We show how to find a complete set of necessary and sufficient conditions that solve the fixed-parameter local congruence problem of immersions in G-spaces, whether homogeneous or not, provided that a certain k order jet bundle over the G-space admits a G-invariant local coframe field of constant structure. As a corollary, we note that the differential order of a minimal complete set of congrue...

In this note we study isometric immersions of Riemannian manifolds with positive Ricci curvature into an Euclidean space.

Several years ago (1, 2) we conducted studies attempting to deliberately produce tinea pedis by immersing the healthy (fungus-free) feet of volunteer subjects in suspensions of living dermatophytes for 30 minutes. The source of these fungi was either fragmented cultures of dermatophytes or the foot bath water of persons with myeologically proven, clinically active tinea pedis. Among 68 subjects...

An improved histochemical method for demonstrating tyrosinase activity has been described which utilizes small amounts of dopa to shorten the induction period for the enzymatic oxidation of tyrosine. This method is a rapid, reproducible and specific way to localize tyrosinase in tissue sections. With this method tyrosinase activity was demonstrated in normal and neoplastic melanocytes and in no...

Knowledge about the structure and organization of terrorist networks is important for both terrorism investigation and the development of effective strategies to prevent terrorists’ attacks. However, except for network visualization, terrorist network analysis remains primarily a manual process. Existing tools do not provide advanced structural analysis techniques that allow extraction of netwo...

This paper demonstrates the promise of augmenting interactive visualizations with semi-supervised machine learning techniques to improve the discovery of significant associations and insight in the search and analysis of textual information. More specifically, we have developed a system–called Gryffin–that hosts a unique collection of techniques that facilitate individualized investigative sear...

Spreadsheet cells contain data but also may contain formulas that refer to data from other cells, perform operations on them, and render the results directly to show it to the user. In order to understand the structure of spreadsheets, one needs to understand the formulas that control cell-to-cell dataflow. Understanding this cell-to-cell inter-relation or dependence tracing is easier done in v...