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Levi-flat invariant sets of holomorphic symplectic mappings
(Association des Annales de l'Institut Fourier, 2001)
We classify four families of Levi-flat sets which are defined by quadratic polynomials and invariant under certain linear holomorphic symplectic maps. The normalization of Levi- flat real analytic sets is studied through ...
Optical tunneling of single-cycle terahertz bandwidth pulses
(American Physical Society, 2001-08-27)
We report time-domain measurements with subpicosecond resolution of optical tunneling of terahertz electromagnetic pulses undergoing frustrated total internal reflection. Measurements of the transmitted electromagnetic ...
Catastrophic wildfire and number of populations as factors influencing risk of extinction for Gila trout (Oncorhynchus gilae)
(Monte L. Bean Life Science Museau, 2001-04)
We used the computer program RAMAS to explore the sensitivity of an extinction-risk model for the Gila trout (Oncorhynchus gilae) to management of wildfires and number of populations of the species. The Gila trout is an ...
Polariton and free-exciton-like photoluminescence in ZnO
(AIP Publishing, 2001-12-03)
An unusual photoluminescence line X has been observed in ZnO at an energy between that of the common donor-bound excitons (DBEs) and the free excitons (FEs). In the presence of a high carrier concentration, induced by a ...
Dieuropium(III) silicodimonophosphatediphosphate
(International Union of Crystallography, 2001-01-30)
A new europium(III) silicophosphate, whose formula may be considered to be Eu2Si(PO4)2(P2O7), has been found to consist of phosphosilicate chains with Si-O-P-O-P-O-Si backbones extending in the a direction. The P2O7 group ...
Avian response to landscape change in fragmented southern Great Plains grasslands
(Ecological Society of America, 2001)
We examined the dynamics of avian communities associated with fragmented grasslands in Oklahoma, USA, using long-term (1965-1995) raw (stop-level) data from the Breeding Bird Survey (BBS). Aerial photography was used to ...
Time resolved synthetic aperture terahertz impulse imaging
(AIP Publishing, 2001-12-31)
Using a well characterized terahertz (THz) impulse ranging system we demonstrate broad bandwidth imaging at THz frequencies using an inverse synthetic aperture deconvolution technique. The system demonstrates millimeter ...
Norms of products and factors polynomials
(2001-01-19)
We study inequalities connecting a product of uniform norms of polynomials with the norm of their product. Generalizing Gel’fond-Mahler inequality for the unit disk and Kneser-Borwein inequality for the segment [−1,1], we ...
Quasioptic dielectric tetrahertz cavity: Coupled through optical tunneling
(AIP Publishing, 2001-04-23)
We report the observation of the well defined oscillation of a picosecond tetrahertz (ps THz) pulse within a dielectric concentric cy1indrica1 cavity, which is coupled to an incoming focused beam of ps THz pulses by the ...
Quantification of recA gene expression as an indicator of repair potential in marine bacterioplankton communities of Antarctica
(Inter Research, 2001-03-28)
Marine bacteria in surface waters must cope daily with the damaging effects of exposure to solar radiation (containing both UV-A and UV-B wavelengths), which produces lesions in their DNA. As the stratospheric ozone layer ...