Search for dissertations about: "Maria Hellman"

Found 5 swedish dissertations containing the words Maria Hellman.

  2. 1. Microbial communities and nitrogen cycling functions in barrier systems for treatment of nitrogen polluted water

    Author : Maria Hellman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Water is an increasingly threatened resource. Anthropogenic input of nitrogen (N) to surface waters causes eutrophication, and N in the groundwater can be a threat to human health, hence management measures are needed. READ MORE

  4. 2. Microbial nitrate removal from mining waters

    Author : Maria Hellman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Mining activities cause high levels of nitrogen in the process water. The nitrogen originates from the blasting procedure, where undetonated explosives in the form of ammonium nitrate dissolve in the water. Part of the water is discharged to receiving water bodies where it may cause environmental problems. READ MORE

  5. 3. Televisual Representations of France and the UK under Globalization

    Author : Maria Hellman; Jan Hallenberg; Alexa Robertson; Johan Ericsson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; globalization; television; collective identity; the BBC; the TF1; news media culture; Political science; Statsvetenskap;

    Abstract : The aim of this thesis is to examine how France and the UK are represented in the television news texts at two different periods in time in order to explore whether and how these representations have changed as globalization has progressed. The thesis contributes to the study of collective identities, political cultures and comparative methods of mass communication. READ MORE

  6. 4. Chemically Induced DNA Damage in Extended-term Cultures of Human Lymphocytes

    Author : Maria Andersson; Björn Hellman; Leif Busk; Uppsala universitet; []
    Keywords : Toxicology; Comet assay; DNA-damaging agents; DNA repair; Extended-term Cultures of Human Lymphocytes; Genotoxicity; Induced DNA damage; In vitro; Mouse Lymphoma Cells; Primary Cell Cultures; Reactive Oxygen Species; Toxikologi;

    Abstract : Generation of DNA damage is regarded to be an important initial event in the development cancer. Consequently, a battery of tests have been developed to detect different types of genotoxic effects in order to be able to predict the potential genotoxicity and mutagenicity of chemicals, including both pharmaceutical drugs and various types of environmental and occupational agents, as well as dietary factors. READ MORE

  7. 5. Calcium Homeostasis in Patients with Graves' Disease

    Author : Maria Annerbo; Per Hellman; Peter Stålberg; Peyman Björklund; Filipsson Nyström Helena; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Graves Disease; Calcium homeostasis; Total thyroidectomy; Bone metabolism; Calcium sensing receptor; Surgery; Kirurgi;

    Abstract : Patients with Graves´ Disease (GD) have a higher risk of developing more severe and prolonged hypocalcaemia after total thyroidectomy (TT) than patients who undergo surgery for benign atoxic goitre. Since TT is the most effective treatment for GD, it is crucial to identify mechanisms for postoperative hypocalcaemia. READ MORE