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Spatial autocorrelation and dispersal limitation in freshwater organisms
Oecologia, 2008Dispersal can limit the ranges of species and the diversity of communities. Despite its importance, little is known about its role in freshwater habitats and its relation to habitat type (lentic vs. lotic), especially for organisms with cryptic dispersal methods such as plankton.
Jonathan B, Shurin +2 more
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Fourth-order dispersion-limited solitary pulses
Optics Letters, 1994We analyze the performance of a Ti:sapphire self-mode-locked laser with near-zero second- and third-order dispersion. Our simulations show that, in the presence of fourth-order dispersion, solitary laser pulses can be supported within a wide parameter range, close to the experimental values of these parameters.
I P, Christov +4 more
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A discussion of limitations on dispersant application
Oil and Chemical Pollution, 1988Dispersants have been used with mixed success since the Torrey Canyon incident in 1967. Although in recent years the use of mechanical recovery methods has been increasing, dispersants still continue to be the main method ofpollution control in many countries.
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Limits on the performance of dispersive thin-film stacks
Applied Optics, 2005Dispersive thin-film stacks are interesting as compact, cost-effective devices for temporal dispersion compensation and wavelength multiplexing. Their performance depends on the total group delay or spatial shift that can be achieved. For general multilayer stacks, no analytic model exists relating the performance to the stack parameters such as the ...
Gerken, M., Miller, D. A.
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Dispersion in the radii of gyration of diffusion-limited aggregates
Physical Review A, 1992Using a Gaussian stochastic model for configurational size fluctuations, we show that diffusion-limited aggregates asymptotically attain monodispersity (variance→0) in their radii of gyration (R g ) in three dimensions and above. The decay of the variance in R g as function of the cluster mass is found to be the fastest in Euclidean dimension d c =2 ...
, Mayya, , Narasimhan
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Comment on "Dispersal Limitations Matter for Microbial Morphospecies"
Science, 2007Telford et al . (Brevia, 19 May 2006, p. 1015) reported that freshwater diatoms exhibit regional-scale richness-pH relationships that depend substantially on regional habitat availability. On this basis, the authors argued that, despite their microscopic size, diatoms are not ubiquitously dispersed. Here, I describe
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Bandwidth limitations and dispersion in optical stellar interferometry
Applied Optics, 1996The fringe visibility measured by a stellar interferometer may be degraded if the interferometer uses an air delay line without compensating for longitudinal dispersion. Whereas in such circumstances simultaneous observations across the visible spectrum are shown to be impracticable at baselines as short as 10 m, it is shown possible to detect 95% of ...
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[Usefulness and the limitation of QT dispersion].
Masui. The Japanese journal of anesthesiology, 2009The prolongation of QT interval and the increase of QT dispersion in the electrocardiogram are closely related with torsade de pointes and useful for the assessment of the risk of the anesthetic drugs and ischemic heart diseases.
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