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Delta Psi Sigma 

Delta Psi Sigma (or DYS) emerged in the summer of 2000. Delta Psi Sigma’s founding sisters have established a sisterhood to unite sisters from different cultural backgrounds. The founding sisters, Kate Chen, Danna Chang, Melissa D’Souza, Annie Park and Michelle Tang. The founding class originates from Buffalo University, Hofstra University, Manhattan College, and New York University.

Currently, DYS has 2 active chapters: NYC and Boston.
I love my sisters of Delta Psi Sigma.
Delta Psi Sigma by BArlene April 21, 2019

black pilled sigma pibels 

a person who is a black pilled sigma who thinks and is better than everyone

example
person 1 i hate laiths
person 2 thats so black pilled sigma pibels
It is the aim of great manufacturing companies (starting with Motorola in the 1980s) to remove substantially all error from both their fabrication and business processes—their goal is to achieve 6 sigma; that is, an error or defect rate that is equal to or less than: (1 – 99.99966%). Looked at another way, this implies that only one in every 294,118 things that a six sigma company does is defective and has to be either discarded or done again.

Now most service businesses can not possibly come close to matching a fabrication company but they should be able to achieve a 3 sigma state. Unfortunately, many service firms are in effect 1 sigma enterprises: that is, they have a level of proficiency with an error rate that is, basically, equivalent to two out of every three things they do are wrong (actually, it is 2 in 2.899 but at that point who cares, it’s pathetic.)
If you did nothing other than focus on getting your error rate down, which means doing things right the first time, practically every time, you could significantly increase your productivity and bottom line even if sales (top line revenues) didn't budge. A service business should aim to be at least 3 sigma not 1 sigma enterprise.

One way to help you get there is to start measuring things to see what your error rate is in the first place. You can not hope to improve unless you know your original state. The Hawthorne Effect suggests that as soon as you start to measure a thing, people will alter their behavior to improve their scores often resulting in significant increases in production and productivity.
1 sigma by ProfBruce April 21, 2011

kappa sigma 

a national fraternity.
has a chapter at CSI.
yoooo u know that kid darden in kappa sigma?
kappa sigma by cool stuff dude March 8, 2019

Alpha Chi Sigma 

academic co-ed "fraternity" for chemistry majors or those with a high interest in chemistry.

They are not, in fact, a true fraternity; instead, it is a chemistry special interest club full of wanna be Greeks.
Girl says: "I'm a brother of Alpha Chi Sigma."
member of real Greek organization says: "First, you'd be a sister. Second, ok, so your in a large study group for chemistry."

Sony sigma

Sony = Gold
Sigma = star

So Sony sigma define golden Star
Sony sigma by Stranger sigma November 23, 2021