cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25549/usctheses-c3-639389
title: Particle‐in‐cell simulations of plasma interactions with asteroidal and lunar surfaces

description: Motivated by the lack of knowledge about plasma interactions with asteroidal and lunar surfaces, we extended a legacy immersed‐finite‐element particle‐in‐cell (IFE‐PIC) simulation package to perform first‐principle‐based kinetic simulations of plasmas interacting with realistic‐shaped surfaces. ❧ A customized surface of arbitrary geometries described by an algebraic equation z = z(x, y) was introduced to the library of the IFE‐PIC package capable of modeling rugged and realistic surface topographies. A series of test cases were selected to validate all the key components of the IFE‐PIC package with the new‐added geometry, for both homogeneous and non‐homogeneous solvers. Surface charging was accurately resolved which is one of the key physical phenomenon associated with plasma‐surface interactions. ❧ The validated IFE‐PIC package was employed to simulate plasma interactions with both asteroidal and lunar surfaces, providing numerical solutions of plasma environments, electrostatic fields, and effects of the electric field on the levitation of charged dust grains. ❧ For the simulations of plasma interactions at asteroids, different sizes and structures of asteroids under different plasma environments are considered. The results imply that: • The presence of the photoemissions significantly affects the surface charging in the sunlit regions, which indicates that strong differential charging may be developed near terminator regions; • A consolidated core inside the asteroid does not significantly affect the plasma environment or surface charging. ❧ For plasma interactions with the lunar surface, simulations were performed for a local rugged surface topography in the terminator regions for a variety of plasma environments. Three different plasma conditions (solar wind average, solar wind low, and magnetosheath plasma) are considered for two Sun elevation angles (0° and 5°). The plasma environments and electrostatic fields near the surface are resolved and their effects on the charged dust grains are discussed. The results indicate that: • The plasma wake caused by the rugged local surface will lead to differential charging of the lunar surface; • A higher Sun elevation angle will make the surface potential less negative as a result of combined effects of impacting ions and photoemissions; • Different charging models for charged dust grains lead to significantly different net accelerations of those grains. The net accelerations from the layered‐dust charging model are about two orders of magnitude smaller than those of the single‐dust model. ❧ This study provides knowledge of the plasma environments and electrostatic field information for future exploration missions at asteroidal and lunar surfaces.
DOI: 10.25549/usctheses-c3-160531
title: Page 13
DOI: 10.25549/usctheses-c3-160536
title: Page 18
DOI: 10.25549/usctheses-c3-170639
title: Page 129
DOI: 10.25549/usctheses-c3-160577
title: Page 59
DOI: 10.25549/usctheses-c3-170651
title: Page 141
DOI: 10.25549/usctheses-c3-176800
title: Page 18
DOI: 10.25549/usctheses-c3-177075
title: Page 80
DOI: 10.25549/usctheses-c3-200536
title: Models for soft errors in low-level caches

description: Benchmarking the FIT (failures in time of 1E9 hours) rates of caches due to soft errors is critical to evaluate the relative merits of various soft-error protection schemes available. Since protection has implications for power, energy and performance, it is desirable to avoid over provisioning. The semiconductor industry expects that one single event upset (SEU) will cause spatial multi-bit upsets (MBUs) more frequently in the near future so that, by the year 2016, all SEUs will likely to be spatial MBUs rather than single bit upsets (SBUs). This new trend contradicts what has been assumed until now for modeling, benchmarking and evaluating the soft-error reliability of memory structures. No existing framework can evaluate the realistic impact of multiple SBUs as well as spatial MBUs on memory structures. ❧ In this dissertation, we develop novel soft-error reliability benchmarking models and frameworks that address the complex scenarios produced collectively by SBUs and MBUs, in the context of large, low-level caches. First, we introduce a reliability benchmarking framework called PARMA (precise analytical reliability model for architecture). PARMA is a rigorous analytical framework that accurately accounts for multiple SBUs over time to measure the failure rate under any protection scheme. Second, we develop a reliability evaluation framework called MACAU (a Markov model for reliability evaluations of caches under single-bit and multi-bit upsets). MACAU addresses the overlapping effects of SBUs and spatial MBUs over time, to benchmark caches protected by various codes. Additionally MACAU is general enough to compute the intrinsic MTTFs (mean time to failure) of scrubbed caches. Finally, a novel reliability-aware sampling method to accelerate model-based reliability simulations is introduced and evaluated. This sampling technique solves the significant simulation slowdown that all model-based reliability benchmarking frameworks, including PARMA, MACAU, and AVF (Architectural Vulnerability Factor) analysis suffer from. The sampling accuracy is guaranteed by statistically controlling the FIT (Failures-In-Time) estimation error using a profiling technique. The PARMA or MACAU frameworks integrated with the reliability-aware sampling method are unique and invaluable tools for designers to evaluate and design reliable chips efficiently.
DOI: 10.25549/usctheses-c3-214215
title: Prosthetic vision in blind human patients: predicting the percepts of epiretinal stimulation

description: Over the last 8 years it has been shown that an implantable retinal prosthesis can partially restore visual capabilities to blind humans. With current electrode arrays it is only possible to stimulate groups of cells rather than individual single cells with spatio-temporal precision. While artificial vision from a retinal prosthesis is unable to completely replicate the neural response patterns of normal vision, by stimulating groups of cells with electrodes patients see electrically elicited visual percepts. Thus this work will focus mainly on the form of percepts created with single electrodes in a prosthesis given certain varying stimulation parameters, and the development of a model to predict how stimuli applied produce certain percepts with single and paired prosthesis electrodes. ❧ Ideally we would want this model to resemble a digital display with independent pixels in order to individually control each percept seen by the subject in relation to the stimuli. We find however that the model that best fits the data does not resemble a digital display but instead the nerve fiber bundle trajectories in the human retina. ❧ The work presented here gives insight into the factors affecting form perception with a microelectronic retinal prosthesis. Specifically, by directly measuring the shapes of visual percepts from single and paired electrodes at different stimulation parameters, the building blocks of prosthetic vision are understood. The incentive is that we can use this information to develop a strategy that can control the percepts from each individual prosthesis electrode and piece them together in an organized way to best represent the visual world.
DOI: 10.5517/ccdc.csd.cc141v12
title: CCDC 1044453: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1lm3r2
title: CCDC 1478134: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1pzb22
title: CCDC 1578274: Experimental Crystal Structure Determination

description: Related Article: F. Boursas, F. Berrah, N. Kanagathara, G. Anbalagan, S. Bouacida|2019|J.Mol.Struct.|1180|532|doi:10.1016/j.molstruc.2018.12.037
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1q9sg8
title: CCDC 1588330: Experimental Crystal Structure Determination

description: Related Article: Arelly M. Cantón-Díaz, Blanca M. Muñoz-Flores, Ivana Moggio, Eduardo Arias, Gleb Turlakov, Casiano Del Angel-Mosqueda, Pedro I. Ramirez-Montes, Víctor M. Jiménez-Pérez|2018|J.Mol.Struct.|1180|642|doi:10.1016/j.molstruc.2018.12.039
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.17632/48fctynd77.2
title: Simulation Results for Multi-Class Multi-Server Queueing Systems with Cross-Training

description: The JSON file contains a number of cases for multi-class multi-server systems with partial class-server assignments (cross-training). For each recorded systems all possible (feasible) class-server assignments were generated, and simulation results were recorded. The simulation results (for each assignment) include: (i) marginal probabilities that each class has the corresponding number of items in the system, (ii) class-server utilizations (utilization of server time capacity), (iii) class server distribution with percentages of class flows assigned to each server. Maximum numbers of servers and classes were limited to 6. Please note that NOT ALL possible combinations for numbers of servers and classes were generated, due to the exponential growth of possible class-server assignments. However, for each presented case (with certain numbers of servers, classes, and certain arrival/service rates), ALL possible class-server assignments were generated and simulated. The presented results allow easy analysis and optimization of systems where such queue occurs (call-centers, production facilities, maintenance systems) and benchmarking with possible optimization algorithms for class-server assignments.
DOI: 10.25549/usctheses-c3-176796
title: Page 14
DOI: 10.25549/usctheses-c3-208025
title: Postsecondary faculty attitudes, beliefs, practices, and knowledge regarding students with ADHD: a comparative analysis of two-year and four-year institutions

description: Understanding the attitudes, beliefs, and practices of postsecondary faculty regarding students with Attention Deficit Hyperactivity Disorder (ADHD) and the laws that protect such students is critical for both student success and compliance with federal laws.  The purpose of the present quantitative study was to identify differences between two-year community college and four-year university faculty in regard to their attitudes and beliefs about students with ADHD, their willingness to accommodate such students, and their knowledge of the legal protections for students with disabilities.  In order to gain this information, electronic surveys were distributed to faculty members at two two-year community colleges, two four-year public universities, and two four-year private universities.  The data was analyzed to determine whether significant differences in faculty responses exist between two-year colleges and four-year universities. Further analysis was conducted in order to determine whether differences exist between faculty responses at private four-year universities and public four-year universities.  The results of the analyses indicate that no significant differences exist between types of universities in regard to faculty attitudes and beliefs about students with ADHD, their willingness to accommodate such students, and their knowledge of the legal protections for students with disabilities.  However, additional analyses of the survey results beyond the scope of the research questions indicate that further professional development may be needed across postsecondary institutions regarding Section 504 of the Rehabilitation Act of 1973, appropriate accommodations for students with ADHD, and referral processes for students with ADHD to obtain educational accommodations.
DOI: 10.5517/ccdc.csd.cc102vnl
title: CCDC 926269: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc141v01
title: CCDC 1044452: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc141v23
title: CCDC 1044454: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc142jf5
title: CCDC 1045116: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1448xg
title: CCDC 1046805: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc1knfc0
title: CCDC 1449602: Experimental Crystal Structure Determination

description: Related Article: Tainan Zeng, Yuan Lu, Shouwen Jin, Lei Sun, Bingwei Zhong, Daqi Wang, Jiahong Wang, Hui Liu|2018|J.Mol.Struct.|1180|764|doi:10.1016/j.molstruc.2018.12.044
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc20sxh7
title: CCDC 1870989: Experimental Crystal Structure Determination

description: Related Article: Ilya E. Nifant'ev, Alexander A. Vinogradov, Alexey A. Vinogradov, Andrei V. Churakov, Vladimir V. Bagrov, Igor A. Kashulin, Vitaly A. Roznyatovsky, Yury K. Grishin, Pavel V. Ivchenko|2019|Appl.Catal.,A|571|12|doi:10.1016/j.apcata.2018.12.006
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc20y3vy
title: CCDC 1875030: Experimental Crystal Structure Determination

description: Related Article: Ilya E. Nifant'ev, Alexander A. Vinogradov, Alexey A. Vinogradov, Andrei V. Churakov, Vladimir V. Bagrov, Igor A. Kashulin, Vitaly A. Roznyatovsky, Yury K. Grishin, Pavel V. Ivchenko|2019|Appl.Catal.,A|571|12|doi:10.1016/j.apcata.2018.12.006
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccdc.csd.cc20ztg9
title: CCDC 1876661: Experimental Crystal Structure Determination

description: Related Article: Ilya E. Nifant'ev, Alexander A. Vinogradov, Alexey A. Vinogradov, Andrei V. Churakov, Vladimir V. Bagrov, Igor A. Kashulin, Vitaly A. Roznyatovsky, Yury K. Grishin, Pavel V. Ivchenko|2019|Appl.Catal.,A|571|12|doi:10.1016/j.apcata.2018.12.006
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.25549/usctheses-c3-160550
title: Page 32
DOI: 10.25549/usctheses-c3-160600
title: Page 82
DOI: 10.25549/usctheses-c3-175177
title: youTHink in action: transforming homophobic school culture through participatory action research and theatre of the oppressed

description: A graduate student from the University of Southern California Applied Theatre Arts program and teenagers at social justice organization youTHink collaborated on a theatrical project designed to help teachers make effective interventions in situations of homophobic bullying. Examining the project through the twin lenses of Participatory Action Research and Theatre of the Oppressed, this paper evaluates the efficacy and implications of using youth-generated Bystander Theatre to transform homophobic school culture.
DOI: 10.25549/usctheses-c3-176812
title: Page 30
DOI: 10.25549/usctheses-c3-160586
title: Page 68
DOI: 10.25549/usctheses-c3-160564
title: Page 46
DOI: 10.25549/usctheses-c3-176795
title: Page 13
DOI: 10.25549/usctheses-c3-177080
title: Page 85
DOI: 10.25549/usctheses-c3-177089
title: Page 94
DOI: 10.25549/usctheses-c3-208595
title: Online professional development:  using data to evaluate program effectiveness in preparing faculty to teach online

description: This study investigated a sample of community college faculty who participated in an online professional development program.  The purpose of the study was to determine the relationship between participating in an online professional development program and changes in participants’ self-assessed knowledge about tasks associated with effective online teaching.  The study examined what professional development activities the participants found to be most useful in preparing them to teach in an online environment.  The study also aimed to determine what professional development activities gave the participants the greatest knowledge gains. ❧ An evaluation was accomplished by first ensuring that the professional development was well designed to meet the training goal of increasing faculty knowledge with respect to technology, pedagogy, and content, and the combination of each of these areas (TPACK).  Second, the evaluation referred to principles of adult learning and Kirkpatrick’s evaluation model as a framework for guiding the data collection.  The pre- and post-survey was conducted and quantitative methods utilized to collect and analyze the data.  The analysis showed that there were statistically significant differences in learning gains.  Participants who participated in the online professional development program improved their self-assessed knowledge about tasks associated with effective online teaching, indicating that they felt more confident about their technology, pedagogy, and content knowledge.  Participants also demonstrated improvement in their attitudes of preparation relating to an online teaching experience and ranked certain activities as more useful than others.
DOI: 10.25549/usctheses-c3-160582
title: Page 64
DOI: 10.25549/usctheses-c3-177094
title: Page 99
DOI: 10.25549/usctheses-c3-198086
title: Preconceptions and the crossing of religious, cultural and social boundaries

description: An intimate look at three couples struggling in their personal relationships because of religious, cultural and social preconceptions. One couple is of mixed religion – Jewish and Catholic, one is struggling with the thought of divorce within a traditional Indian culture, and the third is a homosexual man who is struggling with telling his mother he is gay. All stories take you into the lives of these people and the issues they face despite the fact that they live in today’s modern society.