He served in that capacity for five years and started the Minnesota State Survey and the Twin Cities Area Survey, both of which are still conducted annually by the Center, which is a unit of the University of Minnesota.
32.
The survey, " Bauchi Area Survey Report " and published in 1972, listed the names, location and population of twenty four Chadic languages, which are very closely related to each other and are spoken to the south and west of Bauchi.
33.
Hanszen often hosts guest lecturers; recent visitors include College World Series champion Coach Wayne Graham, former Rice president and renowned economist S . Malcolm Gillis, director of the Houston Area Survey Stephen Kleinberg, and senior editor of Texas Monthly and Hanszen alumnus ('63 ) Paul Burka.
34.
However, a reanalysis of data from the National Epidemiological Catchment Area survey in the United States suggested that 0.8 percent of the population experience a manic episode at least once ( the diagnostic threshold for bipolar I ) and a further 0.5 percent have a hypomanic episode ( the diagnostic threshold for bipolar II or cyclothymia ).
