Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 7230-7249 of 9860
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QALM - a tool for automating quantitative analysis of LC-MS-MS/MS data
(Master thesis, 2010-05-31)The goal of bioinformatics is to support science and research in the field of biology through the application of information technology. Proteomics is a field within biology that deals with the study of proteins. This paper ... -
QCD Parton Fragmentation in Vacuum and Medium with Leading Jet Energy-Loss
(Master thesis, 2022-06-01) -
qPCR screening for Yersinia ruckeri clonal complex 1 against a background of putatively avirulent strains in Norwegian aquaculture
(Journal article; Peer reviewed, 2022)Although a number of genetically diverse Yersinia ruckeri strains are present in Norwegian aquaculture environments, most if not all outbreaks of yersiniosis in Atlantic salmon in Norway are associated with a single specific ... -
Qualification of New Methods for Measuring In-Situ Rheology of Non-Newtonian Fluids in Porous Media
(Journal article; Peer reviewed, 2020)Pressure drop (ΔP) versus volumetric injection rate (Q) data from linear core floods have typically been used to measure in situ rheology of non-Newtonian fluids in porous media. However, linear flow is characterized by ... -
Quality of the Analysis Step in EnKF
(Master thesis, 2011-06-15)In many physical applications we want to characterize the parameters of a system based on indirect observations or measurements. In a reservoir simulator setting, the goal is to simulate the production of hydrocarbons from ... -
Quantification and localization of StAR expression in Atlantic cod ovaries
(Master thesis, 2009-06-02)Steroidogenesis is essential for the production of sex steroids, and therefore also the sexual maturation process. The rate-limiting step in steroidogenesis is the movement of cholesterol from the outer to the inner ... -
Quantification and uncertainty of root growth stimulation by elevated CO2 in a mature temperate deciduous forest
(Journal article; Peer reviewed, 2023)Increasing CO2 levels are a major global challenge, and the potential mitigation of anthropogenic CO2 emissions by natural carbon sinks remains poorly understood. The uptake of elevated CO2 (eCO2) by the terrestrial ... -
Quantification of aeroacoustic noise sources from wind turbines
(Master thesis, 2022-06-01)One of the major environmental concerns regarding wind energy is an increase in noise levels, both in the atmosphere and the ocean. In this study, the generation and propagation of aeroacoustic noise from wind turbines ... -
Quantification of CH4 Hydrate Film Growth Rates in Micromodel Pores
(Journal article; Peer reviewed, 2021)In this paper, we report the growth pattern and the rate of CH4 hydrate in sandstone pores. A high-pressure, water-wet, transparent micromodel with pores resembling a sandstone rock was used to visualize CH4 hydrate formation ... -
Quantification of Cold-Ion Beams in a Magnetic Reconnection Jet
(Journal article; Peer reviewed, 2021)Cold (few eV) ions of ionospheric origin are widely observed in the lobe region of Earth’s magnetotail and can enter the ion jet region after magnetic reconnection is triggered in the magnetotail. Here, we investigate a ... -
Quantification of fucoidan isolated from Laminaria hyperborea using two different colorimetric assays and qNMR method
(Master thesis, 2022-06-01)In this thesis, a colorimetric heparin assay and quantitative NMR (qNMR) are used for fucoidan quantification and compared against an established colorimetric enzymatic L-fucose assay. -
Quantification of grazing efficacy, growth and health score of different lumpfish (Cyclopterus lumpus L.) families: possible size and gender effects
(Journal article; Peer reviewed, 2021)To investigate the possible family influence on sea lice grazing of lumpfish on Atlantic salmon, ten families of lumpfish (N = 480) with a mean (± SD) weight of 54.8 ± 9.2 g were distributed among ten sea cages (5 × 5 × 5 ... -
Quantification of iron-rich volcanogenic dust emissions and deposition over the ocean from Icelandic dust sources
(Peer reviewed; Journal article, 2014-12-02)Iceland has extremely active dust sources that result in large-scale emissions and deposition on land and at sea. The dust has a volcanogenic origin of basaltic composition with about 10% Fe content. We used two independent ... -
Quantification of Polyphenols in Seaweeds: A Case Study of Ulva intestinalis
(Peer reviewed; Journal article, 2019-12-03)In this case study, we explored quantitative 1H NMR (qNMR), HPLC-DAD, and the Folin-Ciocalteu assay (TPC) as methods of quantifying the total phenolic content of a green macroalga, Ulva intestinalis, after optimized ... -
Quantifying Dynamical Proxy Potential Through Shared Adjustment Physics in the North Atlantic
(Journal article; Peer reviewed, 2020)Oceanic quantities of interest (QoIs), for example, ocean heat content or transports, are often inaccessible to direct observation, due to the high cost of instrument deployment and logistical challenges. Therefore, ... -
Quantifying Earth System Interactions across the Mid-Pleistocene Transition
(Master thesis, 2020-12-17)Many different mechanisms have been proposed to explain the change in glacial intensity and duration that occurred during the Mid-Pleistocene Transition (MPT), 1250-700 thousand years ago. Despite a growing volume of ... -
Quantifying Errors in Observationally Based Estimates of Ocean Carbon Sink Variability
(Journal article; Peer reviewed, 2021)Reducing uncertainty in the global carbon budget requires better quantification of ocean CO2 uptake and its temporal variability. Several methodologies for reconstructing air-sea CO2 exchange from pCO2 observations indicate ... -
Quantifying recent ecological changes in remote lakes of North America and Greenland using sediment diatom assemblages
(Peer reviewed; Journal article, 2010-04-02)Background Although arctic lakes have responded sensitively to 20th-century climate change, it remains uncertain how these ecological transformations compare with alpine and montane-boreal counterparts over the same interval. ... -
Quantifying structural controls on fluid flow: Insights from carbonate-hosted fault damage zones on the Maltese Islands
(Peer reviewed; Journal article, 2017-08)Structural complexity along faults (e.g., relay zones, fault intersections and jogs) exert strong controls on fluid flow, yet few attempts have been made to quantify and visualise such relationships. This paper does that ... -
Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960-2012
(Peer reviewed; Journal article, 2019-08-07)The East Asian winter monsoon (EAWM) is greatly influenced by many factors that can be classified as anthropogenic forcing and natural forcing. Here we explore the contribution of anthropogenic influence to the change in ...