[Attitude of outpatient clinic physicians to mass screening of the population].

More than one-third of out-patient physicians (36.8%) do not believe in the possibility of realizing the programme of overall dispensarization. 32.

[Changes in intracranial pressure and impedance in the presence of air and gad embolism].

In biophysical models and in acute experiments on animals, the air was administered in measured volumes into the artificial blood flow and into the common carotid artery in dogs. When air bubbles get into the electric field between electrodes, specific changes of impedance depending on the bubbles size could be recorded. A lot of small bubbles sharply increased the impedance according to their total volume.