240 research outputs found
Cytoscape: the network visualization tool for GenomeSpace workflows.
Modern genomic analysis often requires workflows incorporating multiple best-of-breed tools. GenomeSpace is a web-based visual workbench that combines a selection of these tools with mechanisms that create data flows between them. One such tool is Cytoscape 3, a popular application that enables analysis and visualization of graph-oriented genomic networks. As Cytoscape runs on the desktop, and not in a web browser, integrating it into GenomeSpace required special care in creating a seamless user experience and enabling appropriate data flows. In this paper, we present the design and operation of the Cytoscape GenomeSpace app, which accomplishes this integration, thereby providing critical analysis and visualization functionality for GenomeSpace users. It has been downloaded over 850 times since the release of its first version in September, 2013
A Finite-Bound Partition Equinumerosity Result Generalizing a Solution of a Problem Posed by Andrews and Deutsch
We introduce a finite-bound extension of a partition equinumerosity result
which was orignally proposed as a problem by Andrews and Deutsch in 2016, and
given a generalized form in 2018 by Smoot and Yang. We also give a simple
bijective proof, itself an extension of the proof given of the 2018
generalization
A Democratic Art
This is a report on my creative research and it is written in support of my thesis exhibition entitled A Democratic Art. This thesis is an investigation into the ways printmaking is celebrated within the printmaking community, with particular attention given to the notion that printmaking is the most democratic of all art forms. In exploring the concept of a democratic art, I will consider democratic participation that has taken place throughout the history of the United States. This work is the result of my experience working as a collaborative fine art printer and the satisfaction I have derived from my involvement in these endeavors, coupled with my concern for the relationship between this specialized labor and the constant struggle for social justice within the broader political economy to which it is inevitably tied.  M.F.A
Diphenhydramine as an adjunct to conscious sedation in bronchoscopy
Intravenous benzodiazepines are commonly used to achieve conscious sedation in outpatient bronchoscopy. Though effective, dose-dependent-adverse events may be encountered with the use of these sedatives. Diphenhydramine, a hypnotic, is sometimes used as an adjunctive agent in bronchoscopy to decrease sedative usage. However, data to support this practice is lacking. Our goal was to determine if adjunctive diphenhydramine significantly decreases doses of benzodiazepine in outpatient bronchoscopy.
METHODS: We conducted a single-center retrospective analysis of all outpatient bronchoscopies from November 2013 to February 2016. Subjects included were those who each had two bronchoscopies: no diphenhydramine used (control) versus diphenhydramine used (intervention). The procedure time, total doses of midazolam and opiates (in morphine equivalence) for each procedure were collected. A multiple regression analysis was used to compare differences between bronchoscopy groups in midazolam and opiate use.
RESULTS: Of 1164 patients with greater than 1 outpatient bronchoscopies, 61 unique subjects (female 56%) fulfilled the primary inclusion criteria thus resulting to 122 procedures. Mean body mass index was 32 kg/m2. Procedure time was 22.9 ± 16 mins in diphenhydramine group and 23.2 ± 17.8 mins in control group. Mean morphine equivalents administered was 5.6 ± 2.6 mg in diphenhydramine group and 6.2 ± 2.4 mg in control group. Mean midazolam use was 8.4 ± 3.2 mg in diphenhydramine group and 10.2 ± 3.8 mg in control group (difference: -1.795, p-value = 0.005). The mean dose of diphenhydramine used was 38.32 ± 15.12 mg. In a multivariate model, mean midazolam use remained less in the diphenhydramine group after adjusting for procedure time and morphine equivalents, (difference -1.28 mg, p-value = 0.005).
CONCLUSIONS: Intravenous administration of diphenhydramine during outpatient bronchoscopy reduces midazolam usage, however, the absolute amount of dose reduction may not be clinically significant
Versatile and open software for comparing large genomes
The newest version of MUMmer easily handles comparisons of large eukaryotic genomes at varying evolutionary distances, as demonstrated by applications to multiple genomes. Two new graphical viewing tools provide alternative ways to analyze genome alignments. The new system is the first version of MUMmer to be released as open-source software. This allows other developers to contribute to the code base and freely redistribute the code. The MUMmer sources are available at
On Perturbations in Warm Inflation
Warm inflation is an interesting possibility of describing the early
universe, whose basic feature is the absence, at least in principle, of a
preheating or reheating phase. Here we analyze the dynamics of warm inflation
generalizing the usual slow-roll parameters that are useful for characterizing
the inflationary phase. We study the evolution of entropy and adiabatic
perturbations, where the main result is that for a very small amount of
dissipation the entropy perturbations can be neglected and the purely adiabatic
perturbations will be responsible for the primordial spectrum of
inhomogeneities. Taking into account the COBE-DMR data of the cosmic microwave
background anisotropy as well as the fact that the interval of inflation for
which the scales of astrophysical interest cross outside the Hubble radius is
about 50 e-folds before the end of inflation, we could estimate the magnitude
of the dissipation term. It was also possible to show that at the end of
inflation the universe is hot enough to provide a smooth transition to the
radiation era.Comment: 12 pages, no figures, requires revtex4. Further explanation on the
origin of the entropy perturbation, reference added and minor notation
change. Version accepted for publication in Phys. Rev.
Perception versus reality: A National Cohort Analysis of the surgery-first approach for resectable pancreatic cancer
INTRODUCTION: Although surgical resection is necessary, it is not sufficient for long-term survival in pancreatic ductal adenocarcinoma (PDAC). We sought to evaluate survival after up-front surgery (UFS) in anatomically resectable PDAC in the context of three critical factors: (A) margin status; (B) CA19-9; and (C) receipt of adjuvant chemotherapy.
METHODS: The National Cancer Data Base (2010-2015) was reviewed for clinically resectable (stage 0/I/II) PDAC patients. Surgical margins, pre-operative CA19-9, and receipt of adjuvant chemotherapy were evaluated. Patient overall survival was stratified based on these factors and their respective combinations. Outcomes after UFS were compared to equivalently staged patients after neoadjuvant chemotherapy on an intention-to-treat (ITT) basis.
RESULTS: Twelve thousand and eighty-nine patients were included (n = 9197 UFS, n = 2892 ITT neoadjuvant). In the UFS cohort, only 20.4% had all three factors (median OS = 31.2 months). Nearly 1/3rd (32.7%) of UFS patients had none or only one factor with concomitant worst survival (median OS = 14.7 months). Survival after UFS decreased with each failing factor (two factors: 23 months, one factor: 15.5 months, no factors: 7.9 months) and this persisted after adjustment. Overall survival was superior in the ITT-neoadjuvant cohort (27.9 vs. 22 months) to UFS.
CONCLUSION: Despite the perceived benefit of UFS, only 1-in-5 UFS patients actually realize maximal survival when known factors highly associated with outcomes are assessed. Patients are proportionally more likely to do worst, rather than best after UFS treatment. Similarly staged patients undergoing ITT-neoadjuvant therapy achieve survival superior to the majority of UFS patients. Patients and providers should be aware of the false perception of \u27optimal\u27 survival benefit with UFS in anatomically resectable PDAC
Recovering the Inflationary Potential
A procedure is developed for the recovery of the inflationary potential over
the interval that affects astrophysical scales (\approx 1\Mpc - 10^4\Mpc).
The amplitudes of the scalar and tensor metric perturbations and their
power-spectrum indices, which can in principle be inferred from large-angle CBR
anisotropy experiments and other cosmological data, determine the value of the
inflationary potential and its first two derivatives. From these, the
inflationary potential can be reconstructed in a Taylor series and the
consistency of the inflationary hypothesis tested. A number of examples are
presented, and the effect of observational uncertainties is discussed.Comment: 13 pages LaTeX, 6 Figs. available on request, FNAL-Pub-93/182-
Inflation at the Electroweak Scale
We present a simple model for slow-rollover inflation where the vacuum energy
that drives inflation is of the order of ; unlike most models, the
conversion of vacuum energy to radiation (``reheating'') is moderately
efficient. The scalar field responsible for inflation is a standard-model
singlet, develops a vacuum expectation value of the order of 4\times
10^6\GeV, has a mass of order 1\GeV, and can play a role in electroweak
phenomena.Comment: 14 page
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