Word: complexity
(lookup in dictionary)
(lookup stats)
Dates: during 1980-1989
Sort By: most recent first
(reverse)
...hard edge returned when Nixon compared Gorbachev with two other Soviet leaders he had dealt with: "Unlike ((Nikita)) Khrushchev, he has no inferiority complex. He is totally confident, in command, and secure . . . Gorbachev is as tough as ((Leonid)) Brezhnev but better educated, more skillful, more subtle . . . Brezhnev used a meat axe in his negotiations. Gorbachev uses a stiletto. But beneath the velvet glove he always wears there is a steel fist...
...affects certain cells in the brain to induce sedative effects. He is looking at a group of receptors, sites on the membranes of brain cells, that link with a molecule called gamma- aminobutyric acid (GABA), a neurotransmitter that moves across the synapses between neurons. GABA homes in on a complex known as the GABA-benzodiazepine receptor. If there are a sufficient number of GABA molecules present in certain areas of the brain, anxiety diminishes. Tranquilizers such as Valium and Librium work by attaching themselves to the receptor and increasing GABA's effectiveness...
Businessmen are frustrated by the complex regulations that seem to do nothing except complicate their sales. A study by the National Academy of Sciences estimates that U.S. restrictions on high-tech exports cost American firms more than $11 billion annually in lost business. As the U.S. works to reduce its trade deficit and recapture overseas markets, those restrictions amount to a self-imposed trade barrier the U.S. can scarcely afford. Furthermore, maintains Harvard's Lewis Branscomb, former chief scientist at IBM, the scope of restricted items, from straitjackets to wind tunnels, is unnecessarily broad. "It would be nice to ensure...
...experiment was designed to show the differing effects of two distinct types of cholesterol: low-density lipoproteins, or LDLs, and a variant known as high-density lipoproteins, or HDLs. LDLs are the villains of cardiology: these complex molecules ferry cholesterol through the blood vessels, allowing life-threatening deposits to accumulate within artery walls. Each 1% decrease in LDL levels lowers the risk of heart disease 2%. The "good" HDLs work as garbage trucks, sopping up excess cholesterol and inhibiting arterial deposits. Basically, these two substances make up the total human blood- cholesterol level, an indicator that signals vulnerability to coronary...
...Using complex statistical analyses, the Finns ruled out every potential cause for the benefit except higher HDL levels. Says Antonio Gotto, a cholesterol expert at Baylor College of Medicine in Houston: "The garden- variety person with cardiovascular disease, maybe 60% of heart-attack patients, has a low HDL level and only a moderately high LDL level. Changing HDL levels will be very important for them...