GreekChat.com Forums - AOII Chapters/Recruitment 2015-2016

Appalachian State University
Boone, NC
(186) Sigma Gamma 2009
September 18-27, 2015
AOII=42
Quota=38
Total=109 (Fall 2015)

Arkansas State University
Jonesboro, AR
(58) Sigma Omicron 1949
August 16-22, 2015
AOII=48
Quota=
Total=100

Auburn University
Auburn, AL
(54) Delta Delta 1946
August 8-14, 2015
AOII=80
Quota=80
Total=242 (Fall 2015)

Austin Peay State University
Clarksville, TN
(147) Pi Omicron 1986-1991/2014
September 8-13, 2015
AOII=37
Quota=31
Total=

Ball State University
Muncie, IN
(65) Kappa Kappa 1952
September 10-14, 2015
AOII=53
Quota=
Total=123

Birmingham-Southern College
Birmingham, AL
(31) Tau Delta 1925
September 10-13, 2015
AOII=22
Quota=
Total=58

Boise State University
Boise, ID
(109) Beta Sigma 1969-1987/Colony Spring 2016
September 17-20, 2015
AOII=
Quota=
Total=

Bowling Green State University
Bowling Green, OH
(139) Alpha Psi 1985
August 28-September 6, 2015
AOII=26
Quota=26
Total=72

Bryant University
Smithfield, RI
(191) Beta Upsilon 2012
January 2016
AOII=Fall 1
Quota=
Total=37

California Polytechnic State University
San Luis Obispo, CA
(146) Chi Psi 1986
September 24-29, 2015
AOII=97
Quota=
Total=230

California State University - Chico
Chico, CA
(202) Zeta Theta 2014
February 4-7, 2016
AOII=Fall 13
Quota=
Total=175

California State University - Long Beach
Long Beach, CA
(92) Lambda Beta 1965
September 12-15, 2015
AOII=52
Quota=
Total=115

California State University - Northridge
Northridge, CA
(104) Sigma Phi 1967
September 12-15, 2015
AOII=35
Quota=
Total=128

California State University - San Marcos
San Marcos, CA
(193) Theta Iota 2012
February 5-9, 2016
AOII=
Quota=
Total=125

Carleton University
Ottawa, ON
(167) Gamma Chi 1992
September 13-20, 2015/January 2016
AOII=35
Total=

Coe College
Cedar Rapids, IA
(108) Alpha Theta 1969
September 10-13, 2015
AOII=13
Quota=13
Total=55

Columbia University
New York, NY
(1) Alpha 1897/2013
September 2015/January-February 2016
AOII=
Quota=
Total=

Columbus State University
Columbus, GA
(185) Delta Lambda 2008
September 10-14, 2015
AOII=23
Quota=
Total=40

Cumberland University
Lebanon, TN
(175) Lambda Omicron 1999
AOII=Fall 10

Dalton State College
Dalton, GA
(201) Lambda Delta 2014
September 1-3, 2015
AOII=23

DePaul University
Chicago, IL
(171) Delta Rho 1996
September 21-27, 2015
AOII=44
Quota=42
Total=100

Duquesne University
Pittsburgh, PA
January 2016
(204) Alpha Mu 2014
AOII=Fall 3
Quota=
Total=89

East Carolina University
Greenville, NC
(79) Zeta Psi 1960-2005/2006
August 27-31, 2015
AOII=67
Quota=61
Total=154

East Stroudsburg University
East Stroudsburg, PA
(113) Phi Beta 1969
September 2015/February 2016
AOII=Fall 12+2
Quota=
Total=45

Eastern Kentucky University
Richmond, KY
(156) Epsilon Omega 1987
August 29-September 1, 2015
AOII=34
Quota=
Total=72

Eastern Washington University
Cheney, WA
(163) Tau Gamma 1989
October 1-5, 2015
AOII=37
Quota=
Total=72

Elon University
Elon, NC
(157) Epsilon Chi 1987
January-February 2016
AOII=
Quota=
Total=120

Florida International University
Miami, FL
(177) Pi Theta 2001
September 11-20, 2015
AOII=62
Quota=
Total=

Florida Southern College
Lakeland, FL
(53) Kappa Gamma 1946
September 14-18, 2015
AOII=33
Quota=
Total=43

Florida State University
Tallahassee, FL
(37) Alpha Pi 1928-1939/1949-1980/2013
August 16-23, 2015
AOII=92
Quota=90
Total=239

George Mason University
Fairfax, VA
(128) Gamma Alpha (1978
September 24-27, 2015
AOII=44
Quota=
Total=110

Georgia College & State University
Milledgeville, GA
(200) Phi Gamma 2013
August 9-13, 2015
AOII=79
Quota=78
Total=221 (Fall 2015)

Georgia Southern University
Statesboro, GA
(160) Alpha Lambda 1988
August 11-15, 2015
AOII=73
Quota=
Total=226 (Fall 2015)

Georgia State University
Atlanta, GA
(70) Gamma Sigma 1956
September 2-13, 2015
AOII=33
Quota=31
Total=67

Gettysburg College
Gettysburg, PA
Colony Recruitment September 25-27, 2015
September 4-6, 2015
AOII=77
Quota=22
Total=

Grand Valley State University
Allendale, MI
(162) Lambda Eta 1989
September 2015
AOII=45
Quota=45
Total=128 (Fall 2015)

Hartwick College
Oneonta, NY
(64) Sigma Chi 1952
AOII=7

Huntingdon College
Montgomery, AL
(126) Sigma Delta 1975
September 2-9, 2015
AOII=18
Quota=
Total=40

Illinois State University
Normal, IL
(209) Colony Recruitment October 9-11, 2015
September 3-7, 2015
AOII=115
Quota=62
Total=130

Indiana State University
Terre Haute, IN
(66) Kappa Alpha 1953
September 9-13, 2015
AOII=25
Quota=27
Total=65

Indiana University
Bloomington, IN
(20) Beta Phi 1916-1996/1999
January 7-17, 2016
AOII=
No Panhellenic Quota
No Panhellenic Total

Iowa State University
Ames, IA
(106) Iota Sigma 1968
August 14-20, 2015
AOII=52
Quota=52
Total=172 (Fall 2015)

Jacksonville State University
Jacksonville, AL
(164) Delta Epsilon 1990
August 19-24, 2015
AOII=27
Quota=27
Total=65

Kennesaw State University
Kennesaw, GA
(188) Beta Zeta 2010
August 22-31, 2015
AOII=85
Quota=85
Total=

Kentucky Wesleyan College
Owensboro, KY
(78) Beta Chi 1959-1991/2013
September 1-6, 2015
AOII=11
Total=35

LaGrange College
LaGrange, GA
(120) Lambda Chi 1971
September 7-11, 2015
AOII=17
Quota=
Total=45

Lehigh University
Bethlehem, PA
(136) Lambda Upsilon 1984
January 2016
AOII=
Quota=
Total=80

McGill University
Montreal, QU
(49) Kappa Phi 1939-1973/1989
September 19-?, 2015
AOII=32
Quota=
Total=30

Miami University
Oxford, OH
(26) Omega 1919
January 28-February 6, 2016
AOII=
Quota=
Total=150

Michigan State University
East Lansing, MI
(45) Beta Gamma 1934-1969/1989
September 7-10, 2015
AOII=42
Quota=51
Total=134

Middle Tennessee State University
Murfreesboro, TN
(138) Rho Omicron 1985
September 10-14, 2015
AOII=40
Quota=
Total=80

Monmouth University
West Long Branch, NJ
(198) Iota Theta 2013
January-February 2016
AOII=
Quota=
Total=

Montana State University
Bozeman, MT
(22) Alpha Phi 1917
August 27-30, 2015
AOII=31
Quota=31
Total=77 (Fall 2015)

Morningside College
Sioux City, IA
(97) Theta Chi 1966
September 1-?, 2015
AOII=5?

Murray State University
Murray, KY
(83) Delta Omega 1961
August 12-16, 2015
AOII=39
Quota=
Total=137

Northeastern State University
Tahlequah, OK
(173) Chi Theta 1997
September 9-12, 2015
AOII=38
Quota=38
Total=76

Northern Arizona University
Flagstaff, AZ
(90) Theta Omega 1963
September 4-7, 2015
AOII=72
Quota=
Total=176

Northern Kentucky University
Highland Heights, KY
(197) Nu Omega 2013
August 28-30, 2015
AOII=46
Quota=46
Total=

Northwestern State University
Natchitoches, LA
(172) Kappa Chi 1997
September 3-6, 2015
AOII=33
Quota=
Total=80

The Ohio State University
Columbus, OH
(169) Chi Epsilon 1993
January 2016
AOII=
Quota=
Total=157

Ohio University
Athens, OH
(159) Omega Upsilon 1988
September 5-13, 2015
AOII=52
Quota=47
Total=125

Oklahoma State University
Stillwater, OK
(192) Omega Sigma 2012
August 5-9, 2015
AOII=65
Quota=64
Total=198 (Fall 2015)

Oregon State University
Corvallis, OR
(34) Alpha Rho 1926-1935/1946-1992/2014
September 24-October 2, 2015
AOII=38
Quota=40
Total=135

Pennsylvania State University
State College, PA
(38) Epsilon Alpha 1929-1973/1982
August 30-September 8, 2015
AOII=69
Quota=56
Total=203 (Fall 2015)

Purdue University
West Lafayette, IN
(89) Phi Upsilon 1963-2003/2012
August 28-September 6, 2015
AOII=38
Quota=28+8
Total=138 (Fall 2015)

Quincy University
Quincy, IL
(174) Epsilon Sigma 1999
September 2015
AOII=5
Total=40

Ramapo College of New Jersey
Mahwah, NJ
(190) Alpha Nu 2011
February 2016
AOII=
Quota=
Total=60

Rhodes College
Memphis, TN
(33) Kappa Omicron 1925
August 30-September 7, 2015
AOII=48
Quota=
Total=95

Rollins College
Winter Park, FL
(178) Mu Lambda 2002
January 2016
AOII=
Quota=
Total=70

Rose-Hulman Institute of Technology
Terre Haute, IN
(183) Delta Xi 2007
September 13-27, 2015
AOII=15
Quota=15
Total=45

Saint Joseph's University
Newton Square, PA
(179) Sigma Beta 2005
January 2016
AOII=
Quota=
Total=156 (Revised Spring 2015)

Sam Houston State University
Huntsville, TX
(199) Sigma Theta 2013
August 26-29, 2015
AOII=29
Quota=29
Total=95

Samford University
Birmingham, AL
(170) Rho Delta 1995
September 9-13, 2015
AOII=77
Quota=
Total=194

San Jose State University
San Jose, CA
(56) Delta Sigma 1948-1970/1988
August 28-31, 2015
AOII=36
Quota=
Total=110

Seton Hall University
South Orange, NJ
(203) Gamma Phi 2014
January-February 2016
AOII=
Quota=
Total=101 (Revised Spring 2015)

Shippensburg University
Shippensburg, PA
(137) Tau Lambda 1984
September 10-14, 2015/January-February 2016
AOII=Fall 4
Quota=
Total=40

Slippery Rock University
Slippery Rock, PA
(100) Sigma Rho 1966
September 11-14, 2015/February 2016
AOII=Fall 11
No Quota
Total=55

Sonoma State University
Rohnert Park, CA
(195) Xi Rho 2012
September 4-7, 2015
AOII=55
Quota=
Total=

Southeastern Louisiana University
Hammond, LA
(88) Kappa Tau 1963
August 10-15, 2015
AOII=32
Quota=
Total=65

Tarleton State University
Stephenville, TX
Colony Recruitment September 25-27, 2015
September 3-7, 2015
AOII=120
Quota=59
Total=

Texas Christian University
Fort Worth, TX
(194) Lambda Rho 2012
August 16-20, 2015
AOII=78
Quota=63+7
Total=241 (Fall 2015)

Texas Woman's University
Denton, TX
(135) Delta Theta 1984
September 11-13, 2015
AOII=28
Quota=
Total=65?

Towson University
Towson, MD
(150) Theta Beta 1986
February 2016
AOII=
Quota=
Total=85

Transylvania University
Lexington, KY
(154) Tau Omega 1987
September 14-27, 2015
AOII=23
Quota=
Total=88

Tufts University
Medford, MA
(10) Delta 1908-1969/1987
January 2016
AOII=
Quota=
Total=123

University of Alabama
Tuscaloosa, AL
(103) Alpha Delta 1967
August 7-15, 2015
AOII=148
Quota=120+7
Total=355

University of Alabama at Birmingham
Birmingham, AL
(153) Zeta Pi 1987
August 18-21, 2015
AOII=32
Quota=31
Total=104 (Fall 2015)

University of Alabama at Huntsville
Huntsville, AL
(189) Delta Tau 2011
August 24-29, 2015
AOII=27
Quota=
Total=65

University of Arkansas
Fayetteville, AR
(181) Xi Omicron 2007
August 15-22, 2015
AOII=166
Quota=
Total=440?

University of Arkansas - Fort Smith
Fort Smith, AR
(196) Upsilon Beta 2013
August 26-30, 2015
AOII=22
Quota=23
Total=57 (Fall 2015)

University of British Columbia
Vancouver, BC
(43) Beta Kappa 1931-1985/2011
September 19-26, 2015
AOII=31
Quota=
Total=85

University of Calgary
Calgary, AB
(143) Kappa Lambda 1985
September 15-17, 2015
AOII=9
Quota=
Total=38

University of California
Berkeley, CA
(7) Sigma 1907
August 28-September 2, 2015
AOII=40
Quota=33+6
Total=135

University of California - San Diego
LaJolla, CA
(127) Lambda Iota 1977-1998/2014
October 2-7, 2015
AOII=39
Quota=
Total=111

University of Central Missouri
Warrensburg, MO
(87) Delta Pi 1962
August 20-24, 2015
AOII=34
Quota=34
Total=111 (Fall 2015)

University of Chicago
Chicago, IL
(142) Phi Chi 1985
October 8-11, 2015
AOII=45
Quota=39
Total=100

University of Evansville
Evansville, IN
(62) Chi Lambda 1951
September 9-13, 2015
AOII=23
Quota=
Total=70

University of Florida
Gainesville, FL
(57) Gamma Omicron 1948
August 19-25, 2015
AOII=82
Quota=65+17
Total=185

University of Georgia
Athens, GA
(46) Lambda Sigma 1935
August 11-17, 2015
AOII=72
Quota=64+7
Total=260 (Fall 2015)

University of Illinois
Urbana, IL
(15) Iota 1911
August 28-September 7, 2015
AOII=59
Quota=49
Total=188

University of Kentucky
Lexington, KY
(132) Kappa Omega 1982
August 16-21, 2015
AOII=84
Quota=90
Total=249

University of LaVerne
LaVerne, CA
(182) Lambda Alpha 2007
February 2016
AOII=Fall 6
Quota=
Total=60

University of Louisiana - Lafayette
Lafayette, LA
(69) Delta Beta 1956-1983/1991
September 3-7, 2015
AOII=62
Quota=
Total=121?

University of Louisiana - Monroe
Monroe, LA
(75) Lambda Tau 1958
August 25-30, 2015
AOII=47
Quota=42
Total=60

University of Louisville
Louisville, KY
(134) Pi Alpha 1983
August 15-19, 2015
AOII=41
Quota=38
Total=104

University of Maine
Orono, ME
(11) Gamma 1908
September 4-8, 2015
AOII=17
Quota=17
Total=71

University of Maryland
College Park, MD
(30) Pi Delta 1924
January-February 2016
AOII=Fall 4
Quota=
Total=103

University of Minnesota
Minneapolis, MN
(16) Tau 1912
September 6-12, 2015
AOII=55
Quota=54
Total=138

University of Mississippi
Oxford, MS
(74) Nu Beta 1958
September 27-October 4, 2015
AOII=154
Quota=142
Total=399

University of Nebraska
Lincoln, NE
(6) Zeta 1903
August 17-22, 2015
AOII=52
Quota=50
Total=150

University of Nebraska - Kearney
Kearney, NE
(111) Phi Sigma 1969
August 17-21, 2015
AOII=39
Quota=39
Total=100

University of Nevada - Reno
Reno, NV
(206) Delta Nu 2015
September 2-7, 2015
AOII=77
Quota=77
Total=222 (Fall 2015)

University of Northern Colorado
Greeley, CO
(176) Epsilon Gamma 2000
September 9-14, 2015
AOII=28+1
Quota=28
Total=84

University of Oklahoma
Norman, OK
(29) Xi 1924-1933/2002
August 13-18, 2015
AOII=81
Quota=80
Total=275

University of South Alabama
Mobile, AL
(107) Gamma Delta 1969
August 19-24, 2015
AOII=47
Quota=
Total=65

University of South Carolina - Aiken
Aiken, SC
(180) Chi Phi 2006
September 14-18, 2015
AOII=16
Quota=
Total=38

University of South Florida
Tampa, FL
(141) Gamma Theta 1985
August 29-September 7, 2015
AOII=53
Quota=
Total=138

University of Tennessee
Knoxville, TN
(4) Omicron 1902
August 13-17, 2015
AOII=63
Quota=51+8
Total=194 (Fall 2015)

University of Tennessee - Martin
Martin, TN
(98) Tau Omicron 1966
August 28-30, 2015
AOII=31
Quota=31
Total=90

University of Texas - San Antonio
San Antonio, TX
(129) Upsilon Lambda 1978
August 25-31, 2015
AOII=31
Quota=
Total=55

University of Toledo
Toledo, OH
(51) Theta Psi 1944
August 30-September 6, 2015
AOII=30
Quota=
Total=75

University of Toronto
Toronto, ON
(40) Beta Tau 1930
September 18-20, 2015
AOII=13
Quota=
Total=40

University of Washington
Seattle, WA
(18) Upsilon 1915-1995/2013
September 13-18, 2015
AOII=42
Quota=38
Total=118

University of Waterloo
Waterloo, ON
(184) Lambda Epsilon 2008
September 28-?, 2015
AOII=13
Total=34

University of Western Ontario
London, ON
(151) Iota Chi 1986
September 18-21, 2015
AOII=27
Quota=
Total=62

University of Wisconsin - Milwaukee
Milwaukee, WI
(76) Phi Delta 1958-1995/2014
September 18-21, 2015
AOII=21
Total=

University of Wisconsin - River Falls
River Falls, WI
(168) Kappa Sigma 1993
September 8-13, 2015
AOII=2
Quota=
Total=35

Vanderbilt University
Nashville, TN
(23) Nu Omicron 1917
January 9-16, 2016
AOII=
Quota=
Total=135

Virginia Commonwealth University
Richmond, VA
(149) Rho Beta 1986-1995/2008
September 4-7, 2015
AOII=48
Quota=39
Total=119 (Fall 2015)

Wagner College
Staten Island, NY
(61) Theta Pi 1951
September 2015/February 2016
AOII=
Quota=
Total=45

Washington College
Chestertown, MD
(47) Sigma Tau 1938
September 2015/January 2016
AOII=Fall 5
Quota=
Total=50

Washington State University
Pullman, WA
(42) Alpha Gamma 1931-1937/1961
August 17-22, 2015
AOII=54
Quota=53
Total=173 (Fall 2015)

Washington University
Saint Louis, MO
(187) Delta Kappa 2009
January 2016
AOII=Fall 6
Quota=
Total=176

West Virginia University
Morgantown, WV
(148) Sigma Alpha 1986
September 27-October 4, 2015
AOII=44
Quota=
Total=148

Western Kentucky University
Bowling Green, KY
(94) Alpha Chi 1965
August 19-22, 2015
AOII=50
Quota=50
Total=158 (Fall 2015)

Western Michigan University
Kalamazoo, MI
(63) Kappa Pi 1951-197?/1986
September 15-20, 2015
AOII=26
Quota=25
Total=92 (Fall 2015)

Wingate University
Wingate, NC
(205) Alpha Epsilon 2016
September 17-20, 2015
AOII=22
Quota=22
Total=50

Wright State University
Dayton, OH
(131) Kappa Delta 1981-1985/2016
September 20-27, 2015
AOII=18
Quota=
Total=54

Youngstown State University
Youngstown, OH
(72) Phi Lambda 1957-1982/2011
September 10-12, 2015
AOII=11
Quota=
Total=41

Charters Held in Trust and Pending Colonies
Arizona State University Colony Fall 2016
(121) Bemidji State University (Beta Epsilon 1971-1984)
(9) Brown University (Beta 1908-1908)
(36) Butler University (Beta Theta 1927-1940)
(155) Canisius College (Nu Delta 1987-1998)
(55) Centenary College (Chi Sigma 1947-1951)
(112) Chadron State University (Nu Zeta 1969-1977)
(12) Cornell University (Epsilon 1908-1962/1989-2008)
(165) C.W. Post Campus- Long Island University (Psi Delta 1991-1997)
(41) Denison University (Alpha Tau 1930-1970)
(8) DePauw University (Theta 1907-1979/1983-2000)
(130) Duke University (Delta Upsilon 1979-2008)
(68) East Tennessee State University (Phi Alpha 1955-1978)
(122) Eastern Illinois University (Epsilon Iota 1972-1975)
(86) Eastern Michigan University (Beta Pi 1962-1979)
(114) Florida Atlantic University (Alpha Beta 1969-1971)
(60) Hanover College (Phi Omicron 1950-1985)
(59) Idaho State University (Iota Alpha 1950-1981)
(71) Illinois Wesleyan University (Beta Lambda 1956-2000)
(96) Indiana University of Pennsylvania (Gamma Beta 1966-1992)
(73) Lambuth University (Omega Omicron 1957-2011)
(48) Louisiana State University (Alpha Omicron 1938-1980)
(116) Morehead State University (Omega Xi 1970-1985)
(3) New York University (Nu 1900-1961)
(110) Northeastern University (MA) (Chi Pi 1969-1973)
(67) Northern Illinois University (Nu Iota 1954-1982/1991-2007)
(119) Northwestern Missouri State University (Lambda Omega 1971-1981)
(13) Northwestern University (Rho 1909-1973)
(102) Ohio Northern University (Kappa Pi 1966-1995)
(91) Parsons College (Nu Sigma 1964-1966)
(82) Portland State University (Rho Sigma 1961-1972)
(5) Randolph-Macon Women's College (Kappa 1903-1960)
(152) Saint Leo University (Gamma Upsilon 1986-2002)
(158) Saint Louis University (Upsilon Epsilon 1988-1998)
(99) Saint Norbert College (Sigma Sigma 1966-1968)
(118) Southern Illinois University (Gamma Iota 1970-1973)
(19) Southern Methodist University (Nu Kappa 1915-1942)
(14) Stanford University (Lambda 1910-1944)
(161) State University of New York - Albany (Delta Psi 1988-2015)
(17) Syracuse University (Chi 1914-1958/1985-2000)
(166) Texas State University (Zeta Kappa 1992-2002)
(145) Thomas More College (Alpha Beta Tau 1986-1992)
(2) Tulane University (Pi 1898-1976-1986-1995)
(77) University of Arizona (Upsilon Alpha 1959-1981/1989-1996)
(125) University of California - Davis (Chi Alpha 1975-1997)
(32) University of California - Los Angeles (Kappa Theta 1925-1973)
(80) University of Central Oklahoma (Chi Omicron 1960-1966)
(84) University of Charleston (WV) (Phi Kappa 1961-1978)
(39) University of Cincinnati (Theta Eta 1929-1958)
(35) University of Colorado (Chi Delta 1927-2008)
University of Connecticut Colony Fall 2016
(123) University of Delaware (Delta Chi 1972-1995)
(25) University of Kansas (Phi 1918-1969/1980-1996)
(27) University of Michigan (Omicron Pi 1921-196?/1978-1993) Colony 2016 Quota 56
(144) University of Missouri (Delta Alpha 1986-1994)
(93) University of Montana (Beta Rho 1965-1988)
(124) University of North Alabama (Alpha Kappa 1973-1983)
(28) University of Oregon (Alpha Sigma 1923-1989)
(24) University of Pennsylvania (Psi 1918-1958)
(44) University of South Carolina (Delta Phi 1933-1937/1978-1983)
(52) University of Southern California (Nu Lambda 1945-1962/1976-1990)
(50) University of Texas (Pi Kappa 1941-1973)
(95) University of Texas - Pan American (Rho Alpha 1966-1971)
(133) University of Virginia (Chi Beta 1982-1997)
(21) University of Wisconsin (Eta 1917-1942)
(85) University of Wisconsin - Lacrosse (Sigma Lambda 1961-1981)
(101) University of Wisconsin - Stout (Iota Tau 1966-1984)
(105) University of Wisconsin - Whitewater (Lambda Phi 1967-1973)
(81) Utah State University (Gamma Tau 1960-1970)
(115) Western Illinois University (Sigma Iota 1970-1986)

*****************************
AOII Extension Presentations
Belmont University (Summer 2014) - also presenting: Gamma Phi Beta, Kappa Delta
Kenyon College (October 2015) - also presenting Phi Sigma Sigma