Matching Items (358)
Description
In this paper, optimal control routines are applied to an existing problem of electron state transfer to determine if spin information can successfully be moved across a chain of donor atoms in silicon. The additional spin degrees of freedom are introduced into the formulation of the problem as well as the control optimization algorithm. We find a timescale of transfer for spin quantum information across the chain fitting with a t > π/A and t > 2π/A transfer pulse time corresponding with rotation of states on the electron Bloch sphere where A is the electron-nuclear coupling constant. Introduction of a magnetic field weakens transfer
efficiencies at high field strengths and prohibits anti-aligned nuclear states from transferring. We also develop a rudimentary theoretical model based on simulated results and partially validate the characteristic transfer times for spin states. This model also establishes a framework for future work including the introduction of a magnetic field.
efficiencies at high field strengths and prohibits anti-aligned nuclear states from transferring. We also develop a rudimentary theoretical model based on simulated results and partially validate the characteristic transfer times for spin states. This model also establishes a framework for future work including the introduction of a magnetic field.
ContributorsMorgan, Eric Robert (Author) / Treacy, Michael (Thesis director) / Whaley, K. Birgitta (Committee member) / Greenman, Loren (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Department of Physics (Contributor)
Created2015-05
Description
The purpose of this paper was to assist companies involved in international/intercultural business negotiations establish an orderly, informed, prepared, and empowered negotiation team within the corporate structure. The paper introduces and reinforces the importance of a systematic rather than situational approach to intercultural negotiations and assists companies establish the infrastructure, team, team coordination and alignment, preparation for negotiations, and intercultural skills necessary to maximize their success. China was chosen as the hypothetical international opponent because of its importance to the world economy and the value to American companies of establishing a business presence there. It also presented a prime example of the complexity of negotiations that has been so deeply influenced by a 5,000-year-old culture. In order to validate other research materials, the experiences of three expatriates who have lived in China and worked as business consultants there were explored in interviews. Each presented disparate views on the role of culture in successful negotiations, which underscored the importance of preparation to the negotiation process. The result was an outline of how a company can assemble and incorporate a team of ever-improving professionals for any foray into the global marketplace, with specific recommendations for expanding into China. Although the primary focus is on China, the suggestions and principles contained in this paper can be applied to any company of any national origin attempting to enter the global marketplace. By following some or all of its suggestions, companies will be in a better position to participate effectively in international / intercultural negotiations.
ContributorsChen, Yutong (Author) / Goldman, Alan (Thesis director) / Frost, Donald (Committee member) / Thunderbird School of Global Management (Contributor) / W. P. Carey School of Business (Contributor) / Department of Management (Contributor) / Barrett, The Honors College (Contributor)
Created2015-12
Description
The epidemic of drug addiction continues to grow at an alarming rate and cocaine-related overdoses have increased by more than 33% over the last decade. Cocaine targets the mesolimbic reward system in the brain to produce the “high” felt when taking cocaine. There is currently no single cure for psychostimulant abuse, but researchers continue to find viable therapeutic options. Dopamine receptors have been a recent target for researchers. We tested a novel D3R-antagonist, SWR-5, with 905-fold D3/D2 selectivity, on addiction using a rat self- administration model and hypothesized that it would reduce motivation for cocaine. SWR-5 significantly reduced cocaine intake on a high-effort PR schedule at a dose of 10 mg/kg but did not affect sucrose intake. Also, SWR-5 did not affect either spontaneous or cocaine-induced locomotion. From our results, we concluded that SWR-5 affects motivation for cocaine, not sucrose, and does not produce adverse locomotor effects. Further research would include taking a behavioral economics approach to determine the cost/benefit ratio of taking the drug, as well as performing cue reinstatement tests to solidify whether SWR-5 plays a role in cocaine-seeking behavior.
ContributorsMokbel, Ayleen Marie Halim (Co-author) / Neisewander, Janet (Thesis director) / Sanabria, Federico (Committee member) / Vannan, Annika (Committee member) / School of International Letters and Cultures (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
In this experiment an Electrodynamic Ion Ring Trap was constructed and tested. Due to the nature of Electrostatic fields, the setup required an oscillating voltage source to stably trap the particles. It was built in a safe manner, The power supply was kept in a project box to avoid incidental contact, and was connected to a small copper wire in the shape of a ring. The maximum voltage that could be experienced via incidental contact was well within safe ranges a 0.3mA. Within minutes of its completion the trap was able to trap small Lycopodium powder spores mass of approximately 1.7*10^{-11}kg in clusters of 15-30 for long timescales. The oscillations of these spores were observed to be roughly 1.01mm at their maximum, and in an attempt to understand the dynamics of the Ion Trap, a concept called the pseudo-potential of the trap was used. This method proved fairly inaccurate, involving much estimation and using a static field estimation of 9.39*10^8 N\C and a charge estimate on the particles of ~1e, a maximum oscillation distance of 1.37m was calculated. Though the derived static field strength was not far off from the field strength required to achieve the correct oscillation distance (Percent error of 9.92%, the small discrepancy caused major calculation errors. The trap's intended purpose however was to eventually trap protein molecules for mapping via XFEL laser, and after its successful construction that goal is fairly achievable. The trap was also housed in a vacuum chamber so that it could be more effectively implemented with the XFEL.
ContributorsNicely, Ryan Joseph (Author) / Kirian, Richard (Thesis director) / Weiterstall, Uwe (Committee member) / School of Mathematical and Statistical Sciences (Contributor) / Department of Physics (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This duo thesis is an autoethnography of what it means to be Filipino-American in the United States. Being raised in varying backgrounds yet with the similarity of being Filipino, there are aspects of our lives that are simultaneously similar and different. The goal of this project is the exploration of one’s cultural, familial and personal identities and how they intersect with their individuality and sense of belonging. Through this project, we documented our experience as Filipinos in the United States and our travel back to the Philippines and showcased it through videos. It is a means to document our reflections on this project to share with the Filipino community and individuals who share the same sentiments.
ContributorsTamayo, Rianne Daisy (Author) / Onayan, Youla Tricia (Co-author) / O'Flaherty, Katherine (Thesis director) / Fedock, Rachel (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2024-05
Description
This duo thesis is an autoethnography of what it means to be Filipino-American in the United States. Being raised in varying backgrounds yet with the similarity of being Filipino, there are aspects of our lives that are simultaneously similar and different. The goal of this project is the exploration of one’s cultural, familial and personal identities and how they intersect with their individuality and sense of belonging. Through this project, we documented our experience as Filipinos in the United States and our travel back to the Philippines and showcased it through videos. It is a means to document our reflections on this project to share with the Filipino community and individuals who share the same sentiments.
ContributorsOnayan, Youla Tricia (Author) / Tamayo, Rianne Daisy (Co-author) / O'Flaherty, Katherine (Thesis director) / Fedock, Rachel (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2024-05
Description
The automated transcription of Greek manuscripts is a current research goal in the digital humanities. Pre-processing manuscript images is an important part of any computer based transcription pipeline. However, pre-processing for ancient manuscripts specifically has not been highly developed. The result of this project is a noiseless pre-processing method that keeps diacritics. Further, text line segmentation is automated for manuscripts without annotation.
ContributorsCostello, David (Author) / Bronowitz, Jason (Thesis director) / Mirguet, Francoise (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Department of Physics (Contributor)
Created2024-05
Description
The flute is a unique instrument for a multitude of reasons. Culturally, the flute has existed for centuries and spanned continents. Musically, it is unlike other woodwind instruments in that it requires no reed to produce sound. Physically, the acoustical properties of the flute follow that of an open organ pipe and there are numerous variables that can affect the flute's sound. By gaining a fundamental understanding of the history of the flute, the physics of music, and how a flute produces sound, we can begin to look at these variables, such as material, bore, and size, and understand the physics behind the flute and piccolo. This knowledge can then be applied to our own analysis of flute and piccolo playing to examine if these conclusions hold true.
ContributorsConnolly, Grace (Author) / Foy, Joseph (Thesis director) / Hannon, Mikaela (Committee member) / Barrett, The Honors College (Contributor) / Department of Physics (Contributor) / School of Social Transformation (Contributor)
Created2024-05