Publications by authors named "H Ragab"
This study investigates a class of materials known as polymer nanodielectrics, which are formed by incorporating ceramic fillers into polymers. These materials offer the unique advantage of tunable electrical and optical properties. The research focuses on the incorporation of high-purity stannic oxide nanoparticles (SnO NPs) into a ternary blend matrix of hydroxypropyl methylcellulose (HPMC) and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) using a solution casting method.
View Article and Find Full Text PDFCopper oxide nanoparticles (CuO NP) were incorporated into a hydroxypropyl cellulose (HPMC) and sodium alginate (NaAlg) matrix through a casting method to create bio-nanocomposite films. XRD analysis confirmed the semi-crystalline nature of the HPMC/NaAlg matrix, with a broad peak at 2θ = 21.22°, which decreased in intensity as CuO concentration increased, indicating a shift towards an amorphous structure.
View Article and Find Full Text PDFArticle Synopsis
- The study evaluated the effectiveness of various scoring systems (APACHE-II, SOFA, CASUS, and SAVE) in predicting outcomes for patients on venoarterial extracorporeal membrane oxygenation (VA-ECMO) in a cardiothoracic intensive care setting.
- This observational study involved 142 patients admitted to a tertiary care center's CTICU after VA-ECMO insertion, using electronic health records for data collection.
- Results showed that higher scores in APACHE-II, SOFA, and CASUS were associated with increased mortality, while pre-ECMO lactate and creatinine levels, along with complications during ECMO, also significantly correlated with patient survival.
Interest has been piqued in c-Met and Pim-1, potential new cancer treatment targets. A variety of triazolo[4,3-]pyridazine derivatives were synthesized to create powerful dual c-Met/Pim-1 inhibitors having the pharmacophoric elements of both enzyme inhibitors. All derivatives were screened for their cytotoxic effects on 60 cancer cell lines.
View Article and Find Full Text PDFBackground: The impact of Ramadan fasting on various neurological emergencies remains relatively unexplored. This study aimed to clarify the incidence and pattern of the different neurological emergencies in Ramadan compared to Shaaban.
Methods: In this cross-sectional study, all adult patients attending the emergency room at two Egyptian centers with neurological emergencies during Shaaban and Ramadan were evaluated.