Browsing Brage NMBU by Author "Ropstad, Erik"
Now showing items 61-80 of 114
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Miljørisikovurdering av bruk av plantevernmidlet Rovral 75 WG med det virksomme stoffet iprodion
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Sverdrup, Line Emilie; Øvrebø, Steinar (VKM Report, Research report, 2007) -
Miljørisikovurdering av plantevernmidlet Axial 50 EC med det virksomme stoffet pinoksaden. Uttalelse fra Faggruppe for plantevernmidler i Vitenskapskomiteen for mattrygghet 29.juni 2010
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar; Grung, Merete (VKM Report, Research report, 2010) -
More frequent extreme climate events stabilize reindeer population dynamics
Hansen, Brage Bremset; Gamelon, Marlène; Albon, Steve D.; Lee, Aline Magdalena; Stien, Audun; Irvine, Robert Justin; Sæther, Bernt-Erik; Loe, Leif Egil; Ropstad, Erik; Veiberg, Vebjørn; Grøtan, Vidar (Journal article; Peer reviewed, 2019)Extreme climate events often cause population crashes but are difficult to account for in population-dynamic studies. Especially in long-lived animals, density dependence and demography may induce lagged impacts of ... -
NeemAzal med virksomt stoff azadiraktin: Vurdering av gentoksisitet, foster- og reproduksjonsskadelig effekt og dokumentasjon. Uttalelse fra Faggruppe for plantevernmidler (FG2) i Vitenskapskomiteen for mattrygghet
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar (VKM Report, Research report, 2012) -
The neglected season: Warmer autumns counteract harsher winters and promote population growth in Arctic reindeer
Loe, Leif Egil; Liston, Glen E.; Pigeon, Gabriel; Barker, Kristin; Horvitz, Nir; Stien, Audun; Forchhammer, Mads C.; Getz, Wayne M.; Irvine, Robert Justin; Lee, Aline Magdalena; Movik, Lars K.; Mysterud, Atle; Pedersen, Åshild Ønvik; Reinking, Adele K.; Ropstad, Erik; Trondrud, Liv Monica; Tveraa, Torkild; Veiberg, Vebjørn; Hansen, Brage Bremset; Albon, Steve D. (Peer reviewed; Journal article, 2020)Arctic ungulates are experiencing the most rapid climate warming on Earth. While concerns have been raised that more frequent icing events may cause die-offs, and earlier springs may generate a trophic mismatch in phenology, ... -
Neurodevelopmental toxicity of a human relevant mixture of persistent organic pollutants (POPs) and perfluorooctane sulfonic acid (PFOS)
Yadav, Ajay (PhD Thesis;2021:63, Doctoral thesis, 2021)Persistent organic pollutants (POPs) are ubiquitous in the environment. Humans are continuously exposed to chemical mixtures through food and the environment. Exposure to POPs have been associated with several adverse ... -
Ovarian Follicular Response to Oestrous Synchronisation and Induction of Ovulation in Norwegian Red Cattle
Berg, Halldor Felde; Heringstad, Bjørg; Alm-Kristiansen, Anne Hege; Kvale, Vilde Granne; Dragset, Knut Ingolf; Waldmann, Andres; Ropstad, Erik; Kommisrud, Elisabeth (Peer reviewed; Journal article, 2020)Oestrous synchronisation of cattle has been widely applied to accomplish simultaneous ovulation in animals and facilitate timed artificial insemination. The main aim of this study was to investigate the ovarian follicular ... -
Perfluoroalkyl acids potentiate glutamate excitotoxicity in rat cerebellar granule neurons
Berntsen, Hanne Friis; Moldes-Anaya, Angel; Bjørklund, Cesilie Granum; Ragazzi, Lorenzo; Haug, Trude M; Strandabø, Rønnaug; Verhaegen, Steven; Paulsen, Ragnhild Elisabeth; Ropstad, Erik; Tasker, Andrew (Peer reviewed; Journal article, 2020)Perfluoroalkyl acids (PFAAs) are persistent man-made chemicals, ubiquitous in nature and present in human samples. Although restrictions are being introduced, they are still used in industrial processes as well as in ... -
Perinatal exposure to a human relevant mixture of persistent organic pollutants: Effects on mammary gland development, ovarian folliculogenesis and liver in CD-1 mice
Johanson, Silje Modahl; Ropstad, Erik; Østby, Gunn Charlotte; Aleksandersen, Mona; Zamaratskaia, Galia; Boge, Gudrun Seeberg; Halsne, Ruth; Trangerud, Cathrine; Lyche, Jan Ludvig; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Verhaegen, Steven (Peer reviewed; Journal article, 2021)The ability of persistent organic pollutants (POPs) with endocrine disrupting properties to interfere with the developing reproductive system is of increasing concern. POPs are transferred from dams to offspring and the ... -
Peripherally administered persistent organic pollutants distribute to the brain of developing chicken embryo in concentrations relevant for human exposure
Yadav, Ajay; Verhaegen, Steven; Hadera, Mussie Ghezu; Berntsen, Hanne Friis; Berg, Vidar; Lyche, Jan Ludvig; Sabaredzovic, Azemira; Haug, Line Småstuen; Myhre, Oddvar; Zimmer, Karin Elisabeth; Paulsen, Ragnhild Elisabeth; Ropstad, Erik; Boix, Fernando (Peer reviewed; Journal article, 2021) -
Persistent organic pollutants and effects on developmental and functional processes in mice
Johanson, Silje Modahl (PhD Thesis;2020:45, Doctoral thesis, 2020)Initial exposure to persistent organic pollutants (POPs) occurs by placental and lactational transfer during fetal and neonatal life and continues during the adult stage through ingestion, inhalation and dermal absorption. ... -
Plasmid-associated antimicrobial resistance and virulence genes in Escherichia coli in a high arctic reindeer subspecies
Sunde, Marianne; Ramstad, Silje N.; Rudi, Knut; Porcellato, Davide; Ravi, Anuradha; Ludvigsen, Jane; das Neves, Carlos Gonçalo; Tryland, Morten; Ropstad, Erik; Slettemeås, Jannice S.; Telke, Amar A. (Peer reviewed; Journal article, 2021) -
Policy relevant results from an expert elicitation on the health risks of phthalates
Zimmer, Karin; Gutleb, Arno; Ravnum, Solveig; von Krauss, Martin Krayer; Murk, Albertinka J.; Ropstad, Erik; Skåre, Janneche Utne; Eriksen, Gunnar Sundstøl; Lyche, Jan Ludvig; Koppe, Janna G.; Magnanti, Brooke; Yang, Aileen; Bartonova, Alena; Keune, Hans (Journal article; Peer reviewed, 2012) -
Policy relevant Results from an Expert Elicitation on the Human Health Risks of Decabromodiphenyl ether (decaBDE) and Hexabromocyclododecane (HBCD)
Ravnum, Solveig; Zimmer, Karin; Keune, Hans; Gutleb, Arno; Murk, Albertinka J.; Koppe, Janna G.; Magnanti, Brooke; Lyche, Jan Ludvig; Eriksen, Gunnar Sundstøl; Ropstad, Erik; Skåre, Janneche Utne; Kobernus, Michael John; Yang, Aileen; Bartonova, Alena; von Krauss, Martin Krayer (Journal article; Peer reviewed, 2012) -
Reproductive potential and quality of SpermVital semen used for artificial insemination in cattle
Berg, Halldor Felde (PhD thesis;2020:17, Doctoral thesis, 2020)Utfallet av kunstig sædoverføring (KS) avhenger av flere faktorer, blant annet sædkvalitet, metoden for sædprosessering og miljøet i kjønnsorganet hos det inseminerte hunndyret. Vellykket KS hos storfe krever også riktig ... -
Risikovurdering av bruk av plantevernmidlet Proline EC 250 med det virksomme stoffet protiokonazol
Dybing, Erik; Eklo, Ole Martin; Gislerød, Hans Ragnard; Hofsvang, Trond; Holene, Edel; Källqvist, Torsten; Klingen, Ingeborg; Rivedal, Edgar Jarle; Ropstad, Erik; Skåre, Janneche Utne; Sundheim, Leif; Sverdrup, Line Emilie; Tronsmo, Anne Marte; Øvrebø, Steinar (VKM Report, Research report, 2007) -
Risikovurdering av bruk av plantevernmidlet Signum med de virksomme stoffene boskalid og pyraklostrobin
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Sverdrup, Line Emilie; Øvrebø, Steinar (VKM Report, Research report, 2007) -
Risikovurdering av bruk av plantevernmidlet Topsin med det virksomme stoffet tiofanatmetyl
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Sverdrup, Line Emilie; Øvrebø, Steinar (VKM Report, Research report, 2007) -
Risikovurdering av nematoden Phasmarhabditis hermaphrodita brukt som plantevernmiddel
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Øvrebø, Steinar (VKM Report, Research report, 2008) -
Risikovurdering av nematoden Steinernema feltiae brukt som plantevernmiddel
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Sverdrup, Line Emilie; Øvrebø, Steinar (VKM Report, Research report, 2007)