Sökning: "Radiation Effects"

Visar resultat 41 - 45 av 584 avhandlingar innehållade orden Radiation Effects.

  1. 41. Mechanism behind the development of radiation-induced cardiovascular effects

    Författare :Venkata Ramesh Yentrapalli; Siamak Haghdoost; Andrzej Wojcik; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molekylärgenetik; Molecular Genetics;

    Sammanfattning : Epidemiological studies on acutely and chronically exposed individuals indicate that ionising radiation could be a risk factor for cardiovascular diseases. Experimental data regarding radiation-induced cardiovascular late effects are limited and biological mechanisms behind these late effects are still unclear. LÄS MER

  3. 42. Simulation and analysis of radiation from runaway electrons

    Författare :Mathias Hoppe; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; tokamak; runaway electrons; synthetic diagnostics; fusion; synchrotron radiation; plasma physics; bremsstrahlung;

    Sammanfattning : Electron runaway constitutes one of the primary threats to future tokamak fusion reactors such as ITER. Successful prevention and mitigation of runaways relies on the development of theoretical models which accurately describe the dynamics of runaway electrons, and these models must in turn be validated in experiments. LÄS MER

  4. 43. Optimizing postoperative radiation therapy in prostate cancer: focus on side-effects, practical implementation and dose distribution

    Författare :Karin Braide; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prostatacancer; Postoperativ strålbehandling; Side-effects;

    Sammanfattning : Optimizing postoperative radiotherapy in prostate cancer: focus on side effects, practical implementation and dose distribution Karin Braide, MD Department of Urology, Institute of Clincal Sciences Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden ABSTRACT We analyzed side-effects, pre-treatment bladder preparations and dose distribution to the rectum in four different cohorts of patients, treated with postoperative radiotherapy (PRT) in prostate cancer. Side-effects according to a self-reporting survey revealed rectal bleeding as a main result in a follow up time of 6. LÄS MER

  5. 44. Effects of enhanced ultraviolet-B radiation on subarctic ecosystems

    Författare :Carola Gehrke; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pigmentation; photosynthesis; dark respiration; shoot morphology; shoot growth; phanerogams ; species composition cryptogams; productivity; decomposition; dwarf shrubs; bryophytes; peatland ecosystem; heath ecosystem; UV-B; ozone depletion; Plant ecology; Växtekologi;

    Sammanfattning : Biologically harmful ultraviolet-B radiation (UV-B, 280-320 nm) is increasing at the Earth´s surface owing to stratospheric ozone depletion. This is of global concern due to potential impacts of enhanced UV-B radiation on the biosphere. LÄS MER

  7. 45. Thermoelectric- and hot-electron effects in graphene devices

    Författare :Grigory Skoblin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Parylene; bolometer; CVD; encapsulation; graphene; thermoelectric effects;

    Sammanfattning : A technology of encapsulation of graphene in Parylene was introducedas an alternative to encapsulating graphene in hBN. Edge contacts to theencapsulated graphene in this case showed resistivity down to 14 Ohm um,which is the lowest reported value so far. LÄS MER