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Presence of alien Prunus serotina and Impatiens parviflora in lowland forest fragments in NE Slovenia
Mirjana Šipek, Eva Horvat, Ivana Vitasović Kosić, Nina Šajna, 2022, original scientific article

Abstract: Temperate alluvial, riparian and lowland forests are the European forests with the greatest presence of invasive alien plants. Consequently, identifying the environmental conditions for and other drivers behind the establishment of invasive species in natural forest communities is crucial for understanding the invasibility of these habitats. We focused on fragments (patches) of Illyrian oak-hornbeam forest in NE Slovenia, which are the least studied in this regard. Because alien phanerophytes and therophytes are significantly over-represented compared to native plantsin lowland forests, we selected two representative invasives: the phanerophyte Prunus serotina and the therophyte Impatiens parviflora. By using logistic regression models on vegetation surveys, environmental data based on Ellenberg´s indicator values, and patch metrics, we identified patch characteristics explaining the presence of each species. Moreover, we included human impact in the models. We reveal significant characteristics differentiating P. serotina from I. parviflora. We also show that the perimeterarea ratio and soil nutrients of the forest patches correlate significantly with the presence of P. serotina, while human disturbance correlates significantly with the presence of I. parviflora. Our results and a similar approach for other invasive plant species can be applied to assess habitat invasibility on potential and species’ current geographic distribution, as well as to develop management plans.
Keywords: biological invasions, forest fragmentation, landscape metrics, habitat characteristics, human presence, anthropogenic factors, neophytes, Slovenia
Published in DKUM: 12.07.2024; Views: 75; Downloads: 5
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Dual career development perspective : factors affecting quality of post-sport career transition of employed olympic athletes
Petra Robnik, Edvard Kolar, Boro Štrumbelj, Marko Ferjan, 2022, original scientific article

Abstract: Although Olympic athletes are celebrated for their sports achievements, they often face serious difficulties in their post-sport career employment. Factors of development that are affecting the quality of post-sport career transition of Olympic athletes are important to acknowledge in the dual career (DC) development perspective. Due to the side lining of academic activities, athletes are often not well prepared for the labor market. If they do not gain sufficient financial background in their careers, it can lead to a lack of proper economic inclusion of athletes in their post-sport career employment and further impact their lives. Career transitions of athletes have been the subject of research in different aspects of DC support (e.g., athletic, psychological, psychosocial, academic/vocational, financial), but most research is linked to the student-athlete DC perspective. Therefore, the aim of our research was to examine the impact of factors directly contributing to the quality of the post-sport career transition in Slovenian elite and Olympic athletes and the social class position and employment of these athletes after the termination of their sports career. From DC support practice, we learned that although athletes often have a proper level of education, their post-sport career transitions were not successful. To fill this gap, 168 elite athletes (Mage = 33.34, SD = 13.1) from Slovenia were asked to complete online questionnaires. The results showed a significant contribution of education and DC support-related finances (e.g., employment of athletes in public administration) to the quality of post-sport career transition. Regarding developing a national DC model and based on empirical research, this study identifies the social class position and employment status of former elite athletes from Slovenia. It also identifies opportunities for further research on the quality of the post-sport career transitions and perspectives on DC support. Understanding how different factors contribute to the integrated development of individual athletes to reach their potential in sports, education, and their post-sport career employment is important for theorists, DC practitioners, and stakeholders working with DC athletes. To develop a sufficient mechanism, DC support providers should consider supporting education along with the financial support of athletes during their sports careers and recognizing study-training ecosystems, based on good practices to successfully transition to their post-sport careers. These findings can also be useful for athletes and their athletic triangle support network (e.g., coaches and parents) as a support in the decision-making.
Keywords: dual career, olympic athletes, post-sport career transition, factors of development, employment, quality
Published in DKUM: 11.07.2024; Views: 42; Downloads: 2
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The influence of anxiety and fear of COVID‑19 on vaccination hesitancy among postsecondary students
Andrej Šorgo, Nuša Crnkovič, Katarina Cesar, Špela Selak, Mitja Vrdelja, Branko Gabrovec, 2022, original scientific article

Abstract: The aim of the present study was to explore the infuence of anxiety and fear of COVID-19 on vaccination hesitancy among Slovenian postsecondary students. A cross-sectional study using a set of previously tested instruments and ad hoc questions created by the authors was chosen as the method to gain insight into various health and sociodemographic aspects of Slovenian postsecondary students afected by the COVID-19-induced closures and suspensions of educational activities at tertiary educational institutions (N= 5999). Overall, 39.7% of participating students expressed an intention to get vaccinated at the frst possible opportunity, whereas 29.2% expressed no intent to do so. The highest vaccine hesitancy was observed among prospective teachers (50.3%) and the lowest among prospective physicians (5,7%). When examining the role of anxiety and fear of COVID-19 on the Slovenian postsecondary students' intentions to get vaccinated the results of logistic regression showed that only fear of COVID-19 played a mild and signifcant role.
Keywords: vaccination, health care, health occupations, medical research, risk factors, signs and symptoms, students
Published in DKUM: 05.07.2024; Views: 57; Downloads: 2
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Sustainable CSR : Legal and Managerial demands of the new EU legislation (CSRD) for the future corporate governance practices
Andreja Primec, Jernej Belak, 2022, original scientific article

Abstract: Despite its short-term use, non-financial reporting is an important measure, as demonstrated by numerous theoretical studies and empirical research. However, the mandatory nature of non-financial reporting and public pressure have persuaded company management to address non-financial issues alongside financial ones. Companies from countries with a more prolonged culture and tradition have been more successful in this respect than the companies from “younger” transition countries. Overall, non-financial reporting has raised the level of social responsibility in companies. However, things are far from ideal. Many uncertain situations, e.g., environmental, health, energy, etc., bring new challenges. They require not only non-financial, but also sustainable solutions. Therefore, it is unsurprising that the disclosure of non-financial information has also been renamed sustainability reporting (regarding designation in legal acts). In the presented research, we analyze how Slovenian companies comply with the current legislation (NFRD) requirements and whether their non-financial reports are qualitatively and quantitatively adequate. We are interested in what changes the new legislative proposal (CSRD) requires from them. Are the efforts of the legislator going in the right direction? Will companies be better prepared for environmental and social risks, and therefore better manage for sustainability once the CSRD is in place? The results suggest that the qualitative part of the non-financial reporting is the weakest. This gap in the quality of (required) non-financial reporting is also the subject of the presented research, which shows the (non)quality of the present non-financial reporting and therefore justifies the development of further requirements. Thus, CSRD introduces mandatory and uniform reporting standards based on double materiality, unification of the system of sanctions, external audit, etc. Therefore, our expectations that the new directive will contribute to more sustainability-oriented corporate governance are legitimate and justified. Since the CSRD harmonized sustainability reporting in the EU, this applies to Slovenia and all member states.
Keywords: sustainability reporting, governance factors, legal framework, Directive 2014/95/EU, CSRD proposal
Published in DKUM: 01.07.2024; Views: 56; Downloads: 4
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Factors associated with gastrointestinal dysmotility in critically ill patients
Nemanja Petrović, Miodrag Žunić, Ana Pejčić, Miloš Milosavljević, Slobodan Janković, 2023, original scientific article

Abstract: Critical illness may disrupt nutritional, protective, immune, and endocrine functions of the gastrointestinal tract, leading to a state of gastrointestinal dysmotility. We aimed to identify factors associated with the occurrence of gastrointestinal dysmotility in critically ill patients. A cross-sectional retrospective study was conducted, using patient files as a source of data. The study included 185 critically ill patients treated in the intensive care unit of the University Clinical Center, Kragujevac, Serbia, from January 1, 2016, to January 1, 2022. Significant risk factors associated with some form of gastrointestinal dysmotility were acute kidney injury (with paralytic ileus, nausea, vomiting, and constipation), recent abdominal surgery (with ileus, nausea, vomiting, and constipation), mechanical ventilation (with ileus, and nausea), age (with ileus and constipation), and use of certain medication such as opioids (with ileus, gastro-esophageal reflux, nausea, vomiting, and constipation), antidepressants (with ileus, nausea, and vomiting), and antidiabetics (with ileus). On the other hand, Charlson comorbidity index had divergent effects, depending on the form of gastrointestinal dysmotility: it increased the risk of gastro-esophageal reflux but protected against ileus, nausea, and vomiting. In clonclusion, recognition of factors associated with gastrointestinal dysmotility should initiate preventative measures and, thus, accelerate the recovery of critically ill.
Keywords: gastrointestinal dysmotility, critically ill patients, risk factors, intensive care unit
Published in DKUM: 04.04.2024; Views: 141; Downloads: 5
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Formation the links between circularity and sustainability in the circular economy
Olga Lingaitienė, Aurelija Burinskiene, 2023, review article

Abstract: Nowadays, many new questions arise regarding the creation and setting of goals for a sustainable circular economy. The study focused on exploring the connections between the concepts of circularity and sustainability in the circular economy. Sustainability aspects integrated into long-term circular economy processes have a clear impact on the environment, the economy and political decisions. The study examines the factors that contribute to and influence the formation of the circular economy and reveals the connection between circularity and sustainability. After reviewing the literature on the links between circularity and sustainability, the theoretical methods that are most often applied to examine aspects of circularity and sustainability have been identified and reviewed. It was also conducted by bibliometric analysis for 2021-2023 which helps to identify current trends and found that the number of studies analysed included five groups which show that the studies are focused on impact, production, end, review and value. The results of the bibliometric analysis show that circularity has links with supply chain, sustainability, material circularity, efficiency and value. The authors have presented research by topic because knowledge is needed to fill existing gaps.
Keywords: circularity, sustainability, theories, factors, links
Published in DKUM: 20.03.2024; Views: 182; Downloads: 11
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The influence of organizational factors on the adoption of energy efficiency measures in companies
Aleksandar Vučković, Marija Džunić, 2023, original scientific article

Abstract: This paper aims to research the organizational factors influencing the implementation of energy efficiency measures in companies. The analysis was performed on a sample of companies from Serbia included in the World Bank Enterprise Survey. The raw data collected by the World Bank were utilized to analyze the correlation between various organizational factors and the adoption of energy efficiency measures. The analysis revealed a statistically significant correlation between management maturity and the implementation of energy efficiency measures in companies. These findings suggest that improving energy efficiency is not an isolated process but rather closely related to the maturity of management practices, highlighting the importance of comprehensive organizational development for achieving optimal energy management.
Keywords: energy efficiency, energy management, management maturity, organizational factors, Serbia
Published in DKUM: 05.09.2023; Views: 233; Downloads: 7
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Risk factors for surgical site infection following craniotomy: a 10-year retrospective cohort study
Hojka Rowbottom, Borut Hribernik, Janez Ravnik, 2022, original scientific article

Keywords: craniotomy, risk factors, surgical site infection
Published in DKUM: 16.01.2023; Views: 537; Downloads: 38
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Application of normalization method to fracture toughness testing of welds with pronounced strength heterogeneity : doctoral disertation
Primož Štefane, 2022, doctoral dissertation

Abstract: This doctoral dissertation presents the results of an extensive fracture testing programme of welds with pronounced strength heterogeneity. Purpose of this programme was to determine fracture toughness of heterogeneous welds that contain a midplane crack. Application of standardized fracture testing methods in heterogeneous welds might lead to overestimation or underestimation of fracture toughness and consequentially to inaccurate assessment of structural integrity. Reasons for that are variations in mechanical properties of different material regions in the weld which have a significant impact on development of deformation at the crack tip, and consequently on the crack driving force. Experimental procedures in scope of this research include fabrication of weld sample plates, that were welded with MAG process. The welds were fabricated using two different electrodes, one with higher and one with lower mechanical properties, with respect to base material S690QL in order to replicate extreme variations of mechanical properties in the weldment. Fabricated welds were then characterized in detail using metallography, three-point bend impact testing, indentation hardness measurements and tensile testing of flat miniature and round bar standard tensile specimens. Resistance of welds to stable tearing was investigated by fracture testing of square surface cracked SE(B) specimens containing a weld midplane notch. J-integral has been estimated from plastic work, using the normalization data reduction method that is included in standard ASTM E1820. The advantage of the normalization data reduction method is that no special equipment or complex testing method is needed to measure ductile crack growth during fracture testing. The ductile crack growth is determined directly from the load-displacement record, by applying appropriate calibration function and physical lengths of initial and final cracks that were measured post-mortem with the nine-point method. Several correction factors had to be calibrated in order to successfully implement the normalization data reduction method to fracture testing of welds with pronounced strength heterogeneity. For that reason, parametric finite element analyses were conducted for several weld configurations. Finite element models incorporated plane strain conditions in order to provide calibrated factors that comply with plane strain equations included in ASTM E1820. Additionally, crack tip constraint has been extensively analysed and correlated with the plastic deformation fields. This clarified altered deformation behaviour of modelled welds in comparison with the base material and corresponding effect on fracture toughness. Finally, calibrated factors were applied to computation of J-integral from data that were measured during fracture testing. J-R resistance curves were constructed for the tested heterogeneous welds and compared to the ones of the base material. This directly showed the effect of variations of mechanical properties on the weld fracture behaviour.
Keywords: weld, strength mismatch, fracture, normalization data reduction technique, plastic correction factors, test fixture, SE(B) specimen, J-R resistance curve
Published in DKUM: 10.01.2023; Views: 709; Downloads: 174
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Analiza pričakovanih učinkov uvedbe oblačne rešitve »SAP Success Factors«
Špela Mahorič, 2019, master's thesis

Abstract: Eden izmed najpomembnejših dejavnikov pri doseganju poslovnih ciljev podjetja so usposobljeni zaposleni, ki se uspešno spopadajo z novimi razmerami na trgu. Zato je kadrovska funkcija v podjetjih izjemnega pomena, saj izbira kandidate, ki so za dosego poslovnih ciljev najbolj primerni. Na eni strani imamo tradicionalno plat kadrovske funkcije, pri kateri podjetje zagotovi zaposlene in poskrbi, da ti zaposleni dobijo za svoje delo primerno plačilo. Na drugi strani pa imamo strateško plat kadrovske funkcije. Pri tej gre za to, da podjetje pridobi prave zaposlene na pravih delovnih mestih, ki delajo prave stvari na pravi način, hkrati pa jim omogoča pravi razvoj za prihodnost. Obe strani kadrovske funkcije lahko poenostavimo s pomočjo kadrovskih informacijskih sistemov. Ti omogočajo, da podjetje zmanjša kadrovsko papirno dokumentacijo in upravlja z zaposlenimi s pomočjo informacijskega sistema. Začetki kadrovskih informacijskih sistemov so bili v opravljanju nalog tradicionalne plati. Ob razvoju informacijske tehnologije pa so ponudniki kadrovskih informacijskih sistemov razvili tudi strateško plat kadrovske funkcije. Kadrovski informacijski sistemi so sredstvo za pridobivanje, shranjevanje, analiziranje in posredovanje informacij različnim uporabnikom. Običajno obsegajo ohranjanje zaposlenih, zaposlovanje, upravljanje z zaposlenimi, upravljanje plačilnega prometa, načrtovanje kadrovskih virov, upravljanje z izobraževanji, spremljanje uspešnosti, samoupravljanje zaposlenih, načrtovanje, upravljanje odsotnosti, analitiko, prerazporeditve zaposlenih in drugo. Na trgu obstaja veliko ponudnikov kadrovskih informacijskih sistemov. Noviteta predvsem na slovenskem trgu pa je SAP Success Factors. Rešitev še vedno omogoča opravljanje enakih kadrovskih funkcij, le da je s SAP Success Factors to poenostavljeno in dostopnejše. V magistrski nalogi je mogoče spoznati in lažje razumeti kadrovsko funkcijo v podjetju in področja upravljanja s kadri. Podrobneje so opredeljeni kadrovski informacijski sistemi, njihov razvoj in funkcije ter ponudniki kadrovskih informacijskih sistemov. Izmed vseh ponudnikov smo izbrali rešitev SAP Success Factors, ki je nastala leta 2011 ob združitvi podjetij SAP d. o. o. in Success Factors. V drugem delu je na podlagi podjetja X predstavljen obstoječi kadrovski informacijski sistem in nekatere funkcije, kot sta spremljanje uspešnosti zaposlenih in upravljanje nasledstev. Obstoječi kadrovski informacijski sistem v tem podjetju namreč ne predstavlja takšne učinkovitosti, kot bi ga podjetje z uporabo sistema želelo. Nekaterih funkcij ni mogoče informacijsko podpreti ali pa so za to potrebni zunanji zaposleni, kar prinaša podjetju visoke stroške. V magistrski nalogi smo v demo verziji programa SAP Success Factors predstavili procese, ki bi izbranemu podjetju izboljšali upravljanje s kadri. Za konec smo naredili primerjalno analizo med obstoječim kadrovskim informacijskim sistemom in programom SAP Success Factors. Ugotovili smo, da bi podjetje z vpeljavo sistema SAP Success Factors izboljšalo nekatere procese, zmanjšalo papirno dokumentacijo, izboljšalo kadrovsko poročanje, informacijsko podprlo letne pogovore, izboljšalo motivacijo zaposlenih in drugo.
Keywords: kadrovski informacijski sistem, SAP Success Factors, primerjalna analiza, oblikovanje ciljev, letni pogovori, upravljanje nasledstev
Published in DKUM: 18.03.2019; Views: 1436; Downloads: 201
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