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Retropharyngeal space is a rare site of occurrence of chordomas. We present two cases of retropharyngeal chordoma with their imaging features. A brief review of the chordomas is discussed along with role of imaging in extraosseous chordomas.

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This work evaluated the antimicrobial efficacy of kaolin clay and its loaded forms with carbon nanotubes (CNTs) and silver nanoparticles (AgNPs) against bacterial isolates from different water supplies (tap, underground and surface water) in addition to wastewater. A total of 160 water samples were collected from different water sources in the investigated districts. Samples were cultured for isolation and serological identification of pathogenic bacteria. AgNPs were synthesized by a typical one-step synthesis protocol, where CNTs were carried out in a reactor employing the double bias-assisted hot filament chemical vapor deposition method. Both were characterized using transmission electron microscopy, infrared and X-ray fluorescence (XRF) spectroscopy. The antimicrobial efficacy of each of natural kaolin clay, AgNPs- and CNTs-loaded clays were evaluated by their application in four concentrations (0.01, 0.03, 0.05 and 0.1 ppm) at different contact times (5 min, 15 min, 30 min and 2 h). AgNPs-loaded clays at concentrations of 0.05 and 0.1 mg/l for 2 h contact time exhibited a higher bactericidal efficacy on Escherichia coli and Salmonella spp. (70, 70, 80 and 90%, respectively) compared to CNTs-loaded clay. Concluding, the application of AgNPs-loaded clay for removal of water bacterial contaminants at a concentration of 0.1 ppm for 2 h contact times resulted in highly effective removals.

AimTo assess the role of porous collagen in deep sclerectomy (DS), with and without trabeculo-Descemet membrane (TDM) rupture.Patients and methodsForty-six eyes with different types of open-angle glaucoma and medically uncontrolled intraocular pressure (IOP) were selected. DS was performed in all cases. Ologen was implanted as a single large piece in the scleral lake and subconjunctival space in all cases with and without TDM rupture.ResultsA total sample of 46 open-angle glaucoma patients were included in the study. The mean ± standard deviation (SD) IOP was 25.6 mm Hg ± 10.6 (range 12-58 mm Hg) pre-operatively. On follow-up, the mean ± SD IOP was 6.1 mm Hg ± 3.7 (range 2-20 mm Hg) 1 day postoperatively and 9.3 mm Hg ± 4.0 (range 4-23 mm Hg) after 1 month of follow-up, at 12 months the IOP was at 12.1 mm Hg ± 3 (range 8-18 mm Hg). The overall mean ± SD IOP reduction percentage was 48.3% ± 21.3 (range 0.0-86.2). Comparing mean IOP reductions at last follow-up between TDM rupture cases and non-TDM cases (Mann-Whitney test), the mean ± SD IOP reduction in TDM rupture patients was 12.1 ± 8.0 mm Hg (range 2-27) meanwhile, in non-TDM rupture patients it was 14.3 ± 11.4 mm Hg (range 0-50). However, the difference in IOP reduction between the two groups was not significant. (p = 0.689)ConclusionPorous collagen can enhance the results of DS; also, it helps to proceed with DS in cases of TDM rupture without converting to trabeculectomy.How to cite this article: Elbably A, Othman TM, Mousa A, Elridy M, Badawy W, Elbably M. Deep Sclerectomy with Porous Collagen in Open-angle Glaucoma, Short-term Study. J Curr Glaucoma Pract 2018;12(2):85-89.

Material handling is a necessary, but expensive activity in factories. Autonomous robot technology can help reduce the cost and relax humans from the exhaustive job of driving forklifts. In this paper, we describe the mechatronics design and implementation of an autonomous forklift. The robot can perceive the 3D dynamic world and can plan its motion autonomously to lift materials from a source to target locations. Dynamic map of the world is built using data from a Microsoft Kinect head and readings from wheel encoders, thus enabling the robot to avoid obstacles and reach target locations safely. Experiments showed success of the robot to move and load the cargo to target locations.

This paper describes a new digital image processing algorithm which is concerned with the automatic detection and measurement of the foveal avascular zone (FAZ) in.Fundus Fluorescein Angiographies (FFA). FFA is used in ophthalmic practice to evaluate vascular retinopathies and choroidopathies. In the proposed algorithm, projection in the horizontal and vertical directions will be applied to determine the location of the dark regions in the test image that represents the region of interest (FAZ). Then. image is segmented based on its gray level values by using thresholding techniques. Morphological operators and Sobel edge detector are then used to detect and localize the contour of the FAZ.

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