DATABASES & E-REFERENCE MATERIALS: D

The Dictionary of Synonyms in Japanese classifies the basic vocabulary of 25,000 words used in everyday life into 6,000 groups, showing common meanings, practical examples, and the correct usages of words. Words are shown in 1,700 synonym comparison tables and easy-to-understand differences in meanings and usages of words are indicated by the use of example sentences, compound word examples, and descriptions of the correct usages of words. English expressions matching the synonyms are also shown where appropriate.

International digital repository for the digital records of archaeological investigations. Registered users (registration is free) may download and bookmark resources.

The DNSA collection is the most comprehensive collection available of significant declassified U.S. government documents central to U.S. foreign and military policy since 1945. OU Libraries provides access to four sub-collections relating to Latin American policy and human rights, including El Salvador: The Making of U.S. Policy, 1977–1984; El Salvador: War, Peace, and Human Rights, 1980–1994; Nicaragua: The Making of U.S. Policy, 1978–1990; and Death Squads, Guerrilla War, Covert Operations, and Genocide: Guatemala and the U.S., 1954-1999.

Provides access to browse and freely download more than 6,300 eBook titles available on DPLA's Open Bookshelf. Includes classic novels, children's books, textbooks, and non-English titles.

Indexes U.S. doctoral dissertations completed at accredited institutions since 1861 (abstracts since 1980) and dissertations and theses, most with abstracts, from the U.K. and Ireland since 1716. This database includes some dissertations from Canada and Europe, as well as some master's theses and foreign language dissertations. Find most OU dissertations full text through summer 2013; after that date, find OU dissertations in SHAREOK. Most dissertations from other institutions, 1997 to present, are full text. To obtain pre-1997 dissertations, use the interlibrary loan request form.

Presents full-text literary criticism on the works of dramatists of all nations, cultures, and time periods. Critical essays are selected from leading sources, including published journals, magazines, books, reviews, radio transcripts, diaries, newspapers, broadsheets, pamphlets, and scholarly papers.