Planktic foraminifers, pteropods, and coccolithophores are marine calcifiers, organisms living in the water column and found throughout all oceans, with shells made of calcium carbonate. Because of their shell, they play an important role in the carbon cycle exporting calcium carbonate from the upper ocean to the sea floor when they die and sink. If no dissolution occurs on the water column or within ...

Denne masteroppgaven undersøker hvordan risikoperspektiver som finnes i damsikkerheten, hvordan risikostyring fungerer i damsikkerheten, og hvordan kommunikasjon kan brukes som en prosess for å formidle de ulike risikoperspektivene, og legge til rette for en god risikostyring. Tidligere forskning viser til at store dammer er en sektor som burde utformes av risikostyring, men at det ikke ser ut til ...

For any 4D split-signature conformal structure, there is an induced twistor distribution on the 5D space of all self-dual totally null 2-planes, which is (2, 3, 5) when the conformal structure is not anti-self-dual. Several examples where the twistor distribution achieves maximal symmetry (the split-real form of the exceptional simple Lie algebra of type G₂) were previously known, and ...

Dynamic positron emission tomography (PET) imaging is a valuable tool in medical research and practice. By measuring the distribution of a radioactive tracer within the body over time, dynamic PET imaging allows the visualization of various physiological and biological processes. Furthermore, it allows for quantification of such processes using tracer kinetic modeling. However, kinetic modeling ...

We exploit a natural correspondence between holomorphic (2, 3, 5)-distributions and nondegenerate lines on holomorphic contact manifolds of dimension 5 to present a new perspective in the study of symmetries of (2, 3, 5)-distributions. This leads to a number of new results in this classical subject, including an unexpected relation between the multiply-transitive families of models having 7- and ...

Accelerometers are frequently used to assess physical activity in large epidemiological studies. They can monitor movement patterns and cycles over several days under free-living conditions and are usually either worn on the wrist or the hip. While wrist-worn accelerometers have been frequently used to additionally assess sleep and time in bed behavior, hip-worn accelerometers have been widely ...

Enhanced Antarctic ice sheet mass loss yields ocean surface freshening, cooling and sea ice expansion, which result in changes in the atmospheric conditions. Using the Southern Ocean Freshwater Input from Antarctica (SOFIA) multi-model ensemble, we study the atmospheric response to a 100-year idealized freshwater release of 0.1 Sv. All models simulate a surface-intensified tropospheric cooling and ...

The purpose of this thesis is to investigate if there exist an optimal equilibrium between the climate shell price and reduction of energy consumption. Norconsult produced in 2019 SIMIEN energy simulation reports in connection with the renovation of Nordseter school. The school was built in 1968 and there is no documentation from this period. Therefore, we had to make assumptions in connection ...

Increased basal melting of the Petermann Ice Shelf is typically attributed to rising ocean temperatures. While subglacial discharge is known to intensify basal melt, the underlying mechanisms and their evolution in a warming climate remain unresolved. Using a 3-D numerical regional ice shelf–ocean model centered on the Petermann Fjord, we identify a regime shift in heat flux efficiency within the ...

In this paper we propose a new approach for increasing physical activity (PA) in individuals with intellectual disabilities (IDs), using augmented reality exergames to increase adherence and motivation. The game encourages PA by showing virtual elements through a mobile phone camera. The elements only appeared if the player moved in the real world. The game was specifically designed for people with ...