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1991
Badawy, W. A., Momtaz R. S., Afify H. H., & El-Giar E. M. (1991).  "Antimony- Incorporated TiO2 Thin Films : Preparation , Optical and Solid State Characteristics". . J. Materials Science , Materials in Electronics. 2, 212.
Sayyouh, M. H., & Al-Blehed M. S. (1991).  Application of EOR methods to Saudi oil fields. J. King Saud University (Engineering Sciences). 4(1), appl.saudi_to_eor.pdf
El-Batanony, M., Sayyouh M. H., & Abbas E. (1991).  Application of improved recovery of crude Oil by chemical solutions. J. Petroleum Research Institute.
Rizk, M. M. (1991).  The Approximate Solution of Systems of Ordinary Differential Equations By Means of The Approximation – Iteration Method in a Complex Domain.. Studies in the theory of the approximation of functions, Akad. Nauk Ukrain. SSR. Inst. Mat. ,Kiev. 72-85 .
Rizk, M. M., & Zaher S. L. (1991).  Approximate Solutions of Nonlinear Integro-Differential Equations on Complex Domain.. Comput.-Math.-Applic. Journal . 29(10), 69-78 .
Megahed, S. M. (1991).  Automatic Algebraic Computation of Basic Kinematic equations of tree Structure Robot Arms: Application to Human Arms . Int. J. of Engineering in Medicine, Part H, Imeche MEP Limited. 205, 135-143.
Hefny, M. M., Mogoda A. S., & El-Basiouny M. S. (1991).  Behavior of the surface oxide film on antimony in alkaline solutions.. Indian J. Chem. Technol.. 29, 85.
Khalifa, F. A., Ismail N. A., Elghandour A. H. H., & Zohdi H. F. (1991).  Benzoin In Heterocyclic Synthesis: Synthesis and Reactions of 4-Cyano-2,3-diphenyl-2H-pyrolo-5-thione. Tetrahedron. 47, 8243.
Fawzy, S., El-Sharouni S. H., Haroun H. S. W., & Shona S. I. (1991).  Blood supply of the human skin.. Egypt J Anat. 14(4), 1-15.
Mohareb, R. M., Abdel-Sayed N. I., & Sherif S. M. (1991).  Bromoacetoacetanilide In Heterocyclic Synthesis: A Convenient Synthesis of Polyfunctionally Substituted 2,3-Dihydrothiazole, Pyridine-2-one, 1,2,3-Thiazine, Oxazolo[3,4-b]pyridine and Pyrazolo[3,4-b]pyridine Derivatives. Phosphorous, Sulfur and Silicon. 63,, 119 .
[Anonymous] (1991).  Campylobacter Jejuni associated with diarrhoea of pet animals and infants. Vet. Med. J. Giza . 39 , 81-89..
Gaafar, K., Elsayed N. K., Khalek L. A. R., & Caram S. H. (1991).  Changes in some serum and histoenzymes in methyl alcohol hepatotoxicity in rats. the egyptian journal of histology. 14, 385-393. Abstractchanges_in_some_serum.pdf

Male albino rats were given 2,4 and 6% methyl alcohol solution as drinking water for 4 weeks. Liver tissue was examined for histopathologic and histochemical changes in some liver enzymes. Changes in some serum enzymes and glucose level were also assayed. The histopathologic changes in the liver were in the form of venous congestion, increased influx of inflammatory cells, bile duct proliferation, fatty degeneration and necrosis of liver parenchyma.

Succinic dehydrogenase (SDH) and membrane adenosine triphosphatase (ATPase) activities increased whereas lactate dehydrogenase (LDH) activity decreased indicating enhanced aerobic glycolysis and active phosphorylation and inhibition of anaeobic glycolysis. This was accompanied by hyperglycaemia on the first week followed by drop of glucose to normal value sug-gesting its increased utilization as energy source to offset the effects of the toxin.

Acid phosphatase (ACP) activity increased in the liver parenchyma. Alkaline phosphatase (ALP) was also activated while membrane ATPase was inhibited revealing disturbances in membrane transport processes. Liver dysfunction was also confirmed by increased activity of the serum enzymes gamma glutamyl transferase (GGT), glutamic oxaloacetate transaminase (GOT), glutamic pyruvate transaninase (GPT) and LDH.

Shehata, S. A., EL-Sayed S. F., & Fayad A. N. (1991).  Chemical weed control in potato fields. . J. Agron., Special . 103-116.
Takla, M. A., Basta F. F., & Surour A. A. (1991).  Chloritites at the contacts of some ophiolitic ultramafics, Eastern Desert, Egypt.. Egyptian Mineralogist. 3, 151-165.chloritite_1991.pdf
G.A.M.Nawwar, F. M. Abdelrazek, & R.H. Swellam (1991).  Cinnamonitrile, pyran and pyranopyrazole derivatives containing the salicylanilde moiety with anticipated molluscicidal activity.. Arch. Pharm.(Weinheim). 324(-----), 875-878.
El-Khodary, I. A. (1991).  Commuting Changes in the Greater Toronto Area and the Explanatory Capabilities of Distribution Models.
Naguib, M., Abdulatif M., & Absood A. (1991).  Comparative effects of pipecuronium and tubocurarine on plasma histamine levels in humans. British Journal of Anaesthesia. 67(3), 320-322.
[Anonymous] (1991).  Comparative study between the effects of Antenatal exercise program and TENS in managing the low back pain in the second and third trimester.
Salem, S. F., & Refai M. (1991).  Comparison between Brucella abortus and Brucella melitensis antigens in agglutination tests for Brucella diagnosis. . Vet. Med. J. Giza . 38, , 267-272 .comparison_bet_b._abortus_and_b._melit_antigens.pdf
[Anonymous] (1991).  A Computerized Interactive Educational System for Teaching Arabic Writing.
Abdou, Y. A., Mikhail M. S., Mohamed H. A., & Mansour M. S. (1991).  Control of chickpea blight caused by Ascochyta rabiei (Pass.) Lab. Egypt. J. Agric. Res. . 69((3)), 735-747.
Mohareb, R. M., & Aziz S. I. (1991).  A Convenient One-Step Synthesis of Thiophene, Thieno[3,2- b]pyridazine, Thieno[3,2-b]pyridine and Thiazole Derivatives. Sulfur Letters. 13, 229.
[Anonymous] (1991).  Core - Excited Doublet and Quartet States In the Sodium Isoelectronic Sequence. Th.El_Sherbini and A.Farrag J. Quant Sepctrosc. Radiat. Transfer (GB) 46 (1991) 473-475..
Badawy, W. A. (1991).  "Corrosion and Passivation of Titanium in Nitric Acid Solutions as Revealed from Impedance and Photocurrent Measurements ".. Ind. J. Chem. Technol.. 29, 235.
Allah, G. A. G. (1991).  Current-Transition Behaviour of Oxide Formed on Valve Metals as Inferred from Potentiostatic and Galvanostatic Measurements. B. Electrochem.
Allah, G. A. G. (1991).  Current-Transition Behaviour of Oxide Formed on Valve Metals as Inferred from Potentiostatic and Galvanostatic Measurements. B. Electrochem.
Hefny, M. M., Salih S. A., Mogoda A. S., Khalek A. A. A., & El-Mahdy G. A. (1991).  Currentless behavior of surface oxide films on hafnium in fluoride media with and without cathodic pulsing.. Bull. Electrochem.. 7, 41.
Allah, G. A. G., Bekheet A. M., El-Egamy S. S., & El-Basiouny M. S. (1991).  Currentless Oxide Film Formation on Niobium in Halide Solutions. B. Electrochem.
[Anonymous] (1991).  CW He-Ne Laser Radiation-Induced Line Emission Amplification at 210 nm L. Z. Ismail and T. M. Atawee Infrared Phys. 31 (1 ) , 95.
Montasser, S. S., El-Kolaly H. A., & Hönerlage B. (1991).  Degenerate-signal generation in CuCl under nanosecond-excitation conditions. PHYSICAL REVIEW B. 44, 11490.
Sabry, R. (1991).  Des inserts. La fonction des écrits insérés en contexte romanesque. Texte et contexte.
El-Sharouni, S. H., Soliman H. A., Haroun H. S. W., Doss S. H., & Nessim W. H. (1991).  Descriptive and morphometric study of the mitral valve in man.. Egypt J Anat. 14(4), 17-32.
Mabrouk, H. E., El-Asmy A. A., Al-Ansi T. Y., & Mounir M. (1991).  The direct electrochemical synthesis of Cd (II), Co (II), Cu (I), Fe (II) and Zn (II) complexes of some thiosemicarbazide derivatives. Bulletin de la Société chimique de France . 309-313.
Atta, A. H., Abdel-Aziz M. I., Abo-Norage M. A., & Abdel-Hady F. (1991).  Disposition kinetics and tissue residues of sulphadimethoxine in rabbits. . Bull. Anim. Hlth. Prod. Afr. . 39, 185-190. .
Atef, M., Youssef S. A., Atta A. H., & El-Maaz A. (1991).  Disposition of tylosin in goats. . British Veterinary Journal (Now: The Veterinary journal). 147, 207-215.
El-Hadidi, T., & El-Garf A. (1991).  Double-blind study comparing the use of Voltaren Emulgel versus regular gel during ultrasonic sessions in the treatment of localized traumatic and rheumatic painful conditions. J Int Med Res. 19(3), 219-27.
[Anonymous] (1991).  AN ECHOCARDIOGRAPHIC STUDY IN CARDIOVASCULAR-DISEASED PATIENTS DURING DENTAL TREATMENT USING LOCAL ANAESTHESIA WITH ADRENALINE . . THE NEW EGYPTIAN JOURNAL OF MEDICINE. 5, 1-11 . Abstract

ABSTRACT:
The cardiac function in a sample of cardiovascular patients was investigated by echocardiography during dental treatment using local anaesthesia . The anaesthetic used was 2% lidocaine with 1 : 100 , 000 epinephrine , which is now considered by many authors as a safe concentration . It was found at the end of the study that the cardiac output , stroke volume , heart rate , ejection fraction as well as other parameters were , unexpectedly , enhanced and increased in cardiovascular patients . These parameters were not changed in normal healthy patients . It was concluded , hence , that lidocaine 2% with adrenaline 1 : 100,000 should be used with causion in cardiovascular diseased patients .

El-Batanony, M., Sayyouh M. H., El-Abbas A., & El-Sallaly M. (1991).  Economic Evaluation of the West Bakr oil displacement by chemical solutions and hot water flooding. AEIC 91,Al-Azhar Engineering.
mohammad mohammad alsehimy (1991).  EDEMA AND PAIN PROPHYLAXIS IN IMPACTED MANDIBULAR THIRD MOLAR SURGERY . . THE NEW EGYPTIAN JOURNAL OF MEDICINE . 5, 12-17 . Abstract

ABSTRACT :
Swelling and pain were assessed in 16 patients with bilaterally impacted mandibular third molar , oerated upon under fluothane general anaesthesia . Local anaesthesia was an adjuvant in the right side operations while the left side acted as control , injected with normal saline . Patients were easily maintainted at a lower level of fluothane concentration while operating on their right sides compared to the left . Results stressed the important role of local anaesthesia in minimizing postoperative pain and swelling .

Naguib, M., & Abdulatif M. (1991).  Edrophonium priming alters the course of recovery from a pipecuronium neuromuscular blockade. Canadian Journal of Anesthesia. 38(6), 722-727.