Publications

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Badr, Y. A., and S. B. El-Guiziri, "IR and DTA studies of high-temperature phase transition in lithium-ammonium sulphate", Journal of Physics and Chemistry of Solids, vol. 51, no. 5, pp. 421-423, 1990. AbstractWebsite
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Mohamed, T. A., A. M. Mustafa, W. M. Zoghaib, M. S. Afifi, R. S. Farag, and Y. Badr, "Infrared, Raman and temperature-dependent NMR spectra, vibrational assignments, normal coordinate analysis, and DFT calculations of benzoxazoline-2-thione", Vibrational Spectroscopy, vol. 52, no. 2, pp. 128-136, 2010. AbstractWebsite
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El‐Kabbany, F., Y. Badr, and M. Tosson, "Infrared study of the high‐temperature phase transition III—I of Na2SO4", physica status solidi (a), vol. 63, no. 2, pp. 699-704, 1981. AbstractWebsite
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El‐Kabbany, F., G. Said, Y. Badr, and S. Taha, "Infrared investigation of the phase transition in K2SO4", physica status solidi (a), vol. 67, no. 1, pp. 339-345, 1981. AbstractWebsite
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Abdelsalam, E., M. Samer, Y. A. Attia, M. A. Abdel-Hadi, H. E. Hassan, and Y. Badr, "Influence of zero valent iron nanoparticles and magnetic iron oxide nanoparticles on biogas and methane production from anaerobic digestion of manure", Energy, vol. 120, pp. 842-853, 2017. AbstractWebsite
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Darwish, A. G. A., Y. Badr, M. El Shaarawy, N. M. H. Shash, and I. K. Battisha, "Influence of the Nd3+ions content on the FTIR and the visible up-conversion luminescence properties of nano-structure BaTiO3, prepared by sol-gel technique", Journal of Alloys and Compounds, vol. 489, no. 2, pp. 451-455, 2010. AbstractWebsite
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Meng, Q., A. Ren, L. Zhang, J. Liu, Z. Li, Y. Yang, R. Li, and L. Ma, "Incidence of infertility and risk factors of impaired fecundity among newly married couples in a Chinese population", Reproductive BioMedicine Online, vol. 30, no. 1, pp. 92 - 100, 2015. AbstractWebsite

Abstract The aims of this study were to obtain the incidence of infertility, to examine the causes of infertility and to explore risk factors for impaired fecundity in a rural region of northern China using a prospective follow-up design. A total of 2151 newly married couples planning to become pregnant within the next 12 months were enrolled between 2009 and 2012 from two counties of Shanxi Province in northern China. Couples were followed up for at least 1 year or until a clinical pregnancy occurred. Information about clinical pregnancy was obtained. The 12-month and 24-month infertility rates were 13.6% (95% \{CI\} 11.9 to 15.3) and 8.5% (95% \{CI\} 6.7 to 10.3), respectively. About 63% of women became pregnant within 6 months of follow up, and 86% did so within 12 months of follow up. The main causes of female infertility were ovulation disorders, fallopian tube problems and polycystic ovary syndrome. The primary cause of male infertility was sperm quality problems. Couples who used coal as cooking fuel, women with a higher body mass index, women with long-term health problems, and men who had married at later ages were more likely to have delayed pregnancies.

Aziz, M. A., D. S. Salem, M. S. Salama, and Y. Badr, "In vitro study for laser gene transfer in "BHK-21" fibroblast cell line", Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 7175, 2009. Abstract
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Khafagy, R. M., and Y. A. Badr, "In situ FTIR spectroscopic study of the recently detected low-temperature-induced structural changes in isotactic polypropylene", Journal of Polymer Science, Part B: Polymer Physics, vol. 43, no. 20, pp. 2829-2842, 2005. AbstractWebsite
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Ismail, T., J. M. El-Azab, and Y. A. Badr, "The impact of changing HNL-DSF parameters on wavelength exchanging", Proceedings of the 2013 2nd International Japan-Egypt Conference on Electronics, Communications and Computers, JEC-ECC 2013, pp. 143-147, 2013. Abstract
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