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William Keith Brooks (1848-1908) : a case study in morphology and the development of American biology

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:: William Keith Brooks (1848-1908) : a case study in

John Turberville Needham (1713-1781) and eighteenth century theories of generation

Creator:: Benson, Keith Rodney
Abstract:: There were two viable theories of generation, preformation and epigenesis, existing in the Seventeenth and Eighteenth Centuries. Due to their irreconcilable nature, they were often at loggerheads during this time interval. The status of these generation theories can be effectively understood in terms of Thomas Kuhn's conception of preparadigm science....
Resource Type:: Masters Thesis
Full Text:: Keith Rodney Benson ACKNOWLEDGEMENTS Primarily, I am very grateful to Paul L. Farber for his

Oxygen consumption by Dendroctonus pseudotsugae Hopkins

Creator:: King, Keith Irl
Abstract:: Oxygen uptakes of Douglas-fir beetles collected during November 1969 through April 1970 were measured at different experimental temperatures. The oxygen uptakes of adult beetles increased at each experimental temperature as the seasons progressed from winter to spring. The larval and pupal Douglas-fir beetles, collected in February 1970, had lower oxygen...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF KEITH IRL KING (Name) in

The marine biological station of San Diego : its development as related to the ideas and ideals of William Emerson Ritter (1856-1944)

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:: Oceanography, and Keith Benson, of the University of Washington, for directing me to much of the material

Uptake and retention of technetuim [i.e. technetium] by two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula

Creator:: McKenzie-Carter, Michael A.
Abstract:: The patterns of uptake, retention, and tissue distribution of ⁹⁵mTc in two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula have been investigated. The animals were chronically exposed in water to which sodium pertechnetate had been added. Final whole-body concentration ratios (CR) obtained were 1.6 and 41...
Resource Type:: Masters Thesis
Full Text:: approved: Dr. David L. Willis The patterns of uptake, retention, and tissue distribution of 95mTc in two

Benthic macroinvertebrates and sediment characteristics of a coastal dune margin lake (Carter Lake, Douglas County, Oregon)

Creator:: Wones, Andrew G.
Abstract:: Carter Lake, a freshwater, coastal dune-margin lake, was sampled at the beginning and end of the summer of 1986 to determine the sediment characteristics and benthic macroinvertebrate abundance, biomass, variety, and diversity. The distributions of major benthic habitats were estimated by snorkeling in June and July, 1986. Water temperature and...
Resource Type:: Masters Thesis
Full Text:: , Douglas County, Oregon ) Redacted for Privacy Abstract approved: d v Gary L. Larson Carter Lake, a

Reproductive cycle of the male newt Taricha granulosa : exogenous and endogenous regulation of plasma androgens

Creator:: Specker, Jennifer Lee
Abstract:: During a 13-month period starting in October of 1976, adult male rough-skinned newts (Taricha granulosa) were collected periodically to study seasonal changes in reproductive status. Plasma androgen concentration, measured by radioimmunoassay, is elevated during autumn and spring (about 50 ng/ml). Winter and summer levels are considerably lower (less than 10...
Resource Type:: Masters Thesis
Full Text:: REGULATION OF PLASMA ANDROGENS Abstract approved: Redacted for Privacy Frank L. Moore During a 13-month

Effects of fractionated radiation doses on survival times of the newt (Taricha granulosa)

Creator:: Campbell, Carol Lee
Abstract:: This was a study designed to determine the occurrence of recovery from radiation damage in Taricha granulosa. Irradiation with either gamma or x-ray sources in the range of 96-10,000 rads was given. (The mean or median survival times were determined.) Doses were fractionated and the survival times for the same...
Resource Type:: Masters Thesis
Full Text:: for Privacy Dr. David L. Willis This was a study designed to determine the occurrence of recovery

A study of the excited states of ³⁰P using the reaction ²⁹Si(p,γ)³⁰P

Creator:: Malik, Arthur John
Resource Type:: Dissertation
Full Text:: Illa W. Atwood for Arthur John Malik ACKNOWLEDGMENT I wish to express my gratitude to Dr. L. Wayne

Some possible roles for selenium in the reproductive physiology of the male graytailed vole (Microtus canicaudus)

Creator:: Whitfield, Stephen Curtiss
Abstract:: The testes of the gray-tailed vole (Microtus canicaudus Miller) exhibited a high affinity for selenium relative to other selected tissues. Uptake of selenium-75 in the testis-epididymis complex was delayed relative to uptake by the whole body, kidney, and liver. This pattern of uptake suggested that selenium was metabolically incorporated into...
Resource Type:: Masters Thesis
Full Text:: Larry G.Foislund Redacted for privacy David L. Willis The testes of the gray-tailed vole (Microtus

ScholarsArchive@OSU

William Keith Brooks (1848-1908) : a case study in morphology and the development of American biology

John Turberville Needham (1713-1781) and eighteenth century theories of generation

Oxygen consumption by Dendroctonus pseudotsugae Hopkins

The marine biological station of San Diego : its development as related to the ideas and ideals of William Emerson Ritter (1856-1944)

Uptake and retention of technetuim [i.e. technetium] by two freshwater species, the crayfish Pacifastacus leniusculus and the snail Juga silicula

Benthic macroinvertebrates and sediment characteristics of a coastal dune margin lake (Carter Lake, Douglas County, Oregon)

Reproductive cycle of the male newt Taricha granulosa : exogenous and endogenous regulation of plasma androgens

Effects of fractionated radiation doses on survival times of the newt (Taricha granulosa)

A study of the excited states of ³⁰P using the reaction ²⁹Si(p,γ)³⁰P

Some possible roles for selenium in the reproductive physiology of the male graytailed vole (Microtus canicaudus)

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