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 if not all, hazing activities take place either during pledge (or “interest”) activities or rituals, which are almost always secretive. Additionally, since many Greek letter organizations, such as those governed by the National Pan-Hellenic Council (NPHC) and the National Association of Latino Fraternal Organizations (NALFO), prohibit their pledges (also known as “interests” or “new members”) from revealing their association with their organization until they have been initiated, it becomes increasingly difficult for institutions to reach out to members in anti-hazing efforts. It also becomes virtually impossible for these pledges or interests to reach out for help, especially if they wish