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Science 6 May 2005:
Vol. 308. no. 5723, p. 791
DOI: 10.1126/science.308.5723.791a

Letters

Letters in This Issue


Letters in This Issue

space space
[Letter] Calling on Scientists to Fight Budget Cuts
Bart Gordon
[Letter] Establishing Indicators for Biodiversity
Jurgen Brauer; Brian Czech, David L. Trauger, Joshua Farley, Robert Costanza, Herman E. Daly, Charles A. S. Hall, Reed F. Noss, Lisi Krall, Paul R. Krausman. Response Andrew P. Dobson, Andrew Balmford, Peter R. Crane, Rhys E. Green, Georgina M. Mace
[Letter] Memo to NASA: Finish What You Start
Charles J. Robinove
[Letter] The End of a Chilean Institute
Luis Barbeito, Jerold Chun, Lester I. Binder, Vivaldo Moura Neto, George Perry, Claudio Scazzochio, Galileo Violini
[Letter] Technical Comment Abstracts



How to Submit a Letter to the Editor



Technical Comment Abstracts

space
Comment on "Energetics of Hydrogen Bond Network Rearrangements in Liquid Water"
A. Nilsson, Ph. Wernet, D. Nordlund, U. Bergmann, M. Cavalleri, M. Odelius, H. Ogasawara, L.-Å. Näslund, T. K. Hirsh, L. Ojamäe, P. Glatzel, L. G. M. Pettersson.
Abstract: Smith et al. (Reports, 29 October 2004, p. 851) reported a temperature-dependent x-ray absorption study on liquid water. We argue that both the measurement and the data analysis have serious shortcomings. The spectra are affected by experimental saturation effects, and the analysis suffers from incorrect assumptions for x-ray absorption spectroscopy.

Full text at www.sciencemag.org/cgi/content/full/308/5723/793a

 

Response to Comment on "Energetics of Hydrogen Bond Network Rearrangements in Liquid Water"
J. D. Smith, C. D. Cappa, B. M. Messer, R. C. Cohen, R. J. Saykally.
Abstract: We demonstrate that the spectra reported in our study are free from artifacts induced by saturation effects. Furthermore, our analysis of the energetics of hydrogen-bond rearrangement is in perfect agreement with temperature-dependent populations previously reported by Wernet et al.

Full text at www.sciencemag.org/cgi/content/full/308/5723/793b

 





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Science. ISSN 0036-8075 (print), 1095-9203 (online)