Blar i Department of Mathematics and Natural Sciences på tittel
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Design and cost evaluation of anaerobic bioreactor for industrial waste
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-06-21)Industrial wastewater with very high Total Organic Carbon (TOC) is a potential substrate for anaerobic treatment. Continuous Flow Stirred Tank Reactor (CSTR) is the common model of reactor used to treat various kind of ... -
Destabilization and separation of drilling mud by utilizing chemicals and mechanical equipment
(Masteroppgave/UIS-TN-IMN/2014;, Master thesis, 2014-06-25)The research of this thesis was aimed to test new chemical mixtures for drilling fluid waste treatment and optimize them for different type of oil-based drilling muds. The research included two steps: pre-screening and ... -
Detection and Characterization of Circulating Tumor Cells in Early Breast Cancer
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)Background: Detection of circulating tumor cells (CTCs) has demonstrated prognostic significance in metastatic breast cancer. This is less studied in early breast cancer due to the rarity of such cells in early disease and ... -
Detection of Borrelia bacteria using real-time PCR
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06-15)Lymes disease (LD) caused by bacteria in the Borrelia genus is the most commonly known vector borne disease on the northern hemisphere. There are at least 10 human pathogenic Borrelia species known to date, five of which ... -
Detection of oxidative stress in tissue homogenate from krill exposed to oil
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-07-14)Krill are small crustacean animals, living all over the world. They are key organisms in the marine food web. The petroleum industry releases oil to the sea with the produced water and by accidental oil spill, and there ... -
Determination of porin channel activity and evolution of targeting signals in plant peroxisomes
(University of Stavanger, Norway;, Doctoral thesis, 2013)Peroxisomes are eukaryotic organelles traditionally known for their roles in fatty acid metabolism and generation and removal of hydrogen peroxide. Several new functions are being ascribed to these organelles with the help ... -
Determination of protein composition in whey fractions by molecular spectroscopy, gel electrophoresis and mass spectrometry
(Masteroppgave/UIS-TN-IMN/2015;, Master thesis, 2015-06-15)Whey is becoming an important product for the dairy industry. In the last 15 years, the characterization of whey proteins (β-lactoglobulin (β-Lg), α-lactalbumin (α-La), Bovine serum albumin (BSA), Immunoglobulin (Ig), ... -
Determination of the Effect of Constructed Wetlands on the Bioavailability of Phosphorus
(Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06): Phosphorus is the limiting nutrient in most freshwater aquatic environments. When a large amount of phosphorus enters a freshwater environment, such as a lake, this causes a rapid increases in primary production which ... -
Development of Plant Hemoglobin-Based Blood Substitute: Fed-Batch Fermentation Optimization and Stability Characterization
(Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-07)The need for alternative blood substitutes is undoubtedly very enormous. Therefore, it is important to evaluate and develop different sources of starting material for this product. Focus has been on use of hemoglobin (Hb) ... -
Dimensional reduction of the Standard Model coupled to a new singlet scalar field
(Journal article; Peer reviewed, 2017)We derive an effective dimensionally reduced theory for the Standard Model augmented by a real singlet scalar. We treat the singlet as a superheavy field and integrate it out, leaving an effective theory involving only the ... -
Discriminating the Weyl type in higher dimensions using scalar curvature invariants
(Journal article; Peer reviewed, 2011)We consider higher dimensional Lorentzian spacetimes which are currently of interest in theoretical physics. It is possible to algebraically classify any tensor in a Lorentzian spacetime of arbitrary dimensions using ... -
DNA base excision repair : mutation induction and novel functions
(University of Stavanger, Norway;, Doctoral thesis, 2015-06)DNA is susceptible to chemical modifications corrupting its cellular information processing function, necessitating correction of such modifications. Cells are formed mostly by water – giving rise to hydrolytic reactions ... -
DNA glycosylase activities for N4,5-dimethylcytosine
(Master thesis, 2017-06)Although the epigenetic DNA base 5-methylcytosine (m5C) has an important role in cellular functions, damaging chemical alterations to m5C have been little studied. For example, while much knowledge exists on erroneous ... -
Downregulation of N-terminal acetylation triggers ABA-mediated drought responses in Arabidopsis
(Journal article; Peer reviewed, 2015-07)N-terminal acetylation (NTA) catalysed by N-terminal acetyltransferases (Nats) is among the most common protein modifications in eukaryotes, but its significance is still enigmatic. Here we characterize the plant NatA ... -
DREAM (Dose-related Risk and Exposure Assessment Model) as a tool to predict biomarker responses in offshore produced water discharge situations
(Masteroppgave/UIS-TN-IMN/2009, Master thesis, 2009-11-25)Every year, approximately 200 million tones of produced water are discharged into the sea by the Norwegian oil industry. Although rapidly diluted, due to its large amount and possible long term (chronic) effects, the ... -
Drift og optimalisering av flash separatoren i en glykol reclamation enhet
(Masteroppgave/UIS-TN-IMN/2009;, Master thesis, 2011)Monoetylenglykol (MEG) benyttes ofte som inhibitor for å unngå hydrater i subsea gasstransportrør. MEG er en miljøvennlig inhibitor, som kan resirkuleres om regenerering benyttes. Regenerering av MEG involverer to trinn; ... -
Effect of bacteriostatic agents on lactic acid bacteria and specific fish spoilage bacteria in a model system
(Masteroppgave/UIS-TN-IMN/2012;, Master thesis, 2012)Lactic acid bacteria (LAB) are gram positive bacteria, which are the dominant microflora in lightly preserved fish products (LPFP) and many LAB species can spoil LPFP. To increase the shelf-life of LPFP, it is necessary ... -
Effect of low temperature on hydrocarbon biodegradation in marine environments
(PhD thesis UiS;199, Doctoral thesis, 2013-06-20)Understanding the fate of oil discharges in cold marine environments has become a key issue as oil and gas industry is expandig exploration activities into frontier regions such as the Arctic Ocean. The aim of this research ... -
Effect of pre-exposure of sulfur and iron sulfide on H2S corrosion at different temperatures
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)The study has been carried out to investigate the effect of elemental sulfur and iron sulfide on corrosion behavior of carbon steel in sour environment. It was found that both compounds could form a protective layer of ... -
Effect of precorrosion by galvanostatic anodic polarization and temperature on the formation rate of iron (ii) carbonate film
(Masteroppgave/UIS-TN-IMN/2011;, Master thesis, 2011)Corrosion on the inside walls of steel pipelines and process equipment is mostly caused by CO2 which can cause property damage on the production and the transport of oil and natural gas. In order to control corrosion of ...