7 Ergebnisse.

Die seit etwa 15 lahren sowohl im praktisch-klinischen Bereich als auch im anasthesiolo­ gischen Schrifttum deutlich zunehmende Bedeutung der ortlichen Schmerzausschaltung ist nicht zu fibersehen. In groBen Zentren werden 10 bis 15% aller operativen Eingriffe unter Regionalanasthesie vorgenommen, das Interesse hat liingst auch und gerade auf mittlere und kleinere Krankenhauser fibergegriffen, eine echte nRenaissance" der Lokal­ aniisthesie sch...

Conference reports of scientific meetings do not automatically justi­ fy publication. Our decision to publish the Proceedings of this Sym­ posium was based on a number of reasons. The subject of more or less grave adverse side-effects of oral contra­ ception is of major importance for all women. If the research insti­ tutions of Gynecology make fundamental mistakes in this subject, then the trust in them will diminish substantially. National i...

Reconstruction from projections has revolutionized radiology and has now become one of the most important tools of medical diagnosis The E. M. I. Scanner is one example. In this text, some fundamental theoretical and practical questions are resolved. Despite recent research activity in the area, the crucial subject of the uniqueness of the reconstruction and the effect of noise in the data posed some unsettled fundamental questions. In particu...

In many biological models it is necessary to allow the rates of change of the variables to depend on the past history, rather than only the current values, of the variables. The models may require discrete lags, with the use of delay-differential equations, or distributed lags, with the use of integro-differential equations. In these lecture notes I discuss the reasons for including lags, especially distributed lags, in biological models. Thes...

The seminar for which the proceedings are published here evolved from a cooperative research program on bilinear systems and applications to immunology at the Oregon State University and at the University of Rome. The topics include more general forms of variable structure systems which may be divided into categories of mathematical system theory, economic applications and biological applications. Throughout the seminar there was emphasis on t...

On sampling distributions.- The jackknife.- M-estimators.- Open avenues.

Bases des alg¿es de lie libres.- Bissections des mono¿s libres.- Factorisations des mono¿s libres et familles basiques des alg¿es de lie libres.