- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 131 to 140 of 254 (0.095 seconds)Spelling suggestions: "subject:"0nvironmental microbiology"" "subject:"0nvironmental microbiologyc""
| 131 |
Effect of Soil Amendments on In Situ Biodegradation in Creosote Contaminated SoilsLanza, G. R., Scheuerman, Phillip R. 09 September 1996 (has links)
No description available.
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| 132 |
Biosurvey of a Constructed Wetland Using a Newly Developed Treatment Wetlands Evaluation IndexRichardson, J., Scheuerman, Phillip R., Benton, M. 01 January 1996 (has links)
No description available.
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| 133 |
An Evaluation of Microbial Enzyme Assays as an Indicator of Pollution in Stream SedimentsCase, J., Scheuerman, Phillip R., Bishop, C., Hougland, A. 01 January 1997 (has links)
No description available.
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| 134 |
Determination of Potential Risk Associated with Cryptosporidium and Giardia in a Rural Water SourceSwiger, J., Scheuerman, Phillip R., Musich, Phillip R. 01 January 1998 (has links)
No description available.
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| 135 |
The Effects of Substrate Concentration and Cell Density on the Rate of Degradation of o-cresol Using a Freeze-Dried ConsortiumWalls, A., Scheuerman, Phillip R. 01 January 1998 (has links)
No description available.
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| 136 |
Roadway Construction Effects on South Indian Creek and Tributaries, Erwin TN to the North Carolina borderScheuerman, Phillip R., Farris, J. L., Cherry, D. S., Currie, R. J., Milam, C. D., Napier, J. D. 01 January 1999 (has links)
No description available.
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| 137 |
Potential Impacts of Metal Nanoparticles on the Growth and Development of Crop PlantsPokhrel, Lok R., Scheuerman, Phillip R., Tolaymat, Thabet M., Dubey, Brajesh 05 April 2012 (has links)
Due to unique physical and chemical properties, engineered nanomaterials (ENM) have been used in more than 2000 products that are commercialized in various sectors including electronics, therapeutics, medical diagnostics, clothing, and personal care products. Increasing use and unique properties of ENMs have raised concerns for their potential to cause harm to the receptor organisms. Soil contamination of ENMs may occur due to land application of biosolids and wastewater, land disposal of nanoproducts, surface runoff, and atmospheric deposition. Little is known about the potential impact of ENMs to the terrestrial crop plants. Therefore, we investigated the potential developmental phytotoxicity of silver and zinc oxide nanoparticles (NP) on two agriculturally significant crop plant species, Zea mays (maize) and Brassica oleracea var. capitata (cabbage), using microscopic examination of the root anatomy, germination rate and root elongation measurements. Results showed that the NPs evaluated were less toxic to germination and root growth than Ag+ or Zn+2 treatment. Several anatomical alterations were observed in the primary root cells in maize with both NPs and their corresponding ionic salt treatments. Greater biouptake of Ag occurred with Ag+ treatment than with the nanosilver treatment in maize. The number of metaxylem vessels was also altered with nanosilver, Ag+, and Zn+2 treatments, but not with nanozinc oxide treatment. These findings suggest that the NPs and their ions may impair the growth and development of the terrestrial crop plants. To understand whether uptake of nanosilver by maize is of human health concern would require a human health risk assessment considering exposure to nanosilver via human consumption of edible crops such as maize and cabbage.
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| 138 |
Development of Multiple Regression Models to Predict Sources of Fecal Pollution in the Watauga River Watershed in Northeast TennesseeHall, Kimberlee K., Scheuerman, Phillip R. 01 January 2013 (has links)
No description available.
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| 139 |
Patterns of Macroinvertebrate Responses in South Indian Creek and Tributaries Receiving Mineral Contributions Throughout an Elaborate Interstate Construction Project for Tennessee and North CarolinaFarris, J. L., Scheuerman, Phillip R., Cherry, D. 10 November 2013 (has links)
No description available.
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| 140 |
The Effect of Water Hardness and Humic Acid on the Teratogenicity and Toxicity of Atrazine Using FETAXNapier, J. D., Scheuerman, Phillip R., Pyles, Rebecca A. 01 January 1998 (has links)
No description available.
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