Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"GDGT"”.
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GDGT liposomes for oral peptide delivery
… λιπίδια glycerol dialkyl glycerol tetraether (GDGT) με τη μέθοδο της μικρορρευστικής ανάμιξης και βελτιστοποιήθηκαν συστηματικά ως προς τη λιπιδική τους σύσταση. Ο χαρακτηρισμός των κυστιδίων πραγματοποιήθηκε με δυναμική σκέδαση φωτός (DLS), με προσδιορισμό του μεγέθους και του δείκτη …
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The Reconstruction of Climate in Beringia by analysis of Glycerol Dialkyl Glycerol Tetraether (GDGT) Distributions using High Performance Liquid Chromatography – Mass Spectrometry (HPLC-MS).
… Glycerol dialkyl glycerol tetraether (GDGT) ratios within the extracts were used to reconstruct sea surface temperatures (SSTs), mean air temperatures (MATs) and pH. Climatic and environmental parameters were successfully assessed and reconstructed using isoprenoid GDGTs (isoGDGTs), …
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Molecular studies of the sources and significance of archaeal lipids in the oceans
… synthesize glycerol dialkyl glycerol tetraether (GDGT) lipids - including crenarchaeol, previously thought limited to autotrophic Thaumarchaeota. This finding has important implications for paleoenvironmental proxies reliant upon GDGTs. To investigate the effects of organic matter and bicarbonate …
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Hydrogen isotope fractionation in ammonia-oxidizing archaea
… glycerol dibiphytanyl glycerol tetraether (GDGT) membrane lipids of ammonia-oxidizing archaea (class Nitrososphaeria) as a novel palaeohydrological proxy has gained increasing attention. This PhD thesis investigates the hydrogen isotope fractionation (2εL/W) in Nitrososphaeria to assess the …
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Reconstructing late Holocene Artctic climate change using high resolution sediment records from Simpson Lagoon, Alaska and the Colville River alluvial valley
… surface air temperature are obtained using the brGDGT-derived MBT’/CBT paleothermometer. A comprehensive study of lagoon and river sediments and catchment soils demonstrate that brGDGTs are primarily soil-derived, and yield reconstructed temperatures consistent with instrumental summer temperature …
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Mechanistic underpinnings of lacustrine brGDGT production, and proteomic vertebrate taxonomic identification of phrynosomatid lizards and arvicoline rodents
… glycerol dialkyl glycerol tetraethers (brGDGTs)— derived from bacteria; 2) The viability of taxonomic identification of North American lizards using proteomic analysis of the collagen (I) (COL1) protein in bone, and this method’s ability to test the accuracy of morphological …