501 results for “derived”

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Research ArticleOpen accessEvery word in the titleComparison of Maximum Gear-Tooth Operating Bending Stresses Derived from Niemann's Analytical Procedure and the Finite Element MethodAndonios D. Tsolakis, Konstandinos G. RaptisProblem statement: Main purpose of this study was to investigation toothed gear loading problems using the Finite Element Method. Approach: We used Niemann’s equations to compare maximum bending stress which was developed at critical gear-tooth flank point during gear meshing, applied for three distinct spur-gear sizes, each having different teeth number, module and power rating. Results: The results emerging after … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 3 · 18 Aug 2011 · 7,695 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleThe Investigation of 1H NMR Spectra of 2,3-Dihydro-4-Pyridinones Derived from BisdemethoxycurcuminWisam A. Radhi, Bahjat A. SaeedProblem statement: The studied dihydropyridones were synthesized via microwave assisted reaction of bisdemethoxycurcumin and amines or amine acetates which is new approach in the synthesis of this important class of compounds and the deep study of their NMR spectra seems reasonable. Approach: 1H NMR spectra of dihydropyridones derived from curcumin were discussed and their structures were elucidated accordingly. Results: The … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,186 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleAntiviral and Quantitative Structure Activity Relationship Study for Dihydropyridones Derived from CurcuminBahjat A. Saeed, Kawkab Y. Saour, Rita S. Elias, Najim A. Al-MasoudiProblem statement: Pyridones are known to have variety of biological activities like antitumor, antibacterial, anti-inflammatory and antimalarial activities. This study presents antiviral evaluation of dihydropyridones derived from curcumin, as well as curcumin for comparison. Approach: The compounds evaluated for their in vitro antiviral activities against the viruses: HIV-1, Bovin viral Diarrhea, Yellow Fever, Reovirus 1, Herpesvirus 1, Vaccinia, Vescular Stomatitis, … …American Journal of Immunology, Vol. 6, Issue 2 · 30 Jun 2010 · 8,151 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleAntitumor and Quantitative Structure Activity Relationship Study for Dihydropyridones Derived from CurcuminBahjat A. Saeed, Kawkab Y. Saour, Rita S. Elias et al.Problem statement: Pyridones are known to have variety of biological activities like antitumor, antibacterial, antiinflamatory and antimalarial activities. This study presented antitumor evaluation of dihydropyridones derived from curcumin, as well as curcumin for comparison. Approach: The compounds evaluated for a preliminary estimation of the in vitro tumor inhibiting activity against 11 of tumor cell lines by using Microculture Tetrazolium assay … …American Journal of Immunology, Vol. 6, Issue 1 · 31 Mar 2010 · 8,262 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleSynthesis and Characterization of Organotin(IV) Complexes Derived of 3-(Dimethylamino)benzoic Acid: Cytotoxic Assay on Human Liver Carcinoma Cells (HepG2)Yip-Foo Win, Siang-Guan Teoh, Tengku-Sifzizul Tengku-Muhammad et al.Problem statement: Many studies have been carried out on organotin(IV) complexes derivative of carboxylate anions. However, the synthesis and characterization as well as the cytotoxic assay of organotin(IV) carboxylate derived of 3-(dimethylamino)benzoic acid have not been studied. Approach: Organotin(IV) carboxylate complexes derivative of 3-(dimethylamino)benzoic acid, 3-[N(CH3)2]C6H4COOH have been successfully synthesized. Two types of diorganotin(IV) complexes, [{3-[N(CH3)2]C6H4COO(R)2Sn}2O]2 dimer (R = methyl … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 8,310 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleGrowth of Bone Marrow Derived Osteoblast-Like Cells into Coral Implant Scaffold: Preliminary Study on Malaysian CoralK. A. AL-SalihiProblem statement: Biomaterial fabrication in Malaysia started as a consequence of the demand for cheaper implant materials. Various biomaterials have been developed utilizing local resources like Malaysian coral. Locally processed Malaysian coral need to be complemented with proper evaluation and testing including toxicology, biocompatibility, mechanical properties, physicochemical characterization and in vivo testing. The present study was carried out to assess … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 3 · 30 Sep 2009 · 6,590 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleRapamycin Inhibits Cystogenesis by Cystic Epithelial Cells Derived from Human Autosomal Dominant Polycystic KidneysGerard Elberg, Teresa V. Lewis, Lijuan Chen, Martin A. TurmanAutosomal dominant polycystic kidney disease (ADPKD) is one of the most common genetic disorders and carries a high health burden since it progresses to renal failure in half of the afflicted individuals by the 6th decade of life. Currently, there is no effective treatment to slow the progression of ADPKD. Rapamycin, a drug most commonly used as an immunosuppressive agent … …American Journal of Pharmacology and Toxicology, Vol. 1, Issue 4 · 31 Dec 2006 · 7,101 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleComparative Forensic Profiling of Primer-Derived Inorganic Gunshot Residues Using SEM-EDX SpectroscopyAhmed M. Bendary Salem, Aldo Barbaro, Bolaji OladipoGunshot Residue (GSR) analysis presents a significant challenge in forensic science due to the need to detect and identify minute traces of powders and initiating compositions formed during the chemical decomposition and deflagration processes within cartridge cases. This research is a qualitative comparative profiling study, designed to create a reference database of the most characteristic elemental markers for commonly used … …American Journal of Applied Sciences, Vol. 22, Issue 1 · 6 Mar 2026 · 2,726 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleFabrication of Carboxymethyl Cellulose (CMC) Derived from Themeda gigantea Cellulose with Various Concentrations of Sodium MonochloroacetateDaimon Syukri, Heru Suryanto, Anni Faridah et al.The purpose of this study was to determine the properties of Carboxymethyl Cellulose (CMC) obtained from pimping stems (Themeda gigantea). There has yet to be a report on utilizing Themeda gigantea as a source of CMC raw materials. CMC was produced by varying the amount of Sodium Monochloroacetate (SMCA) as a carboxymethylation material. This study consisted of five SMCA treatments, … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 24 Oct 2024 · 5,147 accessesView PDF Cite

Research ArticleOpen accessEvery word in the titleExpression of Exosome-Derived MicroRNAs miR-21 and miR-135 are Differentially Regulated Among Dental Pulp Stem CellsMatthew Hunsaker, Brandon Richards, Adelle Fuller et al.Dental Pulp Stem Cells (DPSCs) are a type of mesenchymal stem cell that has the potential to differentiate into various types of cells and tissue. Previous research has demonstrated that DPSCs can be easily accessed and isolated from both permanent and deciduous teeth, such as wisdom teeth or third molars, although there is less information available about the mechanisms and … …Current Research in Medicine, Vol. 11, Issue 1 · 10 Jan 2023 · 10,533 accessesView PDF Cite