Now showing items 737-756 of 931

    • S100A4 mRNA-protein relationship uncovered by measurement noise reduction 

      Athanasiou, Angelos-Theodoros; Nussbaumer, T; Kummer, Stefan; Hofer, Martin; Johnston, Iain; Staltner, Moritz; Allmer, Daniela M.; Scott, Milcah C.; Vogl, Claus; Fenger, Joelle M.; Modiano, Jaime F.; Walter, Ingrid; Steinborn, Ralf (Journal article; Peer reviewed, 2020)
      Intrinsic biological fluctuation and/or measurement error can obscure the association of gene expression patterns between RNA and protein levels. Appropriate normalization of reverse-transcription quantitative PCR (RT-qPCR) ...
    • Sammenhenger mellom koder, matroider, grafer og simplisielle komplekser 

      Heiseldal, Bård (Master thesis, 2008)
      Denne masteroppgaven handler hovedsakelig om å studere sammenhenger mellom ulike em- ner innen algebra og kombinatorikk. De matematiske konseptene som studeres, er lineære koder, matroider, grafer og simplisielle komplekser, ...
    • Sampling error distribution for the ensemble Kalman filter update step 

      Kovalenko, Andrey; Mannseth, Trond; Nævdal, Geir (Peer reviewed; Journal article, 2012)
      In recent years, data assimilation techniques have been applied to an increasingly wider specter of problems. Monte Carlo variants of the Kalman filter, in particular, the ensemble Kalman filter (EnKF), have gained significant ...
    • Scene Reconstruction Using Level Sets and Graph Cuts 

      Knudsen, Ørjan (Master thesis, 2009-07-17)
    • Screening for Circulating Inflammatory Proteins Does Not Reveal Plasma Biomarkers of Constant Tinnitus 

      Cederroth, Christopher R.; Hong, Mun-Gwan; Freydin, Maxim B.; Edvall, Niklas K.; Trpchevska, Natalia; Jarach, Carlotta; Schlee, Winfried; Schwenk, Jochen M.; Lopez-Escamez, Jose-Antonio; Gallus, Silvano; Canlon, Barbara; Bulla, Jan; Williams, Frances M. K. (Journal article; Peer reviewed, 2023)
      Background and Objective Tinnitus would benefit from an objective biomarker. The goal of this study is to identify plasma biomarkers of constant and chronic tinnitus among selected circulating inflammatory proteins. ...
    • Scroll codes over curves of higher genus 

      Johnsen, Trygve; Rasmussen, Nils Henry (Peer reviewed; Journal article, 2010)
      We construct linear codes from scrolls over curves of high genus and study the higher support weights di of these codes. We embed the scroll into projective space Pk-1 and calculate bounds for the di by considering the ...
    • Segmentation of data traces with applications to dipmeter oil well measurements 

      Karlsen, Hans; Tjøstheim, Dag (Statistical report no. 18, Research report, 1988-02)
    • Selection for biparental inheritance of mitochondria under hybridization and mitonuclear fitness interactions 

      Allison, Tom M.; Radzvilavicius, Arunas; Dowling, Damian K. (Journal article; Peer reviewed, 2021)
      Uniparental inheritance (UPI) of mitochondria predominates over biparental inheritance (BPI) in most eukaryotes. However, examples of BPI of mitochondria, or paternal leakage, are becoming increasingly prevalent. Most ...
    • Semi-conditional variational auto-encoder for flow reconstruction and uncertainty quantification from limited observations 

      Gundersen, Kristian; Oleynik, Anna; Blaser, Nello; Alendal, Guttorm (Journal article; Peer reviewed, 2021)
      We present a new data-driven model to reconstruct nonlinear flow from spatially sparse observations. The proposed model is a version of a Conditional Variational Auto-Encoder (CVAE), which allows for probabilistic ...
    • Semiparametric model selection for copulas 

      Jordanger, Lars Arne (Master thesis, 2013-06-03)
      This thesis will consider the performance of the cross-validation copula information criterion, xv-CIC, in the realm of finite samples. The theory leading to the xv-CIC will be outlined, and an analysis will be conducted ...
    • Sequential Data Assimilation in High Dimensional Nonlinear Systems 

      Stordal, Andreas Størksen (Doctoral thesis, 2011-10-21)
      Since its introduction in 1994, the ensemble Kalman filter (EnKF) has gained a lot of attention as a tool for sequential data assimilation in many scientific areas. Due to its computationally fast and easy to implement ...
    • Sequential Monte Carlo Methods for Bayesian Filtering 

      Stordal, Andreas Størksen (Master thesis, 2008)
    • Sequential multilevel assimilation of inverted seismic data 

      Nezhadali, Mohammad; Bhakta, Tuhin; Fossum, Kristian; Mannseth, Trond (Journal article; Peer reviewed, 2023)
      We consider estimation of absolute permeability from inverted seismic data. Large amounts of simultaneous data, such as inverted seismic data, enhance the negative effects of Monte Carlo errors in ensemble-based Data ...
    • Sequestration of Carbon in Saline Aquifers Mathematical and Numerical Analysis 

      Nordbotten, Jan Martin (Doctoral thesis, 2004-04-30)
      The work in this thesis focuses equally on two main topics. The first of these subjects deals with development of criteria for monotonicity of con- trol volume methods. These methods are important and frequently used for ...
    • Severi varieties on blow-ups of the symmetric square of an elliptic curve 

      Ciliberto, Ciro; Dedieu, Thomas; Galati, Concettina; Knutsen, Andreas Leopold (Journal article; Peer reviewed, 2023)
      We prove that certain Severi varieties of nodal curves of positive genus on general blow-ups of the twofold symmetric product of a general elliptic curve are nonempty and smooth of the expected dimension. This result, ...
    • Sexual dimorphism in the familial aggregation of tinnitus 

      Trpchevska, Natalia; Bulla, Jan; Prada Hellberg, Matilda; Edvall, Niklas K.; Lazar, Andra; Mehraei, Golbarg; Uhlen, Inger; Schlee, Winfried; Canlon, Barbara; Gallus, Silvano; Lopez-Escamez, Jose Antonio; Cederroth, Christopher R (Journal article; Peer reviewed, 2020-11)
      Twin and adoption studies point towards a genetic contribution to tinnitus; however, how the genetic risk applies to different forms of tinnitus is poorly understood. Here, we perform a familial aggregation study and ...
    • Ship wave patterns on floating ice sheets 

      Johnsen, Kristoffer; Kalisch, Henrik; Părău, Emilian I. (Journal article; Peer reviewed, 2022)
      This paper aims to explore the response of a floating icesheet to a load moving in a curved path. We investigate the effect of turning on the wave patterns and strain distribution, and explore scenarios where turning ...
    • The Sibling Distribution for Multivariate Life Time Data 

      Helgøy, Ingvild Margrethe; Skaug, Hans Julius (Journal article; Peer reviewed, 2022)
      A flexible class of multivariate distributions for continuous lifetimes is proposed. The distribution is defined in terms of the age-at-death of m siblings. The expression for the joint density is derived using classical ...
    • Sigma coordinate pressure gradient errors and the basin problem 

      Ness, Borghild (Master thesis, 2010-04-15)
      This work will focus on how the internal pressure gradient errors affect the numerical instability in idealised ocean basins. The nature of the errors will be investigated and discussed. First, in Chapter 1, the ocean model ...
    • A simple wavelet-based test for serial correlation in panel data models 

      Li, Yushu; Andersson, Fredrik (Journal article; Peer reviewed, 2021)
      Hong and Kao (2004) proposed a class of general applicable wavelet-based tests for serial correlation of unknown form in the residuals from a panel regression model. The tests can be applied to both static and dynamic panel ...