Trine Abraham Callesen

Learn More
The current understanding of Arctic ecosystems is deeply rooted in the classical view of a bottom-up controlled system with strong physical forcing and seasonality in primary-production regimes. Consequently, the Arctic polar night is commonly disregarded as a time of year when biological activities are reduced to a minimum due to a reduced food supply.(More)
The polar night in the Arctic is characterized by up to six months of darkness, low temperatures and limited food availability. Biological data on species composition and abundance during this period are scarce due to the logistical challenges posed when sampling these regions. Here, we characterize the plankton community composition during the polar night(More)
Twenty-seven experimental and clinical studies on hemodynamic changes during thoracic epidural analgesia (TEA) are reviewed. It is concluded, that TEA exerts negative chronotropic, inotropic, dromotropic and bathmotropic effects on the heart. The systemic vascular resistance as well as cardiac output are diminished, and a substantial reduction in the(More)
  • 1