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Your search keyword '"Heard, Nina"' showing total 14 results
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14 results on '"Heard, Nina"'

1. List of Contributors

Author

Ahrens, John F., primary, Banks, Philip A., additional, Barringer, V. Michael, additional, Brady, James F., additional, Bray, Leslie D., additional, Breckenridge, Charles B., additional, Bretzlaff, Robert S., additional, Bridges, David C., additional, Burnside, Orvin C., additional, Carlson, Gerald A., additional, Carroll, Beth, additional, Cessna, Allan J., additional, Christensen, B.R., additional, Coats, G. Euel, additional, Cooper, Dennis, additional, Dando, Cheryl, additional, Devine, Malcolm D., additional, Eldridge, J. Charles, additional, Elmore, Clyde L., additional, Fawcett, Richard S., additional, Gianessi, Leonard P., additional, Gould, Thomas J., additional, Hackett, Dennis S., additional, Heard, Nina E., additional, Hebblethwaite, John F., additional, Heri, Walter, additional, Hill, Eugene R., additional, Kahrs, Robert A., additional, Kelly, Steven T., additional, Knake, Ellery L., additional, Koskinen, William C., additional, Laird, David A., additional, Lange, Arthur H., additional, LeBaron, Homer M., additional, Mandelbaum, Raphi T., additional, Marut, Kendra M., additional, McFarland, Janis E., additional, McGlamery, Marshal D., additional, McLaughlin, Richard A., additional, Müller, Gustav, additional, Nabors, James B., additional, Newton, Michael, additional, Norwood, Charles A., additional, Orson, James H., additional, Parshley, Thomas, additional, Pfister, Frank, additional, Pike, David R., additional, Regehr, David L., additional, Richard, Edward P., additional, Sadowsky, Michael J., additional, Santo, Lance T., additional, Scribner, Elisabeth A., additional, Sharma, Shiv D., additional, Shukla, Amit, additional, Sielken, Robert L., additional, Simoneaux, Bruce J., additional, Singh, Megh, additional, Smith, Dudley T., additional, Solomon, Keith R., additional, Somody, Carol N., additional, Stevens, James T., additional, Sumner, Darrell D., additional, Szarka, Arpad Z., additional, Taylor, James M., additional, Thurman, E. Michael, additional, Tierney, Dennis P., additional, Trebst, Achim, additional, Valdez-Flores, Ciriaco, additional, Wackett, Lawrence P., additional, Werner, Christoph, additional, Wetzel, Lawrence T., additional, White, Jere, additional, and Yokley, Robert A., additional

Published
2008
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3. Electrochemical versus anionic oxygenation of azathymine derivatives

Author

Butora, Gabor, Reed, Josephine W., Hudlicky, Tomas, Brammer, Larry E., Jr., Higgs, Paul I., Simmons, Dana P., and Heard, Nina E.

Subjects
Inorganic compounds -- Synthesis, Insecticides -- Analysis, Chemistry
Abstract

A novel method for the synthesis of hemiaminal was developed based on the trapping of the dianion of pymetrozine with oxygen and the successive reduction of the intermediate product with ferrous salts. The synthetic process was dependent on reductive and condensation techniques including the anionic oxidation of pymetrozine for the construction of the triazine. Furthermore, the preparation of the hemiaminals was also dependent on the electrochemical generation of methyl hemiaminals.

Published
1997

4. Synthesis of a novel N-hydroxypyrrole via lithium perchlorate accelerated Diels-Alder methodology

Author

Heard, Nina E. and Turner, JoLyn

Subjects
Diels-Alder reaction -- Analysis, Organic compounds -- Synthesis, Biological sciences, Chemistry
Abstract

The synthesis of N-hydroxypyrrole by using lithium perchlorate catalyzed Diels-Alder method takes place in seven steps with an overall yield of 23%. High yields of a important intermediate azanorbornadiene is also obtained during the process. The experimental set up of the synthesis of N-hydroxypyrrole is discussed.

Published
1995

5. Use of the RISK21 roadmap and matrix: human health risk assessment of the use of a pyrethroid in bed netting

Author

Doe, John E., primary, Lander, Deborah R., additional, Doerrer, Nancy G., additional, Heard, Nina, additional, Hines, Ronald N., additional, Lowit, Anna B., additional, Pastoor, Timothy, additional, Phillips, Richard D., additional, Sargent, Dana, additional, Sherman, James H., additional, Young Tanir, Jennifer, additional, and Embry, Michelle R., additional

Published
2015
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6. Use of the RISK21 roadmap and matrix: human health risk assessment of the use of a pyrethroid in bed netting.

Author

Doe, John E., Lander, Deborah R., Doerrer, Nancy G., Heard, Nina, Hines, Ronald N., Lowit, Anna B., Pastoor, Timothy, Phillips, Richard D., Sargent, Dana, Sherman, James H., Young Tanir, Jennifer, and Embry, Michelle R.

Subjects
HEALTH risk assessment, PREVENTIVE medicine, PYRETHROIDS, TOXICOLOGY, NETTING, PUBLIC health
Abstract

The HESI-coordinated RISK21 roadmap and matrix are tools that provide a transparent method to compare exposure and toxicity information and assess whether additional refinement is required to obtain the necessary precision level for a decision regarding safety. A case study of the use of a pyrethroid, “pseudomethrin,” in bed netting to control malaria is presented to demonstrate the application of the roadmap and matrix. The evaluation began with a problem formulation step. The first assessment utilized existing information pertaining to the use and the class of chemistry. At each stage of the step-wise approach, the precision of the toxicity and exposure estimates were refined as necessary by obtaining key data which enabled a decision on safety to be made efficiently and with confidence. The evaluation demonstrated the concept of using existing information within the RISK21 matrix to drive the generation of additional data using a value-of-information approach. The use of the matrix highlighted whether exposure or toxicity required further investigation and emphasized the need to address the default uncertainty factor of 100 at the highest tier of the evaluation. It also showed how new methodology such as the use ofin vitrostudies and assays could be used to answer the specific questions which arise through the use of the matrix. The matrix also serves as a useful means to communicate progress to stakeholders during an assessment of chemical use. [ABSTRACT FROM AUTHOR]

Published
2016
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