Blar i Department of Mathematics and Natural Sciences på forfatter "Ruoff, Peter"
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Antibacterial effect of chitosan in relation to active food packaging
Høie, Miriam (Masteroppgave/UIS-TN-IMN/2017;, Master thesis, 2017-06)Food safety has a high priority in the food industry. In order to be able to give the consumers safe products, the producers continuously work with methods to inhibit growth of bacteria in the foods during storage. Recently, ... -
Computational evaluation of different arrangements for the circadian clock in Arabidopsis thaliana.
Khan, Shanawar Ali (Masteroppgave/UIS-TN-IKBM/2019;, Master thesis, 2019-08)The circadian clock is an endogenous timekeeper that enables individuals to predict and adjust to their environment's regular differences between light and dark and high and low temperatures. This biological timing mechanism ... -
Detection and Characterization of Circulating Tumor Cells in Early Breast Cancer
Tidwell, Tia (Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06)Background: Detection of circulating tumor cells (CTCs) has demonstrated prognostic significance in metastatic breast cancer. This is less studied in early breast cancer due to the rarity of such cells in early disease and ... -
Determination of porin channel activity and evolution of targeting signals in plant peroxisomes
Soni, Pradeep (University of Stavanger, Norway;, Doctoral thesis, 2013)Peroxisomes are eukaryotic organelles traditionally known for their roles in fatty acid metabolism and generation and removal of hydrogen peroxide. Several new functions are being ascribed to these organelles with the help ... -
Matkvalitet på norske brunalger, med fokus på butare (Alaria esculenta) og sukkertare (Saccharina latissima)
Jordbrekk Blikra, Marthe (Masteroppgave/UIS-TN-IMN/2016;, Master thesis, 2016-06-15)I denne masteroppgaven ble Alaria esculenta (butare) og Saccharina latissima (sukkertare) undersøkt for overordnet kvalitet, med vekt på mikrobiologi, farge og tekstur. Algene ble dyrket og høstet på Værlandet-Bulandet ... -
PLATINUM SENSITIVE 2 LIKE impacts growth, root morphology, seed set, and stress responses
Lillo, Catherine; Kataya, Amr R. A.; Creighton, Maria Terese; Napitupulu, Toga P.; Sætre, Christine; Heidari, Behzad; Ruoff, Peter (Journal article; Peer reviewed, 2017-07)Eukaryotic protein phosphatase 4 (PP4) is a PP2A-type protein phosphatase that is part of a conserved complex with regulatory factors PSY2 and PP4R2. Various lines of Arabidopsis thaliana with mutated PP4 subunit genes ... -
Semi-algebraic optimization of temperature compensation in a general switch-type negative feedback model of circadian clocks
Aase, Sven Ole; Ruoff, Peter (Journal article; Peer reviewed, 2008)Temperature compensation is an essential property of circadian oscillators which enables them to act as physiological clocks. We have analyzed the temperature compensating behavior of a generalized transcriptional–translational ... -
Sensitivity analysis of a pathway with respect to fast and small temperature change
Zakhartsev, Maksim; Ruoff, Peter (Journal article; Peer reviewed, 2019)Temperature affects all enzymes simultaneously in a metabolic system. The enzyme concentration in a biochemical system can be considered as invariant under fast and small temperature change. Therefore, the total sensitivity ... -
The organization of controller motifs leading to robust plant iron homeostasis
Agafonov, Oleg; Selstø, Christina Helen; Thorsen, Kristian; Xiang, Ming Xu; Drengstig, Tormod; Ruoff, Peter (Journal article; Peer reviewed, 2016-01)Iron is an essential element needed by all organisms for growth and development. Because iron becomes toxic at higher concentrations iron is under homeostatic control. Plants face also the problem that iron in the soil is ... -
Variable setpoint as a relaxing component in physiological control
Risvoll, Geir; Thorsen, Kristian; Ruoff, Peter; Drengstig, Tormod (Journal article; Peer reviewed, 2017-09)Setpoints in physiology have been a puzzle for decades, and especially the notion of fixed or variable setpoints have received much attention. In this paper, we show how previously presented homeostatic controller motifs, ...