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27. Béla Balázs and the Eye of the MicroscopeEszter Polonyi, 2012, izvirni znanstveni članek Opis: This study explores the significance of the cinematic close-up to one of the earliest theories of film, produced by Béla Balázs, on the basis of a widespread technique of microscopy in the life sciences, notably in the work of his brother Evin Bauer, a theorist of microbiology. Balázs imagines that silent film records life in its immanence and spontaneity by virtue of what he calls the “physiognomic” nature of its signs. Rather than generating signs that must be passed through an alphabetic cipher, as had been required under the regime of the written or literary, Balázs presents film as liberating our access to the flow of optical data. Interestingly, however, Balázs retains the need otherwise characteristic of scientific analysis for dividing up the image into semiotic units, what he describes as “atomization.” He insists on returning the real to a symbolic order and making film into a language. Ključne besede: film history, media studies, science and technology studies, Weimar cinema, media archaeology Objavljeno v RUNG: 10.12.2020; Ogledov: 2665; Prenosov: 0 Gradivo ima več datotek! Več... |
28. Advantages and disadvantages of experiments with ultrashort two-color pulsesMatija Stupar, 2020, doktorska disertacija Opis: Advances in the development of lasers have led to a new class of radiation sources generating coherent, tunable, ultrashort light pulses in the spectral region ranging from infrared to soft X-rays. This includes high-order harmonics generation in gas (HHG), on which relies the CITIUS facility at University of Nova Gorica (Slovenia), and free-electron lasers (FELs), such as the facility FERMI at Elettra-Sincrotrone Trieste (Italy). The distinctive structure of HHG and FEL radiation paved the way to time-resolved experiments, which are performed to investigate events occurring on a short, or very short, temporal scale, from picoseconds to femtoseconds.
This work focuses on the advantages and disadvantages of some experimental techniques based on using these novel light sources to investigate the microscopic and/or ultrafast dynamics of matter samples, which have been previously driven out of equilibrium.
Advantages rely on the implementation of various applications based on two-color schemes and, more specifically, include the possibility of acquiring two-dimensional frequency maps, measuring electrons’ effective masses, or investigating electronic properties decoupled from the influence of the lattice. Particular focus will be put on experimental methods relying on photoelectric effect and photoelectron spectroscopy. In all experiments, we took advantage of one or more specific properties of HHG and FEL sources, such as controllable chirp, to study laser dressed states in helium, variable polarization, to study electronic properties of iron-based pnictides and ultrashort pulses (< 10 fs) to study the purely electronic dynamics in transition metal dichalcogenides.
On the other hand, the study of the interface between a molecule and a topological insulator revealed some intrinsic limitations and physical drawbacks of the technique, such as spurious effects originating from the high power pulses, like multiphoton absorption and the space charge effect, or the reduction of experimental resolution when pushing for shorter and shorter pulse durations. Some disadvantages are also connected to the current state-of-the-art in the field of ultrashort laser systems, where a trade-off needs to be found between repetition rate and laser power.
Finally, state-of-the-art experiments based on the ability to generate ultrashort pulses carrying orbital angular momentum in visible, near-infrared as well as extreme UV range will be presented. The use of these pulses opens the door to the investigation of new physical phenomena, such as probing magnetic vortices using extreme ultraviolet light from a free-electron laser or imprinting the spatial distribution of an ultrashort infrared pulse carrying orbital angular momentum onto a photoelectron wave packet. Ključne besede: ultrafast lasers, two-color experiments, photoemission, high-order harmonic generation, free-electron lasers, hot-electrons dynamics, surface science, pump-probe photoemission, ultraviolet photoemission, orbital angular momentum Objavljeno v RUNG: 02.12.2020; Ogledov: 3843; Prenosov: 112
Celotno besedilo (19,78 MB) |
29. MAST, master modul in art, science and technology : podMAST - podcasts in Art, Science and TechnologyPeter Purg, Lange TeenaOpis: podMAST is a series of open conversations among relevant voices from the crossings of Art, Science and Technology. Springing from an apparent need for (archiving and reflecting) in-depth knowledge about this timely crossover, it shall remain publicaly accessible to incite dialog with other interested practitioners and thinkers. Also it is to serve as study material for the newly developed international Master Module in Art, Science and Technology (MAST) of the project www.mastmodule.eu. Ključne besede: Art, Science, Technology, discussion, conversation, podcast, practitioner, theory, practie, critical Objavljeno v RUNG: 20.10.2020; Ogledov: 2587; Prenosov: 0 Gradivo ima več datotek! Več... |
30. MAST Education and Policy Workshop : Hybrid Interfacing Academydruga izvedena dela Opis: he key aim was to discuss the potentials of the Art-Science-Technology blend in higher education for pedagogy, research and especially radical innovation. The workshop identified assets among the participants, apply them to discerned needs and opportunities, in order to prototype both formal and non-formal implementation formats for a common European future in A-S-T education. The workshop included primarily academics as well as policy-makers, including the student's view and employers from a broad range of CCIs including the NGO sector. The workshop explored the viability of policy support and potential change to instigate a positive integration of the A-S-T innovation methodology.
SPEAKERS:
Peter Friess – Future Media, Social Network Innovation, Science-Technology-Arts / Media Policy, European Commission, DG Connect, Brussels, Belgium
Sanja M. Bojanič – University of Rijeka, Academy of Applied Arts, professor and vice-dean, executive director of CAS SEE, Croatia
Christophe De Jaeger – Director GLUON, BOZAR Programme Manager BOZAR Art & Research, Brussels, Belgium
Jana Javornik – Director at the Higher Education Directorate, Ministry of Education, Science and Sport, Slovenia
Olivera B. Sretenovič – University of Arts in Belgrade, Faculty of Applied Arts in Belgrade, Serbia
Sašo Sedlaček – Vice-dean for R&D at Academy of Fine Arts, University of Ljubljana, Slovenia
Peter Purg – MAST project lead, University of Nova Gorica School of Arts, Slovenia (workshop moderator)
Facilitated by prof. Peter Purg, PhD, Akademija umetnosti Univerze v Novi Gorici
Location: Live on Mast Facebook page from Kersnikova Institute, Ljubljana Ključne besede: education, policy, innovation, art, science, technology, European Objavljeno v RUNG: 08.10.2020; Ogledov: 2508; Prenosov: 0 Gradivo ima več datotek! Več... |