Second harmonic generation (SHG),
a nonlinear optical tool, was used to
characterize DNA bound through a
chemical linker to the flat surface of a
hemispherical lens. Contact angle
measurements were used to guarantee
that the chemical linker did not hydrolyze
under experimental conditions. SHG
experiments followed the effects of salt...
Cells are known to respond to external stimuli such as chemical, physical and mechanical cues from their microenvironments. In this work, we developed the technology to to complement the previously reported studies that deal with substrates' mechanical property by developing thin polydimethlysiloxane (PDMS) membrane microdevices using microfabrication technology. Typically, multiples...
In this dissertation I examine the relationship between voter turnout and legislative representation in the United States Congress. My main contention is that political elites react to electoral participation in formulating public policies. I posit that the institutional advantages of incumbency in the House of Representative reduces turnout in congressional...
My submission is a data dashboard that depicts global trends for new and total COVID-19 cases between Jan 01, 2020 and March 08, 2021. It contains two tabs (new and total cases) with three interactive visualizations. Two maps, an original and a log-scale-filled, show the number of new COVID-19 cases...
This final report contains information on years 6-7-8 (2004-2007) of TEA-21 funded projects designated A487, W420, and A212. The report was submitted by Morris E. Fine and Semyon Vaynman in 2007.
This manual describes use of a new hybrid autonomous crack and structural response monitoring (ACSM) system. It is designed as a low cost alternative to the research grade version employing SOMAT’s eDAQ data recording system. The concept is to combine a new field portable, 24 bit, 12 channel seismograph with...
In urban areas, an accurate evaluation of ground deformations from various construction activities requires one to properly consider both the probable ground strain level under expected working conditions and the recent stress history of the soil. For well-designed projects, the levels of ground strains typically are less than 0.5%, emphasizing...
Aluminum alloys strengthened with coherent (L1<sub>2</sub>), nanosize Al<sub>3</sub>Sc precipitates may be used as structural materials at elevated temperatures. They are creep resistant at 300°C and exhibit a threshold stress, below which creep is not measurable. Introducing ternary alloying additions, such as rare-earth elements (RE=Y, Dy, Er), that segregate within Al<sub>3</sub>Sc...
The macroscale mechanical and physical properties of materials are inherently linked to the underlying microstructure. Traditional continuum mechanics theories have focused on approximating the heterogeneous microstructure as a continuum, which is conducive to a partial differential equation mathematical description. Although this makes large scale simulation of material much more efficient...
This thesis presents results and analysis on a series of donor-bridge-acceptor (D-B-A) charge transfer systems in which we use time-resolved spectroscopy and magnetic resonance techniques to study the relationship of molecular structure to energy, charge, and spin transfer dynamics. We find that the sequence of events following the initial charge...
