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10 results on '"DiGangi, E. A."'

3. Day‐to‐day Quantification of Changes in Global Lightning Activity Based on Schumann Resonances

Author

Bozóki, T., primary, Sátori, G., additional, Williams, E., additional, Guha, A., additional, Liu, Y., additional, Steinbach, P., additional, Leal, A., additional, Herein, M., additional, Atkinson, M., additional, Beggan, C. D., additional, DiGangi, E., additional, Koloskov, A., additional, Kulak, A., additional, LaPierre, J., additional, Milling, D.K., additional, Mlynarczyk, J., additional, Neska, A., additional, Potapov, A., additional, Raita, T., additional, Rawat, R., additional, Said, R., additional, Sinha, A.K., additional, and Yampolski, Y., additional

Published
2023
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4. Lightning Enhancement in Moist Convection With Smoke‐Laden Air Advected From Australian Wildfires

Author

Liu, Y., Williams, E., Li, Z., Guha, A., Lapierre, J., Stock, M., Heckman, S., Zhang, Y., DiGangi, E., Liu, Y., Williams, E., Li, Z., Guha, A., Lapierre, J., Stock, M., Heckman, S., Zhang, Y., and DiGangi, E.

Abstract

The 2019–2020 Australian wildfire crisis broke the historical bushfire record and heavily contaminated the continental and offshore atmosphere. This study found that lightning strokes increase considerably, by 73% over land and 270% over ocean, during the wildfire season. Thermodynamic parameters support a weaker forcing, unfavorable for frequent lightning activity over ocean. Clear augmentation of smaller cloud ice particles is identified with aerosol, while cloud liquid water path changes are feeble over ocean. Added aerosol invigorates positive intra-cloud (IC) strokes and negative cloud-to-ground (CG) strokes in moist oceanic convection and facilitates a noticeable positive correlation between precipitation and lightning strokes. Rainfall events accompanied by lightning increase by 240% with added aerosol. Aerosol advected from land to ocean can lead to a larger hydrometeor concentration and smaller-size ice crystals above the freezing level and thereby, invigorate convective strength systematically to stimulate more frequent and more robust mixed-phase development, energizing the lightning discharge process.

Published
2022

10. Maxillary Sinus Infection in a 19th-Century Almshouse Skeletal Sample.

Author

DiGangi, E. A. and Sirianni, J. E.

Subjects
*MAXILLARY sinus diseases, *DENTAL pathology, *ALMSHOUSES, *CEMETERIES, *HISTORY
Abstract

In 1984, the Monroe County Parks Department in the Highland Park section of Rochester, New York, accidentally unearthed part of an unmarked cemetery while landscaping. The cemetery was in use from approximately 1826 to 1863 and was associated with the Monroe County Almshouse. Anthropological examination of dental and skeletal pathology revealed a high incidence of dental infection, known to occasionally be a causal agent of maxillary sinus infection. Therefore, maxillary sinus infections in this sample were studied to ascertain their relationship with dental infections, sex, and age at death. The maxillary sinuses of 99 skeletons were examined for evidence of infection. The presence, location, type and extent of dental infections in the posterior teeth were also recorded. Half the sample exhibited bone remodelling in the maxillary sinus (54 individuals). Dental infections were observed in 82 individuals. Forty-eight demonstrated signs of dental infection and maxillary sinusitis. Statistical analysis revealed that dental infection and maxillary sinus infection were not statistically related. Rather, a rhinogenic method of infection seems likely, which would appear related to the squalid air quality the 19th-century poor were exposed to in the almshouse and city tenements. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Published
2017
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