• 2-Deoxy-D-glucose couples mitochondrial DNA replication with mitochondrial fitness and promotes the selection of wild-type over mutant mitochondrial DNA 

      Pantic, Boris; Ives, Daniel; Mennuni, Mara; Perez-Rodriguez, Diego; Fernandez-Pelayo, Uxoa; Lopez de Arbina, Amaia; Muñoz-Oreja, Mikel; Villar-Fernandez, Marina; Dang, Thanh-mai Julie; Vergani, Lodovica; Johnston, Iain George; Pitceathly, Robert D. S.; McFarland, Robert; Hanna, Michael G.; Taylor, Robert W.; Holt, Ian J.; Spinazzola, Antonella (Journal article; Peer reviewed, 2021)
      Pathological variants of human mitochondrial DNA (mtDNA) typically co-exist with wild-type molecules, but the factors driving the selection of each are not understood. Because mitochondrial fitness does not favour the ...
    • A 3D computational study of effective medium methods applied to fractured media 

      Sævik, Pål Næverlid; Berre, Inga; Jakobsen, Morten; Lien, Martha (Peer reviewed; Journal article, 2013-10)
      This work evaluates and improves upon existing effective medium methods for permeability upscaling in fractured media. Specifically, we are concerned with the asymmetric self-consistent, symmetric self-consistent, and ...
    • A 3D-1D coupled blood flow and oxygen transport model to generate microvascular networks 

      Köppl, Tobias; Vidotto, Ettore; Wohlmuth, Barbara (Journal article; Peer reviewed, 2020)
      In this work, we introduce an algorithmic approach to generate microvascular networks starting from larger vessels that can be reconstructed without noticeable segmentation errors. Contrary to larger vessels, the reconstruction ...
    • 4D seismic history matching: Assessing the use of a dictionary learning based sparse representation method 

      Soares, Ricardo; Luo, Xiaodong; Evensen, Geir; Bhakta, Tuhin (Journal article; Peer reviewed, 2020-12)
      It is possible to improve oil-reservoir simulation models by conditioning them on 4D seismic data. Computational issues may arise related to both storage and CPU time due to the size of the 4D seismic dataset. An approach ...
    • An accelerated staggered scheme for variational phase-field models of brittle fracture 

      Storvik, Erlend; Both, Jakub Wiktor; Sargado, Juan Michael Uy Villanueva; Nordbotten, Jan Martin; Radu, Florin Adrian (Journal article; Peer reviewed, 2021)
      There is currently an increasing interest in developing efficient solvers for variational phase-field models of brittle fracture. The governing equations for this problem originate from a constrained minimization of a ...
    • Active and integrated management of water resources throughout CO2 capture and sequestration operations 

      Court, Benjamin; Celia, Michael A.; Nordbotten, Jan Martin; Elliot, Thomas R. (Peer reviewed; Journal article, 2011)
      Most projected climate change mitigation strategies will require a significant expansion of CO2 Capture and Sequestration (CCS) in the next two decades. Four major categories of challenges are being actively researched: ...
    • Adaptive asynchronous time-stepping, stopping criteria, and a posteriori error estimates for fixed-stress iterative schemes for coupled poromechanics problems 

      Ahmed, Elyes; Nordbotten, Jan Martin; Radu, Florin Adrian (Journal article; Peer reviewed, 2020)
      In this paper we develop adaptive iterative coupling schemes for the Biot system modeling coupled poromechanics problems. We particularly consider the space–time formulation of the fixed-stress iterative scheme, in which ...
    • Admissibility conditions for Riemann data in shallow water theory 

      Paulsen, Martin Oen; Kalisch, Henrik (Journal article; Peer reviewed, 2020)
      Consideration is given to the shallow-water equations, a hyperbolic system modeling the propagation of long waves at the surface of an incompressible inviscible fluid of constant depth. It is well known that the solution ...
    • Analysis of Control Volume Heterogeneous Multiscale Methods for Single Phase Flow in Porous Media 

      Alyaev, Sergey; Keilegarden, Eirik; Nordbotten, Jan Martin (Peer reviewed; Journal article, 2014)
      The standard approximation for the flow-pressure relationship in porous media is Darcy's law that was originally derived for infiltration of water in fine homogeneous sands. Ever since there have been numerous attempts to ...
    • Analysis of multi-beam sonar echos of herring schools by means of simulation 

      Holmin, Arne Johannes (Doctoral thesis; Peer reviewed, 2013-05-31)
      The synchronized behavior of large schools of fish can be a fascinating sight and has caught the attention of researchers for decades. Schools of thousands, or even millions of fish can seemingly function as a single entity, ...
    • Analytical solutions for aquifer thermal energy storage 

      Nordbotten, Jan Martin (Peer reviewed; Journal article, 2017-02)
      The concept of aquifer thermal energy storage involves injection of water at elevated temperature, and possibly nonambient salinity, into a host aquifer. We consider axisymmetric injection, wherein both the composition and ...
    • Application of Vertically-Integrated Models with Subscale Vertical Dynamics to Field Sites for CO2 Sequestration 

      Guo, B; Bandilla, Karl W.; Keilegavlen, Eirik; Doster, Florian; Celia, Michael A. (Peer reviewed; Journal article, 2014)
      To address the engineering questions on security issues of geological carbon sequestration (GCS), a broad range of computational models with different levels of complexity have been developed - from multiphase multicomponent ...
    • Are Central Bankers Inflation Nutters? An MCMC Estimator of the Long-Memory Parameter in a State Space Model 

      Andersson, Fredrik N. G.; Li, Yushu (Journal article; Peer reviewed, 2019)
      Inflation targeting is a common monetary policy regime. Inflation targets are often flexible in the sense that the central bank allows inflation to temporarily deviate from the target to avoid causing unnecessary volatility ...
    • Assessing Model Uncertainties Through Proper Experimental Design 

      Hvidevold, Hilde Kristine; Alendal, Guttorm; Johannessen, Truls; Mannseth, Trond (Peer reviewed; Journal article, 2013)
      This paper assesses how parameter uncertainties in the model for rise velocity of CO2 droplets in the ocean cause uncertainties in their rise and dissolution in marine waters. The parameter uncertainties in the rise velocity ...
    • Assessing non-linearity in European temperature-sensitive tree-ring data 

      Ljungqvist, Fredrik Charpentier; Thejll, Peter; Björklund, Jesper; Gunnarson, Björn E.; Piermattei, Alma; Rydval, Miloš; Seftigen, Kristina; Støve, Bård; Büntgen, Ulf (Journal article; Peer reviewed, 2020-02)
      We test the application of parametric, non-parametric, and semi-parametric calibration models for reconstructing summer (June–August) temperature from a set of tree-ring width and density data on the same dendro samples ...
    • Association between body height and chronic low back pain: a follow-up in the Nord-Trøndelag Health Study 

      Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Zwart, John-Anker (Peer reviewed; Journal article, 2015-06-15)
      Objective: To study potential associations between body height and subsequent occurrence of chronic low back pain (LBP). Design: Prospective cohort study. Setting: The North-Trøndelag Health Study (HUNT). Data were ...
    • Association between Hyperacusis and Tinnitus 

      Cederroth, Christopher R; Lugo, Alessandra; Edvall, Niklas K.; Lazar, Andra; Lopez-Escamez, Jose Antonio; Bulla, Jan; Uhlen, Inger; Hoare, Darek J.; Baguley, David M.; Canlon, Barbara; Gallus, Silvano (Journal article; Peer reviewed, 2020-07)
      Many individuals with tinnitus report experiencing hyperacusis (enhanced sensitivity to sounds). However, estimates of the association between hyperacusis and tinnitus is lacking. Here, we investigate this relationship in ...
    • Associations between the number of children, age at childbirths and prevalence of chronic low back pain: the Nord-Trøndelag Health Study 

      Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Storheim, Kjersti; Zwart, John-Anker (Journal article; Peer reviewed, 2020)
      Background Associations between childbirths and subsequent risk of low back pain (LBP) have not been clarified. Changes in sex hormone levels or lumbar posture during pregnancy may have an impact on LBP later in life. The ...
    • Assuring the integrity of offshore carbon dioxide storage 

      Connelly, D.P.; Bull, J.M.; Flohr, A.; Schaap, A.; Koopmans, D.; Blackford, J.C.; White, P.R.; James, R.H.; Pearce, C.; Lichtschlag, A.; Achterberg, E.P.; de Beer, D; Roche, B.; Li, J.; Saw, K.; Alendal, Guttorm; Avlesen, Helge; Brown, R.; Borisov, S.M.; Böttner, C.; Cazenave, P.W.; Chen, B.; Dale, A.W.; Dean, M.; Dewar, M.; Esposito, M.; Gros, J.; Hanz, R.; Haeckel, M.; Hosking, B.; Huvenne, V.; Karstens, Jens; Le Bas, T.; Leighton, T.G.; Linke, P.; Loucaides, S.; Matter, J.M.; Monk, S.; Mowlem, M.C.; Oleynik, Anna; Omar, Abdirahman; Peel, K.; Provenzano, G.; Saleem, U.; Schmidt, M.; Schramm, B.; Sommer, S.; Strong, J.; Suarez, I. Falcon; Ungerboeck, B.; Widdicombe, S.; Wright, H.; Yakushev, Evgeniy (Journal article; Peer reviewed, 2022)
      Carbon capture and storage is a key mitigation strategy proposed for keeping the global temperature rise below 1.5 °C. Offshore storage can provide up to 13% of the global CO2 reduction required to achieve the Intergovernmental ...
    • Automorphism groups of pseudo H-type algebras 

      Furutani, Kenro; Markina, Irina (Journal article; Peer reviewed, 2021)
      In the present paper we determine the group of automorphisms of pseudo H-type Lie algebras, that are two step nilpotent Lie algebras closely related to the Clifford algebras Cl(Rr,s).