Contributed Presentations:

1. Some Recent Advances in Quantitative Cancer Risk Assessment. The Biometric Society (ENAR) joint meeting with the Institute of Mathematical Statistics and the American Statistical Association. March 12, 1984. Orlando, Florida.
   
2. How Near is Near Optimal: An Example of the Operations Research - Statistics Interface. The TAMU ORSA Student Chapter. June 19, 1984.
   
3. Quantitative Cancer Risk Assessment. Environmental Toxicology Seminar. Texas A&M University, February, 1985.
   
4. Bounds for Safe Doses in Quantitative Risk Assessment. The Biometric Society (ENAR) joint meeting with the American Statistical Association. March 25, 1985. Raleigh, North Carolina.
   
5. Issues in Assessing the Carcinogenic Hazards of Ethylene Oxide. Proceedings of the Third Rocky Mountain Conference on Medical Applications of Statistics. University of Colorado School of Medicine. May 31, 1985. Presented by S. G. Austin.
   
6. Alternative Approaches to Mathematically Analyzing the Bioassay Data for 2,3,7,8, - TCDD. Society of Toxicology. New Orleans, Louisiana. March 3 - 7, 1986.
   
7. Incorporating More Science into Cancer Dose-Response Extrapolations. Society for Risk Analysis. Boston, Mass. November 10, 1986.
   
8. Utilizing More Science in Cancer Dose-Response Extrapolations. Joint Meetings of the Biometric Society, American Statistical Association, and Institute of Mathematical Statistics. March 23, 1987.
   
9. Risk Assessment: State-of-the-Art. New York State Department of Environmental Conservation, Albany, New York, September 30, 1987.
   
10. Risk Assessment: State-of-the-Art. New York State Department of Health, Albany, New York, February 11, 1988.
    
11. Useful Tools for Evaluating and Presenting More Science in Quantitative Cancer Risk Assessments. EPA, Washington, D.C. October 28, 1988.
    
12. Quantitative Cancer Dose-Response Modeling for All Ages. 1988 Annual Conference of the Society for Risk Analysis. Washington, D.C. November 1, 1988.
    
13. Technical Workshop for Addressing Human Health Risks Associated with Fisheries Contaminated by Oil Spills. National Oceanic and Atmospheric Administration (NOAA). Aspen Institute, Wye Island, Maryland. August 14-15, 1990.
    
14. Independent Review Panel on Statistical Aspects of Cancer Risk Estimation for Ethylene Thiourea. National Center for Toxicological Research. Jefferson, Arkansas. November 19, 1990.
    
15. State of Illinois Workshop on Quantitative Cancer Risk Assessment. St. Louis, Missouri. December 13-14, 1990.
    
16. NiPERAs Research Planning Workshop. Research Triangle Park, North Carolina. December 17, 1990.
    
17. Workshop to Peer Review the OMB Report on Risk Assessment and Management. Center for Risk Analysis, Harvard School of Public Health. Boston, Massachusetts. March 6-7, 1991.
    
18. A Co-Located Distributions Approach to Estimating the Bioaccumulation Factor for Ecological Risk Assessment. Poster Session. Society of Toxicology: 1993 Annual Meeting. New Orleans, Louisiana. March 17, 1993. Received the Award for Outstanding Presentation from the Risk Assessment Specialty Section.
    
19. Background Carcinogenicity Rates: Another Flaw in the Linearized Multistage Model Upper Bounds on Human Cancer Potency. Poster Session. The First Annual HERL Symposium: Biological Mechanisms and Quantitative Risk Assessment. EPA Health Effects Research Laboratory, Research Triangle Park, North Carolina. November 1 - 4, 1993.
    
20. Application of Geographical Information Systems (GIS) to Ecological Management Decision Support. Poster Session (with P. A. Clifford, D.E.Barchers, D.F. Ludwig, J.S. Klingensmith, R.V. Graham, and M.I. Banton). SETAC: 1993 Annual Meeting. Houston, Texas. November 14 - 18, 1993.
    
21. Quantifying Tumor Probabilities in Two-Stage Growth Models and Exploring Their Dependence on the Combination of Parameter Magnitures, How Dose and Time Affect Parameter Magnitudes, and Cell Subpopulations with Different Parameter Magnitudes: Computer Programs and Graphical Results. Poster Session (with Robert S. Bretzlaff). 7th International Conference on Carcinogenesis and Risk Assessment: Growth Factors and Tumor Promotion: Implications for Risk Assessment. Barton Creek Conference Center, Austin, Texas. December 1 - 4, 1993.
    
22. More Biologically Based Dose-Response Modeling by Incorporating Invaders and Defenders into the Biologically Effective Dose. Poster Session. 7th International Conference on Carcinogenesis and Risk Assessment: Growth Factors and Tumor Promotion: Implications for Risk Assessment. Barton Creek Conference Center, Austin, Texas. December 1 - 4, 1993.
    
23. DistGEN (Probability Distribution Generator): Monte Carlo Simulation Software for Environmental Phenomena and Statistical Methodology. Poster Session with Ciriaco Valdez-Flores. Society of Environmental Toxicology and Chemistry. Denver, Colorado. October 31, 1994.
    
24. DistFIT (Probability Distribution Fitting): A Software System for Fitting Parametric Distributions to Environmental Data. Poster Session with Ciriaco Valdez-Flores. Society of Environmental Toxicology and Chemistry. Denver, Colorado. October 31, 1994.
    
25. Designing Field Sampling Programs for Prey Species: Rocky Mountain Case Study. Poster Session with Ciriaco Valdez-Flores, J. S. Klingensmith, and M. I.. Banton. Society of Environmental Toxicology and Chemistry. Denver, Colorado. November 3, 1994.
    
26. Overcoming Statistical Pitfalls in Ecological Risk Assessment. Poster Session with Ciriaco Valdez-Flores, J. S. Klingensmith, and M. I.. Banton. Society of Environmental Toxicology and Chemistry. Denver, Colorado. November 3, 1994.
    
27. Use of Probabilistic Expert Judgment in Uncertainty Analysis of Carcinogenic Potency. Oral Presentation with Gray, George M., S. John Evans, Andrew E. Smith, Ciriaco Valdez‑Flores, and John D. Graham. Society for Risk Analysis: Annual Meeting. Baltimore, Maryland. December 5, 1994.
    
28. Estimating Cancer Risks from Dermal Exposure to Benzo[A]pyrene. Poster presentation with L. E. Tonner-Navarro, N. C. Halmes, R. C. James, and S. M. Roberts. Society of Toxicoloxy, 37th Annual Meeting. Seattle, WA. March 1-5. 1998.
    
29. Development of Inhalation and Oral Benchmark Doses for Trichloroethylene Based on Carcinogenicity in Mice. Poster presentation with C. J. Saranko, P. S. Guzelian, R. C. James, and S. M. Roberts. Society of Toxicoloxy, 38th Annual Meeting. New Orleans, LA. March 14-18, 1999.
    
30. Dose-Response Implications of the University of Alabama Study of Lymphohematopoietic Cancer Among Workers Exposed to 1,3-Butadiene, Styrene, and Dimethyldithiocarbamate in the Synthetic Rubber Industry. Oral Presentation with Ciriaco Valdez-Flores. International Symposium: Evaluation of Butadiene, Isoprene & Chloroprene Health Risks. London, UK. September 12-14, 2000.
    
31. Maximum Likelihood Estimation of Single-Unit Residue Concentration Distributions from Composite Data. Oral presentation with Larry R. Holden and Ciriaco Valdez-Flores. Fourth International Conference on Environmetrics and Chemometrics. Las Vegas, NV. September 18-20. 2000.
    
32. Non-Linear Mixed Effects Models for Cholinesterase Activity in Rats Exposed to Aldicarb. Poster presentation with C. A. Clayton, T. B. Starr, A. J. Tobia, and P. G. Pontal. Society of Toxicoloxy, 40th Annual Meeting. San Francisco, CA. March 25-29. 2001.
    
33. Mechanisms Undelying the Occurrence of Mammary Adenocarcinomas and Fibroadenomas in Female Sprague-Dawley Rats Exposed to Atrazine: A Statistical Evaluation of Risk Factors. Poster presentation with C. B. Breckenridge, J. T. Stevens, J. W. Simpkins, J. C. Eldridge, L. Tirey, and C. Valdez-Flores. Society of Toxicoloxy, 40th Annual Meeting. San Francisco, CA. March 25-29. 2001.
    
34. Time-to-Tumor Analyses of Liver Tumors in Mice Exposed to Thiamethoxam. Poster presentation with C. Valdez-Flores, L. Holden, T. Pastoor, and J. T. Stevens. Society of Toxicoloxy, 40th Annual Meeting. San Francisco, CA. March 25-29. 2001.