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Greengard, Paul

(Encyclopedia)Greengard, Paul, 1925–2019, American neuroscientist, b. New York City, Ph.D. Johns Hopkins, 1953. Greengard was on the staff at Geigy Research Laboratories (1959–67) and a professor at the Albert ...

multiplexing

(Encyclopedia)multiplexing, in communication, technique whereby two or more independent messages, or information-bearing signals, are carried by a single common medium, or channel. When multiplexing is performed, t...

nave

(Encyclopedia)nave nāv [key], in general, all that part of a church that extends from the atrium to the altar and is intended exclusively for the laity. In a strictly architectural sense, however, the term indicat...

twilight

(Encyclopedia)twilight, period between sunset and total darkness or between total darkness and sunrise. Total darkness does not occur immediately when the sun sinks below the horizon because light from the sun that...

tilapia

(Encyclopedia)tilapia təläˈpēə [key] or St. Peter's fish, a spiny-finned freshwater fish of the family Cichlidae, native chiefly to Africa and the Middle East. Fish of the genera Oreochromis, Sarotherodon, and...

Pichegru, Charles

(Encyclopedia)Pichegru, Charles shärl pēshgrüˈ [key], 1761–1804, French general in the French Revolutionary Wars. Successful on the Rhine front (1793), he invaded (1794) the Netherlands, entered (1795) Amster...

Richardson, Elliot Lee

(Encyclopedia)Richardson, Elliot Lee, 1920–99, U.S. government official, b. Boston. Admitted to the bar in 1949, he was (1957–59) assistant secretary of health, education and welfare under President Dwight D. E...

Eastman, Joseph Bartlett

(Encyclopedia)Eastman, Joseph Bartlett, 1882–1944, U.S. government administrator, b. Katonah, N.Y. President Wilson appointed him in 1919 to the Interstate Commerce Commission. As federal coordinator of railroads...

Doughty, Sir Arthur George

(Encyclopedia)Doughty, Sir Arthur George douˈtē [key], 1860–1936, Canadian historian and archivist, b. England. As archivist (1904–35) of the dominion, he largely created the archives of the nation. He wrote ...

Melrose, town, Scotland

(Encyclopedia)Melrose, town (1991 pop. 2,221), Scottish Borders, S Scotland, on the Tweed River. It is the site of one of the finest ruins in Scotland—Melrose Abbey, owned by the nation and founded for Cistercian...