Wood-derived ceramics and composites have been of interest in recent years due to their unique microstructures, which lead to tailorable properties. The porosity and pore size distribution of each wood type is different, which yields variations in properties in the resultant materials. The thermal properties of silicon carbide ceramics and...
"I Love You": Coercion and Consent in Sexual Relations in Postapartheid South Africa Judith L. Singleton This dissertation is an ethnographic study which explores and documents several discourses and practices surrounding sexual coercion and consent in the black South African township of Mpophomeni. I trace and examine discourses and practices...
To increase the butanol titers and selectivity in <em>Clostridium acetobutylicum</em> we replaced the promoter of the alcohol/aldehyde dehydrogenase (<em>aad</em>) gene with the phosphotranbutyrylase (<em>ptb</em>) promoter and combined this with CoAT downregulation to minimize acetone production. This led to early production of high alcohol (butanol plus ethanol) titers and overall solvent...
This dissertation project is one of the first to explicitly study the theoretical and empirical relationship between public opinion and the policies of unelected administrative agencies in the United States. This research addresses two important questions: (1) given the absence of a direct electoral connection between bureaucrats and the public,...
This thesis focuses on the design of hybrid organic materials comprising polymers and small molecules for biodiagnostic and electronic applications. Specifically, the electrochemical and fluorescent signaling properties of terthiophene-functionalized polymers are combined with the enhanced recognition properties of DNA hybrid materials, culminating in the development of a "loaded" probe for...
π-Conjugated oligomeric and polymeric semiconductors have been the focus of intense research over the past few decades as alternatives to inorganic semiconductors for low-cost electronic applications such as organic field-effect transistors (OFETs). These materials enable vapor- or solution-phase fabrication of large-area, light-weight electronic devices, and are compatible with plastic substrates...
Spinal cord injury causes devastating and frequently irreversible loss of neurological function. Although injured central nervous system neurons have the intrinsic ability to regenerate, the environment in the damaged spinal cord is non-permissive. The goal of this thesis was to explore the cellular and molecular mechanisms that limit recovery after...
Substance abuse is one of the most critical public health problems affecting juvenile detainees. Previous research suggests that a significant proportion of juvenile detainees with substance use disorders do not receive treatment prior to or during detention. Using data from the Northwestern Juvenile Project, a large-scale longitudinal study of juvenile...
Though more serious during the economic reform than in Mao-era, corruption has not totally got out of hand of the Chinese Communist Party (CCP). It is not too rampant to control and its destructive effects appear to have been limited from impeding the economic growth. To study the "resilience" that...
In the last half decade, America has expanded educational opportunities and experimented with a variety of educational reforms in an effort to reduce educational inequality. The first part of this dissertation examines the effectiveness of two major education policies aim to reduce educational inequality. Chapter 1 examines whether the expansion...