Background: This study investigated the protective effects of aqueous extracts of Anogeissus leiocarpus (DC) Guill & Perr (Combretaceae) and Terminalia avicennioides Guill & Perr (Combretaceae) root barks, as well as their 1:1 (w/w) mixture on liver redox and haematological parameters of diethylnitrosamine-treated rats. Methods: Rats were orally administered distilled water, diethylnitrosami...

Acknowledgements I am most grateful to Professor K.-R.Müller for having provided me the opportunity, not only to gain research experience in his IDA/Machine Learning Laboratory but in addition for employing me to do so. Without his assistance I would not have been able to complete my degree at the BCCN and continue to the PhD level in a dignified manner. I have greatly appreciated having been t...

This paper is mainly focusing on the determination of mean molal activity coefficient of HCl in aqueous acidic medium. The present investigations have been carried out to determine the activity coefficients of hydrochloric acid in 2-propanol water mixture solutions under various conditions to study the ion solvent interactions in different temperatures. The standard molar potential Em0 of the c...

the purpose of this study was to compare shear bond strength (sbs) of orthodontic brackets bonded to enamel prepared by er:yag laser with two different powers and conventional acid-etching.forty-five human premolars extracted for orthodontic purposes were randomly assigned to three groups based on conditioning method: group 1- conventional etching with 37% phosphoric acid; group 2- irradiation ...

the purpose of this paper is to study the higher order asymptotic distributions of the eigenvalues associated with a class of sturm-liouville problem with equation of the form w??=(?2f(x)?r(x)) (1), on [a,b, where ? is a real parameter and f(x) is a real valued function in c2(a,b which has a single zero (so called turning point) at point 0x=x and r(x) is a continuously differentiable function. ...

An Integral Evolution Formula for the Wave Equation Bradley Alpert,∗,1 Leslie Greengard,†,2 and Thomas Hagstrom‡,3 ∗National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80303,†Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012-1110, and ‡Department of Mathematics and Statistics, University of New Mexico, Albuqu...

This paper summarises Rolls-Royce’s efforts in developing a production capable and industrially robust process for the production of dual-microstructure components. This has been possible through the use of process modeling, full-scale validation trials, detailed microstructural assessment through a variety of destructive and non-destructive methods and mechanical property evaluation. This pape...

Nonreflecting Boundary Conditions for the Time-Dependent Wave Equation Bradley Alpert,∗,1 Leslie Greengard,†,2 and Thomas Hagstrom‡,3 ∗National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305; †Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012-1110; and ‡Department of Mathematics and Statistics, University o...

background: the dispersed phase volume fraction plays key role in oil-in-water emulsion stability by different mechanisms like partial flocculation, depletion flocculation and bridging flocculation. since the mentioned mechanism is affected by emulsifier concentration presented in system, the major aim of this study was to investigate the effect of dispersed phase volume fraction on physical st...

achieving a desirable percutaneous absorption of drug molecule is a major concern in formulating dermatological products. the use of penetration enhancers could provide a successful mean for this purpose. the aim of this study was to evaluate the effect of incorporating a few common penetration enhancers (in different concentrations) into a 0.5% w/w piroxicam (model drug) gel formulation, on th...