Metal forming progress since 2000

Progress in Infrared Photodetectors Since 2000

The first decade of the 21st-century has seen a rapid development in infrared photodetector technology. At the end of the last millennium there were two dominant IR systems, InSb- and HgCdTe-based detectors, which were well developed and available in commercial systems. While these two systems saw improvements over the last twelve years, their change has not nearly been as marked as that of the...

Progress since the Earth Summit

The Pacific was well represented at the Summit by over 100 delegates, including nine heads of government. The preceding 18 months of preparation involved a considerable commitment and investment by the region and its partners in sustainable development (Miles 1992). Now, 18 months down the track, it is necessary to ask how this level of international attention and political commitment is affect...

The Rural-Urban “Digital Divide” in New Zealand: Progress Since September 2000

Progress in year 2000

The concept of superfluidity applies to both macroscopic and microscopic objects. In both cases, there is no dissipation or drag force as long as the objects move with a velocity less than the so-called critical velocity. A moving macroscopic object creates a complicated flow field. Above a certain velocity, vortices are created. In contrast, the physics of moving impurities, which are microsco...

21 Progress in Renormalization Theory Since 1949

Julian Schwinger has given us a brilliant exposition of the renormalization ideas associated with his, Tomonaga's and Dyson's names. My task is to take the story up from the exciting days of 1949 to the present. As Schwinger has reminded us, even though renormalization and infinities are logically distinct, it was the persistent infinities encountered in field theories which brought the necessi...