Browsing Faculty of Mathematics and Natural Sciences by Title

Now showing items 229-248 of 9894

    • Alien species in Norway: Results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...

    • Aligning a Splice Graph to a Genomic Sequence 

      Ølberg, Øyvind (Master thesis, 2005-06-01)

    • Alignment of the ATLAS Inner Detector in Run 2 

      Aad, Georges; Abbott, Brad; Abbott, Dale C.; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Syed Haider; AbouZeid, Ossama Sherif Alexander; Abraham, Nadine L.; Abramowicz, Halina; Bjørke, Kristian; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Garonne, Vincent; Gramstad, Eirik; Heggelund, Andreas Løkken; Hellesund, Simen; Håland, Even Simonsen; Morisbak, Vanja; Oppen, Henrik; Ould-Saada, Farid; Pedersen, Maiken; Read, Alexander Lincoln; Rye, Eli Bæverfjord; Røhne, Ole Myren; Sandaker, Heidi; Vadla, Knut Oddvar Høie; Buanes, Trygve; Djuvsland, Julia Isabell; Eigen, Gerald; Fomin, Nikolai; Lee, Graham Richard; Lipniacka, Anna; Martin dit Latour, Bertrand; Stugu, Bjarne; Træet, Are Sivertsen; Abreu, Henso; Abulaiti, Yiming; Acharya, Bobby S.; Achkar, Baida; Adam, Lennart; Adam-Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Adelman, Jareed; Adersberger, Michael; Adigüzel, Aytül; Adorni, Sofia; Adye, Tim; ATLAS, Collaboration (Journal article; Peer reviewed, 2020-12-24)
      The performance of the ATLAS Inner Detector alignment has been studied using pp collision data at s√=13TeV collected by the ATLAS experiment during Run 2 (2015–2018) of the Large Hadron Collider (LHC). The goal of the ...

    • Alkyl-phenanthrenes in early life stage fish: differential toxicity in Atlantic haddock (Melanogrammus aeglefinus) embryos 

      Donald, Carey; Nakken, Charlotte L.; Sørhus, Elin; Perrichon, Prescilla; Jørgensen, Kåre Bredeli; Bjelland, Hege K.; Stølen, Christine; Kancherla, Sindhu; Mayer, Philipp; Meier, Sonnich (Journal article; Peer reviewed, 2023)
      Tricyclic polycyclic aromatic hydrocarbons (PAHs) are believed to be the primary toxic components of crude oil. Such compounds including phenanthrene are known to have direct effects on cardiac tissue, which lead to ...

    • Alkylation of TEB Acetylide Using Tosylates 

      Andreassen, Emil Kristoffer Skaug (Master thesis, 2018-12-19)
      Alkylated products of 3,3,4,4-tetraethoxybut-1-yne (TEB) where prepared from alkylation of the TEB acetylide with a selection of alkyl tosylates, obtained by tosylation of the corresponding tosylates, and alkyl iodides in ...

    • Alkylfenolers innvirkning på glyserofosfolipidmembraner og kolesterol i torskehjerne 

      Lind-Larsen, Kristin (Master thesis, 2003)
      Oljeindustrien slipper ut store mengder produsert vann, som inneholder flere potensielle giftstoffer, blant annet alkylfenoler. Det ble tidlig vist at alkylfenoler kan ha skadelig virkning, særlig på grunn av østrogenhermende ...

    • Et allmenndannende naturfag. Fagets betydning for demokratisk deltagelse 

      Kolstø, Stein Dankert (Journal article, 2006)

    • Along‐stream, seasonal, and interannual variability of the North Icelandic Irminger Current and East Icelandic Current around Iceland 

      Casanova-Masjoan, M; Perez-Hernandez, MD; Pickart, Robert S.; Valdimarsson, Héðinn; Ólafsdóttir, SR; Macrander, Andreas; Grisolía-Santos, D; Torres, Daniel J.; Jónsson, Steingrímur; Våge, Kjetil; Lin, Peigen; Hernández-Guerra, A (Journal article; Peer reviewed, 2020)
      Data from repeat hydrographic surveys over the 25-year period 1993 to 2017, together with satellite altimetry data, are used to quantify the temporal and spatial variability of the North Icelandic Irminger Current (NIIC), ...

    • Alps to Apennines zircon roller coaster along the Adria microplate margin 

      Jacobs, Joachim; Paoli, Gabriele; Rocchi, Sergio; Ksienzyk, Anna Katharina; Sirevaag, Hallgeir; Elburg, Marlina (Peer reviewed; Journal article, 2018-02-09)
      We have traced the particle path of high-pressure metasedimentary rocks on Elba Island, Northern Apennines, with the help of a U-Pb-Hf detrital zircon study. One quarter of the analysed zircons are surprisingly young, ...

    • Alps to Apennines zircon roller coaster along the Adria microplate margin 

      Jacobs, Joachim; Paoli, Gabriele; Rocchi, Sergio; Ksienzyk, Anna Katharina; Sirevaag, Hallgeir; Elburg, Marlina (Peer reviewed; Journal article, 2018-02-09)
      We have traced the particle path of high-pressure metasedimentary rocks on Elba Island, Northern Apennines, with the help of a U-Pb-Hf detrital zircon study. One quarter of the analysed zircons are surprisingly young, ...

    • Alterations in auditory brain stem response distinguish occasional and constant tinnitus 

      Edvall, Niklas K.; Mehraei, Golbarg; Claeson, Martin; Lazar, Andra; Bulla, Jan; Leineweber, Constanze; Uhlén, Inger; Canlon, Barbara; Cederroth, Christopher R. (Journal article; Peer reviewed, 2022)
      BACKGROUND. The heterogeneity of tinnitus is thought to underlie the lack of objective diagnostic measures. METHODS. Longitudinal data from 20,349 participants of the Swedish Longitudinal Occupational Survey of Health ...

    • Altered collective mitochondrial dynamics in the Arabidopsis msh1 mutant compromising organelle DNA maintenance 

      Chustecki, Joanna M.; Etherington, Ross D; Gibbs, Daniel J.; Johnston, Iain George (Journal article; Peer reviewed, 2022)
      Mitochondria form highly dynamic populations in the cells of plants (and almost all eukaryotes). The characteristics and benefits of this collective behaviour, and how it is influenced by nuclear features, remain to be ...

    • Altering the wetting properties of FEP films by nano-structuring the surface using reactive ion etching 

      Frøvik, Nikolai (Master thesis, 2017-10-18)
      Renewable energy sources has become a large field of research, and in the recent years, methods to harvest energy from rain drops have been developed. This technology is based on rain drops rolling or sliding on a polymer ...

    • Alternative gauge for the description of the light-matter interaction in a relativistic framework 

      Selstø, Sølve; Kjellsson, Tor; Lindroth, Eva; Simonsen, Aleksander; Førre, Morten (Peer reviewed; Journal article, 2017-08)
      We present a generalized velocity gauge form of the relativistic laser-matter interaction. In comparison with the (equivalent) regular minimal coupling description, this form of light-matter interaction results in superior ...

    • Alternative læringsmåter for derivasjon i R1 - en komparativ analyse 

      Aksdal, Tom (Master thesis, 2016-06-01)
      I denne masteroppgaven har jeg studert elever som har arbeidet med derivasjon i matematikk R1. Formålet har vært å sammenligne to alternative læringsmåter med tradisjonell oppgaveregning, med tanke på læringsutbytte på ...

    • An altitude and distance correction to the initial fluence distribution of TGFs 

      Nisi, Ragnhild Schrøder; Østgaard, Nikolai; Gjesteland, Thomas; Collier, Andrew B. (Peer reviewed; Journal article, 2014-10)
      The source fluence distribution of terrestrial gamma ray flashes (TGFs) has been extensively discussed in recent years, but few have considered how the TGF fluence distribution at the source, as estimated from satellite ...

    • Ambient noise levels and detection threshold in Norway 

      Demuth, Andrea; Ottemöller, Lars; Keers, Henk (Peer reviewed; Journal article, 2016-07)
      Ambient seismic noise is caused by a number of sources in specific frequency bands. The quantification of ambient noise makes it possible to evaluate station and network performance. We evaluate noise levels in Norway from ...

    • Ambient noise levels, QLg wave tomography and earthquake source parameters in Norway 

      Demuth, Andrea (Doctoral thesis, 2019-04-05)
      Norway is part of an intraplate environment and therefore experiences low to intermediate seismicity. This seismicity is a response to the stress eld in the lithosphere, which is mainly in uenced by ridge push from the ...

    • AME: A Cross-Scale Constellation of CubeSats to Explore Magnetic Reconnection in the Solar–Terrestrial Relation 

      Dai, Lei; Wang, Chi; Cai, Zhiming; Gonzalez, Walter D.; Hesse, Michael; Escoubet, Philippe; Phan, Tai D.; Vasyliunas, Vytenis; Lu, Quanming; Li, Lei; Kong, Linggao; Dunlop, Malcolm W.; Nakamura, Rumi; He, Jianshen; Fu, Huishan; Zhou, M.; Huang, Shiyong; Wang, Rongsheng; Khotyaintsev, Yuri V.; Graham, D. B.; Retinò, Alessandro; Zelenyi, Lev; Grigorenko, Elena E.; Runov, Andrei; Angelopoulos, Vassilis; Kepko, Larry; Hwang, Kyoung-Joo; Zhang, Yongcun (Journal article; Peer reviewed, 2020)
      A major subset of solar–terrestrial relations, responsible, in particular, for the driver of space weather phenomena, is the interaction between the Earth's magnetosphere and the solar wind. As one of the most important ...

    • Amino Acid Carriers of the Solute Carrier Families 7 (SLC7) and 38 (SLC38) Are Involved in Leucine Sensing in the Brain of Atlantic Salmon (Salmo salar) 

      Comesaña, Sara; Lai, Floriana; Jordal, Ann-Elise Olderbakk; Verri, Tiziano; Espe, Marit; Soengas, José L.; Rønnestad, Ivar (Journal article; Peer reviewed, 2021)
      Sensing of amino acids in fish brain, especially branched-chain amino acids (BCAA) like leucine, is involved in regulation of feed intake through different mechanisms. However, there is limited information regarding the ...