Browsing Faculty of Mathematics and Natural Sciences by Title

Now showing items 7519-7538 of 9927

    • Relationship between headaches and tinnitus in a Swedish study 

      Lugo, Alessandra; Edvall, Niklas K.; Lazar, Andra; Mehraei, Golbarg; Lopez-Escamez, Jose Antonio; Bulla, Jan; Uhlen, Inger; Canlon, Barbara; Gallus, Silvano; Cederroth, Christopher R (Journal article; Peer reviewed, 2020-05)
      The heterogeneity of tinnitus is likely accounting for the lack of effective treatment approaches. Headaches have been related to tinnitus, yet little is known on how headaches impact tinnitus. We use cross-sectional data ...

    • The relationship between interhemispheric asymmetries in polar ionospheric convection and the magnetic field line footpoint displacement field 

      Laundal, Karl Magnus; Madelaire, Michael; Ohma, Anders; Reistad, Jone Peter; Hatch, Spencer Mark (Journal article; Peer reviewed, 2022)
      Polar electrodynamics is largely controlled by solar wind and magnetospheric forcing. Different conditions can make plasma convection and magnetic field disturbances asymmetric between hemispheres. So far, these asymmetries ...

    • The Relationship Between Large Scale Thermospheric Density Enhancements and the Spatial Distribution of Poynting Flux 

      Billett, Daniel; Clausen, Lasse Boy Novock; Archer, William; McWilliams, Kathryn A.; Håland, Stein Egil; Reistad, Jone Peter; Burchill, J. K.; Patrick, M. R.; Humberset, Beate Krøvel; Anderson, B. J.; Perry, G. W. (Journal article; Peer reviewed, 2021)
      Large thermospheric neutral density enhancements in the cusp region have been examined for many years. The Challenging Minisatellite Payload (CHAMP) satellite for example has enabled many observations of the perturbation, ...

    • Relationship Between Microbial Growth and Hydraulic Properties at the Sub-Pore Scale 

      Hassannayebi, Neda; Jammernegg, Boris; Schritter, Johanna; Arnold, Pit; Enzmann, Frieder; Kersten, Michael; Loibner, Andreas P.; Fernø, Martin; Ott, Holger (Journal article; Peer reviewed, 2021)
      Accumulation of microbial biomass and its influence on porous media flow were investigated under saturated flow conditions. Microfluidic experiments were performed with model organisms, and their accumulation was observed ...

    • The relationship between the eddy-driven jet stream and northern European sea level variability 

      Mangini, Fabio; Chafik, Léon; Madonna, Erica; Li, Camille; Bertino, Laurent; Nilsen, Jan Even Øie (Journal article; Peer reviewed, 2021)
      Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between ...

    • Relationship between viral dose and outcome of infection in Atlantic salmon, Salmo salar L., post-smolts bath-challenged with salmonid alphavirus subtype 3 

      Jarungsriapisit, Jiraporn; Moore, Lindsey; Mæhle, Stig; Skår, Cecilie Kristin; Einen, Ann Cathrine B.; Fiksdal, Ingrid Uglenes; Morton, Hugh Craig; Stefansson, Sigurd Olav; Taranger, Geir Lasse; Patel, Sonal (Peer reviewed; Journal article, 2016-10-19)
      Salmonid alphavirus subtype 3 (SAV3) causes pancreas disease (PD) and adversely affects salmonid aquaculture in Europe. A better understanding of disease transmission is currently needed in order to manage PD outbreaks. ...

    • Relationships between calibrated ages and depth in stratigraphical sequences: an estimation procedure by mixed-effect regression 

      Heegaard, Einar; Birks, Harry John Betteley; Telford, Richard J. (Peer reviewed; Journal article, 2005)
      We present a procedure for estimating age-depth relationships in stratigraphical sequences by means of a generalized mixed-effect regression using an ancillary function for the partitioning of the fixed effect and the ...

    • Relationships between spawning ground identity, Latitude and early life thermal exposure in Northeast Arctic Cod 

      Opdal, Anders Frugård; Vikebø, Frode B.; Fiksen, Øyvind (Peer reviewed; Journal article, 2008)
      from its feeding grounds in the Barents Sea to various spawning banks along the Norwegian coast. Prior to the 1990s these banks were located on a wide latitudinal range from Finnmark (~71º N) to Møre (~63º N), or even to ...

    • Relative continent - mid-ocean ridge elevation: a reference case for isostasy in geodynamics 

      Theunissen, Thomas Louis Roger Dominique; Huismans, Ritske Sipke; Lu, Gang; Riel, Nicolas (Journal article; Peer reviewed, 2022)
      The choice of crustal and mantle densities in numerical geodynamic models is usually based on convention. The isostatic component of the topography is not calibrated to fit observations resulting in not very well constrained ...

    • The Relative Effect of Team-Based Learning on Motivation and Learning: A Self-Determination Theory Perspective 

      Jeno, Lucas Matias; Raaheim, Arild; Kristensen, Sara M.; Kristensen, Kjell Daniel Berg; Hole, Torstein Nielsen; Haugland, Mildrid Jorunn; Mæland, Silje (Peer reviewed; Journal article, 2017)
      We investigate the effects of team-based learning (TBL) on motivation and learning in a quasi-experimental study. The study employs a self-determination theory perspective to investigate the motivational effects of ...

    • Relative importance of tropopause structure and diabatic heating for baroclinic instability 

      Haualand, Kristine Flacké; Spengler, Thomas (Journal article; Peer reviewed, 2021)
      Misrepresentations of wind shear and stratification around the tropopause in numerical weather prediction models can lead to errors in potential vorticity gradients with repercussions for Rossby wave propagation and ...

    • Relative NAND-clause growth in Neg refutations 

      van den Broeck, Wim (Master thesis, 2022-01-18)
      Any given propositional discourse can be expressed as a NAND-OR theory – a set of OR-clauses (disjunctions of literals) and NAND-clauses (negated conjunctions e.g. ¬(x∧y)) – making NAND-OR theories similar to traditional ...

    • Relative particle yield fluctuations in Pb--Pb collisions at √sNN=2.76 TeV 

      Acharya, Shreyasi; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Neelima; Ahammed, Zubayer; Ahn, Sang Un; Aiola, Salvatore; Alme, Johan; Altenkaemper, Lucas; Fionda, Fiorella Maria Celeste; Lønne, Per-Ivar; Nystrand, Joakim; Rehman, Attiq ur; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Zhang, Hui; Zhou, Zhuo; Zhu, Hongsheng; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Akindinov, Alexander; Al-Turany, Mohammed; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; Alessandro, Bruno; Alfaro Molina, José Rubén; Ali, Yasir Turki Ben; ALICE, Collaboration (Peer reviewed; Journal article, 2019)
      First results on K/π, p/π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb--Pb collisions at sNN−−−√=2.76 TeV. The observable νdyn, which is defined in terms of ...

    • Relative Persistent Homology 

      Blaser, Nello; Brun, Morten (Journal article; Peer reviewed, 2020)
      The alpha complex efficiently computes persistent homology of a point cloud X in Euclidean space when the dimension d is low. Given a subset A of X, relative persistent homology can be computed as the persistent homology ...

    • Relative Persistent Homology 

      Blaser, Nello; Brun, Morten (Journal article; Peer reviewed, 2022)
      The alpha complex efficiently computes persistent homology of a point cloud X in Euclidean space when the dimension d is low. Given a subset A of X, relative Čech persistent homology can be computed as the persistent ...

    • Relative Spatial Positions of Tryptophan and Cationic Residues in Helical Membrane-active Peptides Determine Their Cytotoxicity 

      Rekdal, Øystein; Haug, Bengt Erik; Kalaaji, manar; Hunter, Howard N.; Lindin, Inger; Israelsson, Ingrid; Solstad, Terese; Yang, Nannan; Brandl, Martin; Mantzilas, Dimitrios; Vogel, Hans J. (Journal article; Peer reviewed, 2012)
      The cytotoxic activity of 10 analogs of the idealized amphipathic helical 21-mer peptide (KAAKKAA)3, where three of the Ala residues at different positions have been replaced with Trp residues, has been investigated. The ...

    • Relative transcript quantification by Quantitative PCR: Roughly right or precisely wrong? 

      Skern-Mauritzen, Rasmus; Frost, Petter; Nilsen, Frank (Journal article; Peer reviewed, 2005-04-26)
      Background When estimating relative transcript abundances by quantitative real-time PCR (Q-PCR) we found that the results can vary dramatically depending on the method chosen for data analysis. Results Analyses of ...

    • Relativistic effects in photoionizing a circular Rydberg state in the optical regime 

      Kjellsson Lindblom, Tor Hugo Iwao; Lindroth, Eva; Førre, Morten; Selstø, Sølve (Journal article; Peer reviewed, 2020)
      We study the photoionization process of a hydrogen atom initially prepared in a circular Rydberg state. The atom is exposed to a two-cycle laser pulse with a central wavelength of 800 nm. Before the atom approaches saturation, ...

    • Relativistic light-matter interaction: Describing the multi-photon ionization process utilizing time dilation 

      Johnsen, Esther Andrea Babunga (Master thesis, 2023-03-07)

    • Relaxation Schemes for degenerate parabolic convection-diffusion equations with a discontinuous coeffiicient 

      Rabenorolahy, Lalaniaina David (Master thesis, 2008)