131. Rolling vs. seasonal PMF : real-world multi-site and synthetic dataset comparisonMarta Via, Gang Chen, Francesco Canonaco, Kaspar Rudolf Daellenbach, Benjamin Chazeau, Hasna Chebaicheb, Jianhui Jiang, Hannes Keernik, Chunshui Lin, Nicolas Marchand, 2022, original scientific article Abstract: Abstract. Particulate matter (PM) has become a major concern in terms of human health
and climate impact. In particular, the source apportionment (SA) of organic
aerosols (OA) present in submicron particles (PM1) has gained relevance
as an atmospheric research field due to the diversity and complexity of its
primary sources and secondary formation processes. Moreover, relatively
simple but robust instruments such as the Aerosol Chemical Speciation
Monitor (ACSM) are now widely available for the near-real-time online
determination of the composition of the non-refractory PM1. One of the
most used tools for SA purposes is the source-receptor positive matrix
factorisation (PMF) model. Even though the recently developed rolling PMF technique has
already been used for OA SA on ACSM datasets, no study has assessed its
added value compared to the more common seasonal PMF method using a practical
approach yet. In this paper, both techniques were applied to a synthetic
dataset and to nine European ACSM datasets in order to spot the main output
discrepancies between methods. The main advantage of the synthetic dataset
approach was that the methods' outputs could be compared to the expected
“true” values, i.e. the original synthetic dataset values. This approach
revealed similar apportionment results amongst methods, although the
rolling PMF profile's adaptability feature proved to be advantageous, as it
generated output profiles that moved nearer to the truth points. Nevertheless,
these results highlighted the impact of the profile anchor on the solution,
as the use of a different anchor with respect to the truth led to
significantly different results in both methods. In the multi-site study,
while differences were generally not significant when considering year-long
periods, their importance grew towards shorter time spans, as in intra-month
or intra-day cycles. As far as correlation with external measurements is
concerned, rolling PMF performed better than seasonal PMF globally for the ambient
datasets investigated here, especially in periods between seasons. The results of this
multi-site comparison coincide with the synthetic dataset in terms of
rolling–seasonal similarity and rolling PMF reporting moderate improvements. Altogether, the
results of this study provide solid evidence of the robustness of both
methods and of the overall efficiency of the recently proposed rolling PMF
approach. Keywords: particulate matter, synthetic dataset comparison, source apportionment, organic aerosols Published in RUNG: 10.05.2024; Views: 347; Downloads: 4 Full text (2,03 MB) This document has many files! More... |
132. Submicron aerosol pollution in Greater Cairo (Egypt) : a new type of urban haze?Aliki Christodoulou, Spiros Bezantakos, Efstratios Bourtsoukidis, Iasonas Stavroulas, Michael Pikridas, Konstantina Oikonomou, Minas Iakovides, Salwa K. Hassan, Mohamed Boraiy, Mostafa El-Nazer, 2024, original scientific article Keywords: megacity, submicron aerosols, urban haze, Greater Cairo, hygroscopic aerosols, ammonium chloride Published in RUNG: 10.05.2024; Views: 292; Downloads: 2 Full text (7,34 MB) This document has many files! More... |
133. Borderless aeasthetics : the new uglySandra Jovanovska, 2024, master's thesis Abstract: Through the lens of ugliness, the purpose of this Master’s thesis is to explore a potential model of a new unrestricted aesthetics. I, hereby, refer to an aesthetics beyond its canonical order, an individualistically-driven scheme of standards or perhaps no standards at all. All can be simplified with Eco’s quote on the opposition of the beautiful and the ugly: ’A beautiful nose shouldn’t be longer than that or shorter than that, on the contrary, an ugly nose can be as long as the one of Pinocchio, or as big as the trunk of an elephant, or like the beak of an eagle, and so ugliness is unpredictable, and offers an infinite range of possibility’. While the aesthetics of beauty has already positioned framework of rules in regards to proportion, symmetry, and harmony, the aesthetics of ugliness has no particular guidelines and limitations whatsoever. Unlike the beautiful, what we perceive as ugly doesn’t have its lawfulness, because for a long time in the history of art, ugliness was just the opposite face of beauty. As a consequence, the ugly embodies a big category of undetermined standards in visual arts and culture, which leads to it becoming a large unmapped territory of boundless autonomy. The ugly is in that context the key to facing and unleashing our phenomenological fears of bleak dark deformed realities that lie unchallenged and unaddressed on account of ugliness’ taboo status. Thus, when familiarised, I believe ugliness in art has a powerful impact, a quality that we have to yet begin to understand to get a full image of ourselves, for if we rely on beauty, as we did for such a long time in history, we are depriving ourselves of a true holistic proportion in art. Keywords: art, man, ugliness, new, aesthetics, beauty, artist, time, image, Dada, history, context, different, body, personal, culture, transform, political, philosophy, standard, perspective. Published in RUNG: 10.05.2024; Views: 329; Downloads: 6 Full text (2,86 MB) This document has many files! More... |
134. Increase in secondary organic aerosol in an urban environment : Increase in secondary organic aerosol in an urban environmentMarta Via, Maria Cruz Minguillon, Cristina Reche, Xavier Querol, Andrés Alastuey, 2021, original scientific article Abstract: The evolution of fine aerosol (PM1) species as well as the contribution of potential sources to the total organic aerosol (OA) at an urban background site in Barcelona, in the western Mediterranean basin (WMB) was investigated. For this purpose, a quadrupole aerosol chemical speciation monitor (Q-ACSM) was deployed to acquire real-time measurements for two 1-year periods: May 2014–May 2015 (period A) and September 2017–October 2018 (period B). Total PM1 concentrations showed a slight decrease (from 10.1 to 9.6 μgm�3 from A to B), although the relative contribution of inorganic and organic compounds varied significantly. Regarding inorganic compounds, SO42- , black carbon(BC) and NH4+ showed a significant decrease from period
A to B (21 %, 18% and 9 %, respectively), whilst NO3- concentrations were higher in B (8 %). Source apportionment
revealed OA contained 46% and 70% secondary OA (SOA) in periods A and B, respectively. Two secondary oxygenated OA sources (OOA) were differentiated by their oxidation status (i.e. ageing): less oxidized (LO-OOA) and more oxidized (MO-OOA). Disregarding winter periods, when LO-OOA production was not favoured, LO-OOA transformation into MO-OOA was found to be more effective in
period B. The lowest LO-OOA-to-MO-OOA ratio, excluding winter, was in September–October 2018 (0.65), implying an accumulation of aged OA after the high temperature and solar radiation conditions in the summer season. In addition to temperature, SOA (sum of OOA factors) was enhanced by exposure to NOx-polluted ambient and other pollutants, especially to O3 and during afternoon hours. The anthropogenic primary OA sources identified, cooking-related
OA (COA), hydrocarbon-like OA (HOA), and biomass burning OA (BBOA), decreased from period A to B in both absolute concentrations and relative contribution (as a whole, 44% and 30 %, respectively). However, their concentrations and proportion to OA grew rapidly during highly polluted episodes. The influence of certain atmospheric episodes on OA sources was also assessed. Both SOA factors were boosted with long- and medium-range circulations, especially those coming from inland Europe and the Mediterranean (triggering mainly MO-OOA) and summer breeze-driven regional circulation (mainly LO-OOA). In contrast, POA was
enhanced either during air-renewal episodes or stagnation anticyclonic events. Keywords: aerosol, organic aerosol, source apportionment, PM1, particulate matter Published in RUNG: 10.05.2024; Views: 316; Downloads: 3 Full text (4,93 MB) This document has many files! More... |
135. Analiza odnosov med filmskimi pari : diplomsko deloBlaž Štolar, 2024, undergraduate thesis Abstract: Moj diplomski kratki igrani film Gostja (2022) temelji na odnosu dveh žensk, ki se srečata po naključju in začneta živeti skupaj v istem stanovanju. Medtem ko ima lastnica stanovanja dobre namene, se druga trudi, kako bi njeno gostoljubje čimbolj izkoristila.
V svoji diplomski nalogi preučujem odnose med pari likov v štirih filmih različnih avtorjev. Med obravnavanimi filmi je tudi moj diplomski film. Izpostavim po en par likov iz vsakega dela in raziščem odnose in dinamike med njimi z lastnim raziskovanjem in s pomočjo kritik.
V nalogi opišem karakterje posameznih likov in preko dogajanja v filmih raziskujem, kako in zakaj se njihova osebnost izraža preko dejanj, vedenja, videza. Nato raziščem odnose med liki z opisovanjem režiserjevega pristopa – analiziram nekaj ključnih prizorov, ki so za like in razvoj dinamik med njimi najpomembnejši. Keywords: odnosi, filmski pari, dinamika, analiza, prizori, film, diplomske naloge Published in RUNG: 08.05.2024; Views: 453; Downloads: 7 Full text (1,79 MB) This document has many files! More... |
136. Izražanje duševnih motenj in bolezni pri YouTube ustvarjalcih, animiranih likih in v video igrahEva Sara Krivec, 2024, undergraduate thesis Abstract: Diplomsko delo vsebuje nekatera dognanja o duševnem zdravju, duševnih motnjah, nevrodivergenci in njihovem vplivu na umetnost. Omenjene so različne duševne motnje in raziskanost le-teh v zadnjih dvajsetih letih ter podani nekateri primeri sodobnih animatorjev, ki se z njimi spopadajo. V nalogi so izpostavljeni izbrani sodobni umetniki, ki so o svojih motnjah in boleznih šele nedavno spregovorili za javnost, torej v času, ko je medicinsko področje duševnega zdravja že dodobra raziskano.
Primeri omenjenih motenj v sodobnih medijih, kot so video igre in animirani filmi, so še posebej pomemben vzor za mlajšo generacijo, predvsem najstnike, saj so prikazani kot nekaj sprejemljivega, vsakdanjega, ne kot tabu tema, vredna obsojanja.
Menim, da se je s tovrstno tematiko potrebno podrobneje seznaniti, saj je vedno pogosteje vkomponirana v sodoben način življenja in tudi medijsko izpostavljena. Keywords: animacija, duševno zdravje, duševne motnje, video igre, animirani liki, liki iz stripov, sodobni umetniki in animatorji Published in RUNG: 08.05.2024; Views: 372; Downloads: 9 Full text (2,90 MB) This document has many files! More... |
137. |
138. |
139. Slowenische Museen in Zeiten von Covid-19Kaja Širok, 2021, polemic, discussion, commentary Abstract: Durch die Corona-bedingten Schließungen der Museen ist der Bevölkerung in vielen Ländern Europas wieder bewusst geworden, was sie alles an ihren Museen haben. Nicht so in Slowenien, wo ebendiese Schließung teilweise als Ausrede ge- nutzt wird, den Stellenwert des kulturellen Erbes im Land zu schmälern. Doch die Museen nehmen das nicht widerstandslos hin und setzen sich mit aller Kraft dafür ein, dass sie weiterhin relevant bleiben und verantwortungsvoll arbeiten können Keywords: muzeji, Covid, Muzej novejše zgodovine Slovenije Published in RUNG: 08.05.2024; Views: 333; Downloads: 0 This document has many files! More... |
140. |