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Now showing items 51-60 of 90
Putting things in even better order: the advantages of canonical correspondence analysis
(Ecological Society of America, 1993)
Canonical Correspondence Analysis (CCA) is quickly becoming the most widely used gradient analysis technique in ecology. The CCA algorithm is based upon Correspondence Analysis (CA), an indirect gradient analysis (ordination) ...
Efficient generation of 380 fs pulses of THz radiation by ultrafast laser pulse excitation of a biased metal-semiconductor interface
(AIP Publishing, 1991-01-21)
We have demonstrated a new method of generating pulses of freely propagating THz electromagnetic radiation. The resulting 380 fs pulses are the shortest directly measured THz pulses in free space to date and are more ...
Nature of conduction in doped silicon
(American Physical Society, 1997-02-10)
Via ultrafast optoelectronic THz techniques, we are able to test alternative theories of conduction by precisely measuring the complex conductivity of doped silicon from low frequencies to frequencies higher than the plasma ...
High-performance liquid chromatographic determination of SAZ-VII-22, a novel antiarrhythmic agent, in dog plasma and urine
(Japan Society for Analytical Chemistry, 1993-06)
SAZ-VII-22 [3-(4-chlorobenzoyl)-7-isopropyl-3,7-diazabicyclo[3.3.1]nonane, (A)](Fig. 1) has been shown to have effective antiarrhythmic properties with modest class-III antiarrhythmic activity.1,2 The basis of some ...
Continuous culture model to examine factors that affect transduction among Pseudomonas aeruginosa strains in freshwater environments
(American Society for Microbiology, 1995-09)
Transduction among Pseudomonas aeruginosa strains was observed in continuous cultures operated under environmentally relevant generation times, cell densities, and phage-to-bacterium ratios, suggesting its importance as a ...
Survey of alkyl methacrylate latexes as aqueous catalytic media
(American Chemical Society, 1999-11-02)
Cationic polymer latexes serve as catalytic media for the hydrolysis of p-nitrophenyl esters by providing a more lipophilic environment into which these compounds can partition from the aqueous phase. The latex quaternary ...
Identification of the inducing agent of the 2,4-dichlorophenoxyacetic acid pathway encoded by plasmid pJP4
(American Society for Microbiology, 1997-01)
The inducing agent of the 2,4-dichlorophenoxyacetic acid (2,4-D) pathway of Alcaligenes eutrophus JMP134 (pJP4) was determined through the analysis of promoterless lacZ transcriptional fusions with tfd structural genes. ...
Flea-borne rickettsioses: Ecologic considerations
(Centers for Disease Control and Prevention (CDC), 1997-07)
Ecologic and economic factors, as well as changes in human behavior, have resulted in the emergence of new and the reemergence of existing but forgotten infectious diseases during the past 20 years. Flea-borne disease ...
Purification and partial characterization of the OmpA family of proteins of Pasteurella haemolytica
(American Society for Microbiology, 1997-01)
This study was conducted to partially characterize and identify the purity of two major outer membrane proteins (OMPs) (with molecular weights of 32,000 and 35,000 [32K and 35K, respectively]) of Pasteurella haemolytica. ...
Cloning and expression of genes required for coronamic acid (2-ethyl-1-aminocyclopropane 1-carboxylic acid), an intermediate in the biosynthesis of the phytotoxin coronatine
(American Society for Microbiology, 1994-08)
Coronamic acid (CMA; 2-ethyl-1-aminocyclopropane 1-carboxylic acid) is an intermediate in the biosynthesis of coronatine (COR), a chlorosis-inducing phytotoxin produced by Pseudomonas syringae pv. glycinea PG4180. Tn5 ...