In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[Q]: One variant of this phenomenon can be used to tune the electronic properties of boron nitride nanotubes from nearly insulating to metallic. Another variant of this phenomenon is induced by interference of standing laser waves to trap atoms of a Bose-Einstein condensate loaded into an optical lattice. Schrdinger's third article from his 1926 series of papers presented his perturbation theory treatment of this effect's modification of the Balmer and Lyman series. Along with van der Waals broadening and resonance broadening, this effect can produce pressure broadening of spectral lines. In addition to the giant version and the AC or Autler-Townes form of this effect, it exhibits variants that are linear and quadratic in the applied field. FTP name this shifting and splitting of spectral lines due to an external electric field, the analogue of the Zeeman effect.
[A]: Science


[Q]: He stepped down as president of his country in 1985, but continued as head of the ruling party until 1990. His government emphasized a form of rural socialism known as ujamaa, and, in 1978, troops under his leadership entered Uganda, deposing Idi Amin. After his retirement he remained active in African politics, and was known throughout the continent as Mwalimu, Swahili for teacher. FTP, identify this first president of Tanzania, who died in October, 1999.
[A]: History


[Q]: This composer used the four-note motif E-C- D-sharp - C-sharp as the basis for his Piano Variations, and in another of his works the trumpet quotes the popular song "El Mosco. " He recast his Short Symphony as a much more popular sextet, and James Agee's Let Us Now Praise Famous Men inspired him to team up with librettist Horace Everett to write the opera The Tender Land. Besides the aforementioned El Salon Mexico, He only used 13 instruments in a ballet set in western Pennsylvania, and another of his works features a narrator speaking over the orchestra with the refrain "that is what he said. " For ten points, name this American composer of Lincoln Portrait and Appalachian Spring.
[A]:
Fine Arts