Blar i Department of Mathematics på tittel
Viser treff 216-235 av 1096
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Dowker’s Theorem by Simplicial Sets and a Category of 0-Interleavings
(Master thesis, 2019-06-21)In this thesis we look at an alternative proof of Dowker’s theorem [4] using simplical sets. We prove the strongest version of the theorem [3], which can be applied to persistence homology in the sense that every nested ... -
Drivers of the summer-distribution of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic Seas from 2011 to 2017; a Bayesian hierarchical modelling approach
(Peer reviewed; Journal article, 2019-03)Identifying factors that are statistically correlated with the geographical distribution dynamics of a species can facilitate our understanding of causal physiological and ecological relationships. Northeast Atlantic (NEA) ... -
Dual virtual element methods for discrete fracture matrix models
(Peer reviewed; Journal article, 2019)The accurate description of fluid flow and transport in fractured porous media is of paramount importance to capture the macroscopic behavior of an oil reservoir, a geothermal system, or a CO2 sequestration site, to name ... -
Dualgraden til noen determinentelle varieteter
(Master thesis, 2008) -
Dynamic Boolean modelling reveals the influence of energy supply on bacterial efflux pump expression
(Journal article; Peer reviewed, 2022)Antimicrobial resistance (AMR) is a global health issue. One key factor contributing to AMR is the ability of bacteria to export drugs through efflux pumps, which relies on the ATP-dependent expression and interaction of ... -
Dynamic Capillary Effects in the Simulation of Flow and Transport in Porous Media: A New Linearisation Method
(Master thesis, 2014-12-25)In this thesis mathematical models with and without dynamic capillary effects are developed to model water flow and solute transport through a porous medium. The system of equations are discretised using the finite volume ... -
Dynamic Mode Decomposition and Koopman Operator (Data-Driven Modeling of Complex Dynamical Systems)
(Master thesis, 2019-06-19)Data-driven schemes are in high demand, given the growing abundance and accessibility to large amounts of measurements from historical records, numerical simulations, and experimental data. However, despite the abundance ... -
Dynamic modelling of biochemical reaction networks and sampling methods for constraint-based models
(Doctoral thesis, 2021-02-05)This dissertation is a partial fulfillment of the requirements for the degree of Doctor of Philosophy (PhD). This study is carried out at the Department of Mathematics, University of Bergen. The subject of the thesis is ... -
Dynamical modeling of pathogenic bacteria in surface drinking water
(Master thesis, 2020-10-08)Dynamisk modellering av økologiske systemer har vært et interessant verktøy for å forstå samspillet mellom arter i naturen. I denne oppgaven konstruerer vi et dynamisk system for interaksjon mellom patogene bakterier og ... -
The dynamics of trait variance in multi-species communities: Multi-species trait variance dynamics
(Journal article; Peer reviewed, 2020)In this paper, we establish the explicit connection between deterministic trait-based population-level models (in the form of partial differential equations) and species-level models (in the form of ordinary differential ... -
Early prediction of response to radiotherapy and androgen-deprivation therapy in prostate cancer by repeated functional MRI: a preclinical study
(Peer reviewed; Journal article, 2011-06-08)Background: In modern cancer medicine, morphological magnetic resonance imaging (MRI) is routinely used in diagnostics, treatment planning and assessment of therapeutic efficacy. During the past decade, functional imaging ... -
Ecological and evolutionary dynamics of interconnectedness and modularity
(Peer reviewed; Journal article, 2018-01-23)In this contribution, we develop a theoretical framework for linking microprocesses (i.e., population dynamics and evolution through natural selection) with macrophenomena (such as interconnectedness and modularity within ... -
The Effect of Environmental Stressors on Tinnitus: A Prospective Longitudinal Study on the Impact of the COVID-19 Pandemic
(Journal article; Peer reviewed, 2020-08)Tinnitus, the perception of sound in the absence of a corresponding sound, and the distress caused by it, is rarely a static phenomenon. It rather fluctuates over time depending on endogenous and exogenous factors. The ... -
Effect of Erroneous Representation of Location and Orientation of EM Receivers for Monitoring of Submarine Petroleum Reservoirs
(Master thesis, 2009-06-02)The receivers in electromagnetic monitoring should optimally be placed exactly in the same location during every single acquisition. However, for technological and economical reasons, the receivers are currently brought ... -
Effective permeability of deformation bands in fault damage zones – Can deformation bands reduce the risk of fault leakage?
(SINTEF Proceedings;7, Chapter, 2021)Faults are major geological structures that can dominate the flow paths in subsurface reservoirs by, e.g., connecting otherwise unconnected layers. In CO2 storage sites where the faults act as the main structural trap, the ... -
Effective Preconditioners for Mixed-Dimensional Scalar Elliptic Problems
(Journal article; Peer reviewed, 2023)Discretization of flow in fractured porous media commonly lead to large systems of linear equations that require dedicated solvers. In this work, we develop an efficient linear solver and its practical implementation for ... -
Effects of a parent-administered exercise program in the neonatal intensive care unit: Dose does matter-a randomized controlled trial
(Journal article; Peer reviewed, 2020)Background Despite the risk of delayed motor development in infants born preterm, knowledge about interventions in the neonatal intensive care unitt (NICU) and the effects of dosing is sparse. Objective The objectives ... -
Effects of bottom drag and shelf slope steepnes on the currents along the shelf slope at Ormen Lange
(Department of Applied Mathematics report, Research report, 2001-12) -
Effects of complex neck therapy – kinesiotherapy and interspinal muscles massage – on tinnitus
(Journal article, 2023)Introduction: Past studies have shown connections between the somatosensory system (the neck and temporomandibular joint region) and the auditory system. It is therefore likely that tinnitus patients might benefit from ... -
Effects of thermally-dependent rock parameters on fracture reactivation
(Master thesis, 2019-07-09)The slip tendency is an important tool to measure fracture reactivation in thecontext of subsurface engineering applications. In this thesis, the effects of thermally-dependent rock parameters such as Young’s modulus on ...