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Population dynamics of an island population of water voles Arvicola amphibius (Linnaeus, 1758) with one major predator, the eagle owl Bubo bubo (Linnaeus, 1758), in northern Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-09)Predator–prey relationships are of great significance to ecosystems, and their effects on the population dynamics of voles and lemmings (Microtinae) in Boreal and Arctic environments have long been of particular interest. A simple ecosystem with one major prey and one major predator could be an ideal setting for a study of their interactions. This is the situation on several small islands on the ... -
Distinct methane-dependent biogeochemical states in Arctic seafloor gas hydrate mounds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-02)Archaea mediating anaerobic methane oxidation are key in preventing methane produced in marine sediments from reaching the hydrosphere; however, a complete understanding of how microbial communities in natural settings respond to changes in the flux of methane remains largely uncharacterized. We investigate microbial communities in gas hydrate-bearing seafloor mounds at Storfjordrenna, offshore ... -
The Impact of Ambient Temperature on Low Carbon Energy Supply - Modelling and optimization studies on the supply of hydrogen energy from northern Norway
(Doctoral thesis; Doktorgradsavhandling, 2021-12-10)To avoid the worst impacts of climate change a rapid green energy transition is required where traditional fossil fuels are replaced by low-carbon alternatives. One attractive route to emissions reduction is blue hydrogen, which has lower CO<sub>2</sub> emissions that traditional hydrogen production. For hydrocarbon exporters, increased blue hydrocarbon production can be achieved in two main ways: ... -
Medication therapy and treatment goal achievement among persons with coronary heart disease in a general population - Guideline adherence, medication adherence and validation of medication use
(Doctoral thesis; Doktorgradsavhandling, 2021-12-13)<p><i>Aim -</i> To assess the adherence to medication therapy for secondary prevention and achievement of treatment goals in persons with coronary heart disease (CHD) in a general population. <p><i>Methods -</i> This project used data from the seventh wave of the Tromsø Study, alone and linked with data from the Norwegian Prescription database (NorPD). Participants self-reporting CHD were included ... -
Shifts in bacterial biodiversity along an environmental gradient in high-Arctic tundra
(Master thesis; Mastergradsoppgave, 2019-11-18)Arctic soil microbiomes may have to face drastic climate changes in the coming century. Currently, the arctic tundra act as a carbon sink due to slow decomposition rates of soil organic carbon, which partly owes to low temperatures and poor water drainage. However, with elevated temperatures, large, latent carbon pools stored in arctic permafrost are exposed to mineralization by the active layer ... -
Elucidation of the molecular responses during the primary infection of wild blueberry phenotypes with Monilinia vaccinii-corymbosi under field conditions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-27)Background - Monilinia blight caused by Monilinia vaccinii-corymbosi (Reade) Honey (M.vc) is a major disease of wild blueberry that can result in severe crop losses in the absence of an integrated disease management programme. The fungus causes blight in the emerging floral and vegetative buds, but the degree of susceptibility varies among the different wild blueberry phenotypes, ranging from the ... -
Obesity measures, metabolic health and their association with 15-year all-cause and cardiovascular mortality in the SAMINOR 1 Survey: a population-based cohort study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-21)Background - The mortality of metabolic-obesity phenotypes has been thoroughly studied, but it is not known if or how the association between mortality and body mass index (BMI), waist circumference or a body shape index (ABSI) differ in strata of cardiometabolic health status.<p> <p>Methods - We linked data on 12,815 men and women aged 36–79 years from the SAMINOR 1 Survey with mortality data ... -
Fortellinger om håp og håpløshet – Bærekraftsundervisning i antropocen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-12)Denne artikkelen handler om hvordan lærerstudenter i samfunnsfag bruker fortellinger om håp og håpløshet i relasjon til de pågående og irreversible klimaendringene som kjennetegner antropocen. Artikkelen spør hva som skjer med troen på bærekraft når klimaendringene blir stadig mer uttalte i form av økte gjennomsnittstemperaturer, ekstreme værhendelser og lange tørkeperioder, og hvordan dette påvirker ... -
Analysis of complex trophic networks reveals the signature of land-use intensification on soil communities in agroecosystems
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-14)Increasing evidence suggests that agricultural intensification is a threat to many groups of soil biota, but how the impacts of land-use intensity on soil organisms translate into changes in comprehensive soil interaction networks remains unclear. Here for the first time, we use environmental DNA to examine total soil multi-trophic diversity and food web structure for temperate agroecosystems along ... -
Protection of teleost fish against infectious diseases through oral administration of vaccines: Update 2021
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-10)Immersion and intraperitoneal injection are the two most common methods used for the vaccination of fish. Because both methods require that fish are handled and thereby stressed, oral administration of vaccines as feed supplements is desirable. In addition, in terms of revaccination (boosting) of adult fish held in net pens, oral administration of vaccines is probably the only feasible method to ... -
Prediction of Eye Colour in Scandinavians Using the EyeColour 11 (EC11) SNP Set
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-27)Description of a perpetrator’s eye colour can be an important investigative lead in a forensic case with no apparent suspects. Herein, we present 11 SNPs (Eye Colour 11-EC11) that are important for eye colour prediction and eye colour prediction models for a two-category reporting system (blue and brown) and a three-category system (blue, intermediate, and brown). The EC11 SNPs were carefully selected ... -
Shotgun-metagenomics based prediction of antibiotic resistance and virulence determinants in Staphylococcus aureus from periprosthetic tissue on blood culture bottles
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-21)Shotgun-metagenomics may give valuable clinical information beyond the detection of potential pathogen(s). Identification of antimicrobial resistance (AMR), virulence genes and typing directly from clinical samples has been limited due to challenges arising from incomplete genome coverage. We assessed the performance of shotgun-metagenomics on positive blood culture bottles (n = 19) with periprosthetic ... -
The bidirectional associations between leisure time physical activity change and body mass index gain. The Tromsø Study 1974–2016
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-18)Objectives: To examine whether leisure time physical activity changes predict subsequent body mass index (BMI) changes, and conversely, whether BMI changes predict subsequent leisure time physical activity changes. <p> <p>Methods: This prospective cohort study included adults attending ≥3 consecutive Tromsø Study surveys (time: T1, T2, T3) during 1974–2016 (n = 10779). If participants attended ... -
Optimization of a mixed refrigerant based H2 liquefaction pre-cooling process and estimate of liquefaction performance with varying ambient temperature
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-24)Hydrogen used as an energy carrier can provide an important route to the decarbonization of energy supplies, but realizing this opportunity will require both significantly increased production and transportation capacity. One route to increased transportation capacity is the shipping of liquid hydrogen, but this requires an energy-intensive liquefaction step. Recent study work has shown that the ... -
Ny ME-veileder innebærer en kursendring i behandlingen av kroniske utmattelsestilstander
(Chronicle; Kronikk, 2021)National Institute for Health and Care Excellence (NICE) har nylig publisert nye retningslinjer for behandling av langvarige medisinsk uforklarte utmattelsestilstander som myalgisk encefalopati (ME) og kronisk utmattelsessyndrom (CFS). Retningslinjene innebærer en relativt stor kursendring, blant annet er den tidligere vektleggingen av fysisk trening og mentale mestringsstrategier erstattet av råd ... -
Stable Regime, Historiography and Truth Commissions A Case Study of Pashtun Tahafuz Movement of Pakistan
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-01)This article discusses the Pashtun Tahafuz Movement's (PTM) demand for establishing a Truth and Reconciliation Commission (TRC) to facilitate the right to truth of victims of the war on terror in Pakistan. It highlights the tension among the right to truth, geopolitical considerations, and historiography in pursuit of transitional justice under a stable regime. It argues that Pakistan is not likely ... -
Erfaringer med økonomiske støtteordninger for tannbehandling hos personer som er behandlet for hode-halskreft
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11)Medlemmer i Munn- og halskreftforeningen mottok et spørreskjema for å kartlegge erfaringer med økonomiske refusjonsordninger for tannbehandling og kostnader til tannbehandling hos personer som er behandlet for hode-halskreft i Norge. I tillegg kartla vi utviklingen i Folketrygdens honorartakster for tannbehandling i perioden 2015-2020, og sammenlignet honorartakstene for 2021 med takstene for ... -
Substituting facial movements in singers changes the sounds of musical intervals
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-17)Cross-modal integration is ubiquitous within perception and, in humans, the McGurk effect demonstrates that seeing a person articulating speech can change what we hear into a new auditory percept. It remains unclear whether cross-modal integration of sight and sound generalizes to other visible vocal articulations like those made by singers. We surmise that perceptual integrative effects should ... -
On Jordan classes for Vinberg's theta-groups
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-23)V. L. Popov has recently introduced an analogue of Jordan classes (packets or decomposition classes) for the action of a θ-group (G0, V), showing that they are finitely-many, locally-closed, irreducible unions of G0-orbits of constant dimension partitioning V. We carry out a local study of their closures showing that Jordan classes are smooth and that their closure is a union of Jordan classes. We ... -
Organisering, styring og finansiering av infrastrukturar for FAIR forskingsdata og særleg relevante forvaltingsdata for forsking: Kva er føresetnaden for å lykkast innanfor mitt område, og kva betydning og verdi vil det ha å lykkast for forskning? Innspel til Datainfrastrukturutvalet
(Conference object; Konferansebidrag, 2021-11-19)