Collections in this community

Recent additions

  • Solar illumination dependence of the auroral electrojet intensity: Interplay between the solar zenith angle and dipole tilt 

    Ohtani, Shinici; Gjerløv, Jesper; Johnsen, Magnar Gullikstad; Yamauchi, Masatoshi; Brändström, Urban; Lewis, Andrew M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-18)
    The present study investigates the dependence of the local auroral electrojet (AEJ) intensity on solar illumination by statistically examining northward geomagnetic disturbances in the auroral zone in terms of the solar zenith angle χ. It is found that on the dayside, both westward and eastward electrojets (WEJ and EEJ) are more intense for smaller χ, suggesting that the solar extreme ultraviolet‐induced ...
  • Physical activity levels in adults and elderly from triaxial and uniaxial accelerometry. The Tromsø Study 

    Sagelv, Edvard Hamnvik; Ekelund, Ulf; Pedersen, Sigurd; Brage, Søren; Hansen, Bjørge Hermann; Johansson, Jonas; Grimsgaard, Sameline; Nordström, Anna; Horsch, Alexander; Hopstock, Laila Arnesdatter; Morseth, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-03)
    <i>Introduction</i> - Surveillance of physical activity at the population level increases the knowledge on levels and trends of physical activity, which may support public health initiatives to promote physical activity. Physical activity assessed by accelerometry is challenged by varying data processing procedures, which influences the outcome. We aimed to describe the levels and prevalence estimates ...
  • Avalanche decision-making frameworks: Factors and methods used by experts 

    Landrø, Markus; Hetland, Audun; Engeset, Rune; Pfuhl, Gerit (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-31)
    The snowy mountains of the world attract more and more backcountry recreationalists. Besides beauty and joy, traveling in avalanche terrain can involve risk of injury and even death. A correct assessment of avalanche danger and following a correct decision is crucial. This requires a thorough evaluation of a range of factors. To aid these decisions several decision-making frameworks (DMF) have been ...
  • Aina Nøding, Claus Fasting: Dikter, journalist, opplysningspioner (Oslo: Scandinavian Academic Press, 2018). 440 pp. 

    Aspaas, Per Pippin (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-18)
  • The paleozoic evolution of the Olga Basin region, Northern Barents Sea: A link to the Timanian orogeny 

    Klitzke, Peter; Franke, Dieter; Ehrhardt, Axel; Lutz, Rüdiger; Reinhardt, Lutz; Heyde, Ingo; Faleide, Jan Inge (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-15)
    The evolution of the Olga Basin region in the northern Norwegian Barents Sea and its relation to the Caledonian and Timanian orogenies is poorly understood due to sparse geophysical data and the lack of well control. In 2015, the German Federal Institute for Geosciences and Natural Resources (BGR) acquired deep multichannel seismic lines as well as gravity and magnetic data. The new seismic data ...
  • Stimulating release of undersized fish through a square mesh panel in the Basque otter trawl fishery 

    Cuende, Elsa; Arregi, Luis; Herrmann, Bent; Sistiaga, Manu Berrondo; Onandia, Inigo (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-19)
    Discards of regulated species in the Basque mixed trawl fishery are a challenge. In 2006, a square mesh panel (SMP) was introduced in the fishery to increase the release efficiency of undersized fish. However, studies have shown that the selectivity in this fishery is based on codend selectivity and the release through the SMP is inefficient due to low contact between fish and the SMP. In order to ...
  • Researching phonological variation in child, learner and adult speech: The case of schwa in French 

    Andreassen, Helene N. (Conference object; Konferansebidrag, 2019-11-11)
    Phonological variation can be defined as describing “a situation in which a single morpheme can be realized in more than one phonetic form in a single environment” (Coetzee & Pater, 2011, p. 401). In the latter decades, research on this integral part of grammar has become increasingly important, resulting not only in a growing literature on the topic, but also in large datasets on which hypotheses ...
  • Knausen. Undersøkelse av tidlig-mesolittisk boplass i Tromsø kommune 

    Niemi, Anja Roth; Oppvang, Janne (Research report; Forskningsrapport, 2019)
    Deler av en lokalitet fra eldre steinalder ble undersøkt i 2017. Det undersøkte området har inngått i en større boplass som i dag er delvis forstyrret eller fjernet av bebyggelse, dyrking og kjørespor. Det ble avdekket en sannsynlig teltring samt utkanten av en konsentrasjon av littisk materiale langs en terrasse som i forhistorisk tid vendte mot en skjermet bukt. Det ble også funnet materiale i ...
  • OJS is not enough 

    Frantsvåg, Jan Erik (Conference object; Konferansebidrag, 2019-11)
  • Short Report: Social Perception of High School Students with ASD in Norway 

    Skafle, Ingjerd; Nordahl-Hansen, Anders; Øien, Roald A (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-06)
    An increasing number of students with autism spectrum disorder (ASD) enroll in inclusive schools and classrooms. The aim of this study was to research how students with ASD experience the social aspect of inclusive high schools. Five adolescences with Asperger syndrome were interviewed, and the results show that high school was perceived as an important platform for social training, and an equally ...
  • Did Astronomy Constitute a Denominationally Neutral Space within the Republic of Letters? An Outline for the Use of Visualization Tools in the Study of Astronomical Correspondence 

    Aspaas, Per Pippin; Pataki, Katalin (Chapter; Bokkapittel, 2019-06-30)
    Numerous astronomical observatories were established across Europe over the course of the eighteenth century, rendering astronomy a distinct sub-branch of the Republic of Letters. Arguably, by the mid eighteenth century astronomy functioned as a denominationally neutral space and constituted a scientific discipline in the modern sense. Jesuits, Benedictines, Lutherans, Anglicans, Calvinists – all ...
  • DNA methylation patterns vary in boar sperm cells with different levels of DNA fragmentation 

    Khezri, Abdolrahman; Narud, Birgitte; Stenseth, Else-Berit; Johannisson, Anders; Myromslien, Frøydis Deinboll; Gaustad, Ann Helen; Wilson, Robert C.; Lyle, Robert; Morrell, Jane M.; Kommisrud, Elisabeth; Ahmad, Rafi (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-27)
    <i>Background</i> - Sperm DNA integrity is considered essential for successful transmission of the paternal genome, fertilization and normal embryo development. DNA fragmentation index (DFI, %) has become a key parameter in the swine artificial insemination industry to assess sperm DNA integrity. Recently, in some elite Norwegian Landrace boars (boars with excellent field fertility records), a higher ...
  • The Association Between Cardiorespiratory Fitness and Cognition Appears Neither Related to Current Physical Activity Nor Mediated by Brain-Derived Neurotrophic Factor in a Sample of Outpatients With Schizophrenia 

    Holmen, Tom Langerud; Egeland, Jens; Andersen, Eivind; Mordal, Jon; Andreassen, Ole Andreas; Ueland, Thor; Bigseth, Therese Torgersen; Bang-Kittilsen, Gry; Engh, John (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-25)
    <i>Objective</i>: We investigated whether levels of current physical activity (PA) contribute to the established relationship between cardiorespiratory fitness (CRF) and cognition in schizophrenia and whether brain-derived neurotrophic factor (BDNF) or its precursor proBDNF mediates this relationship. <p> <p><i>Method</i>: Sixty-one outpatients with schizophrenia spectrum disorders participated. ...
  • Maximilian Hell (1720–92) and the Ends of Jesuit Science in Enlightenment Europe 

    Aspaas, Per Pippin; Kontler, László (Book; Bok, 2020)
    The Viennese Jesuit court astronomer Maximilian Hell was a nodal figure in the eighteenth-century circulation of knowledge. He was already famous by the time of his celebrated 1769 expedition for the observation of the transit of Venus in northern Scandinavia. However, the 1773 suppression of his order forced Hell to develop ingenious strategies of accommodation to changing international and domestic ...
  • Organically-preserved multicellular eukaryote from the late Neoproterozoic Nyborg Formation, Arctic Norway. 

    Agic, Heda; Högström, Anette; Moczydlowska, Malgorzata; Jensen, Sören; Palacios, Teodoro; Meinhold, Guido; Ebbestad, Jan Ove R.; Taylor, Wendy L.; Høyberget, Magne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-10)
    Eukaryotic multicellularity originated in the Mesoproterozoic Era and evolved multiple times since, yet early multicellular fossils are scarce until the terminal Neoproterozoic and often restricted to cases of exceptional preservation. Here we describe unusual organically-preserved fossils from mudrocks, that provide support for the presence of organisms with differentiated cells (potentially an ...
  • Pile o'Sápmi and the Connections Between Art and Politics 

    Hansen, Hanna Horsberg (Journal article; Tidsskriftartikkel, 2019)
  • Abnormal phasic activity in saliency network, motor areas, and basal ganglia in Parkinson's disease during rhythm perception 

    Vikene, Kjetil; Skeie, Geir Olve; Specht, Karsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-29)
    Behavioral studies indicate that persons with Parkinson's disease have complexity dependent problems with the discrimination of auditory rhythms. Furthermore, neuroimaging studies show that rhythm processing activates many brain areas that overlap with areas affected by Parkinson's disease (PD). This study sought to investigate the neural correlates of rhythm processing in PD and healthy controls, ...
  • Spatio-temporal patterns of PAHs, PCBs and HCB in sediments of the western Barents Sea 

    Zaborska, Agata; Carroll, Jolynn; Pazdro, Ksenia; Pempkowiak, Janusz (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-11-25)
    We examine the composition and levels of organic contaminants (PAHs, PCB, HCB) in four sediment cores collected from the Barents Sea. We assess the influence of temporal variations in contaminant supplies and post-depositional reworking on contaminant distribution. Anthropogenic levels of ∑ 12PAH reached 95 ng g<sup>−1</sup>, higher inventories dominated by BKF were observed at southern stations, ...
  • Aspect angle sensitivity of pump-induced optical emissions at EISCAT 

    Kosch, Michael J.; Bryers, Carl; Rietveld, Michael T; Yeoman, Timothy K; Ogawa, Yasunobu (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-12-04)
    We investigate the aspect angle sensitivity of the pump-induced artificial optical emissions in the ionosphere over the European Incoherent Scatter Scientific Association (EISCAT) high-frequency transmitter facility at Ramfjord, Norway, as a function of the pump beam launch angle relative to the magnetic field line direction. The highest intensity optical emissions occur when the pump beam pointing ...
  • Current state of knowledge on biological effects from contaminants on arctic wildlife and fish 

    Dietz, Rune; Letcher, Robert J.; Desforges, Jean-Pierre; Eulaers, Igor; Sonne, Christian; Wilson, Simon; Andersen-Ranberg, Emilie; Basu, Niladri; Barst, Benjamin D.; Bustnes, Jan Ove; Bytingsvik, Jenny; Ciesielski, Tomasz Maciej; Drevnick, Paul E.; Gabrielsen, Geir W.; Haarr, Ane; Hylland, Ketil; Jenssen, Bjørn Munro; Levin, Milton; McKinney, Melissa A.; Nørregaard, Rasmus Dyrmose; Pedersen, Kathrine E.; Provencher, Jennifer; Styrishave, Bjarne; Tartu, Sabrina; Aars, Jon; Ackerman, Joshua T.; Rosing-Asvid, Aqqalu; Barrett, Rob; Bignert, Anders; Born, Erik W; Branigan, Marsha; Braune, Birgit; Bryan, Colleen E; Dam, Maria; Eagles-Smith, Collin A.; Evans, Marlene; Evans, Thomas J.; Fisk, Aaron T.; Gamberg, Mary; Gustavson, Kim; Hartman, C. Alex; Helander, Björn; Herzog, Mark P.; Hoekstra, Paul F.; Houde, Magali; Hoydal, Katrin; Jackson, Allyson K.; Kucklick, John; Lie, Elisabeth; Loseto, Lisa; Mallory, Mark L.; Miljeteig, Cecilie; Mosbech, Anders; Muir, Derek C.G.; Nielsen, Sanna Túni; Peacock, Elizabeth; Pedro, Sara; Peterson, Sarah H.; Polder, Anuschka; Rigét, Frank F.; Roach, Pat; Saunes, Halvor; Sinding, Mikkel Holger Strander; Skåre, Janneche Utne; Søndergaard, Jens; Stenson, Garry; Stern, Gary; Treu, Gabriele; Schuur, Stacy S.; Víkingsson, Gísli Arnór (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-13)
    Since the last Arctic Monitoring and Assessment Programme (AMAP) effort to review biological effects of the exposure to organohalogen compounds (OHCs) in Arctic biota, there has been a considerable number of new Arctic effect studies. Here, we provide an update on the state of the knowledge of OHC, and also include mercury, exposure and/or associated effects in key Arctic marine and terrestrial ...

View more