Burchardt, Leonore

[["dc.bibliographiccitation.artnumber","85"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Bulletin of Volcanology"],["dc.bibliographiccitation.volume","78"],["dc.contributor.author","Berg, S. E."],["dc.contributor.author","Troll, Valentin R."],["dc.contributor.author","Deegan, F. M."],["dc.contributor.author","Burchardt, S."],["dc.contributor.author","Krumbholz, Michael"],["dc.contributor.author","Mancini, L."],["dc.contributor.author","Polacci, M."],["dc.contributor.author","Carracedo, J. C."],["dc.contributor.author","Soler, V."],["dc.contributor.author","Arzilli, F."],["dc.contributor.author","Brun, F."],["dc.date.accessioned","2018-11-07T10:04:42Z"],["dc.date.available","2018-11-07T10:04:42Z"],["dc.date.issued","2016"],["dc.description.abstract","During the first week of the 2011 El Hierro submarine eruption, abundant light-coloured pumiceous, high-silica volcanic bombs coated in dark basanite were found floating on the sea. The composition of the light-coloured frothy material ('xeno-pumice') is akin to that of sedimentary rocks from the region, but the textures resemble felsic magmatic pumice, leaving their exact mode of formation unclear. To help decipher their origin, we investigated representative El Hierro xeno-pumice samples using X-ray computed microtomography for their internal vesicle shapes, volumes, and bulk porosity, as well as for the spatial arrangement and size distributions of vesicles in three dimensions (3D). We find a wide range of vesicle morphologies, which are especially variable around small fragments of rock contained in the xeno-pumice samples. Notably, these rock fragments are almost exclusively of sedimentary origin, and we therefore interpret them as relicts an the original sedimentary ocean crust protolith(s). The irregular vesiculation textures observed probably resulted from pulsatory release of volatiles from multiple sources during xeno-pumice formation, most likely by successive release of pore water and mineral water during incremental heating and decompression of the sedimentary protoliths."],["dc.identifier.doi","10.1007/s00445-016-1080-x"],["dc.identifier.isi","000394130700001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14358"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38755"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-0819"],["dc.relation.issn","0258-8900"],["dc.relation.orgunit","Fakultät für Geowissenschaften und Geographie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Heterogeneous vesiculation of 2011 El Hierro xeno-pumice revealed by X-ray computed microtomography"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e0190190"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","PLOS ONE"],["dc.bibliographiccitation.lastpage","13"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Pfefferle, Dana"],["dc.contributor.author","Plümer, Sina"],["dc.contributor.author","Burchardt, Leonore"],["dc.contributor.author","Treue, Stefan"],["dc.contributor.author","Gail, Alexander"],["dc.contributor.editor","Roques, Pierre"],["dc.date.accessioned","2018-01-17T13:10:07Z"],["dc.date.available","2018-01-17T13:10:07Z"],["dc.date.issued","2018"],["dc.description.abstract","Non-human primates participating in neurophysiological research are exposed to potentially stressful experimental procedures, such as dietary control protocols, surgical implants and their maintenance, or social separation during training and experimental session. Here, we investigated the effect of controlled access to fluid, surgical implants, implant-related cleaning of skin margins, and behavioral training sessions on salivary cortisol levels of adult male rhesus macaques participating in neurophysiological research. The animals were trained to chew flavored cotton swabs to non-invasively collect saliva samples. Our data show no differences in cortisol levels between animals with and without implants, but both, controlled access to fluid and cleaning of implants individually increased salivary cortisol concentrations, while both together did not further increase the concentration. Specifically, before cleaning, individuals with controlled access to fluid had 55% higher cortisol concentrations than individuals with free access to fluid. Under free access to fluid, cortisol concentrations were 27% higher after cleaning while no effect of cleaning was found for individuals under controlled fluid access. Training sessions under controlled access to fluid also did not affect salivary cortisol concentrations. The observed changes in cortisol concentrations represent mild stress responses, as they are only a fraction of the range of the regular circadian changes in cortisol levels in rhesus monkeys. They also indicate that combinations of procedures do not necessarily lead to cumulative stress responses. Our results indicate that salivary cortisol levels of rhesus monkeys respond to neurophysiological experimental procedures and, hence, may be used to assess further refinements of such experimental methods."],["dc.identifier.doi","10.1371/journal.pone.0190190"],["dc.identifier.pmid","29293564"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15070"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/11703"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.eissn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Assessment of stress responses in rhesus macaques (Macaca mulatta) to daily routine procedures in system neuroscience based on salivary cortisol concentrations"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]