• Investigation of the possibilities for seabottom characterization using echosounder data 

      Heggen, Anja (Master thesis, 2009-11-18)
      This thesis focuses mainly on using the information present in the first echo returned from the seafloor, using a normal-incidence echosounder, to characterize or classify the seabed. This is done using a monostatic setup ...
    • Investigation of the putative iron reducing capabilities of Lokiarchaeota 

      Lydvo, Steffen (Master thesis, 2015-06-01)
      Marine subsurface sediments are large and ecologically significant microbial habitats. The archaeal phylum Lokiarchaeota is a group of organisms commonly found in these sediments. Their metabolism is unknown, but based on ...
    • Investigation of the p–Σ0 interaction via femtoscopy in pp collisions 

      Acharya, Shreyasi; Adamová, Dagmar; Adhya, Souvik Priyam; Adler, Alexander; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Eikeland, Viljar Nilsen; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Lofnes, Ingrid Mckibben; Nystrand, Joakim; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Arsene, Ionut Cristian; Dordic, Olja; Lardeux, Antoine Xavier; Mahmood, Sohail Musa; Malik, Qasim Waheed; Neagu, Alexandra; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Langøy, Rune; Lien, Jørgen André; Ahmad, Shafiq F.; Ahn, Sang Un; Akindinov, Alexander; Al-Turany, Mohammed; Alam, Sk Noor; De Albuquerque, Danilo Silva; Aleksandrov, Dimitry; ALICE, Collaboration (Journal article; Peer reviewed, 2020-06-10)
      This Letter presents the first direct investigation of the p–Σ0 interaction, using the femtoscopy technique in high-multiplicity pp collisions at √s = 13 TeV measured by the ALICE detector. The Σ0 is reconstructed via the ...
    • Investigations of abrupt climate change offshore east Greenland continental margin during marine isotope stages 3 and 5 

      Olsen, Ida Synnøve Folkestad (Master thesis, 2016-06-01)
      Paleoclimatic records obtained from western Nordic Seas core GS15-198-38CC (70°N, 17°W) exhibit fluctuating climatic patterns of millennial time scales. Here, foraminifera isotope records used to reconstruct sea surface ...
    • Investigations of anisotropic collectivity using multi-particle correlations in pp, p-Pb and Pb-Pb collisions 

      Acharya, Shreyasi; Adam, Jaroslav; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, G; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Ahmad, N; Ahn, SU; Aiola, Salvatore; Akindinov, Alexander; Alam, Sk Noor; Alba, José Luis Bazo; Aleksandrov, Dimitry; Allesandro, B.; Alme, Johan; Altenkaemper, Lucas; Arsene, Ionut Christian; Bätzing, Paul Christoph; Djuvsland, Øystein; Dordic, Olja; Helstrup, Håvard; Hetland, Kristin Fanebust; Kileng, Bjarte; Langøy, Rune; Lardeux, Antoine Xavier; Lien, Jørgen André; Lindal, Svein; Lønne, Per-Ivar; Mahmood, Sohail Musa; Milosevic, Jovan; Nesbø, Simon Voigt; Nystrand, Joakim; Rehman, Attiq Ur; Richter, Matthias Rudolph; Røed, Ketil; Røhrich, Dieter; Skaali, Toralf Bernhard; Tambave, Ganesh Jagannath; Tveter, Trine Spedstad; Ullaland, Kjetil; Velure, Arild; Wagner, Boris; Wikne, Jon Christopher; Zhang, Hui; Zhao, Chengxin; Zhou, Zhuo; Zhu, Hongsheng; ALICE, Collaboration (Peer reviewed; Journal article, 2017-11)
      Two- and multi-particle azimuthal correlations have proven to be an excellent tool to probe the properties of the strongly interacting matter created in heavy-ion collisions. Recently, the results obtained for multi-particle ...
    • Investigations of anisotropic flow using multiparticle azimuthal correlations in pp, p−Pb, Xe-Xe, and Pb-Pb collisions at the LHC 

      Acharya, Shreyasi; Adamová, Dagmar; Adhya, Souvik Priyam; Adler, Clemens; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Nikita; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Grøttvik, Ola Slettevoll; Nystrand, Joakim; Rehman, Attiq ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Yang, Shiming; Yuan, Shiming; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; 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; Ahmad, Shafiq F.; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammed; ALICE, Collaboration (Peer reviewed; Journal article, 2019)
      Measurements of anisotropic flow coefficients ( v n ) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of p p at √ s = 13 TeV , p − Pb at a center-of-mass energy per ...
    • Investigations of the Kaup-Boussinesq model equations for water waves 

      Juliussen, Bjørn-Sverre Hjelle (Master thesis, 2014-06-02)
      The Kaup-Boussinesq system is a coupled system of nonlinear partial differential equations which has been derived as a model for surface waves in the context of the Boussinesq scaling, and it has also been derived for an ...
    • Investigations of the Modified Navier-Stokes Equations in One Dimension 

      Sårheim, Inga Sofie (Master thesis, 2014-06-02)
      In this thesis we have investigated the Brenner-Navier-Stoke equations in one spatial dimension. These are a modified version of the Navier-Stokes equations, where the modification relates to a mass diffusion term. This ...
    • Investigations on the External Forcings acting on the Convective Boundary Layer during the BLLAST Campaign by the CLASS Model 

      Seidl, Andrew Walter (Master thesis, 2017-06-20)
      Using both observed and modelled datasets from the 2011 Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) campaign, the influence of large-scale forcings and surface heterogeneity is investigated for ten out of ...
    • In‐Flight Observation of Positron Annihilation by ILDAS 

      Kochkin, Pavlo; Sarria, David; Skeie, Chris Alexander Kallevik; Van Deursen, Alexander P.J.; de Boer, A; Bardet, Michiel; Allasia, Cedric; Flourens, Franck; Østgaard, Nikolai (Peer reviewed; Journal article, 2018-08)
      We report a 511‐keV photon flux enhancement that was observed inside a thundercloud and is a result of positron annihilation. The observation was made with the In‐flight Lightning Damage Assessment System (ILDAS) on board ...
    • Iodine nutrition and toxicity in Atlantic cod (Gadus morhua) larvae 

      Penglase, Samuel; Harboe, Torstein; Sæle, Øystein; Helland, Synnøve; Nordgreen, Andreas Hoel; Hamre, Kristin (Peer reviewed; Journal article, 2013-02-19)
      Copepods as feed promote better growth and development in marine fish larvae than rotifers. However, unlike rotifers, copepods contain several minerals such as iodine (I), at potentially toxic levels. Iodine is an essential ...
    • Ion Behaviors in the Reconnection Diffusion Region of a Corrugated Magnetotail Current Sheet 

      Wang, Shan; Chen, Li-Jen; Bessho, Naoki; Hesse, Michael; Giles, Barbara L; Moore, Thomas E (Journal article; Peer reviewed, 2019)
      The current sheet structure and ion behaviors in a magnetotail reconnection diffusion region are investigated. The multispacecraft analysis suggests a corrugated current sheet structure, interpreted as due to a flapping ...
    • Ion transporters and osmoregulation in the kidney of teleost fishes as a function of salinity 

      Takvam, Marius; Wood, Chris M.; Kryvi, Harald; Nilsen, Tom Ole (Journal article; Peer reviewed, 2021-04-20)
      Euryhaline teleosts exhibit major changes in renal function as they move between freshwater (FW) and seawater (SW) environments, thus tolerating large fluctuations in salinity. In FW, the kidney excretes large volumes of ...
    • Ionization dynamics beyond the dipole approximation induced by the pulse envelope 

      Simonsen, Aleksander; Kjellsson, Tor; Førre, Morten; Lindroth, Eva; Selstø, Sølve (Peer reviewed; Journal article, 2016-05)
      When atoms and molecules are ionized by laser pulses of finite duration and increasingly high intensities, the validity of the much-used dipole approximation, in which the spatial dependence and magnetic component of the ...
    • The ionization dynamics of atoms and molecules exposed to short pulses 

      Sørngård, Stian Astad (Doctoral thesis; Peer reviewed, 2013-08-29)
      The electrons ejected in an ionization event initiated by an incident laser pulse carry detailed information about the structure and the correlation intrinsic to atoms and molecules. This information is essential for our ...
    • IR transmission optimisation for Cadmium Telluride 

      Engø, Sverre Magnus (Master thesis, 2022-06-01)
    • Irminger Sea deep convection injects oxygen and anthropogenic carbon to the ocean interior 

      Fröb, Friederike; Olsen, A.; Våge, K.; Moore, G.W.K; Yashayaev, I. (Peer reviewed; Journal article, 2016-10-27)
      Deep convection in the subpolar North Atlantic ventilates the ocean for atmospheric gases through the formation of deep water masses. Variability in the intensity of deep convection is believed to have caused large variations ...
    • Is a warmer Arctic a more contaminated Arctic? Atlantification of Kongsfjorden in relation to contaminant levels in seabirds 

      Stople, Torunn (Master thesis, 2022-01-31)
      The Arctic, and Svalbard in particular, is experiencing a more rapid warming compared to the global average. Such Atlantification of the Arctic may change food webs in a way that can also affect the contaminant levels in ...
    • Is chronic low back pain a risk factor for diabetes? The Nord-Trøndelag Health Study 

      Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Sørgjerd, Elin Pettersen; Åsvold, Bjørn Olav; Zwart, John-Anker (Peer reviewed; Journal article, 2018)
      Objective: The purpose of this study was to examine the risk of diabetes associated with the presence or absence of chronic low back pain, considering both cross-sectional and cohort data. Research design and methods: ...
    • Is eggshell colouration related to the sex of the embryo in the northern lapwing Vanellus vanellus? 

      Sund, Einar Sagen (Master thesis, 2019-06-21)
      This study focuses on eggshell pigmentation in the northern lapwing Vanellus vanellus, a shorebird in the plover family. The pigmentation of dark spots is attributed to the organic compound protoporphyrin, which is associated ...