Structural dynamics in three polymer blend systems, differing largely with respect to morphology, have been investigated. The first system, composed of two immiscible homopolymers, exhibits a microstructure of micron-sized droplets dispersed in a matrix phase. We have examined small-angle x-ray scattering (SAXS) as a new approach for conducting in situ...
Alkenylsilanes of varying chain lengths are investigated as simultaneous chain transfer agents + comonomers in organotitanium-mediated olefin polymerization processes. Ethylene + alkenylsilane polymerizations were carried out with activated Me2Si(Me4C5)(NtBu)TiMe2 and (-CH2CH2-3,3'){(5-indenyl )[1-Me2Si(tBuN)]}2Ti2Me4 precatalysts. Alkenylsilane incorporation levels follow the trend C8H15SiH3 < C6H11SiH3 ≈ C4H7SiH3 < C3H5SiH3. Long-chain branching levels versus...
Why would someone's judgments and choices disregard the consequences he or she cares about most? Considerable research appears to show that in many contexts, people show precisely this paradoxical tendency. Researchers interpret these results as showing that people sometimes make choices on the basis of moral factors -- factors that...
In this dissertation, I analyse the effectiveness of various political institutions in aggregating private information. In the first two chapters, I consider diversity of information among the voters about given electoral alternatives and examine the conditions under which plurality rule voting aggregates such information. In the third chapter, I consider...
Oxide surface structures play a key role in many technological processes, including catalysis, thin film growth, and layered structures, and a thorough understanding of surface structures and surface structure dynamics is required in order to better engineer materials systems for these processes. This research works towards understanding these fundamental principles...
The work described here includes both fundamental and application based studies centered around the use of plasmonic sensors. Fundamental studies focus on probing the optical properties of nanosphere lithography (NSL) fabricated Ag nanoparticles, while surface-enhanced Raman spectroscopy (SERS) sensors are applied to identify and characterize artists' red dye and red...
What can the theatrical use of food accomplish in performances which assert cultural, legal, or moral rights to food production and consumption in a food insecure society? Case studies comprising the USDA's 1933-34 World's Fair exhibits, the May 1933 Wisconsin Cooperative Milk Pool protest, the 1936 Federal Theatre Project living...
This paper describes the technology and methods deployed in the continuous autonomous remote monitoring of cracks in interior and exterior walls of a residence near a limestone quarry. The object is to quantitatively compare crack response to blast-induced ground motion to that induced by diurnal temperature changes, weather fronts, and...
Presented at the University of Western Ontario's "Digital Humanities Speaker Series" on October 16, 2013. An earlier version was presented at the Illinois Institute of Technology's "Digital Humanities Speaker Series" on September 11, 2013. Many thanks to Whitney Trettien, Heather Froehlich, David Golumbia, and Robin Camille Davis for reading and...
Teasing is commonplace in our social interactions (Kowalski, 2007). Due to its paradoxical nature it can be employed to produce both positive and negative outcomes (Keltner et al., 1998) however, the ambiguity and subjectivity in teasing can make it susceptible to misinterpretation (Kowalski, 2000; 2007; Kruger et al., 2006). The...