Gas hydrates store a large amount of methane (>500 Gt of Carbon) in continental margins and permafrost environments. Some of these deposits occur in climate sensitive areas, such as Arctic and permafrost settings. Gas hydrates occur extensively in the Vestnesa Ridge, a contourite drift deposit on the western Svalbard margin. The eastern segment of the Vestnesa Ridge is characterized by the presence ...

Deinococcus radiodurans is a gram-positive bacterium with a pink-orange colour first isolated in canned meat. The bacteria is remarkable amongst all species studied to date by its unusual ability to repair hundreds of radiation induced DNA double strand breaks where normal species can only repair a dozen. Our studies of the DNA polymerase III β-subunit (β-clamp) and Exonuclease III from D. radiodurans ...

The velocity scaling of blobs, subject to dissipation by either electric currents to the sheaths, or dynamical friction, is studied by numerical simulations where the blob amplitude relative to the background plasma is a free parameter. When subject to dissipation by sheath currents, the radial velocity of a blob depends on the square of its cross field size l, vrad ∼ √l for small l. For large l, ...

This thesis focuses on how disturbances in the geomagnetic field, offshore northern Norway, may affect the accuracy of magnetic directional wellbore surveying. The topics discussed are, however, applicable to the entire northern auroral zone. Suggestions on how to manage the effect of increased geomagnetic activity on magnetic directional wellbore survey operations in and near the auroral zone are ...

<p>The electric power system infrastructure is essential for modern economies and societies, as it provides the electricity needed to power homes, businesses, and industries. It is of critical importance that the operation of the electric power system is optimized to serve the electricity demand reliably and sustainably. Advances in machine learning and optimization have enabled the potential to ...

This thesis developed the EOS formulations of solving nonlinear transient scatterings, both for 1D case and 3D Maxwell's equations. This method can be accurately and stably implemented using one particular choice of numerical scheme for the inside of the objects and for the required integral representations of the boundary values. For a stable numerical solution, the time step needs to be confined ...

<p>The marine pathogen <i>Aliivibrio salmonicida</i> is the causative agent of cold-water vibriosis, affecting mainly farmed salmonid fish when water temperatures are below 10°C. Even though cold-water vibriosis is no longer threatening Norwegian aquaculture, the reemergence of the disease is still a possibility. Therefore, it is crucial to gain knowledge and understanding of the pathogenicity ...

Paradoxically, the technological revolution that has created a vast health problem due to a drastic change in lifestyle also holds great potential for individuals to take better care of their own health. The first consequence is not addressed in this dissertation, but the second represents the focus of the work presented, namely utilizing ICT to support self-management of individual health challenges. ...

Wireless communication infrastructure in hospitals represents a core for information sharing between health care workers. Medical staff’s work situation is highly mobile, and important information is constantly shared between co-workers to provide high quality services to the patients. To be able to communicate at any place and at any time during shifts, physicians carry mobile communication devices, ...