The Celluloid Divide

The Preparation and Uses of Celluloid Splints

Alpha Particle Track Detection with Celluloid Films

The solid state track detector of celluloid films (cellulose nitrate+camphor 25% an weight) using etching technique is suitable for low energy alpha particle detection . The critical rate of energy loss for track formation in celluloid films is determined as 1 .3 MeV/mg•Ecm2. Irradiated samples are etched in NaOH (6 N) solution at 46•Ž for 10 minutes . The etched tracks are observed under a vie...

From ‘ Celluloid Comrades ’ to ‘ Digital Video

A Celluloid Capsule for Measuring Venous Pressures.

The methods of determining human venous pressure directly by venous puncture and indirectly in various ways have been reviewed by Eyster, 1926, 1929. Among the indirect methods that of applying a capsule to a superficial vein has been most used. The air within the capsule is raised to a pressure sufficient to collapse the vein, a pressure therefore estimated approximately equal to the blood pre...

Digital Divide, Social Divide, Paradigmatic Divide

The digital divide is nothing else than the reflection of the social divide in the digital world. The use of ICT for human development does offer opportunities to reduce the social divide for individual beings or communities; yet there exists a series of obstacles to overcome. The very existence of an infrastructure for connectivity is only the first obstacle, although it often receives an excl...