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Greek alphabet. Sigma ( / ˈsɪɡmə / SIG-mə; [1] uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator for summation.
Sigma Corporation (株式会社シグマ, Kabushiki-gaisha Shiguma) is a Japanese company, manufacturing cameras, lenses, flashes and other photographic accessories. All Sigma products are produced in the company's own Aizu factory in Bandai, Fukushima, Japan. Although Sigma produces several camera models, the company is best known for ...
Sigma male (or simply sigma) is a term in internet slang used most often to describe the archetype of a male who is a "lone wolf". [1] [2] While the name is a product of manosphere message boards in the 2010s, the term has gained widespread prominence within internet culture , and since the early 2020s, has become an internet meme . [3]
Sigma-Aldrich (formally MilliporeSigma) [5] [6] is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate Merck Group . Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 ...
Six Sigma (6σ) is a set of techniques and tools for process improvement.It was introduced by American engineer Bill Smith while working at Motorola in 1986.. Six Sigma strategies seek to improve manufacturing quality by identifying and removing the causes of defects and minimizing variability in manufacturing and business processes.
3. English drum and bass duo Sigma have released three studio albums, nine extended plays and 37 singles. [1] The duo signed to 3 Beat Records in the summer of 2013. They released their debut single "Summer Calling" with 3Beat featuring vocals from Taylor Fowlis. Their second single "Rudeboy" featuring Doctor was released in December 2013.
Sigma Sigma was founded in the summer of 1898 by Parke Johnson, Russell Wilson, Robert Humphreys, Walter Everhardt, Charles W. Adler, Smith Hickenlooper, Andrew Hickenlooper, and Ada Innes. Created as a sophomore society, by 1902 Sigma Sigma had become known as an upperclassmen male organization. The purpose has remained the same, advancement ...
Lean Six Sigma is a synergized managerial concept of Lean and Six Sigma. [5] Lean traditionally focuses on eliminating the eight kinds of waste ("muda"), and Six Sigma focuses on improving process output quality by identifying and removing the causes of defects (errors) and minimizing variability in (manufacturing and business) processes.