14,676 research outputs found
Implementation of a Deconditioning Prevention Program: Getting Dressed Makes a Difference
Implementation of a Deconditioning Prevention Program: Getting Dressed Makes a Difference
Seleem R. Choudhury MSN, MBA, RN, CEN, FAEN
Purpose. Deconditioning by immobility or bed rest affects essential body systems and diminishes functional capacity. Individuals age 65 and older have more hospital stays than any other age group. they also account for one out of three hospital admissions costing healthcare over $330 Billion annually. Numerous studies demonstrate this age group often struggle to get back to normal level of activity. . Empowering patients to dress and wear their own clothes can prevent deconditioning. Benefits to hospitals include reduced cost through admissions, improved patient flow by reducing their length of stay (LOS) which can lead to timelier admissions for other patients. A longer LOS also raises the probability of a hospital-acquired condition (HAC), which is an undesirable situation or condition that affects a patient during a hospital stay. Finally, patients who get dressed may feel more satisfied with the care they receive.
Methods. To prevent deconditioning through the development of promoting activity by getting patients dressed which reduces the risk of deconditioning as measured by three outcomes: 1) LOS, 2) HAC, 3)Patient Satisfaction. LOS and HAC data were collected from chart review. Patient satisfaction was evaluated by HCAHPS metrics.
Results. Three months of data were analyzed and compared in 2016 and 2017. The data were also segregated into age groups to analyze any benefit to over 65-year-olds. The comparison did not demonstrate clear correlation that the deconditioning program impacted the LOS and Patient Satisfaction. LOS comparison (n-832) showed improvement in month three in ages 18-59 and over 75. The ages 55-74 showed no decrease in LOS however recalculating the data from median versus mean showed all age groups LOS did decrease. Patient Satisfaction metrics (n-207) showed no clear inference or consistent pattern that deconditioning program improved satisfaction. Scores stayed comparable to previous years, especially among 18-54 age group. The 75 plus age group did see a decline in scores. Hospital Acquired Complications (HAC) was not a reliable indicator with only one incident in a two-year period. Methodological flaws in unreliable data and insufficient ability to separate variables within the electronic health record confounded comparison. Finally, the multi-faceted nature of discharges limited all of the indicators’ validity.
Conclusions. The importance of being active is universally understood, yet hospitals struggle to implement this action. Data of 1-year mortalities of over 65 support that hospitals need to do more to improve this outcome. A simple program of getting dressed everyday has the potential to reduce LOS and with further study, improve 1-year mortality. This study also showed that whilst patient satisfaction is not increased, it also does not significantly decrease therefore it’s possible to assume that our patients want hospital staff to be assertive with preventing Deconditioning Syndrome. Finally, whilst not supported in this study future work, could analyze staff’s perception of patient readiness for discharge alongside data gradually demonstrating a decrease of LOS of 75-year old
Convergent Analytic Solutions for Homoclinic Orbits in Reversible and Non-reversible Systems
In this paper, convergent, multi-infinite, series solutions are derived for
the homoclinic orbits of a canonical fourth-order ODE system, in both
reversible and non-reversible cases. This ODE includes traveling-wave
reductions of many important nonlinear PDEs or PDE systems, for which these
analytical solutions would correspond to regular or localized pulses of the
PDE. As such, the homoclinic solutions derived here are clearly topical, and
they are shown to match closely to earlier results obtained by homoclinic
numerical shooting. In addition, the results for the non-reversible case go
beyond those that have been typically considered in analyses conducted within
bifurcation-theoretic settings.
We also comment on generalizing the treatment here to parameter regimes where
solutions homoclinic to exponentially small periodic orbits are known to exist,
as well as another possible extension placing the solutions derived here within
the framework of a comprehensive categorization of ALL possible traveling-wave
solutions, both smooth and non-smooth, for our governing ODE.Comment: arXiv admin note: text overlap with arXiv:math-ph/060606
Evolution of X-ray spectra of Cygnus X-3 with radio flares
Cygnus X-3, among the X-ray binaries, is one of the brightest in the radio
band, repeatedly exhibiting huge radio flares. The X-ray spectra shows two
definite states, low (correspondingly hard) and high (correspondingly soft).
During the hard state the X-ray spectra shows a pivoting behaviour correlated
to the radio emission. In the high state the X-ray spectra shows a gamut of
behaviour which controls the radio flaring activity of the source. The complete
evolution of the X-ray spectra along with the radio flaring activity is
reported here, for the first time for this source.Comment: Bibliography has been correctly adde
Post-Double Hopf Bifurcation Dynamics and Adaptive Synchronization of a Hyperchaotic System
In this paper a four-dimensional hyperchaotic system with only one
equilibrium is considered and its double Hopf bifurcations are investigated.
The general post-bifurcation and stability analysis are carried out using the
normal form of the system obtained via the method of multiple scales. The
dynamics of the orbits predicted through the normal form comprises possible
regimes of periodic solutions, two-period tori, and three-period tori in
parameter space.
Moreover, we show how the hyperchaotic synchronization of this system can be
realized via an adaptive control scheme. Numerical simulations are included to
show the effectiveness of the designed control
Detection of anti-correlated hard X-ray time lag in Cygnus X-3
The wide-band X-ray spectra of the high mass X-ray binary Cygnus X-3 exhibits
a pivoting behavior in the `low' (as well as `hard') state, correlated to the
radio emission. The time scale of the soft and hard X-rays' anti-correlation,
which gave rise to the pivoting feature, was found to be less than a day from
the monitoring observations by RXTE--ASM and CGRO--BATSE. In this Letter we
report the detection of a lag of 1000s in the anti-correlation of
the hard X-ray emission (20--50 keV) to that of the soft X-ray emission (2--7
keV), which may be attributed to the viscous time scale of flow of matter in
the accretion disk. This suggests the geometrical picture of a truncated
accretion disc with a Compton cloud inside the disc, the relative sizes of
which determine the spectral shape. Any change in the disc structure will take
place in a viscous time scale, with corresponding anti-correlated change in the
Compton cloud. We also report the pivoting in the spectra in one span of a
pointed observation when an episode of the rearranging of the accretion system
is serendipitously observed. This is the first such observation of hard X-ray
delay seen in the persistent Galactic microquasars, within the precincts of the
hard state.Comment: Accepted in The Astrophysical Journal (Letters): in pres
Phase-field modeling of equilibrium precipitate shapes under the influence of coherency stresses
Coherency misfit stresses and their related anisotropies are known to
influence the equilibrium shapes of precipitates. Additionally, mechanical
properties of the alloys are also dependent on the shapes of the precipitates.
Therefore, in order to investigate the mechanical response of a material which
undergoes precipitation during heat treatment, it is important to derive the
range of precipitate shapes that evolve. In this regard, several studies have
been conducted in the past using sharp interface approaches where the influence
of elastic energy anisotropy on the precipitate shapes has been investigated.
In this paper, we propose a diffuse interface approach which allows us to
minimize grid-anisotropy related issues applicable in sharp-interface methods.
In this context, we introduce a novel phase-field method where we minimize the
functional consisting of the elastic and surface energy contributions while
preserving the precipitate volume. Using this method we reproduce the
shape-bifurcation diagrams for the cases of pure dilatational misfit that have
been studied previously using sharp interface methods and then extend them to
include interfacial energy anisotropy with different anisotropy strengths which
has not been a part of previous sharp-interface models. While we restrict
ourselves to cubic anisotropies in both elastic and interfacial energies in
this study, the model is generic enough to handle any combination of
anisotropies in both the bulk and interfacial terms. Further, we have examined
the influence of asymmetry in dilatational misfit strains along with
interfacial energy anisotropy on precipitate morphologies
Investigating Neutron Polarizabilities through Compton Scattering on He
We examine manifestations of neutron electromagnetic polarizabilities in
coherent Compton scattering from the Helium-3 nucleus. We calculate He elastic scattering observables using chiral perturbation theory to
next-to-leading order (). We find that the unpolarized
differential cross section can be used to measure neutron electric and magnetic
polarizabilities, while two double-polarization observables are sensitive to
different linear combinations of the four neutron spin polarizabilities.
[Note added in 2018] An erratum for this paper has been posted as
arXiv:1804.01206. Overall conclusions are unchanged, but quantitative results
are affected appreciably.Comment: 4 pages, 4 figures; version published in Phys. Rev. Let
Iterative methods for elliptic finite element equations on general meshes
Iterative methods for arbitrary mesh discretizations of elliptic partial differential equations are surveyed. The methods discussed are preconditioned conjugate gradients, algebraic multigrid, deflated conjugate gradients, an element-by-element techniques, and domain decomposition. Computational results are included
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