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Preformationism in the Enlightenment
By: Cera R. Lawrence
| Published: Aug 11, 2008
Preformationism was a theory of embryological development used in the late seventeenth through the late eighteenth centuries. This theory held that…
OvaSperm
John Spangler Nicholas (1895-1963)
By: Ellen M. DuPont
| Published: Jul 23, 2008
John Spangler Nicholas, an American biologist, was born on 10 March 1895 in Allegheny, Pennsylvania. He was the only child of Elizabeth Ellen…
PeopleBiographyMammalsAmphibians
Marie Stopes International
By: Ellen M. DuPont
| Published: Jul 22, 2008
Marie Stopes International (MSI) is a not-for-profit organization based in the United Kingdom that promotes reproductive and sexual health. It grew…
Organizationpublic healthOrganizationsReproductionReproductive Rights
The Mothers' Clinic
By: Ellen M. DuPont
| Published: Jul 22, 2008
The Mothers' Clinic for Constructive Birth Control was established on 17 March 1921. The first family planning clinic ever established in Great…
OrganizationContraceptionOrganizationsReproductionReproductive Rights
Marie Charlotte Carmichael Stopes (1880-1958)
By: Ellen M. DuPont
| Published: Jul 10, 2008
Marie Charlotte Carmichael Stopes was born in Edinburgh, Scotland, on 15 October 1880 to Charlotte Carmichael Stopes, a suffragist, and Henry Stopes…
Peoplepublic healthethicsReproductionBiography
Amniocentesis
By: Katherine Brind'Amour
| Published: Jun 04, 2008
Amniocentesis is a test used for prenatal diagnosis of inherited diseases, Rh incompatibility, neural tube defects, and lung maturity. Normally…
AmniocentesisReproductionFetus
Status and Value Term Descriptions
By: Brock Heathcotte
| Published: May 09, 2008
Descriptions of terms utilized in law articles. Terms like probable, questionable, and doubtful are defined and values of case precedents are…
Law
Morphogenesis
By: Mary E. Sunderland
| Published: May 09, 2008
The term morphogenesis generally refers to the processes by which order is created in the developing organism. This order is achieved as…
Morphogenesisdifferentiation
John Tyler Bonner (1920- )
By: Mary E. Sunderland
| Published: May 09, 2008
The establishment and growth of developmental-evolutionary biology owes a great debt to the work of John Tyler Bonner. Bonner's studies of cellular…
PeopleDictyosteliidaBiographyMorphogenesisMulticellularity