Browsing Electronic Theses and Dissertations by Title
Now showing items 6435-6454 of 6747
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(2012-04-10)Department: Civil EngineeringThe research described herein was performed in an effort to determine how federal transportation expenditures benefit the freight industry. This study focused on two objectives: 1) determining relevant federal investments ...
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(2022-02-21)Department: AnthropologyThis dissertation explores how US activists involved in US Latin American Solidarity campaigns from the 1980s to the present developed a political consciousness of their own relationship to and role in influencing political ...
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(2021-03-31)Department: Cancer BiologyThe Wnt/b-catenin (canonical) signaling pathway is an evolutionarily conserved pathway that is critical for normal development, and misregulation of Wnt signaling can lead to diseases in humans. Many components of the Wnt ...
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(2012-01-26)Department: Interdisciplinary Materials ScienceThis dissertation focuses on the colloidal synthesis, and size-dependent optical & magnetic properties of several nanocrystals, such as EuX (X=O, S, Se, Te), Eu2O2S, and Te nanoparticles and nanorods. Significant Néel ...
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(2010-04-16)Department: Interdisciplinary Materials ScienceThe oxides of rare-earth elements (rare-earth sesquioxide: RE2O3) are known for their optical and dielectric properties. Europium oxide is known for characteristic red luminescence and gadolinium oxide has excellent ...
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(2012-03-31)Department: PhysicsI identified and used a large catalog of ultra-wide binaries to investigate observationally two related questions in low-mass star astrophysics: (1) What is the frequency and distribution of ultra-wide binary systems, and ...
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(2020-03-31)Department: ChemistryColloid quantum dots (QDs) are semiconductor nanocrystals that can be tuned to emit specific wavelengths of light based upon their size. Maintaining long-term brightness of QDs is crucial towards their applications. Achieving ...
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(2008-11-18)Department: PhysicsSince the discovery of giant magnetoresistance (GMR), the spin of the electron has attracted significant interest in the field of microelectronics. Spintronics, which involves manipulating both quantum spin states of ...
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(2008-07-27)Department: PhysicsThis dissertation is mainly focused on the femtosecond pump probe spectroscopy of the (6, 5) single wall carbon nanotubes (SWNTs). There are three advantages in this experiment, first, we upgrade the optical parametric ...
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(2020-10-28)Department: PhysicsIn this dissertation we seek to present a comprehensive fluence and wavelength dependent ultrafast pump-probe transmission study of graphene supported on a soda-lime glass substrate for a range of pump fluences that enable ...
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(2014-11-25)Department: Interdisciplinary Materials ScienceThree previously unreported photo-carrier relaxation pathways are presented and discussed in GaAs-based systems. In bulk GaAs, a transient bleach of the spin-split exciton transition 1s->2p is reported following photo-excitation ...
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(2010-01-21)Department: ChemistryDue to the declining availability of fossil-fuels and the adverse environmental affects of the same, the world has begun a move to more efficient and longer-lasting solid-state lighting. Ultrasmall CdSe nanocrystals ...
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(2018-03-30)Department: Interdisciplinary Materials ScienceZinc oxide is a wide band gap (3.37 eV) semiconductor with a high exciton binding energy (60 meV), of interest for optoelectronic applications due to both its ultraviolet (UV) and visible emissions. This dissertation shows ...
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(2021-03-06)Department: ChemistryUmpolung amide synthesis (UmAS) exploits the unique properties of an α-halo nitroalkane in its reaction with an amine to produce an amide. The “umpolung” moniker reflects its paradigm-breaking C–N bond formation on the ...
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(2014-07-22)Department: ChemistryTraditional amide synthesis employs a nucleophilic amine, which is reacted with an electrophilic activated carboxylic acid or carboxylic acid surrogate. Recently, colleagues in the Johnston lab introduced an unconventional ...
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(2012-12-03)Department: ChemistryUMPOLUNG AMIDE SYNTHESIS: APPLICATIONS IN ENANTIOSELECTIVE PEPTIDE SYNTHESISDAWN M. MAKLEYDissertation under the direction of Professor Jeffrey N. JohnstonThe development and application of the novel Umpolung Amide Synthesis ...
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(2021-06-15)Department: FrenchIn this dissertation, close readings of twenty-first century texts by Annie Ernaux, Nina Bouraoui, Maïssa Bey and Chloé Delaume expose the role of language and the possibilities offered by autofictional space in the ...
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(2021-03-24)Department: SociologyUnequal access to important resources in the urban built environment has been a significant social problem under study by social scientists. Guided by an environmental justice framework, this mixed-method dissertation takes ...
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(2010-03-18)Department: Cell and Developmental BiologyCoordinated movement depends on specific connections between neurons, yet mechanisms that govern synaptic specificity are poorly understood. The simple, well-defined motor circuit of the nematode, C. elegans provides an ...
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(2017-09-08)Department: Civil EngineeringProbabilistic performance assessment evaluates a system’s capability to accomplish the required functions under uncertainty. The results of probabilistic performance assessment can be used to support decision making such ...