A database of library materials. An online library catalog is an electronic bibliographic database that describes the books, videotapes, periodicals, etc. carried by a particular library. The online library catalog evolved from a printed source, the library card catalog. Before the advent of online catalogs, library catalogs were pieces of furniture that contained numerous small drawers. In these drawers were contained the records of particular items in the library.
The number of Pima County homeless youth whose parents have been deported rose 50 percent in one year, a nonprofit advocacy group reports. There are more than 4,000 homeless youth in Pima County, and last year about 4 percent of them were children of deportees, twice as many as the previous year, according to Youth On Their Own officials. A story by Arizona Public Media. Read story.
POPULATION. Pima County, within which Tucson is located, was the nation's 68th largest county in 1990, 53rd largest in 2000, and 45th largest in 2005. From 1990 to 2000, the County ranked 27th greatest in absolute change.ucson was the 45th largest U.S. city in 1980, 34th largest in 1990, and 30th largest in 2000. Based on Census 2000, the April 1, 2000 population was 486,699 (see table below). Tucson currently covers 227.615 square miles. The estimated population for August 2008 is 557,262.