Search for dissertations about: "halogen"

Showing result 21 - 25 of 58 swedish dissertations containing the word halogen.

  2. 21. Decadal analysis of stratospheric ozone depletion using data assimilation and Odin/SMR measurements

    Author : Kazutoshi Sagi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ozone loss; remote sensing; stratosphere; limb sounding; data assimilation;

    Abstract : Serious ozone depletion has been measured every Antarctic spring since the early 80’s. This ozone depletion is considered to be a result of photo-chemical reactions and catalytic cycles resulting from anthropogenic halogen containing gases. facilitated by the formation of Polar Stratospheric Clouds (PSCs). READ MORE

  4. 22. Analysis of stratospheric ozone depletion in the Arctic using a data assimilation technique

    Author : Kazutoshi Sagi; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; data assimilation; ozone loss; limb sounding; remote sensing; stratosphere;

    Abstract : Serious ozone depletion has been measured every Antarctic spring since the early 80’s. This ozone depletion is considered to be a result of photo chemical reactions and cat- alytic cycles resulting from anthropogenic halogen containing gases. READ MORE

  5. 23. Development of New Efficient Iridium-Catalyzed Methods for the Construction of Carbon-Heteroatom Bonds

    Author : Elis Erbing; Belén Martín-Matute; Keary Engle; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iridium Catalysis; Method development; Halogenation; Isomerization; C-H Activation; organisk kemi; Organic Chemistry;

    Abstract : Today’s society has a large demand for biologically active chemicals that can be used for example as pharmaceuticals and in the agriculture. These are normally constructed by assembling together several smaller chemical molecules. READ MORE

  6. 24. Indirect Radiohalogenation of Targeting Proteins : Labelling Chemistry and Biological Characterisation

    Author : Anna Orlova; Hans Lundqvist; Jörgen Carlsson; Lars Gedda; Jacek Capala; D.Scott Wilbur; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; radiohalogenation; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi; Biomedical Radiation Science; biomedicinsk strålningsvetenskap;

    Abstract : In about half of all newly diagnosed cancer cases, conventional treatment is not adequately curative, mainly due to the failure of conventional techniques to find and kill residual cells and metastases, which might consist of only a few malignant cells, without causing unacceptable complications to healthy tissue. To solve the problem a more selective delivery of cytotoxic substances to tumour cells is needed. READ MORE

  7. 25. Synthesis of 18F- and 76Br-labelled oligonucleotide and nucleoside derivatives

    Author : Elisabeth Hedberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

    Abstract : With the aim of developing synthetic routes to oligodeoxynucleotides and analogues labelled with the positron-emitting radionuclides 18F and 76Br (half-lives 1.8 and 16. READ MORE