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"Embryonic Stem Cell Lines Derived from Human Blastocytes" (1998), by James Thomson
By: Ke Wu
| Published: Feb 01, 2011
After becoming chief pathologist at the University of Wisconsin-Madison Wisconsin Regional Primate Center in 1995, James A. Thomson began his…
Stem CellsExperimentsPublicationsHuman Development
Parasitic Twins
By: Corinne DeRuiter
| Published: Aug 16, 2011
Parasitic twins, a specific type of conjoined twins, occurs when one twin ceases development during gestation and becomes vestigial to the fully…
Twins, ConjoinedReproductionFetusCongenital DisordersHuman Development
John von Neumann's Cellular Automata
By:
| Published: Jun 14, 2010
Cellular automata (CA) are mathematical models used to simulate complex systems or processes. In several fields, including biology, physics, and…
Von Neumann, John, 1903-1957ModelsEvolution
Endothelium
By: Kate MacCord
| Published: Jan 28, 2014
The endothelium is the layer of cells lining the blood vessels in animals. It weighs more than one kilogram in adult humans, and it covers a surface…
EndotheliumTissuesEpitheliumCellsVascular endothelium
Edward Drinker Cope's Law of Acceleration of Growth
By: M. Elizabeth Barnes
| Published: Jul 24, 2014
The Law of Acceleration of Growth is a theory proposed by Edward Drinker Cope in the US during the nineteenth century. Cope developed it in an…
developmentEvolutionCope, E. D. (Edward Drinker), 1840-1897Growth and Development
Conjoined Twins
By: Corinne DeRuiter
| Published: Nov 03, 2011
Conjoined twins are twins whose bodies are anatomically joined in utero. The degree to which the twins are attached can range from simple, involving…
Twins, ConjoinedReproductionFetus
"The Development of the Turtle Carapace" (1989), by Ann Campbell Burke
By: Guido Caniglia
| Published: Oct 20, 2011
Ann Campbell Burke examines the development and evolution of vertebrates, in particular, turtles. Her Harvard University experiments, described in…
LiteratureExperimentsPublicationsTurtlesEvolution
Center for Reproductive Health (1986-1995)
By: Hilary Gilson
| Published: Sep 30, 2008
The Center for Reproductive Health was a fertility clinic run by a partnership of world-renowned fertility specialists from 1986 to 1995. The Center…
OrganizationReproductive RightsOrganizationsReproductionbioethics
Gamete Intra-Fallopian Transfer (GIFT)
By: Hilary Gilson
| Published: Sep 26, 2008
Various techniques constitute assisted reproduction, one of which is gamete intra-fallopian transfer (GIFT). The first example of GIFT involved…
TechnologyReproduction
Landrum Brewer Shettles (1909-2003)
By: Stephen C. Ruffenach
| Published: Jul 22, 2009
Landrum Brewer Shettles is remembered as an important contributor to early in vitro fertilization research in the United States as well as a prolific…
PeopleFertilization in VitroReproductionBiographyFertilization