Iskanje po katalogu digitalne knjižnice

Opis: The construction sector emphasises circular economy principles that prioritise eco-design strategies, particularly the usage of secondary raw materials. The growing interest in using industrial hemp as a sustainable building material in the construction sector is driven by its versatility. Industrial hemp has been preferential in comparison to other traditional building materials due to its lower global warming impact. Claims regarding the environmental benefits of hemp-containing construction materials based on the single impact category could be misleading; therefore, life cycle assessment (LCA) studies including multiple environmental indicators should be implemented. This study aims to compare two alternative wall designs regarding their environmental impacts. The comparative LCA study for hempcrete and prefabricated walls used in residential buildings was assessed using IPCC and ReCiPe life cycle impact assessment methods. The study highlighted a significant discrepancy depending on the number of environmental indicators considered, as well as between characterised and weighted LCA results. A hempcrete wall was recognised as a slightly (13.63%) better alternative when assessed by the single-issue IPCC method, while its total burden assessed by the ReCiPe method was recognised to be significantly (2.78 times) higher. Based on the results from this case study, regulators could re-evaluate the appropriateness of reporting LCA results solely on the midpoint level, particularly when limited to a single impact indicator, while producers in the construction sector should recognise the threat of greenwashing when reporting using a single impact indicator only.
Ključne besede: sustainable materials, lifecycle assessment, hempcrete, prefabrication, case study
Objavljeno v DKUM: 24.09.2025; Ogledov: 0; Prenosov: 8
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Opis: This paper aims to explore the patterns in micro, small-, and medium-sized enterprises’ (MSMEs) digital transformation journey during recent years. Using an emergent concurrent mixed-methods approach, we combined insights from six in-depth interviews with MSME managers and owners with survey data from 66 MSMEs. The findings reveal major inhibitors and accelerators of MSMEs’ digital transformation and demonstrate how they cope with them by engaging in digitalisation actions. This study also provides insights into how inhibitors, accelerators, and digitalisation actions vary across MSME sizes. While an increased adoption of digital technology was observed among the participating MSMEs, this study identifies three distinct digital transformation paths: necessary, experimental, and committed. Each path is shaped by a unique combination of inhibitors and accelerators. From the practical perspective, this research provides insights for MSME managers and owners on how to tailor their digital transformation efforts to their unique inhibitors and accelerators. In addition, our insights can help policy makers to promote the digital transformation of MSMEs through appropriate measures and support mechanisms tailored to the specific needs of smaller enterprises.
Ključne besede: digital transformation, turbulent environment, micro, small- and medium-sized enterprises, case study
Objavljeno v DKUM: 25.08.2025; Ogledov: 0; Prenosov: 5
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Opis: The study deals with teaching and learning the addition of natural numbers up to 20 in the first two years of primary school. The first part presents the theoretical background for addition of natural numbers, the procedural and conceptual approach to addition, and the theory of the additive triad. The causes of the difficulties some children have with the field of the addition of natural numbers are outlined, and the issue of reduced cognitive efficiency is briefly introduced as one of the causes. The second part of the study presents a case study of a girl (7 years old) who experienced difficulty in learning addition. The approaches to and results of remedial tutoring completed by the girl are described. In the discussion, the issue of the addition of natural numbers is incorporated into a broader pedagogical context.
Ključne besede: learning addition, pupils with learning difficulties in mathematics, cognitive efficiency, natural numbers, additive triad, case study
Objavljeno v DKUM: 27.06.2025; Ogledov: 0; Prenosov: 6
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Opis: The aim of this research was to identify energy saving instructions effect on household’s electricity consumption. The research was conducted using Randomized Control Trials, which implied defining a treatment and control group on a sample of 330 households. The research was carried out in Republic of Serbia, where electricity prices are the lowest in Europe and electricity is used inefficiently. For quantitative analysis of data, the Difference in Difference method was used, which compares the changes in electricity consumption over time between the treatment and control group and estimates the overall impact of the energy saving instructions. The research showed that in situations where electricity price is very low, energy saving information does not have the significant impact on change in consumer behavior. However, inefficient use of electricity might be due to the different efficiency of heating devices used. Not only that the low impact of information on energy saving habits may be a consequence of the low will to change habit, but also of the impossibility to change the habit (unless changing the heating device, but this implies expenditures). Results can be used for consideration of changes in organization and regulation of the electricity market in all South Eastern European countries (SEE).
Ključne besede: electricity consumption, consumersʹ behavior, randomized control trials method, difference method, case study, Serbia
Objavljeno v DKUM: 10.10.2024; Ogledov: 0; Prenosov: 7
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Opis: Agile transformation is identified as a facilitator to keep pace with frequent changes within product development. Although initial research exists, the empirical literature on the implementation process of the agile approach, specifically using pilot projects as a change strategy, is scarce. The purpose of this article is to contribute to closing this gap by investigating into effects of piloting agile change projects. To shed light on agile pilots a project within the context of mechatronic system development in the high-tech industry was accompanied over six months. After the initiation of the members and a period of practicing agile a survey was performed. The interviewed team members are bringing up interesting findings, as although they had a different understanding of agile at the beginning of the pilot, they recognized agile values, principles and methods as supportive to the products cycle and specifically development time. Further findings are indicating that professional third-party support is a key success factor. Also piloting, as a change strategy for agile adoption, is proven to be supportive. Although piloting is proven a supportive strategy, the downsides, such as limited scalability caused by extraordinary setups, are identified and analyzed. The limiting factor of this single-case study is the small sample size of data due to the intention of the pilot project to limit impact and risk on the organization.
Ključne besede: agile product development, organizational transformation, agile adoption, pilot project, case study
Objavljeno v DKUM: 01.09.2023; Ogledov: 37468; Prenosov: 58
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