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1.
Blockchain technology adoption for improved environmental supply chain performance : the mediation effect of supply chain resilience, customer integration, and green customer information sharing
Summer K. Mohamed, Sandra Haddad, Mahmoud Barakat, Bojan Rosi, 2023, original scientific article

Abstract: Due to the complexity of building supply chain resilience (SCR) towards long-term environmental sustainability amendments, the use of emerging technologies such as Blockchain Technology (BCT) can be adopted as an innovative tool to enhance the sustainability and resilience of supply chains, especially in uncertain environments. Drawing on the Knowledge-Based View (KBV) and Dynamic Capability View (DCV), this research aims to demonstrate how the adoption of BCT can enhance the environmental supply chain performance (SCP). A total of 603 valid surveys were collected from respondents from manufacturing and service organizations in Egypt. The collected data were analyzed using structural equation modelling, and results revealed that BCT adoption alone had a negative direct impact on environmental SCP. However, when this relationship was mediated by SCR and sequentially mediated by customer integration and green customer information sharing, the results were positive. This research presents insights on how organizations can adapt to dynamic business environments, and, in addition, it extends the theories of KBV and DCV in an empirical contribution by filling the gap in understanding regarding how environmental SCP can be enhanced through the adoption of BCT.
Keywords: blockchain technology, environmental, supply chain, performance, resilience, customer integration, green, information sharing
Published in DKUM: 03.04.2024; Views: 161; Downloads: 7
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2.
Integrating social dimensions into future sustainable energy supply networks
Matevž Obrecht, Yigit Kazancoglu, Matjaž Denac, 2020, original scientific article

Abstract: Environmental protection and sustainable development have become an inevitable trend in many areas, including the energy industry. The development of energy supply networks is strongly correlated with the economics of energy sources as well as ecological and socio-political issues. However, the energy supply network is often distant from the social perspective. This paper therefore combines examination of perceptions and awareness of general public (web-based questionnaire) and top energy experts (a Delphi survey) on the energy supply network and identifies their potential integration in energy supply decision making processes. The results showed that public should be better informed as well as integrated into designing energy supply network as the prosumers gain power and the energy suppliers will no longer dominate the market. Public actors are ready to shape sustainable energy supply and also willing to pay 5.8% more for a sustainable energy supply. The majority are prepared to invest in renewable energy supply network close to their place of residence. Another result is that the public is calling for a shift in priority towards more sustainable and socially friendlier energy supply rather than focusing mainly on the economic and technical perspectives.
Keywords: energy supply, supply networks, sustainable energy, public perception, social integration, supply chain management
Published in DKUM: 19.02.2024; Views: 207; Downloads: 8
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3.
IoT and satellite sensor data integration for assessment of environmental variables: a case study on NO2
Jernej Cukjati, Domen Mongus, Krista Rizman Žalik, Borut Žalik, 2022, original scientific article

Abstract: This paper introduces a novel approach to increase the spatiotemporal resolution of an arbitrary environmental variable. This is achieved by utilizing machine learning algorithms to construct a satellite-like image at any given time moment, based on the measurements from IoT sensors. The target variables are calculated by an ensemble of regression models. The observed area is gridded, and partitioned into Voronoi cells based on the IoT sensors, whose measurements are available at the considered time. The pixels in each cell have a separate regression model, and take into account the measurements of the central and neighboring IoT sensors. The proposed approach was used to assess NO2 data, which were obtained from the Sentinel-5 Precursor satellite and IoT ground sensors. The approach was tested with three different machine learning algorithms: 1-nearest neighbor, linear regression and a feed-forward neural network. The highest accuracy yield was from the prediction models built with the feed-forward neural network, with an RMSE of 15.49 ×10−6 mol/m2.
Keywords: Internet of Things, IoT, remote sensing, sensor integration, machine learning, ensemble method
Published in DKUM: 22.09.2023; Views: 403; Downloads: 16
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4.
Tourism demand in Tunisia : a VECM approach
Djamal Dekkiche, 2023, original scientific article

Abstract: This research aimed to study the determinants of tourism demand in Tunisia from 1995 to 2019 with four independent variables: gross domestic product, consumer price index, the real exchange rate, and air transport passengers carried. The research employed the Unit root test, Co-integration test, and Vector Error Correction model (VECM) to examine the variables' short- and long-run relationship dynamics. The results show that co-integrating relations exist among the variables; all independent variables negatively impact tourism demand except Air transport. Depending on the results obtained, policymakers should be aware of the negative effect of the country's political instability on the extent of external tourism demand. In this sense, the government must restore political stability to encourage tourists to visit Tunisia. Future studies should consider factors such as the economy's trade openness and oil prices.
Keywords: tourism industry, tourism demand, VECM, Co-integration, Tunisia
Published in DKUM: 05.09.2023; Views: 208; Downloads: 3
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5.
Editorial: combined water and heat integration in the process industries
Elvis Ahmetović, Ignacio E. Grossmann, Zdravko Kravanja, François Marechal, Jiri Klemeš, Luciana E. Savulescu, Dong Hongguang, 2022, preface, editorial, afterword

Abstract: Water and energy are resources that are used in large quantities in different sectors (domestic, agricultural, and industrial). Based on data on global water and energy consumption in the world over the recent past, as well as forecasts for the coming years, a continuous trend of increasing water and energy consumption can be observed. ...
Keywords: water integration, heat integration, systematic methods, pinch analysis, mathematical programming, heat-integrated water networks, optimisation, process industry
Published in DKUM: 18.08.2023; Views: 354; Downloads: 24
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6.
Acceptance of refugees from the Middle East and Ukraine in EU and Slovenia : Bashelor's thesis undergraduate study programme Criminal justice and security, B. A.
Amir Hossein Emadi, 2023, undergraduate thesis

Abstract: The most common definition of migration is "the movement of people for various reasons, including war, persecution, violation of human rights, etc., from one country, place, or location to another". This diploma is presenting definitions of migration, defining the types and reasons for migration, and examining the two largest mass immigrations in Europe after World War II. This thesis presents the differences in how refugees are accepted and integrated in EU countries and how these people travel to European countries. This diploma focuses on mass immigration in the EU in particular in the years 2015 and 2022 when millions of people from the Middle East and Ukraine sought refuge in EU countries. Some statements of European government and media regarding refugees from the Middle East and Ukraine are highlighted. The thesis is highlighting the fundamental and major differences in terms of treatment and acceptance of refugees from Ukraine and Middle Eastern countries by EU countries and identifying the reasons for these differences. The interviews were conducted with refugees from Ukraine and from the Middle East and also with integration counsellor from Government Office for the Support and Integration of Migrants to show how the differences will affect the lives of refugees during the migration process and in the host country, especially in the Republic of Slovenia.Diplomsko delo osvetljuje temeljne in bistvene razlike v obravnavi in sprejemanju beguncev iz Ukrajine in Bližnjega Vzhoda s strani držav Evropske Unije in identificira razloge za te razlike. Opravljeni so bili intervjuji z beguncema iz Ukrajine in Bližnjega Vzhoda in s svetovalko iz Urada Vlade Republike Slovenije za oskrbo in integracijo migrantov, da bi pokazali, kako te razlike vplivajo na življenja beguncev med procesom migracije in v državi gostiteljici, še posebej v Republiki Sloveniji.
Keywords: refugees, Ukraine, Middle East, integration, journey
Published in DKUM: 11.08.2023; Views: 450; Downloads: 66
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7.
Sustainability topics integration in supply chain and logistics higher education : where is the Middle East?
Maja Rosi, Matevž Obrecht, 2023, original scientific article

Abstract: The global logistics industry has grown significantly in the last decade and has become essential to global business activities. In addition, the logistics industry is vital in transportation, urbanization in the Middle East, and transshipment through the Middle East. Due to their increasing importance and size, there is an increasing demand for adequately qualified people capable of managing the logistics systems and supply chains holistically and sustainably to avoid problems caused by unsustainable practices in mobility, transport, and supply chains. However, it is unclear whether the logistic and supply chain education of future leaders, managers, and engineers will follow SDG goals, the rise of new trends, and green technologies or lag behind. This paper pioneered a systematic approach and analyzed Middle Eastern countries regarding their sustainability integration into higher education programs related to supply chain management and logistics studies. It revealed enormous differences among countries and a lack of sustainability topics in most studied countries. Some countries are also significantly more oriented toward partial logistics challenges such as transport efficiency instead of sustainable supply chains, which are becoming critical challenges for the near future and must be accompanied by formal and life-long learning on sustainability-related topics. The circular economy and corporate social responsibility are especially neglected. It was also revealed that sustainability integration in higher education does not correlate with sustainability scores and the ranking of countries within the sustainability index.
Keywords: sustainability integration, Middle East, supply chain management, responsible logistics, education for SDGs
Published in DKUM: 25.07.2023; Views: 311; Downloads: 37
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8.
Development and validation of the Work-home-integration questionnaire (WHIQ)
Andrea Noja, Bettina Kubicek, Nejc Plohl, Sara Tement, 2022, original scientific article

Abstract: The boundaries between work and private life are gradually blurring. More and more employees are involved in work during leisure time through cognitions, emotions or behaviours, in both negative and positive ways. This so-called work-home integration (WHI) can, on the one hand, hampers the necessary recovery from work and result in strain but, on the other hand, also restores resources and result in beneficial outcomes. In order to enhance our understanding of WHI and capture all its different forms, we suggest a new conceptualisation and measure of WHI. We therefore developed and validated the Work-Home Integration Questionnaire (WHIQ) in English, German and Slovene simultaneously using two cross-sectional studies (Study 1: N = 848; Study 2: N = 555) and a two-wave longitudinal study with a time lag of 1 month (Study 3: N = 379). Confirmatory factor analysis confirmed a three-factor structure with (1) negative cognitive-affective involvement, (2) positive cognitive-affective involvement and (3) behavioural involvement. Moreover, the WHIQ showed measurement invariance across the three languages and the results provide evidence for convergent, discriminant and incremental validity. Overall, the WHIQ is a reliable, valid and short measure to assess the extent to which employees are involved in work during leisure time.
Keywords: work-home integration, burnout, well-being, work-family conflict, scale validation
Published in DKUM: 17.07.2023; Views: 531; Downloads: 73
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9.
Challenges of teaching primary school migrant students basic English
Patricija Obrovnik, 2021, master's thesis

Abstract: Educational institutions carry an immense responsibility as the key institutions where migrant children start their integration process. Educational workers at schools are the ones that actualize government policies in their classrooms and directly influence migrant students’ integration process and monitor their progress. Teachers need proper education, training, and support to be able to work with migrant students successfully. Our master thesis focused and researched issues and problems teachers encounter when teaching migrant students English in the first triennium of primary school. In the first part of our thesis we defined migrant students and presented legislation and national guidelines surrounding migrant student integration. We introduced the immigration situation in Slovenska Bistrica, where a proportionally large Kosovo minority lives, and the two primary schools where we conducted our research. In the empirical part of our thesis, we interviewed four teachers that teach English in the first triennium of primary school about their experience with teaching in multicultural classrooms. Teachers rely on visual aids and mime to teach English through group activities where students actively participate through song, dance and games. The analysis of interviews showed that even though all English lessons are conducted in English, migrant students’ lack of Slovenian knowledge and their lack of socialization present the biggest problems interviewed teachers face.
Keywords: migrant students, migrant student integration, challenges of migrant student integration in the English classroom, English in the first triennium of primary school, English teachers
Published in DKUM: 27.07.2021; Views: 1216; Downloads: 60
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10.
Call recording with the help of the integration of systems Cisco Unified Communications Manager and Asterisk
Simon Ocvirk, 2019, undergraduate thesis

Abstract: At the beginning of the thesis, we present the integrating systems Cisco Unified Communications Manager and Asterisk, which will be used for call recording. We later introduce the development frameworks Laravel and Angular, with the help of which the Telephone Interface Communications Manager is built upon. We have researched the methods of encryption and decryption and how we would apply these for development of our own solution, which will prevent unauthorized managing with files. Finally, we analysed options for limiting access to files and developed an integrated solution for a secure recording and managing with call recordings.
Keywords: call recording, Asterisk, Cisco, Cisco Unified Communications Manager, integration of systems
Published in DKUM: 08.11.2019; Views: 1161; Downloads: 131
.pdf Full text (3,04 MB)

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