Browsing ODA Open Digital Archive by Author "Rønning, Per Ola"
Now showing items 1-17 of 17
-
Bridging the polar and hydrophobicmMetabolome in single-run untargeted liquid chromatography-mass spectrometry dried blood spot metabolomics for clinical purposes
Skogvold, Hanne Bendiksen; Sandås, Elise Mørk; Østeby, Anja; Løkken, Camilla; Rootwelt, Helge; Rønning, Per Ola; Wilson, Steven Ray Haakon; Elgstøen, Katja Benedikte Prestø (Peer reviewed; Journal article, 2021)Dried blood spot (DBS) metabolite analysis is a central tool for the clinic, e.g., newborn screening. Instead of applying multiple analytical methods, a single liquid chromatography-mass spectrometry (LC–MS) method was ... -
Caffeine Increases Strength and Power Performance in Resistance-trained Females During Early Follicular Phase
Norum, Martin; Risvang, Linn; Bjørnsen, Thomas; Dimitriou, Lygeri; Rønning, Per Ola; Bjørgen, Morten; Raastad, Truls (Scandinavian Journal of Medicine & Science in Sports;Volume 30, Issue 11, November 2020, Journal article; Peer reviewed, 2020-07-18)The effects of 4 mg·kg−1caffeine ingestion on strength and power were investigated for the first time, in resistance-trained females during the early follicular phase utilizing a randomized, double-blind, placebo-controlled, ... -
Development of a liquid chromatography-tandem mass spectrometry analysis for cortisol as a stress biomarker to monitor fish welfare
Meling, Vanessa Andrea (Master thesis, 2021)Background: Norway is the world’s biggest salmon producer and the salmon industry has grown to become Norway’s second largest export industry in value, after oil and gas. Despite the impressive growth, the industry is still ... -
Eksplosivanalyse av marin biota – metodeutvikling og optimalisering
Raviraj, Akshea; Vik, Mathilde (Bachelor thesis, 2022)De siste hundre årene ble store mengder ammunisjon dumpet på havbunnen, men vi vet lite om påvirkningen dette har på livet i havet. Analyse av eksplosiver i marin biota kan bidra til økt kunnskap deres påvirkning på ... -
Gas chromatographic analysis of phospholipid fatty acids in human serum - Serum phospholipid fatty acid composition in relation to overweight, semen quality and weight loss
Bekken, Siri Davidsen (Master thesis, 2013)Introduction: The increasing prevalence of overweight and obesity has become one of the major health concerns in modern times. Male obesity has been associated with decreased male reproduction function and fertility in ... -
A global metabolomics minefield: Confounding effects of preanalytical factors when studying rare disorders
Skogvold, Hanne Bendiksen; Wilson, Steven Ray Haakon; Rønning, Per Ola; Ferrante, Linda; Opdal, Siri Hauge; Rognum, Torleiv Ole; Rootwelt, Helge; Elgstøen, Katja B. Prestø (Peer reviewed; Journal article, 2023)A common challenge when studying rare diseases or medical conditions is the limited number of patients, usually resulting in long inclusion periods as well as unequal sam- pling and storage conditions. The main purpose ... -
Global metabolomikk som verktøy for påvisning av biomarkører
Dernjani, Nurtene; Nguyen, Maria Thuy Kieu Thi (Bachelor thesis, 2023)Formålet med denne oppgaven var å påvise potensielle biomarkører knyttet til trening. Utgangspunktet for metoden var en allerede etablert LC-MS/MS-metode til analyse av metabolomet, samt prøveopparbeiding av «Dried ... -
Kjemiskscreening av husstøvprøver
Sellaturai, Tharsana; Gebremariam, Finan Fitsum (Bachelor thesis, 2019-05-23)Det ble utført en kjemiskscreening av 26 husstøvprøver, kjørt på en GC-HR-QTOF MS ved en nontarget analyse. Dataene fra analysen er ekstrahert ved bruk av programmet Unknowns Analysis påkoblet til MS biblioteker som ... -
Monitoring farmed fish welfare by measurement of cortisol as a stress marker in fish feces by liquid chromatography coupled with tandem mass spectrometry
Meling, Vanessa Andrea; Berge, Kjetil; Knudsen, David Lausten; Rønning, Per Ola; Brede, Cato (Molecules;Volume 27 / Issue 8, Peer reviewed; Journal article, 2022-04-12)The aquaculture industry has become a sustainable source of food for humans. Remaining challenges include disease issues and ethical concerns for the discomfort and stress of farmed fish. There is a need for reliable ... -
Optimalisering av ekstraksjon og renseprosedyre for miljøprøver til analyse av polysykliske aromatiske hydrokarboner (PAH)
Macleod, Kaia Catherine; Nguyen, Cynthia Hoang (Bachelor thesis, 2022)Hensikten med denne oppgaven var å optimalisere ekstraksjoner og renseprosedyrer av PAH i mikrosilika og sammenlikne dette med den standard metoden som bruker Soxhlet og PAH-silika. Det brukt 3 forskjellige mikrosilika ... -
Prediction of influent composition in wastewater and sludge based on Statistical and Machine Learning models
Mukherjee, Bipasha (Master thesis, 2023)For the optimized operation of a wastewater resource recycle facility (WWRF), it is essential to consider significant disturbances such as fluctuations in the influent flow rate and wastewater compositions. The online ... -
A study into prevention of antibiotics resistance through enhanced building infrastructure design and management strategies
Rolfsen, Christian Nordahl; Rønning, Per Ola; Bull, Jack Lie; Chițonu, Cristina (IOP Conference Series: Materials Science and Engineering;Volume 789, International Conference CIBv2019 Civil Engineering and Building Services 1-2 November 2019, Brașov, Romania, Journal article; Peer reviewed, 2020)This study is part of a larger research project, which looks at how modern hospitals are built in Norway, and what can be done to make hospitals more user friendly and purpose built. It looks at how medical facilities can ... -
A study of quantitative and qualitative performance of metabolomics compared with targeted analyses used in laboratory diagnostics
Storbråten, Marielle (Master thesis, 2021)Today, several specific and targeted analyses are used for detection of different chemical compounds and diagnostics of inborn errors of metabolism (IEMs). Metabolomics, an untargeted analytical approach, has been used as ... -
A study of quantitative and qualitative performance of metabolomics compared with targeted analyses used in laboratory diagnostics
Storbråten, Marielle (Master thesis, 2021-05)Today, several specific and targeted analyses are used for detection of different chemical compounds and diagnostics of inborn errors of metabolism (IEMs). Metabolomics, an untargeted analytical approach, has been used as ... -
Synthesis and LC-MS Analysis of Cinchona Derivatives
Zaben, Hana (Master thesis, 2021)Cinchona alkaloids with their main component Quinine, are isolated from the barks of several species of cinchona trees and have been used in medicine for over 400 years mainly as anti-malarial medication. These natural ... -
Synthesis and LC-MS Analysis of Cinchona Derivatives
Zaben, Hana (Master thesis, 2021)Cinchona alkaloids with their main component Quinine, are isolated from the barks of several species of cinchona trees and have been used in medicine for over 400 years mainly as anti-malarial medication. These natural ... -
Utvilkling av metoder for opparbeiding og analyse av gamle regulerte og «nye» ikke regulerte miljøgifter i husstøv
Kopperud, Jenny Kristine; Bentzen, Kristin Leonore Lillebo (Bachelor thesis, 2019-05-23)I denne oppgaven ble fem metoder for prøveopparbeiding av POPer i husstøv sammenlignet. Miljøgiftene som ble fokusert på er polyklorinerte bisfenoler (PCB), klorparafiner (CP), polybrominerte defenyletere (PBDE) og nye ...