Ahmad M. Farag
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View article: Development and Experimental Evaluation of a Hydrogen-Fueled Internal Combustion Engine and Emission analysis
Development and Experimental Evaluation of a Hydrogen-Fueled Internal Combustion Engine and Emission analysis Open
View article: Novel bis([triazolo[3,4-b]thiadiazoles and bis([triazolo[3,4-b][thiadiazines) with antioxidant activity
Novel bis([triazolo[3,4-b]thiadiazoles and bis([triazolo[3,4-b][thiadiazines) with antioxidant activity Open
View article: Synthesis of novel biphenyls containing thiophene, pyridazinimine and 1,3,4-thiadiazole moieties, and their effects on the mortality, oxidative stress and antioxidant enzymes in the desert locust, Schistocerca gregaria (Forskål) (Orthoptera: Acridiidae)
Synthesis of novel biphenyls containing thiophene, pyridazinimine and 1,3,4-thiadiazole moieties, and their effects on the mortality, oxidative stress and antioxidant enzymes in the desert locust, Schistocerca gregaria (Forskål) (Orthoptera: Acridiidae) Open
Biphenyls acting on insects are an intensive research area now. In order to search for novel biphenyl candidates, a series of biphenyl derivatives containing thiophene, pyridazinimine and 1,3,4-thiadiazole moieties were synthesized. Their …
View article: Synthesis and Characterization of Some New Pyridine-Carboxamide Derivatives of Potential Biological Activities
Synthesis and Characterization of Some New Pyridine-Carboxamide Derivatives of Potential Biological Activities Open
A facile synthetic routes to access some new heterocyclic systems containing potent pharmacophoric groups such as pyrazole, pyrazolo[5,1-c]-1,2,4-triazine, 1,2,4-triazino[4,3-a]benzimidazole, and pyridine moieties linked to pyridine-carbox…
View article: Characterization of harmonic modes and parasitic resonances in multi-mode superconducting coplanar resonators
Characterization of harmonic modes and parasitic resonances in multi-mode superconducting coplanar resonators Open
Planar superconducting microwave transmission line resonators can be operated at multiple harmonic resonance frequencies. This allows covering wide spectral regimes with high sensitivity, as it is desired, e.g., for cryogenic microwave spe…
View article: Antibiotic Resistance Microbial Contamination During In-vitro Maturation of Bovine and Camel Oocytes: Causes and Management
Antibiotic Resistance Microbial Contamination During In-vitro Maturation of Bovine and Camel Oocytes: Causes and Management Open
M ICROBIAL contamination in the in-vitro embryo production (IVEP) laboratories can't be underestimated even with the strictest IVEP laboratories.The current study aimed to determine the prevalence of bacterial contamination during the in-v…
View article: Synthesis and in-Silico Studies of Some New Thiazole Carboxamide Derivatives with Theoretical Investigation
Synthesis and in-Silico Studies of Some New Thiazole Carboxamide Derivatives with Theoretical Investigation Open
Based on the tremendous pharmacological activities of compounds containing thiazole and carboxamide moieties, the current study aims to prepare new series of thiazole, pyrazole, pyridine, and thiophene derivatives incorporating thiazole ca…
View article: Characterization of harmonic modes and parasitic resonances in multi-mode superconducting coplanar resonators
Characterization of harmonic modes and parasitic resonances in multi-mode superconducting coplanar resonators Open
Planar superconducting microwave transmission line resonators can be operated at multiple harmonic resonance frequencies. This allows covering wide spectral regimes with high sensitivity, as it is desired e.g. for cryogenic microwave spect…
View article: P27 Preventing unnecessary CT coronary angiography by utilising previous CT thoracic imaging: a retrospective analysis
P27 Preventing unnecessary CT coronary angiography by utilising previous CT thoracic imaging: a retrospective analysis Open
Objective CT coronary angiography (CTCA) is an effective first-line investigation in patients presenting with stable chest pain, with low-intermediate predicted risk of coronary artery disease. However, it is much less effective in patient…
View article: 152 Ct-derived fractional flow reserve – outcomes from a district general hospital-led service
152 Ct-derived fractional flow reserve – outcomes from a district general hospital-led service Open
Objectives As stipulated by the 2016 NICE Chest Pain of recent onset guidelines, Computed Tomography Coronary Angiography (CTCA) is the recommended first line investigation when stable angina cannot be excluded by clinical assessment alone…
View article: Evaluation of cytotoxic properties of two fluorescent <i>fac</i>-Re(CO)<sub>3</sub> complexes bearing an <i>N</i>,<i>N</i>-bidentate benzimidazole coligand
Evaluation of cytotoxic properties of two fluorescent <i>fac</i>-Re(CO)<sub>3</sub> complexes bearing an <i>N</i>,<i>N</i>-bidentate benzimidazole coligand Open
Tricarbonyl Re (i) complexes are piled in the intercellular junction and diffused inside the cells. This led to DNA fragmentations and both apoptotic and necrotic cell death.
View article: Investigation the Cooling Performance of Vehicle Engines Using Radiator with Nano-fluid as A Coolant
Investigation the Cooling Performance of Vehicle Engines Using Radiator with Nano-fluid as A Coolant Open
In the cooling system of the automobile engine, the water which is used as a coolant is evaporated due to high engine temperature, so it is needed to add some additives to the coolant water but it does not give it high performance compared…
View article: CCDC 2085344: Experimental Crystal Structure Determination
CCDC 2085344: Experimental Crystal Structure Determination Open
View article: CCDC 2085341: Experimental Crystal Structure Determination
CCDC 2085341: Experimental Crystal Structure Determination Open
View article: Evaluation of Laser Agitation of Nanoparticle Irrigants on Root Canal Cleanliness: An In-Vitro Study
Evaluation of Laser Agitation of Nanoparticle Irrigants on Root Canal Cleanliness: An In-Vitro Study Open
Objective:The objective of the current study was to evaluate the laser agitation of nanoparticle irrigants on root canal cleanliness.Materials and methods: A total of 60 sounds freshly-extracted maxillary central incisor teeth were collect…
View article: Fast and Efficient RP-HPLC Method for Simultaneous Determination of Water-Soluble Vitamins in Some Nutraceutical Supplements
Fast and Efficient RP-HPLC Method for Simultaneous Determination of Water-Soluble Vitamins in Some Nutraceutical Supplements Open
The purpose of this study is the development of analytical method for simultaneous determination of water-soluble vitamins (B1, B2, B3, B6, B9, B12 and vitamin C) in dietary supplement syrup, multivitamins and mineral dietary supplement sy…
View article: Determination of water soluble vitamins in Egyptian Honey by RP-HPLC
Determination of water soluble vitamins in Egyptian Honey by RP-HPLC Open
The purpose of this study is to evaluate water soluble vitamins (C, B 1 , B 2 , B 3 , B 6 , B 9 and B 12 ) in honey from honey bees feed on Spring flowers, Sweet marjoram, Sun flower, Clover flowers, Citrus fruits and Black seed using grad…
View article: Impact of vascular endothelial growth factor on prognosis of patients with hepatocellular carcinoma treated with angiotensin-converting-enzyme inhibitors
Impact of vascular endothelial growth factor on prognosis of patients with hepatocellular carcinoma treated with angiotensin-converting-enzyme inhibitors Open
Hepatocellular carcinoma (HCC) is the sixth most common cancer and the third leading cause of cancer-related deaths worldwide.Angiotensin-converting-enzyme inhibitors (ACEs) have a role in reducing malignant changes of the liver, and some …
View article: Microwave promoted Heck and Suzuki coupling reactions of new 3-(5-bromobenzofuranyl)pyrazole in aqueous media
Microwave promoted Heck and Suzuki coupling reactions of new 3-(5-bromobenzofuranyl)pyrazole in aqueous media Open
Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions of 3-(5-bromobenzofuran-2-yl)-1H-pyrazole with various arylboronic acids and terminal olefins, respectively, were investigated using a benzothiazole-oxime palladium(II) complex, und…
View article: The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies
The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies Open
View article: Synthesis and DFT study of novel pyrazole, thiophene, 1,3-thiazole and 1,3,4-thiadiazole derivatives
Synthesis and DFT study of novel pyrazole, thiophene, 1,3-thiazole and 1,3,4-thiadiazole derivatives Open
Regioselective facile synthesis of innovative heterocycles from the reaction of 2-cyano-N-cyclohexylacetamide (3) with hydrazonoyl chloride (4) in basic condition afforded amino pyrazole derivative 6. The behavior of acetamide 3 with pheny…
View article: Regioselective synthesis and DFT study of novel fused heterocyclic utilizing Thermal heating and Microwave Irradiation
Regioselective synthesis and DFT study of novel fused heterocyclic utilizing Thermal heating and Microwave Irradiation Open
espanolSintesis regioselectiva simple de los heterociclos innovadores de la reaccion del 2-ciano-N-ciclohexilacetamida (3) con N, N- dimetilformamida dimetil acetal (DMF-DMA) para conseguir (E)-2-ciano-Nciclohexil-3-(dimetilamino) acrilami…
View article: Novel pyridine-based Pd(II)-complex for efficient Suzuki coupling of aryl halides under microwaves irradiation in water
Novel pyridine-based Pd(II)-complex for efficient Suzuki coupling of aryl halides under microwaves irradiation in water Open
View article: A Facile Access and Computational Studies of Some New 4,5'-Bipyrazole Derivatives
A Facile Access and Computational Studies of Some New 4,5'-Bipyrazole Derivatives Open
4,5'-Bipyrazoline-5-carboxylate ester 4 was regioselectively obtained from 1,3-dipolar cycloaddition reaction of nitrilimine 2 with ethyl 2-cyano-5-phenylpenta-2,4-dienoate (3).The bipyrazoline-5-carboxylate ester 4 underwent thermal elimi…
View article: Synthesis, biological evaluation, and molecular docking studies of new pyrazol‐3‐one derivatives with aromatase inhibition activities
Synthesis, biological evaluation, and molecular docking studies of new pyrazol‐3‐one derivatives with aromatase inhibition activities Open
A new series derived from 4‐(2‐chloroacetyl)‐1,2‐dihydro‐1,5‐dimethyl‐2‐phenyl‐3H‐pyrazol‐3‐one was synthesized, characterized and its pharmacological activity toward aromatase enzyme inhibition was screened and compared to the reference n…
View article: Synthesis, Biological Evaluation of 1,3,4-Oxadiazole, Triazole and Uracil Derivatives from Poly (ethylene terephthalate) Waste
Synthesis, Biological Evaluation of 1,3,4-Oxadiazole, Triazole and Uracil Derivatives from Poly (ethylene terephthalate) Waste Open
OLY(ethylene terephthalate) (PET) was hydrolyzed in aqueous NaOH using solar energy.PET is used as versatile reagent for the synthesis of a variety of heterocyclic compounds.Uracil (6a, b), 1,3,4oxadiazole (9, 12a, b), 1,3,4-triazole (10, …
View article: Microwave-assisted synthesis of 2-acetyl-5-arylthiophenes and 4-(5-arylthiophen-2-yl)thiazoles via Suzuki coupling in water
Microwave-assisted synthesis of 2-acetyl-5-arylthiophenes and 4-(5-arylthiophen-2-yl)thiazoles via Suzuki coupling in water Open
2-Acetyl-5-bromothiophene and 4-(5-bromothiophen-2-yl)-2-methyl-1,3-thiazole, as deactivated bromide candidates, were prepared and used for Suzuki cross-coupling reactions with a number of aryl(hetaryl)boronic acids in water or DMF as solv…
View article: Isolation and structure elucidation of acetyl cholinesterase inhibitor from Gyrostoma helianthus of the Red Sea, Egypt
Isolation and structure elucidation of acetyl cholinesterase inhibitor from Gyrostoma helianthus of the Red Sea, Egypt Open
The present study was carried out to isolate, purify and elucidate the structure of low molecular weight bioactive compounds from sea anemone, Gyrostoma helianthus of the Red Sea environment. The obtained results indicated that the ethanol…
View article: Molecular Characteristics and Antibacterial Activity of Alginate Beads Coated Chitosan Polyacrylonitrile Copolymer Loaded Silver Nanocomposite
Molecular Characteristics and Antibacterial Activity of Alginate Beads Coated Chitosan Polyacrylonitrile Copolymer Loaded Silver Nanocomposite Open
Chitosan grafted with acrylonitrile loaded silver nanocomposite coated alginate beads were successfully prepared first, alginate beads were synthesized with homogenous structures sized rang ing from 1.5 to 2 mm. The alginate beads were the…