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1.
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: 36; Prenosov: 2
.pdf Celotno besedilo (2,52 MB)
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2.
Integrating artificial intelligence into a talent management model to increase the work engagement and performance of enterprises
Maja Rožman, Dijana Oreški, Polona Tominc, 2022, izvirni znanstveni članek

Opis: The purpose of the paper is to create a multidimensional talent management model with embedded aspects of artificial intelligence in the human resource processes to increase employees' engagement and performance of the enterprise. The research was implemented on a sample of 317 managers/owners in Slovenian enterprises. Multidimensional constructs of the model include several aspects of artificial intelligence implementation in the organization's activities related to human resource management in the field of talent management, especially in the process of acquiring and retaining talented employees, appropriate training and development of employees, organizational culture, leadership, and reducing the workload of employees, employee engagement and performance of the enterprise. The results show that AI supported acquiring and retaining a talented employees, AI supported appropriate training and development of employees, appropriate teams, AI supported organizational culture, AI supported leadership, reducing the workload of employees with AI have a positive effect on performance of the enterprise and employee engagement. The results will help managers or owners create a successful work environment by implementing artificial intelligence in the enterprise, leading to increased employee engagement and performance of the enterprise. Namely, our results contribute to the efficient implementation of artificial intelligence into an enterprise and give owners or top managers a broad insight into the various aspects that must be taken into account in business management in order to increase employee engagement and enterprise’s competitive advantage.
Ključne besede: artificial intelligence, talent management, employees, employee engagement, performance of the company
Objavljeno v DKUM: 03.07.2024; Ogledov: 66; Prenosov: 2
.pdf Celotno besedilo (1,63 MB)
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3.
The Impact of Cardiorespiratory and Metabolic Parameters on Match Running Performance (MRP) in National-Level Football Players : a multiple regression analysis
Radivoje Radaković, Borko Katanić, Mima Stanković, Bojan Mašanović, Suzana Žilič Fišer, 2024, izvirni znanstveni članek

Opis: The aim of the study was to examine the association between cardiorespiratory and metabolic parameters and match running performance (MRP) in highly trained football players. The sample of participants consisted of 41 national-level football players (aged 23.20 ± 3.40 years, body height 182.00 ± 5.15 cm, and body mass 76.86 ± 6.06 kg) from the Serbian Super league. For the purposes of this research, the following measurements were applied. A maximal multistage progressive treadmill test, with a direct measurement of maximal oxygen consumption (VO2max) (using Fitmate MED, Cosmed, Rome, Italy) was conducted, alongside continuous heart rate monitoring. Capillary blood samples were taken from the hyperemic area using specific test strips, and, after sample collection, lactate concentration was immediately determined using a lactate analyzer. MRP variables were analyzed according to the BioIRC model of motion structure analysis, based on existing standards for profiling movement intensity. The results of multiple regression analysis indicated an association between cardiac parameters and total distance (R2 = 54.3%, p = 0.000), high-speed running (R2 = 46.4%, p = 0.000), and jogging (R2 = 33.6%, p = 0.004). Regression analysis revealed an association between cardiorespiratory parameters and total distance (R2 = 24.8%, p = 0.014), and high-speed running (R2 = 20%, p = 0.039). Meanwhile, no association was found between lactate concentration and running performance. The explanation for these regression analysis results is based on the observation that functional abilities represent significant potential for expressing movement performance, a crucial condition for success in football.
Ključne besede: football players, physical performance, cardiovascular endurance, lactate concentration, maximal heart rate, professional soccer players, running performance analysis, VO2max
Objavljeno v DKUM: 01.07.2024; Ogledov: 38; Prenosov: 2
.pdf Celotno besedilo (1,74 MB)
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4.
Investigating the influences of smart port practices and technology employment on port sustainable performance : the Egypt case
Alaa Othman, Sara El Gazzar, Matjaž Knez, 2022, izvirni znanstveni članek

Opis: In this digital age, sustainable development and competitive advantage of port businesses rely on their capacity to adapt to changing business requirements. Although many previous studies develop a relation between smart port, technology, and sustainable performance, there is an urgent need to address such issues practically among ports, especially in developing countries. Therefore, this research aims at investigating to what extent the Egyptian ports could apply the smart practices and employ technology to achieve and improve sustainable port performance. The Egyptian ports have been selected to serve as an empirical study in this research, assessing their current performance and evaluating their level of readiness and adaptability to smart practices and technology employment. Interviews have been conducted with a group of 10 different stakeholders from government, private sectors, and experts in the field of port management. The interview results showed the main challenges and obstacles that might face the adaptation of technology and sustainable practices in Egyptian ports. This was followed by a focus group with experts in the field to discuss and conclude some procedures that can be adapted to facilitate the implementation of smart practices and technology employment in the Egyptian ports in order to improve their sustainable performance from different perspectives (economic, social, and environmental), deal with the obstacles facing adaptation, and suggest solutions The research adopted ‘content analysis’ for both phases. The research showed the great potential of technology employment to achieve sustainable performance in Egyptian ports while highlighting the main obstacles and challenges that might face the adaptation with suggestions and recommendations to those obstacles in order to adopt the digital transformation towards a sustainable smart port performance. Nevertheless, there are some limitations that could be an open issue to future researchers and practitioners who can benefit from those suggestions to employ technology and adapt sustainable procedures in ports, foster new practical research initiatives to adapt the smart port practices in different countries, and test their impact on port sustainable performance.
Ključne besede: smart port practices, sustainable performance, technology, Egyptian ports
Objavljeno v DKUM: 28.06.2024; Ogledov: 58; Prenosov: 6
.pdf Celotno besedilo (1,29 MB)
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5.
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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6.
Differences in self-regulated learning between gifted students, students with special needs and other students in Slovenian schools
Eva Kranjec, Karin Bakračevič, 2023, izvirni znanstveni članek

Opis: Self-regulated learning strategies play a crucial role in learning progress and academic achievement of different groups of students. The purpose of the present study is to investigate differences in the use of self-regulatory strategies among a sample of 1,495 students, aged 12 to 15 years, representing three groups: gifted students, students with special needs, and other students. The theoretical framework for the study is Pintrich's (1991) model of self-regulated learning. Data were collected using the Motivated Strategies for Learning Questionnaire (MSLQ). Results indicated that gifted students scored significantly higher on the MSLQ subscales of motivation and learning strategies than students with special needs and other peers. Special needs students reported lower intrinsic and extrinsic goal orientation and weaker self-efficacy in learning and achievement than other students. There were no significant differences between these two groups on the MSLQ learning strategies subscales. Positive and statistically significant associations between the MSLQ subscales and final grades in three school subjects (Slovenian, mathematics, and foreign language) were also confirmed. We discuss the implications of our findings for future research and the educational context that contributes most to the development of self-regulated learning in all groups of students.
Ključne besede: self-regulated learning, MSLQ, gifted students, special needs, academic performance
Objavljeno v DKUM: 31.05.2024; Ogledov: 109; Prenosov: 0
.pdf Celotno besedilo (514,48 KB)

7.
The relationship between leadership in BPM and company profitability
Dušan Gošnik, Maja Meško, Igor Stubelj, 2023, izvirni znanstveni članek

Opis: This paper studies the relationship between leadership as an activity of business process management (BPM) and company performance. Business process data about leadership and business processes in SMEs were collected via questionnaires on the population of 3007 SMEs in Slovenia. Aspects of leadership such as the involvement of employees, middle management, customers and suppliers were studied. The financial data of the SMEs of the sample were obtained from publicly available financial statements to assess relative residual income profitability ROEr and ROEa. Data analysis was performed using Bartlett’s, Kaiser–Maier–Olkin and nonparametric Mann–Whitney U tests. We confirmed a positive relationship between employee involvement in leadership as an activity of BPM and company profitability. It was proved that companies that involve employees and middle management in improving core business processes to a greater degree are more profitable. Intense involvement of employees in changes in core business processes results in higher company profitability, which has been detected by the higher risk-adjusted profitability measure ROEa. Companies that involve middle management to a greater degree by leading employees based on their interests are more profitable. The results are important for managers as decision-makers and other company stakeholders, especially those responsible for business process improvements. Theoretical and practical implications and further research possibilities are discussed.
Ključne besede: management, leadership, BPM, risk-adjusted profitability measures, SME, performance
Objavljeno v DKUM: 16.04.2024; Ogledov: 144; Prenosov: 6
.pdf Celotno besedilo (529,77 KB)
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8.
Resveratrol food supplement products and the challenges of accurate label information to ensure food safety for consumers
Maja Bensa, Irena Vovk, Vesna Glavnik, 2023, izvirni znanstveni članek

Opis: The food supplement market is growing as many consumers wish to complement their nutrient intake. Despite all the regulations in place to ensure food supplements safety, there are still many cases of irregularities reported especially connected to internet sales. Twenty resveratrol food supplement products sold on the Slovenian market were evaluated on their compliance of declared vs. determined resveratrol content, as well as the compliance of labels with the European Union (EU) and Slovenian regulatory requirements. Both the ingredient contents and food information are important parts of food safety. Analyses of 20 food supplements performed using high-performance thin-layer chromatography (HPTLC) coupled with densitometry showed that 95% of products had contents different from what was declared and 55% of products contained higher contents than declared. In 25% of the products the determined content per unit exceeded the maximum level (150 mg/day) specified in EU novel food conditions for food supplement with trans-resveratrol. Evaluation of the 20 food supplement labels included mandatory and voluntary food information, food supplement information, novel food information, health claims and nutrition claims. Most labels contained the necessary information, but multiple errors were observed ranging from typos to misleading practices. From a food safety perspective there is still a lot of improvement needed in the field of food supplements.
Ključne besede: trans-resveratrol, dietary supplements, food safety, regulation, labels, health claims, nutrition claims, novel foods, high-performance thin-layer chromatography, HPTLC
Objavljeno v DKUM: 15.04.2024; Ogledov: 164; Prenosov: 8
.pdf Celotno besedilo (4,06 MB)
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9.
Innovative approaches to wear reduction in horizontal powder screw conveyors : a design of experiments-guided numerical study
Marko Motaln, Tone Lerher, 2024, izvirni znanstveni članek

Opis: Numerical simulations play a vital role in the modern engineering industry, especially when faced with interconnected challenges such as particle interactions and the structural integrity of conveyor systems. This article focuses on the handling of materials and emphasizes the importance of using parametric numerical analysis to improve efficiency, reduce wear, and enhance the structural integrity of horizontal screw conveyors. Through the utilization of the Design of Experiments, we systematically investigated critical parameters such as screw pitch, clearance, wear, rotational velocity, and additional structural factors. This examination was carried out within a well-defined parametric framework, utilizing a combination of software tools provided by the Ansys suite and Minitab. The findings demonstrate the effectiveness of the Design of Experiments analysis in achieving improved performance and provide valuable insights for engineers and researchers involved in the design of conveyor systems. Furthermore, this comprehensive approach clarifies how conveyor systems respond to changes in parameters and highlights the complex interaction between transported particles and the conveyor system. We present a detailed analysis that clarifies the complex relationships and dependencies among different parameters, providing engineers and researchers with valuable insights. By understanding the interactions of these factors, the methodology provides not only results but also a strategic framework for advancing conveyor system design and engineering practices.
Ključne besede: discrete element method, design optimization, horizontal screw conveyors, parametric study, conveying equipment, bulk handling, bulk solids, abrasive wear, screw conveyor, FEA, performance analysis
Objavljeno v DKUM: 09.04.2024; Ogledov: 217; Prenosov: 31
.pdf Celotno besedilo (10,51 MB)
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10.
Leadership and managerial challenges to ensure agile management as a method to enable business success : a Delphi study of the Slovenian health organisations
Vasja Roblek, Vlado Dimovski, Kristjan Jovanov Oblak, Maja Meško, Judita Peterlin, 2024, izvirni znanstveni članek

Opis: Purpose This study aims to apply the Delphi method to explore the possibilities for implementing agility management concepts in Slovenian health-care organisations. Design/methodology/approach The research is based on a qualitative Delphi study encompassing 15 employees in different Slovenian health-care organisations. Findings Slovenian health-care organisations need to be more agile currently. For this reason, it is necessary to begin with organisational changes and organisational learning concepts to educate employees about the meaning and content of agile processes. It is essential to ensure that accepting employee mistakes and offering help to employees becomes normal practice, and it is necessary to ensure the greater trust of the management towards the employees. Originality/value The research empowers health-care professionals with new management and leadership concepts, such as agile management, sustainable leadership and leadership development methods in health care.
Ključne besede: entrepreneurship, leadership, company performance, business efficiency, agile management, delphi study, health-care organisations, organisational transformation, Slovenia, change management, health services sector
Objavljeno v DKUM: 08.04.2024; Ogledov: 217; Prenosov: 9
.pdf Celotno besedilo (588,83 KB)
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