Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 1146-1165 av 9860
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Co-Exposure of Phenanthrene and the cyp-Inducer 3-Methylchrysene Leads to Altered Biotransformation and Increased Toxicity in Fish Egg and Larvae
(Journal article; Peer reviewed, 2023)Polycyclic aromatic hydrocarbons (PAHs) have frequently been suspected of governing crude oil toxicity because of similar morphological defects in fish. However, PAH concentrations are often not high enough to explain the ... -
Co-exposure to UV radiation and crude oil increases acute embryotoxicity and sublethal malformations in the early life stages of Atlantic haddock (Melanogrammus aeglefinus)
(Journal article; Peer reviewed, 2023)Crude oil causes severe abnormalities in developing fish. Photomodification of constituents in crude oil increases its toxicity several fold. We report on the effect of crude oil, in combination with ultraviolet (UV) ... -
CO-expression Analysis of RNA-sequence Data from Parkinson's Disease Patients
(Master thesis, 2020-06-26)Parkinson’s disease is known as a progressive neurological disease characterized by motor symptoms. The motor symptoms are caused by neurodegeneration that causes dysfunctionalities in molecular functions crucial for ... -
Co-infection of Atlantic salmon (Salmo salar) by Lepeophtheirus salmonis and Moritella viscosa
(Master thesis, 2019-06-20)A co-infection is defined as an infection with two or more different pathogens, where the pathogens can either have a synergistic or antagonistic effect or alternatively not affect each other at all. Lepeophtheirus salmonis ... -
Co-infection with Norwegian Salmonid Alphavirus (NSAV) and Infectious Pancreatic Necrosis Virus (IPNV) in Chinook Salmon Embryo Cells (CHSE-214).
(Master thesis, 2009-06-02)Infectious pancreatic disease (IPN) and pancreas disease (PD) of salmon are viral diseases caused by Infectious Pancreatic Necrosis Virus (IPNV) (Birnaviridae) and Salmonid Alphavirus (SAV) (Togaviridae). Both IPNV- and ... -
Co-localization of clinically relevant antibiotic- and heavy metal resistance genes on plasmids in Klebsiella pneumoniae from marine bivalves
(Journal article; Peer reviewed, 2023)Klebsiella pneumoniae is an opportunistic pathogen frequently associated with antibiotic resistance and present in a wide range of environments, including marine habitats. However, little is known about the development, ... -
Co-occurrence of contaminants in marine fish from the North East Atlantic Ocean: Implications for human risk assessment
(Journal article; Peer reviewed, 2021)Marine fish from the North East Atlantic Ocean (NEAO) are nutrient rich and considered a valuable economic resource. However, marine fish are also a major dietary source of several contaminants, including persistent organic ... -
Co-operative learning in undergraduate mathematics and science education: A scoping review
(Journal article; Peer reviewed, 2022)To cope with an unpredictable future, higher education in mathematics and science (MS) needs to educate a knowledgeable and skilled workforce. Co-operative learning (CL) is a teaching method associated with increased ... -
CO2 Foam Dynamics During CO2 Enhanced Oil Recovery and CO2 Storage
(Doctoral thesis, 2023-10-09)Den stadig voksende befolkningen, økende velstand og økonomisk vekst fører til økende etterspørsel etter energi. Forbrenning av fossile brensler står for 80% av den globale energi produksjonen, noe som gjør det til en ... -
CO2 Foam Monitoring using Pressure and Resistivity Measurements : A Scientific Approach to Validating CO2 Foam Pilots
(Doctoral thesis, 2023-11-15)Denne doktorgradsstudien fokuserer på bruk av trykk- og resistivitetsmålinger for å overvåke effektiviteten av skum som et CO2-mobilitetskontrollmiddel i oljeproduserende reservoarer. Ideen om å bruke resistivitetsmåling ... -
CO2 Foam Stabilization with Nanoparticles and EOR in Fractured Carbonate Systems
(Master thesis, 2015-06-18)This thesis is a part of an ongoing study of CO2 foam mobility control in the Reservoir Physics group at the Department of Physics and Technology (IFT) at the University of Bergen. The goal of this thesis was to evaluate ... -
CO2 Foam Using non-ionic Surfactants : For Increased Storage Capacity and Oil Recovery
(Doctoral thesis, 2020-12-18)Large-scale carbon capture and storage is needed to achieve the target set forward by the Paris agreement; to limit global warming to 1.5 °C. The primary obstacle for implementing large-scale carbon capture and storage is ... -
CO2 Injection in Hydrate Bearing Sandstone with Excess Water
(Master thesis, 2013-05-31)It has previously been shown that methane can be produced from gas hydrates by exposing it to carbon dioxide. Since CO2 is the preferred hydrate former below 10 °C it will spontaneously replace CH4 as the guest molecule ... -
CO2 injeksjon for økt oljeutvinning i kalk
(Master thesis, 2013-05-31)Denne masteroppgaven studerer CO2 injeksjon for økt oljeutvinning i kalkstein, og hvordan parametere som sprekker, initielt vann og mobilitetskontroll påvirker oljeproduksjon. Det ble gjennomført 15 eksperimenter med ... -
CO2 mobility reduction using foam stabilized by CO2- and water-soluble surfactants
(Journal article; Peer reviewed, 2021)Foam can reduce CO2 mobility to improve the sweep efficiency during injection into subsurface geological formations for CO2 storage and enhanced oil recovery. However, CO2 foams are thermodynamically unstable, so they must ... -
Co2 trapping in sloping aquafiers: High resolution numerical simulations
(Chapter, 2010) -
CO2-Foams for Enhanced Oil Recovery and CO2 Storage
(Doctoral thesis, 2019-03-01)Human prosperity, economic growth and energy supply have shown a strong positive correlation from the start of the industrial revolution until the present. During the 20th century, cheap and reliable energy from fossil ... -
CO2-injeksjon i Utsiraformasjonen - et studie av CO2/vann-kontakten og temperaturavhengige parametere
(Master thesis, 2012-06-01)Since the start-up in 1996 over 15 Mt CO2 have been injected in to the geological formation Utsira at the commercial CO2 storage project Sleipner. The propagation of CO2 in the reservoir has been monitored by time-lapse ... -
Coastal heathland vegetation is surprisingly resistant to experimental drought across successional stages and latitude
(Journal article; Peer reviewed, 2021)In the last decade, several major dwarf-shrub dieback events have occurred in northern European coastal heathlands. These dieback events occur after extended periods with sub-zero temperatures under snow-free conditions ... -
Coastal ocean fronts and eddies imaged with ERS 1 synthetic aperture radar
(Peer reviewed; Journal article, 1996-03-15)ERS 1 C band synthetic aperture radar (SAR) data were collected during the Norwegian Continental Shelf Experiment (NORCSEX) both in November 1991 during the ERS 1 commissioning phase and at different seasons in 1992 and ...