Browsing Department of Chemistry by Title
Now showing items 351-370 of 542
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Observasjoners rolle for refleksjoner og kritisk tenkning
(Master thesis, 2021-06-01)Det er økende fokus på kritisk tenkning og utforskende undervisning i den nye læreplanen (Utdanningsdirektoratet, 2019). I den anledning har jeg i denne masteroppgaven tatt utgangspunkt i problemstillingen: «Hvordan kommer ... -
Oil absorption stability of modified cellulose porous materials with super compressive strength in the complex environment
(Journal article; Peer reviewed, 2023)The occurrence of oil spills has severe damage upon both the environment and human health. Hence, the development of a green, recyclable, complex environment resistant, and efficient oil–water separation aerogel is required ... -
Oil droplet fouling and differential toxicokinetics of polycyclic aromatic hydrocarbons in embryos of Atlantic haddock and cod
(Peer reviewed; Journal article, 2017-07-05)The impact of crude oil pollution on early life stages (ELS) of fish, including larvae and embryos, has received considerable attention in recent years. Of the organic components present in crude oil, polycyclic aromatic ... -
«Okei, hvilken konklusjon kan vi trekke ut fra det?» Ein kvalitativ studie av kjenneteikn ved lærars bruk av spørsmål og innspel i utforskande gruppediskusjonar
(Master thesis, 2021-06-01)Å vere lærar i dagens klasserom inneber i langt større grad enn før å la elevane vere aktive deltakarar i eiga læring. Dette medfører at læraren i si undervisning kjem i direkte dialog med elevar, og at det læraren gjer i ... -
On the Modelling of Immiscible Viscous Fingering in Two Phase Flow in Porous Media
(Journal article; Peer reviewed, 2020)Viscous fingering in porous media is an instability which occurs when a low-viscosity injected fluid displaces a much more viscous resident fluid, under miscible or immiscible conditions. Immiscible viscous fingering is ... -
Oncolytic peptide LTX-315 induces an immune-mediated abscopal effect in a rat sarcoma model
(Peer reviewed; Journal article, 2017)LTX 315 is an oncolytic peptide with potent immunological properties. In the present study, we demonstrate that intratumoral treatment with LTX-315 resulted in a complete regression and systemic immune response in a rat ... -
One-step preparation of robust elastic plastic polyvinyl chloride sponges with a layered structure for highly efficient separation of water-in-oil emulsions
(Journal article; Peer reviewed, 2023)To address the environmental pollution and human health issues caused by oily wastewater and PVC plastic waste, a practical zero-waste solution has been developed. In this study, PVC sponges with superlipophilic and ... -
Online monitoring of an organic synthesis reaction using Raman and NIR spectroscopy
(Master thesis, 2011)The synthesis of 10-Bromo-1-Decandiol was monitored using Raman and near infrared spectroscopy. Optical fiber Raman and near infrared probes were immersed in the reaction mixture. Raman spectra were recorded every 50 second ... -
Oppgaver i kjemilærebøker i perioden 1900-2015
(Master thesis, 2015-06-01)I masteroppgaven Oppgaver i kjemilærebøker og deres betydning i undervisningen (Bodal, 2013) ble oppgaver i tre av de mest benyttede kjemilærebøkene for videregående skole i Norge i dag analysert. Analysen viste at ... -
Optical Properties of Metal Nanoparticle Arrays Created using Electron Beam Lithography for Solar Cell Application
(Master thesis, 2014-06-02)Metal nanoparticles (MNPs) are of key interest in many research fields due to their unique optical properties, which are largely dominated by the localized surface plasmon resonance (LSPR) effect. The LSPR effect gives ... -
Optical properties of metal nanoparticles investigated using polarised light.
(Master thesis, 2017-06-10)The number of applications of metal nanoparticles (MNPs) are growing, and one of their most interesting properties is the interactions between MNPs and light. Especially in the visible regime, MNPs are very good at absorbing ... -
Optimization and Comparative Analysis of a GC-FID Method using Nitrogen as Carrier gas: Investigating Dynamic Changes in Pilot-Scale Production of Nannochloropsis
(Master thesis, 2023-10-16)Redusert tilgang til pelagiske marine ressurser har ført til lavere nivåer av omega-3 fettsyrer i fôret til oppdrettslaks, noe som påvirker ernæringskvaliteten til kjøttet. Mikroalger har vist seg som en bærekraftig løsning ... -
Optimization of Analytical Method for Selenium Speciation in Fish Feed and Feed Ingredients Using a Chemometric Approach
(Master thesis, 2021-03-15)Selenium (Se) is an essential element for humans, as well as for fish, including Atlantic salmon (Salmo salar). One of the main sources of Se and other elements for farmed salmon is the diet. Due to the replacement of ... -
Optimization of Separation Efficiency in Temperature Programmed Gas Chromatography : Application of Response Surface Methodology
(Master thesis, 2014-03-14)Chromatographic efficiency can be defined as the maximal number of chromatographic peaks that can be separated within a section of a chromatogram. In isothermal gas chromatography (GC) it is usually measured by number of ... -
Optimized bisubstrate inhibitors for the actin N-terminal acetyltransferase NAA80
(Journal article; Peer reviewed, 2023)Acetylation of protein N-termini is one of the most common protein modifications in the eukaryotic cell and is catalyzed by the N-terminal acetyltransferase family of enzymes. The N-terminal acetyltransferase NAA80 is ... -
Optimized magnetic resonance spectroscopy of 2-hydroxyglutarate
(Master thesis, 2024-06-03)In recent years, non-invasive detection of 2-hydroxyglutarate (2HG) using 1H − MRS has emerged as a promising method for differentiating IDH mutant and wild-type brain tumors. However, reliable detection and quantification ... -
Optimizing the Liquid Target Production of the PET-radionuclide Ti-45 from a Natural Scandium Target
(Master thesis, 2022-09-15)The search for novel PET-nuclides is an ongoing process as some applications require decay characteristics that are different from the conventional ones. The use of novel radionuclides will fill the gap between conventional ... -
Oriented self-assembly of anisotropic layered double hydroxides (LDHs) with 2D-on-3D hierarchical structure
(Journal article; Peer reviewed, 2023)Layered double hydroxides (LDHs) have been the subject of increasing research due to their unique 2D or 3D structures and promising applications. However, achieving precise control over their morphology and architecture ... -
Origin and character of gaseous hydrocarbons in the hydrate and non-hydrate charged sediments on the Norway - Svalbard margins
(Doctoral thesis, 2011-05-26)Gas incubated in clathrate water-structures, stabilizes the hydrogen bonded substance termed gas hydrate. In the marine environment vast amount of carbon is stored as gas hydrates within the temperature and pressure zone ... -
Osmotic engine converting energy from salinity difference to a hydraulic accumulator by utilizing polyelectrolyte hydrogels
(Journal article; Peer reviewed, 2021)Efficient harvesting of the mixing energy from the salinity gradient between sea and river water remains a challenge. Recently, utilization of the swelling/shrinking properties of hydrogels has been explored as a new means ...