Blar i Department of Mathematics and Natural Sciences på tittel
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Molecular characterization of extended-spectrum beta lactamase producing Klebsiella pneumoniae from the Stavanger region between 2003 and 2012
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06-12)Klebsiella pneumoniae is a Gram-negative rod in the Enterobacteriaceae family, known to cause both community- and hospital-acquired infections, especially in immunocompromised patients. In the hospital setting, K. pneumoniae ... -
Molecular detection of tumor cells in regional lymph nodes and blood from patients undergoing surgery for non-small cell lung cancer (NSCLC)
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)The spread of metastases to regional lymph nodes in patients undergoing surgery for non-small cell lung cancer (NSCLC) is routinely detected by histopathological examinations of tissue sections from retrieved regional lymph ... -
Monitoring of sensory quality of milk by spectroscopic techniques
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06)The combined use of spectroscopic analysis and chemometric tools has wide application in evaluating and monitoring the product sensory qualities. The main intention of the work was to better understand the use of a ... -
Monitoring sediment bound cadmium in sømme bay, Hafrsfjord, Norway
(Masteroppgave/UIS-TN-IMN/2010;, Master thesis, 2010)Cadmium is considered to be a very toxic heavy metal for organisms at all levels of organisation. Therefore, careful analysis is made in Sømme bay, Hafrsfjord as this area is a very important marine wetland habitat, ... -
A multiple-source air quality control model achieving a standard, defined by a vector-valued function
(Conference object, 2009-07)Earlier papers by Gustafson, Kortanek, Sweigart and others describe models for controlling air pollution, consisting of chemically inert pollutants like sulphur dioxide. It was assumed that the concentration contributions ... -
Municipal wastewater treatment using salsnes filter and hollow fiber membrane bioreactor (HMFB)
(Masteroppgave/UIS-TN-IMN/2014;, Master thesis, 2014-07-04)This study investigated the performance of Salsnes Filter (SF) as a primary treatment prior to hollow fiber membrane bioreactor (HFMB) for nitrogen removal. The objective was to determine whether influent particle size ... -
Nanostructured titanium dioxide: fate in the aquatic environment and effects on the marine mussel mytilus edulis
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)The rapid development of nanotechnology and the corresponding increase in the use of nanoparticles in commercial products have led to concerns about their health risks and environmental impact. As the aquatic systems act ... -
Natural peptides with antioxidant activity from Atlantic cod and Atlantic salmon residual material
(Journal article; Peer reviewed, 2016-03)Summary. Water-soluble peptides/proteins with molecular weight below 10 kDa were isolated from residual material of cod (liver, skin, and cod mix i.e. skin, frames, and viscera), and salmon (skin, and salmon mix i.e. skin, ... -
Negative feedback loops leading to nitrate homeostasis and oscillatory nitrate assimilation in plants and fungi.
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)Nitrate is an important nutrient for plants and fungi. For plants it has been shown that cytosolic nitrate levels are under homeostatic control. Here we describe two networks that can obtain robust, i.e. perturbation ... -
New Microwave Technology for the Treatment of Drill Cuttings
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017)The focus of this thesis was to investigate the limitations of the new microwave susceptor technology. The technology offers promising opportunities in the treatment of oil contaminated drill cuttings to meet OSPAR and oil ... -
Note on the invariant classification of vacuum type D spacetimes
(Journal article; Peer reviewed, 2009-12)We illustrate the fact that the class of vacuum type D spacetimes which are I-non-degenerate are invariantly classified by their scalar polynomial curvature invariants. -
On computational linear semi-infinite programming
(Peer reviewed; Journal article, 2008-12) -
On high-order perturbative calculations at finite density
(Journal article; Peer reviewed, 2017-02)We discuss the prospects of performing high-order perturbative calculations in systems characterized by a vanishing temperature but finite density. In particular, we show that the determination of generic Feynman integrals ... -
On the algebraic classification of pseudo-Riemannian spaces
(Journal article; Peer reviewed, 2011-12)We consider arbitrary-dimensional pseudo-Riemannian spaces of signature (k, k + m). We introduce a boost-weight decomposition and define a number of algebraic properties (e.g. the Si- and N-properties) and present a ... -
On the circadian organization of nitrogen and sulphur metabolism in Neurospora crassa
(PhD Thesis UiS;157, Doctoral thesis, 2012-04)The purpose of this thesis was to study the circadian organization of the nitrogen and sulphur metabolism in the filamentous fungi Neurospora crassa. Neurospora is an important model organism used in genetics and circadian ... -
On-shell parameter fixing in the quark-meson model
(Journal article; Peer reviewed, 2017-02)The quark-meson model is often used as an effective low-energy model for QCD to study the chiral transition at finite temperature T and baryon chemical potential μB. The parameters in the quark-meson model can be found by ... -
Optimization of acid catalyzed transesterification of jatropha and rapeseed oil with 1-butanol
(Peer reviewed; Journal article, 2014-08)The acid catalyzed transesterification of rapeseed and jatropha oil with 1-butanol was studied by varying temperature, reaction time, butanol/triglyceride ratio and the amount of sulfuric acid. A full factorial design ... -
Optimization of chemical and mechanical disintegration process of drilling fluids.
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06)Drilling fluids are essential to conduct any drilling process. The amount of oil-based mud used daily is significant. Additives present in an oil-based mud ensure both unique properties and require proper waste treatment. ... -
Optimization of Wastewater Treatment Plant, SAR Treatment Tananger
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)The focus of this thesis is optimization of the wastewater treatment plant, SART owned by SAR AS. Based on an evaluation of the present treatment condition, capacity and limitations, performance of the plant has been ... -
Organic flow assurance, pour point depressant development through experimental design
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012-07-03)Flow assurance is of great importance in the oil and gas industry, where the main objective is to provide and secure the transport of the well stream fluid from the reservoir to the process facilities. The main challenges ...