We develop the helicity formalism for spin-2 particles and apply it to the case of gravity in flat extra dimensions. We then implement the large extra dimensions scenario of Arkani-Hamed, Dimopoulos and Dvali in the program AMEGIC++, allowing for an easy calculation of arbitrary processes involving the emission or exchange of gravitons. We complete the set of Feynman rules derived by Han, Lykke...

This work describes five simple, specific and accurate spectrophotometric methods which developed and validated for determination of moxifloxacin hydrochloride in presence of its acidic degradation product without previous separation, namely; bivariate, graphical absorbance ratio, area under the curve, simultaneous equation and dual wavelength. Calibration graphs were established in the range o...

In this paper, we prove a conjecture, which was proposed by Frank Stenger in 1997, concerning the localization of eigenvalues of the Sinc matrix I(−1), a problem that is important in both the theory and the practice of Sinc methods. In 2003, Iyad Abu-Jeib and Thomas Shores established a partial answer to this unsolved problem. The techniques they have developed, however, turn out to be the key ...

S. H. NASR, An annotated bibliography of Islamic science, with the collaboration of W. C. Chittick, Teheran, Imperial Iranian Academy of Philosophy (publication no. 1), 1975, vol. 1, pp. lxiv, 432, 1-9 in Persian [no price stated]. Dr. Nasr is the author of many original books and papers on medieval Islamic science. This comprehensive annotated bibliography is the first of five projected volume...

I n the experiment reported here an attempt has been made to determine whether rats offered a free choice between two compound diets, identical except in their starch content and both deficient in the vitamin B complex, would select the one on which they could synthesize the required vitamins by refection. In the process of refection, first investigated by Fridericia (1926), rats are able to ut...

Abu Mansur's Al-Abniya a pioneering work on pharmacological treatise in Persian language, has not received the attention that it richly deserves. This work provides as a starting point to probe into the hitherto neglected field of study regarding the relationship of medical systems prevalent in Central, West and South Asia-Greco-Syriac, Iranian and Ayurvedic medical sciences.

Jaafar A. El-Awady,1,* Christopher Woodward,1 Dennis M. Dimiduk,1 and Nasr M. Ghoniem2 1Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/RXLM Wright-Patterson AFB, Ohio 45433-7817, USA 2Mechanical and Aerospace Department, University of California, Los Angeles, California 90095-1597, USA Received 2 July 2009; revised manuscript received 12 August 2009; published 9 Se...