bluuebunny/crossref_metadata_2025_split huggingface dataset:
A New Component from the Quiet Sun from Radio to Gamma Rays: Synchrotron Radiation by Galactic Cosmic-Ray Electrons
Authors: Orlando Elena , Petrosian Vahe’ , Strong Andrew 
Published: February 2023

Abstract
The quiet Sun, i.e., in its nonflaring state or nonflaring regions, emits thermal radiation from radio to ultraviolet. The quiet Sun also produces nonthermal radiation observed in gamma rays due to interactions of Galactic cosmic rays (GCRs) with the solar atmosphere and photons. We report on a new component: the synchrotron emission by GCR electrons in the solar magnetic field. To the best of our knowledge this is the first time this emission has been theoretically claimed and modeled. We find that the measured GCR electrons with energies from tens of GeV to a few TeV produce synchrotron emission in X-rays, which is a few orders of magnitude lower than current upper limits of the quiet Sun set by RHESSI and FOXSI, with no energy losses included. For a radially decreasing solar magnetic field we find the expected synchrotron intensity to be almost constant in the solar disk, to peak in the close proximity of the Sun, and to quickly drop away from the Sun. We also estimate the synchrotron emission from radio to gamma rays, and we compare it with current observations, especially with LOFAR. While it is negligible from radio to UV compared to the solar thermal radiation, this emission can potentially be observed at high energies with NuSTAR and more promising future FOXSI observations. This could potentially allow for constraining GCR densities and magnetic-field intensities at the Sun. This study provides a more complete description and a possible new way for understanding the quiet Sun and its environment.
Molecular Hydrogen and its Proxies HCO+ and CO in the Diffuse Interstellar Medium
Authors: Liszt Harvey , Gerin Maryvonne 
Published: February 2023

Abstract
There is a robust polyatomic chemistry in diffuse, partially molecular interstellar gas that is readily accessible in absorption at radio/millimeter/submillimeter wavelengths. Accurate column densities are derived owing to the weak internal excitation, so relative molecular abundances are well known with respect to each other but not with respect to H2. Here we consider the use of proxies for hydrogen column densities N(H2) and N(H) = N(H i)+2N(H2) based on measurements of HCO+ absorption and CO emission and absorption, and we compare these with results obtained by others when observing H i, H2 and CO toward stars and active galactic nuclei. We consider the use of HCO+ as a proxy for H2 and show that the assumption of a relative abundance N(H2) = N(HCO+)/3 × 10−9 gives the same view of the atomic–molecular hydrogen transition that is seen in UV absorption toward stars. CO on the other hand shows differences between the radio and optical regimes because emission is always detected when N(HCO+) ≳ 6 × 1011 cm−2 or N(H2) ≳ 2 × 1020 cm−2. Wide variations in the integrated CO J = 1 − 0 brightness WCO and N(CO)/N(H2) imply equivalent variations in the CO-H2 conversion factor even while the ensemble mean is near the usual Galactic values. Gas/reddening ratios found in absorption toward stars, N(H)/E(B − V) = 6.2 × 1021 H cm−2 (mag)−1 overall or 6.8 × 1021 H cm−2 (mag)−1 for sightlines at E(B − V) ≤ 0.08 mag lacking H2 are well below the Galactic mean measured at low reddening and high Galactic latitude, 8.3 × 1021 H cm−2 (mag)−1.
Possible Gravitational Microlensing Events in the Optical Lightcurve of Active Galaxy S5 0716+714
Authors: Król D. Ł. , Stawarz Ł. , Krzesinski J. , Cheung C. C. 
Published: February 2023

Abstract
A well-known active galaxy of the blazar type, S5 0716+714, is characterized by a particularly high-variability duty cycle on short timescales at optical frequencies. As such, the source was subjected to numerous monitoring programs, including both ground-based as well as spaceborne telescopes. On closer inspection of the most recent accumulation of the data provided by the Transiting Exoplanet Survey Satellite, we have noticed several conspicuous events with “volcano-like” symmetric shape, all lasting for several hours, which closely resemble the achromatic events detected with the previous Whole Earth Blazar Telescope campaigns targeting the source. We propose that those peculiar features could be due to the gravitational microlensing of the innermost segments of the precessing jet in the system by a binary lens. We study the magnification pattern of the lens with the inverse-ray shooting method and the source trajectory parameters with the Python package MuLensModel. In this way, we were able to fit successfully all the selected events with a single lens, adjusting slightly only the source trajectory parameters for each lensing event. Based on the fit results, we postulate the presence of a massive binary lens containing an intermediate-mass black hole, possibly even a supermassive one, and a much less massive companion (by a factor of ≲0.01) located within the host galaxy of the blazar, most likely the central kiloparsec region. We discuss the major physical implications of the proposed scenario regarding the quest for the intermediate-mass and dual supermassive black holes in active galaxies.
Large-scale Spatial Cross-calibration of Hinode/SOT-SP and SDO/HMI
Authors: Fouhey David F. , Higgins Richard E. L. , Antiochos Spiro K. , Barnes Graham , DeRosa Marc L. , Hoeksema J. Todd , Leka K. D. , Liu Yang , Schuck Peter W. , Gombosi Tamas I. 
Published: February 2023

Abstract
We investigate the cross-calibration of the Hinode/Solar Optical Telescope-Spectro-Polarimeter (SOT-SP) and Solar Dynamics Observatory/Helioseismic and Magnetic Imager (SDO/HMI) instrument metadata, specifically the correspondence of the scaling and pointing information. Accurate calibration of these data sets gives the correspondence needed by interinstrument studies and learning-based magnetogram systems, and is required for physically meaningful photospheric magnetic field vectors. We approach the problem by robustly fitting geometric models on correspondences between images from each instrument’s pipeline. This technique is common in computer vision, but several critical details are required when using scanning-slit spectrograph data like Hinode/SOT-SP. We apply this technique to data spanning a decade of the Hinode mission. Our results suggest corrections to the published Level 2 Hinode/SOT-SP data. First, an analysis on approximately 2700 scans suggests that the reported pixel size in Hinode/SOT-SP Level 2 data is incorrect by around 1%. Second, analysis of over 12,000 scans shows that the pointing information is often incorrect by dozens of arcseconds with a strong bias. Regression of these corrections indicates that thermal effects have caused secular and cyclic drift in Hinode/SOT-SP pointing data over its mission. We offer two solutions. First, direct coalignment with SDO/HMI data via our procedure can improve alignments for many Hinode/SOT-SP scans. Second, since the pointing errors are predictable, simple post-hoc corrections can substantially improve the pointing. We conclude by illustrating the impact of this updated calibration on derived physical data products needed for research and interpretation. Among other things, our results suggest that the pointing errors induce a hemispheric bias in estimates of radial current density.
Agency beyond Action: Modernist Charactersas Interpreters and Readers
Authors: Hercend Olivier 
Published: February 2023

S’appuyant sur la distinction proposée par Bruno Latour, cet article s’intéresse à la façon dont les textes modernistes tendent à se détourner des moments d’action, pour focaliser l’attention sur les réseaux de « puissance d’agir » ( agency ) qui informent ces actions. Cette tendance, qui sous-tend de nombreux choix narratifs ou poétiques, décentre les personnages. Ceux-ci ne sont plus définis par leurs choix, mais constituent des points focaux sur lesquels s’exercent diverses influences antagoniques. Via les notions d’« interpellation » et de « contre-interpellation » développées par Jean-Jacques Lecercle, je défends l’idée que la force des personnages modernistes tient à ce statut décentré : ils sont contraints de construire leur identité dans un constant mouvement d’interprétation et de réappropriation de puissances d’agir externes. Ainsi, l’acte de lecture, en tant que confrontation au texte écrit mais aussi à d’autres agents et à des pressions sociales, constitue une scène paradigmatique : il représente la tension inhérente à la réception, mais aussi les potentialités créatives et expressives que celle-ci recèle, et que les personnages modernistes doivent intégrer pour s’affirmer dans leur propre histoire.
RiC-CM en construcción: del modelo descriptivo sintáctico (2016) al semántico armonizador (2021)
Authors: Llanes Padrón Dunia , Moro Cabero Manuela 
Published: February 2023

Este articulo analiza los dos borradores de Record in Context (RiC), un modelo conceptual (MC) para la descripción archivística elaborado por el Internacional Council of Archives (ICA). Se estudian diferentes elementos de las versiones del modelo para la comprensión de su estructura: principios teóricos, entidades, atributos y relaciones. RiC-CM se plantea como la alternativa para la representación, el acceso, el uso y la interoperabilidad de los recursos archivísticos en los tiempos posmodernos. El análisis permite comprender el papel de RiC en la integración y unificación de los esquemas descriptivos de archivos, bibliotecas, museos e instituciones culturales con la finalidad de lograr un acceso distribuido y entrelazado del patrimonio cultural mundial.
Coups de pieds en talons hauts : politiques du corps et performancescapes dans les scènes drag et ballroom grecques contemporaines
Authors: Koutsougera Natalia , Kontou Amalia Maria 
Published: February 2023

Ces dernières années, dans la Grèce post-crise économique, les violences homophobes, transphobes de même que la haine de l’efféminé et du féminin se sont intensifiées. En parallèle, de nouvelles esthétiques médiatiques, de nouveaux codes visuels et de nouveaux impératifs hyperpolitiques ont émergé, cherchant à redéfinir les pratiques artistiques drag et queer. Dans ce cadre, ces dernières se sont mises à se jouer tout à la fois de la culture populaire nationale, des standards de beauté et de la politique dans une perspective quasi postmoderne et postironique. S’appuyant sur des références locales et internationales, les scènes grecques du drag et du ballroom subvertissent artistiquement les horizons d’attente de leurs publics, à l’aide « d’imaginaires alternatifs et chaotiques du genre » (Davies, 2012) et d’autoréférences populaires et culturelles qui « soulignent la fausseté du naturel » (Van de Port, 2012). Bien souvent, ces appropriations sont perçues comme « en guerre avec la grécité » (Ieropoulos, 2018) et incarnent l’archétype moderne du « déviant » et du blasphème aux yeux d’une société grecque chrétienne orthodoxe. Dans une veine similaire, les vogueur·euses portent des costumes étranges, déformant les images d’une féminité pop et extravagante, et s’adonnent publiquement à des mouvements de danse en talons hauts, dans une logique combative et excessive. Dans ce contexte, nous proposons une analyse des performances espiègles et hasardeuses qui ponctuent les scènes drag et ballroom d’Athènes, afin d’en révéler les configurations politiques et les rhizomes performatifs, qui s’étalent bien au-delà des interprétations et imaginaires de résistance inter et extracommunautaires.
« Est-ce qu’il fait gay ? » : Analyse des questions soulevées lors du casting de comédiens pour des personnages gays dans une websérie
Authors: Gay Déborah 
Published: February 2023

À la fin des années 2010 est diffusée la saison 1 d’une websérie sur des militants LGBT. Lors des castings s’est posée la question du choix des comédiens, pour incarner des personnages gays. Ce choix dépend de plusieurs facteurs. D’une part, les responsables des castings ont chacun un regard propre sur ce qui fait un personnage LGBT fictionnel, en lien avec leur sexualité, leurs expériences, les normes de genre qu’ils adoptent et ce qu’ils attendent de la série. D’autre part, la question de la crédibilité et la volonté de portée universaliste de la websérie ont également des effets sur le choix des comédiens. Ces derniers peuvent aussi refuser de jouer le rôle d’un personnage gay, car le coût symbolique et économique à payer serait trop élevé, d’autant plus si le comédien est racisé. Dans cet article, nous nous intéressons au corps du comédien, tel qu’il a été discuté lors des réunions de préparation des castings et durant les castings eux-mêmes, auxquels j’ai pu assister dans le cadre d’une observation participante, ainsi que dans les discussions qui ont suivi.
Décrire, est-ce déjà juger ?
Authors: Jouanno Aubrie 
Published: February 2023

L’exercice de l’autorité parentale fait aujourd’hui l’objet d’une régulation par les pouvoirs publics chargés de protéger les enfants « en danger ou en risque de l’être ». Une fois confiés à l’aide sociale à l’enfance, la justice doit évaluer à intervalles réguliers si les enfants peuvent retourner chez leurs parents ou, au contraire, rester placés. Mais comment une juge peut-elle déterminer si l’enfant encourt toujours un (potentiel) danger dans sa famille alors même qu’il ne s’y trouve plus ? Cet article retrace le processus de construction collectif d’une décision de renouvellement d’une assistance éducative en prenant appui sur les deux dispositifs centraux du processus judiciaire : le rapport envoyé aux juges et les audiences. En s’attachant à reconstituer une ethnographie de l’action publique, l’exposé montre comment la décision de justice se forme à l’issue d’une construction collective du jugement sur les usagers dans laquelle leur parole n’a que peu de chance d’émerger autrement que médiée par les discours institutionnels.
L’œil à la page de Jean-Claude Passeron.
Authors: Vallet Pascal 
Published: February 2023

Cet article examine la formule de recherche de L’œil à la page, une enquête réalisée en 1979 par le Groupe Interuniversitaire de Documentation et d’Enquêtes Sociologiques (GIDES) qui avait pour objectif d’étudier l’implantation de matériel audiovisuel dans huit bibliothèques municipales et dont les comptes rendus prirent la forme d’un rapport et d’un livre. Tout à la fois enquête de commande et recherche à visée pédagogique, elle fut aussi pour Jean-Claude Passeron, son directeur scientifique, l’occasion de tester empiriquement Le Métier de sociologue et de préparer l’écriture de (Les) mots de la sociologie. À ce titre, elle peut être considérée comme l’une des bases empiriques du Raisonnement sociologique. Pour cette raison, cette enquête est prise entre deux bornes théoriques : d’une part, celle que constitue le Métier de sociologue qui en est la matrice conceptuelle et, d’autre part, Le raisonnement sociologique, considéré dès sa publication comme une contribution majeure à la réflexion sur l’épistémologie des sciences sociales. Grâce à cette description qui s’appuie sur le livre, le rapport et les archives de l’enquête, cet article met en évidence un style de pensée scientifique et saisit l’articulation du Métier de Sociologue au Raisonnement sociologique, pour mieux en comprendre et faire comprendre l’épistémologie.
Developing synbiotic bacterial therapeutics to treat food allergy
Authors: Hesser Lauren A. , Hubbell Jeffrey A , Nagler Cathryn 
Published: February 2023

Abstract
The recent generational rise in the incidence of food allergies has been correlated to adverse changes in the commensal microbiome, particularly depletion of potentially protective bacteria. By correlating the abundance of fecal bacteria with functional data sets between healthy and food allergic human cohorts, we have identified candidate bacteria for live biotherapeutics. Ruminococcus bromii is more abundant in healthy adult twins than their allergic counterparts and is a keystone species for the initial stages of resistant starch consumption. Anaerostipes caccae is comparatively abundant in healthy infants and uses the intermediate products of starch or fiber digestion to produce butyrate. We have observed cross-feeding between R. bromii and A. caccae in vitro and are now investigating their therapeutic potential. Monocolonization of germ free mice with A. caccae mimics the protective effects of the replete healthy microbiome in a model of food allergy. Our hypothesis is that A. caccae will not provide the same protection to a microbially replete host without the aid of additional factors (e.g. R. bromii). In mice colonized with the dysbiotic fecal bacteria of a cow’s milk allergic (CMA) infant, A. caccae colonizes but does not produce measurable butyrate, even when supplemented with potato starch. We predict that treating CMA-colonized mice with the combination therapy of potato starch, R. bromii, and A. caccae will increase luminal butyrate and influence the local gut immune environment. Our synbiotic strategy of combining protective bacteria with their preferred substrate(s) will address the current limitations of live biotherapeutics and provide insight into the microbiome/immune interactions relevant to food allergy.
Interleukin-1β secretion induced by mucosal-associated gut commensal bacteria promotes intestinal barrier repair
Authors: Wu Wan-Jung , Kim Myunghoo , Morales Fatima Beatriz Saldana , Ruiz Daniel Fernando Zegarra , Hill Andrea , Song Hyo Won , Norwood Kendra , Diehl Gretchen 
Published: February 2023

Abstract
It is known that the gut commensal bacteria support intestinal epithelial barrier integrity. However, how specific microbes regulate barrier integrity is not fully understood. We and others find that barrier repair in models of colitis requires the microbiota and asked whether individual microbes are sufficient to replace functions of the total microbiota. We identified a mouse commensal E. coli that protects mice from enhanced damage in the absence of the microbiota in a mouse model of infectious colitis. Surprisingly, the protective E. coli induced IL-1β production by intestinal macrophages in vivo. Such IL-1β secretion activated type 3 innate lymphoid cells (ILC3) and induced IL-22 production that triggered epithelial barrier repair. In addition to mouse commensal E. coli, we also identified a subset of human E. coli isolates that offered protection utilizing the same cellular and molecular pathways. Together, we reveal a novel mechanism that select intestinal commensal bacteria activate inflammatory pathways to support gut barrier repair and maintain barrier integrity.
A single cell sequencing approach to understand the nature of myeloid-derived suppressor cells in tumor-bearing mice
Authors: Abdulla Osama Azeldeen , Wilson Kiesha , Nagarkatti Prakash , Nagarkatti Mitzi 
Published: February 2023

Abstract
Peripheral T Cell Lymphoma (PTCL), a type of non-Hodgkin’s lymphoma, is a heterogeneous group of mature T cells that have undergone transformation into a malignant form. The tumor microenvironment (TME) is very heterogeneous and is comprised of different cell types. Myeloid-derived suppressor cells (MDSC) are one of the vital components of the TME. Further, MDSC are associated with tumor growth, angiogenesis and enhanced metastasis. The aim of this study was to compare MSDCs isolated from TME and splenic MDSCs from tumor-bearing hosts (TBHs) as well as splenic MDSCs from naïve mice by using single cell RNA sequencing (scRNASeq). For this reason, C57BL/6 mice were injected with 1×106 EL4 cancer cells subcutaneously to induce tumor growth and 14 days later, cells were isolated from these three tissues, and flow cytometry and scRNASeq were performed. The flow cytometry results showed an increase in MDSC recruitment in the spleens from TBHs in comparison with spleens from naïve mice. scRNASeq analysis showed most of the genes upregulated in MDSCs from TME and spleen of TBHs were responsible for generation, recruitment and proliferation of MDSCs (Lgals5, CXCL10, Alox5ap, CCL6, IL1b, S100A8/A9/A11, CCL4, CCL5). Furthermore, we found several genes overexpressed in MDSCs promoted the proliferation and migration of cancer cells as well as tumor formation (Lyz2, Plac8, Ifitm3, Vim, S100A6, Crip1). In addition, we found some genes have anti-tumor effects by suppressing T and B cells (Lgals5, Ly6c2). In summary, these studies demonstrated that MDSCs from TME and spleens of TBHs have unique features for inducing immunosuppression, as well as recruitment and expansion of MDSCs in TBHs, which make these cells critical for target for immunotherapy.
Cellular and humoral immune responses in adults receiving an inactivated mammalian cell-based influenza vaccine
Authors: Yu Esther Dawen , Grifoni Alba , Sutherland Aaron , Voic Hannah , Wang Eric , Frazier April , Jimenez-Truque Natalia , Yoder Sandra , Welsh Sabrina , Wooden Stacey , Koff Wayne , Creech Buddy , Sette Alessandro , Antunes Ricardo da Silva 
Published: February 2023

Abstract
Current evaluation of influenza vaccines focuses mainly on humoral response to surface hemagglutinin (HA), although both CD4 and CD8 T cell responses have been reported, to both HA and other viral proteins. We conducted a comprehensive functional analysis on the pre-existing and vaccine-induced immune responses to Flucelvax, a tetravalent mammalian cell-based influenza vaccine which in addition to HA contains additional viral proteins (NA, M1, M2, NP, NEP, NS1, PA, PB1, and PB2). Longitudinal samples of peripheral blood mononuclear cells from a cohort of 10 participants, were stimulated by pools of peptides overlapping individual influenza viral protein components. We examined both humoral and cellular responses, intra-vaccine interference, type-specific immunodominance patterns of responses and cytokine polarization. In addition to serological responses, our results demonstrated vaccine-induced CD4 and CD8 responses that were still present after 90 days post vaccination, a balanced immunogenicity across all 4 included viral strains, as well as unchanged type-specific immunodominance patterns and cytokine polarization post-vaccination. Our results demonstrated distinct CD4 reactivities mostly directed to HA/NA (neuraminidase) proteins in Influenza B strains, but similar CD8 responses to both influenza A and B viruses preferentially targeting the more conserved core viral proteins. The present study suggests that Flucelvax induces, both humoral, CD4 and CD8 cellular immunity, balanced across four different influenza strains and targeting HA and multiple additional viral antigens.