Index Catalog // ScholarsArchive@OSU

Investigation of Nematocyst Discharge in Parasitic Cnidarians (Myxozoa)

Creator:: Americus, Benjamin E.
Abstract:: Myxozoans are an enigmatic group of obligately parasitic, microscopic cnidarians. They diverged from their free-living relatives over 600 million years ago and have highly reduced genomes. However, they have retained nematocyst stinging cells which characterize the phylum Cnidaria. Free-living cnidarians utilize this cellular weaponry for defense and predation whereas the...
Resource Type:: Masters Thesis
Full Text:: troubleshooting. I am indebted to the staff at the John L. Fryer Aquatic Animal Health Laboratory and my lab

Development and Application of a Reduced Chemical Kinetics Model for Low-Speed Pre-Ignition Investigation

Creator:: Tran, Khang NV.
Abstract:: Gasoline direct injection engines, with downsized boosted technology, present a promising option for enhancing power density and reducing fuel consumption for next-generation engine designs to meet stringent fuel economy and emission standards. However, these developments in the low-speed and high-load operating regime are challenged by the occurrence of a new...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Christopher L. Hagen Kyle E. Niemeyer Gasoline direct injection engines, with downsized

Bioenergetic evaluation of diel vertical migration by bull trout

Creator:: Eckmann, Madeleine
Abstract:: I evaluated hypotheses related to growth as a driver of depth use and diel vertical migration by bull trout (Salvelinus confluentus) in a thermally stratified reservoir. I applied a bioenergetic model to evaluate growth of bull trout in relation to potential patterns of diel depth use by bull trout in...
Resource Type:: Masters Thesis
Full Text:: bull trout (G = g·g-1·d-1) as consumption (C = g·g-1·d-1 of prey, wet weight) minus respiration (R

Communicating oceanographic research through film : the role of film in helping scientists develop and meet their broader impacts goals

Creator:: Madlener, Saskia D.
Abstract:: Funding agencies, specifically the National Science Foundation (NSF), are placing particular emphasis on the societal relevance and broader applications of scientific research, otherwise known as Broader Impacts (BIs). Scientists are required to address the BIs merit review criterion in their research proposals or they will not get funded. However, many...
Resource Type:: Masters Thesis
Full Text:: oceanographers as they both prepare for and conduct their research aboard the R/V Sanna in western Greenland in

Elevational differences in UV-B response by the long-toed salamander (Ambystoma macrodactylum)

Creator:: Thurman, Lindsey L.
Abstract:: Global amphibian declines have been attributed to numerous and often synergistic causes, such as invasive species, pathogens, and ultraviolet-B (UV-B) radiation. The effects of these stressors are context dependent and can vary with location, species, and populations. As sensitivity to UV-B has shown inconsistencies across amphibian taxa, it can be...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Lindsey L. Thurman for

Meeting of the magmas : the evolutionary history of the Kalama Eruptive Period, Mount St. Helens, Washington

Creator:: Lieuallen, Athena Erin
Abstract:: Comprehension of eruptive histories is critical in understanding the evolution of magmatic systems at arc volcanoes and may supply evidence to the petrogenesis of intermediate and evolved magmas. Within the 300 ka eruptive history of Mount St. Helens, Washington, the Kalama Eruptive Period, 1479- ~1750 CE was bracketed by interludes...
Resource Type:: Masters Thesis
Full Text:: Page 5.10 Photomicrograph of X lahar 02 (B-type) lava……………………. 53 5.11 Images of population L

Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest

Creator:: Zatkos, Lauren E.
Abstract:: The structure of food webs and how they relate to community stability has been an important debate in ecology. Specifically, predictability of web shape and how it influenced by surrounding landscapes is one of the main goals of such discussions. Headwater streams provide a study template that is of interest...
Resource Type:: Masters Thesis
Full Text:: employed by multiple labs. I used package Cheddar (Hudson 2012) in program R (version 0.1-633) to

Silicon Photomultiplier Modeling of CsI(Tl) with Front End Electronics using a Monte Carlo Model

Creator:: McGee, Kacey D.
Abstract:: Silicon photomultipliers (SiPM) have become increasingly popular in radiation detection design due to smaller profiles, lower operating voltage, and magnetic insensitivity. However, there are nonlinear effects that make modeling SiPM challenging. This study looks at using a Monte Carlo approach to modeling the output of an SiPM and front end...
Resource Type:: Masters Thesis

Identifying Threshold Values of Accelerometer-Determined Moderate-to-Vigorous Physical Activity that Correspond to Self-Reported Compliance to the 2008 Physical Activity Guidelines for Americans : National Health and Nutrition Examination Survey 2003-2006

Creator:: Brier, Julie A.
Abstract:: Current public health guidelines for physical activity (PA) were primarily formulated using evidence collected from a series of prospective cohort epidemiological investigations that measured self-reported PA. In light of this observation, and the known discordance between self-reported and objectively-monitored PA, it remains common for researchers to assess compliance to current...
Resource Type:: Masters Thesis
Full Text:: precise estimates (i.e., Weir equation: 3.9 * L O2 consumed + 1.1 * L CO2 produced; Weir, 1949

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

Creator:: Roon, Sean Robert
Abstract:: Wild fish populations are typically infected with a variety of micro- and macroparasites that may affect fitness and survival, however, there is little published information on parasite distribution in wild juvenile salmonids in three upper tributaries of the Willamette River, OR. The objectives of this survey were to document (1)...
Resource Type:: Masters Thesis
Full Text:: , 556–564. Bandilla M., Valtonen E.T., Suomalainen L.-R., Aphalo P.J. & Hakalahti T. (2006) A link

ScholarsArchive@OSU

Investigation of Nematocyst Discharge in Parasitic Cnidarians (Myxozoa)

Development and Application of a Reduced Chemical Kinetics Model for Low-Speed Pre-Ignition Investigation

Bioenergetic evaluation of diel vertical migration by bull trout

Communicating oceanographic research through film : the role of film in helping scientists develop and meet their broader impacts goals

Elevational differences in UV-B response by the long-toed salamander (Ambystoma macrodactylum)

Meeting of the magmas : the evolutionary history of the Kalama Eruptive Period, Mount St. Helens, Washington

Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest

Silicon Photomultiplier Modeling of CsI(Tl) with Front End Electronics using a Monte Carlo Model

Identifying Threshold Values of Accelerometer-Determined Moderate-to-Vigorous Physical Activity that Correspond to Self-Reported Compliance to the 2008 Physical Activity Guidelines for Americans : National Health and Nutrition Examination Survey 2003-2006

Distribution and coinfection of microparasites and macroparasites in juvenile salmonids in three upper Willamette River tributaries

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