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The silicon isotope composition of biogenic silica (δ30SiBSi) in the ocean is a function of the δ30Si of the available dissolved Si (DSi; H2SiO4), the degree of utilisation of the available DSi, and, for some organisms, the concentration of DSi. This makes δ30SiBSi in sediment archives a promising proxy for past DSi concentrations and utilisation. At steady-state, mean δ30SiBSi must equal a weight
Abstract in UndeterminedExtreme down-scaling of nanoelectronic devices by top-down fabrication methods may be hindered by several obstacles, such as the cost for patterning and processing, or inferior device performance due to process-induced damage. In this presentation I will present a bottom-up approach for nanometer-scale device fabrication, based on seeded growth of semiconductor nanowires, u
The present paper argues that the prolonged insurgency in southern Thailand has gone through changes since the outbreak of major violence in 2004. An analysis of the dynamics of the conflict, and its relation to economic and social factors, can improve our understanding of the drivers of conflict. A key finding is that the bulk of the violence has shifted from poor rural districts to more affluent
Ingen enskild person har utövat ett så djupgående inflytande som Henric Schartau (1757–1825) på kyrkolivet i södra och västra Sverige under 1800- och 1900-talen. Han gav själv inte ut sina skrifter, men av ingen annan svensk teologisk författare torde så mycket ha publicerats. Hans teologiska och kyrkliga ståndpunkt präglades av en ibland ensidig koncentration på det enda nödvändiga. Han gav namn
Abstract not available
Quantitative in-cylinder measurements of soot volume fraction in a single-cylinder HSDI Diesel engine, based on a VOLVO D5, has been carried out using the laser-induced incandescence (LII) technique using laser excitation at 1064 nm and an ICCD camera with prompt gate detection. Quantitative data was obtained by relating the LII signal response from the engine to that from a calibration flame. The
