BURNS FROM CELLULOID.

From ‘ Celluloid Comrades ’ to ‘ Digital Video

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...

Burns from orthodontic pliers.

A case of burn injury from orthodontic pliers resulting in a partial-thickness burn is presented. A brief description of the injury, a review of the pertinent literature, and general guidelines for out-patient management of such burns are also presented.

Macular Burns from Nonmedical Lasers

Laser devices are widely used for medical, military, industrial and entertainment purposes. This extensive and unregulated use of lasers can cause a variety of maculopathies that can result in permanent vision loss. Uncontrolled and inappropriate use of laser instruments should be prevented with strict rules. We strongly emphasize the importance of changing the general misperception that lasers...

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...