Browsing Department of Chemistry, Bioscience and Environmental Engineering (TN-IKBM) by Issue Date
Now showing items 121-140 of 498
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Review of Nanotechnology Impacts on Oilfield Scale Management
(Peer reviewed; Journal article, 2020)Nanotechnology has grown rapidly in both research and applications over the past two decades including in the upstream petroleum industry. A recent hot area for studying nanotechnology has been oilfield scale management. ... -
Quantification by LC–MS/MS of astragaloside IV and isoflavones in Astragali radix can be more accurate by using standard addition
(Peer reviewed; Journal article, 2020)Introduction Astragali radix (AR), the root of Astragalus, is an important medical herb widely used in traditional Chinese medicine. Bioactive components include isoflavones and a unique class of triterpenoid saponins ... -
Feasibility study of polyetherimide membrane for enrichment of carbon dioxide from synthetic biohydrogen mixture and subsequent utilization scenario using microalgae
(Peer reviewed; Journal article, 2020)In this work, the potential of utilizing a polyetherimide (PEI) hollow-fiber membrane to separate synthetic biohydrogen mixture (H2/CO2) was studied. From the gas separation experiments, where the effects of feed to permeate ... -
Biological effects of pharmaceuticals around a marine wastewater outfall – a case study in Rogaland, Norway
(Masteroppgave/UIS-TN-IKBM/2020;, Master thesis, 2020-01)In this thesis, farmed Mytilus edulis were caged and deployed at three locations at the coastline of the North Sea to monitor the potential biological effect related to the presence of pharmaceuticals in the marine ... -
Molecular Dynamics Simulations of a Chimeric Androgen Receptor Protein (SPARKI) Confirm the Importance of the Dimerization Domain on DNA Binding Specificity
(Peer reviewed; Journal article, 2020-01)The DNA binding domains of Androgen/Glucocorticoid receptors (AR/GR), members of class I steroid receptors, bind as a homo-dimer to a cis-regulatory element. These response elements are arranged as inverted repeat (IR) of ... -
Characterisation of a novel cold-adapted calcium- activated transglutaminase: implications for medicine and food processing
(Peer reviewed; Journal article, 2020-03)Transglutaminases are a family of enzymes that catalyse the cross‐linking of proteins by forming covalent bonds between lysine and glutamine residues in various polypeptides. Cross‐linking reactions are involved in blood ... -
Multi-targeted trehalose-6-phosphate phosphatase I harbors a novel peroxisomal targeting signal 1 and is essential for flowering and development
(Peer reviewed; Journal article, 2020-04)A putative, non-canonical peroxisomal targeting signal type 1 (PTS1) Pro-Arg-Met > was identified in the extreme C-terminus of trehalose-6-phosphate phosphatase (TPP)I. TPP catalyzes the final step of trehalose synthesis, ... -
Permeability evolution of shear failing chalk cores under thermochemical influence
(Peer reviewed; Journal article, 2020-04)Development of petroleum reservoirs, including primary depletion of the pore pressure and repressurization during water injection naturally, leads to changes in effective stresses of the formations. These changes impose ... -
Understanding the role of the shrimp gut microbiome in health and disease
(Peer reviewed; Journal article, 2020-04)With rapid increases in the global shrimp aquaculture sector, a focus on animal health during production becomes ever more important. Animal productivity is intimately linked to health, and the gut microbiome is becoming ... -
Energy optimization of biological wastewater treatment using rotating belt filters upstream BNR
(Doctoral thesis, 2020-04)Treatment of wastewater to acceptable permit standards requires energy, mostly as electricity. The typical energy demand for various wastewater treatment technologies vary from 0.30 to 1.50 kWh/m3 of treated water. For ... -
A systems biology approach to cellular homeostasis, volume changes and regulation of metabolism
(PhD thesis UiS;509, Doctoral thesis, 2020-04)Cells need to respond to a vast range of different disturbances and changes over small and large time scales. This can be disturbances in the form of molecules used to fight infectious states, changes in growth patterns, ... -
Frequency switching between oscillatory homeostats and the regulation of p53
(Peer reviewed; Journal article, 2020-05)Homeostasis is an essential concept to understand the stability of organisms and their adaptive behaviors when coping with external and internal assaults. Many hormones that take part in homeostatic control come in ... -
Environmentally Friendly Phosphonated Polyetheramine Scale Inhibitors - Excellent Calcium Compatibility for Oilfield Applications
(Peer reviewed; Journal article, 2020-05)Scaling is one of the most frequently stated problems in the oil industry, and scale inhibitors (SIs) are applied to prevent its formation. Organophosphonates are well-known types of SIs, particularly useful for squeeze ... -
Synthesis and Investigation of Polymers of 2‑Methacrylamido-caprolactam as Kinetic Hydrate Inhibitors
(Peer reviewed; Journal article, 2020-05)Poly(N-vinylcaprolactam) (PVCap) and related copolymers have been used as kinetic hydrate inhibitors (KHIs) for over 25 years to combat gas hydrate formation in oil and gas field production flow lines. The caprolactam ... -
Synthesis of trans-dihydronaphthalene-diol and evaluation of their use as standards for PAH metabolite analysis in fish bile by GC-MS
(Peer reviewed; Journal article, 2020-05)Phenols and trans-1,2-dihydro-1,2-diols are metabolites commonly formed in vivo in fish upon exposure to polycyclic aromatic hydrocarbons (PAHs). These metabolites are excreted via the bile and gas chromatography-mass ... -
Transitioning from mesophilic to thermophilic anaerobic digestion at VEAS and the influence of co-digesting primary sludge with potato-stillage
(Masteroppgave/UIS-TN-IKBM/2020;, Master thesis, 2020-06)Anaerobic digestion (AD) is a microbial degradation process in the absence of oxygen by several complex biological reactions where polymeric organic carbon compounds are transformed into biogas and potential biofertilizer. ... -
High Cloud Point Polyvinylaminals as Non-Amide-Based Kinetic Gas Hydrate Inhibitors
(Peer reviewed; Journal article, 2020-06)In recent years, we have explored non-amide-based classes of kinetic hydrate inhibitor (KHI) polymers to determine if the same level of performance can be achieved as commercial KHI polymers, which all contain amide groups. ... -
Mitotic activity index and CD25+ lymphocytes predict risk of stage progression in non-muscle invasive bladder cancer
(Peer reviewed; Journal article, 2020-06)In urothelial cell type non-muscle invasive urinary bladder carcinoma, TNM stage and WHO grade are widely used to classify patients into low and high-risk groups for prognostic and therapeutic decision-making. However, ... -
Current wastewater treatment methods and emerging technologies with a focus on removal of pharmaceuticals.
(Masteroppgave/UIS-TN-IKBM/2020;, Master thesis, 2020-06)The global consumption of pharmaceuticals is increasing, and in recent years there has been a growing concern surrounding the release of pharmaceuticals to the environment. Wastewater treatment plants (WWTP) have been ... -
Alpha-synuclein biomarkers of Parkinson's disease risk and heterogeneity
(Masteroppgave/UIS-TN-IKBM/2020;, Master thesis, 2020-06)Parkinson’s disease (PD) is the second most common neurodegenerative disease and is the world’s fastest growing neurological disorder. PD is a motor disease, but many patients experience a range of non-motor features, ...