Periana et al. [Science 1998, 280, 560] previously reported two catalysts for lowtemperature methane activation to methanol: PtCl2(NH3)2 and PtCl2(bpym). It was shown that the ammine catalyst is much more active, but it decomposes rapidly in sulfuric acid to form a PtCl2 precipitate, while the bpym system is long-lived. To have a basis for developing new catalysts that would not decompose, we u...

Aberrrant signaling by the epidermal growth factor receptor [EGFR (HER1, erbB1)] and/or HER2/neu tyrosine kinases is present in a cohort of breast carcinomas. Because HER2 is constitutively phosphorylated in some breast tumors, we speculated that, in these cancers, transmodulation of HER2 may occur via EGFR signaling. To test this possibility, we examined the effect of EGFR-specific kinase inhi...

In recent years odds ratios have become widely used in medical reports—almost certainly some will appear in today’s BMJ. There are three reasons for this. Firstly, they provide an estimate (with confidence interval) for the relationship between two binary (“yes or no”) variables. Secondly, they enable us to examine the effects of other variables on that relationship, using logistic regression. ...

14 Drlica, K. and Zhao, X. (1997) Microbiol. Mol. Biol. Rev. 61, 377-392 15 Kuhlmann, J., Dalhoff, A. and Zeiler, H.-J. (eds.) (1998) Quinolone Antibacterials. Handbook of Experimental Pharmacology, Springer-Verlag, Berlin 16 Schacht, P. (1997) Clinical use of quinolones, in Handbook of Experimental PharmacologyQuinolone Antibacterials (Kuhlmann, J., Dalhoff, A. and Zeiler, H.-J., eds.), pp. 42...

We present an all-optical label processor based on selfpolarization rotation in a semiconductor optical amplifier. The operation principle is experimentally demonstrated. The results show a label-andpayload-suppression ratio higher than 20 dB and clear synchronization pulses for further processing. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 453–454, 2005; Published online in ...

NetForce Co. Ltd. (T.Y., H.M., K.W., K.I.), Nagoya, Aichi 453-0801, Japan; Department of Obstetrics and Gynecology (H.K., M.S., N.K., T.T.), Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan; Computer Technology Integration Co. Ltd. (T.K.), Nagoya, Aichi 450-0003, Japan; and Department of Knowledge-Based Information Engineering (N.K., H.S.), Toyohashi University of Te...