754 research outputs found
Wayne K. Bullock
No full textWayne K. Bullock, grandson of Thomas Bullock, early Utah pioneer, son of Seth Bullock, author of three books of poetry
Exploring adaptation with evolutionary activity plots
No full textEvolutionary activity statistics and their visualization are introduced, and their motivation is explained. Examples of their use are described, and their strengths and limitations are discussed. References to more extensive or general accounts of these techniques are provided
GPU acceleration of advanced K-mer counting for computational genomics
No full textk-mer counting is a popular pre-processing step in many bioinformatic algorithms. KMC2 is one of the most popular tools for k-mer counting. In this work, we leverage the computational power of the GPU to accelerate KMC2. Our goal is to reduce the overall runtime of many genome analysis tasks that use k-mer counting as an essential step. We achieved 4.03x speedup using one GTX 1080 Ti with one CPU (Xeon E5-2603) thread and 5.88x speedup using one GPU with four CPU threads over KMC2 running on a single CPU thread. This speedup is significant because accelerating k-mer counting is challenging due to reasons like serialized portions of code and overhead of disk operations.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-08-01The student, Huiren Li, accepted the attached license on 2018-05-14 at 19:09.The student, Huiren Li, submitted this Thesis for approval on 2018-05-14 at 19:13.This Thesis was approved for publication on 2018-05-15 at 09:42.DSpace SAF Submission Ingestion Package generated from Vireo submission #12571 on 2018-09-27 at 11:15:40Made available in DSpace on 2018-09-27T16:28:01Z (GMT). No. of bitstreams: 2
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Previous issue date: 2018-05-15Embargo set by: Seth Robbins for item 107736
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107736
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107736
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107736
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 107736 on 2020-09-28T09:15:24Z
K-hot pipelining
No full textComputing systems in almost every application domain now support techniques to trade off power and performance. Such techniques are used to enforce power and thermal constraints, manage power and thermal budgets and respond to temperature and aging. Unfortunately, many of the current techniques are limited in the dynamic range they provide and scale poorly with technology. Techniques that can supplement or replace current techniques are needed. We propose k-hot pipelining, a novel technique to support multiple power-performance points in a processor. The key idea is to provide power and clock to only k stages of an m-stage pipeline (k < m); the k stages to be powered on change as instructions flow through the pipeline. Since the remaining m − k stages do not consume power, the technique results in power savings at the expense of performance. k-hot pipelining can be software or hardware-controlled, workload-agnostic or workload-adaptive, and can be used to provide power-performance points not supported by existing techniques. For one implementation of k-hot pipelining, we show that up to 49.9% power reduction is possible over the baseline design. Power reduction is up to 47% over the lowest power point supported by DVFS.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2018-08-01The student, Dao Lu, accepted the attached license on 2016-07-05 at 16:46.The student, Dao Lu, submitted this Thesis for approval on 2016-07-05 at 16:50.This Thesis was approved for publication on 2016-07-06 at 14:10.DSpace SAF Submission Ingestion Package generated from Vireo submission #9764 on 2016-11-10 at 12:24:54Made available in DSpace on 2016-11-10T18:39:17Z (GMT). No. of bitstreams: 2
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Previous issue date: 2016-07-06Embargo set by: Seth Robbins for item 95454
Lift date: 2018-11-10T18:39:22Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 95454
Lift date: 2018-11-10T18:43:22Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 95454 on 2018-11-11T10:15:28Z
Generalizations of no k-equal spaces
No full textWe consider generalizations of no -equal spaces as well as their relations to other concepts. For any topological space , the no -equal space of is the space of points from such that no are the same. First, we consider a generalization where each of the points is assigned one of colors; the interactions between various points are governed by a subset of . We call these spaces polychromatic configuration spaces. We find the homology groups and cohomology rings for two classes of polychromatic configuration spaces of .
Next, we consider the relation between no -equal spaces of and -trees of simplicial complexes. It was noticed that the first non-trivial homology group of the no -equal space of has rank equal to the number of facets in a -dimensional spanning tree of the -dimensional hypercube. We give a proof of this that is not reliant on knowledge of these numbers. Furthemore, we prove the analogous fact for a generalization of no -equal spaces: comb no -equal spaces.
The -equal arrangements are a generalization of the braid arrangements. In another direction, Manin and Schectman defined discriminantal arrangements as a generalization of braid arrangements. In the final chapter, we combine these two to define codimension- discriminantal arrangements. These arise geometrically as no -intersecting translates of hyperplanes. We give results on the first two non-trivial homology groups of no -intersecting translates of hyperplanes in .Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-05-01The student, Nicholas Kosar, accepted the attached license on 2018-04-07 at 12:04.The student, Nicholas Kosar, submitted this Dissertation for approval on 2018-04-07 at 12:05.This Dissertation was approved for publication on 2018-04-10 at 08:04.DSpace SAF Submission Ingestion Package generated from Vireo submission #12146 on 2018-08-31 at 17:18:16Made available in DSpace on 2018-09-04T20:33:59Z (GMT). No. of bitstreams: 2
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Previous issue date: 2018-04-10Embargo set by: Seth Robbins for item 107225
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107225
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 107225 on 2020-09-05T09:15:16Z
Consciousness in humans and non-human animals: Recent advances and future directions.
No full textThis joint article reflects the authors’ personal views regarding noteworthy advances in the neuroscience of consciousness in the last ten years, and suggests what we feel may be promising future directions. It is based on a small conference at the Samoset Resort in Rockport, Maine, USA, in July of 2012, organized by the Mind Science Foundation of San Antonio, Texas. Here, we summarize recent advances in our understanding of subjectivity in humans and other animals, including empirical, applied, technical and conceptual insights. These include the evidence for the importance of fronto-parietal connectivity and of feedback processes, both of which enable information to travel across distant cortical areas effectively, as well as numerous dissociations between consciousness and cognitive functions, such as attention, in humans. In addition, we describe the development of mental imagery paradigms, which made it possible to identify covert awareness in non-responsive subjects. Non-human animal consciousness research has also witnessed substantial advances on the specific role of cortical areas and higher order thalamus for consciousness, thanks to important technological advances. In addition, much progress has been made in the understanding of non-vertebrate cognition relevant to possible conscious states. Finally, major advances have been made in theories of consciousness, and also in their comparison with the available evidence. Along with reviewing these findings, each author suggests future avenues for research in their field of investigation
A motivic norm structure on equivariant algebraic K-theory
No full textEquivariant motivic homotopy theory is a homotopy theory of schemes with algebraic group actions. This thesis is mainly divided into two parts. In the first part, we define four model categories of motivic spectra that present the -category \SH^G(S). We use the model categorical setup to reproduce the motivic norm functors, which were originally defined in \cite{BH}. In the second part, we define a theory of orientation in -equivariant motivic homotopy theory, at least for a finite abelian group . As an application, we prove the equivariant motivic analogue of the Snaith theorem (\Sigma^\infty_+ \P(\U_A))[\beta^{-1}] \simeq \KGL_A and use it to show that equivariant algebraic -theory is a normed motivic ring spectrum.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-08-01The student, Tsutomu Okano, accepted the attached license on 2021-07-04 at 03:42.The student, Tsutomu Okano, submitted this Dissertation for approval on 2021-07-04 at 04:16.This Dissertation was approved for publication on 2021-07-08 at 16:52.DSpace SAF Submission Ingestion Package generated from Vireo submission #16754 on 2022-01-12 at 13:03:53Made available in DSpace on 2022-01-12T22:54:09Z (GMT). No. of bitstreams: 3
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Previous issue date: 2021-07-08Embargo set by: Seth Robbins for item 121197
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Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemAuthor requested closed access (OA after 2yrs) in Vireo ETD systemLimite
Following the Prairie Frontier. By Seth K. Humphrey
No full text"This anecdotal record, the author says, begins 'with my father's pioneering in Minnesota Territory from 1855 on and continuing with my own experiences after 1870…'
Whole-genome analysis of diverse Chlamydia trachomatis strains identifies phylogenetic relationships masked by current clinical typing
No full textChlamydia trachomatis is responsible for both trachoma and sexually transmitted infections, causing substantial morbidity and economic cost globally. Despite this, our knowledge of its population and evolutionary genetics is limited. Here we present a detailed phylogeny based on whole-genome sequencing of representative strains of C. trachomatis from both trachoma and lymphogranuloma venereum (LGV) biovars from temporally and geographically diverse sources. Our analysis shows that predicting phylogenetic structure using ompA, which is traditionally used to classify Chlamydia, is misleading because extensive recombination in this region masks any true relationships present. We show that in many instances, ompA is a chimera that can be exchanged in part or as a whole both within and between biovars. We also provide evidence for exchange of, and recombination within, the cryptic plasmid, which is another key diagnostic target. We used our phylogenetic framework to show how genetic exchange has manifested itself in ocular, urogenital and LGV C. trachomatis strains, including the epidemic LGV serotype L2b
On representations of rational Cherednik algebras
No full textThesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2018.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from student-submitted PDF version of thesis.Includes bibliographical references (pages 197-201).This thesis introduces and studies two constructions related to the representation theory of rational Cherednik algebras: the refined filtration by supports for the category O and the Dunkl weight function. The refined filtration by supports provides an analogue for rational Cherednik algebras of the Harish-Chandra series appearing in the representation theory of finite groups of Lie type. In particular, irreducible representations in the rational Cherednik category O with particular generalized support conditions correspond to irreducible representations of associated generalized Hecke algebras. An explicit presentation for these generalized Hecke algebras is given in the Coxeter case, classifying the irreducible finite-dimensional representations in many new cases. The Dunkl weight function K is a holomorphic family of tempered distributions on the real reflection representation of a finite Coxeter group W with values in linear endomorphisms of an irreducible representation of W. The distribution K gives rise to an integral formula for the Gaussian inner product on a Verma module in the rational Cherednik category O. At real parameter values, the restriction of K to the regular locus in the real reflection representation can be interpreted as an analytic function taking values in Hermitian forms, invariant under the braid group, on the image of a Verma module under the Knizhnik-Zamolodchikov (KZ) functor. This provides a bridge between the study of invariant Hermitian forms on representations of rational Cherednik algebras and of Hecke algebras, allowing for a proof that the KZ functor preserves signatures in an appropriate sense.by Seth Shelley-Abrahamson.Ph. D
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