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History of HIV/AIDS. False-color scanning electron micrograph of HIV-1, in green, budding from cultured lymphocyte. AIDS is caused by a human immunodeficiency virus (HIV), which originated in non-human primates in Central and West Africa. While various sub-groups of the virus acquired human infectivity at different times, the present pandemic ...
Decoupage or découpage ( / ˌdeɪkuːˈpɑːʒ /; [ 1] French: [dekupaʒ]) is the art of decorating an object by gluing colored paper cutouts onto it in combination with special paint effects, gold leaf, and other decorative elements. Commonly, an object like a small box or an item of furniture is covered by cutouts from magazines or from ...
Synonyms [ 1] Human respiratory syncytial virus (hRSV) Respiratory syncytial virus (RSV) Respiratory syncytial virus ( RSV ), [ a] also called human respiratory syncytial virus ( hRSV) and human orthopneumovirus, is a contagious virus that causes infections of the respiratory tract. It is a negative-sense, single-stranded RNA virus. [ 2]
Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms. UVGI primarily inactivates microbes by damaging their genetic material, thereby inhibiting their capacity to carry out vital functions. [ 1] The use of UVGI extends to an ...
Hand sanitizer. Hand sanitizer (also known as hand antiseptic, hand disinfectant, hand rub, or handrub) is a liquid, gel or foam generally used to kill many viruses / bacteria / microorganisms on the hands. [ 3][ 4] It can also come in the form of a cream, spray, or wipe. [ 5] In most settings, hand washing with soap and water is generally ...
1928 – International Bureau of Standardization of Man Made Fibers founded. [24] 1939 – US passes Wool Products Labeling Act, requiring truthful labeling of wool products according to origin. [25] 1940 – Spectrophotometer invented, with impact on commercial textile dye processes. 1942 – First patent for fabric singeing awarded in US. [26]
These fluids could contain deadly viruses or other contamination. Ultraviolet helps detect organic material deposits that remain on surfaces where periodic cleaning and sanitizing may have failed. It is used in the hotel industry, manufacturing, and other industries where levels of cleanliness or contamination are inspected. [90] [91] [92] [93]
This timeline of computer viruses and wormspresents a chronological timeline of noteworthy computer viruses, computer worms, Trojan horses, similar malware, related research and events. 1960s. [edit] John von Neumann's article on the "Theory of self-reproducing automata" is published in 1966.[1] The article is based on lectures given by von ...