The optical Einstein ring 0047−2808 was imaged by the VLT UT1 during the science verification programme. The ring is the image of a high–redshift z = 3.595 star–forming galaxy, with strong Lyα emission at 5589Å, gravitationally lensed by a massive early–type galaxy at z = 0.485. Relative to earlier NTT data the high signal– to–noise ratio of the VLT Lyα narrow–band image allows much improved co...

background: toluene is a harmful substance still being used as a solvent and catalyst in many industries that can increase the level of urinary hippuric acid (uha). this study was designed to examine the level of toluene and uha among workers of industrial site in seven companies in sidoarjo, indonesia and to analyze the risk factors for abnormal uha. methods: this study was an analytical cross...

A measurement of the branching ratio K+-P~+~~~/K~--+~~I/,, was made using stopped kaons from pp annihilations at rest and a. magnetic spectrometer to measure the momenta of the charged decay product to the 1% to 1.5% level. The determination is based on 45,500 events passing final data cuts. The resulting ratio is .3329 f .0047 (statistical) f.OO1O (systematic). Submitted to Physical Review D. ...

the research problem investigated in this paper is modeling volatility and analyzing risk and return’s relationship in tehran stock exchange using garch-family models including garch(1,1), garch(2,2), egarch(1,1), pgarch(1,1), tgarch(1,1), garch(1,1)-m and cgarch(1,1). using the daily returns of tehran stock exchange companies, we focused on two portfolios of all the companies during a 10-year-...