Sökning: "Naturvetenskap"
Visar resultat 21 - 25 av 26509 avhandlingar innehållade ordet Naturvetenskap.
21. Stewardship in Swedish Baltic small-scale fisheries : A study on the social-ecological dynamics of local resource use
Sammanfattning : Sustainability scholars frequently advocate for stewardship as a strategy to foster sustainable development. Stewardship broadly refers to the wise and responsible use of nature, and is considered necessary to ensure the long-term wellbeing of humans and that of life in general. LÄS MER
22. Lärares formande av en yrkesidentitet relaterad till hållbar utveckling
Sammanfattning : Swedish schools are required to educate for sustainable development (ESD). The challenges for the teachers are demanding as the content is controversial and complex. This study focuses on exploring the different ways teachers and student teachers reflect upon their approach to ESD. LÄS MER
23. Assessing Sustainability and Guiding Development towards More Sustainable Products
Sammanfattning : Companies need to develop more sustainable products that fit into future more sustainable markets. For this reason, the integration of sustainability considerations is needed in the early stages of product development, where a major part of the sustainability performance of a final product is determined. LÄS MER
24. Tuned acidity in zeotypes: A descriptor to unravel the direct conversion of methane to methanol
Sammanfattning : The catalyst's acidity is crucial in countless chemical reactions, and thus to tune this parameter means to take the lead on the desired catalytic reaction. Therefore, it is not surprising that zeolites have been used since decades as catalysts for their outstanding properties of solid acids. LÄS MER
25. Extinctions in Ecological Communities : direct and indirect effects of perturbation on biodiversity
Sammanfattning : In the dawning of what may become Earth’s 6th mass extinction the topic of this thesis, understanding extinction processes and what determines the magnitude of species loss, has become only too relevant. The number of known extinctions (~850) during the last centuries translates to extinction rates elevated above the background rate, matching those of previous mass extinction events. LÄS MER