Psychiatrists and the Adversary Process
How should the determination of individual responsibility be made in a criminal case? It is argued here that the facts and reasoning of expert witnesses should be subjected to close cross-examination
Volume 230, Issue 6
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Features
Fusion Power by Laser Implosion
Laser-fusion schemes are based on the ignition of a pellet of fuel by focused laser beanls. For the laser approach to succeed the fuel must be imploded to 10,000 times normal liquid density
Population Cycles in Rodents
Field populations of many small rodents rise and fall in a cycle lasting three to four years. Associated with these fluctuations is a periodic change in the genetic constitution of the population
Neurotransmitters
These chemicals released from nerve-fiber endings are the messengers by means of which nerve cells communicate. Neurotransmitters mediate functions ranging from muscle contraction to the control of behavior
The Steady State of the Earth's Crust, Atmosphere and Oceans
The main divisions of the earth's surface are linked by vast geochemical cycles to form a stable worldwide system in which the inputs and outputs of the key constituents are in balance
Rotating Chemical Reactions
Certain colorful reactions visibly organize themselves in space and time as a spiral wave. They suggest that many other chemical reactions have a geometrical aspect that needs to be investigated
Ice-Age Hunters of the Ukraine
In the span between 75,000 and 10,000 years ago men hunted other mammals in the rigorous environment of eastern Europe. At some sites they amassed mammoth bones to build shelters
Wines, Grape Vines and Climate
Why are wines so different? An important part of the answer is that the more rigorous (and thus more variable) grape-growing conditions give rise to the more idiosyncratic (and thus more intriguing) wines