Search for dissertations about: "Natural experiment"

Showing result 1 - 5 of 1464 swedish dissertations containing the words Natural experiment.

  2. 1. The measurement of chemical persistence in the field by benchmarking : Theory and Experiment

    Author : Hongyan Zou; Michael McLachlan; Keri Hornbuckle; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; chemical benchmarking; persistence; half-lives; modeling; threshold benchmarking; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Persistence is one of the core criteria in chemical exposure and hazard assessment. It is often defined as the half-life for the removal of a chemical from a specified environment by transformation. Chemicals with long transformation half-lives may pose high risks for wildlife or humans and be subject to long-range transport to remote areas. READ MORE

  4. 2. Branching ratios in dissociative recombination of polyatomic ions at CRYRING : experiment, theory and applications

    Author : Alik M. Derkatch; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Quantum entanglement : theory and an experiment

    Author : Hoshang Heydari; Gunnar Björk; Marek Zukowski; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; quantum entanglement; Fysik; Physics; Fysik;

    Abstract : .... READ MORE

  6. 4. Search for Weakly Produced Supersymmetric Particles in the ATLAS Experiment

    Author : Maja Tylmad; Christophe Clément; Barbro Åsman; Patrice Verdier; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ATLAS; ATLAS experiment; supersymmetry; chargino; neutralino; physics analysis; LHC; Large Hadron Collider; fysik; Physics;

    Abstract : The Large Hadron Collider located at CERN is currently the most powerful particle accelerator and ATLAS is an experiment designed to exploit the high energy proton-proton collisions provided by the LHC. It opens a unique window to search for new physics at very high energy, such as supersymmetry, a postulated symmetry between fermions and bosons. READ MORE

  7. 5. Conservation of semi-natural grasslands : Effects of different management methods on biodiversity

    Author : Malin Tälle; Lars Westerberg; Per Milberg; Uno Wennergren; Hans Henrik Bruun; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Species-rich semi-natural grassland are valuable habitats in the agricultural landscape as they may contain a high diversity of both plant and animal species, as well as provide essential ecosystem services like pollination. To keep these habitats open and to maintain the biodiversity in them, management like grazing or mowing is necessary. READ MORE