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Leonard Hayflick (1928- )
By: Zane Bartlett
| Published: Jul 20, 2014
Leonard Hayflick studied the processes by which cells age during the twentieth and twenty-first centuries in the United States. In 1961 at the Wistar…
PeopleCellsCell populationsCell DeathApoptosis
The e-Mouse Atlas Project (1992- )
By: Shawn A. Miller
| Published: Jun 11, 2014
The Edinburgh Mouse Atlas, also called the e-Mouse Atlas Project (EMAP), is an online resource comprised of the e-Mouse Atlas (EMA), a detailed…
TechnologyEmbryosDatabases, GeneticdevelopmentGene Expression
Francis Sellers Collins (1950- )
By: Tito Carvalho
| Published: Apr 10, 2014
Francis Sellers Collins helped lead the International Human Genome Sequencing Consortium, which helped describe the DNA sequence of the human genome…
Human Genome ProjectNucleotide sequenceSequence Analysis, DNAGenome
Davis v. Davis (1992)
By: Mark Zhang, Jennifer E. Chapman
| Published: Oct 17, 2013
In Davis v. Davis (1992), the Supreme Court of Tennessee decided a dispute over cryopreserved preembryos in favor of Junior Lewis Davis, who sought…
LawFrozen human embryosFertilization in VitroAmerican Fertility SocietyConception
“Anatomy of the Clitoris” (2005) by Helen E. O’Connell, Kalavampara V. Sanjeevan, and John M. Hutson
By: Baylee A. Edwards
| Published: Nov 13, 2023
In 2005, Helen O’Connell and colleagues published “Anatomy of the Clitoris,” a review article, in The Journal of Urology. The article was one of the…
Female orgasmGenital Organs, FemaleGenitalia, Female
Michael R. Harrison (1943– )
By: Risa Aria Schnebly, Brianna Ellis
| Published: Aug 04, 2021
Michael R. Harrison worked as a pediatric surgeon in the US throughout the late-twentieth century and performed many fetal surgeries, including one…
Birth DefectsAbnormalities, HumanPediatric surgeonsMyelomeningoceleSpinal Dysraphism
Ina May Gaskin (1940– )
By: Megan O’Reilly
| Published: Jun 16, 2020
Ina May Gaskin is a certified professional midwife, or CPM, in the US during the late twentieth and early twenty-first centuries. She worked at the…
PeopleChildbirthChildbirth teachersChildbirth at homeChildbirth in literature
Categorization of Conservative, Semi-Conservative, and Dispersive DNA Replication Theories (1953–1956)
By: Victoria Hernandez
| Published: Oct 31, 2019
In 1956, Gunther Stent, a scientist at the University of California Berkeley in Berkeley, California, coined the terms conservative, semi-…
DNADNA ReplicationDNA HelicasesGenesHeredity
“Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid” (1953), by James Watson and Francis Crick
By: Victoria Hernandez
| Published: Oct 31, 2019
In April 1953, James Watson and Francis Crick published “Molecular Structure of Nucleic Acids: A Structure of Deoxyribose Nucleic Acid” or “A…
LiteratureDNAComplementary DNADNA ReplicationDeoxyribonucleic Acid
Hormone Releasing Intrauterine Devices
By: Victoria Higginbotham
| Published: Jun 03, 2019
Hormone releasing intrauterine devices or hormonal IUDs are contraceptive devices placed in a woman’s uterus to prevent pregnancy by continuously…
TechnologyIntrauterine contraceptivesLevonorgestrel intrauterine contraceptivesCopper intrauterine contraceptivesProducts liability--Contraceptive drug implants