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Sergio Cereceda Stone (1942- )

By: Hilary Gilson | Published: Jun 07, 2010

Sergio Cereceda Stone was born 16 April 1942 in the coastal city of Valparaiso, Chile. Stone's mother Luz was a housewife and caretaker for Sergio…

PeopleFertilityethicsReproductionBiography

Clomiphene Citrate

By: Tian Zhu | Published: Jul 25, 2009

Clomiphene citrate, more commonly known by its brand names Clomid and Serophene, is a medication prescribed to women to stimulate ovulation in order…

TechnologyClomipheneFertility

Ernst Gräfenberg (1881–1957)

By: Baylee A. Edwards | Published: Nov 17, 2022

Ernst Gräfenberg was a physician and researcher who studied sexology, the study of human sexuality, in both Germany and the United States during the…

G spotFemale orgasmGynecologySexology--ResearchWorld War, 1914-1918

George W. Beadle's One Gene-One Enzyme Hypothesis

By: Divyash Chhetri | Published: May 23, 2014

The one gene-one enzyme hypothesis, proposed by George Wells Beadle in the US in 1941, is the theory that each gene directly produces a single enzyme…

Beadle, George Wells, 1903-1989GeneticsGenetics, ExperimentalDrosophila melanogaster

China's One-Child Policy

By: Lijing Jiang | Published: Mar 31, 2011

In September 1979, China's Fifth National People's Congress passed a policy that encouraged one-child families. Following this decision from the…

ContextethicsReproductionFertilityGovernment
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Smile Train (1999–)

By: Grace Rauch | Published: Feb 06, 2024

Smile Train is a non-profit organization that Brian Mullaney and Charles Wang founded in 1999 in New York City, New York, that provides resources and…

Cleft PalateCleft palate childrenCleft palate—psychological aspectsCleft Lip

Your Baby’s Sex: Now You Can Choose (1970), by David M. Rorvik and Landrum B. Shettles

By: Alysse Blight | Published: Oct 31, 2019

In the book Your Baby’s Sex: Now You Can Choose, David Michael Rorvik and Landrum Brewer Shettles describe methods that couples can use prior to and…

LiteratureSex PreselectionSex PredeterminationFamily PlanningGender

Arthur William Galston (1920–2008)

By: Cecilia Chou | Published: Apr 27, 2017

Arthur W. Galston studied plant hormones in the United States during the late-twentieth century. His dissertation on the flowering process of soybean…

Agent OrangeSoybeanTetrachlorodibenzodioxinHerbicidesDefoliants

Calvin Blackman Bridges (1889-1938)

By: Kevin Gleason | Published: May 19, 2017

Calvin Blackman Bridges studied chromosomes and heredity in the US throughout the early twentieth century. Bridges performed research with Thomas…

DrosophilaHeredityInheritance of acquired charactersColumbia University--Graduate studentsMutation