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After nearly two decades building her company into the industry leader for third-party review of dental insurance claims, Dianne Rose, D.D.S., and principal of P&R Dental Strategies, Inc., was frustrated. In spite of many advances over the years in both dental x-ray technologies and the average quality of images supplied for review of dental claims, there was no consistency and, all-too-often, regardless of how up-to-date the x-ray equipment being used may have been, the images supplied were blurred and nearly useless for making accurate diagnostic determinations.
Quantum dots (QDs), nanoparticles that shine with extraordinary brightness when excited by light energy, have shown promise as new tools for detecting cancer at its earliest appearance, but concerns about potential toxicities have limited their clinical development. Researchers at the University of Buffalo may have found an answer to this limitation with their development of a new way to create QDs.
It takes a surprisingly small cluster of brain cells deep within the cerebellum to learn how to serve a tennis ball or line up a hockey shot. Researchers at McGill University led by Kathleen Cullen from the Department of Physiology have discovered that to learn new motor skills, neurons within the cerebellum engage in elegant, virtually mathematical, computations to quickly compare expected and actual sensory feedback. They then quickly readjust, changing the strength of connections between other neurons to form new patterns in the brain in order to accomplish the task at hand.
One of the basic tenets of evolution is speciation in which populations of the same species become so genetically and morphologically variable that they can be classified as two different species.
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