A new independent value for the electron's mass in units of the atomic mass unit is presented, m(e) = 0.000 548 579 909 2(4) u. The value is obtained from our recent measurement of the g factor of the electron in (12)C(5+) in combination with the most recent quantum electrodynamical (QED) predictions. In the QED corrections, terms of order alpha(2) were included by a perturbation expansion in Z...

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Total mercury (Hg(T)) determination requires the addition of concentrated hydrochloric acid solution (≥10 mol L(-1) HCl) in relatively high amounts to preserve the samples and to prepare reagent solutions. A method for the preparation of concentrated HCl with Hg(T) concentration of lower than 5 ng L(-1) is described in this article. It is based on the well-known chemical reaction: 2 NH(4)Cl + H...

Our recent Chandra, XMM-Newton and Suzaku observations of several high redshift quasars have revealed the presence of massive outflows of highly ionized, high-metallicity material driven from near the black hole (a few gravitational radii, rg) with velocities of up to 0.7c (see Figure 1; Chartas et al. 2002, ApJ, 579, 169; Chartas et al. 2003 ApJ, 595, 85; Chartas et al. 2007, AJ, 133, 1849; Sa...

D)OUGILAS, M. 1930 Some principles regulating life and death of pathogenic intestinal bacteria. Lancet, 2, 789-791. FRAZIER, W. C. 1958 Food microbiology, Ed. 1. McGrawHill Book Company, Inc., New York, New York. JAMES, L. B. 1925 Bacterial content of head lettuce. Am. Food J., 20, 302-304. KURK, F. W. 1918 A bacterial examination of green vegetables. Am. J. Public Health, 18, 660-661. MILLS, R...

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