Index Catalog // ScholarsArchive@OSU

Bacteria die-off in stream sediments

Creator:: Sherer, Brett Micheal
Abstract:: The purpose of this study was to evaluate the impact sediment has on the survival of bacteria in a typical rangeland stream. This information is an important component in determining a time integrated prediction of bacterial numbers in the stream sediment and overlying water. Bacterial survival in stream is a...
Resource Type:: Masters Thesis
Full Text:: . Sediment samples were combined by weight with fresh bovine feces at 250:1, 20:1, and 6.67:1 ratios

Elucidating low-frequency vibrational dynamics in calcite and water with time-resolved third-harmonic generation spectroscopy

Creator:: Wang, Liang, Liu, Weimin, and Fang, Chong
Abstract:: Low-frequency vibrations are foundational for material properties including thermal conductivity and chemical reactivity. To resolve the intrinsic molecular conformational dynamics in condensed phase, we implement time-resolved third-harmonic generation (TRTHG) spectroscopy to unravel collective skeletal motions in calcite, water, and aqueous salt solution in situ. The lifetime of three Raman-active modes...
Resource Type:: Article

Excited State Structural Events of a Dual-Emission Fluorescent Protein Biosensor for Ca²⁺ Imaging Studied by Femtosecond Stimulated Raman Spectroscopy

Creator:: Wang, Yanli, Tang, Longteng, Liu, Weimin, Zhao, Yongxin, Oscar, Breland G., Campbell, Robert E., and Fang, Chong
Abstract:: Fluorescent proteins (FPs) are luminescent biomolecules that emit characteristic hues upon irradiation. A group of calmodulin (CaM)-green FP (GFP) chimeras have been previously engineered to enable the optical detection of calcium ions (Ca²⁺). We investigate one of these genetically encoded Ca²⁺ biosensors for optical imaging (GECOs), GEM-GECO1, which fluoresces green...
Resource Type:: Article
Full Text:: with a <250 fs time constant. Upon Ca2+ binding, the chromophore adopts a more twisted conformation

Biological assessment of the effects of national forest land and resource management plans and Bureau of Land Management land use plans on Canada lynx

Creator:: Hickenbottom, J. Randal, Summerfield, Bob, Aradahl, Jeff, Halekas, George, Hilliard, Mark, Jackson, Lynn, Prevedel, David, and Rupe, John
Abstract:: This biological assessment (BA) documents the potential effects of existing Forest Service (FS) Land and Resource Management Plans (LRMPs), or 'Forest Plans' and Bureau of Land Management (BLM) Land Use Plans (LUPs) on the Canada Lynx (Lynx canadensis), hereafter referred to as the lynx. LRMPs and LUPs are collectively referred...
Resource Type:: Technical Report
Full Text:: and Wildlife Service 1998a). Informal conferencing among FWS and USDA Forest Service (FS) and USDI

Shear instabilities of the mean longshore current : 1. theory

Creator:: Bowen, A. J. and Holman, Robert A.
Abstract:: A new class of nearshore waves based on the shear instability of a steady longshore current is discussed. The dynamics depend on the conservation of potential vorticity but with the background vorticity field, traditionally the role of Coriolis in larger scale flows, supplied by the shear structure of the longshore...
Resource Type:: Article
Full Text:: is fs, the shear of the seaward face of the longshore current. While the instability can span a

Probing structural evolution along multidimensional reaction coordinates with femtosecond stimulated Raman spectroscopy

Creator:: Frontiera, Renee R., Fang, Chong, Dasgupta, Jyotishman, and Mathies, Richard A.
Abstract:: Mapping out multidimensional potential energy surfaces has been a goal of physical chemistry for decades in the quest to both predict and control chemical reactivity. Recently a new spectroscopic approach called Femtosecond Stimulated Raman Spectroscopy or FSRS was introduced that can structurally interrogate multiple dimensions of a reactive potential energy...
Resource Type:: Article
Full Text:: (~50 fs) and spectral (~8 cm-1) resolution, thus enabling one to follow reactive structural

A guide to forest-tree collections of known source of parentage in the western United States and Canada : results of a preliminary survey

Creator:: Stettler, R. F. (Reinhard Friedrich), 1929-, Cummings, J. C., and U.S. International Biological Program. Coniferous Forest Biome
Abstract:: This publication reports the results of a preliminary survey listing 527 forest-tree plantations in the western United States and Canada. Of these, 250 involve families of known parentage, 131 provenance-test material, 87 clonal material, and 59 interspecific hybrids. The report is intended (1) to serve forest researchers in locating genetic...
Resource Type:: Technical Report
Full Text:: -2 Simpson Coop. 40°58'/123°57' 380 Humboldt 66-67 8/8 SF,FS,OP Russell 37°55'/122°08' 250 Contra

Comparative genetic structure of two mangrove species in Caribbean and Pacific estuaries of Panama

Creator:: Ceron-Souza, Ivania, Bermingham, Eldredge, McMillan, William Owen, and Jones, Frank Andrew
Abstract:: Background: Mangroves are ecologically important and highly threatened forest communities. Observational and genetic evidence has confirmed the long distance dispersal capacity of water-dispersed mangrove seeds, but less is known about the relative importance of pollen vs. seed gene flow in connecting populations. We analyzed 980 Avicennia germinans for 11 microsatellite...
Resource Type:: Article

Energy exchange studies at the earth's surface. II. Energy budget of a pumice desert

Creator:: Holbo, Harold Richard
Abstract:: The energy budget of a pumice desert surface was analyzed under clear skies during early, mid-and late summer periods. The pumice site is in the semi-arid plateau region of Central Oregon at an elevation of about 1500 meters. The flat pumice surface is approximately 250 hectares in extent, and is...
Resource Type:: Technical Report
Full Text:: Range Experiment Station under Cooperative Agreement Supplement No. 58, FS-PNW- 1203. The data

An experimental investigation of transition pool boiling

Creator:: Aoki, Tadao
Abstract:: The heat-transfer phenomena studied in this work were associated with pool boiling from a flat horizontal surface facing upward with the bulk liquid at its saturation temperature. The analysis of boiling sound and the investigation of the transition boiling mechanism constituted the essence of the present study. The distinctively large...
Resource Type:: Dissertation
Full Text:: present study. The distinctively large sound intensity with predominant fre- quency components of 250 Hz

ScholarsArchive@OSU

Bacteria die-off in stream sediments

Elucidating low-frequency vibrational dynamics in calcite and water with time-resolved third-harmonic generation spectroscopy

Excited State Structural Events of a Dual-Emission Fluorescent Protein Biosensor for Ca²⁺ Imaging Studied by Femtosecond Stimulated Raman Spectroscopy

Biological assessment of the effects of national forest land and resource management plans and Bureau of Land Management land use plans on Canada lynx

Shear instabilities of the mean longshore current : 1. theory

Probing structural evolution along multidimensional reaction coordinates with femtosecond stimulated Raman spectroscopy

A guide to forest-tree collections of known source of parentage in the western United States and Canada : results of a preliminary survey

Comparative genetic structure of two mangrove species in Caribbean and Pacific estuaries of Panama

Energy exchange studies at the earth's surface. II. Energy budget of a pumice desert

An experimental investigation of transition pool boiling

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