Lethal effects of thermal neutrons were compared with those of 60Co-ƒÁ-rays on the two types of Amoeba proteus. D37 doses against ƒÁ-rays were 2.5 •~ 105 (M-type) and 7.2 •~ 105 rads (P type), and those for thermal neutrons were 9.1 and 11.7 •~ 1013 n. cm-2 (total flux) respectively. Additions of AET, D2O or boron failed to increase or decrease the lethal effects of thermal neutrons. The lethal...

A laser photolysis–long path laser absorption (LP-LPLA) experiment has been used to determine the rate constants for H-atom abstraction reactions of the dichloride radical anion (Cl2) in aqueous solution. From direct measurements of the decay of Cl2 in the presence of different reactants at pH 5 4 and I 5 0.1 M the following rate constants at T 5 298 K were derived: methanol, (5.1 6 0.3) · 104 ...

We demonstrate monolithic 160-µm-diameter rare-earth-doped microring lasers using silicon-compatible methods. Pump light injection and laser output coupling are achieved via an integrated silicon nitride waveguide. We measure internal quality factors of up to 3.8 × 105 at 980 nm and 5.7 × 105 at 1550 nm in undoped microrings. In erbium- and ytterbium-doped microrings we observe single-mode 1.5-...

This letter presents an ultra low-jitter clock generator that employs an area-efficient LC-VCO. In order to fully utilize the area of the on-chip inductor, the loop filter of a phase locked loop (PLL) is located underneath the inductor. A prototype chip implemented in 0.13 μm CMOS process achieves 105 MHz to 225 MHz of clock frequency while consuming 4.2 mW from 1.2 V supply. The measured rms j...

Monoclonal (MAb 362.50) and polyclonal (anti-gp 105-2) antibodies have been used to examine the expression by transplantable (THC) and primary (PHC) hepatocellular carcinomas of a 105 kd rat hepatocyte cell adhesion molecule designated cell-CAM 105. Two-dimensional gel analysis of components immunoprecipitated with MAb 362.50 or anti-gp 105-2 antibodies from detergent extracts of cells surface ...

Using archived samples, we assessed the diagnostic capacity of a rapid immunochromatographic test (ICT) for the detection of Orientia tsutsugamushi IgM and total antibodies to aid with the diagnosis of acute scrub typhus infection in febrile patients in Laos. The sensitivity and the specificity of the ICT for the detection of IgM were 96.8% (121/125 samples; 95% confidence interval [CI], 92.1 t...