Now showing items 196-215 of 1030

    • The Dalkon Shield 

      Horwitz, Rainey
      The Dalkon Shield was an intrauterine contraceptive device (IUD) that women used in the early 1970s and 1980s. Produced by the A.H. Robins Company in the US, the Dalkon Shield was a contraceptive device placed directly ...
    • Dana Louise Raphael (1926–2016) 

      Darby, Alexis
      Dana Louise Raphael was an anthropologist and breastfeeding advocate in the US during the twentieth century. After she was unable to breastfeed her own infant, Raphael began to research why breastfeeding was more common ...
    • Dandy-Walker Syndrome 

      Bohnenberger, Alexandra
      Dandy-Walker Syndrome is a congenital brain defect in humans characterized by malformations to the cerebellum, the part of the brain that controls movement, and to the ventricles, the fluid-filled cavities that surround ...
    • Daubert v. Merrell Dow Pharmaceuticals, Inc. (1993) 

      Abboud, Alexis
      In its 1993 decision Daubert v. Merrell Dow Pharmaceuticals, Inc., the US Supreme Court established the Daubert Standard for evaluating the admissibility of scientific knowledge as evidence in US federal courts. When it ...
    • David Baltimore (1938– ) 

      Zhu, Meilin
      David Baltimore studied viruses and the immune system in the US during the twentieth century. In 1975, Baltimore was awarded the Nobel Prize in Physiology or Medicine for discovering reverse transcriptase, the enzyme used ...
    • David Edwin Wildt (1950- ) 

      Appleton, Caroline (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2014-07-24)
      David Edwin Wildt developed and applied assisted reproductive technologies to conserve rare and endangered wildlife species in the US during the twentieth and twenty-first centuries. He advocated genome resource banks to ...
    • David H. Hubel and Torsten N. Wiesel’s Research on Optical Development in Kittens 

      Lienhard, Dina A.
      During 1964, David Hubel and Torsten Wiesel studied the short and long term effects of depriving kittens of vision in one eye. In their experiments, Wiesel and Hubel used kittens as models for human children. Hubel and ...
    • David Hunter Hubel (1926–2013) 

      Lienhard, Dina A.
      David Hunter Hubel studied the development of the visual system and how the brain processes visual information in the US during the twentieth century. He performed multiple experiments with kittens in which he sewed kitten’s ...
    • David Michael Rorvik (1944–) 

      Blight, Alysse
      David Michael Rorvik is a science journalist who publicized advancements in the field of reproductive medicine during the late twentieth century. Rorvik wrote magazine articles and books in which he discussed emerging ...
    • David Reimer and John Money Gender Reassignment Controversy: The John/Joan Case 

      Gaetano, Phil
      In the mid-1960s, psychologist John Money encouraged the gender reassignment of David Reimer, who was born a biological male but suffered irreparable damage to his penis as an infant. Born in 1965 as Bruce Reimer, his penis ...
    • David Starr Jordan (1851-1931) 

      Briggs, Jill (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2013-06-26)
      David Starr Jordan studied fish and promoted eugenics in the US during the late nineteenth and early twentieth centuries. In his work, he embraced Charles Darwin s theory of evolution and described the importance of ...
    • David Wildt's Domestic Cat and Cheetah Experiments (1978-1983) 

      Appleton, Caroline (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-25)
      David Wildt's cheetah (Acinonyx jubatus) research from 1978-1983 became the foundation for the use of embryological techniques in endangered species breeding programs. The cheetah is a member of the cat family (Felidae), ...
    • David Wildt's Evolving Ethics Concerning the Roles of Wildlife Reproductive Sciences in Species Conservation 

      Appleton, Caroline (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2014-08-18)
      David Wildt is an animal reproductive biologist who directs the Conservation Biology Institute in Fort Royal, Virginia. In 1986, Wildt argued that artificial reproductive technologies should only be used for species ...
    • Davis v. Davis (1992) 

      Chapman, Jennifer E.; Zhang, Mark (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2013-10-17)
      In Davis v. Davis (1992), the Supreme Court of Tennessee decided a dispute over cryopreserved preembryos in favor of Junior Lewis Davis, who sought to have the preembryos destroyed over the objections of his former wife, ...
    • Davis v. Davis [Brief] (1992) 

      Heathcotte, Brock (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-10)
      This case was the first of its kind to address questions of personhood in the context of in vitro fertilization of a human embryo. It laid a foundation for future cases to work from: specifically, this case established the ...
    • The Debate over DNA Replication Before the Meselson-Stahl Experiment (1953–1957) 

      Hernandez, Victoria
      Between 1953 and 1957, before the Meselson-Stahl experiment verified semi-conservative replication of DNA, scientists debated how DNA replicated. In 1953, James Watson and Francis Crick proposed that DNA was composed of ...
    • "Declaration on Procured Abortion" (1974), by the Vatican 

      Brind'Amour, Katherine (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-10)
      As various societies around the world began legalizing abortive procedures or liberalizing government stances on abortion, the Roman Catholic Church's leaders felt the need to respond to these changes by clarifying the ...
    • “Delayed Breastfeeding Initiation Increases Risk of Neonatal Mortality” (2006), by Karen Edmond Charles Zandoh, Maria Quigley, Seeba Amenga-Etego, Seth Oqusi-Agyei, and Betty Kirkwood 

      Darby, Alexis
      In March 2006, scientists from Ghana and the UK Karen Edmond, Charles Zandoh, Maria Quigley, Seeba Amenga-Etego, Seth Oqusi-Agyei, and Betty Kirkwood published their findings that early, consistent breastfeeding habits for ...
    • Dennis Lo (1963- ) 

      Abboud, Alexis (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2014-11-04)
      Dennis Lo, also called Yuk Ming Dennis Lo, is a professor at the Chinese University of Hong Kong in Hong Kong, China. In 1997, Lo discovered fetal DNA in maternal plasma, which is the liquid component of a pregnant ...
    • "Derivation of Pluripotent Stem Cells from Cultured Human Primordial Germ Cells" (1998), by John Gearhart et al. 

      Wu, Ke (Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia., 2012-05-10)
      In November 1998, two independent reports were published concerning the first isolation of pluripotent human stem cells, one of which was "Derivation of Pluripotent Stem Cells from Cultured Human Primordial Germ Cells." ...