HandWiki | Encyclopedia MDPI

Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

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Biography

Anousheh Ansari

Anousheh Ansari (Persian: Anuŝe Ansāri‎; née Raissyan;[1] born September 12, 1966) is an Iranian-American engineer and co-founder and chairwoman of Prodea Systems. Her previous business accomplishments include serving as co-founder and CEO of Telecom Technologies, Inc. (TTI). The Ansari family is also the title sponsor of the Ansari X Prize. On September 18, 2006, a few days after her 40th

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17 Nov 2022

Topic Review

Uncompetitive Inhibitor

Uncompetitive inhibition, also known as anti-competitive inhibition, takes place when an enzyme inhibitor binds only to the complex formed between the enzyme and the substrate (the E-S complex). Uncompetitive inhibition typically occurs in reactions with two or more substrates or products. While uncompetitive inhibition requires that an enzyme-substrate complex must be formed, non-competitive inhibition can occur with or without the substrate present. Uncompetitive inhibition is distinguished from competitive inhibition by two observations: first uncompetitive inhibition cannot be reversed by increasing [S] and second, as shown, the Lineweaver–Burk plot yields parallel rather than intersecting lines. This behavior is found in the inhibition of acetylcholinesterase by tertiary amines (R3N). Such compounds bind to the enzyme in its various forms, but the acyl-intermediate-amine complex cannot break down into enzyme plus product.

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16 Nov 2022

Biography

Clemens Winkler

Clemens Alexander Winkler (December 26, 1838 – October 8, 1904) was a German chemist who discovered the element germanium in 1886, solidifying Dmitri Mendeleev's theory of periodicity. Winkler was born in 1838 in Freiberg, Kingdom of Saxony the son of a chemist who had studied under Berzelius. Winkler's early education was at schools in Freiberg, Dresden, and Chemnitz. In 1857 he entered th

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17 Nov 2022

Topic Review

Blue in Culture

The colour blue has been important in culture, politics, art and fashion since ancient times. Blue was used in ancient Egypt for jewellery and ornament. In the Renaissance, blue pigments were prized for paintings and fine blue and white porcelain. in the Middle Ages, deep rich blues made with cobalt were used in stained glass windows. In the 19th century, the colour was often used for military uniforms and fashion. As the colour that most symbolized harmony, blue was chosen as the colour of the flags of the United Nations and the European Union. Surveys in the US and Europe show that blue is the colour most commonly associated with harmony, faithfulness, confidence, distance, infinity, the imagination, cold, and occasionally with sadness. In US and European public opinion polls it is the most popular colour, chosen by almost half of both men and women as their favourite colour. The same surveys also showed that blue was the colour most associated with the masculine, just ahead of black, and was also the colour most associated with intelligence, knowledge, calm, and concentration.

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16 Nov 2022

Biography

James Van Allen

James Alfred Van Allen (September 7, 1914 – August 9, 2006) was an American space scientist at the University of Iowa. He was instrumental in establishing the field of magnetospheric research in space. The Van Allen radiation belts were named after him, following their discovery by his Geiger–Müller tube instruments on the 1958 satellites: (Explorer 1, Explorer 3, and Pioneer 3)[1][2][3]

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17 Nov 2022

Biography

John Ellis

Jonathan Richard Ellis CBE FRS HonFInstP (born 1 July 1946[1]) is a British theoretical physicist who is currently Clerk Maxwell Professor of Theoretical Physics at King's College London.[2] After completing his secondary education at Highgate School, he attended King's College, Cambridge, earning his PhD in theoretical (high-energy) particle physics in 1971. After brief post-doc positions in t

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17 Nov 2022

Biography

John Fenn

John Bennett Fenn (June 15, 1917 – December 10, 2010) was an American professor of analytical chemistry who was awarded a share of the Nobel Prize in Chemistry in 2002. Fenn shared half of the award with Koichi Tanaka for their work in mass spectrometry. The other half of the 2002 award went to Kurt Wüthrich. Fenn's contributions specifically related to the development of electrospray ioniza

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17 Nov 2022

Biography

Ambrose Swasey

Ambrose Swasey (December 19, 1846 – June 15, 1937) was an United States mechanical engineer, inventor, entrepreneur, manager, astronomer, and philanthropist. With Worcester R. Warner he co-founded the Warner & Swasey Company. Swasey was born near Exeter, New Hampshire [1] to Nathaniel and Abigail Swasey. He apprenticed as a machinist at the Exeter Machine Works and was afterwards employed a

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16 Nov 2022

Biography

Greg Winter

Sir Gregory Paul Winter CBE FRS FMedSci (born 14 April 1951)[1][2] is a Nobel Prize-winning British biochemist best known for his work on the therapeutic use of monoclonal antibodies. His research career has been based almost entirely at the MRC Laboratory of Molecular Biology and the MRC Centre for Protein Engineering, in Cambridge, England. He is credited with invented techniques to both human

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16 Nov 2022

Biography

William T. Kane

William T. Kane (September 8, 1932 – September 23, 2008) was a physicist for Corning Incorporated, formerly Corning Glass Works, Inc., in Corning, New York, who held patents in crystallography and heat-sensing technology—developments which contributed to the early processing and manufacture of fiber optics. He was also the Corning representative for the establishment of international standar

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16 Nov 2022

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