Index Catalog // ScholarsArchive@OSU

Epidermal tumors on juvenile English sole (Parophrys vetulus) from Yaquina Bay, Oregon

Creator:: Koike, Bruce Gary
Abstract:: Juvenile English sole (Parophrys vetulus) were collected in Yaquina Bay, Oregon from January, 1986 to March, 1987. Recruitment of young-of-the-year sole occurred from January to June, 1986 and again from December, 1986 to February, 1987. Emigration from Yaquina Bay started in September, 1986, but a small portion of the English...
Resource Type:: Masters Thesis

The morphology and ecology of Echinorhynchus lageniformis Ekbaum, 1938 (Acanthocephala)

Creator:: Barnes, James R.
Abstract:: The acanthocephalan Echinorhynchus lageniformis Ekbaum, 1938, is a common intestinal parasite of the starry flounder, Platichthys stellatus (Pallas), of Yaquina Bay, Lincoln Co., Oregon. Three hundred and sixty-one flounders were examined and 146 (40.5 percent) were found to harbor infections of E. lageniformis. Cystacanths of E. lageniformis were found encysted...
Resource Type:: Masters Thesis
Full Text:: - morphus minutus necessary to cause symptoms of disease in the host birds may be in the hundreds. Prakash

Transmission of disseminated neoplasia in the soft shell clam, Mya arenaria

Creator:: House, Marcia
Abstract:: Disseminated neoplasia (DN) is a proliferative cell disorder that occurs in the circulatory system of bivalves. The condition is progressive and lethal. At least 15 species of bivalves over a wide range of geographic locations have been reported to contract DN. Prevalence levels of disseminated neoplasia can reach up to...
Resource Type:: Dissertation
Full Text:: that the lack of DN in these west coast populations of soft shell clams was not due to disease

Epidemiology of stripe rust of wheat, 1961-1968

Creator:: Shaner, Gregory Ellis, 1942- and Powelson, R. L.
Abstract:: Published December 1971. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Epidemiology of Stripe Rust of Wheat, 1961-1968 Agricultural Experiment Station Oregon State University

The epidemiology of fractures among adults with severe mental retardation residing in a state developmental center

Creator:: Downs, Steve B.
Abstract:: This retrospective study investigated the incidence, characteristics, and risk factors of bone fracture among a group of 518 adults with severe mental retardation between 25 and 75 years old. Data were collected from a large state developmental center in the Western United States between April 1, 1991 and March 31,...
Resource Type:: Dissertation
Full Text:: The epidemiology of fractures among adults with severe mental

Epidemiology of grape powdery mildew, Uncinula necator, in the Willamette Valley

Creator:: Hall, Tyrone W.
Abstract:: An important disease of Vitis vinifera production in Oregon and all other commercial growing regions is powdery mildew of grape, caused by the obligate fungal pathogen Uncinula necator (Schwein.) Burril. Grape production can be characterized as a long-term investment in the establishment and maintenance of the vineyard. Establishment times have...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Botany and Plant Pathology presented on February 07,2000. Title: Epidemiology of

The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

Creator:: Farber, Daniel
Abstract:: Wheat stripe rust (WSR), also called yellow rust of wheat (Tricitum spp.), causal agent Puccinia striiformis f.sp. tritici (Pst), is a foliar disease of major economic importance on wheat, especially grown in temperate locations. WSR causes major losses of wheat yield, estimated at nearly $ 1 billion per year, and...
Resource Type:: Dissertation
Full Text:: spread of WSR, bridging theoretical dispersal and disease ecology with plant epidemiology to provide

Epidemiological implications of sporozoite aggregation in malaria vectors

Creator:: Li, Xiaohong, 1963-
Abstract:: This study describes and quantifies some microprocesses of malaria transmission including blood vessel location by Anopheles stephensi and sporozoites delivery of An. stephensi infected by Plasmodium berghei. The study models the effects of malaria parasite-induced changes in probing behavior and mosquito mortality on disease transmisson. Finally, host, vector, and parasitological...
Resource Type:: Dissertation
Full Text:: disease transmisson. Finally, host, vector, and parasitological aspects of malaria optimal control are

Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Creator:: Manore, Carrie Anna
Abstract:: Modeling and analyzing the combined effects of disease and population dynamics is important in understanding the effects of mechanisms such as pathogen transmission and direct competition between host species on the distribution and abundance of different species in an ecological community. Mathematical analysis of such models in a spatially explicit...
Resource Type:: Dissertation
Full Text:: competition and disease quickly becomes complicated. 2.3 Mathematical Epidemiology The types of disease

Epidemiological study of low back pain : association with socio-demographic and occupational factors

Creator:: Adera, Tilahun
Abstract:: Low back pain (LBP) is a major-health and economic problem with uncertain etiology, and no known effective means of prevention and control. Data for this investigation were obtained from the second National Health and Nutrition Examination Survey (NHANES II) conducted by the National Center for Health Statistics. The NHANES II...
Resource Type:: Dissertation
Full Text:: Department of Epidemiology, University of Washington. Many thanks to Dr Michael Maksud, Dean of Health and

ScholarsArchive@OSU

Epidermal tumors on juvenile English sole (Parophrys vetulus) from Yaquina Bay, Oregon

The morphology and ecology of Echinorhynchus lageniformis Ekbaum, 1938 (Acanthocephala)

Transmission of disseminated neoplasia in the soft shell clam, Mya arenaria

Epidemiology of stripe rust of wheat, 1961-1968

The epidemiology of fractures among adults with severe mental retardation residing in a state developmental center

Epidemiology of grape powdery mildew, Uncinula necator, in the Willamette Valley

The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

Epidemiological implications of sporozoite aggregation in malaria vectors

Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Epidemiological study of low back pain : association with socio-demographic and occupational factors

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