlighting the need for further studies on the influence of wavelength corrections for HR determination.
Finally, the temporally-resolved determination of C resulted in a diurnal cycle of the HR not statistically different whatever the source- speciation- apportionment used.
Ključne besede: climate change, heating rate, black carbon, light absorbing aerosols
Objavljeno v RUNG: 09.06.2021; Ogledov: 2085; Prenosov: 0
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62. Pripovedovalne strategije med inovacijo in pedagoško prakso : PRINOBarbara Pregelj, Barbara Baloh, Eda Birsa, Anika Velišček, Barbara Masten, Lucija Selan, Tjaša Doliak, Mija Umer, Sara Spruk, 2020, strokovna monografija Opis: Priročnik prinaša didaktizacije, ki so nastala v okviru projekta PRINO, v katerem so sodelovali pedagoški in delovni mentorji ter študentke Univerze na Primorskem Pedagoške fakultete in Univerze v Novi Gorici. Projekt je potekal v okviru programa Po kreativni poti do znanja.
Ključne besede: pouk, didaktika
Objavljeno v RUNG: 12.05.2021; Ogledov: 2319; Prenosov: 27
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63. An anti-HER2 nanobody binds to its antigen HER2 via two independent paratopesDaniele Ubbiali, Marco Orlando, Matic Kovačič, Claudio Iacobucci, Marta S. Semrau, Gregor Bajc, Sara Fortuna, Gregor Ilc, Barbara Medagli, Sandra Oloketuyi, Ario De Marco, 2021, izvirni znanstveni članek Ključne besede: NMR, cross-linking, mass spectrometry, nanobodies, modelling, rational mutagenesis
Objavljeno v RUNG: 15.04.2021; Ogledov: 2346; Prenosov: 0
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64. Effects of polyethylene terephthalate (PET) microplastics and acid rain on physiology and growth of Lepidium sativumSara Pignattelli, Andrea Broccoli, Manuela Piccardo, Antonio Terlizzi, Monia Renzi, 2021, izvirni znanstveni članek Opis: This study evaluated the chronic toxicity (30 days) of different sizes of polyethylene terephthalate (PET)
microplastics (60e3000 mm) provided alone or in combination with acid rain, on garden cress (Lepidium
sativum). Both biometrical and physiological traits have been evaluated: i) percentage inhibition of seed
germination, plant height, leaf number and fresh biomass production; ii) oxidative stress responses
(hydrogen peroxide; ascorbic acid and glutathione production); iii) impairment in photosynthetic machinery
in term of pigments production; iv) aminolevulinic acid and proline production. Results highlighted
that different sizes of PET, alone or in combination with acid rain, are able to negatively affect
both biometrical and physiological plant traits. In particular, the lower size of microplastics is able to
negatively affect growth and development, as well as to trigger the oxidative burst. Regarding the pigments
production, PET coupled with acid rain, induced a higher production of Chl-b, and an inhibition of
aminolevulinic acid.
Ključne besede: polyethylene terephthalate, acid rain, lepidium sativum, oxidative burst, germinability, chlorophylls
Objavljeno v RUNG: 02.04.2021; Ogledov: 1928; Prenosov: 0
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65. Electronic properties of phases in the quasi-binary Bi[sub]2Se[sub]3-Bi[sub]2S[sub]3 systemZipporah Rini Benher, Sandra Gardonio, Mattia Fanetti, Paolo Moras, Asish K. Kundu, Chiara Bigi, Matjaž Valant, 2021, izvirni znanstveni članek Opis: We explored the properties of the quasi-binary Bi2Se3–Bi2S3 system over a wide compositional range. X-ray diffraction analysis demonstrates that rhombohedral crystals can be synthesized within the solid solution interval 0–22 mol% Bi2S3, while at 33 mol% Bi2S3 only orthorhombic crystals are obtained. Core level photoemission spectroscopy reveals the presence of Bi3+, Se2− and S2− species and the absence of metallic species, thus indicating that S incorporation into Bi2Se3 proceeds prevalently through the substitution of Se with S. Spin- and angle-resolved photoemission spectroscopy shows that topological surface states develop on the surfaces of the Bi2Se3−ySy (y ≤0.66) rhombohedral crystals, in close analogy with the prototypical case of Bi2Se3, while the orthorhombic crystals with higher S content turn out to be trivial semiconductors. Our results connect unambiguously the phase diagram and electronic properties of the Bi2Se3–Bi2S3 system.
Ključne besede: topological insulator, quasi-binary Bi2Se3-Bi2S3 system, electronic properties
Objavljeno v RUNG: 29.03.2021; Ogledov: 2209; Prenosov: 0
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66. Effect of Humanizing Mutations on the Stability of the Llama Single-Domain Variable RegionMiguel Soler, Barbara Medagli, Jiewen Wang, Sandra Oloketuyi, Gregor Bajc, He Huang, Sara Fortuna, Ario De Marco, 2021, izvirni znanstveni članek Ključne besede: nanobody framework, modeling, nanobody humanization, CDR grafting
Objavljeno v RUNG: 27.01.2021; Ogledov: 2364; Prenosov: 65
 Celotno besedilo (2,00 MB) |
67. Spremljanje, ugotavljanje in zagotavljanje kakovosti: poročilo za študijsko leto 2019/2020 : Univerza v Novi Gorici. : poročilo za študijsko leto 2019/2020 : Univerza v Novi Gorici.Iztok Arčon, Jana Beguš, Blaž Belec, Martina Bergant Marušič, Lorena Butinar, IMRE CIKAJLO, Saša Dobričič, Sandra Gardonio, Renata Kop, Martin Knez, Boštjan Potokar, Branka Mozetič Vodopivec, Egon Pavlica, Samo Stanič, Tea Stibilj Nemec, Željko Oset, VERONIA Piccinini, Peter Purg, Arthur Stepanov, Aljaž Rener, Nives Štefančič, Ana Toroš, Tanja Urbančič, Vanesa Valentinčič, NIKA VODOPIVEC, elaborat, predštudija, študija Ključne besede: samoevalvacijsko poročilo
Objavljeno v RUNG: 23.12.2020; Ogledov: 3359; Prenosov: 0
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68. Short-term physiological and biometrical responses of Lepidium sativum seedlings exposed to PET-made microplastics and acid rainSara Pignattelli, Andrea Broccoli, Manuela Piccardo, Serena Felline, Antonio Terlizzi, Monia Renzi, 2021, izvirni znanstveni članek Opis: Plastics enter in terrestrial natural system primarily by agricultural purposes, while acid rain is the result of
anthropogenic activities. The synergistic effects of microplastics and acid rain on plant growth are not known. In
this study, different sizes of polyethylene terephthalate (PET) and acid rain are tested on Lepidium sativum, in two
separate experimental sets. In the first one we treated plants only with PET, in the second one we used PET and
acid rain together. In both experimentations we analyzed: i) plant biometrical parameters (shoot height, leaf
number, percentage inhibition of seed germination, fresh biomass), and ii) oxidative stress responses (hydrogen
peroxide; ascorbic acid and glutathione). Results carried out from our experiments highlighted that different
sizes of polyethylene terephthalate are able to affect plant growth and physiological responses, with or without
acid rain supplied during acute toxicity (6 days).
Short description: This study showed that different sizes of PET microplastics affect physiological and biometrical
responses of Lepidum sativum seedlings, with or without acid rain; roots and leaves responded differently
Ključne besede: Polyethylene terephthalate
Acid rain
Oxidative stress
Biometrical response
Lepidium sativum
Objavljeno v RUNG: 16.12.2020; Ogledov: 2321; Prenosov: 0
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69. Ga2Se3 Nanowires via Au-Assisted Heterovalent Exchange Reaction on GaAsFederico Berto, Niloofar Haghighian, Katja Ferfolja, Sandra Gardonio, Mattia Fanetti, Faustino Martelli, Valentina Mussi, Vladimir G. Dubrovskii, Igor V. Shtrom, Alfonso Franciosi, Silvia Rubini, 2020, izvirni znanstveni članek Ključne besede: nanowires, Gallium arsenide, Gallium Selenide, gold, molecular beam epitaxy
Objavljeno v RUNG: 15.12.2020; Ogledov: 2437; Prenosov: 0
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