322,876 research outputs found
Early detection of cyanotoxin threat in freshwater bodies by quantitative PCR
No full textIncreased frequency of cyanobacterial blooms, caused by
rising temperatures and eutrophication, is creating a growing need for
reliable methods for early cyanotoxin threat detection in water bodies.
Current methods are time-consuming and sensitive to taxonomic
inconsistencies. On top of that, they only enable detection of potentially
toxin-producing cells when they have already multiplied to a relatively
large number. To develop a tool for earlier detection of potentially toxic
cyanobacterial strains, we are using qPCR to target genes involved in
crucial parts of cyanotoxin synthesis. Detection and quantification of
these genes, if incorporated in regular monitoring, might serve as an
early warning in case of increased potential for cyanotoxin production.
Toxins and genes of interest in this study are microcystins (mcyE),
saxitoxins (sxtA) and cylindrospermopsins (cyrJ). The analyses will be
carried out on 28 phytoplankton and 23 phytobenthos samples from 15
different freshwater bodies in Slovenia. This way we will include also
understudied benthic cyanobacteria and their ability to produce toxic
metabolites. Results will be compared with taxa list obtained by
traditional microscopic identification methods and with cyanotoxin
content evaluated by LC-MS/MS. The study has a potential to prepare
the ground for improving current monitoring programs by
complementing them with highly sensitive molecular methods. This can
provide more in-depth information about dynamics of toxic
cyanobacterial populations in water bodies and thus help with adopting
appropriate mitigation strategies
ALOJZIJ REMEC\u27S DRAMATIC PIECES
Get PDFAlojzij Remec je eden manj raziskanih in opaznih predstavnikov slovenskega ekspresionizma. Spada med slovenske književnike, ki so v novih stilnih pojavitvah videli priložnosti za razvoj slovenske literature in s tem kulture slovenstva. Kljub precejšnjemu odmevu tragedije Magda, njeni aktualnosti, nepomirljivosti nasprotij med konzervatizmom in liberalizmom, je večina njegovih besedil neraziskana in zato zanimivo področje za odkrivanje novih spoznanj o začetkih razvoja sodobne slovenske dramatike. Vprašanje zabavnega ali umetnostnega gledališča je Alojzij Remec rešil z združitvijo obojega. Usode njegovih posameznikov so podobe življenja številnih po deželi. Življenje malega človeka je s postavitvijo na oder postalo del umetnosti, večnosti. Njegov tip dramatike je v osnovi verističen, vendar v besedilih, na prvi pogled preprostih, najdemo globlje pomene, ki se nanašajo na bistvena vprašanja človekove eksistence. Analize in interpretacije njegovih dramskih besedil razkrivajo mesijanskega ekspresionista, toda ne zgolj zaradi zgodnjega ustvarjanja pri katoliškem ekspresionističnem gibanju ali zaradi njegovega vztrajanja v krščanski idealistični etiki, ki veleva, da naj umetnost človeka usmerja k dobremu in pravilnemu, ampak tudi zaradi približanja motivike apokaliptičnega trpljenja, ki ga pomirja obljuba novega življenja. Dramska besedila Alojzija Remca so se izkazala za pomemben vir za spoznavanje obdobja slovenskega ekspresionizma in problemsko aktualne dramatike.Alojzij Remec is one of the least researched and noticed representatives of Slovenian expressionism. He is one of the Slovenian writers, who saw an opportunity in the new stylistic appearances for the development of Slovenian literature and thereafter the Slovenian culture. Despite considerable response to the tragedy Magda, its actuality and irreconcilable contrasts between conservatism and liberalism, most of his works are left unresearched and therefore represent an interesting area to discover new ideas about the beginnings of the development of modern Slovenian drama. Alojzij Remec solved the question of entertaining or artistic theatre by combining them both. The destinies of his characters are reflections of numerous country lives. By putting the life of the ordinary person to stage it became a part of the art, a part of eternity. His type of drama is veristic in its base, but in the texts, which seem simple at first sight, we can find deeper meanings, which refer to the essential questions of human existence. Analyses and interpretations of his drama texts are revealing a messianic expressionist, but not only because of his early creation in the catholic expressionistic movement or due to his insistence in the catholic idealistic ethic, which orders that art should guide a person towards good and correctness, but as well because of the approaching of the distinctive features of apocalyptic suffering, which is calmed down by the promise of a new life. Alojzij Remec\u27s dramatic pieces proved to be an important source in the study of the period of Slovenian expressionism and the problem-relevant drama
Spolno specifične težave deklet s čustvenimi in vedenjskimi težavami in motnjami v strokovnih centrih
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Med ustvarjalnostjo in migracijami: Biografski portret umetnice in begunke Bare Remec
Get PDFThe author analyzes the life of Bara Remec as an artist, teacher, refugee, mountaineer, philanthropist, woman. The well-known painter of the Slovenian diaspora lived in Ljubljana, studied in Zagreb, and found refuge in post-war Argentina. The biography of Bara Remec is based on many sources, among which we can find only a few interviews with the artist and ego-records of her contemporaries. In addition to the methodological challenges that the author faced when writing the portrait, the focus is on lesser-known data and focal points from the painter’s life, embedded in the migration, gender, and identity issues of the period in which she lived.Avtorica v članku analizira življenje Bare Remec – umetnice, učiteljice, begunke, planinke, filantropinje, ženske, in to od otroštva in mladosti v Ljubljani ter izobraževanja v Zagrebu do begunstva in konca življenja v Barilochah v Argentini. Biografski portret sloni na številnih virih, med katerimi je le malo intervjujev z umetnico in prvoosebnih zapisov njenih sodobnikov. Poleg metodoloških izzivov med pisanjem biografskega portreta avtorica postavlja v ospredje umetničin življenjski potek, ki ga je pisala s pomočjo manj znanih podatkov o odvisnosti Bare Remec od migracije ter spolne in identitetne definiranosti njenega časa
User experience and success factors in online shopping: analyzing conversions within e-commerce shopping carts - a case study of Company X
No full textMagistrsko delo preučuje uporabniško izkušnjo in dejavnike, ki vplivajo na uspešnost nakupnega procesa v spletnih trgovinah, s poudarkom na konverzijah znotraj nakupne košarice in blagajne. Njegov cilj je bil identificirati ključne vidike, ki vplivajo na konverzije, in preučiti razlike glede na vrsto naprave, s katero uporabniki dostopajo do spletne trgovine. Empirična analiza temelji na podatkih Podjetja X, ki so bili zbrani s spletno analitiko v orodju Google Universal Analytics. Rezultati so pokazali, da so za povečanje konverzij v nakupni košarici in blagajni ključni intuitivna navigacija, jasna informacijska struktura, enostavnost uporabe, transparentnost cen, preprostost postopka plačila in varnost ter hitrost nalaganja spletnih strani. Še posebej pa je pomembna optimizacija za zaslone na pametnih telefonih, saj slednja pomaga izboljšati uporabniško izkušnjo in povečati konverzije.The master\u27s thesis examines user experience and factors influencing the success of the purchasing process in online stores, with a focus on conversions within the shopping cart. The aim was identify key aspects that influence conversions and to explore differences based on the type of device users use to access the online store. The empirical analysis is based on data from Company X, collected through web analytics using Google Universal Analytics. The results showed that key factors for increasing conversions in the shopping cart and checkout are intuitive navigation, clear information structure, ease of use, price transparency, simplicity of the payment process, and website security and loading speed. Optimizing for smartphone screens is particularly important, as it helps improve user experience and increase conversions
The impact of emoticons on susceptibility to malicious messages
Get PDFS to raziskavo je bil cilj opozoriti na nove taktike socialnega inženiringa, ki vključujejo izkoriščanje čustvene reakcije na čustvenčke (ang. emojis). Prav tako je bil cilj tudi pojasniti, zakaj je kritična ocena elektronskih sporočil vedno bolj pomembna. Diplomsko delo se osredotoča na raziskovanje vpliva psiholoških dejavnikov, kot so čustvena inteligenca in psihološke ranljivosti, na dovzetnost posameznikov za socialni inženiring, predvsem v okviru kibernetskih napadov, kot sta phishing in smishing. Socialni inženiring temelji na izkoriščanju človeških šibkosti in želja, pri čemer napadalci z manipulativnimi tehnikami pridobivajo osebne podatke ali dostop do sistemov. V zadnjem času so zlorabe še bolj prefinjene, saj se poleg tradicionalnih tehnik vedno bolj uporabljajo čustveni dražljaji, kot so čustvenčki (emojis), ki dajejo napadom bolj prijazen in zaupanja vreden videz. Rezultati raziskave kažejo na to, kako čustvenčki vplivajo na zaznano varnost in pripravljenost prejemnikov na sodelovanje, kar lahko zmanjša njihovo previdnost pri sprejemanju odločitev v digitalnem okolju. Empirični del diplomskega dela vključuje eksperiment s spletno anketo, ki preučuje vpliv čustvenčkov v zlonamernih sporočilih na vedenje prejemnikov ter preizkuša, ali uporaba teh simbolov povečuje verjetnost, da bodo prejemniki sledili navodilom napadalcev. Ugotovitve kažejo, da lahko čustvenčki pri prejemnikih vzbujajo zaupanje, zaradi česar se povečajo možnosti, da se bodo odzvali na zlonamerna sporočila.The aim of this research was to highlight new social engineering tactics involving the exploitation of emojis, and to explain why critical evaluation of emails is increasingly important. The focus of the thesis is to explore the impact of psychological factors such as emotional intelligence and psychological vulnerabilities on individuals\u27 susceptibility to social engineering, especially in the context of cyber-attacks such as phishing and smishing. Social engineering is based on the exploitation of human weaknesses and desires, whereby attackers use manipulative techniques to gain personal information or access to systems. More recently, abuse has become even more sophisticated, with the increasing use of emotional stimuli such as emojis alongside traditional techniques to give attacks a more friendly and trustworthy appearance. The results of the research show how emojis affect the perceived safety and willingness to engage of recipients, which may reduce their caution when making decisions in the digital environment. The empirical part of the thesis includes an online survey experiment that examines the impact of emoticons in malicious messages on recipients\u27 behaviour and tests whether the use of these symbols increases the likelihood that recipients will follow the instructions of attackers. The findings show that emoticons can instil trust in recipients, increasing the chances that they will respond to malicious messages
Seismic response of rectengular reinforced concrete walls connected with slabs
No full textV nalogi smo ugotavljali, kakšne so lastnosti potresnega odziva pravokotnih armiranobetonskih sten in učinek njihove povezanosti z gladkimi armiranobetonskimi etažnimi ploščami, brez gred. Tovrstne stene običajno projektiramo kot konzolne. Pri tem običajno predpostavimo, da plošče stene povezujejo le kot toge šipe na nivoju etaž, oziroma zanemarimo upogibno togost in nosilnost povezovalnih plošč, pod predpostavko, da je ta v primerjavi s stenami zanemarljivo majhna. V nalogi smo naredili parametrično študijo, s katero smo analizirali, ali je ta predpostavka upravičena in kako nanjo vplivajo različni geometrijski ter konstrukcijski parametri. V analizah smo upoštevali določila standardov Evrokod 8 in Evrokod 2. Stene smo najprej dimenzionirali na osnovi rezultatov linearne elastične modalne analize. Glede na to, da lahko s takšno analizo ugotovimo zgolj približek potresnega odziva obravnavanih konstrukcij, smo njihov potresni odziv ocenili tudi z nelinearno analizo, pri kateri smo uporabili N2 metodo. Obravnavane konstrukcije sten so predstavljale značilen izsek iz tipičnih stenastih stavb. Stene smo v enem primeru obravnavali kot konzolne, v drugem pa kot povezane. Upogibna armatura teh dveh sistemov se v obravnavanih primerih ni bistveno razlikovala, ker pri povezanih stenah znaten del prevrnitvenega momenta prevzamemo z momenti, ki jih v konstrukciji povzročajo osne sile v stenah. Zaradi različnega poteka upogibnih momentov vzdolž sten, pa so bile prečne sile dokaj različne. Posledično je bila potrebna prečna armatura v povezanih stenah pri večini primerov bistveno večja kot v konzolnih. V ploščah so bili v primeru povezanih sten upogibni momenti večinoma zelo veliki in posledično je bila potrebna razmeroma velika količina upogibne armature. Ugotovili smo tudi, da je lahko stopnja povezanosti sten le s ploščami zelo velika. Ključno vlogo pri tem ima sodelujoča širina plošče, ki se aktivira ob močnem potresnem odzivu in je lahko bistveno večja od tiste, ki jo običajno upoštevamo pri projektiranju. Ta parameter pomembno vpliva tudi na vrsto mehanizma odziva, ki se aktivira v nelinearnem območju.In the task, we determined the characteristics of the seismic response of rectangular reinforced concrete walls and the effect of their connection with reinforced concrete slabs, without beams. These types of walls are usually designed as cantilever walls. In such cases, we usually assume that the only »connection« between the walls are constraints in the horizontal direction at floor level (rigid diaphragms). In other words, we ignore the bending stiffness and load-bearing capacity of the connecting slabs, assuming that it is negligibly small compared to that of the walls. In the assignment, we made a parametric study, where we analyzed whether this assumption is justified and how it is affected by various geometric and structural parameters. In the analyses, we took into account the provisions of the standards Eurocode 8 and Eurocode 2. The walls were first dimensioned based on the results of the linear elastic modal analysis. Considering that with such an analysis we can only determine the approximation of the seismic response of the considered structures, we also evaluated their seismic response with a non-linear analysis, in which we used the N2 method. The considered wall constructions represented a characteristic part of typical wall buildings. In one case, we treated the walls as cantilever walls, and in the other as connected walls. The logitudinal reinforcement of these two systems did not differ significantly in the cases considered, because in the case of connected walls, a significant part of the overturning moment is absorbed by the moments caused in the construction by the axial forces in the walls. Due to the different redistribution of bending moments along the walls, the transverse forces were quite different. As a result, the required transverse reinforcement in connected walls were in most cases significantly greater than in cantilever walls. In the slabs, in the case of connected walls, the bending moments were mostly very large and, as a result, a relatively large amount of longitudinal reinforcement was required. We also found out that the degree of connection of walls only with the slabs can be very high. A key role in this is played by the participating width of the slab, which is activated in the case of a strong seismic response and can be significantly larger than what is usually taken into account in the design. This parameter also significantly affects the type of response mechanism that is activated in the nonlinear region
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