Index Catalog // ScholarsArchive@OSU

Semi-volatile organic compounds and developing organisms : accumulation in California mountain tadpoles in the field and fish embryo exposures in the laboratory

Creator:: Stanley, Kerri A.
Abstract:: The atmospheric transport and deposition of semi-volatile organic compounds (SOCs), including current and historic use pesticides, polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs), to mountain ecosystems may result in the exposure of tadpoles to these SOCs. This exposure has been implicated in amphibian population declines in California. Tadpoles encounter...
Resource Type:: Dissertation
Full Text:: RJ. 1975. Tetrapod Gait Patterns. Science 188:1256-1258. [36] Bradford DF. 1983. Winterkill, oxygen

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

Creator:: Liu, Mingyang
Abstract:: Italian ryegrass (Lolium perenne spp. multiflorum) is a common weed management problem in turfgrasses, cereals and non-crop areas in the United States. In Oregon, the number of populations with multiple-resistance continues to increase. To manage these resistant populations, the resistance patterns must be determined. In this study, five Italian ryegrass...
Resource Type:: Masters Thesis

The physiological effect of posture on cycling

Creator:: al-Haboubi, Muhammad
Abstract:: The objective of this research was to investigate the physiological effects of body posture on cycling. The familiar positions of bicycle riding have been the touring posture (hands stretched on top handlebar) and the racing posture (hands bent at the elbow, with the back horizontal). However, a relatively new stance...
Resource Type:: Dissertation

Response of marine stratus to successive polluting events by ships

Creator:: Sechrist, B.
Abstract:: Ship tracks have proven to be an ideal laboratory for studying the response of marine stratocumulus to an increase in aerosol pollution. Here the response of already polluted marine stratocumulus to further pollution was examined by studying the clouds where two ship tracks cross. 78 crossings of ship tracks were...
Resource Type:: Masters Thesis
Full Text:: FI G U R E 2. 3. A ve ra ge d ro pl et e ff ec tiv e ra di us fo r 5 -p ix el a

Aryl acetylene substituent effects : the synthesis and application of biaryls

Creator:: Naffziger, Michael R.
Abstract:: The work described herein details the synthesis and application of biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents on the aryl ring of the terminal acetylenic carbon. From this work, we successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps from inexpensive commercially...
Resource Type:: Masters Thesis

Independent effects of habitat loss and fragmentation on pollination : tropical forest fragmentation alters hummingbird movements and pollination dynamics

Creator:: Hadley, Adam S.
Abstract:: A growing body of work reveals that animal-mediated pollination is negatively affected by anthropogenic disturbance. Landscape-scale disturbance results in two often inter-related processes: (1) habitat loss, and (2) disruptions of habitat configuration (i.e. fragmentation). Understanding the relative effects of such processes is critical in designing effective management strategies to limit...
Resource Type:: Dissertation

Determination of unsaturation-, growth phase-, and growth rate-dependent hydrogen isotopic fractionation in C₃₇ alkenones produced by Emiliania huxleyi

Creator:: Wolhowe, Matthew D.
Abstract:: Recent works have investigated use of the hydrogen isotopic composition of C₃₇ alkenones (δD[subscript K37s]), lipid biomarkers of certain haptophyte microalgae, as an independent paleosalinity proxy. I discuss herein the factors impeding such an application and identify the potential alternative use of δD[subscript K37s] measurements as a proxy for non-thermal,...
Resource Type:: Masters Thesis
Full Text:: ). 5 Ta bl e 1. S el ec te d R es ul ts fr om C ur re nt S tu di es o f α K 37

Investigation of unique marine environments for microbial natural products

Creator:: Thornburg, Christopher C.
Abstract:: Metagenomics has revealed that the marine microbial biosphere is immensely more diverse than originally considered, and is an almost untapped reservoir for the potential discovery of microbial natural products. Despite numerous advances in culturing, biosynthetic engineering and genomic-based screening efforts to uncover much of this diversity in relatively accessible environments,...
Resource Type:: Dissertation
Full Text:: ..........(FDA), European Commission (EC) or in various stages of clinical trial. 6 Figure 1.3. Examples of

Herbage and Sheep Production from Simple, Diverse, and Legume Pastures Established in an Agrivoltaic Production System

Creator:: Andrew, Alyssa C., Higgins, Chad W., Smallman, Mary A., Prado-Tarango, David E., Rosati, Adolfo, Ghajar, Shayan, Graham, Maggie, and Ates, Serkan
Abstract:: Agrivoltaic systems combine solar energy and agriculture, promoting dual land use. Although grazing sheep in these systems is common, research on intentionally designed pastures to increase production is lacking. This study seeks to compare the herbage growth and lamb production in simple, diverse, and legume pastures in an agrivoltaic system...
Resource Type:: Article
Full Text:: areas for a total of nine sensors. A combination of 5TM, EC-5, and GS3 (Decagon Devices, Inc., 136

Stand structures of Oregon white oak (Quercus garryana) woodlands and their relationships to the environment in southwestern Oregon

Creator:: Gilligan, Laurie A.
Abstract:: Large areas of non-coniferous communities in southwestern Oregon are thinned to reduce fire hazard and accomplish ecosystem restoration, under the assumption that current fuel loads are unnaturally high. Although Oregon white oak (Quercus garryana) woodlands are a characteristic landscape component in this region, little is known about their current or...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Semi-volatile organic compounds and developing organisms : accumulation in California mountain tadpoles in the field and fish embryo exposures in the laboratory

Multiple-resistant Italian ryegrass (Lolium perenne spp. multiflorum) populations in Oregon

The physiological effect of posture on cycling

Response of marine stratus to successive polluting events by ships

Aryl acetylene substituent effects : the synthesis and application of biaryls

Independent effects of habitat loss and fragmentation on pollination : tropical forest fragmentation alters hummingbird movements and pollination dynamics

Determination of unsaturation-, growth phase-, and growth rate-dependent hydrogen isotopic fractionation in C₃₇ alkenones produced by Emiliania huxleyi

Investigation of unique marine environments for microbial natural products

Herbage and Sheep Production from Simple, Diverse, and Legume Pastures Established in an Agrivoltaic Production System

Stand structures of Oregon white oak (Quercus garryana) woodlands and their relationships to the environment in southwestern Oregon

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