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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 BiologyIn the mid-1960s, psychologist John Money encouraged the gender reassignment of David Reimer, who was born a biological male but suffered irreparable…
Sex changeGender IdentitypsychologyGenderSexual and Gender DisordersEmbryonic differentiation is the process of development during which embryonic cells specialize and diverse tissue structures arise. Animals are made…
differentiationPrenatal exposure to alcohol (ethanol) results in a continuum of physical, neurological, behavioral, and learning defects collectively grouped under…
fetal alcohol syndromeReproductionHuman DevelopmentTransposition of the great arteries or TGA is a potentially fatal congenital heart malformation where the pulmonary artery and the aorta are switched…
Transposition of Great VesselsMustard, William T., 1914-1987Congenital Heart DiseaseSenning OperationThis embryology image is a pencil sketch by Nicolaas Hartsoeker, published as part of his 1694 French-language paper entitled Essai de Dioptrique, a…
SpermatozoaSpermConrad Hal Waddington's "Experiments on the Development of Chick and Duck Embryos, Cultivated in vitro," published in 1932 in Philosophical…
Waddington, C. H. (Conrad Hal), 1905-1975ExperimentsChicksDucksGastrulation is an early stage in embryo development in which the blastula reorganizes into three germ layers: the ectoderm, the mesoderm, and the…
GastrulationChicksThe arterial switch operation, also called the Jatene procedure, is an operation in which surgeons redirect the flow of blood through abnormal hearts…
TechnologyJatene, AdibTransposition of Great VesselsCongenital Heart DiseaseAorta--AbnormalitiesIn 2012 Ann S. Masten and Angela J. Narayan published the article “Child Development in the Context of Disaster, War, and Terrorism: Pathways of Risk…
LiteraturePost-Traumatic Stress DisorderChildren and warChild disaster victimsPost-traumatic stress disorder in children