Iskanje po katalogu digitalne knjižnice

Opis: This article presents managed honey bee colony loss rates over winter 2018/19 resulting from using the standardised COLOSS questionnaire in 35 countries (31 in Europe). In total, 28,629 beekeepers supplying valid loss data wintered 738,233 colonies, and reported 29,912 (4.1%, 95% confidence interval (CI) 4.0%4.1%) colonies with unsolvable queen problems, 79,146 (10.7%, 95% CI 10.5%10.9%) dead colonies after winter and 13,895 colonies (1.9%, 95% CI 1.8%2.0%) lost through natural disaster. This gave an overall colony winter loss rate of 16.7% (95% CI 16.4%16.9%), varying greatly between countries, from 5.8% to 32.0%. We modelled the risk of loss as a dead/empty colony or from unresolvable queen problems, and found that, overall, larger beekeeping operations with more than 150 colonies experienced significantly lower losses (p<0.001), consistent with earlier studies. Additionally, beekeepers included in this survey who did not migrate their colonies at least once in 2018 had significantly lower losses than those migrating (p<0.001). The percentage of new queens from 2018 in wintered colonies was also examined as a potential risk factor. The percentage of colonies going into winter with a new queen was estimated as 55.0% over all countries. Higher percentages of young queens corresponded to lower overall losses (excluding losses from natural disaster), but also lower losses from unresolvable queen problems, and lower losses from winter mortality (p<0.001). Detailed results for each country and overall are given in a table, and a map shows relative risks of winter loss at regional level.
Ključne besede: Apis melliefera, mortality, colony winter losses, queens, queen replacement, monitoring surveys, beekeeping, citizen science
Objavljeno v DKUM: 20.11.2025; Ogledov: 0; Prenosov: 0
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Opis: In this study, we present a professional development programme for teachers launched to introduce Computer Science and Informatics (CSI) in primary education in Slovenia. The study aims to examine which CSI core concepts teachers most frequently choose to integrate into their lessons when given the freedom to select the topics within the framework, and to explore how students engage with and respond to these activities, as reported in teachers’ reflections. This study is based on reflective feedback from forty-seven teachers from seven primary schools who implemented interdisciplinary lessons that integrate CSI content into existing primary school curricula. Qualitative data from 152 reflections were used to support our research findings. The results show that teachers most frequently introduced the concepts from the content area of algorithms and programming. In contrast, content areas such as computing systems, networks and the internet, data and analysis, and impacts of computing received less attention. Teachers reported that students were motivated and engaged, although some challenges emerged, including difficulties in solving tasks or following instructions. As this pilot study reports on the first year of a two-year initiative, the findings provide preliminary insights into how a structured professional development programme for teachers can support interdisciplinary approaches in CSI education.
Ključne besede: computer science education, computational thinking, STEM, professional development, engagement, motivation, primary schools
Objavljeno v DKUM: 20.10.2025; Ogledov: 0; Prenosov: 4
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Opis: The International Fluid Power Conferences are a two day event, intended for all those professionally-involved with hydraulic or pneumatic power devices and for all those, wishing to be informed about the ‘state of the art’, new findings and innovations within the field of hydraulics and pneumatics. All papers included in the conference program are reviewed and collected in the conference proceedings. The gathering of experts at this conference in Maribor has been a tradition since 1995, and is organised by the Faculty of Mechanical Engineering at the University of Maribor, in Slovenia. Fluid Power conferences are organised every second year and cover those principal technical events within the field of fluid power technologies in Slovenia, and throughout this region of Europe. This year's conference FT2025 is taking place on the 17th and 18th September in Maribor, at Congress centre Habakuk.
Ključne besede: international conference, fluid power, science and profession, inovations, achievements
Objavljeno v DKUM: 16.09.2025; Ogledov: 0; Prenosov: 78
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Opis: The article reevaluates Jerry Fodor’s key argument for the autonomy of the special sciences, which rests on the notion of multiple realization and the claim that special science predicates must be natural kinds. After outlining how Fodor’s view was shaped by the “syntactic” conception of scientific theories, it shows that the recent “semantic” approach in scientific theories challenges the idea that special science kinds must be natural and ontologically committing. On the semantic account, scientific models often invoke idealized or domain-specific predicates that do not have to be natural. We use Fodor’s example – Gresham’s law – to articulate a semantic perspective that preserves the unity of science: higher-level explanations can remain useful, real, and relatively autonomous without irreducible natural kinds. By “sacrificing” natural kinds, we retain the explanatory powers of the special sciences, create a simpler ontological picture of the world, and justify the modus operandi of the sciences, such as cognitive science, where knowledge from the different levels or disciplines that constitute it informs and refines our overall understanding of the world.
Ključne besede: natural kinds, unity of science, special sciences, Fodor
Objavljeno v DKUM: 29.08.2025; Ogledov: 0; Prenosov: 7
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Opis: The research section of the paper explores elementary school students' satisfaction with informatics. This research was carried out using the American Customer Satisfaction Index (ACSI). Four subscales were used: Expectation, Satisfaction, Quality, and Values. The number of Croatian elementary school pupils investigated (from Brod-Posavina County) is 135 (N). Research results show that pupils have high expectations of informatics, including that it will progressively meet their expectations and help them to receive a quality education. It can also be concluded that the problems once faced by students, such as classroom and equipment quality, are becoming much smaller compared to previous years.
Ključne besede: American Customer Satisfaction Index, ACSI, computer science curriculum, ICT, informatics, student satisfaction
Objavljeno v DKUM: 29.07.2025; Ogledov: 0; Prenosov: 6
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