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Argon (Greek ἀργόν, neuter singular form of ἀργός meaning "lazy" or "inactive") is named in reference to its chemical inactivity. This chemical property of this first noble gas to be discovered impressed the namers. [16] [17] An unreactive gas was suspected to be a component of air by Henry Cavendish in 1785. [18]
The species was merged with Rat coronavirus (discovered in 1970 [23]) and Puffinosis coronavirus (discovered in 1982 [59]) as Murine coronavirus in 2009. [60] 229E and OC43 were collectively named Human respiratory virus but merged as Human coronavirus 229E (HCoV-229E) in 2009. [61]
The human coronavirus NL63 shared a common ancestor with a bat coronavirus (ARCoV.2) between 1190 and 1449 CE. [76] The human coronavirus 229E shared a common ancestor with a bat coronavirus (GhanaGrp1 Bt CoV) between 1686 and 1800 CE. [77] More recently, alpaca coronavirus and human coronavirus 229E diverged sometime before 1960. [78]
George Pearson Smith (born 10 March 1941) [3] [4] is an American biologist and Nobel laureate. [5] He is a Curators' Distinguished Professor Emeritus of Biological Sciences at the University of Missouri in Columbia, Missouri , US.
The hunt for the origins of COVID-19 has gone dark in China, the victim of political infighting after a series of stalled and thwarted attempts to find the source of the virus that killed millions ...
The inertness of noble gases makes them useful whenever chemical reactions are unwanted. For example, argon is used as a shielding gas in welding and as a filler gas in incandescent light bulbs. Helium is used to provide buoyancy in blimps and balloons. Helium and neon are also used as refrigerants due to their low boiling points.
Li-Meng Yan or Yan Limeng (simplified Chinese: 闫丽梦; traditional Chinese: 閆麗夢) is a Chinese virologist, [3] known for her publications and interviews alleging that SARS-CoV-2 was made in a Chinese government laboratory.
Due to its unusual nature, they were uncertain whether the pathogen was a virus or a bacterium. Without any other method to study, the specimen was preserved for four years. Returning from a visit to the Lund University in Sweden in 1965, Andrewes told Tyrrell that there was a young Swedish surgeon who was able to grow complex viruses.