Search for dissertations about: "NATURVETENSKAP"

Showing result 16 - 20 of 25581 swedish dissertations containing the word NATURVETENSKAP.

  2. 16. On Quality in Radiotherapy Treatment Plan Optimisation

    Author : Hunor Benedek; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Pareto optimisation; Pareto fronts; Dose prediction; Machine learning; Deliverable treatment plans; Volumetric modulated arc therapy; IMRT; patient-specific plan quality; plan quality; Multi Criteria Optimisation; Automated Treatment Planning;

    Abstract : Radiotherapy is one of the essential treatments used in the fight against cancer. The goal of radiotherapy is to deliver a high dose of ionising radiation to the tumour volume and at the same time minimise the effect on healthy tissue by reducing the radiation to critical organs. READ MORE

  4. 17. Stewardship in Swedish Baltic small-scale fisheries : A study on the social-ecological dynamics of local resource use

    Author : Emma Björkvik; Wiebren J. Boonstra; Thorsten Blenckner; Jonas Hentati-Sundberg; McCay Bonnie; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; case study research; local ecological knowledge; marine environments; practice; semi-structured interviews; small-scale fisheries social-ecological system; social-ecological traps; structuration theory; traditional ecological knowledge; Sustainability Science; vetenskap om hållbar utveckling;

    Abstract : 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. READ MORE

  5. 18. Assessing Sustainability and Guiding Development towards More Sustainable Products

    Author : Gunilla Clancy; Chalmers tekniska högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; action competence; early-stage product development; team learning; wood-based material; role of designer; semi-structured interview; ecolabels; management systems; participatory action research; sustainability assessment;

    Abstract : 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. READ MORE

  6. 19. Tuned acidity in zeotypes: A descriptor to unravel the direct conversion of methane to methanol

    Author : Simone Creci; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; methanol; MFI; zeolite; methane; catalysis; infrared spectroscopy; zeotype;

    Abstract : 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. READ MORE

  7. 20. Extinctions in Ecological Communities : direct and indirect effects of perturbation on biodiversity

    Author : Alva Curtsdotter; Bo Ebenman; Peter Münger; Elisa Thébault; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : 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. READ MORE