Global ETD Search

41	A Comparison of Microarray Analyses: A Mixed Models Approach Versus the Significance Analysis of Microarrays Stephens, Nathan Wallace 20 November 2006 (has links) (PDF) DNA microarrays are a relatively new technology for assessing the expression levels of thousands of genes simultaneously. Researchers hope to find genes that are differentially expressed by hybridizing cDNA from known treatment sources with various genes spotted on the microarrays. The large number of tests involved in analyzing microarrays has raised new questions in multiple testing. Several approaches for identifying differentially expressed genes have been proposed. This paper considers two: (1) a mixed models approach, and (2) the Signiffcance Analysis of Microarrays. Microarray Significance Analysis of Microarrays Mixed Models Multiple Testing Statistics Bioconductor Resampling Normalization Miss Rate Tail Strength False Discovery Rate FDR pFDR BYU SAS SAMR SAM SMA LPS KNNImpute FWER Statistics and Probability
42	A See-ability Metric to Improve Mini Unmanned Aerial Vehicle Operator Awareness Using Video Georegistered to Terrain Models Engh, Cameron Howard 20 November 2008 (has links) (PDF) Search and rescue operations conducted in wilderness environments can be greatly aided by the use of video filmed from mini-UAVs. While lightweight, inexpensive and easily transportable, these small aircraft suffer from wind buffeting and may produce video that is difficult to search. To aid in the video search process, we have created a system to project video frames into a 3D representation of the search region. This projection allows us to tie each frame of video to a real-world location, enabling a myriad of novel views, mosaics and metrics that can be used to guide the search including a new metric dubbed “see-ability.” The “see-ability” metric is the primary contribution of this research as it indicates what portion of the search area has been viewed and provides an estimate of the quality of that viewing. The research includes a validation of the “see-ability” metric as it correlates to objective performance in the search task by real people. BYU Brigham Young University computer vision seeability see-ability MiniUAV MUAV georegister georegistration terrain unmanned air vehicle aerial terrain model SAR search rescue search and rescue projective texture video telemetry video indexing visibility Computer Sciences
43	High-Speed Programmable FPGA Configuration Memory Access Using JTAG Gruwell, Ammon Bradley 01 April 2017 (has links) Over the past couple of decades Field Programmable Gate Arrays (FPGAs) have become increasingly useful in a variety of domains. This is due to their low cost and flexibility compared to custom ASICs. This increasing interest in FPGAs has driven the need for tools that both qualify and improve the reliability of FPGAs for applications where the reconfigurability of FPGAs makes them vulnerable to radiation upsets such as in aerospace environments. Such tools ideally work with a wide variety of devices, are highly programmable but simple to use, and perform tasks at relatively high speeds. Of the various FPGA configuration interfaces available, the Joint Test Action Group (JTAG) standard for serial communication is the most universally compatible interface due to its use for verifying integrated circuits and testing printed circuit board connectivity. This universality makes it a good interface for tools seeking to access FPGA configuration memory. This thesis introduces a new tool architecture for high-speed, programmable JTAG access to FPGA configuration memory. This tool, called the JTAG Configuration Manager (JCM), is made up of a large C++ software library that runs on an embedded micro-processor coupled with a hardware JTAG controller module implemented in programmable logic. The JCM software library allows for the development of custom JTAG communication of any kind, although this thesis focuses on applications related to FPGA reliability. The JCM hardware controller module allows these software-generated JTAG sequences to be streamed out at very high speeds. Together the software and hardware provide the high-speed and programmability that is important for many JTAG applications. FPGA JTAG scrubbing fault injection radiation testing laser testing C++ Python BYU configuration readback reliability SEU Xilinx bitstream upset mitigation hardware software high speed configuration memory CRAM SRAM Joint Test Action Group ionizing radiation space aerospace interface serial ARM processor architecture programmable logic MicroZed Zynq Linux Electrical and Computer Engineering
44	Better Speakers Make More Friends: Predictors of Social Network Development Among Study-Abroad Students Brockbank, J Wyatt 12 December 2011 (has links) (PDF) Social network development has been studied in the social sciences for the last several decades, but little work has applied social network theory to study-abroad research. This study seeks to quantitatively describe factors that predict social network formation among study-abroad students while in the host countries. Social networks were measured in terms of the number of friends the students made, the number of distinct social groups reported, and the number of friends within those groups. The Study Abroad Social Interaction Questionnaire was compared against these pre-trip factors: intercultural competence, target-language proficiency, prior missionary experience, gender, study-abroad program, neuroticism, extroversion, agreeableness, openness to new experience, agreeableness, and conscientiousness. Results showed that pre-trip oral proficiency in the target language was the strongest predictor of the number of friends made in-country. Certain programs showed stronger predictive statistics in terms of size of largest social group, number of social groups, and number of friends made. A distinction is made between total number of friends and number of friends who are more likely to be native speakers. Neither intercultural competence nor personality showed a significant correlation with the number of friendships made during study abroad. study abroad social networks predictors dispersion density egocentric social network analysis SASIQ OPI IDI NEO-FFI BYU China Egypt France Mexico Russia Spain Chinese Arabic French Spanish Russian intercultural competency intercultural sensitivity social interaction personality language proficiency neuroticism extroversion openness to new experience agreeableness conscientiousness target language second language gender returned missionary missionaries language use correlation regression

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