The dielectronic satellite spectral lines, on the long-wavelength side of the hydrogenic Si XIV Lyman-? line, have been observed in the space-resolved spectra from laser-imploded glass microballoons. In the electron density ...

Excitation of DNA in neutral solution either with short-duration, intense pulses of excimer laser (248 nm) radiation or with low intensity red-ligh (633 nm) sensitisation by methylene blue causes cleavage of the DNA backbone ...

A retrospective study was conducted to assess the association of alpha-gliadin antibodies with intraepithelial lymphocyte counts. Twelve subjects with apparently normal small intestinal histology and raised alpha-gliadin ...

Transcription of the mer genes of plasmid R100 is regulated by the product of the merR gene. The merR gene negatively regulates its own expression and also controls the transcription of the merTCA operon both negatively ...

The ability of seeds and other anhydrous plant forms to survive the withdrawal of water must involve a mechanism for protecting the integrity of cellular membranes. Evidence from animal systems implicates sugars as protective ...

An improved technique for the detection of alpha-gliadin sensitised mononuclear cells in the peripheral blood of untreated coeliac patients is described. This method is a modification of the direct LMIF assay, and involves ...

The inducible nonenzymatic chloramphenicol resistance (Cmr) determinant of the IncP plasmid R26 was cloned on a 1,900-base-pair restriction endonuclease HindIII fragment. Transposon Tn5 mutagenesis revealed that at least ...

Codon usage patterns in the slime mould Dictyostelium discoideum have been re-examined (a total of 58 genes have been analysed). Considering the extreme A + T-richness of this genome (G + C = 22%), there is a surprising ...