English
norskFakultet for biovitenskap, fiskeri og økonomi: Recent submissions
Now showing items 921-940 of 5699
-
Can machine learning beat the Norwegian stock market?
(Master thesis; Mastergradsoppgave, 2023-05-31)Multiple studies on the performance of machine-learning stock portfolios have shown the efficacy of machine-learning portfolios on large stock exchanges, especially the American- and Chinese market. Fewer studies have been conducted on smaller cap markets, which consists of smaller, less-liquid investment options. The purpose of this thesis is therefore to explore the possibilities to beat the ... -
Taksonomiens betydning for nordnorsk næringsliv - en revolusjon eller evolusjon?
(Master thesis; Mastergradsoppgave, 2023-05-31)For å finansiere overgangen til klimanøytralitet innen 2050, har EU utarbeidet en handlingsplan for bærekraftig finans. Tiltakene i handlingsplanen skal bidra til å styre kapital mot bærekraftige aktiviteter, øke transparens i finansmarkedene og redusere risikoen for grønnvasking. Det mest sentrale virkemidlet for å oppnå dette er opprettelsen av taksonomien for bærekraftige økonomiske aktiviteter. ... -
Næringsklynger i nord - hvilke barn leker best, og hvem vinner mest?
(Master thesis; Mastergradsoppgave, 2023-05-31)I senere år har dannelsen av formaliserte næringsklynger økt i omfang, blant annet for å fremme innovasjon og bidra til en bærekraftig økonomi for Norge etter oljen. Denne mastergradsavhandlingen har som formål å undersøke hvordan strukturelle forhold i næringsklynger påvirker samarbeidet mellom medlemsbedriftene, samt hvilke effekter medlemmene opplever som følge av klyngemedlemskapet. Oppgaven ... -
In search of Safe Havens for US and Scandinavian stock indices.
(Master thesis; Mastergradsoppgave, 2023-05-24)Using correlation and rolling correlation, we determine that Gold, Bitcoin, Silver, Brent crude oil, Gas, and Corn fail as Safe haven assets for the US, Norwegian, Danish, and Swedish stock markets during the Covid-19 pandemic and the Russia-Ukraine crisis. Instead, these assets act as weak/strong diversifiers for selective indices during the sample period 2014-2023. In the long-term perspective ... -
What do the Great Barrier Reef management and Norwegian spatial fisheries management have in common?
(Conference object; Konferansebidrag, 2018)What do the Great Barrier Reef management and Norwegian spatial fisheries management have in common? The presentation addresses the importance of governmentality (Foucault 1978), understood as the art of governing for successful marine governance (MG). Management of the Great Barrier Reef and the Norwegian spatial management of fisheries are used as examples of systems that depends on and foster ... -
LC-MS based dereplication and isolation of compound from Arctic marine bryozoan Dendrobeania murrayana
(Conference object; Konferansebidrag, 2018)The new guanidine based alkaloid Dendrobeaniamine A was isolated from the organic crude extract of the Arctic marine bryozoan <i>Dendrobeania murrayana</i>. The structure was determined by interpretation of data from 1D and 2D NMR spectroscopic methods and mass spectrometry (HR-MS) analysis. Dendrobeaniamine A did not show any biological activities in the applied bioassays. Further bioactivity ... -
First analysis of an Arctic sea ice meiofauna food web based on abundance, biomass and stable isotope ratios
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-23)Particulate organic carbon (POC) produced in sea ice is often included in stable isotopic food web studies of polar seas as a single value of particulate organic matter (POM), i.e. ‘ice POM’. During 10 field trips to landfast ice off Alaska’s north coast, we examined the seasonal contribution of sea ice-associated meiofauna to total POM and the trophic structure within the sea ice using bulk carbon ... -
Relating polar bears killed, human presence, and ice conditions in Svalbard 1987–2019
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-28)Conflicts between humans and polar bears have been predicted to increase as polar bear prime habitat, sea ice, is decreasing. In Svalbard, a strict protection and control schemes have secured near complete records of bears killed and found dead since 1987. We analyzed the trend in the number of kills and related this to human visitation to the archipelago. We found a slight decrease in the number ... -
Dendrobeaniamine A, a new alkaloid from the Arctic marine bryozoan Dendrobeania murrayana
(Conference object; Konferansebidrag, 2019)Chemistry guided purification of the organic extract of the Arctic marine bryozoan <i>Dendrobeania murrayana</i> yielded one new compound, Dendrobeaniamine A, and it was present in abundant amounts in the organic extract. Dendrobeaniamine A is a fusion of long chain aliphatic fatty acid and the cationic amino acid residue arginine.The bioactivity and natural function of this compound thus remain to ... -
Foraging movements of humpback whales relate to the lateral and vertical distribution of capelin in the Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-24)Understanding how individual animals modulate their behaviour and movement patterns in response to environmental variability plays a central role in behavioural ecology. Marine mammal tracking studies typically use physical environmental characteristics that vary, and/or proxies of prey distribution, to explain predator movements. Studies linking predator movements and the actual distributions ... -
How risky is it? Perceived risk among Norwegian backcountry riders
(Conference object; Konferansebidrag, 2018)We use a hypothetical choice scenario to analyzefactors that affect the perceived risk of potentially risky backcountry terrain.Our results show thatfactors, which are expected to affect the objective level of risk (e.g., backcountry travel skills and experience), are correlated with the perceived level of risk. However, we also find suggestive evidence that social factors, which should not affect ... -
Are they experts? Self-assessed backcountry skills among backcountry skiers in Norway and North America
(Conference object; Konferansebidrag, 2018)We analyze how backcountry skiers’ perceived ability to manage avalanche terrain correlate with more objective measures of experience and skills, among 1209 backcountry riders in Norway and North America. We further analyze if self-assessed backcountry skills are affected by past experience of avalanches and close calls, risk attitudes, and demographics. Our results suggest that self-assessed skill ... -
Do recent trends in forecasted avalanche danger affect our perception of the current avalanche hazard?
(Conference object; Konferansebidrag, 2018) -
Slow progress towards a better regime for environmental impact assessments
(Conference object; Konferansebidrag, 2018)The purpose of the presentation is to give an overview of the status of environmental assessments in international law, and to review the progress of a global and a regional process in trying to improve the current regime. The international regime for environmental impact assessments (EIA) in the Arctic Ocean is symptomatic for the situation in most regional seas. There is a predominance of ... -
Identifying transferable skills to enhance Early Career Researchers employability
(Conference object; Konferansebidrag, 2018)Doctoral candidates are facing a diverse employment landscape that shifted significantly in the last decades, with less than 30 % of doctoral graduates working in academia or in research and development related jobs. In addition to becoming more inter-sectoral, working environments are becoming increasingly inter-national and inter-disciplinary. This development can make the employment requirements ... -
Conditions for Implementing Innovating Telemedicine Procedures After Hip Arthroplasty
(Chapter; Bokkapittel, 2020-10-13)Telemedicine technology offers a wide range of possibilities for improving various forms of healthcare services. These technologies can support and economize healthcare service processes including medical consultations, preparation for medical treatment and in the post-operative period. The increasing number of older people in developed countries increases the importance of telemedicine as a way ... -
The effect of CO2, total ammonia nitrogen and pH on growth of juvenile lumpfish (Cyclopterus lumpus)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-12)The objective of this study was to examine the effects of CO<sub>2</sub>, total ammonia nitrogen (TAN: nitrogen bound as either NH<sub>3</sub> or NH<sub>4</sub><sup>+</sup>) and pH on the growth and survival of juvenile lumpfish in a two-month growth study. The results demonstrate the complex interactions of these water quality variables. The specific growth rate (SGR) of the lumpfish was progressively ... -
Marine-derived products as functional feed additives in aquaculture: A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-27)The aquaculture industry is expanding to meet the daily requirements of humanity from high-quality seafood. In this regard, intensive aquaculture systems are suggested, resulting in high production but being challenged with immunosuppression and disease invaders. Antibiotics were used for a long time to protect and treat aquatic animals; however, continuous use led to severe food safety issues, ... -
Validation of pop-up satellite archival tags (PSATs) on Atlantic cod (Gadus morhua) in a Greenland fjord
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-28)Traditional tagging techniques are simple and cost-effective, but inferences require recaptures and data on movement/migration are limited to a start and end position at unpredictable intervals. Pop-up satellite archival tags (PSATs) offer other opportunities, as they provide positions at pre-programmed times and collect on-route data, which can be used to describe position, behavior, and habitat ... -
Diversity and ecology of aphyllophoroid fungi on driftwood logs on the shores of the Baltic Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-26)Driftwood is woody debris that is floating on the sea or brought onto the shore by the sea. It can have a natural origin but often it originates from human activities. Driftwood has a significant ecological role as a microhabitat for a large range of species. Dead-wood-associated aphyllophoroid fungi on driftwood have been studied rather little globally, and there are hardly any studies conducted ...
