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Sökning: WFRF:(Svensson Olof) > (1990-1994)

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  • Salvigsen, Otto, et al. (författare)
  • Glacial history and shoreline displacement on Erdmannflya and Bohemanflya, Spitsbergen, Svalbard
  • 1990
  • Ingår i: Polar Research. - 0800-0395. ; 8:2, s. 261-273
  • Tidskriftsartikel (refereegranskat)abstract
    • Traces of former glaciation were studied on Erdmannflya and Bohemanflya. Both peninsulas were probably completely covered by glaciers during the Late Weichselian and the final deglaciation took place around 10,000 C-14 years BP. Esmarkbreen readvanced shortly after 9,500 BP, probably a local and shortlasting event. Raised beaches occur to about 60 m above sea level, and date back to about 10,000 BP. Initial land emergence was rapid, about 3m/100 years. It seems to have been followed by a marine transgression between 8,500 and 7,500 BP, which resulted in a large and distinct beach bridge and marine abrasion cliffs about 10-12 m above present sea level. Mytilus edulis lived in the area between at least 9,000 and 5,000 BP. Five thousand years ago relative sea level probably stood 3-4 m higher than today. Relative sea level has remained close to present during the last centuries. Different positions of glacier fronts in this century have also been mapped.
  • Svensson, G, et al. (författare)
  • Quantitative measurements of collateral arterial blood flow in nonarterialized rat liver grafts.
  • 1994
  • Ingår i: Transplant international : official journal of the European Society for Organ Transplantation. - 0934-0874. ; 7:2, s. 136-9
  • Tidskriftsartikel (refereegranskat)abstract
    • The early development of arterial blood flow in the grafted liver after orthotopic liver transplantation in the rat without reconstruction of the hepatic artery was studied. Arterial liver blood flow was measured on day 21 after transplantation with NEN-TRAC microspheres (size 15.5 +/- 0.1 microns) and labelled with 103Ru. The arterial liver blood flow in the grafted liver was 0.778 +/- 0.247 ml/min per gram for transplanted rats after 21 days. One day after transplantation, the blood flow was only 0.006 +/- 0.002 ml/min per gram. The results of this study demonstrate that there was no arterial blood flow on day 1 after transplantation, as expected, but that there was a high arterial blood flow in the transplanted liver by day 21. This was also supported by the angiographic findings. The early development of arterial blood flow via collaterals may account for the excellent results that we and others have attained in orthotopic liver transplantation without rearterialization in the rat.
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