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Acceptance of GIS within ERP system : research study in higher education
Simona Sternad Zabukovšek, Polona Tominc, Zdenko Deželak, Gaik Nalbandyan, Samo Bobek, 2022, izvirni znanstveni članek

Opis: GIS is often used in companies where employees already use enterprise information systems/enterprise resource planning (ERP) systems and where both systems are used simultaneously. This article is a research study of GIS acceptance by users using GIS, not as a stand-alone tool, but as an integrated tool into the ERP system. The research was conducted using the Technology Acceptance Model (TAM), one of the most often used research models for researching behavioral intention and actual use of information systems. For this research study, TAM has been modified and extended with external factors. The main research objective is to identify determinants of GIS acceptance and the attitude of individuals toward using GIS integrated with ERP systems. The structural equation model with partial least squares (PLS) method was used to analyze collected survey data. The study researched 12 external factors in the TAM model, out of which 10 were found significant. The most important factors that impact behavioral intention to use ERP-GIS systems are perceived usefulness of ERP-GIS systems and attitude toward using GIS, followed by education and training about ERP-GIS systems and perceived enjoyment using ERP-GIS systems.
Ključne besede: geographic information systems (GIS), enterprise resource planning (ERP), GIS and ERP integration, GIS acceptance, technology acceptance model (TAM)
Objavljeno v DKUM: 09.07.2024; Ogledov: 31; Prenosov: 2
.pdf Celotno besedilo (1,27 MB)
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Enhancing PLS-SEM-Enabled research with ANN and IPMA : research study of enterprise resource planning (ERP) systems’ acceptance based on the technology acceptance model (TAM)
Simona Sternad Zabukovšek, Samo Bobek, Uroš Zabukovšek, Zoran Kalinić, Polona Tominc, 2022, izvirni znanstveni članek

Opis: PLS-SEM has been used recently more and more often in studies researching critical factors influencing the acceptance and use of information systems, especially when the technology acceptance model (TAM) is implemented. TAM has proved to be the most promising model for researching different viewpoints regarding information technologies, tools/applications, and the acceptance and use of information systems by the employees who act as the end-users in companies. However, the use of advanced PLS-SEM techniques for testing the extended TAM research models for the acceptance of enterprise resource planning (ERP) systems is scarce. The present research aims to fill this gap and aims to show how PLS-SEM results can be enhanced by advanced techniques: artificial neural network analysis (ANN) and Importance–Performance Matrix Analysis (IPMA). ANN was used in this research study to overcome the limitations of PLS-SEM regarding the linear relationships in the model. IPMA was used in evaluating the importance and performance of factors/drivers in the SEM. From the methodological point of view, results show that the research approach with ANN artificial intelligence complements the results of PLS-SEM while allowing the capture of nonlinear relationships between the variables of the model and the determination of the relative importance of each factor studied. On other hand, IPMA enables the identification of factors with relatively low performance but relatively high importance in shaping dependent variables.
Ključne besede: traditional PLS-SEM, artificial neural network (ANN) analysis, Importance–Performance Matrix Analysis (IPMA), ERP system acceptance, TAM model
Objavljeno v DKUM: 09.07.2024; Ogledov: 32; Prenosov: 2
.pdf Celotno besedilo (2,52 MB)
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Evaluation of traditional and indigenous horse breeds for wider intended use : Case study from Slovenia
Jernej Prišenk, Nina Filipič, Črtomir Rozman, Karmen Pažek, Jernej Turk, 2022, izvirni znanstveni članek

Opis: In this work, a new multi-criteria model for the evaluation of traditional and indigenous horse breeds, the HORQUAL model, was developed by applying the DEX (Decision Expert) method. The idea for this study culminated from brainstorming among researchers who had the importance of conserving traditional and indigenous horse breeds in Slovenia and their universal uses (recreative and sport) in mind. The conservation of native domestic animal breeds is one of the important indicators of sustainable agricultural development in particular countries. Here, the assessment process considered the horse breeds in terms of lifestyle, expectations, requirements and experiences. The development process was based on the multi-criteria decision analysis approach, and it was applied to seven traditional and indigenous Slovenian horse breeds. The horse breeds were classified into four groups of breed ratings according to the chosen criteria. The horse breeds were categorised as follows: “does not correspond to the criteria”, “less correspondence with the criteria”, “corresponds to the criteria” and “completely corresponds to the criteria”. The results of the HORQUAL model clearly show that it is easier and more effective to choose the most suitable breeds for specific purposes (i.e., recreative/sport horses with the potential for breeding along with acceptable costs, favourable temperament and suitable price) as they can easily be analysed or compared with each other, according to the criteria chosen in this paper. The rating by group takes the criteria for the multi-attribute evaluation that were identified by an expert group into account and balances between the assessment of recreational and sports needs for riders and the life expectancy for breeders. Additionally, incorporating the Plus-minus-1 analysis proved to be a useful support tool to analyse the assessments and to further improve horse breeding plans.
Ključne besede: traditional horse breeds, indigenous horse breeds, multi-criteria model, DEX-model
Objavljeno v DKUM: 02.07.2024; Ogledov: 68; Prenosov: 7
.pdf Celotno besedilo (5,85 MB)
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Economic viability of alternative bedding material in broiler chicken farming
Jernej Prišenk, Maksimiljan Brus, 2022, izvirni znanstveni članek

Opis: The aim of this paper is to assess the economic viability of two different bedding materials used in broiler chicken farming processes. The materials considered are wood shavings and slice-dedusted straw. The slice-dedusted straw is considered an alternative type of bedding material produced by a company from Slovenia. While the technological and economic assessment of this type of bedding material has already been researched in the case of horse breeding, it is something new in the case of broiler chicken farming. Data collection is structured from two trials. Trial one (T1) is also known as daily observations, and trial two (T2) involves obtaining input data at the end of the fattening period. During T1, daily observations are focused on collecting data from technical characteristics, and in T2, the percentage of death proportions and average increments are observed, calculated, and considered as economic input data. The cost calculation model is used for the calculation of several different technical-economic indicators, which denote the influence of different bedding materials no economic production viability. Favorable economic results were found for slice-dedusted straw, which shows that this kind of alternative bedding material could be the better option.
Ključne besede: bedding materials, feasibility analysis, broiler chicken, cost calculation model
Objavljeno v DKUM: 02.07.2024; Ogledov: 56; Prenosov: 9
.pdf Celotno besedilo (6,19 MB)
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Advanced technologies in logistics engineering : automated storage systems with shuttles integrated with hoisted carriage
Tone Lerher, Primož Bencak, 2022, izvirni znanstveni članek

Opis: This paper presents automated storage systems with shuttles integrated with hoisted carriage for successful application in intralogistics. The first part of the paper presents classic and advanced AVS/RS along with specific intralogistics automation systems known as AutoStore from Swisslog and Skypod from Exotec. The second part of the paper focuses on an advanced system with shuttle vehicles capable of serving multiple tiers of the storage rack. An analytical model for the shuttle vehicles capable of serving multiple tiers of the storage rack is presented, which is based on (i) the sequences of acceleration, constant velocity and deceleration, and (ii) randomised assignment policy. Based on the presented model, the expected Single Command (SC) and Dual Command (DC) travel (cycle) time as well as the throughput performance of the shuttle vehicles capable of serving several tiers of warehouse, could be calculated. A programme code in MATLAB has been presented for the computation of throughput performances of automated storage systems with shuttles integrated with hoisted carriage capable of serving several tiers of the storage rack.
Ključne besede: analytical and numerical model, automated vehicle-storage and retrieval systems AVS/RS, automated warehouses, cycle time and throughput performance, shuttles integrated with hoisted carriage
Objavljeno v DKUM: 26.06.2024; Ogledov: 92; Prenosov: 2
.pdf Celotno besedilo (609,91 KB)
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Outsource or not? : An AHP based decision model for information security management
Luka Jelovčan, Anže Mihelič, Kaja Prislan Mihelič, 2022, izvirni znanstveni članek

Opis: Purpose: Outsourcing information security has proven to be an efficient solution for information security management; however, it may not be the most suitable approach for every organization. This research aimed to develop a multi-criteria decision-making model that would enable organizations to determine which approach to information security management (outsourcing or internal management) is more suitable for their needs and capabilities. Methods: Our study utilized several different research methods. First, the decision criteria were identified by reviewing related work and then selected by information security experts in a focus group. Second, a survey was conducted among information security practitioners to assign the criteria weights. Third, four use cases were conducted with four real-world organizations to assess the usability, ease of use, and usefulness of the developed model. Results: We developed a ten-criteria model based on the analytic hierarchy process. The survey results promote performance-related criteria as more important than efficiency-focused criteria. Evidence from use cases proves that the decision model is useful and appropriate for various organizations. Conclusion: To make informed decisions on approaching information security management, organizations must first conduct a thorough analysis of their capabilities and needs and investigate potential external contractors. In such a case, the proposed model can serve as a useful support tool in the decision-making process to obtain clear recommendations tailored to factual circumstances.
Ključne besede: information security, decision model, analytic hierarchy process, AHP, management, outsourcing
Objavljeno v DKUM: 24.06.2024; Ogledov: 85; Prenosov: 2
.pdf Celotno besedilo (1,97 MB)
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Stališča učencev razredne stopnje dvojezičnih osnovnih šol do dvojezičnega pouka : magistrsko delo
Tajda Varga, 2024, magistrsko delo

Opis: Magistrsko delo je sestavljeno iz dveh zaključnih celot – teoretičnega in empiričnega dela. V teoretičnem delu so predstavljena teoretična izhodišča, in sicer dvojezičnost in dvojezično izobraževanje na območju Prekmurja. Namen empiričnega dela je bil ugotoviti, kakšna stališča imajo učenci tretjega, četrtega in petega razreda dvojezičnih osnovnih šol do dvojezičnega pouka. V raziskavi je bilo ugotovljeno, da imajo učenci pozitivna stališča do dvojezičnega pouka in okolja. Večini anketiranih učencev je všeč, da pouk poteka v obeh jezikih (slovenskem in madžarskem). Kot pomembno ugotovitev izpostavljamo, da učenci menijo, da bodo v okviru osnovnošolskega izobraževanja pridobili ustrezno znanje slovenskega jezika za nadaljevanje šolanja v Sloveniji. Rezultati prav tako potrjujejo, da učenci z madžarščino kot maternim jezikom menijo, da bodo pridobili ustrezno znanje madžarskega jezika za nadaljevanje šolanja na Madžarskem. Učenci so prav tako podali pozitivna stališča do bivanja v dvojezičnem okolju in menijo, da jim dvojezičnost pomaga, da se boljše razumejo s sošolci in vrstniki, ker govorijo oba jezika, to pa je zelo pomembno za njihovo boljše počutje . Lahko povzamemo, da to strinjanje pomeni zavedanje, da jim bo ustrezno znanje obeh jezikov pomagalo pridobiti nove priložnosti za delo in izobraževanje. Pomembno je, da dvojezično izobraževanje spodbuja in omogoča pripadnikom madžarske narodne manjšine, da so uspešno vključeni v izobraževalni proces. Ugotovili smo, da dvosmerni izobraževalni model deluje v okviru izobraževalnega procesa in s tem uči učence sožitja in strpnosti, ne glede na pripadnost.
Ključne besede: Narodnostno mešano območje v Prekmurju, dvojezičnost, model dvojezičnega izobraževanja, dvojezični pouk, dvojezične osnovne šole
Objavljeno v DKUM: 10.06.2024; Ogledov: 105; Prenosov: 10
.pdf Celotno besedilo (2,13 MB)

Role of cAMP in double switch of glucagon secretion
Jan Zmazek, Vladimir Grubelnik, Rene Markovič, Marko Marhl, 2021, izvirni znanstveni članek

Opis: Glucose metabolism plays a crucial role in modulating glucagon secretion in pancreatic alpha cells. However, the downstream effects of glucose metabolism and the activated signaling pathways influencing glucagon granule exocytosis are still obscure. We developed a computational alpha cell model, implementing metabolic pathways of glucose and free fatty acids (FFA) catabolism and an intrinsically activated cAMP signaling pathway. According to the model predictions, increased catabolic activity is able to suppress the cAMP signaling pathway, reducing exocytosis in a Ca2+ -dependent and Ca2+ independent manner. The effect is synergistic to the pathway involving ATPdependent closure of KATP channels and consequent reduction of Ca2+. We analyze the contribution of each pathway to glucagon secretion and show that both play decisive roles, providing a kind of "secure double switch". The cAMP-driven signaling switch plays a dominant role, while the ATP-driven metabolic switch is less favored. The ratio is approximately 60:40, according to the most recent experimental evidence.
Ključne besede: pancreatic alpha cell, glucagon, cAMP, mathematical model, diabetes, cellular bioenergetics
Objavljeno v DKUM: 06.06.2024; Ogledov: 54; Prenosov: 4
.pdf Celotno besedilo (2,58 MB)
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Explosive synchronization dependence on initial conditions : the minimal Kuramoto model
Atiyeh Bayani, Sajad Jafari, Hamed Azarnoush, Fahimeh Nazarimehr, Stefano Boccaletti, Matjaž Perc, 2023, izvirni znanstveni članek

Opis: Transitions from incoherent to coherent dynamical states can be observed in various real-world networks, ranging from neurons to power-grids. These transitions can be explosive or continuous, with far-reaching implications for the functioning of the affected system. It is therefore of the utmost importance to determine the conditions under which such transitions occur. While a lot of studies in literature focused on the dynamical and/or structural network properties that may generate explosive synchronization, here we report on the effects of different initial conditions. To this purpose, we consider the minimal network of Kuramoto oscillator that may display explosive synchronization, and we show that the nature of the transition changes from continuous to discontinuous as phases are differently initialized. We also determine the critical coupling strength for explosive synchronization, which also depends on the initial conditions.
Ključne besede: Kuramoto model, network, explosive synchronization, continuous synchronization
Objavljeno v DKUM: 05.06.2024; Ogledov: 80; Prenosov: 4
.pdf Celotno besedilo (2,23 MB)
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