3911. Kakšen, kateri, čigav – vse o pridevnikihFranc Marušič, Petra Mišmaš, Rok Žaucer, other performed works Abstract: V predavanju je podrobneje predstavljeno, kako se svetovni jeziki glede na rabo pridevnikov razlikujejo (npr. število pridevnikov) in kako so si podobni (hierarhije funkcijskih projekcij in, posledično, vrstni red pridevnikov), predstavljene so različne vrste pridevnikov in njihova raba, kako se pridevniki razlikujejo od drugih besednih vrst, kako otroci pridevnike usvojijo ter kako pridevniki vplivajo na naše opisovanje predmetov. Predstavljeni so eksperimenti, s katerimi ugotavljamo, ali lahko kot vir univerzalne hierarhije projekcij s pridevniki jemljemo splošno kognicijo.
Keywords: pridevniki, pridevniška beseda, funkcijske projekcije, kartografija, slovenščina
Published in RUNG: 25.10.2018; Views: 4386; Downloads: 0 |
3912. Characterisation of charge carrier transport in thin organic semiconductor T layers by time-of-flight photocurrent measurementsGvido Bratina, Egon Pavlica, 2019, review article Abstract: The paper reviews recent advances in characterisation of charge carrier transport in organic semiconductor layers by time-of-flight photocurrent measurements, with the emphasis on the measurements of the samples with co-planar electrodes. These samples comprised an organic semiconductor layer whose thickness is on the order of a μm or less, and thus mimic the structures of organic thin film transistors. In the review we emphasise the importance of considering spatial variation of electric field in these, essentially two-dimensional structures, in interpretation of photocurrent transients. We review the experimental details of this type of measurements and give examples that demonstrate exceptional sensitivity of the method to minute concentration of electrically active defects in the organic semiconductors as well as the capability of probing charge transport along the channels of different mobility that reside in the same sample.
Keywords: organic semiconductors, time of flight, mobiulity
Published in RUNG: 24.10.2018; Views: 3807; Downloads: 0
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3913. Radiation Effects on Optical Fibers and Fiber-Based SensorsSylvain Girard, A. Boukenter, Youcef Ouerdane, Nicolas Richard, Philippe Paillet, Layla Martin-Samos, Luigi Giacomazzi, Claude Marcandella, 2015, independent scientific component part or a chapter in a monograph Keywords: Optical Fibers, radiation-induced point defects, dosimetry, ab-initio
Published in RUNG: 24.10.2018; Views: 3771; Downloads: 0
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3914. New method to process Circular Dichroism experimental data on heat and cold denaturation of polypeptides in waterArtem Badasyan, Matjaž Valant, 2018, published scientific conference contribution abstract Abstract: During the past decade the experimental studies of biopolymer conformations have reached an
unprecedented level of detailization and allow to study single molecules in vivo [1]. Processing of
experimental data essentially relies on theoretical approaches to conformational transitions in
biopolymers [2]. However, the models that are currently used, originate from the early 1960's and
contain several unjustified assumptions, widely accepted at that time. Thus, the view on the
conformational transitions in the polypeptides as a two-state process has very limited applicability
because the all-or-none transition mechanism takes place only in short polypeptides with sizes
comparable to the spatial correlation length; the original formulation of Zimm-Bragg model is
phenomenological and does not allow for a microscopic model for water; the implicit consideration of
the water-polypeptide interactions through the ansatz about the quadratic dependence of free energy
difference on temperature can only be justified through the assumption of an ideal gas with a constant
heat capacity. To get rid of these deficiencies, we augment the Hamiltonian formulation [3] of the
Zimm-Bragg model [4] with the term describing the water-polypeptide interactions [5]. The analytical
solution of the model results in a formula, ready to be fit to Circular Dichroism (CD) data for both heat
and cold denaturation. On the example of several sets of experimental data we show, that our formula
results in a significantly better fit, as compared to the existing approaches. Moreover, the application
of our procedure allows to compare the strengths of inter- and intra-molecular H-bonds, an
information, inaccessible before.
References
[1] I. König, A. Zarrine-Afsar, M. Aznauryan, A. Soranno, B. Wunderlich, F. Dingfelder, J. C. Stüber, A. Plückthun, D.
Nettels, B. Schuler, (2015), Single-molecule spectroscopy of protein conformational dynamics in live eukaryotic
cells/Nature Methods, 12, 773-779.
[2] J. Seelig, H.-J. Schönfeld, (2016), Thermal protein unfolding by differential scanning calorimetry and circular
dichroism spectroscopy. Two-state model versus sequential unfolding/Quarterly Reviews of Biophysics, 49, e9, 1-24.
[3] A.V. Badasyan, A. Giacometti, Y. Sh. Mamasakhlisov, V. F. Morozov, A. S. Benight, (2010), Microscopic formulation
of the Zimm-Bragg model for the helix-coil transition/Physical Review E, 81, 021921.
[4] B. H. Zimm, J. K. Bragg, (1959), Theory of the Phase Transition between Helix and Random Coil in Polypeptide
Chains/Journal of Chemical Physics, 31, 526.
[5] A. Badasyan, Sh.A. Tonoyan, A. Giacometti, R. Podgornik, V.A. Parsegian, Y.Sh. Mamasakhlisov, V.F. Morozov,
(2014), Unified description of solvent effects in the helix-coil transition/Physical Review E, 89, 022723.
Corresponding author: Artem Badasyan (artem.badasyan@ung.si)
Keywords: Biopolymers, Circular Dichroism, Zimm-Bragg model, helix-coil transition.
Published in RUNG: 22.10.2018; Views: 3837; Downloads: 0
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3918. Accelerating GW calculations with optimal polarizability basisPaolo Umari, Luigi Giacomazzi, Xiaofeng Qian, Nicola Marzari, Stefano Baroni, Geoffrey Stenuit, 2011, independent scientific component part or a chapter in a monograph Keywords: GW, silicon nitride, DFT, silica, electronic structure
Published in RUNG: 19.10.2018; Views: 3374; Downloads: 0
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3920. Transparent Photocatalytic Thin Films on Flexible Polymer SubstratesNives Vodišek, Andraž Šuligoj, Dorota Korte, Urška Lavrenčič Štangar, 2018, original scientific article Keywords: photocatalysis, self-cleaning surface, TiO2, ZrO2, SiO2, transparent films, thermosensitive
substrates, PMMA, PVC, PES, PVDF
Published in RUNG: 19.10.2018; Views: 3648; Downloads: 149
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