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Exploring the Behavior of Open-Source Diffusion Model Inpainting Algorithms
(Master thesis; Mastergradsoppgave, 2023-01-26)The present study aimed to examine the performance of an open-source diffusion model inpainting algorithm under varying conditions of inpainting strength and mask radius. However, the results obtained were unexpected and raise significant concerns. Our findings indicate that the algorithm not only modifies the pixels within the designated mask, as intended, but also alters pixels out side of the ... -
Excellence
(Chapter; Bokkapittel, 2023)‘Excellence’ is a word that is used in academic and political discourses both as an unquestionable (and unquestioned) goal, as well as an undefinable standard against which academics and their work are assessed. This chapter seeks to ask some of the questions – and tease apart some of the underlying assumptions – that are encased in the ubiquitous use of the term. Ultimately, it shows that ‘excellence’ ... -
How much are you able to make your students learn? A study of the knowledge gain of students with high learning potential in the course of a teaching setup on wireless communication
(Master thesis; Mastergradsoppgave, 2022-06-09)This master thesis presents looks into how much knowledge can with high learning potential student gain from a tailored teacher setup. An tailored teaching program was created within the theme wireless communication and the data was collected mainly form an anonymous pre and post-test from four diffident subject groups from which the knowledge gain value g was calculated. The knowledge gain takes ... -
Appropriation of economic values in a rights-based fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-21)This study integrates resource-based and stakeholder theories to explore how values are generated and appropriated in a rights-based fishery. We argue that in the fish harvesting industry, a firm’s ability to create values is critically dependent on stakeholders outside the firm’s boundaries, such as society in general (the principal owner of the natural resource) and the fisheries management of ... -
A practical checklist for return of results from genomic research in the European contex
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-22)An increasing number of European research projects return, or plan to return, individual genomic research results (IRR) to participants. While data access is a data subject’s right under the General Data Protection Regulation (GDPR), and many legal and ethical guidelines allow or require participants to receive personal data generated in research, the practice of returning results is not straightforward ... -
What factors contributes to success in an event project? A case study of the learning experiences of students in a Project Management course.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-22)As part of the 2022 Norwegian Skiing Championship, the students at Harstad Business School, UiT the Arctic University of Norway, conducted a successful project event called ‘Sidetrack’ to provide fun and enjoyment for the public and the participants. Our study is based on qualitative interviews with eight students to reveal their learning experiences in relation to factors that contributes to the ... -
Evidence of Arctic methane emissions across the mid-Pleistocene
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-08)During the Pleistocene, Earth’s climate changed dramatically. The mid-Pleistocene transition (MPT; ~1.3–0.7 million years (Ma)) featured an important ice volume increase at both poles. The evolution of large Arctic ice sheets caused the sequestration of methane as free gas and hydrates in subseabed sediments. Ice volume changes, associated with variable pressures and temperatures, perturbed those ... -
A statistical study of convective and dynamic instabilities in the polar upper mesosphere above Tromsø
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-15)We have studied the convective (or static) and dynamic instabilities between 80 and 100 km above Tromsø (69.6° N, 19.2° E) using temperature and wind data of 6 min and 1 km resolutions primarily almost over a solar cycle obtained with the sodium lidar at Tromsø. First, we have calculated Brunt–Väisälä frequency (N) for 339 nights obtained from October 2010 to December 2019, and the Richardson ... -
Insecticidal gel bait for the decimation of Ctenolepisma longicaudatum (Zygentoma: Lepismatidae) populations in libraries, museums, and archives
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-08)The problem of bristletail Ctenolepisma longicaudatum (Zygentoma: Lepismatidae) in libraries, archives, and museums is increasing. It can cause damage to valuable and irreplaceable objects. We describe the effect of the use of insecticidal gel bait (active ingredient: indoxacarb) against C. longicaudatum populations in three libraries, seven archives, and seven museums in Norway and Austria. Pest ... -
Seismic characterization and source rock evaluation of Lower Cretaceous organic-rich units on the Norwegian Continental Shelf
(Doctoral thesis; Doktorgradsavhandling, 2023-04-20)Across the Norwegian Continental Shelf (NCS), the Upper Jurassic organic-rich shales are considered the main source rock unit charging most of the largest producing oil and gas fields. However, despite its extensive distribution across the NCS, this source rock unit is overmature and spent in the deep Cretaceous basins on the mid-Norwegian margin and the SW Barents Shelf. Documenting the presence ... -
Persistent Organic Pollutants and Type 2 Diabetes Mellitus. Addressing causality with repeated measurements using novel study designs
(Doctoral thesis; Doktorgradsavhandling, 2023-05-05)<p><i>Background:</i> Persistent Organic Pollutants (POPs) are chemicals that have negative impacts on the environment and biota and have been investigated as possible risk factors for Type 2 Diabetes Mellitus (T2DM). Other well-established risk factors for T2DM, for example, obesity, increased lipids, and age have been reported to influence human POP concentrations. Previous studies have reported ... -
Polybrominated diphenyl ethers in type 2 diabetes mellitus cases and controls: Repeated measurements prior to and after diagnosis
(Journal article; Tidsskriftartikkel, 2023-03-05)<p><i>Background:</i> Previous studies have reported associations between certain persistent organic pollutants (POPs) and type 2 diabetes mellitus (T2DM). Polybrominated diphenyl ethers (PBDEs) are a class of POPs that are found in increasing concentrations in humans. Although obesity is a known risk factor for T2DM and PBDEs are fat-soluble, very few studies have investigated associations between ... -
A-CHAIM: Near-Real-Time Data Assimilation of the High Latitude Ionosphere With a Particle Filter
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-28)The Assimilative Canadian High Arctic Ionospheric Model (A-CHAIM) is an operational ionospheric data assimilation model that provides a 3D representation of the high latitude ionosphere in Near-Real-Time (NRT). A-CHAIM uses low-latency observations of slant Total Electron Content (sTEC) from ground-based Global Navigation Satellite System (GNSS) receivers, ionosondes, and vertical TEC from ... -
Raman-spectroscopy and of optically trapped nanoparticles
(Mastergradsoppgave; Master thesis, 2022-11-06)The present work begins a large layer of experiments on the study of Raman radiation from extracellular vesicles. It is a promising method that provides unique information about the global biomolecular composition of a single vesicle or a small number of vesicles. Two physical phenomena are present in this work, Raman scattering and optical trapping. In Raman scattering, the scattered radiation ... -
HgCl2 addition to pore water samples from cold seeps can affect the geochemistry of dissolved inorganic carbon ([DIC], δ13CDIC)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-03)The conventional use of mercuric chloride (HgCl<sub>2</sub>) as an antimicrobial agent in water samples for dissolved inorganic carbon (DIC) analysis poses health and environmental risks related to its handling and disposal. Even though there is an increasing interest in quantifying pore water DIC contribution to the ocean carbon cycle and deep-sea acidification, the paucity of comparative studies ... -
Widespread natural methane and oil leakage from sub-marine Arctic reservoirs
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-30)Parceling the anthropogenic and natural (geological) sources of fossil methane in the atmosphere remains problematic due to a lack of distinctive chemical markers for their discrimination. In this light, understanding the distribution and contribution of potential geological methane sources is important. Here we present empirical observations of hitherto undocumented, widespread and extensive methane ... -
The effect of muscovite on the microstructural evolution and rheology of quartzite in general shear
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-13)We conducted general shear experiments on synthetic mixtures of quartz and muscovite aggregates at 800 °C and 1.5 GPa with 0.1 wt% H<sub>2</sub>O added in the Griggs apparatus to investigate the role of muscovite content on the microstructural evolution and rheological properties of quartz aggregates. Muscovite content varied between 0, 5, 10 and 25% muscovite. Mechanically, the sample strengths ... -
Co-products from the Atlantic salmon filleting industry – Their properties, stability and potential as human food ingredients
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-20)The present study impacts the growing knowledge about co-products obtained from the primary processing of Atlantic salmon (Salmo Salar L.) as food ingredients by highlighting their microbial and chemical composition and stability. The proximate composition varied between the co-products from the fatty belly-flap (34% lipid, 15% protein) to the leaner deboned meat (10% fat, 22% protein) (p < 0.001), ... -
Sensitivity Analysis of Thermal Degradation of Plastic Waste Using Statistically Assumed Exponential Factors and Activation Energies
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-04)The rise in the production of plastic waste has prompted the exploration of various recovery options instead of landfilling, burning, and other unethical ways of decomposing. The experimentally generated rate constants for the thermal processing of plastic waste do not yield enough liquid fuels and gases for commercial-scale usage. It is imperative to predict kinetic rate constants statistically ... -
Implications of Regurgitative Feeding on Plastic Loads in Northern Fulmars (Fulmarus glacialis): A Study from Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-22)Procellariiform seabirds like northern fulmars (Fulmarus glacialis) are prone to ingest and accumulate floating plastic pieces. In the North Sea region, there is a long tradition to use beached fulmars as biomonitors for marine plastic pollution. Monitoring data revealed consistently lower plastic burdens in adult fulmars compared to younger age classes. Those findings were hypothesized to partly ...