Pattern recognition is a challenging aspect of forensic fire debris analysis that is addressed by my research group. Fire debris analysts are required to detect the pattern of a multiple-component ignitable liquid in the presence of a highly complex background. Gas chromatography – mass spectrometry is the industry standard method for analysis of fire debris samples. Interpretation of the data and inference regarding the presence or absence of ignitable liquid residue benefits greatly from the application of chemometrics. Statistical learning methods have been shown by our laboratory to produce validated models that allow the analyst to make probabilistic statements regarding the evidentiary value of fire debris samples.
- Leffler,* J. E., Sigman, M. E. and Lindley, S. M. “Supercritical Carbon Dioxide: Behavior of π* and β Solvatochromic Parameters in Media of Different Densities,” J. Am. Chem. Soc. 1985, 107, 1471.
- Leffler,* J. E. and Sigman, M. E. “Supercritical Carbon Dioxide 2. π* and the Dielectric Function for Supercritical Carbon Dioxide Media at Various Densities,” J. Phys. Chem. 1986, 90, 6063.
- Leffler,* J. E. and Sigman, M. E. “Supercritical Carbon Dioxide 3. The Decomposition of Phenylazotriphenylmethane in Supercritical Carbon Dioxide,” J. Org. Chem. 1987, 52, 1165.
- Leffler,* J. E. and Sigman, M. E. “Supercritical Carbon Dioxide: The cis to trans Relaxation and the , n-π* Transition of 4-(Dimethylamino)-4′-nitroazobenzene,” J. Org. Chem. 1987, 52, 1165.
- Leffler,* J. E., Sigman, M. E. and Barbas, J. T. “Supercritical Carbon Dioxide 5. Carboxyinversion Reactions of Diacyl Peroxides. Alkyl Group Rearrangement and Carbon Dioxide Exchange,” J. Org. Chem. 1987, 52, 1754.
- Schuster,* G. B., Sigman, M. E. and Autrey, T. “Aroylnitrenes with Singlet Ground States: Photochemistry of Acetyl-Substituted Aroyl and Aryloxycarbonyl Azides,” J. Am. Chem. Soc. 1988, 110, 4297.
- Sigman, M. E. and Closs,* G. L. “Free Energy and Structure Dependence of Intramolecular Triplet-Energy Transfer in Organic Model Compounds,” J. Phys. Chem. 1991, 95, 5012-5017.
- Sigman,* M. E., Zingg, S. P., Pagni, R. M. and Burns, J. H. “Photochemistry of Anthracene in Water,” Tetrahedron Lett. 1991, 32(41), 5737-5740.
- MacInnis, J. M., McDonald, K. A., Sigman, M. E. and Greenbaum,* E. “Simultaneous Measurement of Photosynthetic Oxygen Evolution and Carbon Dioxide Assimilation Under Anaerobiosis,” Photochem. Photobiol. 1992, 58, 718-723.
- Barbas, J. T., Sigman,* M. E., Buchanan, A. C., III and Chevis, E. A. “Photolysis of Substituted Naphthalenes on SiO2 and Al2O3,” Photochem. Photobiol. 1993, 58(2), 155-158.
The UCF College of Sciences Distinguished Speaker Series is back this September with six UCF faculty who are experts in topics relevant to the natural, computational, social or behavioral sciences and the devel... Read more
The College of Sciences is proud to announce the 2015-2016 winners for the Teaching Incentive Program and Research Incentive Award. Each year, UCF’s Academic Affairs’ Office of Faculty Excellence gives inc... Read more
On March 11, Michael Sigman, Ph.D., Candice Bridge, Ph.D., and Erika Remley, M.S., presented at the Conference on the Modern Interpretation of Forensic Evidence at Florida A&M University, College of Law ... Read more
May 8, 2015 the College of Sciences celebrated 17 new Ph.D’s at a special graduation reception. The event was held in the afternoon in the Physical Sciences building. Student’s family members and faculty a... Read more