(Encyclopedia) geriatricsgeriatricsjĕrēăˈtrĭks [key], the branch of medicine concerned with conditions and diseases of the aged. Many disabilities in old age are caused by or related to the…
(Encyclopedia) MixtecMixtecmĭsˈtĕk [key], Native American people of Oaxaca, Puebla, and part of Guerrero, SW Mexico, one of the most important groups in Mexico. Although the Mixtec codices constitute…
(Encyclopedia) neoplasm or tumor, tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. Feedback controls limit cell…
(Encyclopedia) blood bank, site or mobile unit for collecting, processing, typing, and storing whole blood, blood plasma and other blood constituents. Most hospitals maintain their own blood reserves…
(Encyclopedia) 3D printer, computerized device that produces a three-dimensional object by creating it as a series of thin layers. The object is created from a model stored in computer-aided design…
(Encyclopedia) pterosaurpterosaurtĕrˈəsôrˌ [key] [Gr., = winged lizard], extinct flying reptile (commonly called pterodactyl [Gr., = wing finger]) of the order Pterosauria, common in the late…
(Encyclopedia) AZT or zidovudinezidovudinezīdōˈvy&oomacr;dēnˌ [key], drug used to treat patients infected with the human immunodeficiency virus (HIV), which causes AIDS; also called…
U.S. Senator, Massachusetts Born: Dec. 11, 1943Birthplace: Denver, Colo. Kerry was raised Catholic in a family of privilege, and spent part of his childhood living in Europe. His mother was a…
After There was 'Lucy'New 2.5 million-year-old ancestor found in Ethiopia by Otto Johnson 2.5 million-year-old fossils Earlier this year, a team of Ethiopian, American, and Japanese researchers…
Assembling the skeletonJoining the neckWelding the frameworkCompleted displayReconstructing a dinosaur skeleton is a complex job as usually only a fraction of the skeleton is recovered.…
