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Richard Woltereck's Concept of Reaktionsnorm
By: B. R. Erick Peirson
| Published: Sep 06, 2012
Richard Woltereck first described the concept of Reaktionsnorm (norm of reaction) in his 1909 paper 'Weitere experimentelle Untersuchungen uber Art-…
Woltereck, Richard, 1877-1944EvolutionDaphniaEmbryologyHeredity
Ovum Humanum: Growth, Maturation, Nourishment, Fertilization and Early Development (1960), by Landrum Brewer Shettles
By: Stephen C. Ruffenach
| Published: Jul 21, 2009
Ovum Humanum was written and compiled by Dr. Landrum Brewer Shettles while he worked as a doctor in New York. The publication contains an atlas of…
LiteraturePublicationsReproductionHuman DevelopmentOva
“A Two-Factor Hypothesis of Freezing Injury: Evidence from Chinese Hamster Tissue-Culture Cells” (1972), by Peter Mazur, Stanley Leibo, and Ernest Chu
By: Risa Aria Schnebly
| Published: Mar 02, 2021
In 1972, Peter Mazur, Stanley Leibo, and Ernest Chu published, “A Two-Factor Hypothesis of Freezing Injury: Evidence from Chinese Hamster Tissue-…
LiteratureCryonicsCryosurgeryMedicine--History--20th centuryOsmosis
South Korea's Bioethics and Biosafety Act (2005)
By: Anne Safiya Clay
| Published: Mar 15, 2013
The South Korean government passed the Bioethics and Biosafety Act, known henceforth as the Bioethics Act, in 2003 and it took effect in 2005. South…
LawbioethicsInformed consent (Medical law)Embryonic Stem CellsEmbryonic stem cells--Research--Law and legislation
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
Shoukhrat Mitalipov and Masahito Tachibana's Mitochondrial Gene Replacement Therapy Technique
By: Giselle Lee
| Published: Sep 06, 2017
In 2009, Shoukhrat Mitalipov, Masahito Tachibana, and their team of researchers developed the technology of mitochondrial gene replacement therapy to…
TechnologymonkeysGurdon, J. B. (John Bertrand)Briggs, Robert, -1983King, Thomas J. (Thomas Joseph), 1921-2000
"The Development of the Pronephros during the Embryonic and Early Larval Life of the Catfish
(Ictalurus punctatus)" (1932), by Rachel L. Carson
By: Karen Wellner
| Published: Feb 28, 2014
Rachel L. Carson studied biology at Johns Hopkins University in Maryland and graduated in 1933 with an MA upon the completion of her thesis, The…
LiteratureDevelopmental BiologyChannel CatfishEmbryosMorphogenesis
Francesco Redi (1626-1698)
By: Kimberly A. Buettner
| Published: Nov 01, 2007
Francesco Redi, son of Florentine physician Cecilia de' Ghinci and Gregorio Redi, was born in Arezzo, Italy, on 18 February 1626. He studied…
Biography
“All-fours Maneuver for Reducing Shoulder Dystocia During Labor” (1999), by Joseph P. Bruner, Susan B. Drummond, Anna L. Meenan, and Ina May Gaskin
By: Megan O'Reilly
| Published: Sep 28, 2020
In 1999, Joseph Bruner, Susan B. Drummond, Anna L. Meenan, and Ina May Gaskin published, “All-fours Maneuver for Reducing Shoulder Dystocia During…
LiteratureShoulder DystociaMidwiferyBirth InjuriesBirth injuries--Complications
"Experiments in Plant Hybridization" (1866), by Johann Gregor Mendel
By: Amanda Andrei
| Published: Sep 04, 2013
During the mid-nineteenth century, Johann Gregor Mendel experimented with pea plants to develop a theory of inheritance. In 1843, while a monk in the…
GeneticsPeasLegumesPhenotypePlant breeding