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Area rearrangement operator in discrete and continuous calculus
(Master thesis, 2024-06-03)By interpreting sums as area we construct the area rearrangement operator which looks like Φ = −x d/dx in the continuous case and φ = −x∆ in the discrete case. We explore the properties of these operators, among them how ... -
Arithmetization-oriented APN permutations
(Journal article; Peer reviewed, 2024)Recently, many cryptographic primitives such as homomorphic encryption (HE), multi-party computation (MPC) and zero-knowledge (ZK) protocols have been proposed in the literature which operate on the prime field \({\mathbb ... -
The aromatic bicomplex for the description of divergence-free aromatic forms and volume-preserving integrators
(Journal article; Peer reviewed, 2023)Aromatic B-series were introduced as an extension of standard Butcher-series for the study of volume-preserving integrators. It was proven with their help that the only volume-preserving B-series method is the exact flow ... -
Aromatic plants in nests of blue tits (Cyanistes caeruleus)
(Master thesis, 2024-11-20)Blue tits (Cyanistes caeruleus) build their nests out of moss and line them with insulating materials such as feathers, fur, and hair. In the southern areas of the species distribution range, blue tits often add aromatic ... -
Arrangement Problems Parameterized by Neighbourhood Diversity
(Master thesis, 2018-12-19)We show that the arrangement problems BANDWIDTH, DISTORTION and IMBALANCE is FPT when parameterized by neighbourhood diversity, and establish some structural results for CUTWIDTH parameterized by neighbourhood diversity. -
Arsenic speciation and arsenic feed-to-fish transfer in Atlantic salmon fed marine low trophic feeds based blue mussel and kelp
(Journal article; Peer reviewed, 2023)Background: Aquaculture aims to reduce the environmental and climate footprints of feed production. Consequently, low trophic marine (LTM) resources such as blue mussels and kelp are potential candidates to be used as ... -
Arsenic speciation in animal feed and feed ingredients by ICP-MS and HPLC-ICP-MS methods
(Master thesis, 2023-09-30) -
Artificial gas supersaturated water from small hydropower plants: methods to detect air entrainment at intakes
(Master thesis, 2022-06-01)Hydropower plants with submerged intake and Francis turbine can release artificial Total Dissolved Gas (TDG) supersaturated water from the plants outlet, if air is drawn into the pressure pipe at intake and dissolved in ... -
Artssuksesjon av planteplankton i Raunefjorden våren 2010. Reguleringsmekanismer og elementsammensetning ved røntgenfluorescens
(Master thesis, 2011-10-03)Denne studien av artssuksesjon og reguleringsmekanismer er satt sammen av to deler. Den ene delen består av et tokt til Svinøysnittet, mens den andre er en serie av prøvetakinger og målinger i Raunefjorden i Hordaland. ... -
Ascaridoid nematodes in mesopelagic fish (Cape Verde - Bay of Biscay areas): ecological and food safety perspectives
(Master thesis, 2021-04-05)The total amount of mesopelagic fish biomass is estimated to be between 1 and 20 billion tons globally. However, there is currently no industrial fishery for them. As the sustainability of harvesting pelagic fishes and the ... -
Ash dieback: A single-species catastrophe or a cascade of ecological effects in the ground flora?
(Journal article; Peer reviewed, 2024)Climate change and human activities have accelerated the spread of non-native species, including forest pests and pathogens, significantly contributing to global biodiversity loss. Pathogens pose a significant threat to ... -
The ASIM mission on the international space station
(Peer reviewed; Journal article, 2019-03-12)The Atmosphere-Space Interactions Monitor (ASIM) is an instrument suite on the International Space Station (ISS) for measurements of lightning, Transient Luminous Events (TLEs) and Terrestrial Gamma-ray Flashes (TGFs). ... -
Aspects of Electron Dynamics in Atoms Exposed to Single Cycle Electromagnetic Pulses
(Doctoral thesis, 2018-06-29)This thesis covers the topic in atomic physics: Interaction of a strong external field with Rydberg hydrogen atom. In three scientific publications, we have targeted physical processes such as the field ionization in the ... -
Aspects of in situ angular scattering measurements in contrasting waters
(Doctoral thesis, 2022-01-28)Rapid changes are observed in oceanic and coastal environments around the world due to global temperatures increases, ocean acidification and changing weather patterns - anthropogenic climate change. These changes have ... -
Aspects on interactions between mid- to high latitude atmospheric circulation and some surface processes
(Doctoral thesis, 2006-06-08)The Arctic is a hot topic in Climate Research. A large number of signs of a warming Arctic Climate have been identified the latest years. This is of major concern in light of the increasing atmospheric content of greenhouse ... -
Assessing acidity impacts in Nordic lakes and streams: Development of a macroinvertebrate-based multimetric index to quantify degradation and recovery
(Journal article; Peer reviewed, 2023)1) Emissions of acidifying compounds have decreased over several decades, nevertheless acidification impacts on aquatic ecosystems remains as a regionally important environmental driver resulting in biodiversity loss and ... -
Assessing amino acid solubility of black soldier fly larvae meal in Atlantic salmon (Salmo salar) in vivo and in vitro
(Journal article; Peer reviewed, 2022)In vitro and in vivo methods were used to evaluate amino acids solubility of black soldier fly (BSF) larvae meal and two experimental diets (reference and test diets) for Atlantic salmon. The current study used in vitro ... -
Assessing and comparing climatic control on distribution and reproduction of alpine and lowland species in the subalpine habitat of western Norway.
(Doctoral thesis, 2012-02-06)Aims and background: Species range shift is among the most well-documented responses to climate change. As a result, a growing number of studies model species climatic niches to predict how species ranges may displace in ... -
Assessing and Mitigating Risks in Computer Systems
(Doctoral thesis, 2008-09-26)When it comes to non-trivial networked computer systems, bulletproof security is very hard to achieve. Over a system's lifetime new security risks are likely to emerge from e.g. newly discovered classes of vulnerabilities ...