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.
Russia's heavy-handed approach to separatist tendencies in Chechenia is old-fashioned, to say the least, especially because both federalism and separatism are likely to be prominent features of the constitutional landscape ahead.
In his recent book Crossing the Threshold of Hope, Pope John Paul II airs his views on human reproduction. The pity is that he ignores most of modern genetics and embryology.
A group at MIT has managed to build and operate a laser that functions as such even when the average number of photons in the optical cavity is less than one.
For your New Year's research resolutions — a new set of nine mouse cytokine ELISAs, a robotic analysis com-poser, three new centrifuges, a hand held infrared thermometer, and a combine SPM/SEM.
