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1989
Gaafar, K., N. K. EL-Sayed, L. R. A. Khalek, and L. K. Hanafy, "Methyl alcohol retinotoxicity in Rats: A biochemical and ultrastructural study", the egyptian medical journal, vol. 6, pp. 515-535, 1989. Abstractmethyl_alcohol.pdf

The effect of methyl alcohol poisoning on blood gases and serum electrolytes in addition to its effect on the ultrastructure of the retina were estimated in male albino rats. A significant increase in potassium level and pCO2 was accompanied by depletion in pO2. Sodium and chloride levels were unchanged. A calculated increase in anion gap was due mainly to the increase of potassium level.
Methyl alcohol also effected edema of all layers of the retina, fragmentation and ultrastructural changes of the photoreceptor outer segments, agglomeration of chromatin, dissolution of Nissl granules, swelling and degeneration of mitochondria. These necrotic changes were attributable mainly to the hypoxic state caused by the toxin and possibly aggravated by the resultant acidosis.

El-Ansary, A. S. E., Minimization of stresses and pressure surges in pipes using nonlinear optimization., , 1989. Abstract

The control of stresses and liquid pressure surges in pipes is an important problem in the design of hydraulic pipe networks. The method of characteristics has been used to solve the transient stresses and pressures in liquid-filled piping systems. The friction force is included in the equations of motion for the fluid and the pipe wall. The maximum pressure and maximum stress at any point along the length of the pipe are evaluated for the entire simulation time. A nonlinear search technique has been developed using the simplex method. The optimal valve closure is sought, that will minimize the maximum pressure and/or stresses. A continuous optimal valve closure policy is specified using spline functions. Numerical examples are presented showing the reduction of the dynamic pressure and the dynamic stress from linear valve closure to optimal valve closure for a simple pipeline and a complex pipeline. Also, a method for choosing the shortest time of closure which will keep the stresses below specified allowable stresses is presented.

, "Modulation of the anti-inflammatory effect of oxyphenbutazone formulated in different suspensions. ", Bull.Fac.Pharm., Cairo Univ.,, 1989.
Haroun, H. S. W., W. H. Nessim, H. A. Soliman, and A. A. Badawy, "Morphological study of the jejunal and ileal villi in normal and methotrexate-injected adult albino rats.", Egypt J Anat, vol. 12, issue 2, pp. 237-258, 1989.
Adham, I. K., H. A. sattar, A. H. A. Salam, and M. ElKholy, Multisystem organ failure , , 1989.
Abdou O. Abdelhamid, A. M. Negm, and I. M. Abbas, "New synthesis of pyrazolo[3,4-d]pyrimidine, pyrazolo[3,4-d]pyridazine, isoindolinedione and pyrazole derivatives", J. Prakt. Chemie, vol. 331, pp. 31, 1989.
Osman, Z. H., M. A. Farrag, and K. E. L. Farra, "New Technique for Fast Economic Load Dispatch", Modeling , Simulation, and Control, vol. 25, issue 4, pp. 45 56, 1989.
Shibini, E. L. M., and Z. H. Osman, "A Novel Technique to Estimate Fuel Cost Functions for Economic Operation of Power Systems", International Journal of Electrical Power and Energy Systems, vol. 11, issue 2, pp. 1109-1140, 1989.
Gamal, Y. E. E. - D., "On stepwise ionisation processes in electrical breakdown of molecular gases by laser irradiation", J. Phys. D: Appl. Phys. , vol. 22, pp. 385-389, 1989. gamal1989.pdf
ABOU BAKR, H., M. M. El Husseini, N. Helmi, and A. Kamel, "On the biology and morphology of the immature stages of the peach cockchafer, Pachnoda Fasciata F.(Coleoptera : Scarabaeidae)", 1st Int.Conf.Econ.Entomol.11-14 December, Cairo, Egypt, Egyptian Society of Entomology, pp. Vol.1,pp.115-128, 1989.
Wali, A. M. A., S. Abdel Wahab, and O. E. A. Attia, "On the geochemistry and mineralogy of Abu Khashir Miocene evaporites and its significance, Ras Sudr, Sinai, Egypt", Bulletin of Faculty of Science, Cairo University, Egypt, vol. 57, pp. 741-765, 1989.
Ahmed, N. A., N. M. Radwan, A. H. Sallam, K. S. ‎ Abou El-Ela, and H. ‎ Salah El-Din, "Oral contraceptive steroid "norminest" in relation to certain ‎amino acid neurotransmitters in rat brain.", ‎The New Egyptian Journal of Medicine. , vol. 3, issue 5, pp. 1597-1602.‎, 1989.
Osman, A. A., A. A. Farahat, and A. W. Wafdi, "Organic amendments as co-agent with systemic nematicides to control nematodes infecting cowpea.", Bull. Zool. Soc., Egypt., vol. 38, pp. 49-63, 1989.
El-Sanousi, A. A., D. G. Abo-El-Hassan, R. M. Arab, M. A. Shalaby, M. S. Saber, and I. M. Reda, "An outbreak of rinderpest-like disease among Egyptian wild rams", Veterinary Medical Journal, Cairo Univ.(Egypt), vol. 37, issue 2, pp. 261 - 280, 1989. Abstract

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Omara, F. A., and C. R. Jesshope, "A Parallel Implementation of Prolog For Process OR Concurrency", Parallel Computing 89, North Holland, Elsevier Science Publishers B. V., pp. 411 – 417, 1989.
Al-Hussaini, E. K., "Parallel quardrature receivers for M-ary NCFSK signals through multipath fading channels", The Arabian Journal for Science and Engineering, vol. 14, issue 4, pp. 617-621, 1989.
El-Sergany, M. A., R. E. Doghaim, H. R. A. Nabiha, M. H. Amira, and M. Mahdy, "Pathological and laboratory investigations on pneumonia in sheep", Egypt. J.Comp. Path. and Clin. Path. , vol. 2, issue 1, pp. 31-45, 1989.
Kassem, Y. M., A. N. Mahdy, and M. F. Abadir, "The PbO2-PbO-V2O5 system in air", Thermochimica Acta, vol. 156, issue 2, pp. 211-224, 1989.
Al-Hussaini, È. K., "Performance of a celll averanging detector in the presence of multiple targets", FREQUENZ, vol. 43, issue January, pp. 21-23, 1989.
Wahab, A. S., A. M. A. Wali, and O. E. A. Attia, "Petrography of the primary and secondary gypsum of the Middle Miocene evaporites of the Abu Khashir area. Western Sinai, Egypt", Bulletin of Faculty of Science, Cairo University, Egypt, vol. 57, pp. 769-792, 1989.
and W. J. Plieth, G. Pfuhl, F. B. A. W. A., G. Pfuhl, A. Felske, and W. A. Badawy, ""Photoetching of 111/ V Semiconductor ". ", Electrochim. Acta, issue 34, pp. 1133, 1989.
Ahmed, N. A., S. M. Rawi, N. M. Radwan, and A. M. ‎ Bello, "Physiological studies on the toxicity of carbon tetrachloride. 2-‎Effect on the activity of some enzymes in brain, liver and ‎plasma of albino rats. ‎", Proc. Egypt. Acad. Sci., vol. 39, pp. 111-133, 1989.
Ahmed, N. A., Rawi, S.M., N. M. Radwan, and A. M. ‎ Bello, "Physiological studies on the toxicity of carbon tetrachloride.1-‎Effect on some excitatory and inhibitory amino acids in rat ‎brain. ‎", Proc. Egypt. Acad. Sci. , vol. 39, pp. 93-109.‎, 1989.
Khalil, E. E., "Predicted Flow Pattern In Air Conditioned Spaces", Clima2000, Yugoslavia,, Yugoslavia, Hemisphere, pp. 12-20, 1989.
Farahat, A. A., and A. A. Osman, "Preliminary in-vitro study on the efficacy of some herbicides against the reniform nematode, Rotylenchulus reniformis.", Bull. Zool. Soc., Egypt., vol. 38, 1989.