A5101423132- Synthesis and biological activity
- Orbital Angular Momentum in Optics
- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Cardiac Imaging and Diagnostics
- Synthesis and Characterization of Heterocyclic Compounds
- Synthesis of heterocyclic compounds
- Synthesis and Biological Evaluation
- Acute Myocardial Infarction Research
- Multicomponent Synthesis of Heterocycles
- Antenna Design and Analysis
- Coronary Interventions and Diagnostics
- Electromagnetic Scattering and Analysis
- Cardiovascular Function and Risk Factors
- Quantum optics and atomic interactions
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Cardiac Valve Diseases and Treatments
- Mycobacterium research and diagnosis
- Synthesis of Organic Compounds
- Phenothiazines and Benzothiazines Synthesis and Activities
- Synthesis and pharmacology of benzodiazepine derivatives
- Bioactive Compounds and Antitumor Agents
- Cardiac Structural Anomalies and Repair
- Synthesis and Reactions of Organic Compounds
- Infective Endocarditis Diagnosis and Management
King Khalid University
2016-2025
October 6 University
2021-2025
Hôpital Mustapha Pacha
2025
Boston Medical Center
2025
Cairo University
2013-2024
University of Pennsylvania
2023-2024
Kafrelsheikh University
2020-2024
King Faisal University
2017-2024
German University in Cairo
2024
King Abdulaziz Hospital
2024
A general method, based on susceptibility tensors, is proposed for the synthesis of metasurfaces transforming arbitrary incident waves into reflected and transmitted waves. The method exhibits two advantages: 1) it inherently vectorial, therefore better suited full vectorial (beyond paraxial) electromagnetic problems; 2) provides closed-form solutions, extremely fast. Incidentally, reveals that a metasurface fundamentally capable to transform up four independent wave triplets (incident,...
The paper presents partial overview of the mathematical synthesis and physical realization metasurfaces, related illustrative examples. consists in determining exact tensorial surface susceptibility functions metasurface, based on generalized sheet transition conditions, while deals with both metallic dielectric scattering particle structures. examples demonstrate capabilities techniques, thereby showing plethora possible metasurface field transmission subsequent applications. first example...
ZnO is an important II-IV n-type direct bandgap semiconductor material that has exhibited wide consideration due to its applications in optoelectronic devices. In the present investigation, untreated and plasma-treated NPs were fabricated by a sol-gel route analyzed with XRD, Raman, UV-Vis spectra, I–V characteristic techniques. To be used electronic applications, nanoparticles subjected plasma treatment process tune their optical, vibrational mode, structural electrical properties. XRD...
Water electrolysis is considered as one of the alternative potential approaches for producing renewable energy. Due to sluggish kinetic nature oxygen evolution reaction (OER), it encounters a significant overpotential achieve water electrolysis. Hence, advancement cost-effective transition metal-based catalysts toward splitting has gained global attention in recent years. In this work, doping Fe over amorphous NiWO4 increased OER activity effectively and achieved stable alkaline medium,...
Abstract A new series of quinoxaline‐sulfonamide derivatives 3 – 12 were synthesized using fragment‐based drug design by reaction quinoxaline sulfonyl chloride (QSC) with different amines and hydrazines. The evaluated for antidiabetic anti‐Alzheimer's potential against α‐glucosidase, α‐amylase, acetylcholinesterase enzymes. These showed good to moderate potency α‐amylase α‐glucosidase inhibitory percentages between 24.34 ± 0.01%–63.09 0.02% 28.95 0.04%–75.36 0.01%, respectively....
Abstract In this paper, we study the effects of turbulent atmosphere on degree polarization a partially coherent electromagnetic beam, which propagates through it. The beam is described by 2⊗2 cross–spectral density matrix and assumed to be generated planar, secondary, Gaussian Schell–model source. analysis based recently formulated unified theory coherence extended Huygens–Fresnel principle. We behaviour in intermediate zone, i.e. region space where properties atmospheric turbulence are...
It was shown recently that the basic properties of a fluctuating electromagnetic beam can be derived from knowledge 2 x cross-spectral density matrix electric field in source plane. However, not every such represents will generate beamlike field. We derive conditions must satisfy for to an Gaussian Schell-model beam.
We investigated the effect of sunitinib on locally advanced primary renal carcinoma tumors and ability to facilitate subsequent surgery.Patients with an unresectable tumor, or without distant metastases, received 50 mg continuous daily dosing in a phase II trial. Computerized tomography was performed every 12 weeks determine surgical resectability. The end point trial percentage patients cell initially who could undergo nephrectomy after therapy.Of 30 enrolled study (19 metastases) 28 (35...
Coumarins units have recently emerged as a hot topic of research due to their diverse applications. Their synthesis is partly based on classical methodologies such Pechmann reaction or Knoevenagel condensation, but it also sparked the discovery completely new pathways. In very recent years so-called vertically expanded coumarins were synthesized, effectively expanding portfolio existing architectures. This review serves guide through strategies coumarins.
A series of 3-[(1H-pyrazol-3-yl)imino]indolin-2-one derivatives were designed using the molecular hybridization method, characterized different spectroscopic techniques, and evaluated for their in vitro antimicrobial activity. Most target compounds demonstrated good to moderate activity compared with ciprofloxacin fluconazole. Four (8b, 9a, 9c, 10a) showed encouraging results, minimal inhibitory concentration (MIC) values (53.45-258.32 µM) comparable those norfloxacin (100.31-200.63...
The enhancement of the PLA thermomechanical properties is significant due to its suitability as a replacement for primary synthetic polymer use in diverse industrial production. amphiphilic chitin was used compatibilizer PLA/starch biocomposite. plasticised polylactic acid blended with starch, and studied enhanced viscoelastic properties. Chitin modified using acetylated substitution reaction biocomposite prepared combined compression melt extrusion techniques. biocomposite's...