Search
Now showing items 1-10 of 11
Dark-pulse propagation in optical fibers
(American Physical Society, 1988-01-04)
We report measurements of the reshaping of 0.3-psec dark pulses due to their passage through 10 m of single-mode optical fiber. The measurements were performed as a function of intensity and the observed strong reshaping ...
Influence of storage at freezing and subsequent refrigeration temperatures on B-galactosidase activity of Lactobacillus acidophilus
(American Society for Microbiology, 1988-04)
The ability of three strains of Lactobacillus acidophilus to survive and retain β-galactosidase activity during storage in liquid nitrogen at −196°C and during subsequent storage in milk at 5°C was tested. The level of ...
Point source terahertz optics
(AIP Publishing, 1988-10-17)
We demonstrate an ultrafast 10 micro-m sized, electric dipole source of terahertz radiation closely coupled to a 1 cm spherical mirror. This optical approach has the advantages of subpicosecond response times with essentially ...
Autoxidation of tetralin in water catalysed by cobalt(ii)-pyridine complexes bound to polymer colloids
(Royal Society of Chemistry, 1988)
Cobalt(ii)-pyridine complexes bound to 60 nm diameter latex copolymers of styrene, divinylbenzene, and either acrylic or methacrylic acid catalyse autoxidation of tetralin in water faster than cobalt(ii)-pyridine complexes ...
Contractible open 3-manifolds which are not covering spaces
(Elsevier, 1988)
Monoclonal antibodies to Pasteurella haemolytica serotype 1 lipopolysaccharide: Demonstration of antigenic similarities among several serotypes
(American Society for Microbiology, 1988-05)
Murine monoclonal antibodies (MAbs) were produced which were specific for Pasteurella haemolytica serotype 1 lipopolysaccharide (LPS). The MAbs also reacted with LPS present in a partially purified antigen derived from a ...
Capacitance free generation and detection of subpicosecond electrical pulses on coplanar transmission lines
(Institute of Electrical and Electronics Engineers, 1988-02)
Based on a reanalysis of previous work and new experimental measurements, we conclude that the parasitic capacitance at the generation site is negligible for sliding contact excitation of small dimension coplanar transmission ...
Expression of the recA gene of Pseudomonas aeruginosa PAO is inducible by DNA-damaging agents
(American Society for Microbiology, 1988-05)
Western (immunoblot) analysis using Escherichia coli anti-RecA antiserum revealed that expression of the RecA protein of Pseudomonas aeruginosa PAO is induced upon exposure of the bacterium to UV irradiation or norfloxacin, ...
Measurement of ultrafast hot-carrier relaxation in silicon by thin-film-enhanced, time-resolved reflectivity
(AIP Publishing, 1988-01-04)
Time-resolved reflectivity measurements within ~100 fs resolution have revealed an initial 350 fs relaxation time in silicon, believed to be the time it takes hot, photoinjected carriers to relax to the band edge. The ...
Characterization of the Pseudomonas aeruginosa recA gene: The Les- phenotype
(American Society for Microbiology, 1988-02)
The Les- phenotype (lysogeny establishment deficient) is a pleiotropic effect of the lesB908 mutation of Pseudomonas aeruginosa PAO. lesB908-containing strains are also (i) deficient in general recombination, (ii) sensitive ...