The piriformis syndrome

Piriformis syndrome is an often misdiagnosed cause of sciatica, leg, or buttock pain, and disability. The sciatic nerve may be compressed within the buttock by the piriformis muscle, with pain increased by muscular contraction, palpation, or prolonged sitting. A thorough medical history and physical examination are essential to proper diagnosis. Diagnostic testing may be used to differentiate piriformis syndrome from other causes of sciatica, lower extremity weakness, and pain. This article reviews the pathophysiology and management of piriformis syndrome.     

Main transformation tools in ANALITIK-93 programming system

Translated from Kibernetika i Sistemnyi Analiz, No. 1, pp. 162–169, January–February, 1995.     

Theory and practice in developing a system of artificial intelligence for recognizing histologic specimens

A system is described for an automatic analysis and recognition of a fresh and reference histologic material. The system includes a microscope, TV camera and personal computer. The system proved applicable in identification of two tumor types: astrocytomas and oligodendrogliomas. The system can be used in pathology, histology, embryology, cytology, histochemistry, clinical laboratory microscopy and in borderline fields.