bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Search for X-Ray/UV Correlation in the Reflection-dominated Seyfert 1 Galaxy Markarian 1044
Authors: Barua Samuzal , Adegoke Oluwashina K. , Misra Ranjeev , Pawar Pramod , Jithesh V. , Medhi Biman J. 
Published: November 2023

Abstract
Correlated variability between coronal X-rays and disk optical/UV photons provides a very useful diagnostic of the interplay between the different regions around an active galactic nucleus (AGN) and how they interact. AGNs that reveal strong X-ray reflection in their spectra should normally exhibit optical/UV to X-ray correlation consistent with reprocessing—whereas the optical/UV emission lags behind the X-rays. While such correlated delay has been seen in some sources, it has been absent in others. Mrk 1044 is one such source that has been known to reveal strong X-ray reflection in its spectra. In our analysis of three long XMM-Newton and several Swift observations of the source, we found no strong evidence for correlation between its UV and X-ray lightcurves both on short and long timescales. Among other plausible causes for the nondetection, we posit that higher X-ray variability rather than UV and strong general relativistic effects close to the black hole may also be responsible. We also present results from the spectral analysis based on XMM-Newton and NuSTAR observations, which show the strong soft X-ray excess and iron Kα line in the 0.3–50 keV spectrum that can be described by relativistic reflection.
Latitudinal Propagation of Thermal Rossby Waves in Stellar Convection Zones
Authors: Jain Rekha , Hindman Bradley W. 
Published: November 2023

Abstract
Using an analytic model, we derive the eigenfrequencies for thermal Rossby waves that are trapped radially and latitudinally in an isentropically stratified atmosphere. We ignore the star’s curvature and work in an equatorial f-plane geometry. The propagation of inertial waves is found to be sensitive to the relative direction of the wavevector to the zonal direction. Prograde propagating thermal Rossby waves are naturally trapped in the radial direction for frequencies above a critical threshold, which depends on the angle of propagation. Below the threshold frequency, there exists a continuous spectrum of prograde and retrograde inertial waves that are untrapped in an isentropic atmosphere but can be trapped by gradients in the specific entropy density. Finally, we discuss the implications of these waves on recent observations of inertial oscillations in the Sun, as well as in numerical simulations.
Jupiter’s Equatorial Quasi-quadrennial Oscillation Forced by Internal Thermal Forcing
Authors: Lian Yuchen , Tan Xianyu , Hu Yongyun 
Published: November 2023

Abstract
Observations have shown that there exists downward propagation of alternating westward/eastward jets in Jupiter’s equatorial stratosphere, with a quasi-period between 4 and 6 yr. This phenomenon is generally called the quasi-quadrennial oscillation (QQO). Here, we simulate the QQO by injecting isotropic small-scale thermal disturbances into a 3D general circulation model of Jupiter. It is found that the internal thermal disturbance is able to excite a wealth of waves that generate the equatorial QQO and multiple jet streams at the middle and high latitudes of both hemispheres. The dominant wave mode in generating the QQO-like oscillation is that with a zonal wavenumber of 10. The inhomogeneous evolution of potential vorticity favors the emergence of off-equatorial zonal jets. The off-equatorial jets migrate to the equator, strengthen the deep equatorial jets, and result in the prolonging of the QQO-like oscillations.
Solar Atmospheric Heating Due to Small-scale Events in an Emerging Flux Region
Authors: Yadav Rahul , Kazachenko Maria D. , Afanasyev Andrey N. , de la Cruz Rodríguez Jaime , Leenaarts Jorrit 
Published: November 2023

Abstract
We investigate the thermal, kinematic, and magnetic structure of small-scale heating events in an emerging flux region (EFR). We use high-resolution multiline observations (including Ca ii 8542 Å, Ca ii K, and the Fe i 6301 Å line pair) of an EFR located close to the disk center from the CRISP and CHROMIS instruments at the Swedish 1 m Solar Telescope. We perform non-LTE inversions of multiple spectral lines to infer the temperature, velocity, and magnetic field structure of the heating events. Additionally, we use the data-driven Coronal Global Evolutionary Model to simulate the evolution of the 3D magnetic field configuration above the events and understand their dynamics. Furthermore, we analyze the differential emission measure to gain insights into the heating of the coronal plasma in the EFR. Our analysis reveals the presence of numerous small-scale heating events in the EFR, primarily located at polarity inversion lines of bipolar structures. These events not only heat the lower atmosphere but also significantly heat the corona. The data-driven simulations, along with the observed enhancement of currents and Poynting flux, suggest that magnetic reconnection in the lower atmosphere is likely responsible for the observed heating at these sites.
Local Star-forming Galaxies Build Up Central Mass Concentration Most Actively near M
∗ = 1010
M
⊙
Authors: Pan Zhizheng , Zheng Xianzhong , Kong Xu 
Published: November 2023

Abstract
To understand in what mass regime star-forming galaxies (SFGs) build up central mass concentration most actively, we present a study on the luminosity-weighted stellar age radial gradient (∇age) distribution of ∼3600 low-redshift SFGs using the MaNGA Pipe3D data available in Data Release 17 from the Sloan Digital Sky Survey. The mean age gradient is negative, with ∇age = −0.14 log Gyr/R
e, consistent with the inside-out disk formation scenario. Specifically, SFGs with positive ∇age consist of ∼28% at log (M
*/M
⊙) < 9.5, while this fraction rises up to its peak (∼40%) near log (M
*/M
⊙) = 10 and then decreases to ∼15% at log (M
*/M
⊙) = 11. At fixed M
*, SFGs with positive ∇age typically have more compact sizes and more centrally concentrated star formation than their counterparts, indicative of recent central mass buildup events. These results suggest that the buildup of central stellar mass concentration in local SFGs is mostly active near M
* = 1010
M
⊙. Our findings provide new insights into the origin of morphological differences between low-mass and high-mass SFGs.
On the Contribution of Coronal Mass Ejections to the Heliospheric Magnetic Flux Budget on Different Time Scales
Authors: Winslow Réka M. , Scolini Camilla , Lugaz Noé , Schwadron Nathan A. , Galvin Antoinette B. 
Published: November 2023

Abstract
Coronal mass ejections (CMEs) contribute closed magnetic flux to the heliosphere while they are connected at both ends to the Sun and play a key role in adding magnetic flux to the heliosphere. Here, we discuss how the type of magnetic reconnection that opens CME field lines in the inner heliosphere, i.e., interchange (IC) and/or interplanetary (IP) reconnection, determines the length of time CMEs contribute to the heliospheric flux budget. This distinction has not been taken into account in past studies that estimate the CME flux opening timescale. We outline key criteria to aid in distinguishing IC reconnection from IP reconnection based on in situ spacecraft data and highlight these through two example events. Studying the manner in which CMEs reconnect and open in the inner heliosphere yields important insights not only into CMEs’ role in the heliospheric flux budget but also the evolution of CME complexity, connectivity, and topology.
Cave-adapted millipedes from Portugal: species conservation profiles
Authors: Reboleira Ana Sofia P. S. , Eusébio Rita 
Published: November 2023

Amongst the cave-dwelling millipedes (Diplopoda), there are several endemic species in Portugal with a very small geographical distribution. These species play an important role in the decomposition of organic matter in subterranean ecosystems and are vulnerable to disturbance from human activities, such as habitat destruction, pollution infiltrating from the surface and cave tourism.
We present the IUCN Red List profiles for cave-adapted millipedes (Diplopoda) from Portugal and propose conservation measures to prevent extinction. Overall, cave-adapted millipedes from Portugal represent an endemic part of the country's biodiversity and conservation efforts will help maintain the delicate ecological balance of subterranean ecosystems.
L’Église catholique dans l’arène politique au Burkina Faso : l’enjeu politique de la pluralité religieuse
Authors: Kolesnoré Pascal 
Published: November 2023

Le rapport de l’Église à la politique au Burkina recèle le paradoxe d’une Église catholique numériquement minoritaire mais d’une grande influence politique. Ce rapport pluridimensionnel s’apprécie à plusieurs niveaux : les laïcs servent de fer de lance politique de la hiérarchie même si une sorte de cléricalisme politique reste dominante. Ce rapport se caractérise aussi par sa mouvance : connivences et désamours, proximités et ruptures. Il est loin d’être à sens unique : l’Église développe des stratégies d’influence et le pouvoir politique tente d’instrumentaliser cette force morale. Il s’ensuit entre ces deux forces un équilibre délicat qui a contribué à asseoir un type particulier de laïcité non exempt de tensions. L’engagement politique des autres confessions crée un nouvel enjeu politique de taille, celui de la gestion politique du pluralisme religieux. Celui-ci impose de repenser la laïcité étatique sous la forme d’une participation multiforme et encadrée des confessions religieuses à la construction de la nation et de la démocratie.
Le « patrimoine » foncier face à la vente : l’exemple d’un village wè-guéré (Département de Bangolo, Côte d’Ivoire)
Authors: Przybylowski Tangui 
Published: November 2023

Dans l’Ouest forestier ivoirien, la notion de « patrimoine » est aujourd’hui mobilisée en vue de dévaloriser les contrats fonciers d’achat-vente passés à l’insu de certains parents du vendeur. Cette conception trouve ses racines dans l’autochtonisme foncier, qui s’exprime par une opposition à la vente modulée par le rejet des allogènes « étrangers » (Ivoiriens et non-Ivoiriens) lié à l’équilibre des rapports d’autorité entre aînés et cadets sur la terre. Nous souhaitons donner un aperçu des modalités de son développement dans un village du Grand Ouest.
À propos des Peuls « qui ne sont pas nés » : escalvage, djihad et droits humains au centre du Mali
Authors: Holder Gilles 
Published: November 2023

Le texte confronte le paradigme des « droits humains pour la sécurité des populations » à une dimension peu invoquée du conflit hybride qui s’est développé au centre du Mali depuis 2015 : l’esclavage et plus largement les rapports de domination historiquement constitués. Les ressorts de ce conflit passent par un retour sur les djihads des XVIII e et XIX e siècles portés par des communautés peules marginalisées, à l’issue desquels une série d’États islamiques ont été mis en place, assortis d’une économie esclavagiste fondée sur une distinction interne entre maîtres et esclaves. Finalement, le conflit articule un continuum contemporain : démocratisation politique, décentralisation économique et « fonciarisation » des terres ; à un continuum historique : domination sociale, concussion économique et émancipation par le djihad.
Comment penser la sexualité biologique au xix e siècle ? Émile Maupas et les étapes de la conjugaison chez les infusoires ciliés
Authors: Loison Laurent 
Published: November 2023

Le sexe fut un problème biologique déroutant tout au long du xix e siècle, lorsqu’on commença à comprendre que reproduction et sexualité étaient à distinguer. Les travaux zoologiques d’Émile Maupas (1842-1916) constituent un jalon dans cette histoire, car ils sont venus éclaircir les étapes nucléaires du phénomène de conjugaison chez les ciliés, longtemps entaché de nombreuses zones d’ombre. Grâce à la mise au point de techniques manipulatoires nouvelles, ainsi qu’à des qualités d’observateur remarquables, Maupas parvint à en donner une description toujours considérée comme vraie actuellement. Ses réflexions sur la fonction de l’acte sexuel (la conjugaison étant totalement découplée de la reproduction chez les ciliés), en revanche, montrent les limites du projet d’une « biologie générale », auquel Maupas entendait participer. Dans une telle conception, qui visait à relier très étroitement biologie, chimie et physique, il était en fait impossible de penser le sexe comme une adaptation.
La beauté inquiète
Authors: Aboudrar Bruno Nassim 
Published: November 2023

Il est généralement admis que la peinture classique – la peinture française du Grand Siècle notamment – n’a pas remis en question sa recherche d’une beauté formelle, largement codifiée par un ensemble de règles académiques. En s’appuyant sur une de ces fameuses conférences à l’Académie de peinture, celle donnée en 1676 par René-Antoine Houasse sur le « Beau naturel », ainsi que sur plusieurs exemples artistiques, cet article tend à montrer que la théorie et la pratique picturales du xvii e siècle se sont, au contraire, confrontées à des antinomies touchant à l’idée même de beauté. Loin d’être simple ou tranquille, la beauté, pour ces artistes, est inquiète.
La beauté corporelle en question
Authors: Gherchanoc Florence 
Published: November 2023

La beauté corporelle est un motif esthétique et plastique loué et valorisé durant l’Antiquité. De l’apparence aux manières d’être, comment les anciens Grecs l’ont-ils pensée et représentée dans les pratiques et les discours, au regard des normes politiques, sociales et religieuses, autrement dit culturelles ? Cet article explore les marqueurs de la beauté d’un corps, ses manifestations et ses effets dans l’Athènes classique. Il montre également à quel point la beauté corporelle, si elle fait consensus dans son expression, reste un sujet de polémiques relatives aussi bien à sa définition qu’aux pratiques qui transforment les corps.
Les concours de beauté
Authors: Couvry Camille 
Published: November 2023

Utilisés comme un symbole national de modernité et de puissance, notamment sur la scène internationale, ou bien investis par des groupes particuliers et des sous-cultures à l’intérieur des pays, les concours de beauté promeuvent tous des identités collectives. Le regard porté à différents échelons des concours invite immanquablement à s’intéresser aux interactions qui mettent en tension les représentations, les valeurs et les pratiques à l’intérieur des sociétés, et entre le local, le national et le global, et au coeur desquelles se produisent des identités et se jouent des enjeux de reconnaissance. L’objectif dans cet article est donc d’explorer au travers de la littérature scientifique la question suivante : comment les enjeux culturels, identitaires, politiques se traduisent-ils, voire parfois sont-ils exacerbés, dans le contexte des concours de beauté ? Pour répondre à cette question, nous développons trois dimensions que les concours mettent particulièrement à l’épreuve et en tension et sur lesquelles des enjeux tendent à se cristalliser et se localiser : les critères esthétiques retenus et les modèles de beauté produits ; la place et le rôle des femmes en tant que représentantes privilégiées des identités produites dans les concours ; et enfin les dynamiques d’appropriations au-delà de la représentation des identités locales, nationales ou transnationales.
A new species and a new synonym in Peruvian Senecio (Compositae)
Authors: Calvo Joel , Granda Arturo 
Published: November 2023

The species Senecio contumazensis sp. nov. from the southern department of Cajamarca, in northwestern Peru, is described herein. It shows morphological affinities with species of the Senecio series Otopteri, especially with the Bolivian Senecio sepium. In addition, the putative endemic Senecio piurensis from northern Peru is synonymized with S. pericaulis, a species previously described from southern Ecuador. Discussions on the morphology of these species, illustrations, and a distribution map are provided.
Une pompe hydraulique romaine en bois en contexte d’incendie à Reims/Durocortorum
Authors: Driard Cyril 
Published: November 2023

Une pompe à eau aspirante refoulante en bois a été mise au jour lors d’une fouille archéologique préventive réalisée en 2016 au 45 rue de Thillois à Reims (Marne). Elle a été retrouvée dans un puits situé à un carrefour proche du decumanus maximus, dans l’ouest de la ville antique. Ce dispositif hydraulique, plutôt atypique par rapport aux autres modèles de pompes en bois connues dans l’Antiquité, a été installé sur place et utilisé lors d’un incendie. Cette catastrophe est à l’origine de l’abandon et de la conservation exceptionnelle de cet appareil hydraulique qui s’est alors rapidement retrouvé dans un milieu clos parfaitement étanche. Le corps de pompe, gorgé d’eau, a été enseveli dans une boue cendreuse qui l’a préservé de tout remaniement ultérieur. Seule la partie supérieure de l’appareil, carbonisée et détruite lors de l’installation d’une sépulture dans le puits, après l’incendie, n’a pas été retrouvée. L’étude de cette pompe est l’occasion de revenir sur une technique d’élévation de l’eau déjà documentée en Occident romain, mais à partir d’un corpus réduit, lacunaire et souvent dépourvu de contexte archéologique détaillé.
Antimicrobial Susceptibility Pattern of Extended-Spectrum Beta-Lactamase-Producing Uropathogens in Aminu Kano Teaching Hospital, Northwestern Nigeria
Authors: Umar Usman Yahya , Giwa Fatima Jummai , Ibrahim Abdulrasul , Gachi Farida Suleiman 
Published: November 2023

Background:
UTI is the most common nosocomial infection among hospitalized patients. Emerging increasing resistance has been observed among uropathogens of the family enterobacterales. Extended spectrum beta lactamase genes encode for multidrug resistance and unrestricted use of antibiotics in hospitals provides an environment for spread of infections with limited treatment options. This necessitates therapies based on culture and antimicrobial sensitivity to improve patients’ outcomes We aimed to determine susceptibility pattern of ESBL uropathogens among hospitalized patients in Aminu Kano Teaching Hospital, Kano.

Methodology:
Three hundred and eighty-nine urine samples were obtained from in-patients with UTI between April 2020 and April 2021. Five samples were rejected and remaining analyzed. Susceptibility testing was done by modified Kirby Bauer technique. Clinical Laboratory Standards Institute guidelines 2019 (CLSI 2019) and the European Committee on Antimicrobial Susceptibility testing guidelines version 2 (EUCAST version 2) were used for screening and confirmation of ESBL production respectively.

Results:
Of the 384-urine processed, 105 (27.3%) were gram negatives and 81 were Enterobacterales, Isolation rates were E. coli-55.6%, K. pneumoniae-29.6%, Citrobacter spp.-12.3%, P. mirabilis-1.2% and Morganella spp.-1.2%. Among Enterobacterales, 32 (39.5%) were ESBL producers. Prevalence of ESBL were 62.5% for Escherichia coli, 28.1% for Klebsiella pneumoniae and 9.4% for Citrobacter species. Susceptibility showed that ESBL-producing Isolates were highly susceptible to amikacin (96.9%). Resistance to other antibiotics varied from 3.1% to 100%.

Conclusion:
We recommend strengthening laboratory capacity, antibiotics stewardship and Infection control to prevent spread of resistant pathogens including ESBLs.
Preoperative STOP-BANG Questionnaire to Predict Difficult Airway in Undiagnosed Obstructive Sleep Apnea Patients Undergoing Elective Gynecological Surgeries under General Endotracheal Anesthesia: A Prospective Observational Study
Authors: Thammaiah Srinivas Hebbal , Sreenath Rashmi Hosahalli , Kumararadhya Girish Bandigowdanahalli , Babu Nivetha , Archana K.N. 
Published: November 2023

Background:
STOP-BANG questionnaire is an established tool for obstructive sleep apnea (OSA) screening. Its utility in predicting difficult airway has not been evaluated. We intend to assess difficulty in airway management and associated perioperative complications in patients with undiagnosed OSA using the STOP-BANG questionnaire.

Materials and Methods:
We performed a prospective observational study on 250 patients with the American Society of Anesthesiologists Physical Status Class I-II, aged 18–65 years STOP-BANG score were recorded. Occurrences of difficult mask ventilation (DMV), laryngoscopy, and intubation were assessed using mask ventilation grade, intubation difficulty score intubation difficult score (IDS), and modified Cormack–Lehane grading during induction of anesthesia. Hypoxic events, hemodynamic disturbances, laryngospasm, and bronchospasm were also recorded.

Results:
Overall, 250 patients completed the study (Group H: n = 102, with STOP-BANG questionnaire ≥3 and Group L: n = 148, with STOP-BANG criteria < 3). A total of 67 (26.8%) cases of DMV and 63 (25.2%) cases of difficult tracheal intubation (DIT) were encountered overall. The proportion of patients with DMV during induction was 59.8% in Group H versus 4.05% in Group L (P < 0.001). A higher incidence of difficult intubation was observed in Group H (56.9% vs. 11.5%, P < 0.001). More patients in Group H had airway complications such as bleeding and injury to the posterior pharyngeal wall or teeth (P < 0.001). Complications such as hypoxia, hypertension, and tachycardia were observed to be higher in Group H (P < 0.001).

Conclusion:
STOP-BANG questionnaire is an effective bedside preoperative tool that helps in identifying unanticipated difficult airway.
Arthroscopic-assisted stabilization of distal clavicle fractures with coracoclavicular ligament injury: does it restore anatomy and function?
Authors: Rakha Mohamed I , Toreih Ahmed 
Published: November 2023

Abstract

Background
Fractures of the lateral-third clavicle are less common than the mid-shaft. However, these lateral thirds are associated with disruption of coracoclavicular (CC) ligaments requiring surgical management for optimal fracture healing and functional outcome. Many surgical techniques have been developed to manage these fractures; however, high failure rates and implant-related complications were reported. This study aims to assess the radiological and functional outcomes of arthroscopic-assisted stabilization of the distal end clavicle in terms of union rate, complications, and shoulder function.

Patients and methods
A prospective study of 32 patients with distal displaced clavicle fracture combined with CC ligament injury (Neer type IIB, V) who underwent surgery within the first 2 weeks of injury between January 2017 and February 2020. Clinical evaluation was employed postoperatively using the Constant–Murley score. The stability of the acromioclavicular joint in the horizontal and vertical planes was evaluated by the cross-arm test and manual dislocation. Radiological assessment was reviewed by an independent observer who was not a surgical team member at 1 and 2 months postoperatively.

Results
A series of 32 patients (24 men and eight women) were included. Their mean age was 36 years. Based on the radiological imaging, 20 patients had Neer type-IIB fractures, while 12 showed type-V fractures. Their average union time was 6.12 ± 1.26 weeks (ranged 5–9 weeks), with a mean Constant–Murley score that was 96.1 ± 3.76 (range, 89–100). An average of 6.62 ± 1.82 weeks was needed before returning to prior activities. There were no complications reported.

Conclusions
Arthroscopic-assisted fixation of the distal end clavicle provides excellent fixation results and restores the native anatomy by reconstructing the torn CC ligament without complications or the need for removal of the implant.