Search for dissertations about: "alpha spectrometry"

Showing result 1 - 5 of 47 swedish dissertations containing the words alpha spectrometry.

  2. 1. On Weapons Plutonium in the Arctic Environment (Thule, Greenland)

    Author : Mats Eriksson; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Nuclear physics; Kärnfysik; Nuclear medicine; radiobiology; Nukleärmedicin; radiobiologi; Nuclear engineering and technology; Kärnteknik; realtime digital image systems; SEM; ICP-MS; alpha spectrometry; gamma spectrometry; heterogeneous activity concentration; hot particle; separation technique; isotopic ratio; inventory; source term; fallout; americium; uranium; plutonium; radionuclide; Bylot Sound; Greenland; Thule; environmental radioactivity; nuclear accident;

    Abstract : This thesis concerns a nuclear accident that occurred in the Thule (Pituffik) area, NW Greenland in 1968, called the Thule accident. Results are based on different analytical techniques, i.e. gamma spectrometry, alpha spectrometry, ICP-MS, SEM with EDX and different sediment models, i. READ MORE

  4. 2. Advanced computations and mass-spectrometric techniques to unravel the dynamics and interactions of proteins

    Author : Joana Costeira-Paulo; Erik Marklund; Lars Konermann; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; molecular dynamics; mass spectrometry; dihydroorotate dehydrogenase; alpha-synuclein; protein structure; ion mobility; electrospray ionisation; collision cross section; lipids; gas-phase hydrogen deuterium exchange; collision induced unfolding; Biokemi; Biochemistry;

    Abstract : Proteins are an important class of biomolecules, involved in the metabolism, regulation, structure and transport in cells. Unfortunately, many diseases are caused by protein dysfunction. When proteins perform their normal function, they may interact with each other or change their conformation. READ MORE

  5. 3. Mechanisms of HAMLET-induced cancer cell death

    Author : Sonja Aits; immunologi och glykobiologi - MIG Avdelningen för mikrobiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; alpha-actinin; prohibitin; alpha-lactalbumin; HAMLET; cancer; cell death; autophagy; focal adhesions; c-Myc; hexokinase; glycolysis;

    Abstract : HAMLET, a complex of α-lactalbumin and oleic acid, preferentially kills cancer cells and is also effective in vivo. HAMLET causes apoptosis but cells die even if this pathway is inhibited. Thus, the role of autophagy, an alternative cell death pathway, was examined. READ MORE

  6. 4. Homogeneous radiolysis studies using 238Pu

    Author : Lovisa Bauhn; Chalmers tekniska högskola; []
    Keywords : gas mass spectrometry; alpha-radiolysis; plutonium oxidation;

    Abstract : Used nuclear fuel contains radiotoxic elements with lifetimes in the range of 100 000 years. Although possibilities for recycling of the fuel exist, a final storage for the ultimate high-level waste will be necessary. READ MORE

  7. 5. ALPHA-LINOLENIC ACID Postprandial Lipid Metabolism and Enzymatic Interesterification of Triacylgylcerols

    Author : Julia Svensson; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alpha-linolenic acid; triacylglycerol; postprandial lipemia; Lipozyme TL IM; interesterification;

    Abstract : An important indicator of the metabolic capacity of humans is the ability to regulate plasma triacylglycerol levels and to clear triacylglycerol-rich lipoproteins (TRLs) from the circulation after a meal. This is crucial since most of the day is spent in the postprandial state. READ MORE