Physics Determinations

Neutron Star Mass Determinations

I review attempts made to determine the properties of neutron stars. The focus is on the maximum mass that a neutron star can have, or, conversely, the minimum mass required for the formation of a black hole. There appears to be only one neutron star for which there is strong evidence that its mass is above the canonical 1.4M⊙, viz., Vela X-1, for which a mass close to 1.9M⊙ is found. Prospects...

Induction of Condensed Determinations

In this paper we suggest determinations as a representation of knowledge that should be easy to understand. We brieey review determinations, which can be displayed in a tabular format, and their use in prediction , which involves a simple matching process. We describe ConDet, an algorithm that uses feature selection to construct determinations from training data, augmented by a condensation pro...

Comparative Microphotometric Determinations of

General studies (7, 12—14)and cytological stud ies (8, 9) on fern prothallial tumors indicate that these materials present rather unique new ap proaches to the study of tumorous growth in plants. Both the normal and the abnormal growth forms are grown in sterile culture on synthetic media, under careful control of environmental conditions. The abnormal growth forms isolated from ga metophyte ...

High-throughput viscosity determinations.

A new high-throughput viscosimeter device was designed, built, and tested allowing measurement of the viscosity of 100 different solutions in a single experiment using the falling sphere approach. Using the corrected Stokes' law, viscosities obtained by the HT device were compared to viscosities of the same solutions obtained on a conventional viscosimeter and showed excellent correlation. The ...

Lipid and Lipoprotein Determinations