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Biomedical subjects

R Jha

Publications and source records attributed to R Jha.

23 records · Page 2Linked to original sources

On the solid state of bone.

Photovoltaic effect (infrared and visible light) is observed in bone and its two major components, collagen and apatite, at room temperature. A dimunition in the magnitude of photovoltage is observed after exposure to ultraviolet light in all the cases. The drift mobility of the charge carriers is obtained by measuring I versus V relationships in sandwich samples and relating them to the permittivity of the medium. Lifetime of the injected carriers is measured in the usual way. The data are consistent with the hypothesis that the effects are due to protonic conduction phenomena.

Animals↗

Foreign body in the rectosigmoid colon.

A 55 years old male presented with history of assault and insertion of a "glass object" through his anus. Examination and investigation of the patient revealed a bottle in the rectosigmoid colon. The bottle was manipulated and delivered out transanally under general anesthesia.

Anesthesia, General↗

Wegener's vasculitis: diagnostic and therapeutic problems.

A case of Wegener's granulomatosis (WG) presenting with pulmonary manifestation which were initially suspected to be due to tuberculosis is being reported. Renal involvement appeared later. He developed complications of antitubercular treatment and of immunosuppression. The difficulties in distinguishing pulmonary manifestation of WG from tuberculosis and other diagnostic and therapeutic problems are discussed.

Antitubercular Agents↗