Iskanje po katalogu digitalne knjižnice

Opis: Sodobni način življenja prinaša številne izzive, med katerimi je usklajevanje delovnih in družinskih obveznosti eden najpomembnejših. Tudi delovno okolje je vse bolj zahtevno, kar lahko vpliva na ravnovesje med delom in družino ter na zavzetost zaposlenih pri delu. Magistrsko delo se osredotoča na raziskovanje različnih dejavnikov, ki vplivajo na ravnovesje med delom in družino ter na zavzetost zaposlenih pri delu. Razdeljeno je na teoretični, empirični in zaključni del. V okviru teoretičnega dela smo pregledali literaturo in obstoječe raziskave s področja ravnovesja med delom in družino ter zavzetosti zaposlenih. V izbranem podjetju smo izvedli raziskavo med zaposlenimi, s katero smo raziskali, kakšna je stopnja zavzetosti zaposlenih pri delu in kateri dejavniki vplivajo na zavzetost. Zanimalo nas je, na kakšen način podjetje podpira usklajevanje poklicnega in zasebnega življenja ter kakšen vpliv ima stopnja zadovoljstva z ravnovesjem med poklicnim in zasebnim življenjem na zavzetost zaposlenih. Rezultati raziskave so pokazali, da ni povezave med stopnjo zadovoljstva z ravnovesjem med poklicnim in zasebnim življenjem in zavzetostjo zaposlenih. Večina zaposlenih v izbranem podjetju ima srednjo stopnjo delovne zavzetosti, čeprav podjetje skrbi za povečevanje zavzetosti zaposlenih pri delu. Rezultati raziskave kažejo, da so zaposleni zadovoljni z ukrepi, ki jih za zagotavljanje ravnovesja med delom in družino nudi podjetje x. Na podlagi rezultatov smo oblikovali priporočila za podjetje x, kako lahko še izboljša politiko in prakse, ki podpirajo ravnovesje med delom in družino ter zavzetost zaposlenih pri delu.
Ključne besede: zaposleni, usklajevanje, zavzetost, delo, družinsko življenje
Objavljeno v DKUM: 30.08.2024; Ogledov: 85; Prenosov: 17
Celotno besedilo (1,32 MB)

Opis: In order to ensure efficient wastewater treatment and seawater desalination, adequate modeling and optimization of the forward osmosis (FO) process has the potential to be very helpful. This paper deals with the FO model parameters calibration and FO process optimization by a gradient-based optimization method. For this purpose, an upgraded FO model, which involves temperature- and agent-dependent parameters, was developed. The FO model calibration was done using NaCl as agents in draw solution, while MgCl2 was used for model validation. The agreements between simulated and measured FO performance were satisfactory; relative index of agreement are higher than 0.99. By using the proposed FO model, the optimization of FO process conditions was performed with various definitions of the objective and constraint functions. In case of maximizing the water flux, minimizing reverse solute flux, and fulfilling the required constraints, the ratio of water flux and reverse solute flux increased up to 40 % for NaCl and up to 20 % for MgCl2; meanwhile the effective osmotic pressure difference was improved 2-times for NaCl and up to 3.8-times for MgCl2. The optimization process proved to be stable and efficient and can easily be adapted or upgraded for more complex dynamic FO modeling.
Ključne besede: forward osmosis, modeling, model and process parameters, calibration procedure, gadient-based optimization
Objavljeno v DKUM: 23.08.2024; Ogledov: 67; Prenosov: 15
Celotno besedilo (12,72 MB)
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Opis: Adrenaline inhibits insulin secretion from pancreatic beta cells to allow an organism to cover immediate energy needs by unlocking internal nutrient reserves. The stimulation of α2-adrenergic receptors on the plasma membrane of beta cells reduces their excitability and insulin secretion mostly through diminished cAMP production and downstream desensitization of late step(s) of exocytotic machinery to cytosolic Ca2+ concentration ([Ca2+]c). In most studies unphysiologically high adrenaline concentrations have been used to evaluate the role of adrenergic stimulation in pancreatic endocrine cells. Here we report the effect of physiological adrenaline levels on [Ca2+]c dynamics in beta cell collectives in mice pancreatic tissue slice preparation. We used confocal microscopy with a high spatial and temporal resolution to evaluate glucose-stimulated [Ca2+]c events and their sensitivity to adrenaline. We investigated glucose concentrations from 8-20 mM to assess the concentration of adrenaline that completely abolishes [Ca2+]c events. We show that 8 mM glucose stimulation of beta cell collectives is readily inhibited by the concentration of adrenaline available under physiological conditions, and that sequent stimulation with 12 mM glucose or forskolin in high nM range overrides this inhibition. Accordingly, 12 mM glucose stimulation required at least an order of magnitude higher adrenaline concentration above the physiological level to inhibit the activity. To conclude, higher glucose concentrations stimulate beta cell activity in a non-linear manner and beyond levels that could be inhibited with physiologically available plasma adrenaline concentration.
Ključne besede: adrenaline, islets, beta cells, cAMP, concentration dependency, [Ca2+]c oscillations, forskolin
Objavljeno v DKUM: 04.07.2024; Ogledov: 155; Prenosov: 10
Celotno besedilo (6,21 MB)
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Opis: Uvod: Zdravstvo s svojim delom vpliva na okolje, saj samo operacijske dvorane proizvedejo 30–70 % vse odpadne embalaže. Zaposleni lahko embalažo tudi neprimerno ločujejo, zato bi se morali osredotočiti na pobude za okoljsko trajnost. Namen raziskave je bil ugotoviti percepcijo zdravstvenega kadra o okoljski trajnosti v anesteziologiji. Metode: Raziskava je temeljila na kvantitativni metodologiji. Podatki so bili zbrani z anketnim vprašalnikom, ki smo ga povzeli po Tordjman, et al. (2022). K raziskavi smo povabili vse zaposlene v anesteziologiji, v vzorec je bilo vključenih 51 zdravstvenih delavcev iz področja anesteziologije v eni klinični instituciji. Pridobljene podatke smo analizirali s pomočjo programskega paketa Microsoft Office Excel ter opisne statistike. Rezultati: Pri raziskavi je sodelovalo 21 diplomiranih medicinskih sester, 6 magistric zdravstvene nege, 6 specializantov anesteziologije in 18 specialistov anesteziologije. Raziskava je pokazala, da zaposleni v domačem in službenem okolju ločujejo odpadke ter se zavedajo svojega vpliva na okolje s pravilnim ravnanjem z odpadki. Razprava in zaključek: Zaposleni v anesteziologiji imajo veliko vlogo pri okoljski trajnosti, saj s svojim ravnanjem manj onesnažujejo okolje, s premišljeno porabo zdravil in materiala pa lahko zmanjšajo stroške zdravstvenim ustanovam in hkrati skrbijo za okolje. Priporočeno je, da se izobražujejo in dopolnjujejo svoje znanje z izobraževanji na regijski, državni in svetovni ravni, saj bodo le tako okolje dobro čuvali za naše zanamce.
Ključne besede: zdravstveni delavci, okoljska, trajnost, anesteziologija
Objavljeno v DKUM: 03.07.2024; Ogledov: 149; Prenosov: 22
Celotno besedilo (1,10 MB)

Opis: Obesity is a complex disease that, like COVID-19, has reached pandemic proportions. Consequently, it has become a rapidly growing scientific field, represented by an extensive body of research publications. Therefore, the aim of this study was to present the research trends in the scientific literature on motivation and weight loss. Because traditional knowledge synthesis approaches are not appropriate for analyzing large corpora of research evidence, we utilized a novel knowledge synthesis approach called synthetic knowledge synthesis (SKS) to generate new holistic insights into obesity research focusing on motivation. SKS is a triangulation of bibliometric analysis, bibliometric mapping, and content analysis. Using it, we analyzed the corpus of publications retrieved from the Scopus database, using the search string TITLE-ABS-KEY((obesity or overweight) and “weight loss” and motiv*) in titles, keywords, and abstracts, without any additional inclusion or exclusion criteria. The search resulted in a corpus of 2301 publications. The United States of America, the United Kingdom, and Australia were the most productive countries. Four themes emerged, namely, weight loss and weight-loss maintenance through motivational interventions, lifestyle changes supported by smart ICT, maintaining sustainable weight with a healthier lifestyle, and weight management on the level of primary healthcare and bariatric surgery. Further, we established that the volume of research literature is growing, as is the scope of the research. However, we observed a regional concentration of research and its funding in developed countries and almost nonexistent research cooperation between developed and less-developed countries.
Ključne besede: obesity, weight loss, motivation, synthetic knowledge synthesis, bibliometrics, content analysis
Objavljeno v DKUM: 05.06.2024; Ogledov: 142; Prenosov: 12
Celotno besedilo (2,16 MB)
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