Abstract: A method of, and apparatus for, slicing a modulated input signal is disclosed. The method comprises: generating at least one slice threshold level (20); comparing (3) the magnitude of the input signal (1) with the at least one threshold level to produce a corresponding sliced signal having a first magnitude if the input signal is greater than the threshold level and having a second magnitude if the input signal is less than the threshold level. The method further comprises detecting errors (5) in the sliced signal and producing a corresponding error signal; and setting the threshold level in response to the error signal.

Abstract: Methods of forming joints between bars of materials such as mild steel are disclosed. In one method, the bars are arranged to lie in generally parallel planes but with their axes at an angle to one another, and a plastically-deformable tubular stub of round or square cross-section is disposed between the bars with its axis substantially intersecting the axes of the bars, which are then pressed together to deform the stub partially around the two bars. In a second method, a bar is arranged in a T-formation with a hollow member, two opposed regions at the end of the tubular member are deformed inwardly and back along the member axis, and the bar is then pressed into the groove so-formed at the end of the member, to deform the end portion partially around the bar. Heat may be used, in the former case on the stub and in the latter case on the tubular member, so that after completion of the joint the heated stub or tubular member will cool and contract, firmly to grip the or each bar.

Abstract: A pharmaceutical composition adapted for administration to a human by injection which composition comprises an aqueous solution containing sodium amoxycillin and tri-sodium phosphate, the weight ratio of sodium amoxycillin present to the tri-sodium phosphate present being from 8:1 to 50:1.