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Search Results: 1 - 10 of 6007 matches for " Jacquett Johnson "
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Sleep Disordered Breathing, Fatigue, and Sleepiness in HIV-Infected and -Uninfected Men
Susheel P. Patil, Todd T. Brown, Lisa P. Jacobson, Joseph B. Margolick, Alison Laffan, Lisette Johnson-Hill, Rebecca Godfrey, Jacquett Johnson, Sandra Reynolds, Alan R. Schwartz, Philip L. Smith
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0099258
Abstract: Study Objectives We investigated the association of HIV infection and highly active antiretroviral therapy (HAART) with sleep disordered breathing (SDB), fatigue, and sleepiness. Methods HIV-uninfected men (HIV?; n = 60), HIV-infected men using HAART (HIV+/HAART+; n = 58), and HIV-infected men not using HAART (HIV+/HAART?; n = 41) recruited from two sites of the Multicenter AIDS cohort study (MACS) underwent a nocturnal sleep study, anthropometric assessment, and questionnaires for fatigue and the Epworth Sleepiness Scale. The prevalence of SDB in HIV- men was compared to that in men matched from the Sleep Heart Health Study (SHHS). Results The prevalence of SDB was unexpectedly high in all groups: 86.7% for HIV?, 70.7% for HIV+/HAART+, and 73.2% for HIV+/HAART?, despite lower body-mass indices (BMI) in HIV+ groups. The higher prevalence in the HIV? men was significant in univariate analyses but not after adjustment for BMI and other variables. SDB was significantly more common in HIV? men in this study than those in SHHS, and was common in participants with BMIs <25 kg/m2. HIV+ men reported fatigue more frequently than HIV? men (25.5% vs. 6.7%; p = 0.003), but self-reported sleepiness did not differ among the three groups. Sleepiness, but not fatigue, was significantly associated with SDB. Conclusions SDB was highly prevalent in HIV? and HIV+ men, despite a normal or slightly elevated BMI. The high rate of SDB in men who have sex with men deserves further investigation. Sleepiness, but not fatigue, was related to the presence of SDB. Clinicians caring for HIV-infected patients should distinguish between fatigue and sleepiness when considering those at risk for SDB, especially in non-obese men.
A pathological o-minimal quotient
Will Johnson
Mathematics , 2014,
Abstract: We give an example of a definable quotient in an o-minimal structure which cannot be eliminated over any set of parameters, giving a negative answer to a question of Eleftheriou, Peterzil, and Ramakrishnan. Equivalently, there is an o-minimal structure M whose elementary diagram does not eliminate imaginaries. We also give a positive answer to a related question, showing that any imaginary in an o-minimal structure is interdefinable over an independent set of parameters with a tuple of real elements. This can be interpreted as saying that interpretable sets look "locally" like definable sets, in a sense which can be made precise.
Circular Planar Resistor Networks with Nonlinear and Signed Conductors
Will Johnson
Mathematics , 2012,
Abstract: We consider the inverse boundary value problem in the case of discrete electrical networks containing nonlinear (non-ohmic) resistors. Generalizing work of Curtis, Ingerman, Morrow, Colin de Verdiere, Gitler, and Vertigan, we characterize the circular planar graphs for which the inverse boundary value problem has a solution in this generalized non-linear setting. The answer is the same as in the linear setting. Our method of proof never requires that the resistors behave in a continuous or monotone fashion; this allows us to recover signed conductances in many cases. We apply this to the problem of recovery in graphs that are not circular planar. We also use our results to make a frivolous knot-theoretic statement, and to slightly generalize a fact proved by Lam and Pylyavskyy about factorization schemes in their electrical linear group.
On the proof of elimination of imaginaries in algebraically closed valued fields
Will Johnson
Mathematics , 2014,
Abstract: We give a simplified proof of elimination of imaginaries (in the geometric sorts) in ACVF, based on ideas of Hrushovski. This proof manages to avoid many of the technical issues which arose in the original proof by Haskell, Hrushovski, and Macpherson.
On dp-minimal fields
Will Johnson
Mathematics , 2015,
Abstract: We classify dp-minimal pure fields up to elementary equivalence. Most are equivalent to Hahn series fields $K((t^\Gamma))$ where $\Gamma$ satisfies some divisibility conditions and $K$ is $\mathbb{F}_p^{alg}$ or a local field of characteristic zero. We show that dp-small fields (including VC-minimal fields) are algebraically closed or real closed.
Combinatorial Game Theory, Well-Tempered Scoring Games, and a Knot Game
Will Johnson
Computer Science , 2011,
Abstract: We begin by reviewing and proving the basic facts of combinatorial game theory. We then consider scoring games (also known as Milnor games or positional games), focusing on the "fixed-length" games for which all sequences of play terminate after the same number of moves. The theory of fixed-length scoring games is shown to have properties similar to the theory of loopy combinatorial games, with operations similar to onsides and offsides. We give a complete description of the structure of fixed-length scoring games in terms of the class of short partizan games. We also consider fixed-length scoring games taking values in the two-element boolean algebra, and classify these games up to indistinguishability. We then apply these results to analyze some positions in the knotting-unknotting game of Pechenik, Townsend, Henrich, MacNaughton, and Silversmith.
The Combinatorial Game Theory of Well-Tempered Scoring Games
Will Johnson
Computer Science , 2011,
Abstract: We consider the class of "well-tempered" integer-valued scoring games, which have the property that the parity of the length of the game is independent of the line of play. We consider disjunctive sums of these games, and develop a theory for them analogous to the standard theory of disjunctive sums of normal-play partizan games. We show that the monoid of well-tempered scoring games modulo indistinguishability is cancellative but not a group, and we describe its structure in terms of the group of normal-play partizan games. We also classify Boolean-valued well-tempered scoring games, showing that there are exactly seventy, up to equivalence.
A Bioinformatics-Inspired Adaptation to Ukkonen’s Edit Distance Calculating Algorithm and Its Applicability Towards Distributed Data Mining  [PDF]
Johnson Bruce
Journal of Software Engineering and Applications (JSEA) , 2008, DOI: 10.4236/jsea.2008.11002
Abstract: Edit distance measures the similarity between two strings (as the minimum number of change, insert or delete operations that transform one string to the other). An edit sequence s is a sequence of such operations and can be used to represent the string resulting from applying s to a reference string. We present a modification to Ukkonen’s edit distance calculating algorithm based upon representing strings by edit sequences. We conclude with a demonstration of how using this representation can improve mitochondrial DNA query throughput performance in a distributed computing environment.
Yukio Mishima, the Unambiguous, and Myself: Living through a Writer’s Legacy*  [PDF]
Larry Johnson
Advances in Literary Study (ALS) , 2013, DOI: 10.4236/als.2013.14012

The recent release by Criterion on DVD of Paul Schrader’s film Mishima: A Life in Four Chapters(1985) and Mishima’s own film Patriotism(1965) has caused the author of this essay to reconsider his relationship with the late Japanese writers’ books and literary legacy. Believing that these fine films’ presence on DVD will stimulate much renewed discussion of Mishima both in the US and Japan, the author recalls his first discovery of Mishima’s existence shortly after his famous suicide in 1970, reading and responding to his literary output, and prodding famous authors such as Tennessee Williams and Cormac McCarthy for their thoughts on Mishima’s influence. The author’s two poems about Mishima are included to illustrate his changing inner perceptions of the internationally famous writer and the (now-fading) adverse reaction to his work in Japan caused by his politics and his virtually public suicide.

Intestinal Stoma Prolapse and Surgical Treatments of This Condition in Children: A Systematic Review and a Retrospective Study  [PDF]
Prince Johnson
Surgical Science (SS) , 2016, DOI: 10.4236/ss.2016.79057
Abstract: Background: An intestinal stoma is a surgical opening of the intestine, mostly sutured to the anterior abdominal wall. Stoma prolapse is one of the common complications of stoma. A significant number of stoma prolapse patients require surgical correction. Aim: The first part of this thesis is a literature review of intestinal stoma prolapse and its surgical treatments. The second part is an evaluation of the effect of surgical treatments of this condition on children at OUS-R. Methods: LiteratureA literature search was performed. Fifty-seven English-language studies were selected. Methods: Patients evaluation: Design, Setting, and ParticipantsA retrospective review of pediatric patients (<13 years) surgically treated for intestinal stoma prolapse at OUS-R. Results: LiteratureIncidence of intestinal stoma prolapse for children varies from 8.1% to 25.6%. Many proposed surgical repair procedures for stoma prolapse are available and vary from being ineffective to 100% effective. Results: Patients evaluation at OUS-RFrom 2001 to 2013, 14 of the 304 children with stoma (4.6%), experienced stoma prolapse. Nine stoma prolapse were surgically corrected: Median age at stoma formation for the 9 patients was 1.7 years. Surgical procedures and success rate: Median 2, range 1 - 9 operations/person; varies from being ineffective to 50% effective. Conclusion: Limited data suggests stoma prolapse repair is a surgical challenge. Thus, preferably when possible, closure of the stoma would be most suitable. Incidence of stoma prolapse in our series of pediatric patients at Oslo University Hospital is lower than most published incidence in the pediatric medical literature.
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