1. Eco-design processes in the automotive industryEwelina Staniszewska, Dorota Klimecka-Tatar, Matevž Obrecht, 2020, izvirni znanstveni članek Opis: Every year approximately 70 million passenger cars are being produced and automotive industry is much bigger then just passenger cars. The impact of automotive industry on the environment is tre-mendous. From extracting raw materials through manufacturing and assembly processes, exploitation of the vehicle to the reprocessing irreversible, extensive environmental damage is done. The goal of this study is to show how implementing eco-design processes into supply chain management can re-duce the impact of automotive industry on the environment by e.g. reducing the use of the fuel, in-creasing the use of recycled materials. Focus is on evaluation of current state, environmental impacts and potential improvements for design, raw materials, manufacturing and distribution and end-of-life phase.
Ključne besede: eco-design processes, automotive industry, supply chain management, business processes, cleaner production, environmental impacts, logistics
Objavljeno v DKUM: 18.12.2024; Ogledov: 0; Prenosov: 2
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2. Information communication technology and supply chain efficiency in manufacturing SMES in Bulawayo Province in ZimbabweSithokozile Bafana, Simba Mutsvangwa, Felix Chari, 2024, izvirni znanstveni članek Opis: There has been a global plummeting trend of failure in most manufacturing Small and Medium Enterprises (SMEs) due to purported supply chain inefficiency. It is imperative for clothing manufacturing SMEs in developing nations like Zimbabwe, with reference to Bulawayo Province, which lacks digitization to integrate Information and Communication Technology (ICT) solutions into their supply chain operations to improving efficiency and maintain competitiveness in the global market. Thus, the purpose of the study was to evaluate ICT and supply chain efficiency in the clothing manufacturing SMEs in Bulawayo Province. Employing the pragmatic approach, data were collected using semi-structured questionnaires from a sample of 107 from a total population of 147 that were triangulated with 15 interviews from clothing manufacturing SMEs in Bulawayo. A simple linear regression analysis through Ordinary Least Squares was conducted to test the relationship between ICT and supply chain efficiency. The results show that ICT has a positive and statistically significant effect on cost performance, agility and delivery performance in Bulawayo clothing manufacturing SMEs. By prioritizing ICT adoption, managers can achieve better cost management, increased responsiveness to market demands, and enhanced delivery capabilities. It is recommended that clothing manufacturing SMEs in Bulawayo should embrace the ICT. Further studies should examine the relationship between ICT and supply chain efficiency in manufacturing SMEs across different industries and nations.
Ključne besede: information and communication technology, supply chain efficiency, SMEs (small and medium enterprises), material requirement planning
Objavljeno v DKUM: 17.12.2024; Ogledov: 0; Prenosov: 3
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3. Developing a framework for closed-loop supply chain and its impact on sustainability in the petrochemicals industryLobna Tag el Sheikh, Rebeka Kovačič Lukman, 2022, izvirni znanstveni članek Opis: Companies rely on formulating, implementing, and monitoring strategies in social, environmental and economic aspects to ensure that they achieve their goals and keep abreast of developments related to sustainability requirements. Therefore, our study develops a system to integrate the closed-loop supply chain approach in the petrochemical sector. The research follows the quantitative-based approach by collecting data through a questionnaire directed to employees in the supply chain departments, including 230 questionnaires that were collected. Correlation and structural equation models (SEM) were used. This technique consists of multiple regression analysis and factor analysis and analyses the structural relationship between the underlying structures and the measured variables. The results indicated a significant relationship between the supply chains that have a loop from the following perspectives: economic motivations, customer awareness, environmental legislation, and sustainability. By increasing financial reasons, customer awareness and environmental legislation, sustainability will increase as they all move in the same direction. Therefore, the overall effect of a closed-loop supply chain is positive and significant.
Ključne besede: closed-loop supply chain, petrochemicals, cost effectivity, product stewardship, multiple regression analysis, factor analysis, sustainability
Objavljeno v DKUM: 12.12.2024; Ogledov: 0; Prenosov: 2
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4. Closed-loop supply chain and impacts on sustainability, comprehending logistics sustainability capacity building : dialogues, paradoxes and innovationLobna Tag el Sheikh, 2024, doktorska disertacija Opis: This thesis focuses on creating a framework for evaluating the influence of closed-loop on supply chain performance in the case of petrochemical industry in the Egyptian context, with a focus to test the influence of sustainability on the supply chain performance, to investigate the function of sustainability as a mediator between reverse logistics and supply chain performance, and evaluate the impact of closed-loop supply chains (environmental legislation, customer awareness and economic motivations) on sustainable development. The gathering of primary data helped the current study's goals get accomplished. Surveys are used to gather data to estimate how reverse logistics impacts the effectiveness of the supply chain. The employees of supply chain companies in Egypt received the surveys from the researcher. The study's findings indicate a strong link between sustainability and reverse logistics. Additionally, there is a marginally significant correlation between supply chain performance and sustainability. The outcomes also showed that the closed-loop supply chain has little influence on supply chain efficiency and sustainability. Furthermore, there is a marginally significant association between supply chain effectiveness and reverse logistics. The results also revealed that sustainability has a function in supply chain performance and reverse logistics.
Ključne besede: closed loop-supply chain, reverse logistics, supply chain performance, sustainability, logistics, capacity building
Objavljeno v DKUM: 16.10.2024; Ogledov: 0; Prenosov: 3
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5. Comparison of microbial populations in saliva and feces from healthy and celiac adolescents with conventional and molecular approaches after cultivation on gluten-containing media : an exploratory studyTilen Seničar, Andraž Kukovičič, Valerija Tkalec, Aleksander Mahnič, Jernej Dolinšek, Maja Rupnik, 2021, izvirni znanstveni članek Opis: Microbes capable of metabolizing gluten are common in various parts of the intestinal tract. In this study, saliva and fecal samples were obtained from 10 adolescents (13-18 years of age), five of which had celiac disease (CD) and five of which were healthy volunteers (HV). Culture-enriched saliva and fecal samples were compared with molecular profiling, and microorganisms displaying lysis zones on gluten-containing media (i.e., gluten-degrading microorganisms; GDMs) were isolated. In total, 45 gluten-degrading strains were isolated, belonging to 13 genera and 15 species, including Candida albicans and Veillonella. GDMs were more common in HVs compared to CD patients and more diverse in saliva compared to feces. In saliva, GDMs showed partial overlap between HVs and CD patients. Bacterial communities in fecal samples determined with amplicon sequencing significantly differed between CD patients and HVs. Overall, 7-46 of all operational taxonomic units (OTUs) per sample were below the detection limit in the fecal samples but were present in the cultivated samples, and mainly included representatives from Lactobacillus and Enterococcus. Furthermore, differences in fecal short-chain fatty-acid concentrations between CD patients and HVs, as well as their correlations with bacterial taxa, were demonstrated.
Ključne besede: gluten-degrading microorganisms, veillonella, candida, short-chain fatty acids, celiac disease, microbiota, sequencing
Objavljeno v DKUM: 14.10.2024; Ogledov: 0; Prenosov: 18
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6. Agrowellness goods distribution in the light of sustainability : the consumer perspective and the case of slovenia’s eastern cohesion regionLazar Pavić, Milica Rančić Demir, 2024, izvirni znanstveni članek Opis: This study explores the distribution of agrowellness products and services from a sustainability perspective, focusing on consumer perceptions in Slovenia’s Eastern Cohesion Region. Utilizing an empirical approach through an online survey, the research assesses how sustainable lifestyle practices influence the frequency of agrowellness goods consumption and their perceived availability. The study employs structural equation modeling (SEM) to test four hypotheses, revealing that sustainable lifestyle practices positively affect the frequency of agrowellness product usage, enhancing the perception of product availability. A critical novel contribution of the research is identifying sociodemographic factors as significant moderators of these relationships, offering more profound insights into consumer behavior. Additionally, the frequency of use mediates the link between a sustainable lifestyle and perceived availability, with gender, age, education, and the place of residence as essential moderators. The findings contribute to theory and practice, offering actionable recommendations for marketing and distribution strategies to enhance the accessibility and appeal of agrowellness products. These insights provide valuable guidance for stakeholders in agriculture, rural development, and wellness tourism, with broader implications for policy development aimed at promoting sustainable lifestyles and supporting rural economies.
Ključne besede: agrowellness, sustainability, consumer behavior, rural development, wellness tourism, distribution, supply chain, Slovenia
Objavljeno v DKUM: 11.10.2024; Ogledov: 0; Prenosov: 1
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8. Defining a sustainable supply chain for buildings Off-Site envelope thermal insulation solutions : proposal of a methodology to investigate opportunities based on a context analysisMiriam Benedetti, Carlos Herce, Matteo Sforzini, Tiziana Susca, Claudia Toro, 2024, pregledni znanstveni članek Opis: External wall thermal insulation is one of the most effective solutions on the market to increase energy efficiency in the built environment. Off-Site Construction (OSC), through better control of the various parameters involved, can bring important advantages, such as the reduction of construction time, the improvement of product and process quality, etc. In the last years, the rapidly growing demand for thermal insulation systems, stimulated also by tax incentives, has generated a unique situation in Italy compared to the rest of Europe, also leading to a considerable fragmentation of the supply chain with several players involved (component and system manufacturers, distributors, and installers). The complexity of such context makes Italy an extremely challenging and insightful case study for a supply chain and sustainability study, also considering the fact that the energy efficiency of the Italian building stock represents a crucial challenge to achieve the country's energy saving goals since 40% of final energy consumption derives from buildings and 75% of the building stock presents a low energy performance (energy labels E, F and G). This article presents both an analysis of the Italian market of manufacturers of building envelope thermal insulation solutions, highlighting the different players in the supply chain in terms of number, type, and marketed products and solutions, and a focus on sustainable and recycled materials. The study also aims to define a methodology to investigate the state of play and opportunities for industrialisation of this market and its bottlenecks. In the article, a questionnaire is proposed to collect information and opinions on the spread of OSC and the perception of companies and professionals regarding the advantages and disadvantages of industrializing the sector. A first validation of the survey is presented in the form of industrial focus groups.
Ključne besede: supply chain sustainability, industrial energy efficiency, off-site construction, construction industrialisation, sustainable building materials, modular buildings
Objavljeno v DKUM: 01.10.2024; Ogledov: 0; Prenosov: 3
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9. A novel off-chain channel model for blockchain-based solutions : doctoral dissertationBlaž Podgorelec, 2024, doktorska disertacija Opis: This dissertation introduces a novel off-chain channel model aimed at enhancing existing solutions to address scalability challenges in blockchain technology. It begins with an overview of the problem statement, research objectives, methodology, and potential limitations before establishing a thesis and hypotheses. A comprehensive theoretical background on blockchain technology, scalability solutions, and the off-chain channel approach ensures a common understanding of the topic. To provide a thorough overview of existing off-chain channel solutions and identify and categorize their limitations, we conducted a systematic literature review, identifying 65 relevant studies. Through detailed analysis, six categories of solutions and six implemented off-chain channel solutions were identified. Five primary categories of limitations were also identified: routing, flexibility, privacy, network properties, and online assumptions, some with sub-limitations. To address these limitations, a new off-chain channel model, named ”Off-chain Channel as a Service,” is proposed, featuring four core design decisions: eliminating the need for an off-chain channel network, assuming blockchain properties by design, introducing a trustworthy service, and enabling flexibility by design. Validation and evaluation of the proposed model employ case-study and experiment research methods to confirm compliance with off-chain channel principles, validate it against identified limitations of existing solutions, analyze its impact on blockchain scalability, and assess its applicability across blockchain platforms. For this purpose, two off-chain payment channel prototype solutions have been implemented, each using a different underlying blockchain platform, namely Ethereum and Solana. Moreover, the proposed model’s security evaluation using risk-analysis methodology is also provided. Qualitative and quantitative analysis demonstrates that the proposed off-chain channel model adheres to off-chain channel principles, improves most identified limitations of existing solutions, positively impacts blockchain scalability, and can be applied to different blockchain platforms supported by smart contracts.
Ključne besede: blockchain, distributed ledger technology, smart contracts, scalability, off-chain channel, payment channel
Objavljeno v DKUM: 01.10.2024; Ogledov: 0; Prenosov: 33
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