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Creator:: Chorzempa, Mary André, Sister
Abstract:: Chemical dosimetry developed in response to needs created by developments in the field of high-energy radiation. Shortly after the discovery of X-rays in 1895 and of radioactivity in 1896, the deleterious effects of ionizing radiation were recognized. To guard against the injurious effects of radiation in medical application, dose-measuring methods...
Resource Type:: Dissertation
Full Text:: in 1927 by the biophysicist Hugo Fricke (b. 1892). This renewed research on the chemical effects of

Creator:: Alexander, Gail Marie
Abstract:: A number of historians of science have been involved in studying the nature of biology at the turn of the century, and the picture that they have developed describes biology during this time as a field struggling to define itself. During the late nineteenth and early twentieth centuries, biologists were...
Resource Type:: Masters Thesis
Full Text:: Charles Otis Whitman (1842-1910), the first director of the MBL and the coordinator of the MBL lectures

Creator:: Zernel, John Joseph, 1945-
Abstract:: John Wesley Powell worked actively for public land system reform while a director of geographical and geological surveys in the West from 1869 to 1894. Although this has won him acclaim as a conservationist, the basis of Powell's linkage of reform with scientific work is poorly understood. A study of...
Resource Type:: Dissertation
Full Text:: C. C. Parry; zoologists Charles Girard and Spencer Baird; and geologists Jules Marcou, John Strong

Creator:: Gross, Richard Eugene
Abstract:: The objective of this study was to determine the relative speeds of available medical x-ray films exposed directly to x-rays and exposed in combination with various types of intensifying screens. The information obtained from this sensitometric data was used to obtain factors by which a radiographic exposure technique with one...
Resource Type:: Masters Thesis
Full Text:: became a useable instrument (Fuchs, 1964). In the first century B. C. Vitruvius, a celebrated Roman

Creator:: Benson, Keith Rodney
Abstract:: The major historical studies that have examined American biology have emphasized the development of experimental biology at the end of the nineteenth century. In this characterization, the descriptive branch of biology has often been treated as less than important and, in several cases, as a hindrance in the application of...
Resource Type:: Dissertation
Full Text:: I received at several libraries. I would like to express my thanks to M. C. Beecheno in the

Creator:: Dedrick, Millridge Cornelius
Resource Type:: Dissertation
Full Text:: , different areas of partially exposed intact urchin. Region A is in the exposure field while Regions B and C

Creator:: Lester, Jacob Franklin
Abstract:: Modern science was produced by a Christian society, and although science has had an effect on Christianity, it could not itself remain unaffected. In the second half of the nineteenth century, the subject of evolution was as much a religious as a scientific issue. The battle line was drawn and...
Resource Type:: Dissertation
Full Text:: European level. Hazard 8See Oliver W. Larkin, Samuel F. B. Morse and American Democratic Art (Boston

Creator:: Rymon, Larry Maring
Abstract:: This analysis is the study of Oregon's wildlife resources from the period prior to white settlement up to the present time, including critical projections, based on present trends and expected conditions for both human and wildlife populations in the state up to the year 2010. Prior to white settlement Oregon...
Resource Type:: Dissertation
Full Text:: cience Redacted for Privacy Dean of Graduate School Date thesis is presented 10/vtu,c 0(09 Typed by

Creator:: McGraw, Donald J.
Abstract:: An examination of the technical and historical literature concerning the discovery and development of antibiotics suggests the possible existence of an era of discovery. This era appears to have a well-defined beginning (about 1940) and a well-defined close (about 1960). It is the purpose of this dissertation to examine the...
Resource Type:: Dissertation
Full Text:: this history the term as first defined by S.A. Waksman (b. 1881) will be utilized. His definition is

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