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Brian K. Hall (1941- )
By: Editorial Team, EP
| Published: Jul 07, 2009
Brian Hall is the son of Doris Garrad and Harry Hall, and was born in Port Kembla, NSW Australia, on 28 October 1941. He attended the University of…
Neural CrestBiography
Sperm Capacitation
By: Stephen Ruffenach
| Published: Jul 07, 2009
Sperm capacitation refers to the physiological changes spermatozoa must undergo in order to have the ability to penetrate and fertilize an egg. This…
Sperm CapacitationSpermOvaFertilization
Caspar Friedrich Wolff (1734-1794)
By: Stephen Ruffenach
| Published: Jul 07, 2009
Caspar Friedrich Wolff is most famous for his 1759 doctoral dissertation, Theoria Generationis, in which he described embryonic development in both…
PeopleEpigenomicsBiographyEpigenetics
Regeneration
By: Mary E. Sunderland
| Published: Jun 10, 2009
Regeneration is a fascinating phenomenon. The fact that many organisms have the capacity to regenerate lost parts and even remake complete copies of…
Regeneration (Biology)Regeneration
Intracytoplasmic Sperm Injection
By: Tian Zhu
| Published: Jun 10, 2009
Intracytoplasmic Sperm Injection (ICSI) is an assisted reproductive technique (ART) initially developed by Dr. Gianpiero D. Palermo in 1993 to treat…
TechnologySperm Injections, IntracytoplasmicReproductionFertilization
Patrick Christopher Steptoe (1913-1988)
By: Andrew Danielson
| Published: Jun 10, 2009
Patrick Christopher Steptoe was a British gynecologist responsible for major advances in gynecology and reproductive technology. Throughout his…
PeopleLaparoscopyReproductionBiographymedicine
Ethics and Induced Pluripotent Stem Cells
By: Katherine Brind'Amour
| Published: Jun 10, 2009
The recent development of induced pluripotent stem cells (iPSCs) and related technologies has caught the attention of scientists, activists,…
ethicsStem Cells
Charles Bonnet (1720-1793)
By: Cera R. Lawrence
| Published: Jun 10, 2009
Charles Bonnet was a naturalist and philosopher in the mid eighteenth century. His most important contribution to embryology was the discovery of…
PeopleParthenogenesisBiography
Adolf Ziegler
By: Karen Wellner
| Published: Jun 10, 2009
The scientific field of embryology experienced great growth in scope and direction in Germany from approximately 1850 to 1920. During this time,…
PeopleZiegler, Adolf, 1820-BiographyModels
Susceptibility Assay
By: Mary E. Sunderland
| Published: Jun 10, 2009
Charles Manning Child designed an experimental test, the susceptibility assay, to measure the effects of different toxins on developmental processes…
TechnologyChild, Charles Manning, 1869-1954Ovadifferentiation