منابع مشابه
Rising from the floor in older adults.
OBJECTIVE The primary goal was to determine the ability of older adults to rise from the floor. A secondary goal was to explore how rise ability might differ based on initial body positions and with or without the use of an assistive device. DESIGN Cross-sectional analysis of young, healthy older, and congregate housing older adults. SETTING University-based laboratory and congregate housin...
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A report of a patient with Lazarus phenomenon (the return of spontaneous circulation after cardiopulmonary resuscitation) following cardiac arrest (myocardium ischemia) is presented. A 65 year patient was found unconscious at home. He taken to the emergency department On arrival he was unconscious, his pupils fixed and dilated bilaterally. Resuscitation proceeded for 55 minutes. He was then pro...
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NEUTRINO TRAP is a tank filled with 100,000 gallons of a common cleaning fluid, tetrachloroethylene. It is located in a rock cavity 4,850 feet below the surface in the Homestake Mine in the town of Lead, S.D. The experiment is being run by Raymond Davis, Jr., Kenneth C. Hoffman and Don S. Harmer of Brookhaven National Laboratory. Suggested in 1964 by Davis and the author, the experiment was beg...
متن کاملNeutrinos from the Big Bang
The standard Big Bang cosmology predicts the existence of an, as yet undetected, relic neutrino background, similar to the photons observed in the cosmic microwave background. If neutrinos have mass, then such relic neutrinos are a natural candidate for the dark matter of the universe, and indeed were the first particles to be proposed for this role. This possibility has however been increasing...
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Unknown planet: Around 72% of the Earth’s surface is covered by oceans, and much of that surface is still unchartered territory for science. (Graphic: SuperStock.) More than seventy percent of the surface of our planet is covered by oceans. 88 percent of their area is deeper than 1,000 metres and thus difficult to access for research. There are only a handful of research submersibles that can d...
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ژورنال
عنوان ژورنال: Physics
سال: 2021
ISSN: ['2624-8174']
DOI: https://doi.org/10.1103/physics.14.96