From the day of her entrance into Mount Holyoke College in Massachusetts, this Evanston, Illinois seeker of the truth knew medicine was to be her lifelong study. This search was to become concentrated on discovering the causes and hopefully the cures for epidemic illnesses.
After completing her internship and residency, she took post-doctoral studies in Clinical Medicine of the Tropics at the London School of Hygiene and Tropical Medicine. She then moved on to the University of Minnesota, where she explored advanced epidemiology; then to John Hopkins to study genetics. International appreciation of her work has come in the form of awards, fellowships, and endowments.
Internationally recognized as an expert in epidemiology, she is currently the Chair of the Department of Community and Family Medicine at the University of California at San Diego.
Elizabeth Barrett-Connor's main research has been into the factors promoting a healthy old age.
Wednesday, May 19, 2010
Monday, May 10, 2010
egyptian 332.egy.0 Louis J. Sheehan, Esquire
We were sitting face-to-face with the Egyptian generals, and a completely new situation began. It's like going from hot to cold. All of a sudden you meet people who are your enemies, and they speak to you...
Sunday, May 2, 2010
efforts 99.eff.995 Louis J. Sheehan, Esquire
The Real Fifth Force, and More?
In the Standard Model, there is at least one additional type of interaction beyond the four known forces (weak, strong, electromagnetic, and gravitational). This force is needed to explain how all the fundamental particle masses are generated. This part of the theory is the least tested experimentally, so there are a number of different competing ideas on how it may work.
The simplest version introduced one more force--the Higgs force--and one more particle type--the Higgs particle--related to this force. Searches for this particle and efforts to learn more about how particle masses occur are one active area of particle studies. Other models introduce more complicated explanations for particle masses.
In addition, there are many speculations about physics beyond the Standard Model that introduce additional types of extremely-weak interactions. These interactions can only be observed if they mediate a process, such as proton decay, that is otherwise totally forbidden. So far, no experimental evidence for such processes has been found. However physicists like this idea, since such additional processes are predicted when we try to unify the strong, weak and electromagnetic interactions into a single "Grand Unified Theory." Such unification is suggested by the similarities of the underlying mathematical theories for these very different interactions.
Unification of all four force types, including gravity, is also a goal for particle physics. Gravity has a different mathematical structure, and so far no complete quantum theory of gravity has been developed. String Theory suggests possible answers, but much work remains to be done.
In the Standard Model, there is at least one additional type of interaction beyond the four known forces (weak, strong, electromagnetic, and gravitational). This force is needed to explain how all the fundamental particle masses are generated. This part of the theory is the least tested experimentally, so there are a number of different competing ideas on how it may work.
The simplest version introduced one more force--the Higgs force--and one more particle type--the Higgs particle--related to this force. Searches for this particle and efforts to learn more about how particle masses occur are one active area of particle studies. Other models introduce more complicated explanations for particle masses.
In addition, there are many speculations about physics beyond the Standard Model that introduce additional types of extremely-weak interactions. These interactions can only be observed if they mediate a process, such as proton decay, that is otherwise totally forbidden. So far, no experimental evidence for such processes has been found. However physicists like this idea, since such additional processes are predicted when we try to unify the strong, weak and electromagnetic interactions into a single "Grand Unified Theory." Such unification is suggested by the similarities of the underlying mathematical theories for these very different interactions.
Unification of all four force types, including gravity, is also a goal for particle physics. Gravity has a different mathematical structure, and so far no complete quantum theory of gravity has been developed. String Theory suggests possible answers, but much work remains to be done.
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