A technique to aid in rib cartilage excision for access to the internal mammary vessels.
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Cartilage↗
Biomedical subjects
John A Davison
Publications and source records attributed to John A Davison.
A simple method for determining the breast implant size in augmentation mammaplasty.
The authors describe a modified method for determining the size of implants in augmentation mammaplasty. Preoperatively, 35 women filled their brassieres with rice bags and expressed their opinion and wishes. Postoperatively, all of them were satisfied with their new breasts.
Breast Implants↗
The case for instant evolution.
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Biological Evolution↗
Is evolution finished?
Since speciation seems to be no longer in progress, one is compelled to conclude that sexual reproduction is incompetent as a macroevolutionary device. I propose that the reason some might insist that evolution is still in progress stems primarily from the influence of two authorities, the geologist Charles Lyell, with his doctrine of uniformitarianism and Gregor Mendel, the discoverer of sexually mediated transmission genetics. William Bateson, the father of modern genetics, clearly foresaw the failure of Mendelism to explain macroevolutionary change, a perspective with which I am in full agreement.
Biological Evolution↗
A Prescribed Evolutionary Hypothesis.
I propose that phylogeny took place in a manner similar to that of ontogeny by the derepression of preformed genomic information which was expressed through release from latency (derepression) by the restructuring of existing chromosomal information (position effects). Both indirect and direct evidence is presented in support of the Prescribed Evolutionary Hypothesis.
Animals↗