42 research outputs found
C. G. Jung and the Dead:Visions, Active Imagination and the Unconscious Terrain
No full textC. G. Jung and the Dead: Visions, Active Imagination and the Unconscious Terrain offers an in-depth look at Jung’s encounters with the dead, moving beyond a symbolic understanding to consider these figures a literal presence in the psyche. Stephani L. Stephens explores Jung’s personal experiences, demonstrating his skill at visioning in all its forms as well as detailing the nature of the dead.This unique study is the first to follow the narrative thread of the dead from Memories, Dreams, Reflections into The Red Book, assessing Jung’s thoughts on their presence, his obligations to them, and their role in his psychological model. It offers the opportunity to examine this previously neglected theme unfolding during Jung’s period of intense confrontation with the unconscious, and to understand active imagination as Jung’s principle method of managing that unconscious content. As well as detailed analysis of Jung’s own work, the book includes a timeline of key events and case material.C. G. Jung and the Dead will offer academics and students of Jungian and post-Jungian studies, the history of psychology, Western esoteric history and gnostic and visionary traditions a new perspective on Jung’s work. It will also be of great interest to Jungian analysts and psychotherapists, analytical psychologists and practitioners of other psychological disciplines interested in Jungian ideas
Martial satisfication among pre-marital cohabiting couples and non pre-marital cohabiting couples, 2007
No full textThis study examined whether a difference in marital satisfaction existed among pre-marital cohabitating couples and non pre-marital cohabitating couples. Twenty of the couples had cohabitated and twenty had never cohabitated prior to their marriage. The forty couples were from the Atlanta metropolitan and LaGrange, Georgia areas and were selected for the study utilizing a non probability/purposive snowball sampling technique. The couples were referred by previous participants and were screened in order to ensure that all eligibility requirements were met. The couples' ages ranged from 20-45 years and all couples were involved in their first marriage. The Marital Satisfaction Inventory Revised (MSI-R) was administered to all forty couples in order to ascertain differences in marital satisfaction and to determine an interaction effect of gender and cohabitation status. The MSI-R is a 150 question, true-false inventory which measures marital satisfaction by testing nine marital scales and two validity scales. The findings of the study indicated that there were significant differences in marital satisfaction among premarital cohabitating and non pre-marital cohabitating husbands and wives. The significance between the two groups were Aggression, Family History of Distress, Time Together, Role Orientation, and Disagreement about Finances
Confronting Convention: Discourse and Innovation in Contemporary Native American Women's Theatre
Full text linkabstract: In this dissertation, I focus on a subset of Native American theatre, one that concentrates on peoples of mixed heritages and the place(s) between worlds that they inhabit. As it is an emergent field of research, one goal of this project is to illuminate its range and depth through an examination of three specific points of focus - plays by Elvira and Hortencia Colorado (Chichimec Otomí/México/US), who create theatre together; Diane Glancy (Cherokee/US); and Marie Clements (Métis/Canada). These plays explore some of the possibilities of (hi)story, culture, and language within the theatrical realm across Turtle Island (North America). I believe the playwrights' positionalities in the liminal space between Native and non-Native realms afford these playwrights a unique ability to facilitate cross-cultural dialogues through recentering Native stories and methodologies. I examine the theatrical works of this select group of mixed heritage playwrights, while focusing on how they open up dialogue(s) between cultures, the larger cultural discourses with which they engage, and their innovations in creating these dialogues. While each playwright features specific mixed heritage characters in certain plays, the focus is generally on the subject matter - themes central to current Native and mixed heritage daily realities. I concentrate on where they engage in cross-cultural discourses and innovations; while there are some common themes across the dissertation, the specific points of analysis are exclusive to each chapter. I employ an interdisciplinary approach, which includes theories from theatre and performance studies, indigenous knowledge systems, comparative literary studies, rhetoric, and cultural studies.Dissertation/ThesisPh.D. Theatre 201
Continuum breakdown assessment and state-based transport modeling for non-equilibrium hypersonic flows
No full textThe work presented in this dissertation is motivated by the need for improving the fidelity of physical and chemical models used for predicting flowfield properties during hypersonic (re)entry of space vehicles into planetary atmospheres. Commonly employed numerical approaches for simulating the thermal and chemical non-equilibrium encountered in these high speed flows are multi-temperature computational fluid dynamics (CFD), direct simulation Monte Carlo (DSMC), and hybrid CFD/DSMC solvers that capitalize on the advantages of both methodologies. Improving the kinetics and transport models used in these solution techniques as well as developing accurate reduced order frameworks allow for reliable yet efficient estimation of flowfield parameters, thus optimizing thermal protection system (TPS) design.
Informed by these objectives, the first aspect of this work is directed towards the advancement of hybrid CFD/DSMC solvers. This involves formulating `breakdown parameters' that are used to identify locations where the continuum assumption fails within a hypersonic, chemically reacting flowfield, necessitating a transition from CFD to DSMC within these non-continuum zones. The breakdown parameter formulation is then extended to the rovibrationally resolved and reduced order state-to-state (StS) frameworks. However, in order to perform a continuum breakdown assessment within these rovibrationally resolved and reduced order StS frameworks, a consistent transport methodology is required. Therefore, the second aspect of this dissertation aims to: (i) develop a rovibrationally resolved transport methodology and compute vibrationally as well as rovibrationally resolved transport collision integrals for the O+O2 (atom-diatom) system; (ii) develop a reduced order/coarse-grained StS transport methodology. The generalized Chapman-Enskog (GCE) approach serves as the primary underlying principle of this work.
The first aspect of this dissertation involves the assessment of continuum breakdown within flowfields computed using multi-temperature CFD solvers. Using the `mechanism-based' GCE breakdown parameters developed for chemically reacting flows, locations of non-continuum along with the physical processes that lead to breakdown - translational, rotational and vibrational heat fluxes, mass diffusion fluxes and stress tensor components - are identified within the forebody region of a Mach 24 airflow past a sphere. Regions of non-continuum were observed in the shock, and close to the sphere surface. The flowfield near the surface was found to be characterized by sharp species concentration gradients due to gas-phase and surface reactions. Thus, chemical reactions were found to indirectly distort the underlying equilibrium distribution function, providing a new pathway to continuum breakdown as indicated by the GCE species-wise diffusion breakdown parameter.
Next, a `species-wise' perturbation parameter based on the 2-norm in Hilbert space of the first order GCE perturbation expression is developed for assessing the extent to which the underlying equilibrium Maxwell-Boltzmann (MB) distribution of a given species has been perturbed. All transport mechanisms that can lead to distortion of the species-wise equilibrium MB distribution function are simultaneously incorporated into this perturbation parameter that can be computed for each species as an indication of local non-continuum. This parameter, along with the mechanism based GCE breakdown parameters were used to assess continuum breakdown in the forebody and wake region of a cylinder subjected to hypersonic flow. Additionally, the influence of altitude, freestream velocity and cylinder surface chemistry on continuum breakdown was analyzed. Regions of continuum breakdown were observed in the shock, boundary layer, and the wake. Most notably, the surface chemistry at the cylinder wall forebody led to the formation of breakdown regions in the wake that were detached from the cylinder surface. It was also found that the rigorously formulated species-wise perturbation parameter captured larger regions of local non-continuum than the traditionally used phenomenological gradient length local Knudsen number. Next, the GCE breakdown parameter formulations are extended to the rovibrationally resolved and reduced order StS system, highlighting the need for transport models for these frameworks.
As a first step towards improving transport models employed in CFD, vibrationally resolved transport collisional quantities including scattering angles, cross-sections and collision integrals are computed for the O+O2 system by extending conventional `non-trajectory based' calculation methods to include StS effects. These calculations were performed using the set of nine ab initio potential energy surfaces (PES) by Varga et al., specifically constructed to capture high energy collisions that dominate hypersonic flows. The `surface-averaged' state-based collision integral values computed from the Varga et al. set of surfaces generally increased with vibrational excitation for temperatures up to 6000 K, and decreased with vibrational excitation at higher temperatures. Additionally, due to this non-trivial dependence of the collision integrals on the vibrational state of O2, state-of-the-art empirical models were found to be unable to correctly estimate vibrational state-based collision integrals. Differences as high as 80 % in StS collision integral values were obtained between the model predictions and those computed directly from the PES.
Next, rovibrational transport cross-sections and collision integrals are computed for the O+O2 system by carrying out `trajectory-based' calculations that incorporate dynamical details of the collision process. It was found that molecular rotation can influence the collision integral values by ~30 %, depending on the vibrational state of the molecule and the gas temperature. Further, comparison with the vibrationally resolved collision integrals calculated earlier revealed that conventional `non-trajectory based' calculations for an atom-diatom system that employ a number of simplifying assumptions tend to overestimate StS collision integral values.
With the view to decrease the computational expense associated with full StS-CFD calculations, physics-based reduced order/coarse-grained models are constructed by grouping together rovibrational levels connected by processes occurring on similar timescales. As part of this dissertation, a framework for the calculation of transport coefficients for such reduced order models is developed. Finally, the `group/bin collision integrals' for the O+O2 system are calculated for use in reduced order StS-CFD calculations.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-12-01The student, Sharanya Subramaniam, accepted the attached license on 2020-07-25 at 21:00.The student, Sharanya Subramaniam, submitted this Dissertation for approval on 2020-07-25 at 21:02.This Dissertation was approved for publication on 2020-08-05 at 14:01.DSpace SAF Submission Ingestion Package generated from Vireo submission #15757 on 2021-03-04 at 16:29:47Made available in DSpace on 2021-03-05T21:45:03Z (GMT). No. of bitstreams: 2
SUBRAMANIAM-DISSERTATION-2020.pdf: 53186091 bytes, checksum: 9fea357e92d7608b2de5ddd1e66bb470 (MD5)
LICENSE.txt: 4217 bytes, checksum: c9f7bd1315a115a5257a47dc79c8f884 (MD5)
Previous issue date: 2020-08-05Embargo set by: Seth Robbins for item 117254
Lift date: 2023-03-05T21:45:47Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 117254
Lift date: 2023-03-05T21:47:41Z
Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimite
El monasterio de Santa María de Ripoll: escuela y literatura en torno al abad Oliba (primera mitad del siglo XI). Edición de textos
Full text linkThe rigorous critical edition of the epistolar anthology copied in ms. Paris, BNF lat. 2858 and the unpublished Translatio Sancti Stephani aim to contribute to the knowledge of the literaryes ideas prevailing at Ripoll at the time of abbot Oliba, and it want especially enhance that the elaboration of these ideas has to be seen as an evolution of previous rhetorical models.La edición filológicamente cuidada de la antología epistolar copiada al ms. París, BNF lat. 2858, y de la inédita Translatio sancti Stephani pretende contribuir al conocimiento de las ideas literarias presentes en Ripoll en la época del abadiado de Oliba, considerando sobre todo que la elaboración de estas ideas se tiene que ver como una evolución con respecto a modelos retóricos precedentes
Résultats taxonomiques de l´éxpédition Bryotrop au Zaire et Rwanda : 30., bryophytes épiphylles (récoltes de E. Fischer)
No full textThe author provides an annotated list of epiphyllous bryophytes collected by Dr E. Fischer in Kivu and Rwanda. Most of them belong to the Lejeuneaceae, but some other hepatics and mosses are also represented. A total of 101 hepatics and 17 mosses are reported. In this very important material, 13 new species and 2 varieties for science or for Africa were found: Cololejeunea cardiocapioides , C. fischerii , C. heterolobula , C. kahuziensis , C. lobulolineata , C. pseudo-obliqua , C. pseudo-pusilla , C. sphaerocarpa , C. tenui-parietata , C. tribracteata , Diplasiolejeunea cyanguguensis , C. gradsteinii , Harpalejeunea fischerii , Cololejeunea harrisii Pócs var. magna, and Drepanolejeunea symoensii (Vanden Berghen) Grolle var. minor. Some observations and ideas are given for Cheilolejeunea, in preparation for a future monograph of the genus in Africa and the Mascareno-Malagassy region. Drepanolejeunea , based on the author’s analysis is relatively depauperate in Africa (where some of the species are South East Asian taxa). The study of the genus was complicated because of the use of perianth characters in taxonomical delimitation. However, perianths are seldom encountered and are very variable. In Cololejeunea , the author builds on his earlier works on the genus in different regions and particularly in Madagascar. Some taxa were insufficiently defined and the author tries to separate the different species. The application of subgenera in Cololejeunea remains difficult. For example, C. platyneura is a member of the subgenus Taeniolejeunea, but may be confused with members of subg. Cololejeunea
Travails in limbo - an ethical and aesthetic investigation into new approaches in the presentation of Theatre for Young Audiences
No full textIncludes bibliographica references (leaves 34-40).This research sought to investigate new aesthetic approaches in the creation of feminist Theatre for Young Audiences (TYA), specifically for early adolescent girls, through two collaborative workshop processes designed to be ethical and respectful of the participants' contribution. The parallels between the research into a new aesthetic for TYA and current trends in Applied Theatre practice led the researcher to shift focus into self-study and a critique of practice to enhance self-reflexive praxis, which strives to be ethical. Issues surrounding representation took precedence in an attempt to speak to the lived experiences of the early adolescent South African girl. The difficulties in the process resulted in an inequitable relationship between the researcher and the participants who were unable to meet the criteria for successful theatre making without the researcher's facilitation
ELUCIDATING THE DYNAMICS OF ACETYLECE IN THE ENERGY REGION
No full text E. Abramson, et. al., J. Chem. Phys., 83, 453 (1985). K. Yamanouchi, et. al., J. Chem. Phys. 95, 6330 (1991). B.C. Smith and J.S. Winn, J. Chem. Phys. 94, 4120 (1991).Author Institution: Department of Chemistry, George R. Harrison Spectroscopy Laboratory; Department of Chemistry and George R.Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology; Department of Pure and Applied Sciences, The University of TokyoIn low resolution () Dispersed Fluorescence (DF) spectra of acetylene from and levels of , the expected Franck-Condon (FC) bright states are progressions in (``CC stretch) and (Irans-bend). It was hypothesized that two additional progressions prominent in the DF spectrum were either built on excited (sym, ``CH"""" stretch), possibly FC bright due to the slight elongation of the CH bond in the A state, or on even quanta of appearing via a strong but previously undetected \DeltaV_{4}^{\prime\prime} = V_{5}^{\prime\prime}= \pm2 Darling-Dennison (DD) resonance. Either assignment was plausible because In high resolution () Stimulated Emission Pumping (SEP) spectra of acetylene from the 2^{\prime} level of the state to the region of the state, the observation of two more levels than levels proves that not only is the DD assignment correct but, a well characterized \DeltaV_{3}^{\prime\prime} (antisym ``CH” stretch)=- Fermi hasáallowed ( to borrow intensity from (0,1,0,6,2) which in turn borrowed its intensity from the FC bright (0,1,0,8,0)."
Evaluation of the precision and accuracy of two laser scanners from the Universidad Distrital using regular geometric pieces
No full textEn la siguiente investigación se aborda la evaluación de dos escáneres láser ubicados en la Facultad Tecnológica de la Universidad Distrital, los cuales serán estimados en términos de precisión y exactitud a partir de la medición de piezas geométricas regulares. Con el objetivo de evaluar cuál es el escáner más conveniente para la medición de cada tipo de pieza y observar cual servirá mejor para las aplicaciones en ingeniería mecánica dentro de la universidad, se propone realizar un diseño experimental a partir de tres tipos de piezas geométricas (cubo, semiesfera, pirámide) que serán medidas por cada uno de los escáneres. Los datos obtenidos se analizarán mediante las gráficas de superficie de respuesta arrojadas en el diseño experimental, para evaluar las mediciones realizadas por cada dispositivo. Para alcanzar este objetivo, se seguirá una metodología rigurosa que incluye la definición de criterios de evaluación específicos, así como los requisitos y limitaciones para las mediciones. Se implementarán técnicas de análisis estadístico para comparar los resultados obtenidos por cada escáner, evaluando su viabilidad técnica y funcional. En simultáneo, se desarrollará un plan detallado de la configuración experimental, asegurando condiciones de prueba controladas para minimizar variables externas. Se abordarán aspectos teóricos y prácticos de metrología y análisis de datos para garantizar la exactitud y precisión de los resultados. Esto implica la integración de métodos avanzados de análisis estadístico, como el uso del software Design Expert el cual permitirá evaluar la repetibilidad de las mediciones, identificando variaciones y posibles errores sistemáticos en los escáneres. Finalmente, se establecerán métricas claras de evaluación del desempeño de cada escáner láser, tanto en términos técnicos como económicos. Se llevará a cabo una recopilación y análisis de datos sobre la precisión y exactitud de las mediciones, considerando factores como el tiempo de operación y los costos asociados. Estos resultados servirán como base para la selección del escáner óptimo, así como para futuras investigaciones y mejoras en la tecnología de escaneo láser dentro de la universidad. Los resultados de este estudio no solo aportarán conocimiento valioso para la industria de la ingeniería mecánica, sino que también ofrecerán una guía práctica para la selección de tecnologías de escaneo láser, contribuyendo a la optimización de procesos de medición y control de calidad dentro de los entornos académicos.The following research addresses the evaluation of two laser scanners located at the Technological Faculty of the Universidad Distrital, which will be estimated in terms of precision and accuracy from the measurement of regular geometric pieces. In order to evaluate which is the most convenient scanner for the measurement of each type of piece and to observe which will serve best for mechanical engineering applications within the university, it is proposed to carry out an experimental design based on three types of geometric pieces (cube, hemisphere, pyramid) that will be measured by each of the scanners. The data obtained will be analyzed using the response surface graphs provided in the experimental design, to evaluate the measurements made by each device. To achieve this objective, a rigorous methodology will be followed that includes the definition of specific evaluation criteria, as well as the requirements and limitations for the measurements. Statistical analysis techniques will be implemented to compare the results obtained by each scanner, evaluating its technical and functional viability. At the same time, a detailed plan of the experimental configuration will be developed, ensuring controlled test conditions to minimize external variables. Theoretical and practical aspects of metrology and data analysis will be addressed to ensure the accuracy and precision of the results. This involves the integration of advanced statistical analysis methods, such as the use of Design Expert software, which will allow the evaluation of the repeatability of measurements, identifying variations and possible systematic errors in the scanners. Finally, clear metrics for evaluating the performance of each laser scanner will be established, both in technical and economic terms. Data collection and analysis will be carried out on the precision and accuracy of the measurements, considering factors such as operation time and associated costs. These results will serve as a basis for the selection of the optimal scanner, as well as for future research and improvements in laser scanning technology within the university. The results of this study will not only provide valuable knowledge for the mechanical engineering industry, but will also offer practical guidance for the selection of laser scanning technologies, contributing to the optimization of measurement and quality control processes within academic environments
Climate and demography dictate the strength of predator-prey overlap in a subarctic marine ecosystem
No full textThere is growing evidence that climate and anthropogenic influences on marine ecosystems are largely manifested by changes in species spatial dynamics. However, less is known about how shifts in species distributions might alter predatorprey overlap and the dynamics of prey populations. We developed a general approach to quantify species spatial overlap and identify the biotic and abiotic variables that dictate the strength of overlap. We used this method to test the hypothesis that population abundance and temperature have a synergistic effect on the spatial overlap of arrowtooth flounder (predator) and juvenile Alaska walleye pollock (prey, age-1) in the eastern Bering Sea. Our analyses indicate that (1) flounder abundance and temperature are key variables dictating the strength of flounder and pollock overlap, (2) changes in the magnitude of overlap may be largely driven by density-dependent habitat selection of flounder, and (3) species overlap is negatively correlated to juvenile pollock recruitment when flounder biomass is high. Overall, our findings suggest that continued increases in flounder abundance coupled with the predicted long-term warming of ocean temperatures could have important implications for the predator-prey dynamics of arrowtooth flounder and juvenile pollock. The approach used in this study is valuable for identifying potential consequences of climate variability and exploitation on species spatial dynamics and interactions in many marine ecosystems.
Copyright: 2013 Hunsicker et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credite
