3,766 research outputs found
Elderly day care centers: Recommendations for improvement
Indexación: Scopus.Introduction: Chile has become a country that continues to grow at an accelerated pace. One of the key pieces of the Comprehensive Policy for Positive Aging for Chile is the development of Day Centers for the Elderly (CDPM) directed elderly at the foot of the dependency. Objective: To know the perception of a group of PMs, their caregivers and professionals of their participation in the CDPM with the purpose of designing recommendations to improve this new type of geriatric service established in the country. Methodology: Qualitative descriptive study performed in 30 participants through 4 focus groups: 2 in elderly (n=12), 1 with caregivers (n=8) and 1 with center professionals (n=10). Results: Two main comprehensive categories were identified: 1) Perception of benefits for elderly: improvement of functionality, increase of well-being and insertion of the social mayor, 2) Recommendations for improvement of CDPM: Criteria for inclusive income, flexibility and diversity in activities stipulated and Improvements in egress. Conclusions: The elderly, their caregivers and the professionals who attend them are consistent in pointing out that elderly assistance to this type of service reports benefits in its functionality, well-being and social insertion. This study contributes to broadening the understanding of results in the uses of CDPM by reporting an experience in a particular social context. © 2018 Spanish Publishers Associate. All rights reserved.Introduction: Chile has become a country that continues
to grow at an accelerated pace. One of the key pieces of the
Comprehensive Policy for Positive Aging for Chile is the
development of Day Centers for the Elderly (CDPM) directed
elderly at the foot of the dependency. Objective: To know the
perception of a group of PMs, their caregivers and professionals
of their participation in the CDPM with the purpose of
designing recommendations to improve this new type of geriatric
service established in the country. Methodology: Qualitative
descriptive study performed in 30 participants through 4 focus
groups: 2 in elderly (n=12), 1 with caregivers (n=8) and 1 with
center professionals (n=10). Results: Two main comprehensive
categories were identified: 1) Perception of benefits for
elderly: improvement of functionality, increase of well-being
and insertion of the social mayor, 2) Recommendations for
improvement of CDPM: Criteria for inclusive income, flexibility
and diversity in activities stipulated and Improvements in
egress. Conclusions: The elderly, their caregivers and the
professionals who attend them are consistent in pointing out
that elderly assistance to this type of service reports benefits
in its functionality, well-being and social insertion. This study
contributes to broadening the understanding of results in the
uses of CDPM by reporting an experience in a particular social
context.http://www.gerokomos.com/wp-content/uploads/2018/03/29-1-2018-009.pd
Profiling of open chromatin in developing pig (Sus scrofa) muscle to identify regulatory regions
There is very little information about how the genome is regulated in domestic pigs (Sus scrofa). This lack of knowledge hinders efforts to define and predict the effects of genetic variants in pig breeding programs. To address this knowledge gap, we need to identify regulatory sequences in the pig genome starting with regions of open chromatin. We used the "Improved Protocol for the Assay for Transposase-Accessible Chromatin (Omni-ATAC-Seq)" to identify putative regulatory regions in flash-frozen semitendinosus muscle from 24 male piglets. We collected samples from the smallest-, average-, and largest-sized male piglets from each litter through five developmental time points. Of the 4661 ATAC-Seq peaks identified that represent regions of open chromatin, >50% were within 1 kb of known transcription start sites. Differential read count analysis revealed 377 ATAC-Seq defined genomic regions where chromatin accessibility differed significantly across developmental time points. We found regions of open chromatin associated with downregulation of genes involved in muscle development that were present in small-sized fetal piglets but absent in large-sized fetal piglets at day 90 of gestation. The dataset that we have generated provides a resource for studies of genome regulation in pigs and contributes valuable functional annotation information to filter genetic variants for use in genomic selection in pig breeding programs
Search for gravitational waves associated with the August 2006 timing glitch of the Vela pulsar
The physical mechanisms responsible for pulsar timing glitches are thought to excite quasinormal mode oscillations in their parent neutron star that couple to gravitational-wave emission. In August 2006, a timing glitch was observed in the radio emission of PSR B0833-45, the Vela pulsar. At the time of the glitch, the two colocated Hanford gravitational-wave detectors of the Laser Interferometer Gravitational wave observatory (LIGO) were operational and taking data as part of the fifth LIGO science run (S5). We present the first direct search for the gravitational-wave emission associated with oscillations of the fundamental quadrupole mode excited by a pulsar timing glitch. No gravitational-wave detection
candidate was found. We place Bayesian 90% confidence upper limits of 6.3 x 10^(-21) to 1.4 x 10^(-20) on the peak intrinsic strain amplitude of gravitational-wave ring-down signals, depending on which spherical harmonic mode is excited. The corresponding range of energy upper limits is 5.0 x 10^(-44) to 1.3 x 10^(-45) erg
Trigonometric Parallaxes of Massive Star Forming Regions: V. G23.01-0.41 and G23.44-0.18
We report trigonometric parallaxes for the massive star-forming regions
G23.01-0.41 and G23.44-0.18, corresponding to distances of 4.59 [+0.38/-0.33]
kpc and 5.88 [+1.37/-0.93] kpc, respectively. The distance to G23.01-0.41 is
smaller than its near kinematic distance assuming a standard model of the Milky
Way and less than half of its far kinematic distance, which has usually been
assumed. This places it in the Crux-Scutum spiral arm. The distance to
G23.44-0.18 is close to its near kinematic distance and most likely places it
in the Norma spiral arm near the end of the Galactic bar. Combining the
distance and proper motions with observed radial velocities gives the location
and full space motion of the star forming regions. We find large deviations
from circular Galactic orbits for these sources: both sources show peculiar
motions of 20 to 30 km/s counter to Galactic rotation and toward the Galactic
center. These large peculiar motions might be the result of gravitational
perturbations from the Galactic bar.Comment: The Astrophysical Journal, accepted, 14 pages, 6 Figures, also
available at http://www.mpifr-bonn.mpg.de/staff/abrunthaler/pub.shtm
Hopping Conductivity of a Nearly-1d Fractal: a Model for Conducting Polymers
We suggest treating a conducting network of oriented polymer chains as an
anisotropic fractal whose dimensionality D=1+\epsilon is close to one.
Percolation on such a fractal is studied within the real space renormalization
group of Migdal and Kadanoff. We find that the threshold value and all the
critical exponents are strongly nonanalytic functions of \epsilon as \epsilon
tends to zero, e.g., the critical exponent of conductivity is \epsilon^{-2}\exp
(-1-1/\epsilon). The distribution function for conductivity of finite samples
at the percolation threshold is established. It is shown that the central body
of the distribution is given by a universal scaling function and only the
low-conductivity tail of distribution remains -dependent. Variable
range hopping conductivity in the polymer network is studied: both DC
conductivity and AC conductivity in the multiple hopping regime are found to
obey a quasi-1d Mott law. The present results are consistent with electrical
properties of poorly conducting polymers.Comment: 27 pages, RevTeX, epsf, 5 .eps figures, to be published in Phys. Rev.
Reverberation Mapping Results for Five Seyfert 1 Galaxies
We present the results from a detailed analysis of photometric and
spectrophotometric data on five Seyfert 1 galaxies observed as a part of a
recent reverberation mapping program. The data were collected at several
observatories over a 140-day span beginning in 2010 August and ending in 2011
January. We obtained high sampling-rate light curves for Mrk 335, Mrk 1501,
3C120, Mrk 6, and PG2130+099, from which we have measured the time lag between
variations in the 5100 Angstrom continuum and the H-beta broad emission line.
We then used these measurements to calculate the mass of the supermassive black
hole at the center of each of these galaxies. Our new measurements
substantially improve previous measurements of MBH and the size of the broad
line-emitting region for four sources and add a measurement for one new object.
Our new measurements are consistent with photoionization physics regulating the
location of the broad line region in active galactic nuclei.Comment: 45 pages, 5 figures. Accepted for publication in ApJ. For a brief
video explaining the key results of this paper, see
http://www.youtube.com/user/OSUAstronom
Phonon-assisted radiofrequency absorption by gold nanoparticles resulting in hyperthermia
It is suggested that in gold nanoparticles (GNPs) of about 5 nm sizes used in
the radiofrequency (RF) hyperthermia, an absorption of the RF photon by the
Fermi electron occurs with involvement of the longitudinal acoustic vibrational
mode (LAVM), the dominating one in the distribution of vibrational density of
states (VDOS). This physical mechanism helps to explain two observed phenomena:
the size dependence of the heating rate (HR) in GNPs and reduced heat
production in aggregated GNPs. The argumentation proceeds within the
one-electron approximation, taking into account the discretenesses of energies
and momenta of both electrons and LAVMs. The heating of GNPs is thought to
consist of two consecutive processes: first, the Fermi electron absorbs
simultaneously the RF photon and the LAVM available in the GNP; hereafter the
excited electron gets relaxed within the GNP's boundary, exciting a LAVM with
the energy higher than that of the previously absorbed LAVM. GNPs containing
the Ta and/or Fe impurities are proposed for the RF hyperthermia as promising
heaters with enhanced HRs, and GNPs with rare-earth impurity atoms are also
brought into consideration. It is shown why the maximum HR values should be
expected in GNPs with about 5-7 nm size.Comment: proceedings at the NATO Advanced Research workshop FANEM-2015 (Minsk,
May 25-27, 2015). To be published in the final form in: "Fundamental and
Applied NanoElectroMagnetics" (Springer Science + Business Media B.V.
Reverberation Mapping of the Seyfert 1 Galaxy NGC 7469
A large reverberation mapping study of the Seyfert 1 galaxy NGC 7469 has
yielded emission-line lags for Hbeta 4861 and He II 4686 and a central black
hole mass measurement of about 10 million solar masses, consistent with
previous measurements. A very low level of variability during the monitoring
campaign precluded meeting our original goal of recovering velocity-delay maps
from the data, but with the new Hbeta measurement, NGC 7469 is no longer an
outlier in the relationship between the size of the Hbeta-emitting broad-line
region and the AGN luminosity. It was necessary to detrend the continuum and
Hbeta and He II 4686 line light curves and those from archival UV data for
different time-series analysis methods to yield consistent results.Comment: 9 Pages, 7 figures, 6 tables. Accepted for publication in The
Astrophysical Journa
Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA
We present possible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next decade, with the intention of providing information to the astronomy community to facilitate planning for multi-messenger astronomy with gravitational waves. We estimate the sensitivity of the network to transient gravitational-wave signals, and study the capability of the network to determine the sky location of the source. We report our findings for gravitational-wave transients, with particular focus on gravitational-wave signals from the inspiral of binary neutron star systems, which are the most promising targets for multi-messenger astronomy. The ability to localize the sources of the detected signals depends on the geographical distribution of the detectors and their relative sensitivity, and 90 % credible regions can be as large as thousands of square degrees when only two sensitive detectors are operational. Determining the sky position of a significant fraction of detected signals to areas of 5–20deg2 requires at least three detectors of sensitivity within a factor of ∼ 2 of each other and with a broad frequency bandwidth. When all detectors, including KAGRA and the third LIGO detector in India, reach design sensitivity, a significant fraction of gravitational-wave signals will be localized to a few square degrees by gravitational-wave observations alone
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