An Ethnography of Taste: Craft Beer Culture in Hattiesburg

This thesis studies the craft beer culture in Hattiesburg in order to answer the research question: Is taste what draws people to this culture? Beyond conducting classic participant-observation, I deployed the method of sensory activated participant-observation in my fieldwork. In so doing, this research centers the perspective and the data collected on the senses, especially the taste of craft beer. The purpose of this research is to add to our knowledge of the anthropology of the senses and contribute to the literature on the anthropology of taste

Algebraicity of higher Green functions at a CM point

In this paper, we investigate the algebraic nature of the value of a higher Green function on an orthogonal Shimura variety at a single CM point. This is motivated by a conjecture of Gross and Zagier in the setting of higher Green functions on the product of two modular curves. In the process, we will study analogue of harmonic Maass forms in the setting of Hilbert modular forms, and obtain results concerning the arithmetic of their holomorphic part Fourier coefficients. As a consequence, we confirm the conjecture of Gross and Zagier under mild condition on the discriminant of the CM point.Comment: 38 pages, comments welcom

Noise analysis for switched-capacitor circuitry

Track and hold circuits play a key role in mixed-signal, analog to digital interfaces. They are often used as part of the analog to digital conversion (ADC) process whereby a time-varying analog signal is sampled at the transition of a clock signal and subsequently held for a part of the conversion process. This approach is used, in part, because the remainder of the ADC conversion process is adversely affected if the input signal varies during the conversion.;Noise, and in particular thermal noise, is recognized as a major bottleneck limiting the performance of switched-capacitor circuits and it is essential that all of the major contributors to noise are appropriately considered when designing any switched-capacitor circuit. Invariably, switched-capacitor (SC) circuit designers only discuss noise generated in the track mode when reporting noise performance and correspondingly ignore noise generated in the hold mode. In particular, most authors simply use the well-known expression kT/C to represent the variance of sampled thermal noise present on a sampling capacitor [16]-[19]. The spectrum of the continuous-time sample and hold noise has been discussed as the switches capacitor circuitry field evolved [1]-[3] but the early authors didn\u27t discuss the relationship between the spectrum of the sample and hold noise and the sampled noise characterized with the kT/C expression. More important, noise present during the hold mode which affects subsequent sampling has not been discussed in the literature. In the thesis, the continuous noise which is generated during the second phase of a SC circuit will be compared to the S/H noise.;In chapter two of this thesis, a numerical comparison between the RMS value of the continuous-time S/H noise and the sampled kT/C noise is presented. In chapter three, thermal noise present during the hold mode for two switched-capacitor circuits which are often used in analog to digital converters are investigated and compared with the standard sampled noise expression. In chapter four, it is shown that when these switched-capacitor circuits are used in an analog to digital converter with low speed and small resolution, the continuous-time hold noise can be justifiably neglected but when the sample frequency and resolution get higher, the noise that is generated in the hold phase is not negligible and can cause significant performance degradation of the system

Average CM-values of Higher Green's Function and Factorization

In this paper, we prove an averaged version of an algebraicity conjecture in \cite{GKZ87} concerning the values of higher Green's function at CM points. Furthermore, we give the factorization of the ideal generated by such algebraic value in the spirit of the famous work of Gross and Zagier on singular moduli.Comment: 53 pages, comments welcome