Browsing Faculty of Mathematics and Natural Sciences by Title
Now showing items 1120-1139 of 10317
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Chemical studies of cytotoxic natural products from toxic and edible plant sources
(Doctoral thesis, 2024-04-19)Denne doktorgradsavhandlingen fokuserer på isolering og identifikasjon av naturstoffer fra fire utvalgte planter, hvor den cytotoksiske aktiviteten til nyoppdagede og interessante naturstoffer ble testet på blodkreftceller ... -
Chemical variations in Quercus pollen as a tool for taxonomic identification: Implications for long-term ecological and biogeographical research
(Journal article; Peer reviewed, 2020)Aim Fossil pollen is an important tool for understanding biogeographical patterns in the past, but the taxonomic resolution of the fossil‐pollen record may be limited to genus or even family level. Chemical analysis of ... -
Chemical weathering on Eldsfjellet, Meland municipality, western Norway
(Master thesis, 2012-11-27)The Subject of this master thesis was to define the chemical weathering processes, create a weathering chain from sink to source and to evaluate the degree of weathering on Eldsfjellet, Meland municipality in western Norway. ... -
ChemicalDrift 1.0: an open-source Lagrangian chemical-fate and transport model for organic aquatic pollutants
(Journal article; Peer reviewed, 2023)A new model for transport and fate of chemicals in the aquatic environment is presented. The tool, named ChemicalDrift, is integrated into the open-source Lagrangian framework OpenDrift and is hereby presented for organic ... -
Chemometric Approaches for the Validation and Optimization of a LC-MS/MS Method for the Analysis of Phenanthrene Metabolites in Atlantic Haddock Embryo
(Master thesis, 2023-04-27)The release of oil and petroleum products into the environment has long been a cause for concern due to its toxic effects on marine species. In particular, the Atlantic haddock has shown enhanced sensitivity towards the ... -
A chemosynthetic weed: the tubeworm Sclerolinum contortum is a bipolar, cosmopolitan species
(Peer reviewed; Journal article, 2015-12-14)Background Sclerolinum (Annelida: Siboglinidae) is a genus of small, wiry deep-sea tubeworms that depend on an endosymbiosis with chemosynthetic bacteria for their nutrition, notable for their ability to colonise a multitude ... -
Cherenkov luminescence imaging – an aid in intraocular tumour treatment
(Master thesis, 2019-06-21) -
Chironomids, temperature and numerical models: a reply to Seppälä
(Peer reviewed; Journal article, 2001)We reply to comments by Seppälä (2001) concerning the suitability of the surface-water temperature measurements and mean July air temperature estimates used by Olanderet al. (1999) to derive quantitative chironomid-temperature ... -
Chitin synthases are critical for reproduction, molting, and digestion in the salmon louse (Lepeophtheirus salmonis)
(Journal article; Peer reviewed, 2021-01-13)Chitin synthase (CHS) is a large transmembrane enzyme that polymerizes Uridine diphosphate N-acetylglucosamine into chitin. The genomes of insects often encode two chitin synthases, CHS1 and CHS2. Their functional roles ... -
Chitin synthesis in the salmon louse Lepeophtheirus salmonis
(Doctoral thesis, 2021-08-13)The salmon louse Lepeophtheirus salmonis is a parasitic copepod that lives and feeds on Atlantic salmon (Salmo salmar). At present, this parasite is the number one threat to the Norwegian aquaculture. The density of salmons ... -
Chitinase digestion for the analysis of microplastics in chitinaceous organisms using the terrestrial isopod Oniscus asellus L. as a model organism
(Journal article; Peer reviewed, 2021)Chitinaceous organisms have been found to ingest microplastic; however, a standardised, validated, and time- and cost-efficient method for dissolving these organisms without affecting microplastic particles is still required. ... -
Chlamydial contribution to anaerobic metabolism during eukaryotic evolution
(Journal article; Peer reviewed, 2020)The origin of eukaryotes is a major open question in evolutionary biology. Multiple hypotheses posit that eukaryotes likely evolved from a syntrophic relationship between an archaeon and an alphaproteobacterium based on ... -
Chlorine as a substituent – from quantum chemistry and photoelectron spectroscopy
(Doctoral thesis, 2015-02-17)The role of chlorine as a substituent upon ionization, protonation and electrophilic addition of HCl has been studied by means of computational chemistry and photoelectron spectroscopy. Gas-phase carbon 1s photoelectron ... -
Chlorophyll a fluorescence lifetime reveals reversible UV-induced photosynthetic activity in the green algae Tetraselmis
(Peer reviewed; Journal article, 2015)The fluorescence lifetime is a very useful parameter for investigating biological materials on the molecular level as it is mostly independent of the fluorophore concentration. The green alga Tetraselmis blooms in summer, ... -
Choice of parameter for DP-based FPT algorithms: four case studies
(Doctoral thesis, 2015-09-07)This thesis studies dynamic programming algorithms and structural parameters used when solving computationally hard problems. In particular, we look at algorithms that make use of structural decompositions to overcome ... -
Cholesterol-containing lipid nanodiscs promote an α-synuclein binding mode that accelerates oligomerization
(Journal article; Peer reviewed, 2021)Dysregulation of the biosynthesis of cholesterol and other lipids has been implicated in many neurological diseases, including Parkinson's disease. Misfolding of α-synuclein (α-Syn), the main actor in Parkinson's disease, ... -
CHOPCHOP v2: a web tool for the next generation of CRISPR genome engineering
(Journal article; Peer reviewed, 2016)In just 3 years CRISPR genome editing has transformed biology, and its popularity and potency continue to grow. New CRISPR effectors and rules for locating optimum targets continue to be reported, highlighting the need for ... -
CHOPCHOP v3: expanding the CRISPR web toolbox beyond genome editing
(Peer reviewed; Journal article, 2019-07-02)The CRISPR–Cas system is a powerful genome editing tool that functions in a diverse array of organisms and cell types. The technology was initially developed to induce targeted mutations in DNA, but CRISPR–Cas has now been ... -
Chromatin accessibility established by Pou5f3, Sox19b and Nanog primes genes for activity during zebrafish genome activation
(Journal article; Peer reviewed, 2020-01)In many organisms, early embryonic development is driven by maternally provided factors until the controlled onset of transcription during zygotic genome activation. The regulation of chromatin accessibility and its ... -
Chromatin and epigenetic features of long-range gene regulation
(Peer reviewed; Journal article, 2013-06-13)The precise regulation of gene transcription during metazoan development is controlled by a complex system of interactions between transcription factors, histone modifications and modifying enzymes and chromatin conformation. ...