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Sherman Antitrust Act

(Encyclopedia)Sherman Antitrust Act, 1890, first measure passed by the U.S. Congress to prohibit trusts; it was named for Senator John Sherman. Prior to its enactment, various states had passed similar laws, but th...

sickle cell disease

(Encyclopedia)sickle cell disease or sickle cell anemia, inherited disorder of the blood in which the oxygen-carrying hemoglobin pigment in erythrocytes (red blood cells) is abnormal. This “hemoglobin-S” crysta...

conflict of laws

(Encyclopedia)conflict of laws, that part of the law in each state, country, or other jurisdiction that determines whether, in dealing with a particular legal situation, its law or the law of some other jurisdictio...

child labor

(Encyclopedia)child labor, use of the young as workers in factories, farms, mines, and other facilities, especially in work that is physically hazardous or morally, socially, or mentally harmful, involves a form of...

circus

(Encyclopedia)circus [Lat.,=ring, circle], historically, the arena associated with the horse and chariot races and athletic contests known in ancient Rome as the Circensian games. The Roman circus was a round or ov...

Jainism

(Encyclopedia)Jainism jīˈnĭzəm [key] [i.e., the religion of Jina], religious system of India practiced by about 5,000,000 persons. Jainism, Ajivika, and Buddhism arose in the 6th cent. b.c. as protests against ...

APRA

(Encyclopedia)APRA äˈprä [key] or the Alianza Popular Revolucionaria Americana, reformist political party in Peru, also called the Partido Aprista. Founded (1924) by Victor Raúl Haya de la Torre while in exile,...

jellyfish

(Encyclopedia)jellyfish, common name for the free-swimming stage (see polyp and medusa), of certain invertebrate animals of the phylum Cnidaria (the coelenterates). The body of a jellyfish is shaped like a bell or ...

electron tube

(Encyclopedia)CE5 Triode electron tube electron tube, device consisting of a sealed enclosure in which electrons flow between electrodes separated either by a vacuum (in a vacuum tube) or by an ionized gas at l...

arch

(Encyclopedia)CE5 Arches arch, the spanning of a wall opening by means of separate units (such as bricks or stone blocks) assembled into an upward curve that maintains its shape and stability through the mutual...