Blar i Bergen Open Research Archive på forfatter "Grung, Bjørn"
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Discrimination of n-3 Rich Oils by Gas Chromatography
Araujo, Pedro; Zeng, Yingxu; Du, Zhen-Yu; Nguyen, Thu-Thao; Frøyland, Livar; Grung, Bjørn (Peer reviewed; Journal article, 2010-11-22)Exploring the capabilities of instrumental techniques for discriminating n-3 rich oils derived from animals is a very important though much neglected area that was emphasized more than 100 years ago. In this study the ... -
The effects of diet on levels of physical activity during winter in forensic inpatients - A randomized controlled trial
Hansen, Anita Lill; Ambroziak, Gina; Thornton, David Malcolm; Dahl, Lisbeth Jane; Grung, Bjørn (Journal article; Peer reviewed, 2020)Background: Fish consumption has been shown to have beneficial effects on biological and subjective measures of health and well-being. However, little is known about the effects of fish consumption at the behavioral ... -
Exploratory multivariate analysis of the effect of fatty fish consumption and medicinal use on heart rate and heart rate variability data
Grung, Bjørn; Hansen, Anita Lill; Berg, Mari; Møen-Knudseth, Maria Pernille; Olson, Gina; Thornton, David Malcolm; Dahl, Lisbeth; Thayer, Julian Francis (Peer reviewed; Journal article, 2015-02-17)The overall aim of the present study was to explore the relationship between medicinal use and fatty fish consumption on heart rate variability (HRV) and heart rate (HR) in a group of forensic inpatients on a variety of ... -
Number of components and prediction error in partial least squares regression determined by Monte Carlo resampling strategies
Kvalheim, Olav Martin; Grung, Bjørn; Rajalahti, Tarja (Peer reviewed; Journal article, 2019)Using a metabolomics data set with 1057 serum samples, we designed and assessed different procedures based on Monte Carlo resampling schemes to determine the optimal number of components to be included in partial least ... -
Reduced anxiety in forensic inpatients after a long-term intervention with Atlantic salmon
Hansen, Anita Lill; Olson, Gina; Dahl, Lisbeth; Thornton, David Malcolm; Grung, Bjørn; Graff, Ingvild Eide; Frøyland, Livar; Thayer, Julian F. (Peer reviewed; Journal article, 2014-11-26)The aim of the present study was to investigate the effects of Atlantic salmon consumption on underlying biological mechanisms associated with anxiety such as heart rate variability (HRV) and heart rate (HR) as well as a ... -
Toxicological evaluation of complex mixtures by pattern recognition: Correlating chemical fingerprints to mutagenicity
Ingvar, Eide; Neverdal, Gunhild; Thorvaldsen, Bodil; Grung, Bjørn; Kvalheim, Olav Martin (Journal article, 2002-12)We describe the use of pattern recognition and multivariate regression in the assessment of complex mixtures by correlating chemical fingerprints to the mutagenicity of the mixtures. Mixtures were 20 organic extracts of ... -
Vitamin D supplementation during winter: Effects on stress resilience in a randomized control trial
Hansen, Anita Lill; Ambroziak, Gina; Thornton, David; Mundt, James C.; Kahn, Rachel E.; Dahl, Lisbeth; Waage, Leif; Kattenbraker, Daniel; Araujo, Pedro; Murison, Robert; Rypdal, Knut; Grung, Bjørn (Journal article; Peer reviewed, 2020)Vitamin D status may be important for stress resilience. This study investigated the effects of vitamin D supplements during winter on biological markers of stress resilience such as psychophysiological activity, serotonin, ...