EB

EB, Eb, or E♭ may refer to:

Organizations

Science and technology

People

Other uses

Haplogroup E-M215 (Y-DNA)

In human genetics, Y Haplogroup E-M215, also referred to in the literature by other names such as E1b1b and E3b (see further discussion below), is a major Y-chromosome haplogroup. It is a division of the macro haplogroup E-M96, which is defined by the single nucleotide polymorphism (SNP) mutation M215. In other words, it is one of the major paternal lines of humanity, linking from father-to-son back to a common male-line ancestor. It is a subject of discussion and study in genetics as well as genetic genealogy, archaeology, and historical linguistics.

E-M215 has two ancient branches that contain all known modern E-M215 men, E-M35 and E-M281. Of these two, the only branch that has been confirmed in a native population outside of Ethiopia is E-M35, which in turn has two known branches, E-V68, E-Z827 which contain by far the majority of all modern E-M215 men. E-V68 and E-V257 have been found in highest numbers in North Africa and the Horn of Africa; but also in lower numbers in parts of the Middle East and Europe, and in isolated populations of Southern Africa.

Isobutane

Isobutane (i-butane), also known as methylpropane, is a chemical compound with molecular formula C
4H
10 and is an isomer of butane. It is the simplest alkane with a tertiary carbon. Concerns with depletion of the ozone layer by freon gases have led to increased use of isobutane as a gas for refrigeration systems, especially in domestic refrigerators and freezers, and as a propellant in aerosol sprays. When used as a refrigerant or a propellant, isobutane is also known as R-600a. Some portable camp stoves use a mixture of isobutane with propane, usually 80:20. Isobutane is used as a feedstock in the petrochemical industry, for example in the synthesis of isooctane.

Nomenclature

Isobutane is the trivial name retained by the International Union of Pure and Applied Chemistry (IUPAC) in its 1993 Recommendations for the Nomenclature of Organic Chemistry. Since the longest continuous chain in isobutane contains only three carbon atoms, the full systematic name is 2-methylpropane but the locant (2-) is typically omitted as redundant; C2 is the only position on a propane chain where a methyl substituent can be located without altering the main chain and forming the constitutional isomer n-butane.

W.E.B.

W.E.B. is an American TV series that aired for less than a month on NBC in 1978.

Overview

W.E.B. (the initials that comprised the title were never explained) showed the sharkish inner workings of the TV industry, centering on brash female programming executive Ellen Cunningham (Pamela Bellwood) at fictional network Trans-Atlantic Broadcasting. As head of Special Events Programming, Ellen was confronted with a variety of obstacles, most notably her male colleagues, such as ruthless programming head Jack Kiley (Alex Cord), drunken has-been news chief Gus Dunlap (Richard Basehart), and ratings-obsessed research chief Harvey Pearlstein (Lee Wilkof).

W.E.B. was originally scheduled to air on Wednesday nights at 10pm Eastern, and debuted on Wednesday, September 13, 1978. However, new NBC boss Fred Silverman's decision to scrap the proposed hour-long sitcom Coastocoast, originally announced for the Thursday 10pm slot, caused the network to move W.E.B. to Thursdays. It didn't help -- W.E.B. aired just four more episodes, the last on October 5, 1978. It was replaced with the police drama David Cassidy: Man Under Cover.

W. E. B. Du Bois

William Edward Burghardt "W. E. B." Du Bois (pronounced /duːˈbɔɪz/ doo-BOYZ; February 23, 1868 – August 27, 1963) was an American sociologist, historian, civil rights activist, Pan-Africanist, author, and editor. Born in Great Barrington, Massachusetts, Du Bois grew up in a relatively tolerant and integrated community. After completing graduate work at the University of Berlin and Harvard, where he was the first African American to earn a doctorate, he became a professor of history, sociology and economics at Atlanta University. Du Bois was one of the co-founders of the National Association for the Advancement of Colored People (NAACP) in 1909.

Du Bois rose to national prominence as the leader of the Niagara Movement, a group of African-American activists who wanted equal rights for blacks. Du Bois and his supporters opposed the Atlanta compromise, an agreement crafted by Booker T. Washington which provided that Southern blacks would work and submit to white political rule, while Southern whites guaranteed that blacks would receive basic educational and economic opportunities. Instead, Du Bois insisted on full civil rights and increased political representation, which he believed would be brought about by the African-American intellectual elite. He referred to this group as the Talented Tenth and believed that African Americans needed the chances for advanced education to develop its leadership.