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Both the Soviet Union and the United States have evidently over-committed themselves to arms control proposals that cannot be safely carried through. They need help in backing away from them.
For about a century, the chief defect of classical mechanics has been that most problems within its ken have been insoluble. Now there is some hope that complex systems will be tractable.
The few remaining doubts that the giant panda is a bear depend on the belief that it ought to be closely related to the lesser panda, and on controversial interpretations of molecular sequence differences.
Brain tissue preparations provide a window on the regulation of neuroreceptor function that cell-free preparations cannot offer. The view reveals complex neuromodulator interactions.