1. Abdul Rahman ,A.:

Local cerebral blood flow in the post ischemic period following complete ischemia. Presented to the Scientific meeting of the Arabs Doctors Union, Amman, October, 1981.

2. Abdul Rahman ,A.:
3. Abdul Rahman ,A.:

Local cerebral blood flow versus local cerebral glucose consumption in insulin induced hypoglycemia. Presented to the 8th Scientific Meeting of the Sudanese Assocition of   Physicians,     Khartoum, Sudan, February, 1982.

Neurosurgery without tears, Presented to the 34th Annual Meeting of the Scandinavian Neurosurgical Society,   Trandheim, Norway, June1982.

4. Abdul Rahman ,A.:

Ischemia and cerebral metabolism. Presented to the Scientific Meeting of the Sudanese Assocition of Surgeons, Kartoum, Sudan, March 1983.

5. Abdul Rahman ,A.:
6. Abdul Rahman ,A. and Abu-Salih, H.S:

Effects of circulating adrenaline on local cerebral blood flow: The role of blood brain barrier. Presented to the 9th. Scientific Meeting of the Sudanese Association of    Physicans, Khartoum, Sudan, February 1984.

Neoplasms of the Brain in Sudan. Presented to the 36th. Annual Meeting of Scandinavian Neurosurgical Society,   September 1984, Stockholm, Sweden.

7. Abdul Rahman ,A. and Abu-Salih, H:

Pattern of head injuries at Khartoum Teaching Hospital,     Khartoum, Sudan, 1976-1985. Presented to the Scientific Meeting of Arabs Doctors Union, Khartoum, February 1987.

8. Abdul Rahman ,A. and Abu-Salih, H.:

Tumours of the central nervous system in the Sudan.     Presented to the Scientific Meeting of the Arabs Doctors Union,     Khartoum, Februay 1987.

9. Tom, A., Ibrahim, S., Saeed, B. and Abdul Rahman ,A.:

Electrophoretic pattern of plasma lipoproteins in normal Sudanese children with protein energy malnutrition.     Presented to the Scientific Meeting of Arabs Doctors Union,     Khartoum, February 1987.

1. Hassan, D., Attabani, G and Abdul Rahman ,A:

Glycosylated haemoglobin levels in Sudanese sickle cell anemia patients. Presented to the scientific meeting of the Arabs Doctors Union, Khartoum, Sudan, February l987.

1. Abdul Rahman ,A. and Abu-Salih, H.:

The Indence of the central nervous system tumours in the Sudan. Presented to the World Congress of Neuroscience, Budabest 1987.

2. Abdul Rahman ,A.:

The Use of Arabic Language in Clinical Teaching and       Assessment. 5^th Ottawa lnternational Conference on Assessment of clinical competence,   September 1992, Dundee, Scotland.

3. Abdalrahaman-Barri:

Bilharziasis of the spinal cord. Presented to the Scientific Meeting of the Sudanese Association of Surgeons. Khartoum, Sudan 1998.