Search for dissertations about: "isotope labelling"

Showing result 1 - 5 of 9 swedish dissertations containing the words isotope labelling.

  1. 1. Structure and Dynamics of the Hepatitis B Virus Encapsidation Signal Revealed by NMR Spectroscopy

    University dissertation from Umeå : Medicinsk biokemi och biofysik

    Author : Sara Flodell; Umeå universitet.; [2004]
    Keywords : HBV; RNA; isotope labelling; NMR; structure determination; medicinsk biokemi; Medical Biochemistry;

    Abstract : This thesis describes the study of the three-dimensional structure and dynamics of the hepatitis B virus (HBV) encapsidation signal, epsilon, by means of nuclear magnetic resonance (NMR) and mutational data. HBV replicates by reverse transcription of an RNA pregenome into the viral DNA genome, which becomes enclosed in viral particles (encapsidation). READ MORE

  2. 2. Monitoring primary carbon metabolism in plants using heavy isotope labelling and mass spectrometry

    University dissertation from Umeå : Medicinsk biokemi och biofysik

    Author : Pernilla Linden; Sveriges lantbruksuniversitet.; [2015]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : This thesis covers the possibilities and limitations of studying primary metabolism in intact plants, with special focus on heavy isotope labelling and mass spectrometry methodology. In paper I, a series of Arabidopsis thaliana mutants lacking one or both genes of mitochondrial malate dehydrogenase (mMDH characterised) were characterised. READ MORE

  3. 3. Liquid Chromatography – Mass Spectrometry Analysis of Short-lived Tracers in Biological Matrices Exploration of Radiotracer Chemistry as an Analytical Tool

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Martin Lavén; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; liquid chromatography - mass spectrometry; radiotracer chemistry; positron emission tomography; biological samples; radionuclide imaging; Analytisk kemi; NATURAL SCIENCES Chemistry Analytical chemistry; NATURVETENSKAP Kemi Analytisk kemi;

    Abstract : Liquid chromatography – mass spectrometry (LC-MS) methods were developed for the analysis of positron emission tomography (PET) radiotracers in biological matrices. Additionally, radiotracer chemistry was explored as an analytical tool for supporting LC-MS method development and imaging molecular interactions in miniaturised chemical analysis systems. READ MORE

  4. 4. Improvement of the AMS-technique and applications to 3H and 59Ni Measurements

    University dissertation from Department of Physics, Lund University

    Author : Madis Kiisk; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; accelerator mass spectrometry AMS ; development of AMS technique; 59Ni; tritium; Kärnfysik; Nuclear physics; Fysicumarkivet A:2003:Kiisk;

    Abstract : Popular Abstract in Swedish Utveckling av AMS-tekniken och tillämpningar på 3H och 59Ni mätningar Traditionellt mäter man radioaktivitet genom att registrera den utsända strålningen från sönderfallande kärnor. Denna sönderfallsmätning fungerar oftast bra så länge halveringstiden (den tid det tar för hälften av kärnorna att sönderfalla) är kort nog samt då man har tillräckligt mycket material. READ MORE

  5. 5. The role of biological processes in base cation supply in boreal forest podzols

    University dissertation from Department of Physics, Lund University

    Author : Zaenab Al-Azzawi; Sveriges lantbruksuniversitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis describes experiments designed to improve understanding of biological processes contributing to supply of base cations and other nutrients in boreal forest podzols. We used microcosms containing tree seedlings growing in natural substrates, a combination of direct measurements, modelling, stable Mg isotope analysis, and 13CO2 pulse-labelling. READ MORE