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norskArtikler, rapporter og annet (UB): Recent submissions
Now showing items 1461-1480 of 3260
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Long-term studies of mesosphere and lower-thermosphere summer length definitions based on mean zonal wind features observed for more than one solar cycle at middle and high latitudes in the Northern Hemisphere
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-20)Specular meteor radars (SMRs) and partial reflection radars (PRRs) have been observing mesospheric winds for more than a solar cycle over Germany (∼ 54◦ N) and northern Norway (∼ 69◦ N). This work investigates the mesospheric mean zonal wind and the zonal mean geostrophic zonal wind from the Microwave Limb Sounder (MLS) over these two regions between 2004 and 2020. Our study focuses on the ... -
Some new results and inequalities for subsequences of Nörlund logarithmic means of Walsh–Fourier series
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-07)We prove that there exists a martingale f ∈ H<sub>p</sub> such that the subsequence {L<sub>2n</sub f} of Nörlund logarithmic means with respect to the Walsh system are not bounded from the martingale Hardy spaces H<sub>p</sub> to the space weak – L<sub>p</sub> for 0 < p < 1. We also prove that for any f ∈ L<sub>p</sub>, p ≥ 1, L<sub>2n</sub> f converge to f at any Lebesgue point x. Moreover, ... -
Effects of Early Thermal Environment on Growth, Age at Maturity, and Sexual Size Dimorphism in Arctic Charr
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-27)The effects of early thermal environment on growth, age at maturity, and sexual size dimorphism in Arctic charr (Salvelinus alpinus) are investigated. This study is a 654-day long rearing trial split into two sequential experimental phases termed EP1 and EP2 and lasting 315 and 339 days, respectively. EP1 started at the end of the yolk sac stage when the experimental fish were divided into three ... -
Treatment of Cardiovascular Dysfunction with PDE3-Inhibitors in Moderate and Severe Hypothermia—Effects on Cellular Elimination of Cyclic Adenosine Monophosphate and Cyclic Guanosine Monophosphate
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-13)<p><b>Introduction:</b> Rewarming from accidental hypothermia is often complicated by hypothermia-induced cardiovascular dysfunction, which could lead to shock. Current guidelines do not recommend any pharmacological treatment at core temperatures below 30°C, due to lack of knowledge. However, previous in vivo studies have shown promising results when using phosphodiesterase 3 (PDE3) inhibitors, ... -
Subglacial water drainage, storage, and piracy beneath the Greenland ice sheet
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-26)Meltwater drainage across the surface of the Greenland ice sheet (GrIS) is well constrained by measurements and modeling, yet despite its critical role, knowledge of its transit through the subglacial environment remains limited. Here we present a subglacial hydrological analysis of a land-terminating sector of the GrIS at unprecedented resolution that predicts the routing of surface-derived meltwater ... -
Expanding Opportunities for Work and Citizenship: Participation of People with Intellectual Disabilities in Voluntary Work
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-29)This article discusses the findings of a study into how voluntary work provides opportunities for work inclusion and citizenship for people with intellectual disabilities. The study is based on qualitative interviews with 12 people with intellectual disabilities engaged in voluntary work in Iceland and Norway. Based on collective qualitative analysis, opportunities for meaningful social relations, ... -
The evolution of methane vents that pierce the hydrate stability zone in the world's oceans
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-07-16)We present a one-dimensional model that couples the thermodynamics of hydrate solidification with multiphase flow to illuminate how gas vents pierce the hydrate stability zone in the world's oceans. During the propagation phase, a free-gas/hydrate reaction front propagates toward the seafloor, elevating salinity and temperature to three-phase (gas, liquid, and hydrate) equilibrium. After the reaction ... -
Platelet-depletion of whole blood reveals that platelets potentiate the release of IL-8 from leukocytes Into plasma in a thrombin-dependent manner
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-04)Objective: In a recent study, we found an elevated level of interleukin 8 (IL-8) in response to bacterial incubation in thrombin-sufficient human whole blood anticoagulated by the fibrin polymerization blocking peptide GPRP. Whether thrombin directly activated leukocytes or mediated the release via thrombin-dependent activation of platelets remains unresolved. Herein, we addressed the role of ... -
The development of the northern lights tourism network
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-18)Drawing on actor-network theory (ANT), we traces the translations and ordering processes underlying the fastgrowing northern lights tourism network in northern Norway. It also shows how the outbreak of the COVID-19 pandemic, from March 2020, represented the most severe market shock. The results, following a multi-methods qualitative approach, unpack how this network emerged, accelerated and matured ... -
Deep demersal fish communities respond rapidly to warming in a frontal region between Arctic and Atlantic waters
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-23)The assessment of climate impact on marine communities dwelling deeper than the well-studied shelf seas has been hampered by the lack of long-term data. For a long time, the prevailing expectation has been that thermal stability in deep ocean layers will delay ecosystem responses to warming. Few observational studies have challenged this view and indicated that deep organisms can respond ... -
Physical performance and loading for six playing positions in elite female football: full-game, end-game, and peak periods
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-22)The present study investigated the position-specific match demands and heart rate response of female elite footballers, with special focus on the full-game, end-game, and peak-intensity periods. In total, 217 match observations were performed in 94 players from all eight teams of the best Danish Women's League, that is, goalkeepers (GK, n = 10), central defenders (CD, n = 23), full-backs ... -
Usability Testing of a Social Media Chatbot for Increasing Physical Activity Behavior
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-20)Digital interventions for increasing physical activity behavior have shown great potential, especially those with social media. Chatbots, also known as conversational agents, have emerged in healthcare in relation to digital interventions and have proven effective in promoting physical activity among adults. The study’s objective is to explore users’ experiences with a social media chatbot. The ... -
Anxiolytic‐like Effects of the Positive GABAB Receptor Modulator GS39783 Correlate with Mice’s Individual Basal Anxiety and Stress Reactivity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-16)Positive gamma-aminobutyric acid type B (GABAB) receptor modulators such as GS39783 have showed anxiolytic-like effects in several studies while such effects were absent in other studies. These conflicting findings led us hypothesize that the anxiolytic-like effects of such compounds depend on the individual basal anxiety and/or the anxiogenic properties of the used tests. The present study ... -
Artificial Intelligence for Colonoscopy: Past, Present, and Future
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-22)During the past decades, many automated image analysis methods have been developed for colonoscopy. Realtime implementation of the most promising methods during colonoscopy has been tested in clinical trials, including several recent multi-center studies. All trials have shown results that may contribute to prevention of colorectal cancer. We summarize the past and present development of ... -
Patient participation in interprofessional learning and collaboration with undergraduate health professional students in clinical placements: A scoping review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-12)Undergraduate students obtaining interprofessional education (IPE) in clinical placements are expected to develop patient- and family-centered competencies; however, the patients’ role in IPE requires attention. We explored how patient participation was articulated in the IPE research and literature from 2010 to 2020. 73 articles were eligible for inclusion and were subjected to a two-folded ... -
Inflammation in the early phase after kidney transplantation is associated with increased long-term all-cause mortality
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-30)In the general population, low-grade inflammation has been established as a risk factor for all-cause mortality. We hypothesized that an inflammatory milieu beyond the time of recovery from the surgical trauma could be associated with increased long-term mortality in kidney transplant recipients (KTRs). This cohort study included 1044 KTRs. Median follow-up time post-engraftment was 10.3 years. ... -
Kinetic Study of the Oxidative Addition Reaction between Methyl Iodide and [Rh(imino-β-diketonato)(CO)(PPh)3] Complexes, Utilizing UV–Vis, IR Spectrophotometry, NMR Spectroscopy and DFT Calculations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-16)The oxidative addition of methyl iodide to [Rh(β-diketonato)(CO)(PPh)<sub>3</sub> ] complexes, as modal catalysts of the first step during the Monsanto process, are well-studied. The β-diketonato ligand is a bidentate (BID) ligand that bonds, through two O donor atoms (O,O-BID ligand), to rhodium. Imino-β-diketones are similar to β-diketones, though the donor atoms are N and O, referred to as ... -
Joint effect of particulate matter and cigarette smoke on women’s sex hormones
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-08)Background - Although relationships between exposure to air pollution and reproductive health are broadly studied, mechanisms behind these phenomena are still unknown. The aim of the study was to assess whether exposure to particulate matter (PM10) and tobacco smoking have an impact on menstrual profiles of 17β-estradiol (E2) and progesterone (P) and the E2/P ratio.<p> <p>Methods - Levels of sex ... -
Quality of Life instruments and their psychometric properties for use in parents during pregnancy and the postpartum period: a systematic scoping review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-09)Purpose: To identify instruments used to measure parents’ Quality of Life (QoL) during pregnancy and the postpartum period, and to describe their characteristics and psychometric properties.<p> <p>Methods: For this scoping review we conducted systematic literature searches in MEDLINE, EMBASE, PsychINFO, CINAHL and HaPI in mid-December 2020, to identify studies evaluating psychometric properties. ... -
Identification and molecular characterization of Brucella abortus and Brucella melitensis isolated from milk in cattle in Azerbaijan
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-15)Background - Azerbaijan currently ranks thirteenth in global incidence of human brucellosis, with an estimated annual incidence through 2000 at over 50 cases per million. Brucella melitensis has been isolated from patients and is thought to have been acquired through contact with small ruminants or as a foodborne infection. To reduce the burden of human brucellosis, the Azerbaijani government began ...
