The present work aimed at differentiating five species from Saudi Arabia according to their morphology and the ability in nanoparticle formulation. Biogenic silver nanoparticles (AgNPs) were synthesized from leaf extracts of the five species and characterized by different techniques. Fourier-transform infrared spectroscopy (FT-IR) was used to identify the phyto-constituents of species.
View Article and Find Full Text PDFLibman-Sacks endocarditis (LSE) is a rare disease found incidentally in postmortem autopsies, characterized by microscopic to large verrucous vegetation on the cardiac valves, the most affected site is the mitral valve followed by the aortic valve. Females of reproductive age were observed as the most affected individuals as found in studies. Most individuals with LSE are asymptomatic and generally discovered lately when they presented with thromboembolic disorders such as stroke, cognitive disabilities, and death.
View Article and Find Full Text PDFIn this study, we have opened a great route to fabricate a high-performance nanocomposite for various functional applications based on the composite of a natural stone. A clay sample (black shale (B.Sh)) was collected from the Abu-Tartur area in Egypt.
View Article and Find Full Text PDFA monopole antenna operated at 2.45 GHz and embedded with artificial magnetic conductor (AMC) for wearable communication systems is investigated in this article. The proposed antenna is composed of a metalized loop radiator with a coplanar waveguide microstrip feedline which is affixed on a cotton fabric material substrate.
View Article and Find Full Text PDFMicrocephalic primordial dwarfism is a group of disorders that result in growth restriction and multiple morbidities. The condition is subdivided into three categories, with microcephalic osteodysplastic primordial dwarfism type II (MOPDII) being the most prevalent. Globally, only a few cases have been reported, with only available information about these disorders described in the literature.
View Article and Find Full Text PDFBentonite sample enriched in organic matters (oil shale) was functionalized with -SOH sulfonated carbonaceous bentonite (S-CB) by sulfonation process as a low-cost and effective acidic catalyst for the transesterification spent sunflower oil (SFO). The sulfonation effect was followed by several analytic techniques including X-ray diffraction, Fourier transform infrared, and scanning electron microscopy analysis. The catalytic performance of the sulfonated product was evaluated based on a statistical design which was built according to the response surface methodology and the central composite rotatable design.
View Article and Find Full Text PDFSeveral populations of (Brassicaceae) occurring in Egypt are investigated from the micromorphological point of view (seed ornamentations). The species is known to show a notable phenotypic plasticity and five morphotypes was identified in the past. Furthermore, a soil analysis as well as a study of the fungal species from anthers were carried out.
View Article and Find Full Text PDFis one of the most problematic invasive trees in tropical and subtropical regions. Understanding driving forces affecting the potential global distribution would help in managing its current and future spread. The role of climate on the global spatial distribution of has been well studied, but little is known about the role of soil and human impacts as potential drivers.
View Article and Find Full Text PDFGlob Cardiol Sci Pract
December 2020
Patients with transposition of great arteries, with intact interventricular septum (TGA-IVS) and deconditioned left ventricle, represent a considerable challenge in developing countries. The modified Mustard operation was shown to provide a significant improvement for these patients, particularly by enhancing atrial functions and left ventricular filling. Yet, the problems of the systemic right ventricular dysfunction and the resulting secondary tricuspid regurgitation (TR) remain to be of major concern.
View Article and Find Full Text PDFClimate change is an important driver of biodiversity loss and extinction of endemic montane species. In China, three endemic spp. ( var.
View Article and Find Full Text PDFUnlabelled: Fluoroquinolones and aminoglycosides offer effective therapy for extended-spectrum beta-lactamase (ESBL)-producing enterobacterial infections, but their usefulness is threatened by increasing resistant strains.
Objective: This study was conducted to demonstrate the phenotypic outcomes of the coexistence of genetic determinants mediating resistance to extended-spectrum cephalosporins and quinolones in enterobacterial isolates collected from patients with health-care-associated infections in Egypt.
Methods: ESBL phenotype was determined using double-disk synergy test (DDST).