Viser treff 14581-14600 av 36927

    • Genome-resolved metagenomics suggests a mutualistic relationship between Mycoplasma and salmonid hosts 

      Rasmussen, Jacob A.; Villumsen, Kasper Rømer; Duchêne, David; Puetz, Lara; Delmont, Tom; Sveier, Harald; von Gersdorff Jørgensen, Louise; Præbel, Kim; Martin, Michael David; Bojesen, Anders Miki; Gilbert, Marcus Thomas Pius; Kristiansen, Karsten; Limborg, Morten T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-14)
      Salmonids are important sources of protein for a large proportion of the human population. Mycoplasma species are a major constituent of the gut microbiota of salmonids, often representing the majority of microbiota. Despite the frequent reported dominance of salmonid-related Mycoplasma species, little is known about the phylogenomic placement, functions and potential evolutionary relationships with ...
    • Radio wave propagation through the ionosphere 

      Rexer, Theresa (Doctoral thesis; Doktorgradsavhandling, 2021-11-24)
      The non-transient plasma that is closest to Earth is found in the ionosphere at altitudes above approximately 60 km. It is observed either by ground-based, in-situ, or space-borne instrumentation and utilized to study and determine plasma phenomena and dynamics and the near-Earth space. Through active modification experiments, transmitting high-power, high-frequency radio waves into the ionospheric ...
    • Tick Size and Price Reversal after Order Imbalance 

      Sirnes, Espen; Dinh, Minh Thi Hong (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-25)
      : It is well known that intraday returns tend to reverse the following intraday period, conditional on excess buying pressure on the bid or ask side. This suggests that liquidity providers “overreact” to order imbalance (OIB) by initially altering quotes so much that a negative autocorrelation is seen in mid-price returns. We investigate under which circumstances this behavior is most common. ...
    • The temporal development of cognitive behavioral therapy as treatment for unipolar depression. An evaluation based on three meta-analyses, focusing on time-trends, effect sizes, and associated moderators 

      Johnsen, Tom Johan (Doctoral thesis; Doktorgradsavhandling, 2021-11-29)
      The present thesis` main objective was to examine time-trends related to CBT as an anti-depressive treatment. A meta-analytic approach was the tool for such investigations, in which the formats of individual, group (GCBT), and mindfulness-based cognitive behavioral therapy (MCBT) were explored from a temporal point of view, and the results subsequently summarized in four articles. The meta-analyses ...
    • An App-Based Intervention for Adolescents Exposed to Cyberbullying in Norway: Protocol for a Randomized Controlled Trial 

      Kaiser, Sabine; Martinussen, Monica; Adolfsen, Frode; Breivik, Kyrre; Kyrrestad, Henriette (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-06)
      Background: Adolescents exposed to negative online events are at high risk to develop mental health problems. Little is known about what is effective for treatment in this group. NettOpp is a new mobile app for adolescents who have been exposed to cyberbullying or negative online experiences in Norway.<p> <p>Objective: The aim of this paper is to provide a description of the content of the ...
    • Relasjonsledelse - En studie av utvikling av relasjonskompetanse hos ledere 

      Uglem, Anja Helena Øfsti; Apeland Lande, Svanhild (Mastergradsoppgave; Master thesis, 2020-11-11)
      Utgangspunktet for mastergradsoppgaven vår er utvikling av relasjonskompetanse hos ledere som gjennomfører en formell lederutdanning. Hensikten med studien er å studere om medarbeidere opplever en endring av relasjonskompetansen hos lederen sin når denne har gjennomført en lederutdanning og hvordan denne endringen eventuelt oppleves. Forskningsmaterialet er samlet inn gjennom åpne intervju med tre ...
    • Heteronormativity in Norwegian Social Work Journals 

      Hernes-Giertsen, Merethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-30)
      The purpose of this review was to examine whether heteronormativity is reproduced or problematized within Norwegian social work journals. It is based on a study that explored how sexuality is addressed in social work journal articles and extends past reviews by also analysing heterosexuality. The data comprised of 572 articles published in the major Norwegian social work journals between ...
    • Time series cluster kernels to exploit informative missingness and incomplete label information 

      Mikalsen, Karl Øyvind; Ruiz, Cristina Soguero; Bianchi, Filippo Maria; Revhaug, Arthur; Jenssen, Robert (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-20)
      The time series cluster kernel (TCK) provides a powerful tool for analysing multivariate time series subject to missing data. TCK is designed using an ensemble learning approach in which Bayesian mixture models form the base models. Because of the Bayesian approach, TCK can naturally deal with missing values without resorting to imputation and the ensemble strategy ensures robustness to hyperparameters, ...
    • Alcohol consumption, endogenous estrogen and mammographic density among premenopausal women 

      Frydenberg, Hanne; Flote, Vidar Gordon; Larsson, Ine Marie; Barrett, Emily S.; Furberg, Anne-Sofie; Ursin, Giske; Wilsgaard, Tom; Ellison, Peter; McTiernan, Anne; Hjartåker, Anette; Jasienska, Grazyna; Thune, Inger (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-08-07)
      Introduction: Alcohol consumption may promote aromatization of androgens to estrogens, which may partly explain the observations linking alcohol consumption to higher breast cancer risk. Whether alcohol consumption is associated with endogenous estrogen levels, and mammographic density phenotypes in premenopausal women remains unclear.<p> <p>Methods: Alcohol consumption was collected by self-report ...
    • Genetic risk variants associated with in situ breast cancer 

      Campa, Daniele; Barrdahl, Myrto; Gaudet, Mia M.; Black, Amanda; Chanock, Stephen J.; Diver, W. Stephen; Gapstur, Susan M.; Haiman, Christopher; Hankinson, Susan; Hazra, Aditi; Henderson, Brian; Hoover, Robert N.; Hunter, David J.; Joshi, Amit; Kraft, Peter; Le Marchand, Loic; Lindström, Sara; Willett, Walter; Travis, Ruth C.; Amiano, Pilar; Siddiq, Afshan; Trichopoulos, Dimitrios; Sund, Malin; Tjønneland, Anne; Weiderpass, Elisabete; Peeters, Petra H.; Panico, Salvatore; Dossus, Laure; Ziegler, Regina G.; Canzian, Federico; Kaaks, Rudolf (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-13)
      Introduction: Breast cancer in situ (BCIS) diagnoses, a precursor lesion for invasive breast cancer, comprise about 20 % of all breast cancers (BC) in countries with screening programs. Family history of BC is considered one of the strongest risk factors for BCIS.<p><p>Methods: To evaluate the association of BC susceptibility loci with BCIS risk, we genotyped 39 single nucleotide polymorphisms (SNPs), ...
    • Fetal cardiac function at intrauterine transfusion assessed by automated analysis of color tissue Doppler recordings 

      Herling, Lotta; Johnson, Jonas; Ferm-Widlund, Kjerstin; Bergholm, Fredrik; Lindgren, Peter; Sonesson, Sven-Erik; Acharya, Ganesh; Westgren, Magnus (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-13)
      Background: Fetal anemia is associated with a hyperdynamic circulation and cardiac remodeling. Rapid intrauterine transfusion (IUT) of blood with high hematocrit and viscosity into the umbilical vein used to treat this condition can temporarily further affect fetal heart function. The aim of this study was to evaluate the short-term changes in fetal myocardial function caused by IUT using automated ...
    • Corporate social responsibility at lux* Resorts and hotels: Satisfaction and loyalty implications for employee and customer social responsibility 

      Ramkissoon, Haywantee; Mavondo, Felix; Sowamber, Vishnee (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-22)
      Corporate Social Responsibility (CSR) remains a hot topic in management. Yet, little is known about how well managers, employees and consumers are responding to CSR initiatives to align with the 2030 Agenda for Sustainable Development. Underpinned by well-established theories, this study develops a single integrative model of managers’, employees’ and consumers’ CSR. Data were collected from the ...
    • Developmental effects of embryonic exposure to a water-soluble fraction of crude oil on early life stages of capelin (Mallotus villosus) 

      Granlund, Adina Cassandra (Master thesis; Mastergradsoppgave, 2020-05-15)
      The rise in offshore oil and gas operations, maritime shipping and tourism in northern latitudes enhance the risk of petroleum pollution and anthropogenic impacts of oil-related compounds on sub-Arctic and Arctic organisms. In particular, there is a need to investigate the potential adverse effects of petroleum to the early life stages of capelin (<i>Mallotus villosus</i>), an important forage and ...
    • Electrospun Amphiphilic Nanofibers as Templates for In Situ Preparation of Chloramphenicol-Loaded Liposomes 

      Laidmae, Ivo; Meos, Andres; Alainezhad Kjærvik, Irja; Ingebrigtsen, Sveinung Gaarden; Skalko-Basnet, Natasa; Kirsimäe, Kalle; Romann, Tavo; Joost, Urmas; Kisand, Vambola; Kogermann, Karin (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-20)
      The hydration of phospholipids, electrospun into polymeric nanofibers and used as templates for liposome formation, offers pharmaceutical advantages as it avoids the storage of liposomes as aqueous dispersions. The objective of the present study was to electrospin and characterize amphiphilic nanofibers as templates for the preparation of antibiotic-loaded liposomes and compare this method with ...
    • Proactive Collision Avoidance for Autonomous Ships: Leveraging Machine Learning to Emulate Situation Awareness 

      Murray, Brian; Perera, Lokukaluge Prasad (Journal article; Tidsskriftartikkel; Peer reviewed, 2021)
      Autonomous ship technology is developing at a rapid pace, with the aim of facilitating safe ship operations. Collision avoidance is one of the most critical tasks that autonomous ships must handle. To support the level of safety associated with collision avoidance, this study suggests to provide autonomous ships with the ability to conduct proactive collision avoidance maneuvers. Proactive collision ...
    • Patient-tailored levothyroxine dosage with pharmacokinetic/pharmacodynamic modeling: A novel approach after total thyroidectomy 

      Brun, Vegard Heimly; Eriksen, Amund H.; Selseth, Ruth; Johansson, Kenth; Vik, Renate; Davidsen, Benedicte; Kaut, Michal; Hellemo, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-07)
      Background: After seven decades of levothyroxine (LT4) replacement therapy, dosage adjustment still takes several months. We have developed a decision aid tool (DAT) that models LT4 pharmacometrics and enables patient-tailored dosage. The aim of this was to speed up dosage adjustments for patients after total thyroidectomy.<p> <p>Methods: The DAT computer program was developed with a group of 46 ...
    • Parasitoids indicate major climate-induced shifts in arctic communities 

      Kankaanpää, Tuomas; Vesterinen, Eero; Hardwick, Bess; Schmidt, Niels M.; Andersson, Tommi; Aspholm, Paul E.; Barrio, Isabel C.; Beckers, Niklas; Bêty, Joël; Birkemoe, Tone; DeSiervo, Melissa; Drotos, Katherine H.I.; Ehrich, Dorothee; Gilg, Olivier; Gilg, Vladimir; Hein, Nils; Høye, Toke T.; Jakobsen, Kristian M.; Jodouin, Camille; Jorna, Jesse; Kozlov, Mikhail V.; Kresse, Jean-Claude; Leandri-Breton, Don-Jean; Lecomte, Nicolas; Loonen, Maarten; Marr, Philipp; Monckton, Spencer K.; Olsen, Maia; Otis, Josée-Anne; Pyle, Michelle; Roos, Ruben Erik; Raundrup, Katrine; Rozhkova, Daria; Sabard, Brigitte; Sokolov, Aleksandr; Sokolova, Natalia; Solecki, Anna M.; Urbanowicz, Christine; Villeneuve, Catherine; Vyguzova, Evgenya; Zverev, Vitali; Roslin, Tomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-05)
      Climatic impacts are especially pronounced in the Arctic, which as a region is warming twice as fast as the rest of the globe. Here, we investigate how mean climatic conditions and rates of climatic change impact parasitoid insect communities in 16 localities across the Arctic. We focus on parasitoids in a widespread habitat, Dryas heathlands, and describe parasitoid community composition in terms ...
    • Circle of Willis variants and cerebrovascular health: Representations, prevalences, functions and related consequences. Incomplete anatomy and changes to flow appear to induce more unfavourable health outcomes 

      Hindenes, Lars Bakke (Doctoral thesis; Doktorgradsavhandling, 2021-12-03)
      <p><i>Background:</i> The Circle of Willis (CoW) is a circular structure of arteries in which most of the blood flowing to our brains pass through. The structure has primarily been regarded as important for its ability to redistribute blood flow in case of acute arterial occlusion, but may also have a role in dampening the pressure gradient in cerebral blood flow. The CoW anatomy also varies ...
    • Life above water: small-scale fisheries as a human experience 

      Jentoft, Svein (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-09)
      “Life under water” is UN Sustainable Development Goal No. 14, under which small-scale fisheries fall. Yet, most of what is happening in small-scale fisheries, and certainly those things that are interesting to social scientists, are taking place above water—on the water and by the water. Small-scale fishers make their living off the fish that swims in the ocean, but they do so with the lives they ...
    • Broadening the perspective on ocean privatizations: an interdisciplinary social science enquiry 

      Schülter, Achim; Bavinck, Jan Maarten; Hadjimichael, Maria; Partelow, Stefan; Said, Alicia; Ertör, Irmak (Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
      Privatization of the ocean, in the sense of defining more exclusive property rights, is taking place in increasingly diverse ways. Because of more intensive and diversified use patterns and increasing sustainability challenges, it is likely that this process will continue into the future. We argue that the nature of privatization varies from one oceanic domain to another. We differentiate four ...