Index Catalog // ScholarsArchive@OSU

Technical change and pollution abatement costs

Creator:: Färe, Rolf, Grosskopf, Shawna, and Pasurka, Carl
Abstract:: There is continuing interest in the trend of costs associated with pollution abatement activities. We specify an environmental production technology to model the joint production of good and bad outputs. The joint production model calculates pollution abatement costs and identifies changes in these costs associated with: (1) technical change, (2)...
Resource Type:: Article
Full Text:: Technical change and pollution abatement

Technical Note: Convergence analysis of a polyenergetic SART algorithm

Creator:: Humphries, T.
Abstract:: PURPOSE: We analyze a recently proposed polyenergetic version of the simultaneous algebraic reconstruction technique (SART). This algorithm, denoted pSART, replaces the monoenergetic forward projection operation used by SART with a post-log, polyenergetic forward projection, while leaving the rest of the algorithm unchanged. While the proposed algorithm provides good results empirically,...
Resource Type:: Article
Full Text:: Technical Note: Convergence analysis of a

Early retreat of the Alaska Peninsula Glacier Complex and the implications for coastal migrations of First Americans

Creator:: Misarti, Nicole, Finney, Bruce P., Jordan, James W., Maschner, Herbert D. G., Addison, Jason A., Shapley, Mark D., Krumhardt, Andrea, and Beget, James E.
Abstract:: The debate over a coastal migration route for the First Americans revolves around two major points: seafaring technology, and a viable landscape and resource base. Three lake cores from Sanak Island in the western Gulf of Alaska yield the first radiocarbon ages from the continental shelf of the Northeast Pacific...
Resource Type:: Article
Full Text:: . Arnold, T.G., 2002. Radiocarbon dates from the ice-free corridor. Radiocarbon 44, 437e454. Borchardt

Planning Best Management Practices to Reduce Sediment Delivery from Forest Roads Using WEPP:Road Erosion Modeling and Simulated Annealing Optimization

Creator:: Efta, James A. and Chung, Woodam
Abstract:: Planning and implementation of road BMPs on a watershed scale can be a difficult task because of the need to prioritize locations while accounting for multiple constraints, such as the available budget, continuous maintenance, and equipment scheduling. Using simulated annealing (SA) as its heuristic optimizer, BMP-SA accounts for sediment being...
Resource Type:: Article
Full Text:: Roads in Idaho. Wa- ter Resources Bulletin 32: 371–382. Murphy, D. D., Knopp, C. M., 2000: Lake Tahoe

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

Creator:: Davies, Kirk W., Bates, Jonathan D., Boyd, Chad S., and Nafus, Aleta M.
Abstract:: Fire has largely been excluded from many mountain big sagebrush communities. Managers are reluctant to reintroduce fire, especially in communities without significant conifer encroachment, because of the decline in sagebrush-associated wildlife. Given this management direction, a better understanding of fire exclusion and burning effects is needed. We compared burned to...
Resource Type:: Article
Full Text:: Station, Technical Bulletin 152. (Corvallis, OR) Nelle PJ, Reese KP, Connelly JW (2000) Long-term

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Creator:: Kennedy, Patricia L., Bartuszevige, Anne M., Houle, Marcy, Humphrey, Ann B., Dugger, Katie M., and Williams, John
Abstract:: Potential for large prairie remnants to provide habitat for grassland-obligate wildlife may be compromised by nonsustainable range-management practices. In 1979–1980, high nesting densities of 3 species of hawks in the genus Buteo—Ferruginous Hawk (Buteo regalis), Red-tailed Hawk (B. jamaicensis), and Swainson’s Hawk (B. swainsoni)—were documented on the Zumwalt Prairie and...
Resource Type:: Article
Full Text:: thank the Oregon Department of Fish and Wildlife (V. Coggins and M. Hansen) for technical assistance

Demographic response of northern spotted owls to barred owl removal

Creator:: Diller, Lowell V., Hamm, Keith A., Early, Desiree A., Lamphear, David W., Dugger, Katie M., Yackulic, Charles B., Schwarz, Carl J., Carlson, Peter C., and McDonald, Trent L.
Abstract:: Federally listed as threatened in 1990 primarily because of habitat loss, the northern spotted owl (Strix occidentalis caurina) has continued to decline despite conservation efforts resulting in forested habitat being reserved throughout its range. Recently, there is growing evidence the congeneric invasive barred owl (Strix varia) may be responsible for...
Resource Type:: Article

Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of waves

Creator:: Berg, P., Reimers, Clare E., Rosman, J. H., Huettel, M., Delgard, M. L., Reidenbach, M. A., and Özkan-Haller, H. Tuba
Abstract:: Extracting benthic oxygen fluxes from eddy covariance time series measured in the presence of surface gravity waves requires careful consideration of the temporal alignment of the vertical velocity and the oxygen concentration. Using a model based on linear wave theory and measured eddy covariance data, we show that a substantial...
Resource Type:: Article
Full Text:: Technical note: Time lag correction of aquatic eddy

An Online Database for Informing Ecological Network Models: http://kelpforest.ucsc.edu

Creator:: Beas-Luna, Rodrigo, Novak, Mark, Carr, Mark H., Tinker, Martin T., Black, August, Caselle, Jennifer E., Hoban, Michael, Malone, Dan, and Iles, Alison
Abstract:: Ecological network models and analyses are recognized as valuable tools for understanding the dynamics and resiliency of ecosystems, and for informing ecosystem-based approaches to management. However, few databases exist that can provide the life history, demographic and species interaction information necessary to parameterize ecological network models. Faced with the difficulty...
Resource Type:: Article
Full Text:: technical details on how to customize this database and apply it to other ecosystems are freely available

Enhancing the T-shaped learning profile when teaching hydrology using data, modeling, and visualization activities

Creator:: Sanchez, Christopher A., Ruddell, Benjamin L., Ruddell, Benjamin L., and Merwade, Venkatesh
Abstract:: Previous research has suggested that the use of more authentic learning activities can produce more robust and durable knowledge gains. This is consistent with calls within civil engineering education, specifically hydrology, that suggest that curricula should more often include professional perspective and data analysis skills to better develop the "T-shaped"...
Resource Type:: Article
Full Text:: technical depth). It was expected that the inclusion of a data-driven simulation lab exercise that was

ScholarsArchive@OSU

Technical change and pollution abatement costs

Technical Note: Convergence analysis of a polyenergetic SART algorithm

Early retreat of the Alaska Peninsula Glacier Complex and the implications for coastal migrations of First Americans

Planning Best Management Practices to Reduce Sediment Delivery from Forest Roads Using WEPP:Road Erosion Modeling and Simulated Annealing Optimization

Is fire exclusion in mountain big sagebrush communities prudent? Soil nutrient, plant diversity and arthropod response to burning

Stable occupancy by breeding hawks (Buteo spp.) over 25 years on a privately managed bunchgrass prairie in northeastern Oregon, USA

Demographic response of northern spotted owls to barred owl removal

Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of waves

An Online Database for Informing Ecological Network Models: http://kelpforest.ucsc.edu

Enhancing the T-shaped learning profile when teaching hydrology using data, modeling, and visualization activities

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