Publications by authors named "B Khelifa"
Introduction: Polyorchidism, defined as the presence of more than two testicles, is a rare congenital abnormality of the male genital tract. There is no consensus regarding the management of supranumerary testis (SNT) due to its rareness. To the best of our knowledge, this is the first report of leiomyoma in SNT.
View Article and Find Full Text PDFThe present paper discuss the structural and vibrational properties of polyoxyethylene glycol glycerides (Gelucire 50/13) during the hydration with increasing water from 0% to 80%. The Gelucire 50/13 used as sustained release matrix forming agent in pharmaceutical applications and it was essentially studied by Small and Wide Angle X-ray Scattering (SWAXS), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy according to the rate of hydration. The hydration behavior of this amphiphilic excipient has been investigated in the spectral range 4000-0cm in Raman spectroscopy, and 4000-600cm in FTIR.
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- The study focuses on the purification and biochemical characterization of XYN35, a thermostable xylanase enzyme from a newly identified thermophilic strain, Caldicoprobacter algeriensis, isolated from a hot spring in Algeria.
- XYN35 demonstrated peak activity after 24 hours at 70 °C, with a maximum enzyme activity of 250 U/mL, and was successfully purified using heat treatment and chromatography techniques.
- The enzyme operates optimally at pH 11 and 70 °C, is activated by certain metal ions, and shows potential applications in the pulp bleaching industry due to its effective breakdown of xylan into xylose and related products.
The effect of the specimen inclination on the electron distribution at the specimen surface in an HPSEM was investigated by Monte Carlo simulation. A broadening of the electron profile versus the tilt angle was obtained and a relationship between the r(0.9) radius and this tilt angle is proposed.
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