1. Information technology for business sustainability : a literature review with automated content analysisDoroteja Vidmar, Marjeta Marolt, Andreja Pucihar, 2021, review article Abstract: An extremely dynamic and fast-moving environment is pushing enterprises to continuous innovation and change. Managing sustainability in a digitalized environment seems to be of central importance for policy makers, as information technologies (IT), in combination with sustainability objectives, offer a wide range of opportunities for positive change. Through a systematic literature review and the application of automated content analysis, this study aims to provide insights into the latest research in the interdisciplinary field of sustainable business models and information systems. The results of the analysis, combined with a researcher’s perspective, suggest that IT, which can be used to achieve sustainability objectives, are already in place and have an infinite number of potential implications in the future. The results suggest that positive economic, social, and environmental changes can be achieved by using IT as long as they are used to identify unsustainable actions and enable positive change. The analysis of research trends revealed a discrepancy between the research in the European Union and the rest of the world and pointed to several avenues for future research.
Keywords: information technology, enterprise, business model, sustainability, business sustainability, sustainable business model, IT, IS, BM, SBM
Published in DKUM: 11.12.2024; Views: 0; Downloads: 0
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2. Network representation of multicellular activity in pancreatic islets : Technical considerations for functional connectivity analysisMarko Šterk, Yaowen Zhang, Viljem Pohorec, Eva Paradiž, Jurij Dolenšek, Richard K. P. Benninger, Andraž Stožer, Vira Kravets, Marko Gosak, 2024, original scientific article Abstract: Within the islets of Langerhans, beta cells orchestrate synchronized insulin secretion, a pivotal aspect of metabolic homeostasis. Despite the inherent heterogeneity and multimodal activity of individual cells, intercellular coupling acts as a homogenizing force, enabling coordinated responses through the propagation of intercellular waves. Disruptions in this coordination are implicated in irregular insulin secretion, a hallmark of diabetes. Recently, innovative approaches, such as integrating multicellular calcium imaging with network analysis, have emerged for a quantitative assessment of the cellular activity in islets. However, different groups use distinct experimental preparations, microscopic techniques, apply different methods to process the measured signals and use various methods to derive functional connectivity patterns. This makes comparisons between findings and their integration into a bigger picture difficult and has led to disputes in functional connectivity interpretations. To address these issues, we present here a systematic analysis of how different approaches influence the network representation of islet activity. Our findings show that the choice of methods used to construct networks is not crucial, although care is needed when combining data from different islets. Conversely, the conclusions drawn from network analysis can be heavily affected by the pre-processing of the time series, the type of the oscillatory component in the signals, and by the experimental preparation. Our tutorial-like investigation aims to resolve interpretational issues, reconcile conflicting views, advance functional implications, and encourage researchers to adopt connectivity analysis. As we conclude, we outline challenges for future research, emphasizing the broader applicability of our conclusions to other tissues exhibiting complex multicellular dynamics.
Keywords: islets of Langerhans, beta cells, calcium signaling, intercellular communication, functional networks, myosin model
Published in DKUM: 09.12.2024; Views: 0; Downloads: 3
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3. An Assessment of socio-economic status of women on family farms: Slovenian case studyJernej Prišenk, Urška Vesenjak, Črtomir Rozman, Jernej Turk, Karmen Pažek, 2024, original scientific article Abstract: The question of gender equality is increasingly being raised today and is present at all
levels of society. The topicality of the issue on farms is particularly evident, due to the particular
inheritance processes on farms, the clear division of labour, and intergenerational cooperation that
characterise the agricultural sector. In this research, a multi-criteria model (DEX-SOCIAL) was
developed to understand the broader aspect of rural sociology and the issue of women’s status on
the farm. The paper discusses the status of women on a farm and assesses their social and economic
situation. The methodology includes an online questionnaire in which women in the Eastern and
Western Cohesion Regions participated, as well as other farm members and owners. Subsequently,
the questions were transformed for the requirements of the assessment model, which assessed the life
prospects of women on farms in both the Eastern and Western Cohesion Regions who were aged both
over and under 40 years (criteria for “young successor”). The results of the study show that there
is a clear difference in the qualitative assessment of women’s socio-economic position in relation
to the East–West cohesion region. The social position of women does not differ according to age
structure. The conclusions of the study also present broader applications of the results in the field of
rural development and rural sociology.
Keywords: woman, socio-economic status, family farms, multi-criteria model, DEX
Published in DKUM: 29.11.2024; Views: 0; Downloads: 2
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4. Mathematical modeling of the floating sleeper phenomenon supported by field measurements : Mojmir Uranjek, Denis Imamović and Iztok PerušMojmir Uranjek, Denis Imamović, Iztok Peruš, 2024, original scientific article Abstract: This article aims to provide an accurate mathematical model with the minimum number of degrees of freedom for describing the floating sleeper phenomenon. This was accomplished using mathematical modeling supported by extensive field measurements of the railway track. Although the observed phenomenon is very complex, the simplified single degree of freedom (SDOF) mathematical model proved accurate enough for its characterization. The progression of the deterioration of the railway track was successfully correlated to changes in the maximal dynamic factor for different types of pulse loading. The results of the presented study might enable the enhanced construction and maintenance of railroads, particularly in karst areas.
Keywords: floating sleepers, dynamic factor, pulse loading, field measurements, SDOF mathematical model
Published in DKUM: 28.11.2024; Views: 0; Downloads: 3
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5. Komunikacijski model književne vzgoje v digitalno podprtih učnih okoljih za prvo vzgojno-izobraževalno obdobje : doktorska disertacijaPolonca Legvart, 2024, doctoral dissertation Abstract: Vpliv učnega okolja na književno vzgojo v začetnih letih šolanja je redkeje obravnavan vidik in še posebej digitalna podpora pri tem postavlja pedagoškemu raziskovanju nova vprašanja. Med njimi je ključno, ali lahko z didaktično uporabo digitalnih učnih pomagal izboljšamo recepcijo književnosti pri učencih. Razlogi za raziskovalno poglobitev v to vprašanje so v razmerah, ko otroci že v polni meri živijo čas digitalne družbe, cilj književne vzgoje pa je, da ta okoliščina ne bi povzročila njihovega odmika od književnosti, pač pa zbližanje z njo, saj jim književnost zagotavlja bistvene kompetence, vire in strategije za soočanje z izzivi kronične krize 21. stoletja.
Potrebne so spremembe tradicionalnega pouka književnosti z vidika upoštevanja digitalno podprtega učnega okolja, integriranja tehnologije v pedagoški pristop (TPACK in SAMR), digitalne pismenosti, digitalnega razkoraka in podpiranja »drugega tira« za otroke iz literarno manj spodbudnih okolij. Odločilno oporo nudi uveljavljeni model literarnorecepcijske in didaktične komunikacije pri književni vzgoji, ki ga je mogoče nadgraditi za digitalno podprto učno okolje.
Empirična raziskava se je osredotočila na pripravljenost učiteljev kot ključnih dejavnikov didaktičnih sprememb za vključevanje digitalnih tehnologij v izvajanje književne vzgoje. Podan je podrobnejši prikaz priprave, izvedbe in evalvacije primerov didaktičnih enot književne vzgoje v digitalno podprtem učnem okolju prvih treh razredov (1. VIO) s pristopom spojenega (blended) učenja. Glede na kompleksnost obravnavanega pojava književne vzgoje v digitalno podprtem učnem okolju je za preučevanje le-tega izbranih več raziskovalnih metod tako kvantitativnega kot kvalitativnega značaja ter komplementarni način njihovega kombiniranja ter triangulacije.
Tako teoretična izhodišča kot praktična pedagoška izkušnja ter kvalitativna in kvantitativna evalvacija le-te potrjujejo, da je komunikacijski model književne vzgoje ob ustreznih prilagoditvah izvedljiv tudi v digitalno podprtem učnem okolju. To se je kljub vsiljeni izvedbi vendarle pokazalo pri izobraževanju na daljavo zaradi epidemije COVID-19, primeri premišljene izvedbe digitalno podprte književne vzgoje v poepidemičnem obdobju pa dokazujejo, da je mogoče na ta način dodatno motivirati učence in poglobiti njihovo recepcijo literarnega dela ter tako uspešno razvijati njihovo recepcijsko zmožnost.
Pomen navedenih raziskovalnih dognanj bi lahko vplival na preobrat k pozitivni naravnanosti učiteljev do vključevanja digitalnih tehnologij v pedagoške pristope pri književni vzgoji in nasploh. S tem bi šola prevzela odločilnejšo vlogo pri usmerjanju mladih ljudi glede načinov uporabe novih komunikacijskih tehnologij.
Keywords: komunikacijski model književne vzgoje, digitalno podprta učna okolja, digitalna pismenost, prvo vzgojno-izobraževalno obdobje, didaktična enota, spojeno učenje, drugi tir književne vzgoje
Published in DKUM: 26.11.2024; Views: 0; Downloads: 8
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6. Priročnik za delo s programom za optimiranje sovprežnega stropnega sistema s plastično odpornostjo nosilca z jeklenimi IPE profili : COMBOPT-PIPE, verzija 1,0Tomaž Žula, Stojan Kravanja, 2024 Abstract: Priročnik predstavlja delo s programom za optimiranje sovprežnega stropnega sistema, ki se lahko uporablja pri gradnji večetažnih stavb. Konstrukcija je sestavljena iz armiranobetonske plošče in jeklenih IPE nosilcev. Optimiranje je izvedeno z mešanim celoštevilskim nelinearnim programiranjem (MINLP). Razvit je bil optimizacijski model COMBOPT-PIPE s podrobno namensko funkcijo lastnih izdelavnih stroškov. Poleg namenske funkcije optimizacijski model vsebuje vhodne podatke, spremenljivke, pogojne (ne)enačbe, poznane iz analize in dimenzioniranja sovprežnih konstrukcij, celoštevilske in mešane celoštevilske pogojne (ne)enačbe. Pogoji dimenzioniranja so definirani v skladu z Evrokod 4. Na koncu priročnika je predstavljen računski primer optimizacije sovprežnega stropnega sistema.
Keywords: program, optimizacijski model, optimizacija, mešano celoštevilsko nelinearno programiranje, sovprežni stropni sistem
Published in DKUM: 22.11.2024; Views: 0; Downloads: 7
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7. Trajnost v modni industriji: trendi, izzivi, strategije in poslovni model na primerihKatja Žurej, 2024, undergraduate thesis Abstract: V diplomski nalogi smo se osredotočili na analizo trajnostnega razvoja v modni industriji, s
poudarkom na trajnostnih trendih, izzivih, strategijah in poslovnih modelih. Modna industrija
se sooča z več pomembnimi problemi, vključno z obsežnim onesnaževanjem okolja, prekomerno
porabo virov in slabimi delovnimi pogoji. Poleg tega pa hitro spreminjajoči se modni trendi
spodbujajo hitro modo, kar povzroča velike količine odpadkov zaradi kratke življenjske dobe
izdelkov. Kljub tem težavam vedno več podjetij v modni industriji prepoznava potrebo po
trajnostnem razvoju in sprejema trajnostne prakse. Ta prehod vključuje uporabo trajnostnih,
inovativnih materialov, izboljšanje delovnih pogojev ter spodbujanje krožnega gospodarstva,
kar prispeva k zmanjšanju negativnih vplivov na okolje in družbo ter k bolj odgovornemu
poslovanju.
V študiji primera smo obravnavali dve podjetji, Patagonia in Veja, ki predstavljata vodilna
primera uspešnih trajnostnih modnih podjetij. Patagonia je znana po svoji dolgotrajni
zavezanosti k okoljski odgovornosti, vključno z uporabo recikliranih materialov in podporo
okoljskim pobudam. Veja se osredotoča na uporabo ekoloških materialov in pravične trgovine
ter zmanjšanje svojega okoljskega odtisa z inovacijami v proizvodnji in distribuciji. Obe
podjetji vlagata v preglednost svojih dobavnih verig in spodbujata odgovorno nakupovanje.
Njun uspeh dokazuje, da je možno združiti poslovno uspešnost z etičnimi in okoljskimi načeli.
Keywords: trajnostni razvoj, modna industrija, poslovna strategija, poslovni model.
Published in DKUM: 20.11.2024; Views: 0; Downloads: 10
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8. Becoming a mother-athlete : female athletes' transition to motherhood in SloveniaJanja Usenik, Paul Wylleman, Saša Cecić Erpič, 2020, original scientific article Abstract: Perceptions of incompatibility of sport and motherhood still exist within both sport and family Slovene cultures. For many female athletes starting a family means an end of their athletic careers. However, some women decide to pursue their athletic life after they become mothers. While recent media interest in mother-athletes has increased significantly, scientific research focusing on this topic is still scarce. The purpose of this study was to explore the transition of Slovene female athletes into motherhood and their experiences of combining motherhood with competitive sport. Semi-structured interviews were conducted with eight female elite athletes, who became mothers during their elite level competitive career. The results of the study revealed that mother-athletes perceived this transition as a long-term process in which motherhood and elite sport had a reciprocal effect on each other. Three transition phases characterized by changes in the participants’ holistic development were identified: (1) pre-pregnancy and pregnancy, (2) returning to competitive sport, and (3) living the life of a mother-athlete.
Keywords: sport, women, children, parenthood, mother, holistic athletic career model, athlets
Published in DKUM: 18.11.2024; Views: 0; Downloads: 3
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9. Razvoj modela za ocenjevanje delovne uspešnosti policistovBoštjan Oblak, 2024, master's thesis Abstract: Sistem ocenjevanja v javni upravi predstavlja izziv, saj težje vrednotimo opravljeno delo, kot to lahko storimo v zasebnem sektorju, kjer je v določenih podjetjih produktivnost lahko zlahka merljiva. Prav tako problem predstavlja sistem ocenjevanja, ki je za celotno javno upravo univerzalen oziroma ni prilagojen glede na karakteristike oziroma značilnosti poklica. Sistem plač funkcionarjev in javnih uslužbencev v javnem sektorju, pravila za njihovo določanje, obračunavanje in izplačevanje ter pravila za določanje obsega sredstev za plače določa Zakon o sistemu plač v javnem sektorju (ZSPJS). Ne glede na plačno skupino, ki naj bi ločila zaposlene v javnem sektorju, pa je model za ocenjevanje javnih uslužbencev za vse javne uslužbence enak in ni prilagojen glede na karakteristike dela znotraj javne uprave. Ocenjevanje ima v javnem sektorju velik pomen, saj je neposredno povezano s plačnim napredovanjem. Ocena javnega uslužbenca že znotraj iste plačne skupine ne more biti objektivna, saj ima javni uslužbenec, ki je zaposlen na bolj obremenjeni izpostavi (policijska postaja na območju Ljubljane, Uprava Enota Ljubljana ali Upravna Enota Maribor …), večji obseg dela, kot ga ima javni uslužbenec, ki svoje delo opravlja na območju, kjer je število strank manjše. Prav tako omenjeni zaposleni težje svoje delo opravljajo pravočasno, nimajo časa za razvijanje novih idej in dajanja koristnih predlogov in pobud, hkrati pa je ob večji količini dela pogostost napak lahko večja. Primeren sistem ocenjevanja javnih uslužbencev bi moral biti objektiven in specifičen glede na delo znotraj enote, ki jo »pokriva« ocenjevalec. Model za ocenjevanje delovne uspešnosti bi moral biti pregleden, prilagojen zaposlenim in z jasnimi navodili ocenjevalcu ter po možnosti digitalen. Ena izmed ustreznih rešitev bi bila uporaba večparametrskega oziroma večkriterijskega odločitvenega modela z jasno določeno strukturo kriterijev, opisom zalog vrednosti in določeno funkcijo koristnosti. Omenjen model bi odločevalcu pomagal pri vrednotenju in analizi zaposlenih ter pri oblikovanju poročil.
Keywords: ocenjevanje delovne uspešnosti, policija, večkriterijski model odločanja
Published in DKUM: 15.11.2024; Views: 0; Downloads: 5
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10. Socio-demographic and health factors drive the epidemic progression and should guide vaccination strategies for best COVID-19 containmentRene Markovič, Marko Šterk, Marko Marhl, Matjaž Perc, Marko Gosak, 2021, original scientific article Abstract: We propose and study an epidemiological model on a social network that takes into account heterogeneity of the population and different vaccination strategies. In particular, we study how the COVID-19 epidemics evolves and how it is contained by different vaccination scenarios by taking into account data showing that older people, as well as individuals with comorbidities and poor metabolic health, and people coming from economically depressed areas with lower quality of life in general, are more likely to develop severe COVID-19 symptoms, and quicker loss of immunity and are therefore more prone to reinfection. Our results reveal that the structure and the spatial arrangement of subpopulations are important epidemiological determinants. In a healthier society the disease spreads more rapidly but the consequences are less disastrous as in a society with more prevalent chronic comorbidities. If individuals with poor health are segregated within one community, the epidemic outcome is less favorable. Moreover, we show that, contrary to currently widely adopted vaccination policies, prioritizing elderly and other higher-risk groups is beneficial only if the supply of vaccine is high. If, however, the vaccination availability is limited, and if the demographic distribution across the social network is homogeneous, better epidemic outcomes are achieved if healthy people are vaccinated first. Only when higher-risk groups are segregated, like in elderly homes, their prioritization will lead to lower COVID-19 related deaths. Accordingly, young and healthy individuals should view vaccine uptake as not only protecting them, but perhaps even more so protecting the more vulnerable socio-demographic groups.
Keywords: epidemic model, COVID-19, vaccination strategy, vaccination strategy, population heterogeneity, socio-demographic structure, metabolic disease, social network
Published in DKUM: 14.11.2024; Views: 0; Downloads: 4
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