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Ouni, S., M. M. Cohen, and D. W. Massaro, "Training Baldi to be multilingual: A case study for an Arabic Badr", Speech Communication, vol. 45, no. 2, pp. 115 - 137, 2005. AbstractWebsite

In this paper, we describe research to extend the capability of an existing talking head, Baldi, to be multilingual. We use parsimonious client/server architecture to impose autonomy in the functioning of an auditory speech module and a visual speech synthesis module. This scheme enables the implementation and the joint application of text-to-speech synthesis and facial animation in many languages simultaneously. Additional languages can be added to the system by defining a unique phoneme set and unique phoneme definitions for the visible speech for each language. The accuracy of these definitions is tested in perceptual experiments in which human observers identify auditory speech in noise presented alone or paired with the synthetic versus a comparable natural face. We illustrate the development of an Arabic talking head, Badr, and demonstrate how the empirical evaluation enabled the improvement of the visible speech synthesis from one version to another.

Shaaban, I. A., T. A. Mohamed, W. M. Zoghaib, L. D. Wilson, R. S. Farag, M. S. Afifi, and Y. A. Badr, "Tautomerism, Raman, infrared and ultraviolet-visible spectra, vibrational assignments, MP2 and B3LYP calculations of dienol 3,4-dihydroxypyridine, keto-enol 3-hydroxypyridin-4-one and keto-enol dimer", Journal of Molecular Structure, vol. 1043, pp. 52-67, 2013. AbstractWebsite
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Aly, H. M., M. E. Moustafa, M. Y. Nassar, and E. A. Abdelrahman, "Synthesis and characterization of novel Cu (II) complexes with 3-substituted-4-amino-5-mercapto-1,2,4-triazole Schiff bases: A new route to CuO nanoparticles", Journal of Molecular Structure, vol. 1086, pp. 223 - 231, 2015. AbstractWebsite

Abstract Cu (II) complexes, were synthesized with newly derived biologically active 1,2,4-triazole Schiff bases. The Schiff bases were synthesized by condensation of 3-substituted-4-amino-5-mercapto-1,2,4-triazole with dibenzoylmethane. The synthesized compounds were characterized using elemental analysis, magnetic moment, thermal analysis and spectral tools (FT-IR, 1HNMR, ESR, and UV–Vis spectroscopy). All the synthesized complexes are nonelectrolytes in N,N-dimethylformamide. The synthesized Schiff bases and their Cu (II) complexes have been screened for antibacterial (Escherichia coli & Staphylococcus aureus) and antifungal (Aspergillus flavus & Candida albicans) activity using a modified Bauer-Kirby method. Interestingly, the synthesized Cu (II) complexes were used as precursors for CuO nanoparticles which were characterized using XRD, HR-TEM, FT-IR and UV–Vis spectroscopy. The photocatalytic activity of the prepared CuO nanoparticles was studied by performing the degradation of methylene blue dye under \{UV\} illumination in the presence of \{H2O2\} and the results showed that the maximum percent of the degradation of methylene blue dye (MB) was found 96.18% after 360 min.

Aly, H. M., M. E. Moustafa, M. Y. Nassar, and E. A. Abdelrahman, "Synthesis and characterization of novel Cu (II) complexes with 3-substituted-4-amino-5-mercapto-1,2,4-triazole Schiff bases: A new route to CuO nanoparticles", Journal of Molecular Structure, vol. 1086, pp. 223 - 231, 2015. AbstractWebsite

Abstract Cu (II) complexes, were synthesized with newly derived biologically active 1,2,4-triazole Schiff bases. The Schiff bases were synthesized by condensation of 3-substituted-4-amino-5-mercapto-1,2,4-triazole with dibenzoylmethane. The synthesized compounds were characterized using elemental analysis, magnetic moment, thermal analysis and spectral tools (FT-IR, 1HNMR, ESR, and UV–Vis spectroscopy). All the synthesized complexes are nonelectrolytes in N,N-dimethylformamide. The synthesized Schiff bases and their Cu (II) complexes have been screened for antibacterial (Escherichia coli & Staphylococcus aureus) and antifungal (Aspergillus flavus & Candida albicans) activity using a modified Bauer-Kirby method. Interestingly, the synthesized Cu (II) complexes were used as precursors for CuO nanoparticles which were characterized using XRD, HR-TEM, FT-IR and UV–Vis spectroscopy. The photocatalytic activity of the prepared CuO nanoparticles was studied by performing the degradation of methylene blue dye under \{UV\} illumination in the presence of \{H2O2\} and the results showed that the maximum percent of the degradation of methylene blue dye (MB) was found 96.18% after 360 min.

El‐Kabbany, F., Y. Badr, G. Said, S. Taha, and S. Mahrous, "A Study of the Thermal Hysteresis in AgNO3", Annalen der Physik, vol. 499, no. 8, pp. 575-583, 1987. AbstractWebsite
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El‐Kabbany, F., Y. Badr, G. Said, S. Taha, and S. Mahrous, "A study of the thermal hysteresis in AgNO3", physica status solidi (a), vol. 95, no. 1, pp. 127-134, 1986. AbstractWebsite
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Badr, Y., S. Abd El-wanees, and M. A. Mahmoud, "Spectroscopic and dynamic studies of the photolysis reaction of acetone by 193 nm excimer laser", Journal of Photochemistry and Photobiology A: Chemistry, vol. 168, no. 1-2, pp. 31-38, 2004. AbstractWebsite
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Dessouki, A. M., Y. Badr, A. H. Zahran, A. Mousa, and M. Abo-Zeid, "Some spectroscopic studies of cotton-G-styrene prepared by λ irradiation", International Journal of Radiation Applications and Instrumentation. Part, vol. 27, no. 5, pp. 347-351, 1986. AbstractWebsite
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Dessouki, A. M., Y. Badr, A. H. Zahran, A. Mousa, and M. Abo-Zeid, "SOME SPECTROSCOPIC STUDIES OF COTTON-G-STYRENE PREPARED BY gamma IRRADIATION.", Radiation Physics and Chemistry, vol. 27, no. 5, pp. 347-351, 1986. AbstractWebsite
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Dessouki, A. M., Y. Badr, A. H. Zahran, A. Mousa, and M. Abo-Zeid, Some spectroscopic studies of cotton-g-styrene prepared by gamma irradiation, , 1986. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "Size-dependent surface-enhanced Raman scattering of sodium benzoate on Silver nanoparticles", Journal of Molecular Structure, vol. 749, no. 1-3, pp. 187-192, 2005. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "Size-dependent spectroscopic, optical, and electrical properties of PbSe nanoparticles", Crystal Research and Technology, vol. 41, no. 7, pp. 658-663, 2006. AbstractWebsite
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Cerón, E. M., R. C. Mateos, and F. García-Río, "Síndrome de apneas-hipopneas del sueño y diabetes tipo 2. ¿Una relación de ida y vuelta?", Archivos de Bronconeumología, vol. 51, no. 3, pp. 128 - 139, 2015. AbstractWebsite

Resumen Diversos datos epidemiológicos muestran que el síndrome de apneas-hipopneas del sueño (SAHS) se relaciona independientemente con el desarrollo de resistencia a la insulina e intolerancia a la glucosa. Además, y pese a la existencia de notables limitaciones metodológicas, algunos estudios refieren una elevada prevalencia de \{SAHS\} en pacientes con diabetes tipo 2 (DM2). Un reciente metaanálisis muestra que el \{SAHS\} moderado-grave se asocia a un mayor riesgo de \{DM2\} (riesgo relativo = 1,63 [1,09-2,45]), en relación con la ausencia de apneas-hipopneas. La existencia de alteraciones comunes de diversas vías patogénicas le proporciona plausibilidad biológica a esta relación. La hipoxia intermitente y la fragmentación del sueño, originadas por la sucesión de episodios de apneas-hipopneas, inducen diversos trastornos intermedios, como la activación del sistema nervioso simpático, el estrés oxidativo, la inflamación sistémica, alteraciones en las hormonas reguladoras del apetito y activación del eje hipotálamo-hipófiso-suprarrenal, que favorecen el desarrollo de resistencia a la insulina, así como su progresión a intolerancia a la glucosa y, en última instancia, a DM2. La coexistencia del \{SAHS\} parece agravar la evolución de la DM2, al empeorar el control glucémico y potenciar el efecto de la aterosclerosis en el desarrollo de complicaciones macrovasculares. Además, el \{SAHS\} podría asociarse al desarrollo de complicaciones microvasculares, particularmente la retinopatía, nefropatía o neuropatía diabéticas. Aunque todavía escasos, algunos datos sugieren que la \{DM2\} también podría empeorar la evolución del SAHS, al favorecer la colapsabilidad de la vía aérea superior y potenciar la aparición de apneas-hipopneas centrales. Abstract Epidemiological data suggest that sleep apnea-hypopnea syndrome (SAHS) is independently associated with the development of insulin resistance and glucose intolerance. Moreover, despite significant methodological limitations, some studies report a high prevalence of \{SAHS\} in patients with type 2 diabetes mellitus (DM2). A recent meta-analysis shows that moderate-severe \{SAHS\} is associated with an increased risk of \{DM2\} (relative risk = 1.63 [1.09 to 2.45]), compared to the absence of apneas and hypopneas. Common alterations in various pathogenic pathways add biological plausibility to this relationship. Intermittent hypoxia and sleep fragmentation, caused by successive apnea-hypopnea episodes, induce several intermediate disorders, such as activation of the sympathetic nervous system, oxidative stress, systemic inflammation, alterations in appetite-regulating hormones and activation of the hypothalamic-pituitary-adrenal axis which, in turn, favor the development of insulin resistance, its progression to glucose intolerance and, ultimately, to DM2. Concomitant \{SAHS\} seems to increase \{DM2\} severity, since it worsens glycemic control and enhances the effects of atherosclerosis on the development of macrovascular complications. Furthermore, \{SAHS\} may be associated with the development of microvascular complications: retinopathy, nephropathy or diabetic neuropathy in particular. Data are still scant, but it seems that \{DM2\} may also worsen \{SAHS\} progression, by increasing the collapsibility of the upper airway and the development of central apneas and hypopneas.

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Badr, Y., S. Abd El-wanees, and M. A. Mahmoud, "The ro-vibrational spectra of CO molecule resulting from the photolysis of acetone", Journal of Photochemistry and Photobiology A: Chemistry, vol. 167, no. 2-3, pp. 159-162, 2004. AbstractWebsite
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Mabhaudhi, T., A. T. Modi, and Y. G. Beletse, "Response of taro (Colocasia esculenta L. Schott) landraces to varying water regimes under a rainshelter", Agricultural Water Management, vol. 121, pp. 102 - 112, 2013. AbstractWebsite

Taro [Colocasia esculenta (L.) Schott] is an underutilised crop in sub-Saharan Africa due to lack of agronomic research on it. There is no information describing water-use and drought tolerance of local taro landraces. Therefore, the objective of this study was to evaluate growth, yield and water-use of three South African landraces of taro under varying water regimes. Three taro landraces [Dumbe Lomfula (DL), KwaNgwanase (KW) and Umbumbulu (UM)] were planted in a rainshelter (14, October, 2010 and 8, September, 2011) at Roodeplaat, Pretoria, South Africa. Three levels of irrigation [30%, 60% and 100% crop water requirement (ETa)] were applied three times a week using drip irrigation. Emergence, plant height, leaf number, leaf area index (LAI) and stomatal conductance were measured in situ. Root length, fresh and dry mass were obtained by destructive sampling. Yield, yield components and water-use efficiency were determined at harvest. Taro landraces showed slow and uneven emergence. Stomatal conductance was respectively, 4% and 23% lower at 60% and 30% \{ETa\} relative to 100% ETa. Such a decline was clearer in the \{UM\} landrace, suggesting greater stomatal regulation in the \{UM\} landrace compared with \{KW\} and \{DL\} landraces. Plant growth parameters (plant height, leaf number and LAI) were shown to decrease by between 5% and 19% at 60% and 30% ETa, respectively, evapotranspiration relative to 100% ETa. The \{KW\} and \{DL\} landraces were shown to decrease the most while the \{UM\} landrace had moderate reductions in growth. Taro yield was 15% and 46% higher at optimum irrigation relative to 60% \{ETa\} and 30% ETa, respectively. Water-use efficiency was relatively unchanged (0.22–0.24 kg m−3) across varying water regimes. On average, the \{UM\} landrace had 113% higher \{WUE\} than the \{KW\} landrace. These findings can be used to differentiate the landraces on the basis of potential drought tolerance.

Mohamed, T. A., A. M. Mustafa, W. M. Zoghaib, M. S. Afifi, R. S. Farag, and Y. Badr, "Reinvestigation of benzothiazoline-2-thione and 2-mercaptobenzothiazole tautomers: Conformational stability, barriers to internal rotation and DFT calculations", Journal of Molecular Structure: THEOCHEM, vol. 868, no. 1-3, pp. 27-36, 2008. AbstractWebsite
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Badr, Y., M. G. Abd El-Wahed, and M. A. Mahmoud, "Photocatalytic degradation of methyl red dye by silica nanoparticles", Journal of Hazardous Materials, vol. 154, no. 1-3, pp. 245-253, 2008. AbstractWebsite
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Mahmoud, M. A., A. Poncheri, Y. Badr, and M. G. Abd El Waned, "Photocatalytic degradation of methyl red dye", South African Journal of Science, vol. 105, no. 7-8, pp. 299-303, 2009. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "Photocatalytic degradation of methyl orange by gold silver nano-core/silica nano-shell", Journal of Physics and Chemistry of Solids, vol. 68, no. 3, pp. 413-419, 2007. AbstractWebsite
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Salem, H. G., W. A. Abbas, M. S. Mansour, and Y. A. Badr, "Parametric study on the CW Nd: YAG laser cutting quality of 1.25 mm ultra low carbon steel sheets using O2 assist gas", AIP Conference Proceedings, vol. 888, pp. 186-196, 2007. Abstract
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Badr, Y., and M. A. Mahmoud, "Optimization and photophysics of cadmium selenide nanoparticles", Physica B: Condensed Matter, vol. 369, no. 1-4, pp. 278-286, 2005. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "On interaction of 193 nm excimer laser with acetone (3s Rydberg state)", Journal of Molecular Structure, vol. 748, no. 1-3, pp. 189-193, 2005. AbstractWebsite
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Badr, Y., M. G. A. E. Wahed, and M. A. Mahmoud, "On 308 nm photofragmentation of the silver nanoparticles", Applied Surface Science, vol. 253, no. 5, pp. 2502-2507, 2006. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "Manifestation of the silver nanoparticles incorporated into the poly vinyl alcohol matrices", Journal of Materials Science, vol. 41, no. 12, pp. 3947-3953, 2006. AbstractWebsite
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