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Omicron (B.1.1.529) is a variant of SARS-CoV-2 first reported to the World Health Organization (WHO) by the Network for Genomics Surveillance in South Africa on 24 November 2021.[10][11] It was first detected in Botswana and has spread to become the predominant variant in circulation around the world.[12] Following the original B.1.1.529 ...
- 24 November 2021; 21 months ago
- Omicron
- B.1.1.529
- South Africa
The Alpha variant (B.1.1.7) was [2] [3] a SARS-CoV-2 variant of concern. It was estimated to be 40–80% more transmissible than the wild-type SARS-CoV-2 (with most estimates occupying the middle to higher end of this range). Scientists more widely took note of this variant in early December 2020, when a phylogenetic tree showing viral ...
- November 2020; 2 years ago
- Alpha
- B1.1.1.7
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.
- History
- Slang and Other Names For The Exclamation Mark
- Languages
- Proper Names
- Warnings
- Use in Various Fields
- See Also
- Further Reading
Graphically, the exclamation mark is represented by variations on the theme of a full stop point with a vertical line above. One theory of its origin posits derivation from a Latin exclamation of joy, namely io, analogous to "hooray"; copyists wrote the Latin word io at the end of a sentence, to indicate expression of joy. Over time, the i moved ab...
Now obsolete, the name ecphonemewas documented in the early 20th century. In the 1950s, secretarial dictation and typesetting manuals in America referred to the mark as "bang", perhaps from comic books – where the ! appeared in dialogue bubbles to represent a gun being fired – although the nickname probably emerged from letterpress printing. This "...
The exclamation mark is mainly used in languages that use the Latin alphabet, although usage varies slightly. It has also been adopted in languages written in other scripts, such as languages written with Cyrillic or Arabic scripts, Chinese characters, and Devanagari.
Although not part of dictionary words, exclamation marks appear in some brand names and trade names, including Yum! Brands (parent of fast food chains like Taco Bell and KFC), Web services Yahoo! and Joomla!, and the online game Kahoot!. It appears in the titles of stage and screen works, especially comedies and musicals; examples include the game ...
Exclamation marks are used to emphasize a precautionary statement. On warning signs, an exclamation mark is often used to draw attention to a warning of danger, hazards, and the unexpected. These signs are common in hazardous environments or on potentially dangerous equipment. A common type of this warning is a yellow triangle with a black exclamat...
Mathematics and formal logic
In elementary mathematics, the symbol represents the factorial operation. The expression n! means "the product of the integers from 1 to n". For example, 4! (read four factorial) is 4 × 3 × 2 × 1 = 24. (0! is defined as 1, which is a neutral element in multiplication, not multiplied by anything.) Additionally, it can also represent the uniqueness quantifier or, if used in front of a number, it can represent a subfactorial. In linear logic, the exclamation mark denotes one of the modalities th...
Computing
In computing, the exclamation mark is ASCII character 33 (21 in hexadecimal). Due to its availability on even early computers, the character was used for many purposes. The name given to "!" by programmers varies according to their background, though it was very common to give it a short name to make reading code aloud easier. "Bang" is very popular. In the UK the term pling was popular in the earlier days of computing, whilst in the United States, the term shriek was used. It is claimed that...
Video games
The exclamation mark can be used in video games to signify that a character is startled or alarmed. In the Metal Gear and Paper Marioseries, an exclamation mark appears over enemies' heads when they notice the player. In massively multiplayer online (MMO) games such as World of Warcraft, an exclamation mark hovering over a character's head is often used to indicate that they are offering a quest for the player to complete. In Dota 2, an exclamation mark is shown above the head of a unit if it...
Hazrat, Florence (2022). An admirable point : a brief history of the exclamation mark!. London: Profile Books. ISBN 978-1800811973.
English is a West Germanic language in the Indo-European language family, whose speakers, called Anglophones, originated in early medieval England.[4][5][6] The namesake of the language is the Angles, one of the ancient Germanic peoples that migrated to the island of Great Britain. English is the most spoken language in the world, primarily ...
- Manually coded English, (multiple systems)
Wikipedia is a free online encyclopedia that anyone can edit, and millions already have . Wikipedia's purpose is to benefit readers by presenting information on all branches of knowledge. Hosted by the Wikimedia Foundation, it consists of freely editable content, whose articles also have numerous links to guide readers towards more information.
Biology is the scientific study of life.[1][2][3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field.[1][2][3] For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another ...
