A nonzero dispersion shifted fiber design based on hole-assisted lightguide fiber is presented. The proposed fiber has low dispersion slope around -0.01 ps/nm(2)-km and small negative dispersion values over the wavelength range from 1530 to 1620 nm. It can be used as a transmission medium for a long-haul dense wavelength-division-multiplexed system.

Mass inflow in barred galaxies has been invoked to account for a wide variety of phenomena, but until now direct evidence for inflow has been lacking. We present Fabry-Perot Hα observations of the barred spiral galaxy NGC 1530 from which we determine velocities of the ionized gas for the entire region swept by the bar. We compare the velocity field to models of gas flow in barred spirals and sh...

Christian Peters, Apologia Confessionis Augustanae. Untersuchungen zur Textgeschichte einer lutherischen Bekenntnisschrift (1530-1584) (Calwer Theologische Monographien, Reihe B, Systematische Theologie und Kirchengeschichte, Bd. 15), Stuttgart Verlag) 1997. 664 u. XLIX S.

A reduction in the survival of Salmonella typhimurium TA 1530 was observed when the bacteria were incubated with aflatoxin B¡,rat liver microsomes, and a reduced nicotinamide adenine dinucleotide phosphate-generating system. The lethality appeared to depend on the formation of a metabolite of aflatoxin B] by a mixed-function oxygenase system. The killing was very rapid; only 1% of the bacteria...

Three ruminally cannulated and multicatheterised lactating dairy cows were used to investigate the effect of different supplement strategies to fresh clover grass on urea and short-chain fatty acid (SCFA) metabolism in a zero-grazing experiment with 24-h blood and ruminal samplings. Fresh clover grass was cut every morning and offered from 0800 to 1500 h. Maize silage was fed at 1530 h. The thr...

A reduction in the survival of Salmonella typhimurium TA 1530 was observed when the bacteria were incubated with aflatoxin B¡,rat liver microsomes, and a reduced nicotinamide adenine dinucleotide phosphate-generating system. The lethality appeared to depend on the formation of a metabolite of aflatoxin B] by a mixed-function oxygenase system. The killing was very rapid; only 1% of the bacteria...