1,087 research outputs found
The Use of Telemetry Monitoring Among General Medicine Patients
Objective:
To determine why and when general medicine non-ICU patients are upgraded from a non-telemetry level of care to telemetry monitoring at Thomas Jefferson University Hospital (TJUH). Comparison of the reasons for initiation of continuous ECG monitoring with the AHA and ACC guidelines would provide a greater understanding of the applicability of these recommendations to non-ICU general medicine patients. This information can provide guidance to identify areas of intervention to decrease inappropriate and/or overutilization of telemetry. The ultimate goal is to identify general medicine patients who are likely to benefit from continuous ECG monitoring, without negatively affecting clinical outcomes for those who do not receive cardiac monitoring.https://jdc.jefferson.edu/patientsafetyposters/1025/thumbnail.jp
Revisiting the bulge-halo conspiracy I: Dependence on galaxy properties and halo mass
We carry out a systematic investigation of the total mass density profile of
massive (Mstar>2e11 Msun) early-type galaxies and its dependence on galactic
properties and host halo mass with the aid of a variety of lensing/dynamical
data and large mock galaxy catalogs. The latter are produced via semi-empirical
models that, by design, are based on just a few basic input assumptions.
Galaxies, with measured stellar masses, effective radii and S\'{e}rsic indices,
are assigned, via abundance matching relations, host dark matter halos
characterized by a typical LCDM profile. Our main results are as follows: (i)
In line with observational evidence, our semi-empirical models naturally
predict that the total, mass-weighted density slope at the effective radius
gamma' is not universal, steepening for more compact and/or massive galaxies,
but flattening with increasing host halo mass. (ii) Models characterized by a
Salpeter or variable initial mass function and uncontracted dark matter
profiles are in good agreement with the data, while a Chabrier initial mass
function and/or adiabatic contractions/expansions of the dark matter halos are
highly disfavored. (iii) Currently available data on the mass density profiles
of very massive galaxies (Mstar>1e12 Msun), with Mhalo>3e14 Msun, favor instead
models with a stellar profile flatter than a S\'{e}rsic one in the very inner
regions (r<3-5 kpc), and a cored NFW or Einasto dark matter profile with median
halo concentration a factor of ~2 or <1.3, respectively, higher than those
typically predicted by N-body numerical simulations.Comment: 23 pages, 10 figures, 3 Appendices (with an extra 7 figures). ApJ,
accepted. Main results in Figures 3, 5, 6,
Effects of nanoparticles on murine macrophages
Metallic nanoparticles are more and more widely used in an increasing number
of applications. Consequently, they are more and more present in the
environment, and the risk that they may represent for human health must be
evaluated. This requires to increase our knowledge of the cellular responses to
nanoparticles. In this context, macrophages appear as an attractive system.
They play a major role in eliminating foreign matter, e.g. pathogens or
infectious agents, by phagocytosis and inflammatory responses, and are thus
highly likely to react to nanoparticles. We have decided to study their
responses to nanoparticles by a combination of classical and wide-scope
approaches such as proteomics. The long term goal of this study is the better
understanding of the responses of macrophages to nanoparticles, and thus to
help to assess their possible impact on human health. We chose as a model
system bone marrow-derived macrophages and studied the effect of commonly used
nanoparticles such as TiO2 and Cu. Classical responses of macrophage were
characterized and proteomic approaches based on 2D gels of whole cell extracts
were used. Preliminary proteomic data resulting from whole cell extracts showed
different effects for TiO2-NPs and Cu-NPs. Modifications of the expression of
several proteins involved in different pathways such as, for example, signal
transduction, endosome-lysosome pathway, Krebs cycle, oxidative stress response
have been underscored. These first results validate our proteomics approach and
open a new wide field of investigation for NPs impact on macrophagesComment: Nanosafe2010: International Conference on Safe Production and Use of
Nanomaterials 16-18 November 2010, Grenoble, France, Grenoble : France (2010
The Halo Mass of Optically Luminous Quasars at z ,F≈ ,F1-2 Measured via Gravitational Deflection of the Cosmic Microwave Background
© 2019. The American Astronomical Society. All rights reserved.We measure the average deflection of cosmic microwave background photons by quasars at 〈Z〉= 1.7. Our sample is selected from the Sloan Digital Sky Survey to cover the redshift range 0.9 ≤z≤2.2 with absolute i-band magnitudes of M i ≤-24 (K-corrected to z = 2). A stack of nearly 200,000 targets reveals an 8δ detection of Planck's estimate of the lensing convergence toward the quasars. We fit the signal with a model comprising a Navarro-Frenk-White density profile and a two-halo term accounting for correlated large-scale structure, which dominates the observed signal. The best-fitting model is described by an average halo mass log 10 (M h h -1 M)12.6 ±0.2 = and linear bias b=2.7±0.3 at 〈Z 〉= 1.7, in excellent agreement with clustering studies. We also report a hint, at a 90% confidence level, of a correlation between the convergence amplitude and luminosity, indicating that quasars brighter than Mi≲ -26 reside in halos of typical mass M h ≈ 10 13 h -1 M, scaling roughly as M h ∞ L opt 3/4 at M i ≲-24 mag, in good agreement with physically motivated quasar demography models. Although we acknowledge that this luminosity dependence is a marginal result, the observed Mh-L opt relationship could be interpreted as a reflection of the cutoff in the distribution of black hole accretion rates toward high Eddington ratios: the weak trend of Mh with Lopt observed at low luminosity becomes stronger for the most powerful quasars, which tend to be accreting close to the Eddington limit.Peer reviewedFinal Accepted Versio
Optimal trapping wavelengths of Cs molecules in an optical lattice
The present paper aims at finding optimal parameters for trapping of Cs
molecules in optical lattices, with the perspective of creating a quantum
degenerate gas of ground-state molecules. We have calculated dynamic
polarizabilities of Cs molecules subject to an oscillating electric field,
using accurate potential curves and electronic transition dipole moments. We
show that for some particular wavelengths of the optical lattice, called "magic
wavelengths", the polarizability of the ground-state molecules is equal to the
one of a Feshbach molecule. As the creation of the sample of ground-state
molecules relies on an adiabatic population transfer from weakly-bound
molecules created on a Feshbach resonance, such a coincidence ensures that both
the initial and final states are favorably trapped by the lattice light,
allowing optimized transfer in agreement with the experimental observation
Charges and fluxes in Maxwell theory on compact manifolds with boundary
We investigate the charges and fluxes that can occur in higher-order Abelian
gauge theories defined on compact space-time manifolds with boundary. The
boundary is necessary to supply a destination to the electric lines of force
emanating from brane sources, thus allowing non-zero net electric charges, but
it also introduces new types of electric and magnetic flux. The resulting
structure of currents, charges, and fluxes is studied and expressed in the
language of relative homology and de Rham cohomology and the corresponding
abelian groups. These can be organised in terms of a pair of exact sequences
related by the Poincar\'e-Lefschetz isomorphism and by a weaker flip symmetry
exchanging the ends of the sequences. It is shown how all this structure is
brought into play by the imposition of the appropriately generalised Maxwell's
equations. The requirement that these equations be integrable restricts the
world-volume of a permitted brane (assumed closed) to be homologous to a cycle
on the boundary of space-time. All electric charges and magnetic fluxes are
quantised and satisfy the Dirac quantisation condition. But through some
boundary cycles there may be unquantised electric fluxes associated with
quantised magnetic fluxes and so dyonic in nature.Comment: 28 pages, plain Te
Polo-like kinase 3 regulates CtIP during DNA double-strand break repair in G1
DNA double-strand breaks (DSBs) are repaired by nonhomologous end joining (NHEJ) or homologous recombination (HR). The C terminal binding protein–interacting protein (CtIP) is phosphorylated in G2 by cyclin-dependent kinases to initiate resection and promote HR. CtIP also exerts functions during NHEJ, although the mechanism phosphorylating CtIP in G1 is unknown. In this paper, we identify Plk3 (Polo-like kinase 3) as a novel DSB response factor that phosphorylates CtIP in G1 in a damage-inducible manner and impacts on various cellular processes in G1. First, Plk3 and CtIP enhance the formation of ionizing radiation-induced translocations; second, they promote large-scale genomic deletions from restriction enzyme-induced DSBs; third, they are required for resection and repair of complex DSBs; and finally, they regulate alternative NHEJ processes in Ku−/− mutants. We show that mutating CtIP at S327 or T847 to nonphosphorylatable alanine phenocopies Plk3 or CtIP loss. Plk3 binds to CtIP phosphorylated at S327 via its Polo box domains, which is necessary for robust damage-induced CtIP phosphorylation at S327 and subsequent CtIP phosphorylation at T847
Unraveling the Complexity of Critical Consciousness, Political Efficacy, and Political Action Among Marginalized Adolescents
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141719/1/cdev12446.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141719/2/cdev12446_am.pd
An Industry-University Response to Global Competition
In 1998, representatives of New Mexico\u27s chile pepper industry approached New Mexico State University\u27s College of Agriculture and Home Economics for help in gaining the edge on new global competition. The result was the New Mexico Chile Task Force, which brought together industry, university, and government partners to apply the most up-to-date knowledge and technology to industry problems. Key to the task force\u27s success is the search conference format used in the initial strategic planning phase. This method, pioneered by Emery and Trist in the 1960s, brought together parties with divergent opinions and empowered them to develop strategies to manage change
An Industry-University Response to Global Competition
In 1998, representatives of New Mexico\u27s chile pepper industry approached New Mexico State University\u27s College of Agriculture and Home Economics for help in gaining the edge on new global competition. The result was the New Mexico Chile Task Force, which brought together industry, university, and government partners to apply the most up-to-date knowledge and technology to industry problems. Key to the task force\u27s success is the search conference format used in the initial strategic planning phase. This method, pioneered by Emery and Trist in the 1960s, brought together parties with divergent opinions and empowered them to develop strategies to manage change
- …
