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A remark on a result on odd colorings of planar graphs
No full textA proper -coloring of a graph is said to be odd if every non-isolated vertex has a color that appears an odd number of times on its neighborhood. Miao et al. (2024) [2] claimed that every planar graph without adjacent -cycles is odd -colorable and every triangle-free planar graph without intersecting -cycles is odd -colorable. Here, we point out that their published proof contains a fundamental flaw which affects the validity of the main results
Comparison of the fabrication of classic and digital oral appliances for the treatment of obstructive sleep apnea
No full textUvod: Obstruktivna apneja v spanju je ena izmed najpogostejših motenj dihanja v spanju, ki močno vpliva na kakovost našega življenja. Je kronična bolezen, ki jo zaznamujejo ponavljajoče se prekinitve dihanja med spanjem zaradi delne ali popolne zapore zgornjih dihalnih poti. Pojavlja se pri vseh starostih, vendar najpogosteje pri odraslih s čezmerno telesno težo. Za zdravljenje so na voljo tri kategorije ukrepov: vedenjske spremembe, naprave, ki jih pacient lahko nosi, in kirurške. Eden izmed ustnih aparatov, ki se uporabljajo za zdravljenje, je aparat za napredovanje spodnje čeljusti. Delujejo tako, da z mehanskim pomikom spodnje čeljusti naprej povečajo prostornino zgornjih dihalnih poti ter s tem zmanjšajo njihovo možnost za kolaps med spanjem. Namen: Glavni namen diplomske naloge je primerjati laboratorijsko delo po fazah izdelave klasičnega in digitalnega aparata. Predstavili bomo prednosti in slabosti, učinkovitost ter možne neželene učinke ob redni uporabi ustnih aparatov. Izdelali bomo aparat po klasični metodi z uporabo globokega vleka plastične folije, digitalni aparat pa bomo oblikovali v programu za računalniško oblikovanje 3shape in ga nato 3D-tiskali. Metode dela: V diplomskem delu bomo uporabili deskriptivno metodo s pregledom strokovne in znanstvene literature v slovenskem in angleškem jeziku. Uporabili bomo iskalnike Google, PubMed, Google Učenjak in ScienceDirect, v katerih bomo s ključnimi besedami iskali članke in vire. Uporabili bomo opisno oz. deskriptivno metodo, metodo proučevanja, izdelali bomo tudi dva ustna aparata za zdravljenje spalne apneje in naredili časovni in stroškovni obračun izdelave. Rezultati: Iz prebranih študij smo ugotovili, da je najbolj sprejemljiva in učinkovita metoda za zdravljenje obstruktivne spalne apneje (OSA) uporaba ustnih aparatov. Po meri izdelani in dvodelni aparati se dolgoročno izkažejo kot najbolj sprejemljivi. Za izdelavo ustnega aparata po klasični metodi smo potrebovali 135 minut in 59,45 evra za laboratorijske stroške. Pri izdelavi po digitalni metodi pa smo potrebovali 260 minut in 4,90 evra za laboratorijske stroške. Razprava in zaključek: Obstruktivna spalna apneja je resna, pogosto nediagnosticirana motnja spanja, ki lahko vodi do hudih srčno-žilnih in presnovnih bolezni. Blage oblike se zdravijo z življenjskim slogom, hujše najučinkoviteje z napravo CPCA, v nekaterih primerih pa se svetuje kirurško zdravljenje. Kot bolj sprejemljiva alternativa se uporabljajo ustni aparati, med katerimi so najučinkovitejši po meri izdelani dvodelni aparati. Primerjava klasične in digitalne izdelave je pokazala, da je aparat Silensor hitrejši za izdelavo, vendar dražji in manj primeren za paciente z močnimi čeljustnimi mišicami. Digitalno izdelan 3D-natisnjen aparat je trdnejši, bolj obstojen in primeren za zahtevnejše primere, čeprav za izdelavo zahteva več časa in znanja.Introduction: Obstructive sleep apnea is one of the most common sleep-related breathing disorders and significantly affects our quality of life. It is a chronic condition characterized by repeated interruptions of breathing during sleep due to partial or complete blockage of the upper airway. It occurs at all ages but is most common in overweight adults. There are three categories of treatment options: behavioral changes, patient-worn devices, and surgical interventions. One of the oral appliances used in treatment is the mandibular advancement device. These devices work by mechanically moving the lower jaw forward, thereby increasing the volume of the upper airway and reducing the likelihood of its collapse during sleep. Purpose: The main purpose of this thesis is to compare the laboratory procedures involved in the fabrication of a conventional and a digital oral appliance. We will present the advantages and disadvantages, effectiveness, and potential side effects associated with regular use of oral appliances. A conventional appliance will be made using the traditional method of thermoforming a plastic foil, while the digital appliance will be designed using the 3Shape CAD software and subsequently 3D printed. Methods: In this thesis, we will use the descriptive method by reviewing professional and scientific literature in both Slovene and English. We will use search engines such as Google, PubMed, Google Scholar, and ScienceDirect to find articles and sources using relevant keywords. A descriptive and analytical approach will be applied, and we will also fabricate two oral appliances for the treatment of sleep apnea. Additionally, we will conduct a time and cost analysis of the production of both appliances. Results: Based on the studies reviewed, we found that the most acceptable and effective method for treating obstructive sleep apnea (OSA), is the use of an oral appliance. Custom-made and duoblock devices have proven to be the most acceptable in the long term. For the fabrication of the device using the conventional method, we needed 135 minutes and laboratory costs of 59,45€. For the digital fabrication method, we needed 260 minutes and laboratory costs of 4,90€. Discussion and conclusion: Obstructive sleep apnea is a serious and often undiagnosed sleep disorder that can lead to severe cardiovascular and metabolic diseases. Mild forms are treated through lifestyle changes, while more severe cases are most effectively treated with a CPCA device, and in some cases surgical treatment is recommended. As a more acceptable alternative, oral appliances are used, with custom-made two-piece devices proving to be the most effective. A comparison of conventional and digital fabrication showed that the Silensor device is faster to produce but more expensive and less suitable for patients with strong jaw muscles. The digitally produced 3D-printed appliance is sturdier, more durable, and suitable for more demanding cases, although it requires more time and expertise to manufacture
Inferring a mobile user’s valence and arousal through on-screen text analysis
No full textUnderstanding a user’s emotional state is critical for building adaptive and intelligent mobile applications. In this paper we investigate the feasibility of inferring valence and arousal from the text displayed on smartphone screens. We developed AV-Sense, a mobile application that combines the Experience Sampling Method, a technique that prompts users to report their feelings in the moment, with passive screentext logging. In a two-week study with 12 participants, we collected 787 ESM responses and over 650,000 screentext entries. Data analysis revealed meaningful temporal and individual patterns in reported afect. We then explored the use of large language models to predict valence and arousal from screentext, but results indicated limited predictive power in this setting. Our indings highlight both the potential and current challenges of screentext-based afect inference, laying the groundwork for future research on emotion-aware applications and naturalistic psychological studies
Modeling the surface hardness of metal materials produced by 3D selective laser melting
No full textThe present study introduces a novel approach for pattern recognition to analyze the surface hardness of metal parts made by 3D selective laser melting (SLM). A printed part’s hardness is further influenced by post-processing, printing parameters, and post-print material handling. Layer by layer, material is deposited in 3D printing, sometimes referred to as additive manufacturing, to turn a digital design into a tangible product. More complex and adaptable designs are possible because 3D printing adds material rather than removes it, in contrast to conventional manufacturing techniques (such as machining or molding). The current work models the surface hardness of 3D selective laser melting of metal materials using genetic programming and network theory. To assess the hardness of 3D selective laser melting of metal materials, we introduce a novel pattern recognition technique. We apply fractal geometry analysis to determine the complexity of 3D selective laser melting of metal materials
Social Commerce and the Chinese Consumer in the Digital Age: A Case Study of the Xiaohongshu Platform
No full textDiplomsko delo obravnava socialno e-trgovanje na Kitajskem in potrošništvo v digitalni dobi skozi analizo platforme Xiaohongshu. Platforma Xiaohongshu združuje elemente zabave in socialnih omrežij z e-trgovanjem. To je ena izmed številnih takšnih platform na Kitajskem, kjer je socialno e-trgovanje že ustaljena oblika e-trgovanja. Osrednje raziskovalno vprašanje diplomskega dela je: Kateri so tisti kulturni in družbeni dejavniki, ki vplivajo na uspešnost platforme Xiaohongshu med milenijskimi potrošniki? Katere njihove potrebe in želje nagovarja ter s kakšnimi metodami?
S pomočjo analize strokovne literature, opravljenih analiz poročil svetovalnih podjetij in statističnih podatkov sem kot najpomembnejše dejavnike, ki vplivajo na uspešnost platforme, identificirala: milenijsko generacijo kot gonilo kitajske potrošnje na spletu, pomembnost skupnosti v kitajski družbi ter pomembnost zaupanja v kitajskem potrošništvu. Xiaohongshu potrebe in želje potrošnikov nagovarja s pomočjo treh tržnih strategij: z željo po grajenju skupnosti nagovarja z vzpostavitvijo interaktivnega ustvarjanja vsebin s strani uporabnikov, potrebo po izgradnji zaupanja na spletu nagovarja s strategijo trženja od ust do ust z uporabo vpliva ključnih mnenjskih voditeljev ali \u27KOL\u27. S pomočjo strategije ciljnega pozicioniranja je platforma lahko načrtno zajela potrošniške vzorce milenijske generacije. V diplomsko delo sem vključila tudi vodnik po platformi, ki bo pomagal pri vizualizaciji ugotovitev.The thesis deals with social commerce in China and consumerism in the digital age through the analysis of the Xiaohongshu platform. The Xiaohongshu platform combines elements of entertainment and social networking with e-commerce. It is one of many such platforms in China, where social commerce is already an established form of e-commerce. The central research question of the thesis is: What are the cultural and social factors that influence the success of the Xiaohongshu platform among millennial consumers? What are consumer\u27s needs and desires and how are they addressed by the platform?
Through a literature analysis, analysis of consulting companies\u27 reports and statistical reports, I identified the following as the most important factors influencing the platform\u27s success: the millennial generation as a driver of Chinese online consumption, the importance of community in Chinese society and the importance of trust in Chinese consumerism. Xiaohongshu addresses the needs and desires of consumers through three marketing strategies: The desire to build community is addressed by establishing interactive content creation by users, while the need to build trust online is addressed through a word-of-mouth marketing strategy using the influence of key opinion leaders or \u27KOL\u27 . With the help of a target-positioning strategy, the platform has been able to systematically capture the consumer patterns of the millennial generation. A platform guide is added to the thesis to help visualize the findings
Digitalization Of Luxury Brands In Japan
No full textDiplomsko delo obravnava proces digitalizacije trga prestižnih znamk na Japonskem, kjer je delež integracije digitalnih platform v poslovanje prestižnih znamk manj kot 10 %. Internetna penetracija Japonske med tem znaša več kot 90 %, spletne nakupe pa opravlja kar 80 % japonskega prebivalstva. Namen diplomskega dela je proučiti zgodovinsko ozadnje in kulturne ter družbe dejavnike, ki vplivajo na način potrošnje prestižnih znamk v sodobni japonski družbi. Osrednji raziskovalni vprašanji diplomskega dela sta: Kakšni so družbeni in kulturni dejavniki, ki vplivajo na sodobno japonsko potrošnjo prestižnih znamk? Kateri dejavniki vplivajo na proces digitalizacije prestižnih znamk na Japonskem?
S pomočjo analize strokovne literature, opravljenih analiz poročil svetovalnih podjetij in statističnih podatkov sem kot družbene in kulturne dejavnike, ki vlivajo na potrošnjo prestižnih znamk na Japonskem identificirala potrošniško dinamiko milenijske generacije, zrel trg prestižnih znamk, ki vpliva na racionalno potrošnjo, pomembnost izražanja individualnosti v kontekstu konfucijanske kolektivistične tradicije, pomembnost veleblagovnic kot oder potrošnje prestižnih znamk ter vse večjo priljubljenost družbenih omrežij in spletnega nakupovanja. Na proces digitalizacije japonskega trga prestižnih znamk vplivajo pomembnost veleblagovnic kot glavni prodajni medij, nerazviti trg spletnega poslovanja prestižnih znamk ter nerazvita brezgotovinska finančna tehnologija.The thesis deals with the process of digitalization of the market of luxury brands in Japan, where the share of integration of businesses on digital platforms is less than 10%. Japan\u27s internet penetration, meanwhile, accounts for more than 90%, and online shopping is conducted by more than 80% of Japan\u27s population. The purpose of this thesis is to study the historical background and cultural and societal factors that influence the way luxury brands are consumed in modern Japanese society. The central research questions of the thesis are: What are the social and cultural factors influencing modern Japanese consumption of luxury brands? What factors influence the digitization process of luxury brands in Japan?
Through a literature analysis, analyzes of consulting companies\u27 reports and statistical reports, I identified the following as the most important factors influencing modern Japanese consumption of luxury brands: the millennial generation\u27s consumer dynamics, the mature market of luxury brands influencing rational consumption, the importance of expressing individuality in the context of Confucian collectivist tradition, the importance of department stores as a stage of consumption, and the growing popularity of social media and online shopping. The digitalization process of the Japanese luxury market is influenced by the importance of department stores as the main sales medium, by the underdeveloped online business integration of luxury brands, and by the underdeveloped digital financial technology lanscape present in Japan
The contribution of Janez Orešnik to the evolution of Slovene language consulting
No full textV članku je predstavljen prispevek Janeza Orešnika k razvoju jezikovnega svetovanja v slovenskem prostoru. Njegovo delo temelji na izkušnjah skandinavskih uradov za jezik, kar je podrobno predstavil v knjigi Uradi za jezik v Skandinaviji (1995). Predavanja o delovanju teh uradov so sredi 90. let navdihnila študente za ustanovitev prve slovenske spletne jezikovne svetovalnice ŠUSS. Orešnik je zagovarjal idejo demokratičnega jezikovnega svetovanja, ki ne ponuja enoznačnih odgovorov, temveč uporabniku predstavi razlago in argumente za različne jezikovne možnosti. Poudarjal je pomembnost znanstveno utemeljenih, a preprostih razlag, upoštevanje jezikovnih zvrsti ter vključevanje zgodovinskih in primerjalnih jeziko(slov) nih podatkov. Njegova načela se danes uresničujejo pri delu Jezikovne svetovalnice Inštituta za slovenski jezik Frana Ramovša, ki nadaljuje tradicijo jezikovnega svetovanja in povezovanja z uporabniki.The article highlights the influence of Janez Orešnik on the development of language con-sulting in Slovenia. His work draws on the experiences of Scandinavian language agencies, which he thoroughly presented in his book Uradi za jezik v Skandinaviji (Language Agencies in Scandinavia, 1995). His lectures on the functioning of these agencies inspired the establishment of the first Slovenian online language consulting platform, ŠUSS, in the mid-1990s. Orešnik advocated for the concept of democratic language consulting, which avoids provid-ing single, definitive answers. Instead, it offers users explanations and arguments for various language options, allowing them to make informed decisions. He emphasised the importance of scientifically grounded yet simple explanations, the consideration of language varieties, and the inclusion of historical and comparative linguistic data. His principles are reflected in the Language Consulting Service (Fran Ramovš Institute of the Slovenian Language), which continues the tradition of language consulting and engaging with language users
VALIDITY AND RELIABILITY OF FLYWHEEL SQUAT TEST FOR OLDER ADULTS
No full textNamen magistrskega dela je bil preveriti merske karakteristike testa Počepanja na inercijski napravi pri starejših odraslih. Preverjali smo medobiskovno zanesljivost in veljavnost rezultatov testa, in sicer v primerjavi z že uveljavljenima funkcionalnima testoma Vstani in pojdi ter Vstajanje s stola, ter z rezultati moči iztegovalk in upogibalk kolena, izmerjenimi z izokinetičnim dinamometrom. V raziskavo je bilo vključenih 30 preizkušancev, starih med 54 in 81 let (8 moških in 22 žensk). Preizkušanci so testiranja opravili trikrat: prvi dve testiranji sta bili izvedeni v razmaku enega tedna, tretje pa deset tednov po drugem testiranju. Na vsakem obisku so v naključnem zaporedju izvedli štiri gibalne teste: Počepanje na inercijski napravi, Iztegovanje kolena na izokinetični napravi, Vstani in pojdi ter Vstajanje s stola, da bi se izognili morebitnemu sistematičnemu vplivu utrujenosti. Rezultati so pokazali, da je test Počepanja na inercijski napravi pri starejših odraslih zanesljiv tako po meri relativne zanesljivosti (intraklasni korelacijski koeficient ICC2.1) kot tudi absolutne zanesljivosti (koeficient variance, CV). Po kriteriju ICC2.1 smo ugotovili dobro do odlično zanesljivost (ICC2.1 > 0,75CV 0,75CV < 10%) was observed for three squat mechanical variables (velocity, force, and power) with velocity being the most and power the least reliable. The highest reliability for velocity was observed at a load of 0,075 kg∙m² (ICC2.1 = 0,89), while the lowest reliability was found for power at a load of 0,025 kg∙m² (ICC2.1 = 0,76). Validity analysis showed that the Flywheel Squat test is a valid assessment in older adults, exhibiting statistically significant correlations with the established functional tests Timed Up and Go and Five Times Sit-to-Stand. The strength of these correlations increased with the number of visits, highlighting the importance of familiarization with the test protocol. The Flywheel Squat test also showed significant correlations with isokinetic strength measurements, with high correlations observed between mechanical variables in the concentric phase of the squat with knee flexor and extensor strength, and moderate to high correlations between mechanical variables in the eccentric phase of the squat with knee flexor and extensor strength, at both 60°/s and 180°/s. In conclusion, the Flywheel Squat is a complex but useful and valid test for assessing lower extremity strength and power in older adults. Initial familiarization and introductory repetitions are necessary to ensure valid and reliable results. Our findings underscore that familiarization with the test protocol is a crucial component of both training and assessment on flywheel devices among the older adults, given the technical demands and accentuated eccentric loading, which may be particularly challenging for this age group
Čustveni odzivi na marginalne spolne identitete v dramatiki Vinka Möderndorferja
No full textPrispevek analizira čustva in čustvene odzive kot družbeno kodirane in kulturno pogojene prakse znotraj čustvenih režimov v izbranih dramskih besedilih Vinka Möderndorferja Transvestitska svatba, Limonada slovenica, Solze in kri ter Sestre. V središču je analiza čustvenih odzivov na dramske like s pripisano marginalno oz. neheteronormativno spolno identiteto, ki v Möderndorferjevih besedilih delujejo kot središče čustvene napetosti.This article analyzes emotions and emotional responses as socially coded and culturally conditioned practices within the framework of emotional regimes using selected plays by Vinko Möderndorfer: Transvestitska svatba (The Transvestite Wedding), Limonada slovenica (Lemonade Slovenica), Solze in kri (Tears and Blood), and Sestre (Sisters). The analysis centers on the emotional reactions triggered by dramatic characters with ascribed marginal or non heteronormative gender identities, which function as the focal point of emotional tension in Möderndorfer’s works
Afektivni učinki v romanih Andreja Blatnika
No full textPrispevek preučuje čustva in afektivne izkušnje v posameznih romanih Andreja Blatnika oz. afektivno interakcijo kulturnih praks in temeljnih determinant časa, v katerem so romani nastali. S fikcionalizacijo izkustva tega časa skozi različne žanrske variacije (metafikcijske, potopisne, distopijske itn.) so Blatnikovi romani prikazani s posebnim poudarkom njihovih čustvenih in afektivnih potencialov. Od prvega Blatnikovega romana, Plamenice in solze, ki ga opredeljuje samozadostna besedilna resničnost, do zadnjega, Trg osvoboditve, povsem potopljenega v resnični propad starega sveta, so prisotne različne strategije čustvenega angažmaja s svetom, ki ga prikazujejo.This article examines emotions and affective experiences in Andrej Blatnik’s novels, the affective interaction between cultural practices, and the fundamental determinants of the period in which these novels were written. By fictionalizing the experience of this time through various genre variations (metafictional, travelogue, dystopian, etc.), Blatnik’s novels are presented with a special emphasis on their emotional and affective potential. From Blatnik’s first novel, Plamenice in solze (Torches and Tears), defined by selfsufficient textual reality, to his last, Trg osvoboditve (Liberation Square), completely immersed in the real collapse of the old world, one can trace various strategies of emotional engagement with the world they depict