Researchers have debated for more than two decades the likely impacts, if any, of global warming on the worldwide incidence of malaria, a mosquito-borne disease that infects more than 300 million people each year.
Mar 6, 2014
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Compared to those of us who live at sea level, the 2 million people worldwide who live above 4,500 meters (or 14,764 feet) of elevation—about the height of Mount Rainier, Mount Whitney, and many Colorado and Alaska peaks—have ...
Mar 7, 2023
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A University of Iowa-led team of researchers has used the gene editing method called CRISPR-Cas9 to disrupt a mutant gene that is responsible for some forms of glaucoma, one of the most common causes of irreversible blindness.
Oct 2, 2017
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Researchers at the University of California, San Diego School of Medicine and Sun Yat-sen University in China have shown that acute glaucoma in mice is largely an inflammatory disease and that high pressure in the eye causes ...
Jul 14, 2014
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Genetic adaptations for life at high elevations found in residents of the Tibetan plateau likely originated around 30,000 years ago in peoples related to contemporary Sherpa. These genes were passed on to more recent migrants ...
Feb 10, 2014
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Equipped with the latest gear and a thirst for adventure, mountaineers embrace the perils that come with conquering the world's highest peaks. Yet, even those who tread more cautiously at high altitudes are not immune from ...
Mar 2, 2024
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In patients with ST-segment elevation myocardial infarction (STEMI), the traditional Chinese medicine Tongxinluo, as an adjunctive therapy to guideline-directed treatment, is associated with significantly improved clinical ...
Oct 27, 2023
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Alberta men with elevated prostate-specific antigen (PSA) levels can now take a new blood test to determine their risk for clinically significant prostate cancer and potentially avoid an unnecessary biopsy.
Oct 6, 2023
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Optical coherence tomography (OCT)-guided percutaneous coronary intervention (PCI) leads to a larger minimum stent area but does not reduce the two-year rate of target vessel failure compared with angiography-guided PCI, ...
Aug 28, 2023
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Asundexian 50 mg administered to post-myocardial infarction patients inhibits factor XIa by more than 90% with no significant increase in bleeding, according to late breaking research presented in a Hot Line session on 28 ...
Aug 29, 2022
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The elevation of a geographic location is its height above a fixed reference point[citation needed], most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum). Elevation, or geometric height, is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface.
Less commonly, elevation is measured using the center of the Earth as the reference point. Due to equatorial bulge, there is debate as to which of the summits of Mt. Everest or Chimborazo is at the higher elevation, as the Chimborazo summit is further from the Earth's center while the Mt. Everest summit is higher above mean sea level.
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