2,368 research outputs found
Patient Protection and Affordable Care Act and the Infection Prevention and Control Department of the Roswell Park Cancer Institute
Through the Patient Protection and Affordable Care Act, Prospective Payment System-Exempt Cancer Centers, including the Roswell Park Cancer Institute, will eventually be denied payments by the Centers for Medicare & Medicaid Servicesâ Hospital-Acquired Condition Reduction Program for certain preventable Hospital Acquired Conditions. This study is a participant-observer case study of the Infection Prevention and Control Department of the Roswell Park Cancer Institute. The purpose of this study is to explore the effects that the CMSâ Hospital-Acquired Condition Reduction Program may have on the Infection Prevention and Control Department of the Roswell Park Cancer Institute. Data was collected through direct observation over an eight week period, including in-person interviews with department members. This study suggests the primary impact is a perception by the members of the Infection Prevention and Control Department that compliance with the Hospital-Acquired Condition Reduction Program will be hindered due to uncooperativeness by other departments at the RPCI with the implementation of policies, procedures, and programs designed to target infections identified in the regulation
Foods, Moods, and Allergies Too a Handbook for the Human Services
I decided to write this book after my colleague, Dr. Judith Ramaley, and I spent a year giving presentations about diet and behavior to groups of our Omaha-Lincoln, Nebraska, area. These groups included human services agency staffs, abusive parents, psychotherapists, medical students, parents of newborns, social work students, preschool teachers, child development students and faculty, staff in a child assessment facility, and others
Towards Rapid Parameter Estimation on Gravitational Waves from Compact Binaries using Interpolated Waveforms
Accurate parameter estimation of gravitational waves from coalescing compact
binary sources is a key requirement for gravitational-wave astronomy.
Evaluating the posterior probability density function of the binary's
parameters (component masses, sky location, distance, etc.) requires computing
millions of waveforms. The computational expense of parameter estimation is
dominated by waveform generation and scales linearly with the waveform
computational cost. Previous work showed that gravitational waveforms from
non-spinning compact binary sources are amenable to a truncated singular value
decomposition, which allows them to be reconstructed via interpolation at fixed
computational cost. However, the accuracy requirement for parameter estimation
is typically higher than for searches, so it is crucial to ascertain that
interpolation does not lead to significant errors. Here we provide a proof of
principle to show that interpolated waveforms can be used to recover posterior
probability density functions with negligible loss in accuracy with respect to
non-interpolated waveforms. This technique has the potential to significantly
increase the efficiency of parameter estimation.Comment: 7 pages, 2 figure
Biophysical evidence for intrinsic disorder in the C-terminal tails of the epidermal growth factor receptor (EGFR) and HER3 receptor tyrosine kinases
The epidermal growth factor receptor (EGFR)/ErbB family of receptor tyrosine kinases includes oncogenes important in the progression of breast and other cancers, and they are targets for many drug development strategies. Each member of the ErbB family possesses a unique, structurally uncharacterized C-terminal tail that plays an important role in autophosphorylation and signal propagation. To determine whether these C-terminal tails are intrinsically disordered regions, we conducted a battery of biophysical experiments on the EGFR and HER3 tails. Using hydrogen/deuterium exchange mass spectrometry, we measured the conformational dynamics of intracellular half constructs and compared the tails with the ordered kinase domains. The C-terminal tails demonstrate more rapid deuterium exchange behavior when compared with the kinase domains. Next, we expressed and purified EGFR and HER3 tail-only constructs. Results from circular dichroism spectroscopy, size exclusion chromatography with multiangle light scattering, dynamic light scattering, analytical ultracentrifugation, and small angle X-ray scattering each provide evidence that the EGFR and HER3 C-terminal tails are intrinsically disordered with extended, non-globular structure in solution. The intrinsic disorder and extended conformation of these tails may be important for their function by increasing the capture radius and reducing the thermodynamic barriers for binding of downstream signaling proteins
The effect of atmospheric sulfate reductions on diffuse radiation and photosynthesis in the United States during 1995â 2013
Aerosol optical depth (AOD) has been shown to influence the global carbon sink by increasing the fraction of diffuse light, which increases photosynthesis over a greater fraction of the vegetated canopy. Between 1995 and 2013, U.S. SO2 emissions declined by over 70%, coinciding with observed AOD reductions of 3.0â Ă¹â 0.6% yrâ 1 over the eastern U.S. In the Community Earth System Model (CESM), these trends cause diffuse light to decrease regionally by almost 0.6% yrâ 1, leading to declines in gross primary production (GPP) of 0.07% yrâ 1. Integrated over the analysis period and domain, this represents 0.5 Pgâ C of omitted GPP. A separate upscaling calculation that used published relationships between GPP and diffuse light agreed with the CESM model results within 20%. The agreement between simulated and dataâ constrained upscaling results strongly suggests that anthropogenic sulfate trends have a small impact on carbon uptake in temperate forests due to scattered light.Key PointsAerosol optical depth has decreased due to reduced sulfur dioxide emissionsReduced diffuse radiation decreased cumulative gross primary productivity by 0.5 Pg C during 1995â 2013CESM trends agree with upscaled flux tower results within 20%Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134448/1/grl55002.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134448/2/grl55002-sup-0001-supinfo.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134448/3/grl55002_am.pd
Uncertainties in determining parton distributions at large x
We critically examine uncertainties in parton distribution functions (PDFs)
at large x arising from nuclear effects in deuterium F2 structure function
data. Within a global PDF analysis, we assess the impact on the PDFs from
uncertainties in the deuteron wave function at short distances and nucleon
off-shell effects, the use of relativistic kinematics, as well as the use of
less a restrictive parametrization of the d/u ratio. We find that in particular
the d-quark and gluon PDFs vary significantly with the choice of nuclear model.
We highlight the impact of these uncertainties on the determination of the
neutron structure function, and on W boson production and parton luminosity at
the Tevatron and the LHC. Finally, we discuss prospects for new measurements
sensitive to the d-quark and gluon distributions but insensitive to nuclear
corrections.Comment: 37 pages, 13 figures. Final published versio
Detecting transient gravitational waves in non-Gaussian noise with partially redundant analysis methods
There is a broad class of astrophysical sources that produce detectable,
transient, gravitational waves. Some searches for transient gravitational waves
are tailored to known features of these sources. Other searches make few
assumptions about the sources. Typically events are observable with multiple
search techniques. This work describes how to combine the results of searches
that are not independent, treating each search as a classifier for a given
event. This will be shown to improve the overall sensitivity to
gravitational-wave events while directly addressing the problem of consistent
interpretation of multiple trials.Comment: 11 pages, 5 figure
Q^2 Evolution of Generalized Baldin Sum Rule for the Proton
The generalized Baldin sum rule for virtual photon scattering, the
unpolarized analogy of the generalized Gerasimov-Drell-Hearn integral, provides
an important way to investigate the transition between perturbative QCD and
hadronic descriptions of nucleon structure. This sum rule requires integration
of the nucleon structure function F_1, which until recently had not been
measured at low Q^2 and large x, i.e. in the nucleon resonance region. This
work uses new data from inclusive electron-proton scattering in the resonance
region obtained at Jefferson Lab, in combination with SLAC deep inelastic
scattering data, to present first precision measurements of the generalized
Baldin integral for the proton in the Q^2 range of 0.3 to 4.0 GeV^2.Comment: 4 pages, 3 figures, one table; text added, one figure replace
Electron- and neutrino-nucleus scattering in the impulse approximation regime
A quantitative understanding of the weak nuclear response is a prerequisite
for the analyses of neutrino experiments such as K2K and MiniBOONE, which
measure energy and angle of the muons produced in neutrino-nucleus interactions
in the energy range GeV and reconstruct the incident neutrino energy to
determine neutrino oscillations. In this paper we discuss theoretical
calculations of electron- and neutrino-nucleus scattering, carried out within
the impulse approximation scheme using realistic nuclear spectral
functions.Comparison between electron scattering data and the calculated
inclusive cross section off oxygen, at beam energies ranging between 700 and
1200 MeV, show that the Fermi gas model, widely used in the analysis of
neutrino oscillation experiments,fails to provide a satisfactory description of
the measured cross sections,and inclusion of nuclear dynamics is needed.Comment: 12 pages, 15 figure
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