4591. Pobude za tretji pas na odseku avtoceste Vrhnika - Razdrto do leta 2025, za razširitev vseh slovenskih avtocest in hitro progo Nova Gorica - PtujZoran Božič, other performed works Abstract: Dopolnjena in razširjena pobuda za tretji pas na primorki, tokrat naslovljena na vlado Republike Slovenije. Pobude upoštevajo povečanje prometne mobilnosti in zmanjšanje pretočnosti, vključujejo pa tudi skrb za trajnostni razvoj in samooskrbo prebivalstva s hrano.
Keywords: Državni svet, Vlada RS, svetniška pobuda, avtocesta Ljubljana - Razdrto, avtocestni križ, šestpasovnica, kamionski promet, hitra proga, rimska cesta Oglej - Ptuj
Published in RUNG: 18.09.2017; Views: 4352; Downloads: 26
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4593. FROM SPINODAL DECOMPOSITION AND MOLECULAR DISPERSION OF POLYSILANES TO SUPER-HARD NANOCOATINGArtem Badasyan, Boštjan Mavrič, Matjaž Valant, published scientific conference contribution abstract Abstract: Conformations of polymer molecules in solution crucially depend on the sign of the
effective potential energy of interaction between the monomers, also known as the
quality of solvent. Therefore in “poor” solvent regime, when effective attraction
overwhelms, the experimental measurements of polymer sizes are complicated by the
agglomeration of macromolecules, followed by precipitation. This phenomenon, also
known as spinodal decomposition, causes serious problems when the goal is to
determine properties of individual macromolecules. Interestingly, while in the case of
carbon-based polymers the precipitation-related problems can be easily avoided with
dilution, this is not the case for polysilanes, i.e. polymeric chains on basis of silicon.
Although the linear polysilanes were first synthesized in early 1920’s, the aggregationrelated
problems have hampered their studies and applicability until recently.
In the Materials Research Laboratory of University of Nova Gorica we have developed
a technology to strengthen the scratch-resistance nanocoating for glass on the basis of
polysilane dendritic polymers we synthesized. Through the prism of the Flory-Huggins
theory, that provides a miscibility phase diagram in temperature-volume fraction
variables, the quality of polymer solution can be manipulated by changing the
temperature. Using Dynamic Light Scattering (DLS) and Differential Scanning
Calorimetry (DSC) we have managed to show, that at temperatures in the range of 40-
50 C the deagglomeration of the dendritic polysilane takes place in tetrahydrofuran
(THF) [1], and the system becomes a true molecular dispersion with particles 20 nm in
size [2]. Introducing such molecular dispersion into the alumina precursor solution
yields an amorphous nanocomposite stabilized by a high level of strain. This resulted in
an extraordinary increase of hardness and scratch resistance of the alumina – polymer
nanocomposite coating that can be used for glass protection [3].
Keywords: Polysilane, dendrimer, solubility
Published in RUNG: 12.09.2017; Views: 4328; Downloads: 0
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4596. Sadovnjak starih sadnih sort v Kojskem v Brdih : Goriško sadje iz preteklosti v prihodnostZoran Božič, other performed works Abstract: Prezentacija prinaša zgodbe o Luciju Columelli, Ivanu Bolletu, Potopisu Jožefa Levičnika, sadovnjaku v Morskem pri Kanalu, Petoralih in pituralkah, Ojkarstvu od pozebe do obnove, Destileriji Capovilla, knjigah Stare sadne sorte na Goriškem in Sadje sonca ter sadovnjaku Pod skalco.
Keywords: agronomija, sadjarstvo, visokodebelni travniški sadvnjak, Lucij Columella, Cadiz, Ivan Bolle, Goriške črešnje, Nikolaj II. Romanov, Ernest Klavžar, Jožef Levičnik, Ročinj, Jožef Ušaj, Kmečko branje, Carlo Hugues, Maslinarstvo u Istri, Gianni Vittorio Capovilla, destilerija, pettorali caldi, pituralke
Published in RUNG: 11.09.2017; Views: 3921; Downloads: 257
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4598. Cortisol claws concentrations in dogs from birth to 60 days of ageJasmine Fusi, Tanja Peric, Barbara Bolis, Alessandro Rota, Antonella Comin, Maria Cristina Veronesi, 2017, published scientific conference contribution abstract Abstract: During the last fetal stage of development and in the neonatal period, the hypothalamic- pituitary- adrenal (HPA) axis secretes cortisol (C), responsible for several physiologic processes. The claws were recently proved to be a useful, non- invasive matrix for long time- frame retrospective C levels analysis also in puppies (Veronesi et al. 2015, Theriogenology 84:791–796). Because of the scarce knowledge on canine perinatology, this study was aimed to assess the C concentrations in claws of newborn puppies collected at birth, 30 and 60 days of age, and to evaluate the possible influence of age, gender and type
of birth on C claws accumulation. The study was performed on 58
large purebred, normal, healthy puppies, born by spontaneous or cesarean parturition. The mean C claws concentrations significantly decrease from birth (26 ± 16.39 pg/mg) to 30 (10 ± 4.53 pg/mg) and 60 (6 ± 3.12 pg/mg) days of age (p < 0.0001); a decrease was also seen from 30 to 60 days of age (p < 0.05). No influence of newborn gender and type of birth was found. This trend of decrease is in agreement with data reported by (Veronesi et al. 2015, Theriogenology 84:791–796) in dead puppies, and suggests the important role of C around the time of birth. However the exact source of the C accumulated in claws of puppies at birth must be clarified, while the source of C accumulated at 30, and even more at 60 days, can be supposed to be addressed to the newborn itself.
Keywords: Cortisol, claws, dog
Published in RUNG: 01.09.2017; Views: 4580; Downloads: 0
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4599. Combined effects of early season leaf removal and climatic conditions on aroma precursors in ‘Sauvignon blanc’ grapesPaolo Sivilotti, Rachele FALCHI, Jose Carlos Herrera, Branka Škvarč, Lorena Butinar, Melita Sternad Lemut, Marijan Bubola, Paolo SABBATINI, Klemen Lisjak, Andreja Vanzo, 2017, original scientific article Abstract: Early leaf removal around the cluster zone is a common technique applied in cool climate viticulture, to regulate yield components and improve fruit quality. Despite the increasing amount of information on early leaf removal and its impact on total soluble solids, anthocyanins and polyphenols, less is known regarding aroma compounds. In order to verify the hypothesis that defoliation, applied before or after flowering, could impact the biosynthesis of thiol precursors, we performed a two year (2013 and 2014) experiment on Sauvignon blanc. We provided evidence that differential accumulation of thiols precursors in berries is affected by the timing of defoliation and this impact was related to modifications in biosynthetic pathway. Furthermore, the possible interaction between leaf removal treatment and seasonal weather conditions, and its effect on the biosynthesis of volatile precursors are discussed. Our results suggested that in Sauvignon blanc the relative proportion of 4-S-glutathionyl-4-methylpentan-2-one (G-4MSP) and 3-S-glutathionylhexan-1-ol (G-3SH) precursors can be affected by defoliation, and this could be related to the induction of two specific genes encoding glutathione-S-transferases (VvGST3 and VvGST5), while no significant effects on basic fruit chemical parameters, polyphenols and methoxypyrazines were ascertained under our experimental conditions.
Keywords: early leaf removal, cluster exposure, thiol precursors, methoxypyrazines, glutathione S-transferase, Vitis vinifera
Published in RUNG: 31.08.2017; Views: 4296; Downloads: 0
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4600. Harvesting and blending options for lower alcohol wines: a sensory and chemical investigationRocco Longo, John W. Blackman, Guillaume Antalick, Peter J. Torley, Suzy Y. Rogiers, Leigh Schmidtke, 2017, original scientific article Keywords: PLS regression, early harvest, herbaceous, reduced-alcohol, sensory descriptive analysis, volatiles
Published in RUNG: 30.08.2017; Views: 4053; Downloads: 0
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