Browsing Institutt for kjemi by Title
Now showing items 656-675 of 1368
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Local initiation conditions for water autoionization
(Journal article; Peer reviewed, 2018)The pH of liquid water is determined by the infrequent process in which water molecules split into short-lived hydroxide and hydronium ions. This reaction is difficult to probe experimentally and challenging to simulate. ... -
Local pollution sources in Ny-Ålesund. Follow-up study of booster impact area in Brøggerdalen, and new study of leaching pollutants from Kolhaugen
(Master thesis, 2023)Langtransportert forurenset luft til Arktis er et velldokumentert fenomen siden oppmerksomhet rundt persistente organiske miljøgifter økte på midten av 1900-tallet. Effekten av lokale, menneskeskapte forurensning i Arktisk ... -
Local thermodynamic description of isothermal single-phase flow in porous media
(Journal article; Peer reviewed, 2022)Darcy's law for porous media transport is given a new local thermodynamic basis in terms of the grand potential of confined fluids. The local effective pressure gradient is determined using non-equilibrium molecular dynamics, ... -
Long-range transport of pollutants to arctic areas by seabirds
(Master thesis, 2022)Målet i denne oppgaven er å identifisere miljøgifter i arktisk og se om disse har noen sammenheng med fugler i området. Det ble tatt jordprøver fra forskjellige lokasjoner i Kongsfjorden: Ossian Sars, Botnfjell, Storholmen, ... -
Lære ved å gjøre, lære ved å skrive?: - Om skriving og læring i eksperimentelt arbeid
(Master thesis, 2012)Denne oppgaven tar for seg noen av grunnene til at eksperimentelt arbeid i kjemi ikke har vært så læringseffektivt som man har trodd og ønsket. Den beskriver videre muligheter for å gjøre noe med problemene, både ved hjelp ... -
Mapping and study of contamination in sediment and water column in the area used for snow dumping in the Trondheimsfjord.
(Master thesis, 2016)I Trondheim dumpes det meste av overskuddssnøen fra byen og omegn direkte i fjorden fra kaier i havna. Snø tar opp forurensninger fra kilder i byen, og vil dermed være forurenset med stoffer som bla. tungmetaller og organiske ... -
Mapping and study of contamination in sediment and water column in the area used for snow dumping in the Trondheimsfjord.
(Master thesis, 2016)I Trondheim dumpes det meste av overskuddssnøen fra byen og omegn direkte i fjorden fra kaier i havna. Snø tar opp forurensninger fra kilder i byen, og vil dermed være forurenset med stoffer som bla. tungmetaller og organiske ... -
Mapping and Study of Possible Chemical Contamination from Military Material Found in Dumping Site in the Trondheimsfjord
(Master thesis, 2016)This thesis has revolved around a dumping site at approximately 600 m depth in the Trondheimsfjord containing military material from the Second World War. Both water and sediment samples have been taken in and around the ... -
Mass Spectrometric Metabolic Profiling of Human Cells during Cell Cycle and Cytostatic Treatment.
(Master thesis, 2013)This project had to different objectives. The first goal was to study the metabolite pool of the cell lines HaCaT and DU145 in the different cell phases in the cell cycle. To obtain this data, the cell lines had to be ... -
Massively Parallel Arrays of Size-Controlled Metallic Nanogaps with Gap-Widths Down to the Sub-3-nm Level
(Peer reviewed; Journal article, 2021)Metallic nanogaps (MNGs) are fundamental components of nanoscale photonic and electronic devices. However, the lack of reproducible, high-yield fabrication methods with nanometric control over the gap-size has hindered ... -
Maternal bisphenol and phthalate urine concentrations and weight gain during pregnancy
(Journal article; Peer reviewed, 2020) -
Maternal bisphenol urine concentrations, fetal growth and adverse birth outcomes: A population-based prospective cohort
(Journal article; Peer reviewed, 2021) -
Maternal dopamine exposure provides offspring starvation resistance in Daphnia
(Peer reviewed; Journal article, 2022)The neurotransmitter dopamine has been shown to play an important role in modulating behavioral, morphological, and life history responses to food abundance. However, costs of expressing high dopamine levels remain poorly ... -
Maternal phthalate urine concentrations, fetal growth and adverse birth outcomes. A population-based prospective cohort study
(Peer reviewed; Journal article, 2021)Importance Exposure to phthalates may affect fetal growth, but previous studies are inconsistent and have not explored the trimester-specific effects of phthalates on repeated measures of fetal growth. Objective To ... -
Mechanical instability of monocrystalline and polycrystalline methane hydrates
(Journal article; Peer reviewed, 2015)Despite observations of massive methane release and geohazards associated with gas hydrate instability in nature, as well as ductile flow accompanying hydrate dissociation in artificial polycrystalline methane hydrates ... -
Mechanistic Study of Chemical Reactions Using Path Sampling
(Doctoral theses at NTNU;2016:363, Doctoral thesis, 2016)Molecular simulations are the ideal tool to obtain detailed information at the molecular scale which is often invisible to experiments. However, we are still far from a situation in which industries and pharmaceutical ... -
Mekanistiske studier i kjemo-enzymatisk syntese av enantiomert rene byggestener for betablokkeren Atenolol
(Master thesis, 2015)Byggestener for atenolol er blitt syntetisert. Det er blitt utført kinetisk oppløsning på byggestenene med CALB for å få enantiomert rene produkter. CALB var meget enantioselektiv i de kinetiske oppløsningene. Det ble ... -
Membrane processes relevant for the polymer electrolyte fuel cell
(Master thesis, 2013)Research in the Proton Exchange Membrane Fuel Cell (PEMFC) is important toget an efficient fuel cell that can be used as an energy carrier, for example in thetransport sector. Understanding the different phenomena and ... -
Mercury in Marine Arctic Sediments
(Master thesis, 2022)Økende temperaturer grunnet klimaendringer forventes å frigjøre kvikksølv lagret i permafrost, og øke mengden kvikksølv som blir transportert til Arktiske hav fra elver i Sibir (Liem-Nguyen et al., 2022; Schuster et al., ... -
Mercury pathways in the Arctic and possible future trends caused by climate change
(Bachelor thesis, 2024)Arktis opplever betydelige endringer som følge av klimaendringer, inkludert høyere temperaturer, tap av sjøis, og økt skogbrannaktivitet. Disse endringene påvirker kvikksølv (Hg)-syklusen, med komplekse konsekvenser for ...