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The British Doctors’ Study (1951–2001)
By: Phil Gaetano
| Published: Jan 30, 2018
From 1951 to 2001, researchers at the University of Oxford in Oxford, England, conducted the British Doctors’ Study, a study that examined the…
Doll, RichardHill, A. Bradford (Austin Bradford), 1897-1991Tobacco use--Health aspectsTobacco UseLungs--Cancer
Study of Fossilized Massospondylus Dinosaur Embryos from South Africa (1978-2012)
By: Madison Paige
| Published: Mar 31, 2015
In 1978, James Kitching discovered two dinosaur embryos in a road-cut talus at Roodraai (Red Bend) in Golden Gate Highlands National Park, South…
ContextDinosaursDinosaurs--EggsMassospondylus carinatusMassospondylus
Barbara McClintock (1902-1992)
By: Federica Turriziani Colonna
| Published: Jul 05, 2014
Barbara McClintock worked on genetics in corn (maize) plants and spent most of her life conducting research at the Cold Spring Harbor Laboratory in…
McClintock, Barbara, 1902-1992ChromosomesTransposonsCornDNA Transposable Elements
Angelman Syndrome
By: Jonathan North
| Published: Aug 12, 2014
Angelman syndrome is a disorder in humans that causes neurological symptoms such as lack of speech, jerky movements, and insomnia. A human cell has…
Angelman syndromeGenomic imprintingHuman chromosome 15--AbnormalitiesHuman chromosome 15Happy Puppet Syndrome
Mechanism of Notch Signaling
By: Cheryl Lancaster
| Published: Aug 21, 2014
Mechanism of Notch Signaling: The image depicts a type of cell signaling, in which two animal cells interact and transmit a molecular signal from o
Notch genesNotch ProteinsCellular control mechanismsdelta proteinSignal Pathways
The Formation of Reticular Theory
By: Isra Mishqat
| Published: Jun 19, 2017
In the nineteenth century, reticular theory aimed to describe the properties of neurons, the specialized cells which make up the nervous system, but…
Nerve TissueNervous SystemNobel Prize winnersBrainNeurons
"Transfer of Fetal Cells with Multilineage Potential to Maternal Tissue" (2004), by Kiarash Khosrotehrani et al.
By: Alexis Abboud
| Published: Nov 14, 2014
In 2004, a team of researchers at Tufts-New England Medical Center in Boston, Massachusetts, investigated the fetal cells that remained in the…
CellsStem CellsMaternal-Fetal ExchangeFetal cells from maternal bloodFetus
Studies in Spermatogenesis (1905), by Nettie Maria Stevens
By: Troy Cox
| Published: Jan 22, 2014
Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in 1905 and…
LiteratureSpermatogenesisGenetic sex determinationSex DifferentiationEmbryos
Gunther von Hagens (1945- )
By: Britta Martinez
| Published: Oct 10, 2012
Gunther von Hagens invented a plastination technique and created Body Worlds, a traveling exhibit that has made anatomy part of the public domain.…
PlastinationHuman bodyAnatomical museumsHuman AnatomyEmbryos
Carl Gottfried Hartman (1879-1968)
By: Giavonna A. Goodman
| Published: Nov 01, 2011
Carl Gottfried Hartman researched the reproductive physiology of opossums and rhesus monkeys. He was the first to extensively study the embryology…
PeopleReproductionBiographyOpossumsmonkeys