Publications

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210
Issa, Y. M., W. F. El-Hawary, A. F. A. Youssef, and A. R. Senosy, "Spectrophotometric Determination of Sildenafil Citrate in Pure Form and in Pharmaceutical Formulation Using Some Chromotropic Acid Azo Dyes", Spectrochim. Acta Part A, vol. 75, issue 4, pp. 1297-1303, 210.
1015
A, M. E., G. M. Y, S. Rodina, and E. Hala, Skletal and cardiac muscle involvment in childern with glycogen storage disease type III, , 1015.
1970
Yousef, Y. L., E. A. El-Salam, M. M. Saadeldin, and S. M. Khalil, "Transistorized vibration detector", Journal of Physics E: Scientific Instruments, vol. 3, issue Issue 10, pp. pp. 829-830 , 1970. abstract.docx
1971
Yoho, T. P., L. Butler, and J. E. Weaver, "Photodynamic effect of light on dye-fed house flies: preliminary observations of mortality.", Journal of Economic Entomology, vol. 64, issue 4, pp. 972-973, 1971. Abstract
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1972
Yousef, Y. L., E. A. El-Salam, M. M. Saadeldin, and S. M. Khalil, "Efficincy of vibratin detector using quartz crystal", Egypt. J. phys.. , vol. 3, issue 2, pp. 147-149, 1972.
Yousef, Y. L., E. A. El-Salam, M. M. Saadeldin, and S. M. Khalil, "Simple electrometer arrangement for measuring conductivity of organic semiconductors.", Egypt. J. phys., 3 ,No.2, 147-149 , vol. 3, issue 2, pp. 149, 1972.
1973
Yoho, T. P., J. E. Weaver, and L. Butler, "Photodynamic action in insects. 1. Levels of mortality in dye-fed light-exposed house flies", Environmental Entomology, vol. 2, issue 6: Oxford University Press Oxford, UK, pp. 1092-1096, 1973. Abstract
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1974
Youssef, A. M., A. M. El-Nakkadi, and A. M. Aboul-Enein, "Electrophoretic analysis of poultry muscle proteins.", Alexandria J. Agric. Res., , vol. 22, issue 2, pp. 195-203, 1974.
1975
Youssef, A. M., A. M. El-Nakkadi, and A. M. Aboul-Enein, "Amino acid composition of Egyptian poultry muscles", Pakistan J. Sci., , vol. 27, issue Nos. 1-7, pp. 37, 1975.
1976
Yoho, T. P., L. Butler, and J. E. Weaver, "Photodynamic killing of house flies fed food, drug, and cosmetic dye additives", Environmental Entomology, vol. 5, issue 1: Oxford University Press Oxford, UK, pp. 203-204, 1976. Abstract
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Aboul-Enein, M. I., A. M. Youssef, S. A. Osman, A. M. Aboul-Enein, and A. A. Attia, "Disturbances in lipid metabolism in non-immunized versus immunized tumor bearing mice", Arab J. Lab. Med., vol. 2, issue 2, pp. 93, 1976.
1977
Yamada, Y., T. Hirakawa, and A. S. Wifi, "Analysis of large deformation and bifurcation in plasticity problems by the finite element method", Finite elements in non-linear mechanics, pp. 393–412, 1977. Abstract
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Yamada, Y., and A. S. Wifi, "Large strain analysis of some geomechanics problems by the finite element method", International Journal for Numerical and Analytical Methods in Geomechanics, vol. 1, no. 3: Wiley Online Library, pp. 299–318, 1977. Abstract
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Abdel-Aal, S. I., M. A. Naga, and A. F. Youssef, "Pedological studies of the soils of Mariut Area, Egypt", The Desert Institute Bulletin (Egypt), 1977. Abstract
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Ayoub, M. M., H. I. Youseff, and H. Morad, "A preliminary study on the age of puberty in buffalo-heifers [dairy cattle], in Egypt", Albohouth Azziraiya, vol. 55, 1977. Abstract
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Osman, S. A., M. I. Aboul-Enein, A. M. Aboul-Enein, A. M. Youssef, and A. A. Attia, "Biochemical changes in the tumor cells of Ehrlich Ascites and Sarcoma 180.", Arab J. Lab. Med., vol. 2, issue 20, pp. 33, 1977.
1978
El Talty, Y. I., Y. Youssef, and S. A. GABR, "The use of corn steep liquor fareveiching some by-products in metabolism trials with sheep [Egypt].", Veterinary Medical Journal, 1978. Abstract
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Yeow S.H., El-Sherbiny M., and N. T.P., "Thermal analysis of a tyre during rolling or sliding", Wear ISSN 431648, vol. 48, issue 1, 1978.
1979
Yamada, Y., A. S. Wifi, and T. Hirakawa, "Analysis of large deformation and stress in metal forming processes by the finite element method", Metal Forming Plasticity$\backslash$ Proc. Conf.$\backslash$, Tutzing, Germany, Aug.-Sept. 1978,, pp. 158–176, 1979. Abstract
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Hegazy, A., H. I. Youseff, and S. A. Selim, "Bacteriological and histopathological studies on endometritis of the camel", J Egypt Vet Med Assoc, vol. 39, pp. 81-97, 1979. Abstract
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Kamel, M. Y., S. A. Maksoud, and E. H. A. Youssef, "Non-oxidative Deamination of Histidine to Imidazole Propionic Acid by an Enzyme Preparation from Vicia faba", Zeitschrift für Pflanzenphysiologie, vol. 92, no. 3, pp. 255-261, 1979. AbstractWebsite

Summary A method for the preparation of a 50 fold purified enzyme from Vicia faba catalyzing the non-oxidative deamination of histidine to imidazole propionic acid and ammonia is described. AMP and B12 requirement for the purified enzyme is indicated. The enzyme exhibited optimal activity at pH 9.0 in pyrophosphate buffer. Km values for L-histidine, AMP and B12 were found to be 4.0 mM, 6.2 mM and 0.97 mM, respectively. Chromatographic analysis and the stoichiometric relationship between enzymatically liberated ammonia and product formed suggested that the enzymatic product is imidazole propionic acid.

El Talty, Y. I., A. M. Youssef, Y. Chali, and S. A. GABR, "use of corn steep liquor. Effects of some byproducts in metabolism trials with sheep", Veterinary medical journal, 1979. Abstract
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1980
Osman, M. A., M. Belal, A. M. Nomrossy, and A. M. Yousse, "Organic contaminates in water", Journal of Environmental Science & Health Part B, vol. 15, issue 3: Taylor & Francis, pp. 295-306, 1980. Abstract
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Riad, S. A., R. El Zugagi, and N. S. Yahya, "Studies on some characters of meat production of local turkey in North Iraq. 1.-Studies on some characters of meat production.", Annals of Agricultural Science, Moshtohor, 1980. Abstract
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Riad, S. A., R. El Zugagi, and N. S. Yahya, "Studies on some characters of meat production of local turkey in North Iraq. 1.-Studies on some characters of meat production.", Annals of Agricultural Science, Moshtohor, 1980. Abstract
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