bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Molecular-line Study of the Interstellar Bullet Engine IRAS05506+2414
Authors: Sahai Raghvendra , Lee Chin-Fei , Contreras Carmen Sánchez , Patel Nimesh , R. Morris Mark , Claussen Mark 
Published: November 2017

Abstract
We present interferometric and single-dish molecular line observations of the interstellar bullet-outflow source IRAS 05506+2414, whose wide-angle bullet spray is similar to the Orion BN/KL explosive outflow and likely arises from an entirely different mechanism than the classical accretion-disk-driven bipolar flows in young stellar objects. The bullet-outflow source is associated with a large pseudo-disk and three molecular outflows—a high-velocity outflow (HVO), a medium-velocity outflow (MVO), and a slow, extended outflow (SEO). The size (mass) of the pseudo-disk is 10,350 au × 6400 au (0.64–0.17 M
⊙); from a model-fit assuming infall and rotation, we derive a central stellar mass of 8–19 M
⊙. The HVO (MVO) has an angular size ∼5180 (∼3330) au and a projected outflow velocity of ∼140 km s−1 (∼30 km s−1). The SEO size (outflow speed) is ∼0.9 pc (∼6 km s−1). The HVO’s axis is aligned with (orthogonal to) that of the SEO (pseudo-disk). The velocity structure of the MVO is unresolved. The scalar momenta in the HVO and SEO are very similar, suggesting that the SEO has resulted from the HVO interacting with ambient-cloud material. The bullet spray shares a common axis with the pseudo-disk and has an age comparable to that of MVO (few hundred years), suggesting that these three structures are intimately linked. We discuss several models for the outflows in IRAS 05506+2414 (including dynamical decay of a stellar cluster, chance encounter of a runaway star with a dense cloud, and close passage of two protostars), and conclude that second-epoch imaging to derive proper motions of the bullets and nearby stars can help to discriminate between them.
Investigating the Evolution of the Dual AGN System ESO 509-IG066
Authors: Kosec P. , Brightman M. , Stern D. , Müller-Sánchez F. , Koss M. , Oh K. , Assef R. J. , Gandhi P. , Harrison F. A. , Jun H. , Masini A. , Ricci C. , Walton D. J. , Treister E. , Comerford J. , Privon G. 
Published: November 2017

Abstract
We analyze the evolution of the dual active galactic nucleus (AGN) in ESO 509-IG066, a galaxy pair located at z = 0.034 whose nuclei are separated by 11 kpc. Previous observations with XMM-Newton on this dual AGN found evidence for two moderately obscured (

∼ 1022 cm−2) X-ray luminous (

∼ 1043 erg s−1) nuclear sources. We present an analysis of subsequent Chandra, NuSTAR, and Swift/XRT observations that show one source has dropped in flux by a factor of 10 between 2004 and 2011, which could be explained by either an increase in the absorbing column or an intrinsic fading of the central engine, possibly due to a decrease in mass accretion. Both of these scenarios are predicted by galaxy merger simulations. The source that has dropped in flux is not detected by NuSTAR, which argues against absorption, unless it is extreme. However, new Keck/LRIS optical spectroscopy reveals a previously unreported broad Hα line that is highly unlikely to be visible under the extreme absorption scenario. We therefore conclude that the black hole in this nucleus has undergone a dramatic drop in its accretion rate. From AO-assisted near-infrared integral-field spectroscopy of the other nucleus, we find evidence that the galaxy merger is having a direct effect on the kinematics of the gas close to the nucleus of the galaxy, providing a direct observational link between the galaxy merger and the mass accretion rate onto the black hole.
Observation of a Large-scale Quasi-circular Secondary Ribbon Associated with Successive Flares and a Halo CME
Authors: Lim Eun-Kyung , Yurchyshyn Vasyl , Kumar Pankaj , Cho Kyuhyoun , Jiang Chaowei , Kim Sujin , Yang Heesu , Chae Jongchul , Cho Kyung-Suk , Lee Jeongwoo 
Published: November 2017

Abstract
Solar flare ribbons provide an important clue to the magnetic reconnection process and associated magnetic field topology in the solar corona. We detected a large-scale secondary flare ribbon of a circular shape that developed in association with two successive M-class flares and one coronal mass ejection. The ribbon revealed interesting properties such as (1) a quasi-circular shape and enclosing the central active region (AR); (2) the size as large as 500″ by 650″; (3) successive brightenings in the clockwise direction at a speed of 160 km s−1 starting from the nearest position to the flaring sunspots; (4) radial contraction and expansion in the northern and the southern part, respectively, at speeds of ≤10 km s−1. Using multi-wavelength data from Solar Dynamics Observatory, RHESSI, XRT, and Nobeyama, along with magnetic field extrapolations, we found that: (1) the secondary ribbon location is consistent with those of the field line footpoints of a fan-shaped magnetic structure that connects the flaring region and the ambient decaying field; (2) the second M2.6 flare occurred when the expanding coronal loops driven by the first M2.0 flare encountered the background decayed field; (3) immediately after the second flare, the secondary ribbon developed along with dimming regions. Based on our findings, we suggest that interaction between the expanding sigmoid field and the overlying fan-shaped field triggered the secondary reconnection that resulted in the field opening and formation of the quasi-circular secondary ribbon. We thus conclude that interaction between the AR and the ambient large-scale fields should be taken into account to fully understand the entire eruption process.
Surges and Si iv Bursts in the Solar Atmosphere: Understanding IRIS and SST Observations through RMHD Experiments
Authors: Nóbrega-Siverio D. , Martínez-Sykora J. , Moreno-Insertis F. , Voort L. Rouppe van der 
Published: November 2017

Abstract
Surges often appear as a result of the emergence of magnetized plasma from the solar interior. Traditionally, they are observed in chromospheric lines such as Hα 6563

and Ca ii 8542

. However, whether there is a response to the surge appearance and evolution in the Si iv lines or, in fact, in many other transition region lines has not been studied. In this paper, we analyze a simultaneous episode of an Hα surge and a Si iv burst that occurred on 2016 September 03 in active region AR 12585. To that end, we use coordinated observations from the Interface Region Imaging Spectrograph and the Swedish 1-m Solar Telescope. For the first time, we report emission of Si iv within the surge, finding profiles that are brighter and broader than the average. Furthermore, the brightest Si iv patches within the domain of the surge are located mainly near its footpoints. To understand the relation between the surges and the emission in transition region lines like Si iv, we have carried out 2.5D radiative MHD (RMHD) experiments of magnetic flux emergence episodes using the Bifrost code and including the nonequilibrium ionization of silicon. Through spectral synthesis, we explain several features of the observations. We show that the presence of Si iv emission patches within the surge, their location near the surge footpoints and various observed spectral features are a natural consequence of the emergence of magnetized plasma from the interior to the atmosphere and the ensuing reconnection processes.
Modeling The Most Luminous Supernova Associated with a Gamma-Ray Burst, SN 2011kl
Authors: Wang Shan-Qin , Cano Zach , Wang Ling-Jun , Zheng WeiKang , Dai Zi-Gao , Filippenko Alexei V. , Liu Liang-Duan 
Published: November 2017

Abstract
We study the most luminous known supernova (SN) associated with a gamma-ray burst (GRB), SN 2011kl. The photospheric velocity of SN 2011kl around peak brightness is 21,000 ± 7000 km s−1. Owing to different assumptions related to the light-curve (LC) evolution (broken or unbroken power-law function) of the optical afterglow of GRB 111209A, different techniques for the LC decomposition, and different methods (with or without a near-infrared contribution), three groups derived three different bolometric LCs for SN 2011kl. Previous studies have shown that the LCs without an early-time excess preferred a magnetar model, a magnetar+56Ni model, or a white dwarf tidal disruption event model rather than the radioactive heating model. On the other hand, the LC shows an early-time excess and dip that cannot be reproduced by the aforementioned models, and hence the blue-supergiant model was proposed to explain it. Here, we reinvestigate the energy sources powering SN 2011kl. We find that the two LCs without the early-time excess of SN 2011kl can be explained by the magnetar+56Ni model, and the LC showing the early excess can be explained by the magnetar+56Ni model taking into account the cooling emission from the shock-heated envelope of the SN progenitor, demonstrating that this SN might primarily be powered by a nascent magnetar.
The Konus-Wind Catalog of Gamma-Ray Bursts with Known Redshifts. I. Bursts Detected in the Triggered Mode
Authors: Tsvetkova A. , Frederiks D. , Golenetskii S. , Lysenko A. , Oleynik P. , Pal'shin V. , Svinkin D. , Ulanov M. , Cline T. , Hurley K. , Aptekar R. 
Published: November 2017

Abstract
In this catalog, we present the results of a systematic study of gamma-ray bursts (GRBs) with reliable redshift estimates detected in the triggered mode of the Konus-Wind (KW) experiment during the period from 1997 February to 2016 June. The sample consists of 150 GRBs (including 12 short/hard bursts) and represents the largest set of cosmological GRBs studied to date over a broad energy band. From the temporal and spectral analyses of the sample, we provide the burst durations, the spectral lags, the results of spectral fits with two model functions, the total energy fluences, and the peak energy fluxes. Based on the GRB redshifts, which span the range

, we estimate the rest-frame, isotropic-equivalent energy, and peak luminosity. For 32 GRBs with reasonably constrained jet breaks, we provide the collimation-corrected values of the energetics. We consider the behavior of the rest-frame GRB parameters in the hardness–duration and hardness–intensity planes, and confirm the “Amati” and “Yonetoku” relations for Type II GRBs. The correction for the jet collimation does not improve these correlations for the KW sample. We discuss the influence of instrumental selection effects on the GRB parameter distributions and estimate the KW GRB detection horizon, which extends to

, stressing the importance of GRBs as probes of the early universe. Accounting for the instrumental bias, we estimate the KW GRB luminosity evolution, luminosity and isotropic-energy functions, and the evolution of the GRB formation rate, which are in general agreement with those obtained in previous studies.
Diffusive Cosmic-Ray Acceleration at Shock Waves of Arbitrary Speed with Magnetostatic Turbulence. I. General Theory and Correct Nonrelativistic Speed Limit
Authors: Schlickeiser R. , Oppotsch J. 
Published: November 2017

Abstract
The analytical theory of diffusive acceleration of cosmic rays at parallel stationary shock waves of arbitrary speed with magnetostatic turbulence is developed from first principles. The theory is based on the diffusion approximation to the gyrotropic cosmic-ray particle phase-space distribution functions in the respective rest frames of the up- and downstream medium. We derive the correct cosmic-ray jump conditions for the cosmic-ray current and density, and match the up- and downstream distribution functions at the position of the shock. It is essential to account for the different particle momentum coordinates in the up- and downstream media. Analytical expressions for the momentum spectra of shock-accelerated cosmic rays are calculated. These are valid for arbitrary shock speeds including relativistic shocks. The correctly taken limit for nonrelativistic shock speeds leads to a universal broken power-law momentum spectrum of accelerated particles with velocities well above the injection velocity threshold, where the universal power-law spectral index

is independent of the flow compression ratio r. For nonrelativistic shock speeds, we calculate for the first time the injection velocity threshold, settling the long-standing injection problem for nonrelativistic shock acceleration.
Le programme ID de SKEMA Business School
Authors: Ciussi Mélanie , Vian Dominique 
Published: November 2017

Nous inaugurons avec cet article une nouvelle rubrique baptisée « Pratiques pédagogiques innovantes ». L’idée est de faire circuler l’information sur les expérimentations en cours dans nos institutions autour des pédagogies entrepreneuriales, afin de faire réagir des collègues et de les inspirer pour qu’ils puissent expérimenter et documenter progressivement cette pratique dans d’autres contextes. Mélanie Ciussi et Dominique Vian, avec le programme ID de Skema Business School, sont les premiers à se lancer dans l’aventure.
Endoctriner les corps sous le régime de Vichy. le cas des chantiers de la jeunesse (1940-1944)
Authors: Pécout Christophe 
Published: November 2017

Entre juillet 1940 et juin 1944, les Chantiers de la Jeunesse in¬carnent l’organisation de jeunesse emblématique du régime de Vichy. Instrument d’endoctrinement idéologique, ils s’inscrivent dans le projet eugéniste de régénération de la race française. Dans cette perspective, les Chantiers de la Jeunesse accordent une place prépondérante à la formation virile des jeunes. L’objectif est d’endurcir, de discipliner, d’encadrer et de redresser le corps de cette jeunesse mobilisée. Or, cette détermination des Chantiers à modeler une jeunesse sportive « maréchalisée », vitrine propagandiste du nouveau régime, se révélera, au final, un échec éducatif, témoignage de la faillite de la Révolution nationale.
La politique de certification tout au long de la vie : vers la labellisation des actifs ?
Authors: Maillard Fabienne 
Published: November 2017

Résumé Pour rendre les individus « acteurs de leur carrière » et développer la flexisécurité professionnelle, plusieurs initiatives ont été successivement prises par les pouvoirs publics pour élever le niveau d’éducation de la population active et favoriser l’accès du plus grand nombre à un diplôme à « finalité professionnelle ». Ainsi, d’importantes réformes ont eu lieu dans le système éducatif et la formation « professionnelle tout au long de la vie », au nom d’une meilleure fluidité du marché du travail et d’une plus grande mobilité des actifs. Le primat désormais accordé à la certification des compétences et le projet de mise en adéquation des emplois et des certifications posent pourtant de nombreuses questions, qui ne se réduisent pas aux conditions de faisabilité des mesures promulguées ou envisagées. S’agit-il en effet de garantir l’employabilité et la mobilité des travailleurs ou bien de légitimer l’individualisation de la relation salariale et d’imposer à chacun de faire la preuve, tout au long de la vie, de son employabilité ?
Socialiser les risques de recrutement : la Préparation opérationnelle à l’emploi
Authors: Gräbener Josua 
Published: November 2017

Résumé La formation des demandeurs d’emploi suscite de nombreux espoirs dans la lutte contre le chômage. Les partenariats entre Pôle emploi et des intermédiaires du marché du travail se sont donc multipliés ces dernières années. Le dispositif de la Préparation opérationnelle à l’emploi connaît un succès particulier et constitue à ce titre un bon révélateur des dynamiques en cours dans le champ de la formation continue. Des subventions publiques et des cotisations salariales sont utilisées pour que des employeurs n’aient pas à former leurs nouvelles recrues aux postes de travail à pourvoir, avec des garanties minimales pour les demandeurs d’emploi. Comment et sous quelles conditions une telle idée a-t-elle pu s’imposer, quels sont les avantages escomptés et effectifs pour les travailleurs, quelles en sont les implications politiques ? On verra d’abord que la POE émerge dans un contexte propice ; puis qu’elle s’est généralisée à la faveur d’un appui par des acteurs centraux ; et enfin qu’elle participe à entériner des évolutions idéologiques plus larges dégageant les employeurs de toute responsabilité.
Rock Stress Around Noncircular Tunnel: a New Simple Mathematical Method
Authors: Shen Wenlong , Wang Xiangyu , Bai Jianbiao , Li Wenfeng , Yu Yang 
Published: November 2017

AbstractA new simple mathematical method has been proposed to predict rock stress around a noncircular tunnel and the method is calibrated and validated with a numerical model. It can be found that the tunnel shapes and polar angles affect the applicable zone of the theoretical model significantly and the applicable zone of a rectangular tunnel was obtained using this method. The method can be used to predict the values of the concentrated stress, and to analyze the change rate of rock stress and back to calculate the mechanical boundary condition in the applicable zone. The results of the stress change rate indicate that the horizontal stress is negatively related to the vertical boundary load and positively related to the horizontal boundary load. The vertical stress is negatively related to the horizontal boundary load and positively related to the vertical boundary load. These findings can be used to explain the evolution of the vertical increment in stress obtained with field-based borehole stress monitoring.
A Unified Instability Region for the Extended Taylor–Goldstein Problem of Hydrodynamic Stability
Authors: Sridevi S. , Dou Huashu , Ganesh V. 
Published: November 2017

AbstractWe consider inviscid, incompressible shear flows with variable density and variable cross section. For this problem, we derived a new estimate for the growth rate of an unstable mode and a parabolic instability region which intersects semiellipse instability region under some condition.
An Adaptive Semi-Lagrangian Level-Set Method for Convection-Diffusion Equations on Evolving Interfaces
Authors: Shi Weidong , Xu Jianjun , Shu Shi 
Published: November 2017

AbstractA new Semi-Lagrangian scheme is proposed to discretize the surface convection-diffusion equation. The other involved equations including the the level-set convection equation, the re-initialization equation and the extension equation are also solved by S-L schemes. The S-L method removes both the CFL condition and the stiffness caused by the surface Laplacian, allowing larger time step than the Eulerian method. The method is extended to the block-structured adaptive mesh. Numerical examples are given to demonstrate the efficiency of the S-L method.
Actualités sur les encéphalopathies spongiformes animales
Authors: Brugère-Picoux Jeanne , Rérat Alain 
Published: November 2017

L’observation au Royaume-Uni de cas de maladie de Creutzfeldt-Jakob (MCJ) chez deux adolescents et quatre fermiers repose la question d’un lien éventuel entre la MCJ et l’encéphalopathie spongiforme bovine (ESB). L’enzootie d’ESB est la conséquence de l’incorporation de farines de viandes contaminées dans l’alimentation des bovins en 1981/1982. L’interdiction de ces protéines a permis de prévenir, à partir de 1988, la persistance de ce type de contamination. Néanmoins, l’apparition de cas d’ESB chez des animaux nés après cette interdiction montre que du matériel infectant est encore présent dans les aliments destinés aux bovins (et qu’il y a peut-être une transmission maternelle).
Des mesures ont été prises au Royaume-Uni pour protéger les santés publique et animale. Il s’agit en particulier de l’interdiction, en 1989, des “abats spécifiés bovins” (cette interdiction étant étendue en 1994 au thymus et à l’intestin des veaux abattus pour la consommation humaine). Ces mesures permettent de minimiser le risque d’une contamination par l’agent de l’ESB. Bien que, probablement, les risques liés à l’ESB soient limités au Royaume-Uni, il semble justifié d’appliquer les mêmes interdictions sur les veaux importés de ce pays.
Félix Terrier, transfuge de l’École Vétérinaire d’Alfort et apôtre de la Chirurgie Aseptique Française (1837-1908)
Authors: Constantin André 
Published: November 2017

Félix Terrier naquit dans la petite bourgeoisie parisienne. Il suivit d’abord les cours de l’École Vétérinaire d’Alfort (1854-1858) où il se distingua. Mais, attiré par la grande chirurgie hospitalière, il fit en sorte de s’en faire exclure à l’occasion d’un chahut d’étudiants.
Cet élève surdoué brûla les étapes de l’enseignement médical et après son Agrégation de chirurgie fut nommé chirurgien des Hôpitaux (1873).
Pastorien convaincu, il usa de la tribune que lui offrait son service de chirurgie à l’Hôpital Bichat, pour mettre au point et faire connaître les règles de l’asepsie chirurgicale toujours en usage de nos jours. Il put ainsi réussir des opérations considérées comme impossibles.
Choir singing: Performing Identities and Loyalties
Authors: Santi Matej 
Published: November 2017

This paper traces the practice of choral singing of the three major ethnolinguistic groups – Italians, Slovenians, Germans – in pre-war Trieste, while the city was still part of the Habsburg Monarchy. Through widespread reviews in the media, choral singing in different social and linguistic contexts became politicised, with the goal of establishing political and national alliances.
Harlots and Hunted: Prostitutes in O'Neill's Work
Authors: Lee E. Andrew 
Published: November 2017

Abstract
Prostitutes (harlots, whores, or tarts) appear throughout Eugene O'Neill's canon in various contexts, from his early play The Web to later works including The Great God Brown, The Iceman Cometh, and Long Day's Journey Into Night. These characters form a complex collection of personalities, including the disaffected (Rose Thomas), the romantic (Anna Christie), the maternal (Cybel and Fat Violet), and the monogamous (Sara Melody Harford). The common thread linking all of these characters is that the prostitutes invariably serve to reveal flaws and inadequacies of the male characters. O'Neill's own experience with prostitutes informs his portrait of these women.
Finding a Home: Salome Jens on Performing O'Neill
Authors: McGovern Dan 
Published: November 2017

Abstract
Salome Jens portrayed Josie Hogan in the Circle in the Square production of A Moon for the Misbegotten that first convinced critics of the merits of the play. In an interview with Dan McGovern, president of the board of the Eugene O'Neill Foundation, Jens discussed her interpretations of Josie Hogan, Abbie Putnam, and Mary Tyrone, as well as working with José Quintero, Theodore Mann, and Jason Robards. José Quintero cast Jens in the American premiere of Genet's The Balcony. Jens later replaced Colleen Dewhurst in Quintero's production of Desire under the Elms. Quintero gave Jens the key to Mary Tyrone when he directed her in a reading of Long Day's Journey Into Night. In O'Neill Jens “met my playwright. He and I had come together: craft and writing. That was … like going home.” Jens remains active in theater, performing, and teaching.
Determinants to Tax Evasion Behavior in Vietnam
Authors: Nguyen Thu Hang 
Published: November 2017

In Vietnam, tax evasion becomes a serious challenge facing tax administration and deterring tax revenue performance. The scarcity of evidence on determinants on tax evasion in Vietnam is a call for the author to design empirical study that will contribute to better understanding of the problem. This study examines determinants to tax evasion behavior in Vietnam, i.e. personal income tax case. Further, the study attempts to understand the underlying reasons for non-compliance decision. Data is gathered through survey questionnaire and interviews, and analyzed using SPSS software. Results suggest that government performance and tax knowledge are two real determinant factors to tax evasion in Vietnam. Key words: tax evasion, determinants to tax evasion;