Blar i Department of Mathematics and Physics (TN-IMF) på tittel

Viser treff 146-165 av 293

    • Lattice Monte Carlo simulation and phase transitions in scalar field theories 

      Vembe, Jon (Masteroppgave/UIS-HF-IMF/2019;, Master thesis, 2019-06-15)
      The cubic anisotropy model is a simple scalar field theory with a phase transition of either first- or second order depending on the values of its parameters, with similarities to the electroweak phase transition that ...

    • Lattice study of static quark-antiquark interactions in dense quark matter 

      Astrakhantsev, Nikita Yu.; Bornyakov, Vitaly G.; Braguta, Victor V.; Ilgenfritz, Ernst-Michael; Kotov, Andrey Yuryevich; Nikolaev, Alexander A.; Rothkopf, Alexander Karl (Peer reviewed; Journal article, 2019-05)
      In this paper we study the interactions among a static quark-antiquark pair in the presence of dense two-color quark matter with lattice simulation. To this end we compute Polyakov line correlation functions and determine ...

    • Learning the nonlinear flux function of a hidden scalar conservation law from data 

      Li, Qing; Evje, Steinar (Peer reviewed; Journal article, 2023-10)
      Nonlinear conservation laws are widely used in fluid mechanics, biology, physics, and chemical engineering. However, deriving such nonlinear conservation laws is a significant and challenging problem. A possible attractive ...

    • Left-Invariant Pseudo-Riemannian Metrics on Lie Groups 

      Markestad, Styrbjørn Juhl (Masteroppgave/UIS-TN-IMF/2020;, Master thesis, 2020)
      n differential geometry and mathematical physics, there is interest in left-invariant pseudo-Riemannian metrics on Lie groups. We learn and review Lie theory, representation theory, geometric invariant theory, and differential ...

    • Lil3 dimerization and chlorophyll binding in Arabidopsis thaliana 

      Mork-Jansson, Astrid Elisabeth; Gargano, Daniela; Kmiec, Karol; Furnes, Clemens; Shevela, Dmitriy; Eichacker, Lutz (Peer reviewed; Journal article, 2015)
      The two-helix light harvesting like (Lil) protein Lil3 belongs to the family of chlorophyll binding light harvesting proteins of photosynthetic membranes. A function in tetrapyrrol synthesis and stabilization of geranylgeraniol ...

    • Lithiation of Carbon terminated silicon Carbide Surface 

      Forcham, Gana Kingsly (Masteroppgave/UIS-TN-IMF/2019;, Master thesis, 2019-06-14)
      With the aim of searching for a promising Anode material for lithium ion batteries, quantum espresso modelling of the introduction of Lithium into the carbon terminated Silicon Carbide (SiC) Surface layers with the bottom ...

    • Lithiation of Silicon Carbide. 

      Acharya, Sushil (Masteroppgave/UIS-TN-IMF/2018;, Master thesis, 2018-06-15)
      Nowadays, different material like: lithium, silicon, germanium and tin are under investigation as possible anode materials for Lithium ion batteries (LIBs.) The function of anode in LIB is to accommodate the lithium ion ...

    • Log-density gradient covariance and automatic metric tensors for Riemann manifold Monte Carlo methods 

      Kleppe, Tore Selland (Peer reviewed; Journal article, 2023)
      A metric tensor for Riemann manifold Monte Carlo particularly suited for nonlinear Bayesian hierarchical models is proposed. The metric tensor is built from symmetric positive semidefinite log-density gradient covariance ...

    • Lokal trendestimering av Covid-19-smitte ved bayesiansk analyse 

      Adrian Serigstad (Bachelor thesis, 2021)
      Dette studiet tar for seg trendmodellen for Covid-19-smitte publisert i Stavanger Aftenblad. Hensikten er å videreformidle trendmodellens bayesianske bakteppe og fremheve bayesiansk analyse som metode for estimering under ...

    • Low Z-4OHtam concentrations are associated with adverse clinical outcome among early stage premenopausal breast cancer patients treated with adjuvant tamoxifen 

      Helland, Thomas; Naume, Bjørn; Hustad, Steinar; Bifulco, Ersilia; Kvaløy, Jan Terje; Sætersdal, Anna Barbro; Synnestvedt, Marit; Lende, Tone Hoel; Gilje, Bjørnar; Mjaaland, Ingvil; Weyde, Kjetil; Blix, Egil Støre; Wiedswang, Gro; Borgen, Elin; Hertz, Daniel Louis; Janssen, Emiel; Mellgren, Gunnar; Søiland, Håvard (Peer reviewed; Journal article, 2020)
      Low steady‐state levels of active tamoxifen metabolites have been associated with inferior treatment outcomes. In this retrospective analysis of 406 estrogen receptor‐positive breast cancer (BC) patients receiving adjuvant ...

    • Mapping of misconceptions concerning the carbon cycle - a quantitative survey of students in lower secondary and upper secondary school. 

      Lunde, Eirik Midbøe (Master thesis, 2022)
      This study aims to map what misconceptions students in lower secondary and upper secondary school possess concerning the carbon cycle. Data was gathered quantitatively using an anony- mous survey. Over 200 students from ...

    • Markov chain Monte Carlo 

      Nordhaug, Benjamin Hansen (Bachelor thesis, 2022)
      Denne bachelor avhandlingen går tar for seg Markovkjede og introduserer Metropolis-Hastings algoritmer. Avhandlingen går mer dypt inn i diskret tid Markovkjede. Metropolis-Hastings algoritme en type Markovkjede Monte Carlo. ...

    • Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory 

      Kurkela, Aleksi; Mazeliauskas, Aleksas; Paquet, Jean-Francois; Schlichting, Sören; Teaney, Derek (Peer reviewed; Journal article, 2019-03)
      High-energy nuclear collisions produce a nonequilibrium plasma of quarks and gluons which thermalizes and exhibits hydrodynamic flow. There are currently no practical frameworks to connect the early particle production in ...

    • Mathematical Analysis of Two Competing Cancer Cell Migration Mechanisms Driven by Interstitial Fluid Flow 

      Evje, Steinar; Winkler, Michael (Peer reviewed; Journal article, 2020-04)
      Recent experimental work has revealed that interstitial fluid flow can mobilize two types of tumor cell migration mechanisms. One is a chemotactic-driven mechanism where chemokine (chemical component) bounded to the ...

    • Mathematical and Numerical Aspects of Scalar Nonlinear Conservation Laws 

      Bhatti, Farrukh Abbas (Master thesis, 2023)
      This thesis delves deeply into numerical solutions to nonlinear conservation laws. It focuses largely on the Method of Characteristics, its application in solving conservation laws, and the implementation of solutions in ...

    • A mathematical approach to Wick rotations 

      Helleland, Christer (PhD thesis UiS;536, Doctoral thesis, 2020-09)
      In this thesis we define Wick-rotations mathematically using pseudo-Riemannian geometry, and relate Wick-rotations to real geometric invariant theory (GIT). We discover some new results concerning the existence of Wick ...

    • The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range 

      Sedda, Manuel Arca; Berry, Christopher P. L.; Jani, Karan; Amaro-Seoane, Pau; Auclair, Pierre; Baird, Jonathon; Baker, Tessa; Berti, Emanuele; Breivik, Katelyn; Caprini, Chiara; Chen, Xian; Doneva, Daniela; Ezquiaga, Jose M.; Ford, K. E. Saavik; Katz, Michael L.; Kolkowitz, Shimon; McKernan, Barry; Mueller, Guido; Nardini, Germano; Shao, Lijing; Tamanini, Nicola; Warburton, Niels; Witek, Helvi; Wong, Kaze; Zevin, Michael (Peer reviewed; Journal article, 2021-04)
      Since 2015 the gravitational-wave observations of LIGO and Virgo have transformed our understanding of compact-object binaries. In the years to come, ground-based gravitational-wave observatories such as LIGO, Virgo, and ...

    • Modelling fire occurrences in heavy goods vehicles in Norwegian road tunnels 

      Njå, Ådne (Masteroppgave/UIS-TN-IMF/2019;, Master thesis, 2019-06-15)
      This master thesis project has been organized to scrutinize current incident data on near fires and fully developed fires in Norwegian road tunnels longer than 500 meter. This length is chosen because it is assumed that ...

    • Modified Kerr and Black Hole Ringdowns 

      Ahmed, Zaryab (Master thesis, 2023)
      In the post-merger phase of a black hole binary system, the remnant object is a perturbed black hole emitting gravitational radiation in the form of Gravitational Waves (quasi-normal modes) before admitting a stable state. ...

    • Multimessenger Constraints for Ultradense Matter 

      Annala, Eemeli; Gorda, Tyler; Katerini, Evangelia; Kurkela, Eero Aleksi; Nättilä, Joonas; Paschalidis, Vasileios; Vuorinen, Aleksi (Peer reviewed; Journal article, 2022)
      Recent rapid progress in neutron-star (NS) observations offers great potential to constrain the properties of strongly interacting matter under the most extreme conditions. In order to fully exploit the current observational ...