Search for dissertations about: "J Martin"

Showing result 1 - 5 of 38 swedish dissertations containing the words J Martin.

2. 1. Crustal evolution of the Arabian–Nubian Shield : Insights from zircon geochronology and Nd–Hf–O isotopes

   Author : Fitsum Girum Yeshanew; Victoria Pease; Martin J. Whitehouse; Robert J. Stern; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Gondwana; Arabian–Nubian Shield; Azania; zircon U–Pb–O–Hf isotopes; Nd isotopes; Cambrian Sandstones; juvenile; pre–Neoproterozoic; reworking; Geology; geologi;

   Abstract : The Arabian–Nubian Shield (ANS) represents a major site of juvenile Neoproterozoic crustal addition on Earth and documents Neoproterozoic tectonics bracketed by two supercontinent cycles, namely the fragmentation of Rodinia and the amalgamation of Gondwana. There is general consensus that the ANS formed by juvenile magmatic arc accretion and subsequent shield–wide post–tectonic magmatism. READ MORE

4. 2. Design and synthesis of xyloglucan oligosaccharides : structure-function studies and application of xyloglucan endotransglycosylase PttXET16A

   Author : Martin J. Baumann; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; xyloglucan oligosaccharides; xyloglucan endotransglycosylase; XET; crystal structure; fiber surface modification; Populus tremula x Populus tremuloides; Hybrid aspen;

   Abstract : Primary cell walls are a composite of cellulose microfibrilsand hemicelluloses. Xyloglucan is the principal hemicelluloseof primary cell walls of dicotyledons. Xyloglucanendotransglycosylases (XETs) cleave and religate xyloglucanpolymers in plant cell walls. READ MORE

5. 3. Xyloglucan-active enzymes : properties, structures and applications

   Author : Martin J. Baumann; Tuula T. Teeri; Harry Brumer; Vincent Eijsink; KTH; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; xyloglucan; xyloglucan endo-transglycosylase hydrolase; xyloglucan endo-hydrolase; xyloglucan endo-transglycosylase; XET; xyloglucan oligosaccharides; synthesis; carbohydrate; cellulose; crystal structure; fiber; surface modification; Populus tremula x Populus tremuloides; Hybrid aspen; nasturtium; NXG; Biochemistry; Biokemi;

   Abstract : Cellulosabaserade material är världens rikligast förekommande förnyelsebara råvara. Växters cellväggar är naturliga kompositmaterial där den kristallina cellulosan är inbäddad i en väv av hemicellulosa, strukturproteiner och lignin. READ MORE

6. 4. Leukotriene A4 hydrolase : identification of amino acid residues involved in catalyses and substrate-mediated inactivation

   Author : Martin J Mueller; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Leukotriene (LT) A4 hydrolase catalyzes the committed step in the biosynthesis of LTB4, a classical chemoattractant and immuine-modulating lipid mediator involved in inflammation, host-defense against infections, and systemic, PAF-mediated, lethal shock. LTA4 hydrolase is a bifunctional zinc metalloenzyme with a chloride stimulated arginyl aminopeptidase activity. READ MORE

7. 5. Electro-Acoustic and Electronic Applications Utilizing Thin Film Aluminium Nitride

   Author : David Michael Martin; J. Olsson; I. Katardjiev; S. Gevorgian; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AlN; FBAR; FPAR; CMP; SOI; Nickel Silicide; Wafer Bonding; Electronics; Elektronik; Elektronik; Electronics;

   Abstract : In recent years there has been a huge increase in the growth of communication systems such as mobile phones, wireless local area networks (WLAN), satellite navigation and various other forms of wireless data communication that have made analogue frequency control a key issue. The increase in frequency spectrum crowding and the increase of frequency into microwave region, along with the need for minimisation and capacity improvement, has shown the need for the development of high performance, miniature, on-chip filters operating in the low to medium GHz frequency range. READ MORE