Sökning: "Natural foci"

Visar resultat 1 - 5 av 35 avhandlingar innehållade orden Natural foci.

  1. 1. The Importance of Dosimetry and Radiobiology in Nuclear Medicine : Quantitative methods and modelling

    Författare :Anna Stenvall; Lund Medicinsk strålningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear medicine; radionuclide therapy; radiopharmaceutical therapy; dosimetry; Monte Carlo modelling; radiobiology; ; γH2AX; DOTA-TATE; PET; SPECT;

    Sammanfattning : Nuclear medicine uses radioactive pharmaceuticals for diagnostic or therapeutic purposes. The ionizing radiation emitted from the radiopharmaceutical is partially absorbed within the patient's body and internal dosimetry is the method to estimate the absorbed dose to a tumour or risk organ. LÄS MER

  3. 2. Ticks and Tick-borne Encephalitis Virus : From Nature to Infection

    Författare :Naveed Asghar; Magnus Johansson; Patrik Dinnétz; Travis Taylor; Södertörns högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Co-occurrence; Environmental factors; Flavivirus; Ixodes ricinus; Natural foci; Non-coding region; Poly A tract; Quasispecies; Questing ticks; Scandinavia; Tick-borne encephalitis virus; Vegetation.; Environmental Studies; Miljövetenskapliga studier;

    Sammanfattning : Vector-borne diseases are an increasing global threat to humans due to climate changes, elevating the risk of infections transmitted by mosquitos, ticks, and other arthropod vectors. Ixodes ricinus, a common tick in Europe, transmits dangerous tick-borne pathogens to humans. LÄS MER

  4. 3. The Baltic Sea marine system - human impact and natural variations

    Författare :Erik Gustafsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Baltic Sea; modelling; salinity; oxygen; nutrients; eutrophication; acidification; climate;

    Sammanfattning : The environmental state of the Baltic Sea system is influenced by both natural and anthropogenic factors. Water exchange with the adjacent ocean and within the system depend on large-scale atmospheric circulation and properties of the straits separating the different sub-basins. LÄS MER

  5. 4. Impact of root and mycorrhizal exudation on soil carbon fluxes : influence of elevated CO2 and metals

    Författare :Emma M. Johansson; Patrick van Hees; Bert Allard; Phil Ineson; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; amino acids; 13C; carbon cycle; ectomycorrhiza; elevated CO2; exudation; DOC; LMWOA; metal stress; monosaccharides; oxalate; Pinus sylvestris; saprotrophic fungi; soil respiration; NATURAL SCIENCES; NATURVETENSKAP; Environmental chemistry; Miljökemi; Enviromental Science; Miljövetenskap;

    Sammanfattning : The thesis concerns the behavior of root and ectomycorrhizal (ECM) exudates. In particular, the dynamics of soluble low molecular weight (LMW) organic compounds such as organic acids (LMWOAs), amino acids, monosaccharides, and dissolved organic carbon (DOC) have been studied. LÄS MER

  7. 5. In vivo studies of cell cycle regulating proteins in rats during liver regeneration and during promotion of liver carcinogenesis

    Författare :Lena Ohlson; Inger Porsvh Hällström; Galina Selivanova; Bertha A. Brodin; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell cycle; cancer; HCC; p53; Rb; p107; G1-progression; G1 S transition;

    Sammanfattning : There are more than one hundred different types of cancer in humans. However, the major platform for all types of cancer is automous and uncontrolled cell division and though most types of cancer are possible to treat and cure by surgery, chemical therapy or irradiation, more efficient and less toxic therapies are urgently needed. LÄS MER