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Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency as part of the process of delta-sigma analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). Delta-sigma modulation achieves high quality by utilizing a ...
V-mail. V-mail, short for Victory Mail, was a hybrid mail process used by the United States during the Second World War as the primary and secure method to correspond with soldiers stationed abroad. To reduce the cost of transferring an original letter through the military postal system, a V-mail letter would be censored, copied to film, and ...
Delta Sigma Theta. Delta Sigma Theta Sorority, Inc. (ΔΣΘ) is a historically African American sorority. The organization was founded by college-educated women dedicated to public service with an emphasis on programs that assist the African American community. Delta Sigma Theta was founded on January 13, 1913 by twenty-two women at Howard ...
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December 8, 1968 (aged 73) San Antonio, Texas, U.S. Alma mater. Howard University. Occupation (s) Actress and Teacher. Known for. Founder of Delta Sigma Theta. Myra Lillian Davis Hemmings (August 30, 1895 – December 8, 1968) was an American actress and teacher, and a founder of Delta Sigma Theta Sorority, Incorporated.
Below is a list of Delta Sigma Theta (ΔΣΘ) members, commonly referred to as Deltas. The sorority was founded on January 13, 1913, at Howard University [1] and was first incorporated in Washington, D.C., on February 9, 1913. [2] Its graduate chapters are named according to geographic location and "Alumnae" annexed to the service area's name. [3]
Education. Montrose High School (1908) Howard University (B.A., 1913) Alma mater. Howard University. Known for. Co-founder of Delta Sigma Theta, civil rights activist and organizer in Seattle. Bertha Pitts Campbell (June 30, 1889 – April 2, 1990) was a civil rights activist and one of the 22 founding members of Delta Sigma Theta Sorority, Inc ...
Delta Sigma Theta (ΔΣΘ), an international historically Black sorority, was founded on January 13, 1913, at Howard University.It has more than 1,000 collegiate and alumnae chapters located in the United States, Canada, England, Japan (Tokyo and Okinawa), Germany, the Virgin Islands, Liberia, Bermuda, Jamaica, The Bahamas, South Korea and Nigeria.