bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementation of interdisciplinary neurosurgery morning huddle: cost-effectiveness and increased patient satisfaction
Authors: Chan Alvin Y. , Vadera Sumeet 
Published: April 2017

OBJECTIVEMorning discharge huddles consist of multiple members of the inpatient care team and are used to improve communication and patient care and to facilitate patient flow through the hospital. However, the effect of huddles on hospital costs and patient satisfaction has not been clearly elucidated. The authors investigated how a neurosurgeryled interdisciplinary daily morning huddle affected various costs of patient care and patient satisfaction.METHODSHuddles were conducted at 8:30 am Monday through Friday, and lasted approximately 30 minutes. The authors retrospectively looked at the average monthly costs per patient for a variety of variables (e.g., average ICU days, average step-down days, average direct cost, average laboratory costs, average pharmacy costs, hospital ratings, and hospital recommendations) and compared the results from before and after implementation of the huddle.RESULTSThere was a significant decrease in the number of ICU days, average laboratory costs, and average pharmacy costs per patient after the huddle was implemented; decreased laboratory and pharmacy costs produced $1,408,047.66 in savings. There was no significant difference found for the average direct cost. The percentage of patients who rated the hospital as a 9 or 10 significantly increased. The percentage who answered “strongly agree” when asked whether they would recommend the hospital also significantly increased.CONCLUSIONSA short morning huddle consisting of key members of the inpatient team may result in substantial hospital savings derived from reduced ICU days and laboratory and pharmacy costs as well as increased patient satisfaction.
Aneurysm wall enhancement on magnetic resonance imaging as a risk factor for progression of unruptured vertebrobasilar dissecting aneurysms after reconstructive endovascular treatment
Authors: Zhang Yisen , Sui Binbin , Liu Jian , Wang Yang , Tian Zhongbin , Chen Junfan , Wu Zhongxue , Yang Xinjian 
Published: April 2017

OBJECTIVEThe recurrence rate of vertebrobasilar dissecting aneurysms (VBDAs) after reconstructive endovascular treatment (EVT) is relatively high. The aneurysm wall enhancement on high-resolution MRI (HRMRI) reportedly predicts an unsteady state of an intracranial aneurysm. The authors used HRMRI to investigate the relationship between wall enhancement on HRMRI and progression of VBDAs after reconstructive EVT.METHODSFrom January 2012 to December 2015, patients with an unruptured VBDA who underwent reconstructive EVT were enrolled in this study. Preoperative enhanced HRMRI was performed to evaluate radiological characteristics. The relationships between aneurysm wall enhancement and various potential risk factors were statistically analyzed. Follow-up angiographic examination was performed with digital subtraction angiography and conventional HRMRI. Cox regression analysis was performed to identify predictors of VBDA progression after reconstructive EVT.RESULTSEighty-two patients (12 women and 70 men, mean age 53.48 ± 9.23 years) with 83 VBDAs were evaluated in the current study. The average maximum diameter of the VBDAs was 11.30 ± 7.90 mm. Wall enhancement occurred in 43 VBDAs (51.81%). Among all 83 VBDAs, 62 (74.70%) were treated by stent-assisted coil embolization and 21 (25.30%) by stenting alone. The mean duration of imaging follow-up among all 82 patients was 10.55 months (range 6–45 months), and 15 aneurysms (18.07%) exhibited progression. The statistical analysis indicated no significant differences in age, sex, risk factors (high blood pressure, smoking, diabetes mellitus, and a high cholesterol level), VBDA stage, or VBDA size between enhanced and unenhanced VBDAs. Univariate Cox regression analysis showed that both the maximum diameter of the VBDAs and wall enhancement were associated with recurrence (p < 0.05). Multivariate Cox proportional hazard regression analysis showed that the maximum diameter of the VBDAs and wall enhancement on HRMRI were independent risk factors for aneurysm progression (p < 0.05).CONCLUSIONSAneurysm size and wall enhancement on HRMRI can predict the progression of VBDAs after reconstructive EVT.
Medical necessity of routine admission of children with mild traumatic brain injury to the intensive care unit
Authors: Ament Jared D. , Greenan Krista N. , Tertulien Patrick , Galante Joseph M. , Nishijima Daniel K. , Zwienenberg Marike 
Published: April 2017

OBJECTIVEApproximately 475,000 children are treated for traumatic brain injury (TBI) in the US each year; most are classified as mild TBI (Glasgow Coma Scale [GCS] Score 13–15). Patients with positive findings on head CT, defined as either intracranial hemorrhage or skull fracture, regardless of severity, are often transferred to tertiary care centers for intensive care unit (ICU) monitoring. This practice creates a significant burden on the health care system. The purpose of this investigation was to derive a clinical decision rule (CDR) to determine which children can safely avoid ICU care.METHODSThe authors retrospectively reviewed patients with mild TBI who were ≤ 16 years old and who presented to a Level 1 trauma center between 2008 and 2013. Data were abstracted from institutional TBI and trauma registries. Independent covariates included age, GCS score, pupillary response, CT characteristics, and Injury Severity Score. A composite outcome measure, ICU-level care, was defined as cardiopulmonary instability, transfusion, intubation, placement of intracranial pressure monitor or other invasive monitoring, and/or need for surgical intervention. Stepwise logistic regression defined significant predictors for model inclusion with p < 0.10. The authors derived the CDR with binary recursive partitioning (using a misclassification cost of 20:1).RESULTSA total of 284 patients with mild TBI were included in the analysis; 40 (14.1%) had ICU-level care. The CDR consisted of 5 final predictor variables: midline shift > 5 mm, intraventricular hemorrhage, nonisolated head injury, postresuscitation GCS score of < 15, and cisterns absent. The CDR correctly identified 37 of 40 patients requiring ICU-level care (sensitivity 92.5%; 95% CI 78.5–98.0) and 154 of 244 patients who did not require an ICU-level intervention (specificity 63.1%; 95% CI 56.7–69.1). This results in a negative predictive value of 98.1% (95% CI 94.1–99.5).CONCLUSIONSThe authors derived a clinical tool that defines a subset of pediatric patients with mild TBI at low risk for ICU-level care. Although prospective evaluation is needed, the potential for improved resource allocation is significant.
Noise indices adjusted to body mass index and an iterative reconstruction algorithm maintain image quality on low-dose contrast-enhanced liver CT
Authors: Zhao Yongxia , Suo Hongna , Wu Yanmin , Zuo Ziwei , Zhao Sisi , Cheng Shujie 
Published: April 2017

OBJECTIVES: Since body mass index (BMI) affects medical imaging quality or noise due to penetration of the radiation through bodies with varying sizes, this study aims to investigate and determine the optimal BMI-adjusted noise index (NI) setting on the contrast-enhanced liver CT scans obtained using 3D Smart mA technology with adaptive statistical iterative reconstruction (ASIR 2.0) algorithm. MATERIALS AND METHODS: A total of 320 patients who had contrast-enhanced liver CT scans were divided into two equal-sized groups: A (18.5 kg/m2≤BMI<24.9 kg/m2) and B (24.9 kg/m2 ≤ BMI ≤34.9 kg/m2). The two groups were randomly divided into four subgroups with an NI of 11, 13, 15, and 17. All images were reconstructed with 50% ASIR 2.0. Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated after the late arterial, portal venous, and equilibrium phases were completed. Images were evaluated by two radiologists using a subjective 0 –5 scale. Mean CT dose index of volume, dose-length product, and effective dose (ED) were calculated and compared using one-way ANOVA. RESULTS: In group A, the best-quality images obtained at the lowest ED were scanned at an NI of 15 in the late arterial phase, and at an NI of 17 in the portal venous and equilibrium phases. In group B, the best results were obtained at an NI of 13 in the late arterial phase, and at an NI of 15 in the portal venous and equilibrium phases. CONCLUSION: Adjusting NI and iterative reconstruction algorithm based on body mass index can help improve image quality on contrast-enhanced liver CT scans, even at low radiation dose.
Parameter Estimation for Gravitational-wave Bursts with the BayesWave Pipeline
Authors: Bécsy Bence , Raffai Peter , Cornish Neil J. , Essick Reed , Kanner Jonah , Katsavounidis Erik , Littenberg Tyson B. , Millhouse Margaret , Vitale Salvatore 
Published: April 2017

Abstract
We provide a comprehensive multi-aspect study of the performance of a pipeline used by the LIGO-Virgo Collaboration for estimating parameters of gravitational-wave bursts. We add simulated signals with four different morphologies (sine-Gaussians (SGs), Gaussians, white-noise bursts, and binary black hole signals) to simulated noise samples representing noise of the two Advanced LIGO detectors during their first observing run. We recover them with the BayesWave (BW) pipeline to study its accuracy in sky localization, waveform reconstruction, and estimation of model-independent waveform parameters. BW localizes sources with a level of accuracy comparable for all four morphologies, with the median separation of actual and estimated sky locations ranging from 25.°1 to 30.°3. This is a reasonable accuracy in the two-detector case, and is comparable to accuracies of other localization methods studied previously. As BW reconstructs generic transient signals with SG wavelets, it is unsurprising that BW performs best in reconstructing SG and Gaussian waveforms. The BW accuracy in waveform reconstruction increases steeply with the network signal-to-noise ratio (S/N

), reaching a 85% and 95% match between the reconstructed and actual waveform below S/N

and S/N

, respectively, for all morphologies. The BW accuracy in estimating central moments of waveforms is only limited by statistical errors in the frequency domain, and is also affected by systematic errors in the time domain as BW cannot reconstruct low-amplitude parts of signals that are overwhelmed by noise. The figures of merit we introduce can be used in future characterizations of parameter estimation pipelines.
Three-dimensional Magnetohydrodynamical Simulations of the Morphology of Head–Tail Radio Galaxies Based on the Magnetic Tower Jet Model
Authors: Gan Zhaoming , Li Hui , Li Shengtai , Yuan Feng 
Published: April 2017

Abstract
The distinctive morphology of head–tail radio galaxies reveals strong interactions between the radio jets and their intra-cluster environment, the general consensus on the morphology origin of head–tail sources is that radio jets are bent by violent intra-cluster weather. We demonstrate in this paper that such strong interactions provide a great opportunity to study the jet properties and also the dynamics of the intra-cluster medium (ICM). By three-dimensional magnetohydrodynamical simulations, we analyze the detailed bending process of a magnetically dominated jet, based on the magnetic tower jet model. We use stratified atmospheres modulated by wind/shock to mimic the violent intra-cluster weather. Core sloshing is found to be inevitable during the wind-cluster core interaction, which induces significant shear motion and could finally drive ICM turbulence around the jet, making it difficult for the jet to survive. We perform a detailed comparison between the behavior of pure hydrodynamical jets and the magnetic tower jet and find that the jet-lobe morphology could not survive against the violent disruption in all of our pure hydrodynamical jet models. On the other hand, the head–tail morphology is well reproduced by using a magnetic tower jet model bent by wind, in which hydrodynamical instabilities are naturally suppressed and the jet could always keep its integrity under the protection of its internal magnetic fields. Finally, we also check the possibility for jet bending by shock only. We find that shock could not bend the jet significantly, and thus could not be expected to explain the observed long tails in head–tail radio galaxies.
Updated Evolutionary Sequences for Hydrogen-deficient White Dwarfs
Authors: Camisassa María E. , Althaus Leandro G. , Rohrmann René D. , García-Berro Enrique , Torres Santiago , Córsico Alejandro H. , Wachlin Felipe C. 
Published: April 2017

Abstract
We present a set of full evolutionary sequences for white dwarfs with hydrogen-deficient atmospheres. We take into account the evolutionary history of the progenitor stars, all the relevant energy sources involved in the cooling, element diffusion in the very outer layers, and outer boundary conditions provided by new and detailed non-gray white dwarf model atmospheres for pure helium composition. These model atmospheres are based on the most up-to-date physical inputs. Our calculations extend down to very low effective temperatures, of ∼2500 K, provide a homogeneous set of evolutionary cooling tracks that are appropriate for mass and age determinations of old hydrogen-deficient white dwarfs, and represent a clear improvement over previous efforts, which were computed using gray atmospheres.
Solar Filament Longitudinal Oscillations along a Magnetic Field Tube with Two Dips
Authors: Zhou 周 Yu-Hao 雨昊 , Zhang 张 Li-Yue 蠡岳 , Ouyang 欧 Y. 阳雨 , Chen 陈 P. F. 鹏飞 , Fang 方 C. 成 
Published: April 2017

Abstract
Large-amplitude longitudinal oscillations of solar filaments have been observed and explored for more than ten years. Previous studies are mainly based on the one-dimensional rigid flux tube model with a single magnetic dip. However, it has been noted that there might be two magnetic dips, and hence two threads, along one magnetic field line. Following previous work, we intend to investigate the kinematics of the filament longitudinal oscillations when two threads are magnetically connected, which is done by solving one-dimensional radiative hydrodynamic equations with the numerical code MPI-AMRVAC. Two different types of perturbations are considered, and the difference from previous works resulting from the interaction of the two filament threads is investigated. We find that even with the inclusion of the thread–thread interaction, the oscillation period is modified weakly, by at most 20% compared to the traditional pendulum model with one thread. However, the damping timescale is significantly affected by the thread–thread interaction. Hence, we should take it into account when applying the consistent seismology to the filaments where two threads are magnetically connected.
New Spectral Evidence of an Unaccounted Component of the Near-infrared Extragalactic Background Light from the CIBER
Authors: Matsuura Shuji , Arai Toshiaki , Bock James J. , Cooray Asantha , Korngut Phillip M. , Kim Min Gyu , Lee Hyung Mok , Lee Dae Hee , Levenson Louis R. , Matsumoto Toshio , Onishi Yosuke , Shirahata Mai , Tsumura Kohji , Wada Takehiko , Zemcov Michael 
Published: April 2017

Abstract
The extragalactic background light (EBL) captures the total integrated emission from stars and galaxies throughout the cosmic history. The amplitude of the near-infrared EBL from space absolute photometry observations has been controversial and depends strongly on the modeling and subtraction of the zodiacal light (ZL) foreground. We report the first measurement of the diffuse background spectrum at 0.8–1.7 μm from the CIBER experiment. The observations were obtained with an absolute spectrometer over two flights in multiple sky fields to enable the subtraction of ZL, stars, terrestrial emission, and diffuse Galactic light. After subtracting foregrounds and accounting for systematic errors, we find the nominal EBL brightness, assuming the Kelsall ZL model, is

nW m−2 sr−1 at 1.4 μm. We also analyzed the data using the Wright ZL model, which results in a worse statistical fit to the data and an unphysical EBL, falling below the known background light from galaxies at λ < 1.3 μm. Using a model-independent analysis based on the minimum EBL brightness, we find an EBL brightness of

nWm−2 sr−1 at 1.4 μm. While the derived EBL amplitude strongly depends on the ZL model, we find that we cannot fit the spectral data to ZL, Galactic emission, and EBL from solely integrated galactic light from galaxy counts. The results require a new diffuse component, such as an additional foreground or an excess EBL with a redder spectrum than that of ZL.
Submillimeter Array 12CO (2-1) Imaging of the NGC 6946 Giant Molecular Clouds
Authors: Wu Ya-Lin , Sakamoto Kazushi , Pan Hsi-An 
Published: April 2017

Abstract
We present a 12CO (2–1) mosaic map of the spiral galaxy NGC 6946 by combining data from the Submillimeter Array and the IRAM 30 m telescope. We identify 390 giant molecular clouds (GMCs) from the nucleus to 4.5 kpc in the disk. GMCs in the inner 1 kpc are generally more luminous and turbulent, some of which have luminosities >106 K km s−1 pc2 and velocity dispersions >10 km s−1. Large-scale bar-driven dynamics likely regulate GMC properties in the nuclear region. Similar to the Milky Way and other disk galaxies, GMC mass function of NGC 6946 has a shallower slope (index > −2) in the inner region, and a steeper slope (index < −2) in the outer region. This difference in mass spectra may be indicative of different cloud formation pathways: gravitational instabilities might play a major role in the nuclear region, while cloud coalescence might be dominant in the outer disk. Finally, the NGC 6946 clouds are similar to those in M33 in terms of statistical properties, but they are generally less luminous and turbulent than the M51 clouds.
Proton and Helium Spectra from the CREAM-III Flight
Authors: Yoon Y. S. , Anderson T. , Barrau A. , Conklin N. B. , Coutu S. , Derome L. , Han J. H. , Jeon J. A. , Kim K. C. , Kim M. H. , Lee H. Y. , Lee J. , Lee M. H. , Lee S. E. , Link J. T. , Menchaca-Rocha A. , Mitchell J. W. , Mognet S. I. , Nutter S. , Park I. H. , Picot-Clemente N. , Putze A. , Seo E. S. , Smith J. , Wu J. 
Published: April 2017

Abstract
Primary cosmic-ray elemental spectra have been measured with the balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment since 2004. The third CREAM payload (CREAM-III) flew for 29 days during the 2007–2008 Antarctic season. Energies of incident particles above 1 TeV are measured with a calorimeter. Individual elements are clearly separated with a charge resolution of ∼0.12 e (in charge units) and ∼0.14 e for protons and helium nuclei, respectively, using two layers of silicon charge detectors. The measured proton and helium energy spectra at the top of the atmosphere are harder than other existing measurements at a few tens of GeV. The relative abundance of protons to helium nuclei is 9.53 ± 0.03 for the range of 1 TeV/n to 63 TeV/n. This ratio is considerably smaller than other measurements at a few tens of GeV/n. The spectra become softer above ∼20 TeV. However, our statistical uncertainties are large at these energies and more data are needed.
The Planetary Mass–Radius Relation and Its Dependence on Orbital Period as Measured by Transit Timing Variations and Radial Velocities
Authors: Mills Sean M. , Mazeh Tsevi 
Published: April 2017

Abstract
The two most common techniques for measuring planetary masses—the radial velocity (RV) and the transit timing variation (TTV) techniques—have been observed to yield systematically different masses for planets of similar radii. Following Steffen, we consider the effects of the observational biases of the two methods as a possible cause for this difference. We find that at short orbital periods (

day), the two methods produce statistically similar results, whereas at long periods (

day) the RV masses are systematically higher than the TTV ones. We suggest that this is consistent with an RV detection-sensitivity bias for longer periods. On the other hand, we do find an apparently significant difference between the short- and the long-period planets, obtained by both observing techniques—the mass–radius relationship parameterized as a power law has a steeper index at short periods than at long periods. We also point out another anticipated observational bias between the two techniques—multiple-planet systems with derived RV masses have substantially larger period ratios than the systems with TTV mass derivation.
Les Excerpta de libro Aristotelis Ethicorum secundum translationem de arabico in latinum
Authors: Woerther Frédérique 
Published: April 2017

Trois manuscrits — Scorialensis Q I 8 (S), Guelferbytanus Gud. Lat. 10 (G) et Vindobonensis 3134 Han. (W) — contiennent un texte intitulé « Extraits du livre des Éthiques d’Aristote, d’après la traduction latine de l’arabe » ( Excerpta de libro Aristotelis Ethicorum secundum translationem de arabico in latinum ), tirés en réalité du Commentaire moyen d’Averroès à l’ Éthique à Nicomaque . L’objet de cette recherche est de proposer une édition de ces extraits ; d’en fournir une traduction ; de discuter de la valeur éventuelle de S, G et W pour l’établissement du Commentaire d’Averroès ; d’identifier les passages du Commentaire d’Averroès utilisés par l’excerpteur, et d’en présenter brièvement les caractéristiques.
Le feu brûlera-t-il l’étoupe ? Guiral Ot sur l’influence céleste à la fin des temps
Authors: Sorokina Maria , Schabel Chris 
Published: April 2017

Dans deux questions de son commentaire des Sentences ( dist. 47-48, lib. IV), Guiral Ot O.F.M. ( ca. 1285-1348) s’interroge sur l’arrêt des mouvements célestes après l’Apocalypse et ses possibles conséquences sur le monde sublunaire. Il polémique, sans les nommer, avec Pierre Auriol et Jean Duns Scot, et il soutient une position originale : l’arrêt temporaire des corps célestes à la fin des temps. Une édition critique annotée de ces deux questions est présentée ici pour la première fois.
Care, stigmatisation sociale et femmes : un lien inexorable ?
Authors: Memmi Dominique 
Published: April 2017

Résumé Le lien entre care, stigmatisation sociale et femmes est-il inexorable ? Et si non, à quelles conditions ? La dévalorisation relative des métiers (voire des simples activités sociales) où prédominent les femmes d'une part, le care d'autre part, est assez générale dans nos sociétés. On travaillera ici la relation entre ces trois éléments à partir d'un objet où ils sont ­ et plutôt se trouvaient il y a peu ­ complètement absents : le métier d'infirmier en chambre mortuaire. L'investigation de ce rapport permet quelques constats. On apprend d'abord que parier sur le care dans un métier peut s'avérer une stratégie payante. La « féminisation » d'une profession peut ensuite s'avérer, elle aussi, avantageuse : il faut pour le comprendre s'émanciper de raisonnements déterministes et naturalisants. Mais dans ces deux cas, la réussite suppose d'exigeantes conditions.
Distribution et variation du sentiment de peur en contexte de « risque infectieux élevé »
Authors: Tarantini Clément , Peretti-Watel Patrick 
Published: April 2017

Resume Le présent article traite des discours et des pratiques organisés autour de la question du risque d'infection nosocomiale chez les professionnels de santé d'un service de « maladies infectieuses et tropicales ». Ces unités sont considérées par l'institution hospitalière comme étant « à risque infectieux élevé ». Notre enquête témoigne des liens étroits entre les représentations qu'ont ces soignants de leur contexte de travail et les processus de constructions sociales des rapports au risque d'infection. Cette analyse éclaire ainsi la production des ancrages sociaux des rapports au risque à partir, notamment, des théories de la sociologie du stigmate et des émotions, le sentiment d'être stigmatisé étant intensément lié à la peur inhérente à ce contexte professionnel « risqué ».