Index Catalog // ScholarsArchive@OSU

Water vapor transport in the vicinity of imbibing saline plumes: Homogeneous and layered unsaturated porous media

Creator:: Weisbrod, Noam, Niemet, Michael R., McGinnis, Thomas, and Selker, John S.
Abstract:: Water vapor transport in the vicinity of imbibing saline solutions was investigated in two-dimensional (2-D) chambers using a light transmission technique. Concentrated NaNO3 solutions (brines) were applied as point sources to the surface of homogenous packs of prewetted silica sand for four different sand grades. The same solutions were applied...
Resource Type:: Article
Full Text:: Research Institutes, Ben-Gurion University of the Negev, Sede-Boqer Campus, Israel Michael R. Niemet,1

Relationships between gas-liquid interfacial surface area, liquid saturation, and light transmission in variably saturated porous media

Creator:: Niemet, Michael R., Rockhold, Mark L., Weisbrod, Noam, and Selker, John S.
Abstract:: Liquid saturation and gas-liquid interfacial area are important parameters for evaluating the transport and fate of contaminants in unsaturated subsurface environments. Recent findings indicate that interfacial surface area controls the relative degree of transmitted light in laboratory systems containing translucent porous media. Equations are derived to estimate the specific gas-liquid...
Resource Type:: Article
Full Text:: saturated porous media Michael R. Niemet,1,2 Mark L. Rockhold,1,3 Noam Weisbrod,1,4 and John S. Selker1

Effective Darcy-scale contact angles in porous media imbibing solutions of various surface tensions

Creator:: Weisbrod, Noam, McGinnis, Thomas, Rockhold, Mark L., Niemet, Michael R., and Selker, John S.
Abstract:: Surface tensions of high-salinity solutions are significantly different from those of pure water. Our objective was to develop and test a methodology to determine whether these surface tension effects predictably alter imbibition into dry and moist porous media. Static and dynamic experiments were performed using four grades of quartz sand...
Resource Type:: Article
Full Text:: Michael R. Niemet,4 and John S. Selker2 Received 29 February 2008; revised 7 June 2009; accepted 22 June

Impact of soil water property parameterization on atmospheric boundary layer simulation

Creator:: Cuenca, Richard H., Ek, Michael, and Mahrt, Larry
Abstract:: Both the form of functional relationships applied for soil water properties and the natural field-scale variability of such properties can significantly impact simulation of the soil-plant-atmosphere system on a diurnal timescale. Various input parameters for soil water properties including effective saturation, residual water content, anerobiosis point, field capacity, and permanent...
Resource Type:: Article
Full Text:: Richard H. Cuenca Department of Bioresource Engineering, Oregon State University, Corvallis Michael Ek

Quantifying dilution and amplification in a community of hosts for tick-borne pathogens

Creator:: Levi, Taal, Keesing, Felicia, Holt, Robert D., Barfield, Michael, and Ostfeld, Richard S.
Abstract:: Recent controversy over whether biodiversity reduces disease risk (dilution effect) has focused on the ecology of Lyme disease, a tick-borne zoonosis. A criticism of the dilution effect is that increasing host species richness might amplify disease risk, assuming that total host abundance, and therefore feeding opportunities for ticks, increase with...
Resource Type:: Article

Mortalities of Eastern and Pacific Oyster Larvae Caused by the Pathogens Vibrio coralliilyticus and Vibrio tubiashii

Creator:: Richards, Gary P., Watson, Michael A., Needleman, David S., Church, Karlee M., and Häse, Claudia C.
Abstract:: Vibrio tubiashii is reported to be a bacterial pathogen of larval Eastern oysters (Crassostrea virginica) and Pacific oysters (Crassostrea gigas) and has been associated with major hatchery crashes, causing shortages in seed oysters for commercial shellfish producers. Another bacterium, Vibrio coralliilyticus, a well-known coral pathogen, has recently been shown to...
Resource Type:: Article
Full Text:: tubiashii Gary P. Richards,a Michael A. Watson,a David S. Needleman,b Karlee M. Church,c Claudia C. Häsed

Bacterio-opsin gene overexpression fails to elevate fungal disease resistance in transgenic poplar (Populus)

Creator:: Mohamed, Rozi, Meilan, Richard, Ostry, Michael E., Michler, Charles H., and Strauss, Steven H.
Abstract:: Overexpression of the bacterio-opsin (bO) gene in tobacco had previously been shown to induce hypersensitiveresponse- like lesions, increase viral and bacterial disease resistance, and stimulate pathogenesis-related gene expression. To see if this gene enhanced resistance to fungal pathogens of poplar, we generated a total of 35 transgenic lines in two...
Resource Type:: Article
Full Text:: disease resistance in transgenic poplar (Populus) Rozi Mohamed, Richard Meilan, Michael E. Ostry, Charles

A National Evaluation of Community-Based Youth Cessation Programs: End of Program and Twelve-month Outcomes

Creator:: Curry, Susan J., Mermelstein, Robin J., Emery, Sherry L., Sporer, Amy K., Berbaum, Michael L., Campbell, Richard T., Flay, Brian, and Warnecke, Richard B.
Abstract:: Most youth cessation treatment research consists of efficacy studies in which treatments are evaluated under optimal conditions of delivery. Less is known about the effectiveness of youth cessation treatments delivered in real-world, community based settings. A national sample of 41 community-based youth cessation programs participated in a longitudinal evaluation to...
Resource Type:: Article

Ambient PM₂.₅, O₃, and NO₂ Exposures and Associations with Mortality over 16 Years of Follow-Up in the Canadian Census Health and Environment Cohort (CanCHEC)

Creator:: Crouse, Dan L., Peters, Paul A., Hystad, Perry, Brook, Jeffrey R., van Donkelaar, Aaron, Martin, Randall V., Villeneuve, Paul J., Jerrett, Michael, Goldberg, Mark S., Pope, C. Arden, Brauer, Michael, Brook, Robert D., Menard, Richard, and Burnett, Richard T.
Abstract:: Background: Few studies examining the associations between long-term exposure to ambient air pollution and mortality have considered multiple pollutants when assessing changes in exposure due to residential mobility during follow-up. Objective: We investigated associations between cause-specific mortality and ambient concentrations of fine particulate matter (≤ 2.5 μm; PM₂.₅), ozone (O₃),...
Resource Type:: Article

Whole-Tree Bark and Wood Properties of Loblolly Pine from Intensively Managed Plantations

Creator:: Antony, Finto, Schimleck, Laurence R., Daniels, Richard F., Clark, Alexander, Borders, Bruce E., Kane, Michael B., and Burkhart, Harold E.
Abstract:: A study was conducted to identify geographical variation in loblolly pine bark and wood properties at the whole-tree level and to quantify the responses in whole-tree bark and wood properties following contrasting silvicultural practices that included planting density, weed control, and fertilization. Trees were destructively sampled from both conventionally managed...
Resource Type:: Article
Full Text:: Antony, Laurence R. Schimleck, Richard F. Daniels, Alexander Clark III, Bruce E. Borders, Michael B. Kane

ScholarsArchive@OSU

Water vapor transport in the vicinity of imbibing saline plumes: Homogeneous and layered unsaturated porous media

Relationships between gas-liquid interfacial surface area, liquid saturation, and light transmission in variably saturated porous media

Effective Darcy-scale contact angles in porous media imbibing solutions of various surface tensions

Impact of soil water property parameterization on atmospheric boundary layer simulation

Quantifying dilution and amplification in a community of hosts for tick-borne pathogens

Mortalities of Eastern and Pacific Oyster Larvae Caused by the Pathogens Vibrio coralliilyticus and Vibrio tubiashii

Bacterio-opsin gene overexpression fails to elevate fungal disease resistance in transgenic poplar (Populus)

A National Evaluation of Community-Based Youth Cessation Programs: End of Program and Twelve-month Outcomes

Ambient PM₂.₅, O₃, and NO₂ Exposures and Associations with Mortality over 16 Years of Follow-Up in the Canadian Census Health and Environment Cohort (CanCHEC)

Whole-Tree Bark and Wood Properties of Loblolly Pine from Intensively Managed Plantations

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