bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Hyaluronan Nasal Dressing on Clinical Outcome after Endoscopic Sinus Surgery: A Systematic Review and Meta-Analysis
Authors: Chen Jianneng , Wang Xuan , Chen Luzan , Liu Jie 
Published: June 2017

Introduction Hyaluronan nasal dressing might be promising in promoting reepithelialization after endoscopic sinus surgery (ESS). However, the results remain controversial. We conducted a systematic review and meta-analysis to explore the effects of hyaluronan nasal dressing on clinical outcome after ESS. Methods Medical literature data bases were systematically searched. Randomized controlled trials (RCT) that assessed the effect of hyaluronan nasal dressing on the outcome after ESS were included. The results were searched and data were extracted and assessed for quality. The primary outcome was reepithelization. Meta-analysis was performed by using the random-effect model. Results Four RCTs, which involved 352 patients, were included in the meta-analysis. Overall, compared with control intervention, hyaluronan nasal dressing significantly promoted reepithelization (odds ratio [OR] 3.18 [95% confidence interval {CI}, 1.33-7.59]; p = 0.009) and reduced edema (OR 0.45 [95% CI, 0.23-0.89]; p = 0.02) after ESS. However, hyaluronan nasal dressing failed to reduce synechia (OR 0.45 [95% CI, 0.19-1.03]; p = 0.06), crust (OR 1.00 [95% CI, 0.20-5.09]; p = 1.00), and infection (OR 0.84 [95% CI, 0.46-1.53]; p = 0.56) compared with the control group in patients who underwent ESS. Conclusion Compared with “Control intervention” indicates standard nasal dressing without hyaluronan, resorbable hyaluronan nasal dressing could significantly improve reepithelization and decrease edema but had no influence on synechia, crust, and infection after ESS.
A Parameter Study for Modeling Mg ii h and k Emission during Solar Flares
Authors: Rubio da Costa Fatima , Kleint Lucia 
Published: June 2017

Abstract
Solar flares show highly unusual spectra in which the thermodynamic conditions of the solar atmosphere are encoded. Current models are unable to fully reproduce the spectroscopic flare observations, especially the single-peaked spectral profiles of the Mg ii h and k lines. We aim to understand the formation of the chromospheric and optically thick Mg ii h and k lines in flares through radiative transfer calculations. We take a flare atmosphere obtained from a simulation with the radiative hydrodynamic code RADYN as input for a radiative transfer modeling with the RH code. By iteratively changing this model atmosphere and varying thermodynamic parameters such as temperature, electron density, and velocity, we study their effects on the emergent intensity spectra. We reproduce the typical single-peaked Mg ii h and k flare spectral shape and approximate the intensity ratios to the subordinate Mg ii lines by increasing either densities, temperatures, or velocities at the line core formation height range. Additionally, by combining unresolved upflows and downflows up to ∼250 km s−1 within one resolution element, we reproduce the widely broadened line wings. While we cannot unambiguously determine which mechanism dominates in flares, future modeling efforts should investigate unresolved components, additional heat dissipation, larger velocities, and higher densities and combine the analysis of multiple spectral lines.
η Carinae's Dusty Homunculus Nebula from Near-infrared to Submillimeter Wavelengths: Mass, Composition, and Evidence for Fading Opacity
Authors: Morris Patrick W. , Gull Theodore R. , Hillier D. John , Barlow M. J. , Royer Pierre , Nielsen Krister , Black John , Swinyard Bruce 
Published: June 2017

Abstract
Infrared observations of the dusty, massive Homunculus Nebula around the luminous blue variable η Carinae are crucial to characterize the mass-loss history and help constrain the mechanisms leading to the great eruption. We present the 2.4–670 μm spectral energy distribution, constructed from legacy Infrared Space Observatory observations and new spectroscopy obtained with the Herschel
Space Observatory. Using radiative transfer modeling, we find that the two best-fit dust models yield compositions that are consistent with CNO-processed material, with iron, pyroxene and other metal-rich silicates, corundum, and magnesium-iron sulfide in common. Spherical corundum grains are supported by the good match to a narrow 20.2 μm feature. Our preferred model contains nitrides AlN and Si3N4 in low abundances. Dust masses range from 0.25 to 0.44

, but

in both cases, due to an expected high Fe gas-to-dust ratio. The bulk of dust is within a

central region. An additional compact feature is detected at 390 μm. We obtain

= 2.96 × 106

, a 25% decline from an average of mid-IR photometric levels observed in 1971–1977. This indicates a reduction in circumstellar extinction in conjunction with an increase in visual brightness, allowing 25%–40% of optical and UV radiation to escape from the central source. We also present an analysis of 12CO and 13CO J = 5–4 through 9–8 lines, showing that the abundances are consistent with expectations for CNO-processed material. The [12C ii] line is detected in absorption, which we suspect originates in foreground material at very low excitation temperatures.
A Resolved and Asymmetric Ring of PAHs within the Young Circumstellar Disk of IRS 48
Authors: Schworer Guillaume , Lacour Sylvestre , Huélamo Nuria , Pinte Christophe , Chauvin Gaël , du Foresto Vincent Coudé , Ehrenreich David , Girard Julien , Tuthill Peter 
Published: June 2017

Abstract
For one decade, the spectral type and age of the ρ Oph object IRS-48 were subject to debate and mystery. Modeling its disk with mid-infrared to millimeter observations led to various explanations to account for the complex intricacy of dust holes and gas-depleted regions. We present multi-epoch high-angular-resolution interferometric near-infrared data of spatially resolved emissions in the first 15 au of IRS-48, known to have very strong polycyclic aromatic hydrocarbon (PAH) emissions within this dust-depleted region. We make use of new Sparse-Aperture-Masking data to instruct a revised radiative-transfer model, where spectral energy distribution fluxes and interferometry are jointly fitted. Neutral and ionized PAH, very small grains (VSG), and classical silicates are incorporated into the model; new stellar parameters and extinction laws are explored. A bright (42 L
⊙) and hence large (2.5 R
⊙) central star with A

v
= 12.5 mag and R

v
= 6.5 requires less near-infrared excess: the inner-most disk at ≈1 au is incompatible with the interferometric data. The revised stellar parameters place this system on a 4 Myr evolutionary track, four times younger than the previous estimations, which is in better agreement with the surrounding ρ Oph region and disk-lifetime observations. The disk-structure solution converges to a classical-grain outer disk from 55 au combined with an unsettled and fully resolved VSG and PAH ring, between 11 and 26 au. We find two overluminosities in the PAH ring at color-temperatures consistent with the radiative transfer simulations; one follows a Keplerian circular orbit at 14 au. We show a depletion of a factor of ≈5 of classical dust grains up to 0.3 mm compared to very small particles: the IRS-48 disk is nearly void of dust grains in the first 55 au. A 3.5 M
Jup planet on a 40 au orbit can qualitatively explain the new disk structure.
Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy
Authors: Bambi Cosimo , Cárdenas-Avendaño Alejandro , Dauser Thomas , García Javier A. , Nampalliwar Sourabh 
Published: June 2017

Abstract
We present the first X-ray reflection model for testing the assumption that the metric of astrophysical black holes is described by the Kerr solution. We employ the formalism of the transfer function proposed by Cunningham. The calculations of the reflection spectrum of a thin accretion disk are split into two parts: the calculation of the transfer function and the calculation of the local spectrum at any emission point in the disk. The transfer function only depends on the background metric and takes into account all the relativistic effects (gravitational redshift, Doppler boosting, and light bending). Our code computes the transfer function for a spacetime described by the Johannsen metric and can easily be extended to any stationary, axisymmetric, and asymptotically flat spacetime. Transfer functions and single line shapes in the Kerr metric are compared to those calculated from existing codes to check that we reach the necessary accuracy. We also simulate some observations with NuSTAR and LAD/eXTP and fit the data with our new model to show the potential capabilities of current and future observations to constrain possible deviations from the Kerr metric.
Survival of Massive Star-forming Galaxies in Cluster Cores Drives Gas-phase Metallicity Gradients: The Effects of Ram Pressure Stripping
Authors: Gupta Anshu , Yuan Tiantian , Martizzi Davide , Tran Kim-Vy H. , Kewley Lisa J. 
Published: June 2017

Abstract
Recent observations of galaxies in a cluster at z = 0.35 show that their integrated gas-phase metallicities increase with decreasing cluster-centric distance. To test whether ram pressure stripping (RPS) is the underlying cause, we use a semianalytic model to quantify the “observational bias” that RPS introduces into the aperture-based metallicity measurements. We take integral field spectroscopy of local galaxies, remove gas from their outer galactic disks via RPS, and then conduct mock slit observations of cluster galaxies at z = 0.35. Our RPS model predicts a typical cluster-scale metallicity gradient of −0.03 dex/Mpc. By removing gas from the outer galactic disks, RPS introduces a mean metallicity enhancement of

+
0.02

dex at a fixed stellar mass. This gas removal and subsequent quenching of star formation preferentially removes low-mass cluster galaxies from the observed star-forming population. As only the more massive star-forming galaxies survive to reach the cluster core, RPS produces a cluster-scale stellar mass gradient of

−
0.05
log
(

M

*

/

M

⊙

)

/Mpc. This mass segregation drives the predicted cluster-scale metallicity gradient of −0.03 dex/Mpc. However, the effects of RPS alone cannot explain the higher metallicities measured in cluster galaxies at z = 0.35. We hypothesize that additional mechanisms including steep internal metallicity gradients and self-enrichment due to gas strangulation are needed to reproduce our observations at z = 0.35.
Particle Acceleration in Two Converging Shocks∗
Authors: Wang Xin , Giacalone Joe , Yan Yihua , Ding Mingde , Wang Na , Shan Hao 
Published: June 2017

Abstract
Observations by spacecraft such as ACE, STEREO, and others show that there are proton spectral “breaks” with energy E
br at 1–10 MeV in some large CME-driven shocks. Generally, a single shock with the diffusive acceleration mechanism would not predict the “broken” energy spectrum. The present paper focuses on two converging shocks to identify this energy spectral feature. In this case, the converging shocks comprise one forward CME-driven shock on 2006 December 13 and another backward Earth bow shock. We simulate the detailed particle acceleration processes in the region of the converging shocks using the Monte Carlo method. As a result, we not only obtain an extended energy spectrum with an energy “tail” up to a few 10 MeV higher than that in previous single shock model, but also we find an energy spectral “break” occurring on ∼5.5 MeV. The predicted energy spectral shape is consistent with observations from multiple spacecraft. The spectral “break,” then, in this case is caused by the interaction between the CME shock and Earth’s bow shock, and otherwise would not be present if Earth were not in the path of the CME.
Propagation of Solar Energetic Particles in Three-dimensional Interplanetary Magnetic Fields: Radial Dependence of Peak Intensities
Authors: He H.-Q. , Zhou G. , Wan W. 
Published: June 2017

Abstract
A functional form

, where R is the radial distance of a spacecraft, was usually used to model the radial dependence of peak intensities

of solar energetic particles (SEPs). In this work, the five-dimensional Fokker–Planck transport equation incorporating perpendicular diffusion is numerically solved to investigate the radial dependence of SEP peak intensities. We consider two different scenarios for the distribution of a spacecraft fleet: (1) along the radial direction line and (2) along the Parker magnetic field line. We find that the index α in the above expression varies in a wide range, primarily depending on the properties (e.g., location and coverage) of SEP sources and on the longitudinal and latitudinal separations between the sources and the magnetic foot points of the observers. Particularly, whether the magnetic foot point of the observer is located inside or outside the SEP source is a crucial factor determining the values of index α. A two-phase phenomenon is found in the radial dependence of peak intensities. The “position” of the break point (transition point/critical point) is determined by the magnetic connection status of the observers. This finding suggests that a very careful examination of the magnetic connection between the SEP source and each spacecraft should be taken in the observational studies. We obtain a lower limit of

for empirically modeling the radial dependence of SEP peak intensities. Our findings in this work can be used to explain the majority of the previous multispacecraft survey results, and especially to reconcile the different or conflicting empirical values of the index α in the literature.
Strong Stellar-driven Outflows Shape the Evolution of Galaxies at Cosmic Dawn
Authors: Fontanot Fabio , Hirschmann Michaela , De Lucia Gabriella 
Published: June 2017

Abstract
We study galaxy mass assembly and cosmic star formation rate (SFR) at high redshift (z ≳ 4), by comparing data from multiwavelength surveys with predictions from the GAlaxy Evolution and Assembly (gaea) model. gaea implements a stellar feedback scheme partially based on cosmological hydrodynamical simulations, which features strong stellar-driven outflows and mass-dependent timescales for the re-accretion of ejected gas. In previous work, we have shown that this scheme is able to correctly reproduce the evolution of the galaxy stellar mass function (GSMF) up to z ∼ 3. We contrast model predictions with both rest-frame ultraviolet (UV) and optical luminosity functions (LFs), which are mostly sensitive to the SFR and stellar mass, respectively. We show that gaea is able to reproduce the shape and redshift evolution of both sets of LFs. We study the impact of dust on the predicted LFs, and we find that the required level of dust attenuation is in qualitative agreement with recent estimates based on the UV continuum slope. The consistency between data and model predictions holds for the redshift evolution of the physical quantities well beyond the redshift range considered for the calibration of the original model. In particular, we show that gaea is able to recover the evolution of the GSMF up to z ∼ 7 and the cosmic SFR density up to z ∼ 10.
Whole-body Magnetic Resonance Imaging in Inflammatory Arthritis: Systematic Literature Review and First Steps Toward Standardization and an OMERACT Scoring System
Authors: Østergaard Mikkel , Eshed Iris , Althoff Christian E. , Poggenborg Rene P. , Diekhoff Torsten , Krabbe Simon , Weckbach Sabine , Lambert Robert G.W. , Pedersen Susanne J. , Maksymowych Walter P. , Peterfy Charles G. , Freeston Jane , Bird Paul , Conaghan Philip G. , Hermann Kay-Geert A. 
Published: June 2017

Objective.Whole-body magnetic resonance imaging (WB-MRI) is a relatively new technique that can enable assessment of the overall inflammatory status of people with arthritis, but standards for image acquisition, definitions of key pathologies, and a quantification system are required. Our aim was to perform a systematic literature review (SLR) and to develop consensus definitions of key pathologies, anatomical locations for assessment, a set of MRI sequences and imaging planes for the different body regions, and a preliminary scoring system for WB-MRI in inflammatory arthritis.Methods.An SLR was initially performed, searching for WB-MRI studies in arthritis, osteoarthritis, spondyloarthritis, or enthesitis. These results were presented to a meeting of the MRI in Arthritis Working Group together with an MR image review. Following this, preliminary standards for WB-MRI in inflammatory arthritides were developed with further iteration at the Working Group meetings at the Outcome Measures in Rheumatology (OMERACT) 2016.Results.The SLR identified 10 relevant original articles (7 cross-sectional and 3 longitudinal, mostly focusing on synovitis and/or enthesitis in spondyloarthritis, 4 with reproducibility data). The Working Group decided on inflammation in peripheral joints and entheses as primary focus areas, and then developed consensus MRI definitions for these pathologies, selected anatomical locations for assessment, agreed on a core set of MRI sequences and imaging planes for the different regions, and proposed a preliminary scoring system. It was decided to test and further develop the system by iterative multireader exercises.Conclusion.These first steps in developing an OMERACT WB-MRI scoring system for use in inflammatory arthritides offer a framework for further testing and refinement.
« Faire vibrer les cœurs à l’unisson » Célestin Bouglé et Albert Thomas, entre science et action (1920-1932)
Authors: Dhermy-Mairal Marine 
Published: June 2017

Cet article étudie la consubstantialité, chez Célestin Bouglé, de l’action politique et de la sociologie, qui se nourrissaient l’une et l’autre. Contrairement à Émile Durkheim, le sociologue semble s’être employé à lier la sociologie à l’action politique de façon systématique. Pour le montrer, l’article part des liens d’amitié qui l’unit au directeur du Bureau international du travail, Albert Thomas, jusqu’à la mort de ce dernier en 1932. C’est en effet par la collaboration, tantôt souhaitée, tantôt effective, du Centre de documentation sociale qu’il dirigeait et du Bureau international du travail (BIT), que sera saisi le rôle qu’il prétendait attribuer à la sociologie dans la réalisation et l’articulation de ce qu’il considérait être les deux piliers de la paix : l’éducation morale et la justice sociale. Inversement, l’œuvre d’une organisation internationale telle que le BIT avait toute sa place au sein de la pensée sociologique de Célestin Bouglé.
Le rôle d’un animal dans le processus thérapeutique : quel « profil » pour quel objectif ?
Authors: Andryushchenko-Basquin Irina , Chelly Sarah 
Published: June 2017

Dans le cadre de la thérapie assistée par l’animal, il existe, depuis la fin du XX e siècle, des critères stricts de sélection et de certification des animaux-médiateurs. Il est préconisé que l’animal intervenant dans des établissements médicalisés auprès des personnes non autonomes devrait, avant tout, être contrôlable, fiable, prévisible et extrêmement sociable. Les procédures de sélection permettent ainsi de réduire les risques liés aux modes d’expression du stress chez les animaux, surtout des chiens : risque de tomber, de se faire mordre, griffer ou ignorer par un animal-médiateur. Dans le cas de Sofia, une personne âgée souffrant d’un retard mental congénital et psycho-affectif, exprimé souvent par des moments d’agressivité, la présence d’un chien ayant des troubles de comportement a permis un changement de son attitude envers des humains.
Quand Hamlet rencontre Blanche-Neige
Authors: Sottas-Clement Véronique , Terrier Fumagalli Nathalie , Richard Christèle , Santschi Gisèle 
Published: June 2017

Les auteurs, d’orientations théoriques différentes – psychanalytique et systémique – se proposent de croiser leurs regards sur le phénomène de recomposition familiale au travers du conte de Blanche-Neige, de la tragédie d’Hamlet et de références à leurs cliniques. Par le recours à la fiction, les auteurs souhaitent envisager de possibles destins aux fantasmes et sentiments œdipiens (amour, haine et rivalité) que ces remaniements familiaux peuvent réactiver. Les personnages de Blanche-Neige et d’Hamlet sont appréhendés comme les protagonistes de recompositions familiales conflictuelles, dramatiques et passionnelles. L’article se termine avec le regard porté par une systémicienne sur ces « nouvelles familles » et ouvre sur des propositions de travail thérapeutique avec elles.
La dimension transgénérationnelle dans la clinique de la douleur et de la maladie somatique grave
Authors: Rexand-Galais Franck , Maillard Benoît , Héry Catherine 
Published: June 2017

La question transgénérationnelle constitue un enjeu central de nombreuses psychothérapies initiées dans le cadre des consultations concernant l’après-coup de la maladie grave et notamment dans les demandes de prise en charge de douleurs séquellaires. Renvoyant à la possibilité d’une rupture fondamentale dans le processus de symbolisation à l’œuvre dans la transmission, elle engage le rôle joué par un ou plusieurs traumatismes enfouis et antérieurs à l’existence du sujet porteur de symptômes résistants à une thérapie individuelle ou familiale classique. L’observation clinique de Jessica, en rémission d’un cancer à l’âge de 17 ans, permet de constater le lien entre le triptyque composé par les désidentifications et identifications aussi caractéristiques de l’adolescence que de l’après-cancer, le pacte narcissique familial dans son versant dénégatif et, enfin, la douleur. Elle éclaire la nécessité d’une approche transgénérationnelle, qu’elle soit liée à une « consultance » ou à une psychothérapie familiale.
Regular Versus Releasable Sutures in Surgery for Primary Congenital Glaucoma
Authors: Bayoumi Nader H. 
Published: June 2017

Purpose:
To compare releasable and regular sutures in combined angle and filtering surgery for primary congenital glaucoma.

Methods:
A prospective study was conducted on 39 eyes (26 right eyes) of 39 children (20 boys; 19 girls) who had primary congenital glaucoma treated with combined trabeculotomy-trabeculectomy with mitomycin C and scleral flap closure with regular or releasable sutures. Follow-up was 24 months. Success rates (defined as an intraocular pressure [IOP] < 16 mm Hg without hypotony-related complications and/or lack of IOP-related progression of the disease) were studied and complications were noted.

Results:

The mean age of the study participants was 6.7 ± 5.8 months (range: 1 to 24 months; median: 5 months) in the regular suture group (20 eyes) and 5.3 ± 2.8 months (range: 1 to 13 months; median: 5 months) in the releasable suture group (19 eyes). The initial glaucoma surgery was successful in 13 (65%) and 13 (68.4%) eyes in the regular suture and releasable suture groups, respectively. The mean IOP was 17.4 ± 7.3 and 16.0 ± 5.4 mm Hg (
P
= .84) preoperatively and 8.0 ± 9.7 and 5.8 ± 3.6 mm Hg (
P
= .40) at the end of follow-up in the regular suture and releasable suture groups, respectively. There was no statistically significant difference in the clinical parameters between the two groups. Complications included rhegmatogenous retinal detachment, cataract, and superior lens subluxation, with each complication developing in one eye.

Conclusions:
Releasable sutures were not more advantageous than regular sutures in combined trabeculotomy-trabeculectomy with mitomycin C surgery for primary congenital glaucoma.

[
J Pediatr Ophthalmol Strabismus
. 2017;54(5):295–301.]