Purpose: To evaluate the clinical outcomes of implanting two symmetrical Kerarings via a femtosecond laser in grade three keratoconus.
Patients And Methods: This was a retrospective nonrandomized controlled clinical study. The study included one eye from each of twenty-three patients, all with Grade 3 keratoconus as classified by the Amsler-Krumeich classification.
In this report, the nonlinear optical (NLO) properties of titanium dioxide nanoparticles (TiO NPs) have been explored experimentally using femtosecond laser light along with the Z-scan approach. The synthesis of TiO NPs was carried out in distilled water through nanosecond second harmonic Nd:YAG laser ablation. Characterization of the TiO NPs colloids was conducted using UV-visible absorption spectroscopy, transmission electron microscopy (TEM), inductively coupled plasma (ICP), and energy-dispersive X-ray spectroscopy (EDX).
View Article and Find Full Text PDFThe aim of this study was to report our experience in the surgical treatment of compound depressed fractures over the venous sinuses with special highlights on the prediction and dealing with intraoperative sinus injury. We conducted a retrospective review of all patients who underwent surgery for compound depressed fractures overlying the dural venous sinuses in our hospital between January 2019 and December 2021. A total of 34 patients were included in our study.
View Article and Find Full Text PDFTransdermal drug delivery systems are a promising option for the treatment of rheumatoid arthritis (RA) because they can lower systemic adverse effects of immunosuppressants. Janus kinase (JAK) inhibitors were found to be effective for the treatment of RA by inhibiting the JAK-STAT pathway and preventing autoimmune joint destruction. The aim of this study is to deliver tofacitinib (a JAK 1 and 3 inhibitor) through mannose-decorated transferosomes (MDTs) directly to inflamed joints.
View Article and Find Full Text PDFA data set was developed for research on word recognition and comprehension as well as for vocabulary knowledge estimation of Arabic-English bilingual speakers (i.e., an understudied population).
View Article and Find Full Text PDFZiziphus leaf extract (ZEX), chitosan nanoparticles (CS NPs) and Ziziphus leaf extract loaded chitosan nanoparticles (ZEX-CS NPs) were prepared in this study and after chemical analysis and characterization, they were used in wastewater purification. The study also aimed to establish, using an animal model, the feasibility of employing treated water in drinking applications. ZEX-CS NPs were prepared by ionic gelation method.
View Article and Find Full Text PDFIn this work, the nonlinear optical (NLO) properties of CuO nanoparticles (CuO NPs) were studied experimentally using the pulsed laser ablation (PLA) technique. A nanosecond Nd: YAG laser was employed as the ablation excitation source to create CuO NPs in distilled water. Various CuO NPs samples were prepared at ablation periods of 20, 30, and 40 min.
View Article and Find Full Text PDFIn this study, four Artificial intelligence (AI) - based machine learning models were developed to estimate the Residual compressive strength (RCS) value of concrete supported with nano additives of Nanocarbon tubes (NCTs) and Nano alumina (NAl), after exposure to elevated temperatures ranging from 200 to 800 degrees. These models were developed via adapting meta- heuristic models including the Water cycle algorithm (WCA), Genetic algorithm (GA), and classical AI models of Artificial neural networks (ANNs), Fuzzy logic models (FLM), in addition to the statistical method of Multiple linear regression (MLR). 156 post heating experimental results available as a literature data (represents four input parameters of temperature change, heat exposure duration, nanomaterial type, and replacement proportion) are used to achieve the study's objective.
View Article and Find Full Text PDFPolyhydroxybutyrate (PHB) is considered as a hope for bioplastic production, which can serve as a sustainable alternative. Utilizing feedstock as substrate is widely explored for the production but wood waste, which is abundant in cellulose, hemicellulose and lignocellulose, has limited studies for PHB production. Herein, wood waste is used as a biobased feedstock Hydrolyses of wood waste was done using sulphuric acid (HSO) to break down of cellulose and hemicellulose into simple carbon forms.
View Article and Find Full Text PDFWastewater is discharged in large amounts from different industries; thus, wastewater treatment is currently one of the main concerns, advanced oxidation is a promising technique for wastewater treatment. This research aims to synthesize magnetite nanoparticles and study their application in wastewater treatment via adsorption and advanced oxidation processes. Magnetite nanoparticles were synthesized via coprecipitation technique between ferric and ferrous sulfate at a molar ratio of 2:1.
View Article and Find Full Text PDFMed Hypothesis Discov Innov Ophthalmol
July 2024
Although, different plant species were utilized for the fabrication of polymorphic, hexagonal, spherical, and nanoflower ZnO NPs with various diameters, few studies succeeded in synthesizing small diameter ZnO nanorods from plant extract at ambient temperature. This work sought to pioneer the ZnO NPs fabrication from the aqueous extract of a Mediterranean salt marsh plant species Limoniastrum monopetalum (L.) Boiss.
View Article and Find Full Text PDFHydrothermal carbonization was applied to taro peel wastes to produce hydrochars using a facile and environmentally friendly process. Four different entities were prepared: hydrochar (TPh), phosphoric-activated hydrochar (P-TPh), and silver@hydrochars (Ag@TPh, Ag@P-TPh). The elemental compositions of the single and composite hydrochars were confirmed by EDX.
View Article and Find Full Text PDFOsteosarcoma (OS) is the most common type of primary bone malignancy. Common genetic variants including single nucleotide polymorphisms (SNPs) have been associated with osteosarcoma risk, however, the results of published studies are inconsistent. The aim of this study was to systematically review genetic association studies to identify SNPs associated with osteosarcoma risk and the effect of race on these associations.
View Article and Find Full Text PDFMedicine (Baltimore)
November 2023
Background: There have been controversial findings from recent studies regarding anthracyclines use and the subsequent risk of arrhythmias. This study aimed to evaluate the existing evidence of the risk of arrhythmias in patients treated with anthracyclines.
Methods: PubMed, Scopus, and Web of Science databases were searched up to April 2022 using keywords such as "anthracycline" and "arrhythmia.
Introduction: The goal of this study is to evaluate the effectiveness of single-incision mini-sling in the surgical treatment of postmenopausal urodynamic stress urinary incontinence (SUI) compared to the standard trans-obturator mid-urethral sling.
Material And Methods: This prospective study was carried out in two tertiary centres; Al-Azhar University Maternity & Urology Hospitals. A total of 120 postmenopausal women with urodynamic SUI were randomized to undergo either single-incision mini-sling ( = 60) or standard trans-obturator mid-urethral sling procedure ( = 60) from May 2019 until Oct 2021.
Water shortages are one of the problems caused by global industrialization, with most wastewater discharged without proper treatment, leading to contamination and limited clean water supply. Therefore, it is important to identify alternative water sources because many concerns are directed toward sustainable water treatment processes. Nanofiltration membrane technology is a membrane integrated with nanoscale particle size and is a superior technique for heavy metal removal in the treatment of polluted water.
View Article and Find Full Text PDFBackground: Transurethral resection (TUR) followed by adjuvant therapy is still the treatment of choice of Non-Muscle-Invasive Bladder Urothelial Carcinoma (NMIBUC). However, recurrence is one of the most troublesome features of these lesions. Early second resection and adjuvant BCG therapy has been shown to improve the outcome.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
June 2024
In this work, cotton stalks (Gossypium barbadense) and date palm stones (Phoenix dactylifera) have been used as biosorbents to remove cadmium; Cd(II), lead; Pb(II), and zinc; Zn(II) from mono- and multi-solutions. Each biosorbent was characterized using SEM-EDX, and FT-IR. The findings showed that pH, dose, contact time, metal concentration, and particle size affect the treatment process.
View Article and Find Full Text PDFBackground: Uretero-pelvic junction obstruction is the most common form of congenital anomaly of the kidney and urinary tract with an incidence of about 1/1.000-1.500 of births and the aetiology and pathogenesis of this anomaly are still unclear until now.
View Article and Find Full Text PDFThis study was designed to evaluate a new therapeutic approach for inactive ovaries based on the epidural administration of a GnRH agonist (Receptal) and an investigation of the impact of this treatment on the hormonal, oxidant/antioxidant and micro- and macro-element profiles. Sixty cows with postpartum anestrus were divided into two groups: the first group (group R, n = 30) was administered an epidural injection of Receptal, while the second group (group C, n = 30) received saline and was considered the control group. Evaluation of hormonal (progesterone, FSH, LH, testosterone, and cortisol), oxidant/antioxidant (MDA, SOD, GPx and TAC) as well as micro- and macroelement (calcium, phosphorus, manganese and magnesium) profiles was done in serum.
View Article and Find Full Text PDFThe increased demand for clean water especially in overpopulated countries is of great concern; thus, the development of eco-friendly and cost-effective techniques and materials that can remediate polluted water for possible reuse in agricultural purposes can offer a life-saving solution to improve human welfare, especially in view of climate change impacts. In the current study, the agricultural byproducts of palm trees have been used for the first time as a carbon source to produce graphene functionalized with ferrocene in a composite form to enhance its water treatment potential. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy, X-ray diffraction (XRD), ultraviolet-visible, Fourier transform infrared spectroscopy, zeta potential, thermogravimetric analysis, and Raman techniques have been used to characterize the produced materials.
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