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Association of vitamin D status with arterial blood pressure and hypertension risk: A mendelian randomisation study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-06-25)Background Low plasma 25-hydroxyvitamin D (25[OH]D) concentration is associated with high arterial blood pressure and hypertension risk, but whether this association is causal is unknown. We used a mendelian randomisation approach to test whether 25(OH)D concentration is causally associated with blood pressure and hypertension risk.<p> <p>Methods In this mendelian randomisation study, we generated ... -
Crosslinguistic influence in third language acquisition
(Doctoral thesis; Doktorgradsavhandling, 2022-06-20)<p>In this dissertation, crosslinguistic influence in third language (L3) acquisition is investigated in three articles that explore how linguistic variables affect the influence of pre-existing grammars. The goal is to contribute to novel insights about the cognitive process of language acquisition. <p>We collected data in offline acceptability judgements tasks. In articles 1 and 2, we tested ... -
Indirect food web interactions mediated by rodent cycles: Relative roles of lemmings and voles
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013-12-23)Production cycles in birds are proposed as prime cases of indirect interactions in food webs. They are thought to be driven by predators switching from rodents to bird nests in the crash phase of rodent population cycles. Although rodent cycles are geographically widespread and found in different rodent taxa, bird production cycles appear to be most profound in the high Arctic where lemmings ... -
Study of Ice Accretion on Horizontal Axis Wind Turbine Blade Using 2D and 3D Numerical Approach
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-07)In order to optimize the wind turbine operation in ice prone cold regions, it is important to better understand the ice accretion process and how it affects the wind turbine performance. In this paper, Computational Fluid Dynamics (CFD) based 2D and 3D numerical techniques are used to simulate the airflow/droplet behaviour and resultant ice accretion on a 300 kW wind turbine blade. The aim is to ... -
Kan kornkrisen redde flere brød?
(Chronicle; Kronikk, 2022-03-27)Krig, nedbør og økte priser på olje, kunstgjødsel og papiremballasje fører til kornkrise som gjør at Ola og Kari Nordmann må betale mer for sitt daglige brød i tiden fremover. -
Response and resilience of the microbial methane filter to ecosystem changes in Arctic peatlands
(Doctoral thesis; Doktorgradsavhandling, 2022-06-30)<p>Climate change is a major concern in the Arctic region, as large amounts of organic carbon (C) are stored in permafrost soils and sediments. Increasing average temperatures have the potential to release that C and making it available to biologic activity. Carbon-rich, anoxic soils such as peatlands are inhabited by methanogenic archaea that can metabolize by-products of microbial C decomposition ... -
Upper cretaceous-paleogene stratigraphy and development of the Mímir High, Vøring transform margin, Norwegian Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-19)Transform margins represent strike-slip type of plate boundaries that form during continental breakup and initial ocean opening. They are often characterized by margin-parallel highs with exposed pre- and syn-rift sequences. The Vøring Transform Margin, offshore mid-Norway, initiated in the earliest Eocene during the opening of the NE Atlantic. Here, 2D seismic reflection data reveal a transform ... -
Læstadiansk reaksjon på religion i offentligheten: Etablering av egne skoler
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-26)i 2014 finnes det to grunnskoler i regi av læstadianske<sup>1</sup> grupperinger i Nord-Norge. Straumfjordnes skole i Nordreisa kommune i Nord-Troms har forankring i den luthersk-læsta - dianske menighet, også kalt Lyngen-retningen.<sup>2</sup> Straumfjordnes skole<sup>3</sup> er en fådelt skole som har elever på 1.–10. trinn. Skoleåret 2013–2014 hadde skolen 62 elever og 11 lærere. Den andre ... -
Nattverd, kropp, erindring
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-06-02)Minnestudier har fra dets gjennombrudd på 1980-tallet vist seg relevant for religionsvitenskap og teologi, ikke minst gjennom studier av hvordan minnet opprettholdes og formes av skrift, kanon og monumenter. når oppmerksomheten i den følgende artikkelen skal rettes mot den kristne nattverdsforståelsen, kommer en ofte underbelyst side til syne: Erindringen har også en kroppslig dimensjon. I ... -
Recognizing key sedimentary facies and their distribution in mixed turbidite–contourite depositional systems: The case of the Pacific margin of the Antarctic Peninsula
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-01)Interplay of deep-water sedimentary processes is responsible for building a myriad of features and deposits across mixed turbidite–contourite systems, from <5 cm beds to >200 km long sedimentary drifts. Investigations of the spatial and temporal variability of their sedimentary facies and facies associations is crucial to reveal the dynamics between along-slope bottom currents and down-slope turbidity ... -
A Phenomenographic Analysis Of Students’ Experience Of Geological Time
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-01)Geological time is by many geoscience instructors considered a threshold concept for geoscience students, being a central concept for how we experience geosceince phenomena that takes place on a spatio-temporal scale ranging from micro (e.g. cloud formation) to macro (e.g. plate tectonics). If one wishes to understand geoscience phenomena that goes beyond human perception, one must move from the ... -
Exploring Multimodal Literacy in Language Teaching and Learning
(Chapter; Bokkapittel, 2020-03)In this chapter, we present the research method we used to investigate multimodal literacy in an English-language classroom in a Norwegian lower secondary school. The analytic approach we present combines multimodal analysis with a design-oriented view on learning as a social meaning-making process. The analysis is applied in a smallscale qualitative study of multimodality and literacy in an English ... -
Towards a unifying pan-arctic perspective: A conceptual modelling toolkit
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-17)The Arctic Ocean is overwhelmingly forced by its lateral boundaries, and interacts with, the global system. For the development of nested conceptual models of the Arctic Ocean ecosystem we here choose the full pan-Arctic as our focal scale. Understanding the pan-Arctic scale, however, requires that we look at the underlying scales of its major components, by considering regionality, connectivity and ... -
Transcriptome analysis reveals a high aerobic capacity in the whale brain
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-30)The brain of diving mammals is repeatedly exposed to low oxygen conditions (hypoxia) that would have caused severe damage to most terrestrial mammals. Some whales may dive for > 2 h with their brain remaining active. Many of the physiological adaptations of whales to diving have been investigated, but little is known about the molecular mechanisms that enable their brain to survive sometimes ... -
Risk Factors and Triggers of Venous Thromboembolism in Patients with Myocardial Infarction
(Doctoral thesis; Doktorgradsavhandling, 2022-06-17)<p>During the past decades, extensive data from the general population have revealed that patients with acute myocardial infarction (MI) are at increased risk of venous thromboembolism (VTE, i.e., deep vein thrombosis [DVT] and pulmonary embolism [PE]). The risk is highest in the initial 0-6 months following an acute MI, and declines rapidly thereafter. The explanation for the observed association ... -
Electricity interconnection and trade between Norway and Russia
(Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-26)Anticipated industrial growth in northern Norway, particularly of energy intensive industries such as hydrocarbons and mining, will inevitably result in increased electricity consumption. Northern Norway faces security of supply challenges, and substantial investments are needed in generation, transmission and distribution capacity in order to meet the growing electricity demand. This makes it ... -
Chiral recognition by fullerenes: CHFClBr enantiomers in the C82 cage
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-18)Density-functional theory and symmetry-adapted perturbation theory calculations on complexes of the enantiomers of CHFClBr with the most stable isomer of C<sub>82</sub>-3 fullerene show that despite the guests being too large for the host cage, they are nevertheless stabilized by electrostatic interactions. The complexation leads to considerable strain on the cage and the guests accompanied by ... -
Geographic and socioeconomic variation in the utilisation of specialist health care services in Norway – Three selected health care services
(Doctoral thesis; Doktorgradsavhandling, 2022-06-21)<p>The overall theme of this thesis is geographic and socioeconomic variation in the use of specialist health care services. Three different health care services were studied. Complete population data on individual level with high level of quality from nationwide registries (i.e., The Norwegian Patient Registry, The Cancer Registry of Norway and Statistics Norway) were used in the analysis. <p>The ... -
Socioeconomic and geographic differences in ablation of atrial fibrillation in Norway - a national cohort study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-14)<p><i>Background -</i> The aim of this study was to analyse whether there are patient related or geographic differences in the use of catheter ablation among atrial fibrillation patients in Norway. <p><i>Methods -</i> National population-based data on individual level of all Norwegians aged 25 to 75 diagnosed with atrial fibrillation from 2008 to 2017 were used to study the proportion treated with ... -
Oral contraceptive use and reproductive factors and risk of ovarian cancer in the European Prospective Investigation into Cancer and Nutrition
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011-09-03)BACKGROUND: It is well established that parity and use of oral contraceptives reduce the risk of ovarian cancer, but the associations with other reproductive variables are less clear.<p> <p>METHODS: We examined the associations of oral contraceptive use and reproductive factors with ovarian cancer risk in the European Prospective Investigation into Cancer and Nutrition. Among 327 396 eligible ...