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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

The Pitted Ware Site and People of Vendel : A study of the Pitted Ware site Vendel, Vendel parish, Uppland, based on vessel use through analysis of lipid residue absorbed in Pitted Ware pottery

Isacson, Mimmi January 2012 (has links)
Analysis of organic residue absorbed in to the walls of ceramic vessels has proved to be a valuable contributor to the knowledge of prehistoric societies. Based on the analysis of absorbed lipids in the wall of ceramic vessels and existing knowledge and theories about the Pitted Ware culture, an attempt of understanding of the Pitted Ware site Vendel is made. Based on the obtained results and evidences presented throughout the paper it is argued that the Vendel site is a permanent or seasonal settlement, and furthermore that the results seem to reflect a change in vessel use towards the end of the Pitted Ware Culture, and possibly even a change of society, ideology and economy.
12

Novel concepts for lipid identification from shotgun mass spectra using a customized query language

Herzog, Ronny 23 August 2012 (has links) (PDF)
Lipids are the main component of semipermeable cell membranes and linked to several important physiological processes. Shotgun lipidomics relies on the direct infusion of total lipid extracts from cells, tissues or organisms into the mass spectrometer and is a powerful tool to elucidate their molecular composition. Despite the technical advances in modern mass spectrometry the currently available software underperforms in several aspects of the lipidomics pipeline. This thesis addresses these issues by presenting a new concept for lipid identification using a customized query language for mass spectra in combination with efficient spectra alignment algorithms which are implemented in the open source kit “LipidXplorer”.
13

Novel concepts for lipid identification from shotgun mass spectra using a customized query language

Herzog, Ronny 30 May 2012 (has links)
Lipids are the main component of semipermeable cell membranes and linked to several important physiological processes. Shotgun lipidomics relies on the direct infusion of total lipid extracts from cells, tissues or organisms into the mass spectrometer and is a powerful tool to elucidate their molecular composition. Despite the technical advances in modern mass spectrometry the currently available software underperforms in several aspects of the lipidomics pipeline. This thesis addresses these issues by presenting a new concept for lipid identification using a customized query language for mass spectra in combination with efficient spectra alignment algorithms which are implemented in the open source kit “LipidXplorer”.
14

Algae Characterization and Processing Techniques

Bosley, Amber L. January 2011 (has links)
No description available.
15

The Dominance of the Archaea in the Terrestrial Subsurface

Johnston, Michael David January 2013 (has links)
No description available.
16

Illuminating the Late Mesolithic: residue analysis of 'blubber' lamps from Northern Europe

Heron, Carl P., Andersen, S.H., Fischer, Anders, Glykou, A., Hartz, S., Saul, H., Steele, Valerie J., Craig, O.E. January 2013 (has links)
No / Shallow oval bowls used on the Baltic coast in the Mesolithic have been suggested as oil lamps, burning animal fat. Here researchers confirm the use of four coastal examples as lamps burning blubber-the fat of marine animals, while an inland example burned fat from terrestrial mammals or freshwater aquatics-perhaps eels. The authors use a combination of lipid biomarker and bulk and single-compound carbon isotope analysis to indicate the origin of the residues in these vessels.

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