Textbooks as Topic: Books used in the study of a subject that contain a systematic presentation of the principles and vocabulary of a subject.TextbooksLibraries, Digital: Libraries in which a major proportion of the resources are available in machine-readable format, rather than on paper or MICROFORM.BooksPhysiology: The biological science concerned with the life-supporting properties, functions, and processes of living organisms or their parts.Anatomy: A branch of biology dealing with the structure of organisms.Educational Technology: Systematic identification, development, organization, or utilization of educational resources and the management of these processes. It is occasionally used also in a more limited sense to describe the use of equipment-oriented techniques or audiovisual aids in educational settings. (Thesaurus of ERIC Descriptors, December 1993, p132)PrintingHistory, 19th Century: Time period from 1801 through 1900 of the common era.History, 18th Century: Time period from 1701 through 1800 of the common era.Medical Illustration: The field which deals with illustrative clarification of biomedical concepts, as in the use of diagrams and drawings. The illustration may be produced by hand, photography, computer, or other electronic or mechanical methods.Online Systems: Systems where the input data enter the computer directly from the point of origin (usually a terminal or workstation) and/or in which output data are transmitted directly to that terminal point of origin. (Sippl, Computer Dictionary, 4th ed)History, 20th Century: Time period from 1901 through 2000 of the common era.Education, Medical: Use for general articles concerning medical education.Computer-Assisted Instruction: A self-learning technique, usually online, involving interaction of the student with programmed instructional materials.History, 15th Century: Time period from 1401 through 1500 of the common era.CD-ROM: An optical disk storage system for computers on which data can be read or from which data can be retrieved but not entered or modified. A CD-ROM unit is almost identical to the compact disk playback device for home use.History, 16th Century: Time period from 1501 through 1600 of the common era.Reference Books, Medical: Books in the field of medicine intended primarily for consultation.History, 17th Century: Time period from 1601 through 1700 of the common era.Programmed Instruction as Topic: Instruction in which learners progress at their own rate using workbooks, textbooks, or electromechanical devices that provide information in discrete steps, test learning at each step, and provide immediate feedback about achievement. (ERIC, Thesaurus of ERIC Descriptors, 1996).Science: The study of natural phenomena by observation, measurement, and experimentation.History, Medieval: The period of history from the year 500 through 1450 of the common era.Teaching: The educational process of instructing.LouisianaBiology: One of the BIOLOGICAL SCIENCE DISCIPLINES concerned with the origin, structure, development, growth, function, genetics, and reproduction of animals, plants, and microorganisms.Education, Medical, Undergraduate: The period of medical education in a medical school. In the United States it follows the baccalaureate degree and precedes the granting of the M.D.