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FL 1039 is a novel β-lactam antibiotic, being a 6 β-amidinopenicillanic acid derivative. This compound was compared with pivampicillin and placebo in patients with E. coli, Klebsiella-Enterobacter, and Proteus-Providencia bacteriuria following prostatectomy. In a double-blind trial 59 patients received either FL 1039 or pivampicillin or placebo orally for a period of 12 days. After the course. 16 of 20 patients from the FL 1039 group and II of 20 from the pivampicillin group had a bacterial count less than I05 organisms per milliliter of urine. Placebo had no effect. Four weeks later no difference in cure rates between the three groups could be demonstrated. No development of resistance was observed. No toxic effects were noted. FL 1039 is a promising drug in bacteriuria caused by Enterobacteriaceae.

The annihilation characteristics of positrons in aluminium have been studied for the distinct cases of annihilation in the perfect lattice and annihilation after trapping at vacancies or dislocations. A controlled production of vacancies and dislocation in single crystal aluminium specimens was achieved with a quenching and annealing procedure. The annihilation lifetime in the perfect lattice is 166+or-2 ps, whereas it is 246+or-4 ps for positrons trapped in vacancies and 250+or-30 ps for positrons trapped in dislocations. The mean lifetime is found to increase with increasing dislocation density, but saturation is not attained with the dislocation densities obtainable by the quenching process. The trapping probabilities are (0.23+or-0.05)*1015 s-1 for vacancies and (0.08+or-0.05)*1015 s-1 for dislocations.

In what way should the high school mathematics curriculum be revised because of man's increased interest in outer space?

The method described is based on treatment of the finely ground ore sample with concentrated nitric acid, removal of the soluble salts and finally extraction of the residue by hydrogen chloride, containing some chlorine. The gold in the last solution is precipitated together with mercury sulphide and then determined dokimastically. Results are satisfactory.

Bei 90 mannlichen Kranken wurden vor und nach einem lungenchirurgischen Eingriff eine Anzahl spirometrischer und blutgasanalytischer Mesgrosen bestimmt.