bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Solar Minimum Eclipse of 2019 July 2. II. The First Absolute Brightness Measurements and MHD Model Predictions of Fe x, xi, and xiv out to 3.4 R
⊙
Authors: Boe Benjamin , Habbal Shadia , Downs Cooper , Druckmüller Miloslav 
Published: August 2022

Abstract
We present the spatially resolved absolute brightness of the Fe x, Fe xi, and Fe xiv visible coronal emission lines from 1.08 to 3.4 R
⊙, observed during the 2019 July 2 total solar eclipse (TSE). The morphology of the corona was typical of solar minimum, with a dipole field dominance showcased by large polar coronal holes and a broad equatorial streamer belt. The Fe xi line is found to be the brightest, followed by Fe x and Fe xiv (in disk B
⊙ units). All lines had brightness variations between streamers and coronal holes, where Fe xiv exhibited the largest variation. However, Fe x remained surprisingly uniform with latitude. The Fe line brightnesses are used to infer the relative ionic abundances and line-of-sight-averaged electron temperature (T

e
) throughout the corona, yielding values from 1.25 to 1.4 MK in coronal holes and up to 1.65 MK in the core of streamers. The line brightnesses and inferred T

e
values are then quantitatively compared to the Predictive Science Inc. magnetohydrodynamic model prediction for this TSE. The MHD model predicted the Fe lines rather well in general, while the forward-modeled line ratios slightly underestimated the observationally inferred T

e
within 5%–10% averaged over the entire corona. Larger discrepancies in the polar coronal holes may point to insufficient heating and/or other limitations in the approach. These comparisons highlight the importance of TSE observations for constraining models of the corona and solar wind formation.
Infall Profiles for Supercluster-scale Filaments
Authors: Odekon Mary Crone , Jones Michael G. , Graham Lucas , Kelley-Derzon Jessica , Halstead Evan 
Published: August 2022

Abstract
We present theoretical expectations for infall toward supercluster-scale cosmological filaments, motivated by the Arecibo Pisces–Perseus Supercluster Survey (APPSS) to map the velocity field around the Pisces–Perseus Supercluster (PPS) filament. We use a minimum spanning tree applied to dark matter halos the size of galaxy clusters to identify 236 large filaments within the Millennium simulation. Stacking the filaments along their principal axes, we determine a well-defined, sharp-peaked velocity profile function that can be expressed in terms of the maximum infall rate V
max and the distance ρ
max between the location of maximum infall and the principal axis of the filament. This simple, two-parameter functional form is surprisingly universal across a wide range of linear mass densities. V
max is positively correlated with the halo mass per length along the filament, and ρ
max is negatively correlated with the degree to which the halos are concentrated along the principal axis. We also assess an alternative, single-parameter method using V
25, the infall rate at a distance of 25 Mpc from the axis of the filament. Filaments similar to the PPS have

V

max

=
612

±

116 km s−1,

ρ

max

=
8.9
±
2.1

Mpc, and V
25 = 329 ± 68 km s−1. We create mock observations to model uncertainties associated with viewing angle, lack of three-dimensional velocity information, limited sample size, and distance uncertainties. Our results suggest that it would be especially useful to measure infall for a larger sample of filaments to test our predictions for the shape of the infall profile and the relationships among infall rates and filament properties.
CARAMEL-gas: A Step toward Fast Empirical Models of the Broad-line-emitting Gas
Authors: Williams Peter R. , Treu Tommaso 
Published: August 2022

Abstract
Fast empirical models of the broad emission line region (BLR) are a powerful tool to interpret velocity-resolved reverberation mapping (RM) data, estimate the mass of the supermassive black holes, and gain insight into its geometry and kinematics. Much of the effort so far has been devoted to describing the emissivity of one emission line at a time. We present here an alternative approach aimed at describing the underlying BLR gas distribution, by exploiting simple numerical recipes to connect it with emissivity. This approach is a step toward describing multiple emission lines originating from the same gas and allows us to clarify some issues related to the interpretation of RM data. We illustrate this approach—implemented in the code CARAMEL-gas—using three data sets covering the Hβ emission line (Mrk 50, Mrk 1511, Arp 151) that have been modeled using the emissivity-based version of the code. As expected, we find differences in the parameters describing the BLR gas and emissivity distribution, but the emissivity-weighted lag measurements and all other model parameters including black hole mass and overall BLR morphology and kinematics are consistent with the previous measurements. We also model the Hα emission line for Arp 151 using both the gas- and emissivity-based BLR models. We find ionization stratification in the BLR with Hα arising at larger radii than Hβ, while all other model parameters are consistent within the uncertainties.
Infrared Excess of a Large OB Star Sample
Authors: Deng 邓 Dingshan 丁山 , Sun 孙 Yang 漾 , Wang 王 Tianding 天丁 , Wang 王 Yuxi 钰溪 , Jiang 姜 Biwei 碧沩 
Published: August 2022

Abstract
The infrared (IR) excess from OB stars is commonly considered to be a contribution from ionized stellar wind or circumstellar dust. With the newly published Large Sky Area Multi-Object Fiber Spectroscopy Telescope (LAMOST)-OB catalog and Galactic O-Star Spectroscopic Survey data, this work steps further on understanding the IR excess of OB stars. Based on a forward-modeling approach comparing the spectral slope of observational spectral energy distributions and photospheric models, 1147 stars are found to have IR excess out of 7818 stars with good-quality photometric data. After removing the objects in the sightline of dark clouds, 532 (∼7%) B-type stars and 118 (∼23%) O-type stars are identified to be true OB stars with circumstellar IR excess emission. The ionized stellar wind model and the circumstellar dust model are adopted to explain the IR excess, and Bayes factors are computed to quantitatively compare the two. It is shown that the IR excess can be accounted for by the stellar wind for about 65% cases, of which 33% by free–free emission and 32% by synchrotron radiation. Other 30% sources could have and 4% should have a dust component or other mechanisms to explain the sharp increase in flux at λ > 10 μm. The parameters of the dust model indicate a large-scale circumstellar halo structure, which implies the origin of the dust from the birthplace of the OB stars. A statistical study suggests that the proportion with IR excess in OB stars increases with the stellar effective temperature and luminosity, and that there is no systematic change in the mechanism for IR emission with stellar parameters.
The ALPINE–ALMA [C ii] Survey: The Infrared–Radio Correlation and Active Galactic Nucleus Fraction of Star-forming Galaxies at z ∼ 4.4–5.9
Authors: Shen Lu , Lemaux Brian C. , Lubin Lori M. , Liu Guilin , Béthermin Matthieu , Boquien Médéric , Cucciati Olga , Le Fèvre Olivier , Talia Margherita , Vergani Daniela , Zamorani Gianni , Faisst Andreas L. , Ginolfi Michele , Gruppioni Carlotta , Jones Gareth C. , Bardelli Sandro , Hathi Nimish , Koekemoer Anton M. , Romano Michael , Schaerer Daniel , Zucca Elena , Fang Wenjuan , Forrest Ben , Gal Roy , Hung Denise , Shah Ekta A. , Staab Priti , Vanderhoof Brittany , Ibar Eduardo 
Published: August 2022

Abstract
We present the radio properties of 66 spectroscopically confirmed normal star-forming galaxies (SFGs) at 4.4 < z < 5.9 in the COSMOS field that were [C ii]-detected in the Atacama Large Millimeter/submillimeter Array Large Program to INvestigate [C ii] at Early times (ALPINE). We separate these galaxies (“C ii-detected-all”) into lower-redshift (“C ii-detected-lz”; 〈z〉 = 4.5) and higher-redshift (“C ii-detected-hz”; 〈z〉 = 5.6) subsamples, and stack multiwavelength imaging for each subsample from X-ray to radio bands. A radio signal is detected in the stacked 3 GHz images of the C ii-detected-all and lz samples at ≳3σ. We find that the infrared–radio correlation of our sample, quantified by q
TIR, is lower than the local relation for normal SFGs at a ∼3σ significance level, and is instead broadly consistent with that of bright submillimeter galaxies at 2 < z < 5. Neither of these samples show evidence of dominant active galactic nucleus activity in their stacked spectral energy distributions (SEDs), UV spectra, or stacked X-ray images. Although we cannot rule out the possible effects of the assumed spectral index and applied infrared SED templates in causing these differences, at least partially, the lower obscured fraction of star formation than at lower redshift can alleviate the tension between our stacked q
TIRs and those of local normal SFGs. It is possible that the dust buildup, which primarily governs the infrared emission, in addition to older stellar populations, has not had enough time to occur fully in these galaxies, whereas the radio emission can respond on a more rapid timescale. Therefore, we might expect a lower q
TIR to be a general property of high-redshift SFGs.
Resolving the Core of R136 in the Optical
Authors: Kalari Venu M. , Horch Elliott P. , Salinas Ricardo , Vink Jorick S. , Andersen Morten , Bestenlehner Joachim M. , Rubio Monica 
Published: August 2022

Abstract
The sharpest optical images of the R136 cluster in the Large Magellanic Cloud are presented, allowing us for the first time to resolve members of the central core, including R136a1, the most-massive star known. These data were taken using the Gemini speckle imager Zorro in medium-band filters with effective wavelengths similar to BVRI achieving angular resolutions between 30–40 mas. All stars previously known in the literature, having V < 16 mag within the central 2″ × 2″, were recovered. Visual companions (≥40 mas; 2000 au) were detected for the WN5h stars R136 a1 and a3. Photometry of the visual companion of a1 suggests it is of mid-O spectral type. Based on new photometric luminosities using the resolved Zorro imaging, the masses of the individual WN5h stars are estimated to be between 150 and 200 M
⊙, lowering significantly the present-day masses of some of the most-massive stars known. These mass estimates are critical anchor points for establishing the stellar upper-mass function.
Les nouveaux dispositifs d’apprentissage accru en milieu de travail : apports et défis de l’usage du numérique
Authors: Chochard Yves , Dubeau Annie , Ryabets Tetyana , Jutras-Dupont Camille , Wirth Christian 
Published: August 2022

Afin de pallier les pénuries de main-d'œuvre, les pouvoirs publics développent des dispositifs de formation innovants basés sur une alternance travail-études accrue qui intègrent des outils numériques (en particulier, pour de l’enseignement à distance). Cet article analyse l’impact du numérique sur les pratiques des entreprises, des travailleurs étudiants et des enseignants qui utilisent ces dispositifs. Le cadre conceptuel de la « situation d’enseignement-apprentissage » (Hérold, 2019) a permis d’analyser de manière dynamique et systémique trois différents dispositifs d’apprentissage accru en milieu de travail. Les résultats démontrent que les transformations que connaissent ces dispositifs sont liées aux caractéristiques des travailleurs, aux dimensions techniques des dispositifs et, surtout, à la dynamique qui se crée entre les différents acteurs dans et en dehors de l’entreprise. Dans la discussion de cet article, des préconisations managériales explicites sont formulées pour enrichir le fonctionnement de ces dispositifs et favoriser la persévérance et la réussite des travailleurs formés.
Mélancolies françaises. Mémoire, oubli et réparation dans Supplément à la vie de Barbara Loden et La Robe blanche de Nathalie Léger
Authors: Dion Robert 
Published: August 2022

Dans ces deux récits, publiés respectivement en 2012 et en 2018, Nathalie Léger évoque les trajectoires fuyantes de deux artistes ayant réellement vécu, l’actrice-cinéaste américaine Barbara Loden et l’artiste-performeuse italienne Pippa Bacca, toutes deux trop tôt disparues dans des circonstances tragiques (un cancer foudroyant pour l’une, un assassinat pour l’autre). À travers l’analyse de ces ouvrages consacrés à des figures « secondaires » du cinéma et de l’art contemporain, il s’agira de voir comment se fait jour une écriture mélancolique qui est une façon de réhabiliter mais aussi de prendre la mesure de l'oubli, de la disparition de ces figures dans l’indifférence générale de la grande marche du monde.
Le ciel, une célébration de l’homme et de la femme. Le parachute d’André Jacques Garnerin (1797)
Authors: Millet Céline 
Published: August 2022

L’objectif de notre article est de nous pencher sur le retentissement social et sur l’impact dans l’imaginaire collectif de l’usage du parachute, en centrant notre étude sur la descente réalisée le 22 octobre 1797 par André Jacques Garnerin depuis un ballon à air inflammable, à Paris, au parc des Mousseaux, ainsi que sur celle de Jeanne Geneviève Labrosse effectuée le 12 octobre 1799 à Tivoli. Parce qu’au mouvement ascendant des ballons s’ajoute désormais une « maîtrise de la descente », le parachute contribue au développement du ciel comme lieu de célébration des pouvoirs de l’être humain et espace de liberté d’expression pour le sexe féminin. Nous nous appuierons, pour aborder cette question, sur plusieurs articles de presse tels ceux du Journal de Paris , ainsi que sur Le Parachute (1797) et La Femme au parachute ou le soupçon (1799), deux vaudevilles se faisant l’écho de l’actualité.
Une joyeuse dérive : passages de ballons dans le ciel du théâtre
Authors: Causse Pierre 
Published: August 2022

L’article s’intéresse à la présence scénique des ballons aérostatiques au cours du long xix e siècle, dans ses dimensions spectaculaires, dramaturgiques et culturelles. Dès l’invention des frères Montgolfier en 1783, le ballon entre en scène et traverse tous les genres, du vaudeville à la féerie, en passant par la revue et le mélodrame. Grâce au ballon, le théâtre divertit en mettant à distance les prétentions à la maîtrise humaine des éléments, en multipliant les jeux avec l’espace scénique et ses limites, en déployant des décors fascinants et en les mettant en mouvement grâce aux innovations techniques, offrant au public un voyage dans un fauteuil. Cette étude d’une vingtaine de pièces contribue à l’histoire culturelle de la conquête de l’air et montre comment dramaturges et metteurs en scène font du ciel un espace de jeu.
« Ce gentlemen [ sic ] rider du turf atmosphérique » : l’aérostation, la masculinité aristocratique et l’imaginaire colonial au tournant du XX e siècle
Authors: De Oliveira Patrick Luiz Sullivan 
Published: August 2022

Vers la fin du xix e siècle, le ballon réapparaît dans l'espace public comme un symbole de la modernité fin-de-siècle. Cet article explique comment l'aristocratie française a participé à ce processus en aidant à créer une culture spectaculaire de l’aérostation. Les aéronautes aristocrates s’emparent du ballon pour cultiver une masculinité nationaliste qui les distingue des classes populaires tout en les présentant comme des ralliés au service de la nation dans le domaine de l'expansion impériale. En devenant les aéronautes les plus actifs du pays, des aristocrates comme Henry de La Vaulx ont signalé la pertinence de leur classe dans une période généralement conçue comme le début de son déclin. Bien que leurs efforts pour utiliser le ballon pour la gestion coloniale aient échoué, ils ont réussi à introduire l'aéronautique comme élément essentiel de la mission civilisatrice, semant les graines d'entreprises futures comme l'Aéropostale.
Topographie mystique et expériences chronotopiques dans La Peau de chagrin de Balzac
Authors: Lahmedi Moez 
Published: August 2022

Certains espaces romanesques de La Peau de chagrin – la mansarde et le magasin d’antiquités – comportent un potentiel mystique que l’article s’attache à éclairer à la lumière de Swedenborg. Tremplins vers le « Monde Spirituel », ces deux locus constituent les cadres d’expériences chronotopiques qui réveillent le « Spécialiste » endormi en Raphaël et emportent son Être intérieur vers de nouvelles dimensions extra-temporelles. C’est donc en tant qu’éléments structurants, à la fois de la dispositio diégétique et de l’imaginaire mystique balzacien, que ces deux espaces sont ici étudiés.
Orbital and conjunctival nontuberculous mycobacteria infection
Authors: Kuo Chin-Tzu , Chen Yen-Ta , Tsai I-Lun , Tsai Ching-Yao , Chen Zoe Tzu-Yi 
Published: August 2022

Abstract
A 64-year-old female developed refractory red-eye with itching and watery discharge 2 weeks after being injured by a comb in the left eye. It presented as diffuse pinkish thickening of the bulbar conjunctiva. Biopsy and histological examinations revealed granulomatous inflammation with microgranuloma. Acid-fast-positive bacilli were found within the tissue, which was identified by culture 5 weeks later as Mycobacterium
Abscessus. The orbital computed tomography with contrast medium showed irregular enhancement with an ill-defined margin along the inferior sclera. Due to symptomatic and recurrent bulbar conjunctival thickening and abscess-like lesion formations, wide excision of the conjunctival and orbital granuloma with amniotic membrane transplantation was performed twice. Conjunctiva inflammation subsided after the surgical treatment was combined with 4 months of topical and parenteral antimycobacterial treatment. The presentation, diagnosis, and treatment of ocular nontuberculous mycobacterial (NTM) infection will be discussed in this article. NTM can cause infections of all adnexal and ocular tissues in patients with ocular trauma or surgical history. The pathological findings were granulomatous inflammation without true caseating. Periocular cutaneous, adnexal, and orbital NTM infections remain rare and require surgical debridement and long-term parenteral antibiotic therapy.
Metastatic esophageal carcinoma to the eye masquerading as inflammatory vitreo-retinitis: A case report and literature review
Authors: Shehada Reham , Turfa Rim , Ibrahimi Ahmad K. H. , Khzouz Jakub , Gharaibeh Azza , Yousef Yacoub A. , Mohammad Mona 
Published: August 2022

Abstract
We report an unusual case of metastatic esophageal carcinoma to the vitreous associated with focal retinitis in a 44-year-old male. A 44-year-old male patient, known case of locally advanced esophageal carcinoma, presented with a 3-day history of left eye floaters. The initial diagnosis was inflammatory vitreo-retinitis that responded to systemic steroids. Four months later, the patient presented with relapsed intraocular inflammation, vitreous biopsy using a 25G needle was performed, and cytology confirmed the presence of metastatic carcinoma consistent with his primary esophageal cancer. The patient received external beam radiotherapy to his ocular and brain metastasis, and his eye examination was stable. Five months later, the patient passed away due to progressive brain metastasis.
Pattern of Failure Among HNSCC
Authors: Shah Afsana , Kumar Dinesh , Preet Singh Govind , Shukla Pragya 
Published: August 2022

Aim:
This retrospective study was conducted to evaluate the pattern of recurrence in head and neck squamous cell carcinoma (HNSCC) patients who received a definitive chemo-radiotherapy.

Materials and Methods:
In this retrospective study, the data of 308 head and neck patients from January 2015 to March 2015 were analyzed. Only patients who received definitive chemo-radiotherapy were included in the study. The pattern of recurrence was stratified based on age, gender, site involved, histopathological differentiation, stage, habitual risk factors, and treatments received.

Results:
The mean age of the patients was 51.6 years. No association in the pattern of recurrence based on age, gender, or histopathologic differentiation was found. Patients with habitual risk factors (smoking, tobacco chewing, and alcohol) showed the poorest response to chemo-radiotherapy and unresolved residual disease. Among the primary sites involved, oral cavity patients showed the poorest response with maximum cases of residual disease. In addition, patients with advanced stage remained with residual disease and have a maximum recurrence, and the difference was statistically significant. All the patients who received neoadjuvant chemo-radiation (NACT-RT) as compared to chemo-radiation (CT-RT) had residual disease. According to the pattern of recurrence, the local recurrence was the most common followed by regional and then local and regional, but the distance recurrence was the lowest.

Conclusion:
Of the patients who have received definitive chemo-radiotherapy, more than half of HNSCC had residual disease. Of the patients with no residual disease, about half of them had recurrence at follow-up. However, no association in the pattern of recurrence was found based on gender or histopathologic differentiation. Patients who have multiple habitual risk factors showed the worst outcome as compared to the patients who have a single habitual risk factor. Patients with multiple habitual risk factors have maximum cases of residual disease and maximum cases of recurrence. Among the habitual risk factors, tobacco chewing was the worst habitual risk factor for refractory residual disease and recurrence. Based on the sites, the patients with carcinoma of the oral cavity showed the worst outcome in terms of residual disease, which is followed by hypopharynx, oropharynx, and then larynx carcinoma, but the rate of recurrence does not depend on the site involved. Advanced-stage patients had a poor response and with maximum cases of recurrence. A combination of chemotherapy with radiation showed better results as compared to the radiation alone in terms of response and recurrence. As to the site of recurrence, the local recurrence was the most common, followed by regional and then distance recurrence. This study indicated that HNSCC is locally aggressive, and local failures are the most common.
Evaluation of displacements and stress changes in the maxillo-mandibular complex with fixed functional appliance skeletally anchored on mandible using miniplates
Authors: Kumar Davender , Sharma Rekha , Arora Vinni , Bhupali Nameksh Raj , Tuteja Neha 
Published: August 2022

OBJECTIVES:
Fixed functional appliances (FFA) have been used for correction class II malocclusion but cause proclination of teeth. Recently, few studies have advocated the use of skeletal anchorage along with FFAs to prevent this side effect. The purpose of the study was to evaluate the stress distribution and displacements produced by miniplate anchored Forsus-fatigue resistant device on the maxilla, mandible, and the dentition in a Class II malocclusion patient by finite element analysis.

MATERIALS AND METHODS:
Cone beam computed tomography of a class II division 1 patient indicated for FFA was used to construct a 3D finite element model using MIMICS 8.11 and Hypermesh 13.0 software. Various material properties, boundary, and loading conditions were then applied. The model was analyzed for principal stress and von Mises stress in maxilla, mandible, and their dentition using ANSYS 12.1 software.

RESULTS:
In the mandible, maximum principal and von Mises stresses were seen in the cortical bone area in the symphyseal region, whereas mandibular teeth showed comparatively lesser stresses. In the maxilla, higher principal and von Mises stresses were seen in the maxillary molar region compared to the maxillary cortical bone. The entire mandible was displaced antero-inferiorly, whereas the maxilla showed a postero-superior displacement.

CONCLUSION:
Using skeletally anchored FFA results in more stresses and displacements in the skeletal structures compared to the dentition.