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Your search keyword '"SCOTT, TROY"' showing total 7 results
Start Over Author "SCOTT, TROY" Topic biological sciences
7 results on '"SCOTT, TROY"'

1. Validity of the indicator organism paradigm for pathogen reduction in reclaimed water and public health protection

Author

Harwood, Valerie J., Levine, Audrey D., Scott, Troy M., Chivukula, Vasanta, Lukasik, Jerzy, Farrah, Samuel R., and Rose, Joan B.

Subjects
Public health -- Risk factors, Bacteria, Pathogenic -- Environmental aspects, Biological sciences
Abstract

The validity of using indicator organisms was tested to predict the presence of absence of pathogens at six wastewater reclamation facilities. A major goal of wastewater reclamation facilities is to reduce pathogen loads in order to decrease public health risks associated with exposure.

Published
2005

2. Influence of salts on virus adsorption to microporous filters

Author

Lukasik, Jerzy, Scott, Troy M., Andryshak, Diane, and Farrah, Samuel R.

Subjects
Microbiological research -- Analysis, Salts -- Research, Virus research -- Research, Adsorption -- Analysis, Biological sciences
Abstract

Research has been conducted on the virus adsorption to microporous filters. The effect of mono-, di- and trivalent salts on this adsorption has been investigated.

Published
2000

3. Presence of pathogens and indicator microbes at a non-point source subtropical recreational marine beach

Author

Abdelzaher, Amir M., Wright, Mary E., Ortega, Cristina, Solo-Gabriele, Helena M., Miller, Gary, Elmir, Samir, Newman, Xihui, Shih, Peter, Bonilla, J. Alfredo, Bonilla, Tonya D., Palmer, Carol J., Scott, Troy, Lukasik, Jerzy, Harwood, Valerie J., McQuaig, Shannon, Sinigalliano, Chris, Gidley, Maribeth, Plano, Lisa R.W., Xiaofang Zhu, Wang, John D., and Fleming, Lora E.

Subjects
Biofiltration -- Usage, Escherichia coli -- Physiological aspects, Escherichia coli -- Genetic aspects, Marine microbiology -- Research, Polymerase chain reaction -- Usage, Biological sciences
Abstract

The presence of all three classes of pathogens (viral, protozoan and bacterial) as well as indicator microbes at a non-point source recreational beach is assessed. The analysis of the various microbes under different targeted environmental conditions has included the evaluation of the sources of microbial contaminants and pathogens and the effectiveness of various analytical methods for microbe detection.

Published
2010

4. Quantification of human polyomaviruses JC virus and BK by TaqMan quantitative PCR and comparison to other water quality indicators in water and fecal samples

Author

McQuaig, Shannon M., Scott, Troy M., Lukasik, Jerzy O., Paul, John H., and Harwood, Valerie J.

Subjects
Microbial source tracking -- Methods, Polymerase chain reaction -- Usage, Polyoma virus -- Genetic aspects, Polyoma virus -- Physiological aspects, Biological sciences
Abstract

A TaqMan quantitative PCR (QPCR) assay is developed and optimized based on the conserved T antigen in order to quantify and detect two human polyomaviruses (HPyVs), JC virus and BK virus. The use of this quantitative assay in water quality research might help regulatory agencies in identifying sources of water pollution for improved remediation of contaminated waters and thus protecting humans from exposure to pathogens.

Published
2009

5. Detection of human-derived fecal pollution in environmental waters by use of a PCR-based human polyomavirus assay

Author

McQuaig, Shannon M., Scott, Troy M., Harwood, Valerie J., Farrah, Samuel R., and Lukasik, Jerzy O.

Subjects
Polyoma virus -- Genetic aspects, Feces -- Environmental aspects, Water pollution -- Environmental aspects, Water pollution -- Research, Water pollution -- Florida, Biological sciences
Abstract

A method developed to concentrate and extract human polyomaviruses (HPyVs) DNA, which are used as indicators of human fecal pollution, from environmental water samples and to amplify it by nested PCR is presented. The sensitivity, specificity and correlation with other human-associated markers have indicated that the HPyV assay can be a useful predictor of human fecal pollution in environmental waters and an important component of the microbial-source-tracking toolbox.

Published
2006

6. Geographical variation in ribotype profiles of Escherichia coli isolates from humans, swine, poultry, beef, and dairy cattle in Florida

Author

Scott, Troy M., Parveen, Salina, Portier, Kenneth M., Rose, Joan B., Tamplin, Mark L., Farrah, Samuel R., Koo, Andrew, and Lukasik, Jerzy

Subjects
Escherichia coli -- Genetic aspects, Escherichia coli -- Analysis, Variation (Biology) -- Environmental aspects, Variation (Biology) -- Analysis, Species -- Genetic aspects, Species -- Analysis, Ribosomes -- Analysis, Biological sciences
Abstract

Results indicate that ribotyping with a single restriction enzyme HindIII is not an effective method to differentiate Escherichia coli isolates within the same species or in samples collected from different geographical regions. However, the method differentiates E. coli from human or animal sources derived from a large geographic region.

Published
2003

7. Microbial source tracking: current methodology and future directions

Author

Scott, Troy M., Rose, Joan B., Jenkins, Tracie M., Farrah, Samuel R., and Lukasik, Jerzy

Subjects
Feces -- Environmental aspects, Microbial metabolism -- Physiological aspects, Decomposition (Chemistry) -- Analysis, Bioremediation -- Methods, Pollution -- Control, Biological sciences
Abstract

This article describes the microbial source tracking methods, which trace fecal pollution using microbiological, genotypic, phenotypic, and chemical protocols. An overview of these methods and how they can be used to predict and identify sources of fecal pollution in the environemnt is presented. Current data indicate that there is no single approach for the identification specific sources of fecal pollution.

Published
2002

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