Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 2361-2380 of 9887
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Effects of methane hydrates on two-phase relative permeability in sandstone: Numerical simulation of laboratory experiments
(Journal article; Peer reviewed, 2022)To identify the challenges and limitations in measuring and modelling gas relative permeability in hydrate bearing sandstone, we simulate a series of experiments. Experimental and numerical results are used to examine the ... -
Effects of motion correction, sampling rate and parametric modelling in dynamic contrast enhanced MRI of the temporomandibular joint in children affected with juvenile idiopathic arthritis
(Journal article; Peer reviewed, 2021)The temporomandibular joint (TMJ) is typically involved in 45–87% of children with Juvenile Idiopathic Arthritis (JIA). Accurate diagnosis of JIA is difficult as various clinical tests, including MRI, disagree. The purpose ... -
Effects of Multi-Shell Free Water Correction on Glioma Characterization
(Journal article; Peer reviewed, 2021)Diffusion MRI is a useful tool to investigate the microstructure of brain tumors. However, the presence of fast diffusing isotropic signals originating from non-restricted edematous fluids, within and surrounding tumors, ... -
Effects of multiple mating and male harassment on female fecundity and longevity in the seed beetle Callosobruchus maculatus.
(Master thesis, 2019-12)Polyandry is a common mating system in many species, however females may experience considerable costs related to multiple mating including male harassment, energy use and in some cases physical damage. Male harassment of ... -
Effects of near-surface thawing on elastic properties and signatures of seismic surface waves
(Master thesis, 2023-09-04)The ongoing temperature rise in the Arctic may have severe effects on large areas of today’s permanently frozen ground. Therefore, it is important to establish robust systems that can monitor permafrost changes with time. ... -
Effects of negative shear on loads for a 15 MW offshore wind turbine during low-level jet events
(Journal article; Peer reviewed, 2023)Wind turbines are more often interacting with the negative shear region of a low-level jet due to increasing turbine sizes. However, the effects of negative shear on wind turbines are not sufficiently studied, particularly ... -
Effects of nonlinear sound propagation in fisheries research
(Doctoral thesis, 2007-03-30) -
Effects of nuisance submerged vegetation on the fauna in Norwegian rivers
(Journal article; Peer reviewed, 2021)The abundance of aquatic vegetation is increasing in rivers and lakes worldwide. The aim of this study was to find how the macrophyte Juncus bulbosus Linnaeus affects salmonids and benthic macroinvertebrates in Norwegian ... -
Effects of perceived predation risk on extra-pair mating in blue tits (Cyanistes caeruleus)
(Master thesis, 2017-10-28)Trivers’ theory of sexual conflict in parental investment has laid the groundwork for immense quantities of research, especially within the avian taxa. Although male benefits of extra-pair copulation (EPC) are argued to ... -
The effects of persistent organic pollutants (POPs) on the steroidogenesis in the mouse Y1 adrenocortical cell line
(Master thesis, 2015-10-01)The endocrine system refers to glands which secrets hormones that regulates a variety of physiological processes. The adrenal cortex is part of the endocrine hypothalamus-pituitary-adrenal axis, and produces and secretes ... -
Effects of photoperiod regimes and salinity on Na+, K+-ATPase α-isoform expression in gills and kidney during smoltification in Atlantic salmon (Salmo salar) in recirculating aquaculture systems
(Master thesis, 2023-06-02)Understanding the molecular mechanisms of smoltification and seawater adaptation in Atlantic salmon (Salmo salar) is crucial for optimizing smolt production in aquaculture. This study investigated the expression patterns ... -
Effects of physical activity on schoolchildren's academic performance: The Active Smarter Kids (ASK) cluster-randomized controlled trial
(Peer reviewed; Journal article, 2016-10)Objective. To investigate the effect of a seven-month, school-based cluster-randomized controlled trial on academic performance in 10-year-old children. Methods. In total, 1129 fifth-grade children from 57 elementary schools ... -
Effects of rapid temperature changes on Atlantic salmon, Salmo salar, post-smolts
(Master thesis, 2017-06-28)Year round production of Atlantic salmon post-smolts in closed or semi-closed systems opens up for use of seawater from different depths, which will permit stocking of fish from closed containment system to the open sea ... -
Effects of reduced diameter of bag cultures on content of essential fatty acids and cell density in a continuous algal production system
(Peer reviewed; Journal article, 2011-02-16)Cell density and fatty acid (FA) content of Pavlova lutheri and Chaetoceros muelleri were analysed in a continuous algal production system (250-L bags) with reduced diameter. The cell density and FA content and composition ... -
Effects of reforestation and intensified land use on vascular plant species richness in traditionally managed hay meadows
(Peer reviewed; Journal article, 2003)In this study of 130 sites with different management we investigated whether vascular plant species richness is significantly reduced when traditionally managed hay meadows are abandoned and reforested. We also compared ... -
Effects of replacing fish meal with plant protein in diets for Atlantic cod (Gadus morhua L.)
(Doctoral thesis, 2009-09-18)In Northern Europe, interest in farming Atlantic cod Gadus morhua L. has increased steadily over the past decade stimulated by the decline in landings from fisheries, and the more predictable supply by hatchery reared ... -
Effects of salinity on hydrate stability and implications for storage of CO2 in natural gas hydrate reservoirs
(Peer reviewed; Journal article, 2009-02)The win-win situation of CO2 storage in natural gas hydrate reservoirs is attractive for several reasons in addition to the associated natural gas production. Since both pure CO2 and pure methane form structure I hydrate ... -
Effects of sample handling and cultivation bias on the specificity of bacterial communities in keratose marine sponges
(Peer reviewed; Journal article, 2014-11-18)Complex and distinct bacterial communities inhabit marine sponges and are believed to be essential to host survival, but our present-day inability to domesticate sponge symbionts in the laboratory hinders our access to the ... -
Effects of sea-ice and biogeochemical processes and storms on under-ice water fCO2 during the winter-spring transition in the high Arctic Ocean: Implications for sea-air CO2 fluxes
(Peer reviewed; Journal article, 2017-07)We performed measurements of carbon dioxide fugacity (fCO2) in the surface water under Arctic sea ice from January to June 2015 during the Norwegian young sea ICE (N-ICE2015) expedition. Over this period, the ship drifted ...