Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Document formatted into pages; contains xiii, 155 p.; also includes map, graphics (some col.) Includes bibliographical references (p. 149-155). Available online via OhioLINK's ETD Center

Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 44-45).

Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 86-87).

Thesis (M.S.)--Wisconsin. / Includes bibliographical references (leaf 70).

Published also as Thesis (PH. D.) Columbia University. / Columbia University contributions to philosophy and psychology, vol. XXV, no. 3.

Inaug.-Diss.--Friedrich Wilhelms Universität zu Berlin.

Inaug.-diss.--Rostock. / "Literatur-verzeichnis": p. [56]-57.

Research investigating tornado outbreaks has primarily focused on events that have occurred during daylight hours. While nocturnal outbreaks tend to be less significant in terms of spatial extent and severity than daytime outbreaks, they still pose a serious threat to the general public, owing to the increased difficulty of conveying risk information during nighttime hours. Additionally, the meteorological conditions driving these events are less well established, increasing forecast difficulty. The goal of this research is to establish a climatology of purely nocturnal tornado outbreaks. Events that met the criteria set in this study for nocturnal outbreaks were analyzed spatially and temporally. A diagnostic mesoscale analysis was also performed on the environments present at the onset of the outbreaks. These analyses yielded new information regarding nocturnal tornado outbreaks, as well as results similar to findings of other research focused on nocturnal tornadoes.

An estimated 240 million people worldwide suffer from migraines. Migraines have disruptive capabilities, therefore, understanding the mechanisms that trigger them is crucial for effective prevention and treatment. Air mass types and migraine induced emergency department (ED) visits in select North Carolina counties were collected over a seven year period in order to determine a potential relationship. Barometric pressure changes associated with Transitional air masses were also analyzed for potential trends. Bootstrapping showed that Tropical air masses resulted in greater numbers of migraine ED patients, while Polar air masses led to fewer. Moist Polar air masses in particular were found to correspond with the fewest number of migraine ED patients. On Transitional air mass days, the numbers of migraine ED patients fell between those of Tropical air mass days and Polar air mass days. With regards to barometric pressure changes associated with Transitional air masses, no trends were found.

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