1,734,683 research outputs found
High risk and probability of progression to osteoporosis at 10 years in HIV-infected individuals: the role of PIs
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Journal of antimicrobial chemotherapy following peer review. The version of record Negredo, E., Langohr, K., Bonjoch, A., Perez, N., Estany, C., Puig, J., Echevarría, P., Clotet, B., Gómez Melis, G. High risk and probability of progression to osteoporosis at 10 years in HIV-infected individuals: the role of PIs. "Journal of antimicrobial chemotherapy", 1 Setembre 2018, vol. 73, núm. 9, p. 2452-2459 is available online at: https://academic.oup.com/jac/article-abstract/73/9/2452/5026321.Peer ReviewedPostprint (author's final draft
Block Card 2452 Densmore Drive
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Modern Colonial Style | 2452 Densmore Drive (Toledo, Ohio) | Dwelling | Old Orchard Addition (Toledo, Ohio) | Old Orchard Area (Toledo, Ohio
Guthrie Family Papers (SC 2452)
Finding aid and scans (Click on Additional Files below) for Manuscripts Small Collection 2452. Civil War pension documents, chiefly affidavits describing his service, of William Guthrie, who served with the 13th Kentucky Cavalry; letter written to A. C. Guthrie in Farmington, Texas; and letter written to William Guthrie in Burkesville, Kentucky upon the death of A. C. Guthrie
Block Card 2452 Lawton Avenue
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Cross gabled | 2452 Lawton Avenue (Toledo, Ohio) | Dwelling | Linden Heights Addition (Toledo, Ohio) | Auburndale Area (Toledo, Ohio) | Folk House Styl
Block Card 2452 Lambert Drive
This image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 2452 Lambert Drive (Toledo, Ohio) | Bungalow Style | Williamsburg style | DeVeaux (Toledo, Ohio) | Extension of Mellwood (Toledo, Ohio
ATCA radio observation of the region around IGR J18245-2452
The new INTEGRAL transient source IGR J18245-2452 (ATel #4925 #4927 #4929 #4934 #4959 #4960 #4961 #4964) was observed with the radio Australia Telescope Compact Array on 2013-04-05 for a total of 6 hours. The array was in H214 configuration. The observation was performed at two different frequencies: 9 and 5.5 GHz. ATCA detected at both frequencies a single source in the vicinity of IGR J18245-2452, at R.A. 18h24m32.51s Dec. -24°52′07.9′′ (with a 90% confidence error of 0.5′′). This position is at 4.8′′ from the best fit position of IGR J18245-2452 (Heinke et al., ATel #4927), estimated by Swift/XRT with an uncertainty of 3.5′′ at a 90% confidence level (c.l.)
Global poverty: A first estimation of its uncertainty
ISSN:2468-0532ISSN:2452-2929ISSN:2452-292
Hiccup accretion in the swinging pulsar IGR J18245-2452
The source IGR J18245-2452 is the fifteenth discovered accreting millisecond X-ray pulsar and the first neutron star to show direct evidence of a transition between accretion- and rotation-powered emission states. These swings provided the strongest confirmation to date of the pulsar recycling scenario. During the two XMM-Newton observations that were carried out while the source was in outburst in April 2013, IGR J18245-2452 displayed a unique and peculiar X-ray variability. In this work, we report on a detailed analysis of the XMM-Newton data and focus on the timing and spectral variability of the source. In the 0.4-11 keV energy band, IGR J18245-2452 continuously switched between lower and higher intensity states, with typical variations in flux by factor of ~100 on time scales as short as a few seconds. These variations in the source intensity were sometimes accompanied by dramatic spectral hardening, during which the X-ray power-law photon index varied from Γ = 1.7 to Γ = 0.9. The pulse profiles extracted at different count-rates, hardnesses, and energies also showed a complex variability. These phenomena were never observed in accreting millisecond X-ray pulsars, at least not on such a short time-scale. Fast variability was also found in the 5.5 and 9 GHz ATCA radio observations that were carried out for about 6 h during the outburst. We interpret the variability observed from IGR J18245-2452 in terms of a hiccup accretion phase, during which the accretion of material from the inner boundary of the Keplerian disk is reduced by the onset of centrifugal inhibition of accretion, possibly causing the launch of outflows. Changes across accretion and propeller regimes have been long predicted and reproduced by magnetohydrodynamic simulations of accreting millisecond X-ray pulsars, but have never observed to produce as extreme a variability as that shown by IGR J18245-2452
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