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Development of a rickettsia isolated from an aborted bovine fetus
(American Society for Microbiology, 1990-10)
An obligate intracellular rickettsial organism isolated from an aborted bovine fetus was studied in bovine turbinate and mouse macrophage cell cultures with light and electron microscopy. Development of the organism was ...
Trichloroethylene degradation by two independent aromatic-degrading pathways in Alcaligenes eutrophus JMP134
(American Society for Microbiology, 1990-04)
The bacterium Alcaligenes eutrophus JMP134(pJP4) degrades trichloroethylene (TCE) by a chromosomal phenol-dependent pathway and by the plasmid-encoded 2,4-dichlorophenoxyacetic acid pathway. The two pathways were independent ...
THz time-domain spectroscopy of high Tc substrates
(AIP Publishing, 1990-09-03)
Using the method of time-domain spectroscopy, we have measured the absorption and dispersion from 0.2 to 2 THz of the high Tc substrates, magnesium oxide, yttria-stabilized zirconia (YSZ), and lanthanum aluminate. Our ...
Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors
(Optical Society of America, 1990-10)
Using the method of time-domain spectroscopy, we measure the far-infrared absorption and dispersion from 0.2 to 2 THz of the crystalline dielectrics sapphire and quartz, fused silica, and the semiconductors silicon, gallium, ...
Carrier dynamics of electrons and holes in moderately doped silicon
(American Physical Society, 1990-06-15)
A time-domain spectroscopic technique, based on the generation and detection of a collimated beam of subpicosecond broadband terahertz pulses, is used to measure the absorption and dispersion of n- and p-type silicon, with ...
Optical and electronic properties of doped silicon from 0.1 to 2 THz
(AIP Publishing, 1990-04-23)
Using a source of freely propagating subpicosecond pulses of THz radiation, we have measured the absorption and dispersion of both N- and P-type, 1 ohm-cm silicon from 0.1 to 2 THz. These results give the corresponding ...
Transduction of linked chromosomal genes between Pseudomonas aeruginosa strains during incubation in situ in a freshwater habitat
(American Society for Microbiology, 1990-01)
Both transduction of single chromosomal loci and cotransduction of closely linked loci were observed between lysogenic and nonlysogenic strains of Pseudomonas aeruginosa in a freshwater habitat. Transductants were recovered ...