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Visar resultat 1 - 5 av 26498 avhandlingar som matchar ovanstående sökkriterier.

1. 1. En problematisering av ungdomars intresse för naturvetenskap och teknik i skola och samhälle : Innehåll, medierna och utbildningens funktion

   Författare :Anders Jidesjö; Helge Strömdahl; Jari Lavonen; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Science and technology are important parts of culture. Thus today there is a need for a science education which promotes ‘science for all’ and ‘scientific literacy’ in order to prepare students for citizenship. Earlier studies indicate that many students find it hard to learn science and technology in school. LÄS MER

3. 2. Tissue tropism and oncolytic potential of enteroviruses

   Författare :Stina Israelsson; Michael Lindberg; Kjell Edman; Peter Gierow; Einar Everitt; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; picornavirus; enterovirus; echovirus; receptor; tropism; viral oncolysis; quantification; receptor interactions; colon cancer; Biomedical Sciences; Biomedicinsk vetenskap;

   Sammanfattning : .... LÄS MER

4. 3. Barns teckningar som utgångspunkt i det naturvetenskapliga samtalet

   Författare :Johanna Andersson; Lena Tibell; Jesper Haglund; Christina Ottander; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; children; drawings; conceptions; heat; mixning; human body; living min-living; barn; teckningar; föreställningar; värme; blandning; människokroppen; levande inte levande;

   Sammanfattning : Barns föreställningar utgör en viktig del i deras begreppsbildning inom naturvetenskap vilket betonas inom konstruktivismen. I denna avhandling utgör en socialkonstruktivistisk syn på lärande det teoretiska ramverket. LÄS MER

5. 4. Optimal strategies and information in foraging theory

   Författare :Emma Sernland; Högskolan i Skövde; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bayesian foraging; information use; public information; prior information; negative binomial distribution; group foraging; decision-making; information updating; leaving strategy; Ecology; Ekologi; NATURAL SCIENCES; NATURVETENSKAP; Other biology; Övrig biologi; Naturvetenskap; Natural sciences; information use; Bayesian foraging; public information; prior information; negative binomial distribution; group foraging; decision-making; information updating; leaving strategy; Ecology; Ekologi;

   Sammanfattning : In this thesis, I present both theoretical and empirical work where we have studied how humans and animals use information in situations where they need to continually update their information on the density of a resource. We have found that the amount of information, and the way the information is presented, are important factors for how well decisions are adapted to current circumstances. LÄS MER

7. 5. Assessing Mineral Resource Scarcity in a Circular Economy Context

   Författare :Hampus André; Chalmers tekniska högskola; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; resource-efficiency; area of protection - natural resources; electric and electronic equipment; supply risk; scarce metals; criticality assessment; material flow analysis; life cycle assessment; circular economy; complex products;

   Sammanfattning : Due to humanity’s dependence on metal resources there are growing concerns regarding impacts related to their potential scarcity, both for current and future generations. The vision of a more circular economy suggests that extending the functional use of metals through measures aiming for resource-efficiency (RE) such as increasing technical lifetime, repairing and recycling could reduce mineral resource scarcity. LÄS MER