Filter my results
Search
Displaying 621 - 630 of 1719
Agent Orange as a Cause of Spina Bifida
By: Cecilia Chou
| Published: Mar 09, 2017
Spina bifida is a birth defect that affects the spines of developing fetuses and infants, and research in the 20th century indicated that chemicals…
Agent OrangeHerbicidesSpina BifidaNeural tube--AbnormalitiesSpinal cord--Abnormalities
"Presence of Fetal DNA in Maternal Plasma and Serum" (1997), by Dennis Lo, et al.
By: Cassidy Possehl
| Published: Mar 07, 2017
In the late 1990s researchers Yuk Ming Dennis Lo and his colleagues isolated fetal DNA extracted from pregnant woman’s blood. The technique enabled…
AmniocentesisChorionic Villus SamplingFetusObstetricsDNA
Arthur Earl Walker (1907-1995)
By: Alexandra Bohnenberger
| Published: Mar 07, 2017
Arthur Earl Walker was a medical researcher and physician who studied the brain and neurosurgery in the United States during the twentieth century.…
NeurologyBrain--Ventricles--SurgeryJohns Hopkins HospitalJohns Hopkins Hospital. Department of MedicineDandy-Walker Syndrome
Hydrocephalus During Infancy
By: Alexandra Bohnenberger
| Published: Mar 07, 2017
Hydrocephalus is a congenital or acquired disorder characterized by the abnormal accumulation of cerebrospinal fluid within the cavities of the brain…
HydrocephalusDandy, Walter Edward, 1886-1946Arnold-Chiari DeformityBrain--DiseasesInfants--Diseases
Agent Orange Birth Defects
By: Cecilia Chou, Jesse King
| Published: Mar 07, 2017
Sprayed extensively by the US military in Vietnam, Agent Orange contained a dioxin contaminant later found to be toxic to humans. Despite reports by…
Agent OrangeHerbicidesSpina BifidaNeural tube--AbnormalitiesSpinal cord--Abnormalities
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
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
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
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