Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

449 results for “chemistry”
Set a search alert
Research ArticleOpen accessIn the abstractAcute and Subchronic Toxicity of Mulberry FruitsJintanaporn Wattanathorn, Wipawee Thukummee, Cholathip Thipkaew et al.At present, the application of phytomedicine worldwide is substantial increase. The data of the acute and subchronic toxicity studies on medicinal plants or fruits and vegetables used for medicinal purposes should be obtained in order to increase the confidence in its safety to human, particularly for the application as functional food. Despite the widely consumption of mulberry (Morus alba L, … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 19 Sep 2012 · 33,916 accessesView PDFCite
Research ArticleOpen accessIn the abstractImportace of the International Council of Environmental Engineering EducationIstvan PatkoProblem statement: Due to the climatic changes and the ecological variations of the biosphere, global natural resources including the atmosphere, hydrosphere, lithosphere, biodiversities, genetic resources and energy, radiation, electric charge and magnetism, must be safeguarded for the benefit of present and future generations through careful planning and management as appropriate. Approach: The main points of the International Council of Environmental … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 27 Mar 2012 · 7,538 accessesView PDFCite
Research ArticleOpen accessIn the abstractTheoretical Study of the Proton Transfer in EnaminonesRita Sabah EliasProblem statement: Hydrogen bonding has a vital rule to unrevealed the nature of many different interactions both in gas phase and condensed media thus it is one of the most important concepts in chemistry. Enaminoes with their ability to form intrahydrogen bonded cheated rings represent one of the suitable compounds to study such concept. Approach: The three possible tautomers of … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 23 Nov 2011 · 7,421 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnticancer Activity of Some New Synthesized Tetrahydroquinoline and Tetrahydrochromene Carbonitrile DerivativesUsama W. Hawas, Mohamed A. Al-Omar, Abd El-Galil E. Amr, Abu El-Ftouh G. HammamProblem statement: In continuation to our search for new heterocyclic chemistry based anticancer, the suggestion, synthesis, structure elucidation of some naphthalene, chromene and quinoline derivatives 3-7 were realized herein using 3-methylcyclohexanone 1 as a starting material. Approach: The antitumor activities of the newly synthesized compounds 4-7 were evaluated utilizing 60 different human tumor cell lines, representing leukemia, melanoma, lung, colon, … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 14 Sep 2011 · 7,487 accessesView PDFCite
Research ArticleOpen accessIn the abstractIntrahydrogen Bonding and Transition States Between Enol and Enethiol Tautomers in β-ThioxoketonesBahjat A. Saeed, Rita S. Elias, Ebraheem Abdu MusadProblem statement: Hydrogen bonding is one of the most important concepts in chemistry because it is crucial to understand many different interactions both in gas phase and in condensed media. A particular subset is presented by the intramolecular hydrogen bonds where two ends of the same molecule interact, resulting in a ringlike structure. Approach: The study involved theoretical investigation of … …American Journal of Applied Sciences, Vol. 8, Issue 8 · 18 Jul 2011 · 7,457 accessesView PDFCite
Research ArticleOpen accessIn the abstractSynthesis, Characterization and Biological Activities of Organotin (IV) Methylcyclohexyldithiocarbamate CompoundsNormah Awang, Ibrahim Baba, Bohari M. Yamin et al.Problem statement: The growing interest in the chemistry of sulphur donor ligands are due to their encouraging anticancer, antibacterial and antifungal activities as well as their widespread industrial application. Dithiocarbamates belong to this class and much attention has been paid to them. Approach: Novel organotin compounds with the molecular formula RmSn[S2CN(CH3)(C6H11)]4-m (where m = 2, R = CH3, C2H5; m … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 9,214 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Optical Nonlinearity of Au and Ag Nanoparticle Prepared by the γ-Radiation MethodEsmaeil Shahriari, W. M.M. Yunus, Kazem Naghavi, Elias SaionProblem statement: The third order nonlinear optical properties of metal nanoparticles have been of interest in physical chemistry, medical diagnostics and optical devices. Gold colloidal nanoparticles are responsible for the brilliant reds seen in stained glass windows and silver particles are typically yellow. The purpose of the study was to determine the nonlinear refraction and absorption coefficient of the Au … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 9,545 accessesView PDFCite
Research ArticleOpen accessIn the abstractFemtotechnology: Nuclear Matter with Fantastic PropertiesA. A. BolonkinProblem statement: At present the term 'nanotechnology' is well known-in its' ideal form, the flawless and completely controlled design of conventional molecular matter from molecules or atoms. Such a power over nature would offer routine achievement of remarkable properties in conventional matter and creation of metamaterials where the structure not the composition brings forth new powers of matter. But even … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,689 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Electrochemical Investigation of the Redox Properties of Murexide in Aqueous and Non-Aqueous MediaHossnia S. MohranKnowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken. It is suggested … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,741 accessesView PDFCite
Research ArticleOpen accessIn the abstractKidney Function Indices in Mice after Long Intake of Agaricus brasiliensis Mycelia (=Agaricus blazei, Agaricus subrufescens) Produced by Solid State CultivationDalla Santa Herta Stutz, Rubel Rosália, Vitola Francisco Menino Destéfanis et al.Problem statement: Agaricus brasiliensis (=Agaricus blazei, Agaricus subrufescens) or Sun mushroom has widespread use for potential health benefits such anti-tumor and immunomodulatory effects. Studies detected that others edible mushrooms affected renal metabolism and despite the widespread use of A. brasiliensis there are no studies that address biological effects on the renal function indices after their oral administration. Therefore, this study … …OnLine Journal of Biological Sciences, Vol. 9, Issue 1 · 31 Mar 2009 · 8,155 accessesView PDFCite