Zur Chemie des Polyporus frondosus Fl. Dan

Ohne ZusammenfassungHerrn Hofrat Dr. K. Toldt, der die Güte hatte, uns einige Exemplare des als Speise geschätzten Pilzes zur Verfügung zu stellen, gestatten wir uns, an dieser Stelle den verbindlichsten Dank zum Ausdrucke zu bringen.     

Zur Kenntnis der Überwallungsharze

Ohne ZusammenfassungHerrn A. Landsiedl, der uns bei dieser Arbeit unterstützte, sagen wir den besten Dank.     

Measurement of np elastic scattering at high energies and very small momentum transfers

The np elastic differential cross section has been measured for incident neutron momenta 100–400 GeV/c in the |t| range 6 · 10^?6 ? 5 · 10^?1 (GeV/c)². The np data of this experiment provide a first direct measurement of the hadronic amplitude for |t| < 10^?2 (GeV/c)², which is consistent with the extrapolations from higher |t| values. Our data for |t| < 10^?4 (GeV/c)² are consistent with a rise which can be attributed to Schwinger scattering, caused by the interaction of the neutron magnetic moment with the proton.     

SINDO1 study of the photoreaction of tetramethylene sulfone

The mechanism of the photoreaction of tetramethylene sulfone (TMSO₂) was investigated by the semiempirical molecular orbital (MO) method SINDO1. The relevant low-lying potential energy surfaces, which were calculated with limited configuration interaction (CI), were studied by optimizing intermediates and transition structures and by introducing linear interpolations between these stationary points. The main initial reaction step for all important products is an α cleavage of one C? S bond. This leads to an intermediate that can be classified as an excited singlet diradical. Its electronic structure is described with a two-electron, three-orbital model. Starting from this initially generated intermediate, the reaction branches into several pathways leading to various products. Feasible reaction pathways were established for all important products consistent with experiments. © 1995 by John Wiley & Sons, Inc.     

Ein Primzahlkriterium nach Mann und Shanks

Ohne ZusammenfassungHerrn Professor Dr.Theodor Schneider zum 65. Geburtstag     

Transition radiation detector for relativistic particles at accelerator energies

Transition radiation (TR) has been investigated by using the arithmetic mean and the geometric mean of the pulses from 10 multiwire proportional chambers. The discrimination factor for different kinds of particles has been determined. Also the dependence of the intensity of TR on the Lorentz factor γ has been measured and compared with theoretical calculations.