In this issue of Cell, a study by Valerie Mizrahi and her colleagues (Boshoff et al., 2003) suggests that a putative error-prone DNA polymerase encoded by the dnaE2 gene of Mycobacterium tuberculosis may bypass certain types of DNA bas...

The devise is described which permits the photographing of hydroxyl emission spectra within exposures beginning with 0.5 min. Relationships between rotational temperatures and the intensities of hydroxyl bands 9-5 and 4-1 are given, as ...

1.1. A case of acute intestinal obstruction fifteen years after a Webster-Baldy opera- tion for retroversion of the uterus is reported.2.2. The cause of the obstruction was determined to be a failure of closure of the aperture in the br...

A one-pot deamination of a wide variety of substituted anilines is described. The process involves a diazotization-dediazotization utilizing acetic acid, sodium nitrite, and sodium bisulfite- inexpensive, ‘green’ reagents. The proce...

A microwave cavity spectrometer of the Stark-dc-voltage sweep type with a fixed resonance frequency in the X-band region is described. The spectrometer was applied to the study of the Zeeman effect in molecules as well as to pollutant m...

V(D)J recombination is of fundamental Buy Ghd V importance to the generation of diverse antigen receptor repertoires. We review our current understanding of the V(D)J recombination reaction and how it is regulated during lymphocyte deve...

The first results are presented of a program aimed at the study of the Moon's atmosphere in the Na lines carried out with the Asiago-Cima Ekar echelle spectrograph. The observations obtained in July 1993 show the feasibility of the prog...

Storage of banana fruits at low temperature was unsuccessful due to chilling-injury. Titratable acidity and respiration of banana fruits remained lower at 5°C than at room temperature and accompanied the prevention of ripening and chil...

The effect of traces of hydrogen sulphide and of sulphur dioxide on the oxidation of methane over supported precious metals has been examined. Both gases inhibited catalytic oxidation over Pd and Rh, apparently as a result of sulphate f...

This note discusses an extension to the score test statistics for overdispersion in Poisson and binomial regression models [Dean, C.B., 1992. Testing for overdispersion in Poisson and binomial regression models. J. Amer. Statist. Assoc....

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