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Hermann Joseph Muller's Study of X-rays as a Mutagen, (1926-1927)
By: Kevin M. Gleason
| Published: Mar 07, 2017
Hermann Joseph Muller conducted three experiments in 1926 and 1927 that demonstrated that exposure to x-rays, a form of high-energy radiation, can…
X-raysRadiationGeneticsMutationDrosophila
Julia Barlow Platt's Embryological Observations on Salamanders' Cartilage (1893)
By: Karina Ramirez
| Published: Mar 06, 2017
In 1893, Julia Barlow Platt published her research on the origins of cartilage in the developing head of the common mudpuppy (Necturus maculosus)…
CartilageEmbryosGastrulationEmbryologyNecturus
Edward Charles Dodds (1899-1973)
By: Alexis Abboud
| Published: Mar 06, 2017
Edward Charles Dodds researched the function and effects of natural and artificial hormones on the endocrine system in England during the twentieth…
Dodds, E. C. (Edward Charles), 1899-EndocrinologyEstrogenDiethylstilbestrolDiethylstilbestrol--Carcinogenicity
Golgi Staining Technique
By: Sarah Taddeo, Erica O'Neil
| Published: Mar 06, 2017
The Golgi staining technique, also called the black reaction after the stain's color, was developed in the 1870s and 1880s in Italy to make brain…
TechnologyGolgi, Camillo, 1843-1926Stains and staining (Microscopy)NeuronsMicroscope slides
Walter Edward Dandy (1886-1946)
By: Alexandra Bohnenberger
| Published: Mar 02, 2017
Walter Edward Dandy studied abnormalities in the developing human brain in the United States in the twentieth century. He collaborated with…
HydrocephalusBrain--Ventricles--RadiographyVentriculography, CerebralDandy-Walker SyndromeDandy-Walker Malformation
Edgar Allen and Edward A. Doisy's Extraction of Estrogen from Ovarian Follicles, (1923)
By: Brendan Van Iten
| Published: Mar 02, 2017
In the early 1920s, researchers Edgar Allen and Edward Adelbert Doisy conducted an experiment that demonstrated that ovarian follicles, which produce…
OvariesCorpus LuteumEndometriumEstrogenHormones, Sex
Transposition of the Great Arteries (TGA)
By: Daniella Caudle
| Published: Mar 02, 2017
Transposition of the great arteries or TGA is a potentially fatal congenital heart malformation where the pulmonary artery and the aorta are switched…
Transposition of Great VesselsMustard, William T., 1914-1987Congenital Heart DiseaseSenning Operation
Dandy-Walker Syndrome
By: Alexandra Bohnenberger
| Published: Mar 02, 2017
Dandy-Walker Syndrome is a congenital brain defect in humans characterized by malformations to the cerebellum, the part of the brain that controls…
Dandy, Walter Edward, 1886-1946Walker, A. Earl (Arthur Earl), 1907-1995HydrocephalusBirth DefectsDandy-Walker Syndrome
Karl Oskar Illmensee (1939–)
By: Cheryl Lancaster
| Published: Feb 26, 2017
Karl Oskar Illmensee studied the cloning and reproduction of fruit flies, mice, and humans in the US and Europe during the twentieth and twenty-first…
CloningMolecular CloningClone CellsTwinsEmbryos
Webster v. Reproductive Health Services (1989)
By: Carolina J. Abboud
| Published: Feb 26, 2017
In the 1989 case Webster v. Reproductive Health Services, the US Supreme Court upheld the constitutionality of a Missouri law regulating abortion…
LawBirth control clinicsAbortionFamily planning servicesAbortion--Law and legislation--United States