Browsing Fakultet for naturvitenskap (NV) by Title
Now showing items 55-74 of 12818
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A comparative study of diploid versus triploid Atlantic salmon (Salmo salar L.). The effects of rearing temperatures (5, 10 and 15 °C) on raw material characteristics and storage quality
(Journal article; Peer reviewed, 2017)Several major market operators argue that the current level of knowledge about quality is too scant to justify a switch to a large-scale production of triploid salmon. The aim of the present study was, therefore, to elucidate ... -
A comparative study of gene correlation patterns and mean expression levels in Alzheimer's disease by network analysis
(Master thesis, 2020)Hvert tredje sekund blir én person i verden rammet av demens. Hjernecellene deres dør, hukommelsen går gradvis tapt og kjente steder blir ukjente. Det er ikke bare ødeleggende for individet selv, men påvirker også familien ... -
A comparative study of gene expression networks associated with Lyme Disease
(Master thesis, 2020)Et viktig mål for systembiology er å identifsere mekanismer som er spesifikke for en gitt biologisk kontekst. Den store økningen av tilgjengelig datasett for genuttrykk har gjort det mulig å studere sammenhengen mellom ... -
A comparative study of organic- versus conventional Atlantic salmon. II. Fillet color, carotenoid- and fatty acid composition as affected by dry salting, cold smoking and storage
(Journal article, 2016)The aim of the present study was to investigate the effect of dry salting, cold smoking and 14 days refrigerated storage at 4 °C on the stability of carotenoids, color and fatty acids in commercially reared organic Atlantic ... -
A comparative study of organic- versus conventional farmed Atlantic salmon. I. Pigment and lipid content and composition, and carotenoid stability in ice-stored fillets
(Journal article, 2016)The aim of the present study was to investigate retention of pigments and composition of fatty acids (FA) in farmed organic- and conventional Atlantic salmon fed commercial feed adapted to organic and conventional salmon ... -
A comparative study of quality and safety of Atlantic cod (Gadus morhua) fillets during cold storage, as affected by different thawing methods of pre-rigor frozen headed and gutted fish
(Journal article; Peer reviewed, 2017)BACKGROUND The catch of marine whitefish is typically seasonal, whereas the land‐based processing industry has a need for all‐year stable supply of raw materials. This challenge can be met by applying fish frozen at sea. ... -
A comparative study of the physiological responses of chronically stressed diploid and triploid Atlantic salmon (Salmo salar)
(Master thesis, 2022)Rømt oppdrettslaks (Salmo salar) regnes for å være en av de største truslene som påføres ville populasjoner av Atlantisk laks grunnet introgressiv hybridisering. Dette kan unngås ved å indusere sterilitet i oppdrettslaksen, ... -
A Comparative Study of Two Fifth Generation Cephalosporin Antibiotics Towards MRSA
(Bachelor thesis, 2021)Antibiotika resistente bakterier er et stort problem i dag og kommer til å fortsette å være et stort problem i fremtiden. Det er estimert at i 2050 kommer antibiotika resistente patogener til å drepe flere folk enn kreft. ... -
A comparison of atomized purified condensed smoke and traditionally wooden smoke in processing of cold smoked salmon (Salmo salar), in relation to quality, yield and food safety
(Master thesis, 2020)Forbrukerkrav presser matindustrien til å produsere sunnere og mindre konserverte produkter, noe som også er tilfelle for kaldrøkt laks (CSS). For CSS innebærer dette redusering av saltinnhold, men endring i røyketeknologi ... -
A Comparison of Biological Dose Estimates in Proton and Carbon Ion Therapy Based on Averaged and Full Linear Energy Transfer Spectra
(Master thesis, 2015)Radiotherapy with ions, also known as particle therapy, is increasing rapidly. Shifting from photons to protons and carbons is not only a great technological transition, but also a shift in physics and in radiobiology. ... -
A comparison of Gravity Wave Parameters derived from the Analysis of a Three-Field Photometer with Imagers
(Master thesis, 2015)A method for preprocessing and analysing a few select fields in airglow intensity images from an all-sky imager was developed and utilized. Waves detected with a three-field analysis were compared with those waves ... -
A comparison of growth and timing of outward autumn migration between a lake run and a sea run brown trout (Salmo trutta) population.
(Master thesis, 2024)I denne studien er det undersøkt vekst- og migrasjonsmønster hos brunørret (Salmo trutta). Disse ble merket og sporet ved hjelp av akustisk telemetri i to norske elver, lokalisert på like breddegrader: én sjøvandrende ... -
A comparison of life history and biological characters between Atlantic salmon first-time and repeat spawners in two Norwegian rivers
(Master thesis, 2023)Iteroparitet er en avveiningsstrategi mellom nåværende og fremtidig reproduksjon. Risikoen for svikt i reproduksjonen er spredt over tid dersom fisken kan overleve sin første gyting og gyte igjen på et senere tidspunkt. ... -
A comparison of machine learning algorithms to investigate methylation profiles and predict type 1 diabetes
(Master thesis, 2021)Forekomsten og utbredelsen av type 1 diabetes i verden har økt de siste fire tiårene. Rakyan et al. hadde en hypotese om at noen av de ikke-genetiske faktorene skyldtes epigenetisk variasjon. Målet med denne masteroppgaven ... -
A comparison of the chemical toxicity of recycled versus pristine plastics using Daphnia magna
(Master thesis, 2024)Dersom verdens produksjon og bruk av plast fortsetter som den er i dag, vil den totale produksjonen nå 1,1 millioner tonn innen år 2050. Den enorme plastforurensningen i miljøet har i det siste fått stor politisk oppmerksomhet. ... -
A comparison of two parallel solution schemes for the advection-diffusion equation - Velocity guided random walk of paticles vs finite volume discretization on Cartesian grid
(Master thesis, 2017)In this thesis two methods for solving the diffusion-advection equation was implemented using MPI. The two methods was a velocity guided random walk of particles and solving the advection-diffusion equation on a grid. Both ... -
A Complex Interaction between Rickettsia conorii and Dickkopf-1 - Potential Role in Immune Evasion Mechanisms in Endothelial Cells
(Journal article; Peer reviewed, 2012)The pathophysiological hallmark of spotted fever group rickettsioses comprises vascular inflammation. Based on the emerging importance of the wingless (Wnt) pathways in inflammation and vascular biology, we hypothesized ... -
A composite network of conserved and tissue specific gene interactions reveals possible genetic interactions in glioma
(Journal article; Peer reviewed, 2017)Differential co-expression network analyses have recently become an important step in the investigation of cellular differentiation and dysfunctional gene-regulation in cell and tissue disease-states. The resulting networks ... -
A comprehensive evaluation of predictive performance of 33 species distribution models at species and community levels
(Journal article; Peer reviewed, 2019)A large array of species distribution model (SDM) approaches has been developed for explaining and predicting the occurrences of individual species or species assemblages. Given the wealth of existing models, it is unclear ... -
A comprehensive experimental study of five fundamental phenothiazine geometries increasing the diversity of the phenothiazine dye class for dye-sensitized solar cells
(Journal article; Peer reviewed, 2019)Phenothiazine is a versatile scaffold frequently used in both pharmaceutical and photovoltaic applications. Still, the structural diversity within the class of phenothiazine sensitizers for dye-sensitized solar cells is ...