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Predicting trawl catches using environmental DNA
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-07)Quantifying the biomass, or number of individuals, diversity, and distribution of marine species is a critical aspect of understanding and managing marine ecosystems. In recent years, there has been growing interest in using environmental DNA (eDNA) for marine ecosystem management and biodiversity assessment. However, the main challenge hindering eDNA applicability has been the inability to infer ... -
Spectrum of COVID-19 cases in Arkhangelsk, Northwest Russia: Findings from a population-based study linking serosurvey, registry data, and self-reports of symptoms
(Journal article; Tidsskriftartikkel, 2024-10-11)<p><i>Introduction</i> The spectrum of COVID-19 manifestations makes it challenging to estimate the exact proportion of people who had the infection in a population, with the proportion of asymptomatic cases likely being underestimated. We aimed to assess and describe the spectrum of COVID-19 cases in a sample of adult population aged 40–74 years in Arkhangelsk, Northwest Russia, a year after the ... -
Screening for viruses using unicellular eukaryotes as hosts
(Master thesis; Mastergradsoppgave, 2023-11-15)This master’s project delves into the microbial diversity of the Arctic region, with focus on the isolation and characterization of a yeast of the Cystobasidium genus and likely viruses capable of infecting it. The research also shows preliminary results pointing at the movement and chemotaxis capabilities of the yeast, presenting findings that have the potential to shape our understanding of microbial ... -
The prevalence of subdural blood products in extremely premature infants with no history of abusive head trauma, studied by magnetic resonance imaging around term-equivalent age
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-14)Background Prematurity and enlarged subarachnoid spaces are both hypothesised to represent an increased risk of subdural haemorrhages (SDHs) in infancy, both with and without a history of abuse.<p> <p>Objective To examine the prevalence of a previous haemorrhage, particularly SDHs, in infants born extremely prematurely around term-equivalent age; to examine intra- and inter-observer agreement ... -
Associations between use of antibiotic and non-antibiotic drugs on the gastrointestinal carriage of Klebsiella pneumoniae in a general adult population in Norway
(Master thesis; Mastergradsoppgave, 2021-11-14)Antimicrobial resistance has long been a problem and a struggle to compromise as life-threatening infections are harder to treat. Among common pathogens, Klebsiella pneumoniae (K.pneumoniae) can be a highly resistant bacteria associated with increased mortality when infecting critically ill and immunocompromised patients. Prevalence of gastrointestinal carriage depends on several risk factors. ... -
Atmospheric icing meteorological parameter study using field experiments and simulation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-12)Atmospheric icing on ground structures is a concern from design, operation, and safety perspectives. Supercooled water droplets size and liquid water content (LWC) are important weather parameters to better understand the ice accretion physics on ground structures. Most existing studies are based on measurements at high altitude. The study is based on the field results of a specific event (from ... -
Prediction ability in bilingual individuals: An eye tracking study with younger and older adults
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-18)Studies with monolingual speakers show that people predict upcoming linguistic elements during sentence processing. Linguistic prediction behavior has been found to be less consistent in studies with bilingual individuals performing in their non-native language and in neurotypical older monolingual adults. The present study utilized an eye-tracking paradigm to investigate whether bilingual younger ... -
Hyperspectral imaging and deep learning for parasite detection in white fish under industrial conditions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-09)Parasites in fish muscle present a significant problem for the seafood industry in terms of both quality and health and safety, but the low contrast between parasites and fish tissue makes them exceedingly difficult to detect. The traditional method to identify nematodes requires removing fillets from the production line for manual inspection on candling tables. This technique is slow, labor intensive ... -
A randomized trial on three different minimally invasive decompression techniques for lumbar spinal stenosis. Five years follow-up from the NORDSTEN-SST
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-24)Purpose The short-term clinical outcome for midline-preserving posterior decompression techniques was comparable. The aim of this study was to evaluate long-term clinical results after three different midline-preserving posterior decompression techniques.<p> <p>Material In the NORDSTEN spinal stenosis trial (NORDSTEN-SST) 437 patients were randomized to three different midline-retaining ... -
Optimization of trigonometric polynomials with crystallographic symmetry and spectral bounds for set avoiding graphs
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-05)We provide a new approach to the optimization of trigonometric polynomials with crystallographic symmetry. This approach widens the bridge between trigonometric and polynomial optimization. The trigonometric polynomials considered are supported on weight lattices associated to crystallographic root systems and are assumed invariant under the associated reflection group. On one hand the invariance ... -
Rupturing the illusion of Nordic peace - and where to go from here
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-28)The relationship between Nordic peace and levels of militarisation needs interogation, including how peace has relied upon previous levels of militarisation, and what role militarisation plays today. This is particularly important as civilian involvement in conflict escalation complicates easy (an increasingly blurry) divides between civilian and military, peace and war. -
Prisforedrag - Norsk Cardiologisk Selskaps forskningspris 2023
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)Det var en stor ære for meg å motta forskningsprisen. Jeg er takknemlig, ydmyk og stolt overfor Norsk cardiologisk selskap (NCS) og juryen. Få fra miljøet i Tromsø har mottatt prisen, og innenfor fagområdet preventiv kardiologi er det heller ikke mange prismottakere. Jeg ble veldig glad. Det var en stor begivenhet for meg å bli hyllet av mine kolleger, både fra min egen hjertemedisinske avdeling og ... -
Prototypical Self-Explainable Models Without Re-training
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)Explainable AI (XAI) has unfolded in two distinct research directions with, on the one hand, post-hoc methods that explain the predictions of a pre-trained black-box model and, on the other hand, self-explainable models (SEMs) which are trained directly to provide explanations alongside their predictions. While the latter is preferred in safety-critical scenarios, post-hoc approaches have received ... -
Sykepleiers erfaring med kommunal akutt døgnenhet i rurale områder
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-01)Bakgrunn: Samhandlingsreformen har ført til at flere pasienter mottar behandling i kommunal akutt døgnenhet (KAD) som et alternativ til sykehusinnleggelse. Innføring av KAD i sykehjem i distriktskommuner har gitt sykepleiere i primærhelsetjenesten nye oppgaver og ansvarsområder. Studien er gjennomført i Troms og Finnmark fylke. I distriktskommunene er det store geografiske avstander innad og til ... -
Primary School Students’ Relations to Physical Education in Northern Norway: Why Do Some Find the Subject Problematic?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-08)A global discourse surrounding physical education (PE) is shifting towards a stronger emphasis on inclusive practises, but research shows that some students still find the subject problematic. This study explores the relationship between students’ dread of physical education (PE) and overall school satisfaction among sixth graders in Tromsø Municipality, Norway, and identifies factors that might ... -
AI-Based Cropping of Ice Hockey Videos for Different Social Media Representations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-23)Sports multimedia is among the most prominent types of content distributed across social media today, and the retargeting of videos for diverse aspect ratios is essential for a suitable representation on different social media platforms. In this respect, ice hockey is quite challenging due to its agile movement pattern and speed, and because the main reference point (puck) is very small. In this ... -
Validating polyp and instrument segmentation methods in colonoscopy through Medico 2020 and MedAI 2021 Challenges
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-09-05)Automatic analysis of colonoscopy images has been an active field of research motivated by the importance of early detection of precancerous polyps. However, detecting polyps during the live examination can be challenging due to various factors such as variation of skills and experience among the endoscopists, lack of attentiveness, and fatigue leading to a high polyp miss-rate. Therefore, there is ... -
A Theoretical and Empirical Analysis of 2D and 3D Virtual Environments in Training for Child Interview Skills
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-12)This paper presents a detailed study of an AI-driven platform designed for the training of child welfare and law enforcement professionals in conducting investigative interviews with maltreated children. It achieves a subjective simulation of interview situation through the integration of fine-tuned GPT-3 models within the Unity framework. The study recruited participants from a range of backgrounds, ... -
Comparing open and robot-assisted partial nephrectomy – a single institution report
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-09-09)Background - Open partial nephrectomy (OPN) has previously been considered the gold standard procedure for treatment of T1 localized renal tumors. After introduction of robot assisted partial nephrectomy (RAPN) as an alternative method to OPN, OPN was gradually abandoned at our department. The aim of the study was to retrospectively compare the results of patients treated with either OPN or RAPN for ... -
Bioprospecting of inhibitors of EPEC virulence from metabolites of marine actinobacteria from the Arctic Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-30)A considerable number of antibacterial agents are derived from bacterial metabolites. Similarly, numerous known compounds that impede bacterial virulence stem from bacterial metabolites. Enteropathogenic Escherichia coli (EPEC) is a notable human pathogen causing intestinal infections, particularly affecting infant mortality in developing regions. These infections are characterized by microvilli ...