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13. Beyond Neoliberalism : Social Analysis after 1989Gal Kirn, Marian Burchardt, 2017, scientific monograph Abstract: This book explores how changes that occurred around 1989 shaped the study of the social sciences, and scrutinizes the impact of the paradigm of neoliberalism in different disciplinary fields. The contributors examine the ways in which capitalism has transmuted into a seemingly unquestionable, triumphant framework that globally articulates economics with epistemology and social ontology. The volume also investigates how new narratives of capitalism are being developed by social scientists in order to better understand capitalism’s ramifications in various domains of knowledge. At its heart, Beyond Neoliberalism seeks to unpack and disaggregate neoliberalism, and to take readers beyond the analytical limitations that a traditional framework of neoliberalism entails.
Keywords: neoliberalism, end of socialism, end of "end of history", transition discourse, end of welfare state, privatisation, deregulation
Published in RUNG: 19.08.2020; Views: 2370; Downloads: 0
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14. User operation of sub-picosecond thz coherent transition radiation parasitic to a VUV FELS. Di Mitri, N. Adhlakha, Enrico Allaria, Laura Badano, Giovanni De Ninno, P. Di Pietro, G. Gaio, Luca Giannessi, G. Penco, A. Perucchi, Primož Rebernik Ribič, 2019, published scientific conference contribution Keywords: free-electron lasers, coherent transition radiation, electron beam manipulation
Published in RUNG: 15.01.2020; Views: 3064; Downloads: 86
 Link to full text
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15. Coherent THz Emission Enhanced by Coherent Synchrotron Radiation WakefieldPrimož Rebernik Ribič, Giovanni De Ninno, 2018, original scientific article Abstract: We demonstrate that emission of coherent transition radiation by a ∼1 GeV energy-electron beam passing through an Al foil is enhanced in intensity and extended in frequency spectral range, by the energy correlation established along the beam by coherent synchrotron radiation wakefield, in the presence of a proper electron optics in the beam delivery system. Analytical and numerical models, based on experimental electron beam parameters collected at the FERMI free electron laser (FEL), predict transition radiation with two intensity peaks at ∼0.3 THz and ∼1.5 THz, and extending up to 8.5 THz with intensity above 20 dB w.r.t. the main peak. Up to 80-µJ pulse energy integrated over the full bandwidth is expected at the source, and in agreement with experimental pulse energy measurements. By virtue of its implementation in an FEL beam dump line, this work promises dissemination of user-oriented multi-THz beamlines parasitic and self-synchronized to EUV and x-ray FELs.
Keywords: terahertz radiation, free-electron lasers, coherent transition radiation
Published in RUNG: 12.01.2020; Views: 2943; Downloads: 0
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16. On spin description of water-biopolymer interactions: theory and experiment of reentrant order-disorder transition.Artem Badasyan, invited lecture at foreign university Abstract: The experimental studies of biopolymer conformations have reached an unprecedented level of
detailization during the past decade and allow now 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.
Keywords: helix-coil transition, water-polypeptide interactions
Published in RUNG: 13.03.2019; Views: 3189; Downloads: 0
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17. Scanning Photoelectron Spectro‐Microscopy: A Modern Tool for the Study of Materials at the NanoscalePatrick Zeller, Matteo Amati, Hikmet Sezen, Mattia Scardamaglia, Claudia Struzzi, Carla Bittencourt, Gabriel Lantz, Mahdi Hajlaoui, Evangelos Papalazarou, Marino Marsi, Mattia Fanetti, Stefano Ambrosini, Silvia Rubini, Luca Gregoratti, 2018, review article Keywords: Scanning photoemission microscopy, graphene, GaAs, nanowires, Fermi Level, Mott-Hubbard transition
Published in RUNG: 07.12.2018; Views: 3594; Downloads: 0
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18. 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: 3752; Downloads: 0
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19. CVD Growth of Molybdenum Diselenide Surface Structures with Tailored MorphologyM. Naeem Sial, Usman Muhammad, Binjie Zheng, Yanan Yu, Andraž Mavrič, Fangzhu Qing, Matjaž Valant, Zhiming M. Wang, 2018, original scientific article Abstract: Controllable atmospheric pressure CVD has been optimized to grow transition metal dichalcogenide MoSe2 with tunable morphology at 750 °C on a silicon substrate with a native oxide layer of 250 nm. Utilizing tetrapotassium perylene-3,4,9,10-tetracarboxylate (PTAS) as a seed promoter and varying the vertical distance between the substrate and the precursor MoO3, different morphologies of MoSe2 were achieved, including 2D triangles, hexagons, 3D pyramids and vertically aligned MoSe2 sheets. We find that the shape of MoSe2 is highly dependent upon the distance h between the substrate and the precursor. The change in the morphology is attributed to the confinement of vapor (MoO3 and Se) precursors and their concentrations due to the change in h. These results are helpful in improving our understanding about the factors which influence the morphology (shape evolution) and also the continuous growth of MoSe2 films.
Keywords: Transition metal dichalcogenides, 2D materials, Seed promotor, Chemical vapor deposition, Molybdenum diselenide
Published in RUNG: 20.08.2018; Views: 3792; Downloads: 14
 Full text (2,68 MB) |
20. Physics behind the Conformational Transitions in Biopolymers. Demystification of DNA melting and Protein FoldingArtem Badasyan, invited lecture at foreign university Abstract: Biophysics is the area of research, devoted to the studies of physical problems related to living systems. Animal cell is the smallest unit of an organism and mainly contains water solutions of structurally inhomogeneous polymers of biological origin: polypeptides (proteins) and polynucleotides (DNA, RNA). Statistical physics of macromolecules allows to describe the conformations of both synthetic and bio-polymers and constitutes the basis of Biophysics. During the talk I will report on the biophysical problems I have solved with numerical simulations (Langevin-based Molecular Dynamics of Go-like protein folding model and Monte Carlo with Wang-Landau sampling) and analytical studies of spin models (formula evaluation by hand, enforced with computer algebra systems). The direct connections with the theory of phase transitions, algebra of non-commutative operators and decorated spin models will be elucidated.
Keywords: Biophysics, protein folding, helix-coil transition, spin models
Published in RUNG: 13.12.2016; Views: 5796; Downloads: 0
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