Now showing items 951-959 of 959
Regulating Gene Expression Through DNA Mechanics: Tightly Looped DNA Represses Transcription.
(2010)
It is now widely accepted that the mechanical state of DNA can play a major role in regulating the activity of RNA polymerase (RNAP). Not only have the global levels of supercoiling been shown to regulate transcription, ...
Topics in Networks: Community Detection, Random Graphs, and Network Epidemiology.
(2012)
In this dissertation, we present research on several topics in networks including community detection, random graphs, and network epidemiology.
Traditional stochastic blockmodels may produce inaccurate fits to complex ...
Two-Dimensional Electronic Spectroscopy of the Photosystem II D1D2-cyt.b559 Reaction Center Complex.
(2010)
Two-dimensional electronic spectroscopy (2DES) is a powerful new technique for examining the electronic and vibronic couplings and dynamics of chemical, semiconductor, and biological samples. We present several technical ...
Measurement of the Inclusive Forward-Backward tt Production Asymmetry and its Rapidity Dependence dAfb/d(y).
(2010)
Early measurements of a large forward-background asymmetry at the CDF and D0 experiments at Fermilab have generated much recent interest, but were hampered by large uncertainties. We present here a new measurement of the ...
New Models of Dark Matter and Prospects for Measurements.
(2011)
This thesis covers a range of topics in model building and measurements with an
interest in solving the dark matter problem.
We begin with a model where the dark matter properties today are different than
they were at the ...
Simple Processes in Complex Places.
(2010)
Identical stochastic processes in different topologies can exhibit qualitatively distinct behavior. In complex environments, such as social or neuronal networks, rich structural details can lead to very different outcomes ...
Dynamics of the Top Quark Beyond the Standard Model.
(2011)
The top quark, the heaviest fermion that has been observed, is an important particle in understanding the origin of electroweak symmetry breaking. This thesis is about various collider phenomenologies of the top quark and ...
Plume-Surface Interactions due to Spacecraft Landings and The Discovery of Water on Mars.
(2010)
Pulsed supersonic jets or rocket plumes have different surface flow physics than steady jets, in particular in tenuous atmospheres such as that of Mars where jets are collimated over large distances compared to their ...
Nonlinear Optical Enhancement from Aggregate and Ensemble Effects in Organic Systems.
(2011)
Organic optoelectronics provide several advantages over traditional Si based systems. These advantages are typically cost, ease of manufacturing, and environmental impact. One area of particular interest in the field of ...