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Jan Evangelista Purkyne (1787-1869)
By: Minai Mandana
| Published: Jun 05, 2014
Jan Evangelista Purkyne, also called Johannes or Johann Evangelist Purkinje, studied cells in the cerebellum, fibers of the heart, subjective visual…
Purkinje CellsPurkinje FibersOocytes
Sex-determining Region Y in Mammals
By: Troy Cox
| Published: Dec 31, 2013
The Sex-determining Region Y (Sry in mammals but SRY in humans) is a gene found on Y chromosomes that leads to the development of male phenotypes,…
Y ChromosomeTestisEmbryosChromosomesSex Chromosomes
The Discovery of Fetal Alcohol Syndrome
By: Erica O'Neil
| Published: May 09, 2011
The term Fetal Alcohol Syndrome (FAS) was first published in 1973 in an article published in the British medical journal The Lancet. In that article…
fetal alcohol syndromeReproductionHuman Development
Nuclear Transplantation
By: Sean Cohmer
| Published: Jun 14, 2011
Nuclear transplantation is a method in which the nucleus of a donor cell is relocated to a target cell that has had its nucleus removed (enucleated…
Cell nuclei--TransplantationNuclear Transplantation
Ethics and Induced Pluripotent Stem Cells
By: Katherine Brind'Amour
| Published: Jun 10, 2009
The recent development of induced pluripotent stem cells (iPSCs) and related technologies has caught the attention of scientists, activists,…
ethicsStem Cells
“Part-Human Chimeras: Worrying the Facts, Probing the Ethics” (2007), by Françoise Baylis and Jason Scott Robert
By: Alexis Darby
| Published: Jun 19, 2021
In 2007, Françoise Baylis and Jason Scott Robert published “Part-Human Chimeras: Worrying the Facts, Probing the Ethics” in The American Journal of…
LiteratureChimerismNeuronsChimeraGenetics
The Woman Rebel (1914)
By: Rainey Horwitz
| Published: May 16, 2018
In the early twentieth century, birth control advocate Margaret Sanger published eight issues of a feminist magazine called The Woman Rebel.…
Sanger, Margaret, 1879-1966Margaret Sanger Papers ProjectFeminism and scienceFeminism and mass mediaFeminism and education--United States
On the Generation of Animals, by Aristotle
By: Cera R. Lawrence
| Published: Oct 02, 2010
Aristotle's On the Generation of Animals is referred to in Latin as De Generatione animalium. As with many of Aristotle's writings, the exact date of…
LiteratureReproductionPublicationsphilosophy
The Development of Mifepristone for Use in Medication Abortions
By: Carolina J. Abboud
| Published: Aug 07, 2017
In the 1980s, researchers at the pharmaceutical company Roussel-Uclaf in Paris, France, helped develop a biological compound called mifepristone.…
Induced AbortionAbortionAbortifacientsReproductive RightsMifepristone
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