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The epigenetic landscape is a concept representing embryonic development. It was proposed by Conrad Hal Waddington to illustrate the various…
Waddington, C. H. (Conrad Hal), 1905-1975EpigeneticsCell differentiationEmbryologyDevelopmental BiologyOn 1 October 1995, Steven Epstein published “The Construction of Lay Expertise: AIDS Activism and the Forging of Credibility in the Reform of…
HIV SeropositivityAcquired Immunodeficiency SyndromePneumocystis cariniiPneumocystis InfectionsHIVSolomon A. Berson helped develop the radioimmunoassay (RIA) technique in the US during the twentieth century. Berson made many scientific…
ImmunoassayRadioimmunoassayIsotopesPhysiologyNuclear MedicineOn 29 September 1973, researchers David De Kretzer, Peter Dennis, Bryan Hudson, John Leeton, Alexander Lopata, Ken Outch, James Talbot, and Carl Wood…
LiteratureEmbryologyEmbryogenesisZygotesEmbryo TransferIn 2008, Celeste Mergens founded the organization Days for Girls to address obstacles impeding women’s and girls’ access to sustainable hygiene and…
OrganizationMenstruationMenstruation--Social aspectsFeminine Hygiene ProductsSanitary napkinsIn a series of experiments during mid 1930s, a team of researchers in New York helped establish that bacteria of the species Toxoplasma gondii can…
ToxoplasmosisColumbia UniversityCongenital ToxoplasmosisEncephalomyelitisInfectionPublished in 2002, prostate cancer researcher John R. Masters authored a review article HeLa Cells 50 Years On: The Good, The Bad, and The Ugly that…
LiteratureCell linesContinuous cell linesGerm CellsSurface contaminationCamillo Golgi studied the central nervous system during the late nineteenth and early twentieth centuries in Italy, and he developed a staining…
Nerve TissueGolgi ApparatusSilver NitrateNervous SystemNobel Prize winnersJérôme Lejeune was a French physician and researcher who studied genetics and developmental disorders. According to the Jérôme Lejeune Foundation, in…
Down syndromeMongolismKaryotypeGenetic ScreeningGenetic ConceptsHarvey Karman was an abortionist, inventor, and activist for safe abortion techniques in the US during the twentieth century. Karman developed the…
AbortionMenstrual regulationReproductive RightsLate-term abortionInternational Planned Parenthood Federation