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Effects of disorder on the in-plane density of states of ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ are investigated by planar tunneling spectroscopy. Low-fluence 1-MeV ${\mathrm{He}}^{+}$ irradiation reduces the ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ ${T}_{c}$ and mean-free path without altering the junction quality. As the dirty limit is approached, the zero-bias conductance peak (ZBCP) disappears, as expected for a quasiparticle Andreev bound state. Thus, the quasiparticle scattering rate may be determined by the ZBCP magnitude. This rate is a direct measure of the pair-breaking strength and accounts for the ${T}_{c}$ suppression.

The position of controlled hypotension in neurosurgery is reviewed including both the new and old techniques and the drugs used. A special emphasis is placed on our use of sodium Nitroprusside which allows short lived, but very significant lowering of the blood pressure. Using this technique it was possbile in three cases where rebleeding of the aneurysm occurred at operation and in a further six cases of considerable arterial haemorrhage, to, "dry" the field of operation i.e. reduce the bleeding to such an extent that satisfactory orientation and quick and accurate handling of the emergency could be achieved.

The amount and sort of analgetics given postoperatively in 1000 patients who had major heart or lung surgery was statistically analysed. A critical review of comparable literature revealed that all about analgetics usually is estimated. New and more objective criteria were found.

Es wurden Veranderungen der Sauerstoff- und Kohlensaurepartialdrucke im Blut des Bulbus venae jugularis wahrend der operativen Totalexstirpation cerebraler arteriovenoser Angiome untersucht. Dazu legten die Verfasser unter Rontgenkontrolle Katheter in die A. femoralis, V. cava superior und auf der Seite der Gefasmisbildung in die V. jugularis interna ein.

Bei neurochirurgischen Patienten ist die Langzeitbeatmung ein wesentlicher Bestandteil der Intensivbehandlung.

The amount and sort of analgetics given postoperatively in 1000 patients who had major heart or lung surgery was statistically analysed. A critical review of comparable literature revealed that all about analgetics usually is estimated. New and more objective criteria were found.

Das die Kenntnis der Wirkung einzelner Anaesthetica auf den intracraniellen Druck von groser Wichtigkeit ist, beweist die grose Zahl von Arbeiten uber dieses Thema. Hingewiesen sei nur auf MC DOWALL, ADAMS und ZATTONI.

The question of the demarcation of responsibility between doctor and nursing personnel in the general sector of nursing can now be accepted as having been resolved in the following form: Devolving on the doctor are all diagnostic and therapeutic decisions regarding the patient. Devolving on the nursing personnel, as the other hand, are the duties of nursing and tending to the patient.

Kreislaufuntersuchungen wahrend Ketamin-Mononarkosen und wahrend verschiedener Inhalationsnarkosen, bei denen Ketamin zur Einleitung verwendet wurde, sind von mehreren Untersuchern sowohl im Tierexperiment als auch beim Menschen vorgenommen worden (Chen, Corssen, Dowdy, Hensel, Kreuscher, Langrehr, Lennartz, Szappanyos u.a.).