Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
The British and Soviet governments are beset by problems of sovereignty, as it happens the obverse of each other. They (and other governments) should follow the dictum that national interests are but an amalgam of what people want.
Roger Penrose has suggested that when we consider consciousness the usual physical rules for time may not apply. But that notion is based on a false interpretation of physiological observations.
Hopes that dielectric materials in which the transmission of certain frequencies would be forbidden seem to have been disappointed by the difficulty of realizing expectation and, now, by calculation.
Use of the SCID-hu mouse — an immunodeficient mouse transplanted with relevant organs of the human immune system — as a preclinical testing system for human therapeutics is discussed.
Next week's conference sponsored by the American Society for Biological Chemistry and Molecular Biology/American Society for Cell Biology will be held in San Diego, California. Year-end products include a cDNAsynthesis kit and an image processing system that offers a more affordable approach to confocal microscopy.
