Stigma (letter) sigma form ς never occurs inside a word and is never used as a numeral either. Uppercase forms of stigma as a numeral (Ϛ) are rare in practice; when they occur, they can often be confused with uppercase forms of another numeral symbol, koppa (Ϟϟ), which stands for 90. Stigma is encoded in Unicode as "Greek letter stigma" U+03DA (Ϛ) and "Greek small letter stigma" U+03DB (ϛ). Stigma (letter) Stigma (ϛ) is a ligature of the Greek letters sigma (Σ) and tau (Τ), which was used in writing Greek between the Middle Ages and the 19th century. It is also
Hazing in Greek letter organizations or new member programs completely secretive. Greek letter organizations have themselves taken measures to prevent hazing within their member chapters. As such, individual national organizations have taken various measures to ensure the safety of members with regard to hazing. The National Panhellenic Conference, which governs 26 national and international women’s sororities, includes sanctions against both individuals and groups ranging from member/chapter probation to expulsion of offending members or revocation of the chapter’s charter. The organization also runs an anti-hazing hotline for anonymous incident reporting. Similarly, the North American Interfraternity Conference released a resolution condemning the practice. In 2010, NIC CEO