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Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
In music, 23 equal temperament, called 23-TET, 23-EDO ("Equal Division of the Octave"), or 23-ET, is the tempered scale derived by dividing the octave into 23 equal steps (equal frequency ratios). Each step represents a frequency ratio of 23 √ 2 , or 52.174 cents.
Ego psychology is a school of psychoanalysis rooted in Sigmund Freud's structural id-ego-superego model of the mind. An individual interacts with the external world as well as responds to internal forces.
With the introduction of the structural model, Freud intended to separate the terms unconscious and conscious from their spatially opposing meanings by formulating the three instances of id, ego and superego, which interlock with each other through their specific functions in a similar way to the organelles of a cell or parts of a machine, for ...
Abbreviations of weights and measures are pronounced using the expansion of the unit (mg = "milligram") and chemical symbols using the chemical expansion (NaCl = "sodium chloride"). Some initialisms deriving from Latin may be pronounced either as letters ( qid = "cue eye dee") or using the English expansion ( qid = "four times a day").
Ego-dystonic sexual orientation is a highly controversial mental health diagnosis that was included in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM) from 1980 to 1987 (under the name ego-dystonic homosexuality) and in the World Health Organization's (WHO) International Classification of Diseases (ICD) from 1990 to 2019.
List of medical abbreviations: Overview; List of medical abbreviations: Latin abbreviations; List of abbreviations for medical organisations and personnel; List of abbreviations used in medical prescriptions; List of optometric abbreviations
19-EDO can be represented with the traditional letter names and system of sharps and flats simply by treating flats and sharps as distinct notes, as usual in standard musical practice; however, in 19-EDO the distinction is a real pitch difference, rather than a notational fiction. In 19-EDO only B ♯ is enharmonic with C ♭, and E ♯ with F ♭.