Matching Items (379)
Description
This research compares shifts in a SuperSpec titanium nitride (TiN) kinetic inductance detector's (KID's) resonant frequency with accepted models for other KIDs. SuperSpec, which is being developed at the University of Colorado Boulder, is an on-chip spectrometer designed with a multiplexed readout with multiple KIDs that is set up for a broadband transmission of these measurements. It is useful for detecting radiation in the mm and sub mm wavelengths which is significant since absorption and reemission of photons by dust causes radiation from distant objects to reach us in infrared and far-infrared bands. In preparation for testing, our team installed stages designed previously by Paul Abers and his group into our cryostat and designed and installed other parts necessary for the cryostat to be able to test devices on the 250 mK stage. This work included the design and construction of additional parts, a new setup for the wiring in the cryostat, the assembly, testing, and installation of several stainless steel coaxial cables for the measurements through the devices, and other cryogenic and low pressure considerations. The SuperSpec KID was successfully tested on this 250 mK stage thus confirming that the new setup is functional. Our results are in agreement with existing models which suggest that the breaking of cooper pairs in the detector's superconductor which occurs in response to temperature, optical load, and readout power will decrease the resonant frequencies. A negative linear relationship in our results appears, as expected, since the parameters are varied only slightly so that a linear approximation is appropriate. We compared the rate at which the resonant frequency responded to temperature and found it to be close to the expected value.
ContributorsDiaz, Heriberto Chacon (Author) / Mauskopf, Philip (Thesis director) / McCartney, Martha (Committee member) / Department of Physics (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Supernovae are vital to supplying necessary elements to forming bodies in our solar systems. This project studies the creation of a subset of these necessary elements, called short-lived radionuclides (SLRs). SLRs are isotopes with relatively short half-lives and can serve as heat sources for forming planetary bodies, and their traces can be used to date stellar events. Computational models of asymmetric supernovae provide opportunities to study the effect of explosion geometry on the SLR yields. We are most interested in the production of \iso{Al}{26}, \iso{Fe}{60}, and \iso{Ca}{41}, whose decayed products are found in our own solar system. To study the effect of explosion asymmetries in supernovae, we use TYCHO stellar evolution code, SNSHP smooth particle hydrodynamics code for 3D explosion simulations, Burn code for nucleosythesis post-processing, and Python code written to analyze the output of the post-processing code.
ContributorsJohnson, Charlotte (Author) / Young, Patrick (Thesis director) / Lunardini, Cecilia (Committee member) / Department of Physics (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
During the 1970's to 90's, scholars in the fields of Jewish Studies, anthropology and sociology (notably, Hellen Epstein, Larry Langer and Yosef Yerushalmi), developed the idea of generational trauma theory, when analyzing the trauma inflicted upon European Jewish populations during the Holocaust. Epstein argues that trauma is passed down from generation to generation, while Langer argues that the second generation interprets the trauma in their own way. Other important terms in trauma theory include liturgical time, sites of memory, historical trauma and the historical trauma response. Scholars who analyze American Indian communities, like Yellow Horse Brave Heart and Durran/Durran, readily took up this theory, applying it to the Native American experience. One area where this theory has been applied to is the Native American Boarding School experience. The purpose of this paper is to analyze the efficacy of applying the post-Holocaust trauma theory to the Native American boarding school experience. In order to determine the effectiveness of the boarding schools, one must analyze the boarding school experience, beginning at the philosophical underpinnings of the boarding school, and then discussing the impacts that the boarding schools had on the students and finally, the impact that this had on the second generation. However, this approach has a number of flaws, such as the differences between native communities and post-Holocaust, American, Jewish communities, as discussed in the Philosophy of American Indian Studies. The length of the boarding schools was also longer than the length of the Holocaust. The fact that Native Americans faced repeated trauma, in a way that post-Holocaust American Jews did not. The trauma also changed for both native peoples and post-Holocaust Jews, making it difficult for there to be a single response to trauma. The philosophical bases of the Holocaust and boarding schools were also different. The post-Holocaust generational trauma approach also has a number of applications to native peoples. This includes the psychological aspect of trauma. The use of terminology by native scholars. Native peoples also developed concepts like sites of memory and liturgical time. Finally, both the post-Holocaust Jewas and Native Americans have used trauma for political ends. The conclusion is that post-Holocaust generational trauma theory has some applications to native peoples, but the application is limited. A scholar must take into careful consideration the native peoples who they are working with.
ContributorsMongeau, Michael Philip (Author) / Benkert, Volker (Thesis director) / Riding In, James (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / American Indian Studies Program (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
Sigmund Freud's psychoanalytic theory proposes that the personality has three components, the id, superego, and ego. The id is concerned with pleasure and gain, the reason it is often identified as a human's animalistic side. Additionally, the id does not consider social rules as closely and is the uncensored portion of the personality. The superego is the id's opposite; the superego considers social expectations and pressures immensely, is more self-critical and moralizing. The ego mediates the id and superego, and is understood as the realistic expression of personality which considers both the "animal" and human. A Fractured Whole: A Collection of Short Stories, explores Freud's construction of human personality in both form and content. Within the collection are three sections, each with a different pair of characters. Within each section, the same scene is written in the three "modes" of the id, superego, and ego, as three separate stories. The fifteen stories comprising this collection address the substance of daily life: sexuality, body image, competition, among other topics, to consider how a single person can balance the desires for personal pleasure and to satisfy social expectations. Writing the same scene in three "modes" allows for the observation of how the characters attitudes and actions alter under the influence of different parts of their personalities.
ContributorsOtte, Aneka (Author) / Sturges, Robert (Thesis director) / Bryant, Jason (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / Department of English (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Since Dylan Roof, a white supremacist, shot and killed nine members of a black church in Charleston on June 17, 2015, Confederate symbols have stood at the center of much controversy across the United States. Although the Confederate battle flag remains the most obvious example, the debate took a particular form in Tennessee, centering on the image of General Nathan Bedford Forrest. Born in 1822 to a poor family, he left school early to work. Although his work in the slave trade made him a millionaire, his later participation in the massacre of over 300 black soldiers at Fort Pillow in 1864 during the Civil War and association with the Ku Klux Klan cemented his reputation as a violent racist. Yet, many white Tennesseans praised him as a hero and memorialized him. This thesis examines Nathan Bedford Forrest State Park in Benton County and Forrest Park, now Health Sciences Park, in Memphis to examine what characteristics denote a controversial memorial. Specifically, I focus on the physical form, the location, and the demographics of the area, investigating how these components work together to give rise to controversy or acceptance of the memorial's image. Physical representations greatly impact the ideas associated with the memorial while racial demographics affect whether or not Forrest's representation as a hero speaks true to modern interpretations and opinions.
ContributorsFish, Caroline Rose (Author) / Longley, Rodney (Thesis director) / Suk, Mina (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / School of Politics and Global Studies (Contributor) / School of International Letters and Cultures (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
We hypothesized that recurrent exposure to a temporal discounting task would habitize participants, so that they become insensitive to framing effects. Temporal discounting is a behavioral trend which describes how people discount the value of a reward dependent on the time until receipt. Participants completed a temporal discounting task weekly for five weeks, to promote formation of a habitual decision strategy. Concomitant with this, we expected that people would shift their decision process from a deliberate, goal-oriented approach that is sensitive to changes in reward outcomes and environmental context, to a simplified, automatic approach that minimizes cognitive effort. We expected that this shift in decision strategy would be evident in a reduced influence of contextual effects on choice outcomes. We tested this hypothesis by leveraging two framing effects \u2014 the date/delay effect and the decimal effect. Consistent with our hypothesis, we find that the date/delay effect is significant on week 1, shows significant changes in week 1 to week 5, and is no longer significant on week 5. The results for the decimal effects were not significant. We discuss these results with respect to the cognitive processes that underlie temporal discounting and self-control.
ContributorsSt Amand, Jesse Dean (Author) / McClure, Samuel (Thesis director) / Sanabria, Federico (Committee member) / School of Molecular Sciences (Contributor) / Department of Physics (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This thesis explores the intersection of religion, social class, and politics during the late nineteenth century in Imperial Germany. Specifically, the focus of this work is on the Workers' Association of Saint Paul's in Aachen and Burtscheid, a Catholic working-class organization in the 1870s located in the city of Aachen, a rapidly industrializing city in the majority Catholic Prussian Rhineland. This organization was the largest Catholic working-class association in Germany in the 1870s, reaching 5,000 members by the middle of the decade, and also espoused the politics of Christian Socialism. This thesis explores the intersection of the possibly competing social identities of these workers between being Catholics and workers. To start, the scholarly framework of studying society and politics in Imperial Germany is discussed, especially the concept of rigidly constructed social milieus into five groups, two of them being the Catholics and the working-class, and how this work may suggest a challenge to this concept. Next, the background information of how a Catholic working-class came into existence, as it was the product of simultaneous nineteenth century processes of industrialization and a religious revival among German Catholics. The Kulturkampf was the force that politicized Catholicism in Germany, as the persecution of Catholic institutions by Prussia forced Catholics into a social and political "ghetto." Then, the Association of St. Paul's itself is discussed. First, the workers espoused their Catholic identity and religious solidarity during a time of persecution, but also emphasized the Christian basis for their brand of Socialism. This lent into their identity as part of the working-class. While they steadfastly rejected the "godlessness" of Social Democracy, the Christian Socialists also shared many similar social and political goals. This intersection between identities eventually led to political conflict in Aachen throughout the 1870s with the mainstream, bourgeois Catholics of the city. To conclude, the legacy of Christian Socialism on modern Germany is discussed, as well as its contribution to the complex politics of Imperial Germany.
ContributorsHarkness, John Hosea (Author) / Benkert, Volker (Thesis director) / Holian, Anna (Committee member) / School of Politics and Global Studies (Contributor) / School of International Letters and Cultures (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
A problem of interest in theoretical physics is the issue of the evaporation of black holes via Hawking radiation subject to a fixed background. We approach this problem by considering an electromagnetic analogue, where we have substituted Hawking radiation with the Schwinger effect. We treat the case of massless QED in 1+1 dimensions with the path integral approach to quantum field theory, and discuss the resulting Feynman diagrams from our analysis. The results from this thesis may be useful to find a version of the Schwinger effect that can be solved exactly and perturbatively, as this version may provide insights to the gravitational problem of Hawking radiation.
ContributorsDhumuntarao, Aditya (Author) / Parikh, Maulik (Thesis director) / Davies, Paul C. W. (Committee member) / Department of Physics (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Abstract. The term "sex trafficking" can mean many different things, depending on who uses it. To some, it may be synonymous with prostitution. To others, it may equate to slavery. And some may find that sex trafficking differs from both slavery and prostitution. But I find that the term "sex trafficking" is used improperly when referring to phenomena that may not entail the violation of rights of any individual involved. For this reason, various definitions of "sex trafficking" may inappropriately conflate sex trafficking with prostitution. In this essay, I argue against such a conflation through supporting a rights-based approach of defining "sex trafficking," in which every instance of true sex trafficking necessitates a violation of someone's rights. First, I begin by laying the foundation of my discussion with definitions and various government and non-government uses of the term "sex trafficking." Then, I argue for the rights-based approach. I proceed to explore how the rights-based approach relates to consent, force, coercion, deception, and competence. Then, I compile my findings, synthesize a definition, and elaborate on a few questions regarding my definition. Using the term "sex trafficking" correctly, as I argue, means that we necessarily use the term in a context of a violation of rights.
ContributorsMiller, Isaac Jonathan (Author) / de Marneffe, Peter (Thesis director) / McGregor, Joan (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Popular Culture of today, particularly books and movies have begun to influence the way individ- uals and society as a whole, views specific concepts. In this case, the fairly recent phenomenon of the Sci- ence Fiction Drug Niche has produced significant thought among audiences as to both the benefits and costs of cognitive enhancers in our world. Through the use of both a thorough analysis of modern films and novels on the topic as well as focus groups of the average college students this study analyzes the influence that this niche has had on the perceptions that students have towards the use of such cognitive enhancements. Small groups of students were shown the same film: Limitless, and discussion after the film displayed the students thoughts and attitudes towards the ideas shown in the film. Limitless itself falls into this Science Fiction drug niche and discusses both benefits and harms of chemical cognitive enhancement. The study indicates that audiences have thought not only about the issues that may arise with the presence of cognitive enhancement in our world but also the possible benefits of this enhancement. The results go even further to preliminarily show that there are common thoughts that arise in such situations. These common ideas that arise show, at least on a very basic level, that the presence of these Science Fiction Drug-inspired works are influencing the way audiences perceive the use of cognitive enhancement as well as influencing what doubts, questions, hopes, and fears arise from these pharmaceuticals. This preliminary study could use further research to ana- lyze the effects of popular culture on perceptions of cognitive enhancement and pharmaceuticals to alter consciousness.
ContributorsSyed, Mariha Batool (Author) / Zachary, Gregg (Thesis director) / Hurlbut, Ben (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05