Biomedical subjects

Y Omar

Publications and source records attributed to Y Omar.

3 recordsLinked to original sources

PubMed2002

Entanglement concentration using quantum statistics.

We propose an entanglement concentration scheme which uses only the effects of quantum statistics of indistinguishable particles. This establishes the fact that useful quantum information processing can be accomplished by quantum statistics alone. Because of the basis independence of statistical effects, our protocol requires less knowledge of the initial state than most entanglement concentration schemes. Moreover, no explicit controlled operation is required at any stage.

Journal Article↗

PubMed2001

Bilateral origin of the internal thoracic artery from the third part of the subclavian artery: a case report.

The routine use of the internal thoracic artery (ITA) as a conduit in coronary artery bypass grafting surgery has highlighted the need to appreciate this vessel's anatomic variations. The usual origin of this vessel is from the first part of the subclavian artery, occasionally from the second and rarely from the third. Henriques-Pino and Prates described a unilateral origin from the third part on the left and Vorster et al on the right. Our cadaveric case report presents an unusual bilateral origin of the ITA arising from the third part of the subclavian artery in a 25-year-old Black South African female. The ITA arose from the ventral aspect, 7.3 cm on the right side and 8.5 cm on the left side from the origin of the subclavian artery, and inclined acutely inferiorly and medially, anterior to the distal attachment of the scalenus anterior m., followed the inner border of the first rib for a short distance and, thereafter, continued its usual course in the thorax. This appears to be the first case report presenting a bilateral origin of the ITA from the third part of the subclavian artery.

Adult↗

PubMed1982

Breast cancer in Arabic women.

A case-control study of breast cancer was conducted in Cairo, Egypt and in Kuwait. This is the first such report from Arabic countries and the most significant finding is the animal incidence rate of 7.67 per 100,000 in Kuwaiti women, which ranks amongst the lowest thus far reported in the world. Factors which contribute to this low rate are a short period of active menstruation, low family history, first childbirth at very early age and most likely significant dietary factors. More than 45% of Egyptian women give birth to a child before the age of 20, with 56.5% of controls and 42.3% of patients (p less than 0.01). Many patients already have extensive disease at time of diagnosis as a result of considerable delay. However, this delay did not result in a high incidence of inflammatory breast carcinoma, such as has been reported in Tunisia.

Adult↗