bluuebunny/crossref_metadata_2025_split huggingface dataset:
UVIT Study of the MAgellanic Clouds (U-SMAC). II. A Far-UV Catalog of the Small Magellanic Cloud: Morphology and Kinematics of Young Stellar Population
Authors: Hota Sipra , Subramaniam Annapurni , Nayak Prasanta K. , Subramanian Smitha 
Published: November 2024

Abstract
The Small Magellanic Cloud (SMC) is an irregular dwarf galaxy that has recently undergone an interaction with the Large Magellanic Cloud. The young massive stars in the SMC formed in the disturbed low-metallicity environment are important targets in astrophysics. We present a catalog of ∼76,800 far-ultraviolet (FUV) sources toward the SMC detected using the Ultra Violet Imaging Telescope onboard AstroSat. We created an FUV catalog with ∼62,900 probable SMC members which predominantly comprise main-sequence, giant, and subgiant stars. We selected four young populations (Young 1, Young 2, Young 3, and Blue Loop (BL) stars) identified from the Gaia optical color–magnitude diagram to study the morphology and kinematics of the young SMC using this catalog. We detect a clumpy morphology with a broken bar, a shell-like structure, and the inner SMC Wing for the four stellar populations. The eastern region and the northeastern regions are mainly populated by Young 1, 2, and 3 stars. The central region predominantly has the Young 2 and 3 populations, whereas the SW has BL stars, and Young 2 and 3 stars. The 2D kinematic study using proper motion (PM) reveals that Young 2 and 3 populations show two kinematically distinct subpopulations with low and high PM dispersion, whereas the Young 1 and BL stars show two kinematically distinct populations with low dispersion. Our analysis points to a kinematic disturbance along the R.A. direction for stars younger than ∼150 Myr located in the eastern region, with no significant disturbance along the decl.
Starspot Coverage on Two New K-type Low-mass Eclipsing Binaries with Radius Inflation
Authors: Pan Yang , Frasca Antonio , Wang Jia-Xin , Fu Jian-Ning , Zhang Xiao-Bin 
Published: November 2024

Abstract
Utilizing data from the Transiting Exoplanet Survey Satellite (TESS) and LAMOST, we present a photometric and spectroscopic investigation of two new K-type low-mass eclipsing binaries, TIC 56913729 and TIC 97729372. Our analysis yields masses and radii for TIC 56913729, M
1 = 0.7822 ± 0.0054M
⊙, R
1 = 0.7891 ± 0.0021R
⊙, and M
2 = 0.7532 ± 0.0052M
⊙, R
2 = 0.7648 ± 0.0021R
⊙. For TIC 97729372, the results are M
1 = 0.6410 ± 0.0058M
⊙, R
1 = 0.6537 ± 0.0069R
⊙ and M
2 = 0.6480 ± 0.0058M
⊙, R
2 = 0.6418 ± 0.0062R
⊙. In addition, by analyzing the out-of-eclipse starspot light variations, the lower limit of starspot coverage varies in different TESS sectors from 2% to 12%. We observed a clear radius inflation in the mass–radius diagram for both stars, when plotted against PARSEC and SPOT isochrones with 1 Gyr. Yet, this apparent discrepancy disappears when the comparison is made with either an older PARSEC isochrone (12 Gyr) or a SPOT isochrone (250 Myr) with high starspot coverage (F
spot ∼ 85%), which is significantly higher than the typical starspot coverage deduced from light curves. Due to the lack of strong age constraints, we cannot firmly exclude that the observed radius inflation may be the result of a post-main-sequence evolutionary effect, although the spectral and kinematic properties of these stars are hardly compatible with 10–12 Myr old (Pop II) stars. It is more likely that the radius inflation is produced by the strong magnetic activity in these rapidly rotating stars, even if it is impossible to infer the actual total spot coverage, due to the age uncertainties.
Multiwavelength Study of Extreme High-energy Peaked BL Lac Source 1ES 0229+200 Using Ultraviolet, X-Ray, and γ-Ray Observations
Authors: Hota Jyotishree , Khatoon Rukaiya , Misra Ranjeev , Pradhan Ananta C. 
Published: November 2024

Abstract
We present a comprehensive analysis of the broadband spectral energy distribution (SED) of the extreme high-energy peaked BL Lac source, 1ES 0229+200. Our study utilizes near-simultaneous data collected at various epochs between 2017 September and 2021 August (MJD 58119−59365) from different instruments, including AstroSat−UVIT, Soft X-ray focusing Telescope, LAXPC, Swift−UVOT, Fermi-LAT, and MAGIC. We investigate the one-zone synchrotron and synchrotron self-Compton (SSC) model, employing diverse particle distributions such as the log parabola, broken power law, power law with a maximum electron energy γ, energy-dependent diffusion (EDD), and energy-dependent acceleration (EDA) models to fit the broadband SED of the source. Our findings indicate that both peaks in the SED are well described by the one-zone SSC model across all particle distribution models. We estimate the jet power for different particle distributions. The estimated jet power for broken power law particle distributions is found to be on the order of 1047 (1044) erg s−1 for a minimum electron energy

γ

min

∼10 (104). However, for intrinsically curved particle energy distributions (e.g., log parabola, EDD, and EDA models), the estimated jet power is ∼1044 erg s−1. The SED fitting at five epochs enables us to explore the correlation between the derived spectral parameters of various particle distribution models. Notably, the observed correlations are inconsistent with the predictions in the power-law with a maximum γ model, although the EDD and EDA models yield the correlations as expected. Moreover, the estimated physical parameter values are consistent with the model assumptions.
A Modified Initial Mass Function of the First Stars with Explodability Theory under Different Enrichment Scenarios
Authors: Jiang Ruizheng , Zhao Gang , Li Haining , Xing Qianfan 
Published: November 2024

Abstract
The most metal-poor stars record the earliest metal enrichment triggered by Population III stars. By comparing observed abundance patterns with theoretical yields of metal-free stars, physical properties of their first star progenitors can be inferred, including zero-age main-sequence mass and explosion energy. In this work, the initial mass distribution of the first stars is obtained from the largest analysis to date of 406 very metal-poor stars with the newest LAMOST/Subaru high-resolution spectroscopic observations. However, the mass distribution fails to be consistent with the Salpeter initial mass function, which is also reported by previous studies. Here, we modify the standard power-law function with explodability theory. The mass distribution of Population III stars could be well explained by ensuring that the initial metal enrichment originates from successful supernova explosions. Based on the modified power-law function, we suggest an extremely top-heavy or nearly flat initial mass function with a large exponent for the explosion energy. This indicates that supernova explodability should be considered in the earliest metal enrichment process in the Universe.
Estimating the Spin of MAXI J1348–630 from Intermediate and Soft States Using Insight-HXMT Data
Authors: Guan J. , Ma R. C. , Tao L. , Fabian A. C. , Tomsick J. A. , Zhang S. N. , Zhang L. , Qu J. L. , Zhang S. 
Published: November 2024

Abstract
We present a broadband spectral analysis of the soft-intermediate and soft states using Insight-HXMT observations of the black hole binary MAXI J1348–630 during its outburst in 2019. We employ a combination of reflection and continuum fitting methods to measure the spin of the black hole and determine a spin of a = 0.79 ± 0.13, which is consistent with most of the previous results. Additionally, we investigate some sources of systematic uncertainty that could bias the measurement. The valid spectral hardening factor can partially account for the spin evolution observed during the outburst. Other potential factors, such as assumptions about the corona’s structure and their interaction with reflected photons, can also affect the accuracy of spin measurements. Furthermore, our analysis reveals that MAXI J1348–630 exhibits a significantly high disk density (∼1022 cm−3), with a moderate iron abundance of approximately 2.5 times solar.
The Calibrations of the DAMPE γ-Ray Effective Area
Authors: Shen Zhao-Qiang , Li Wen-Hao , Duan Kai-Kai , Jiang Wei , Xu Zun-Lei , Yue Chuan , Li Xiang 
Published: November 2024

Abstract
The Dark Matter Particle Explorer (DAMPE) is a cosmic-ray detector as well as a pair-converting γ-ray telescope. The effective area, reflecting the geometrical cross-section area, the γ-ray conversion probability, and the photon selection efficiency, is important in γ-ray analyses. In this work, we find a significant time variation in the effective area, as large as ∼−4% yr−1 at 2 GeV for the high-energy trigger. We derive the data-based correction factors to the effective areas and apply corrections to both the effective areas and the exposure maps. The calibrated exposure can be ∼12% smaller than the Monte Carlo one on average at 2 GeV. The calibration is further verified using the observation of the Vela pulsar, showing the spectral parameters with the correction are more consistent with those in the Fermi-LAT catalog than the ones without correction. All the corrections are now implemented in the latest version of the DAMPE γ-ray analysis toolkit DmpST.
A Survey of Sulfur-bearing Molecular Lines toward the Dense Cores in 11 Massive Protoclusters
Authors: Tang Mengyao , Qin Sheng-Li , Liu Tie , Zapata Luis A. , Liu Xunchuan , Peng Yaping , Xu Fengwei , Zhang Chao , Tatematsu Ken’ichi 
Published: November 2024

Abstract
Sulfur-bearing molecules are commonly detected in dense cores within star-forming regions, but the total sulfur budget is significantly lower when compared to the interstellar medium value. The properties of sulfur-bearing molecules are not well understood due to the absence of large sample studies with uniform observational configurations. To deepen our understanding of this subject, we conducted a study using Atacama Large Millimeter/submillimeter Array 870 μm observations of 11 massive protoclusters. By checking the spectra of 248 dense cores in 11 massive protoclusters, a total of 10 sulfur-bearing species (CS, SO, H2CS, NS, SO2, 33SO, 34SO2, 33SO2, SO18O, and OC34S) were identified. The parameters including systemic velocities, line widths, gas temperatures, column densities, and abundances were derived. Our results indicate that SO appears to be more easily detected in a wider range of physical environments than H2CS, despite these two species showing similarities in gas distributions and abundances. Molecules 34SO2 and H2CS are good tracers of the temperature of sulfur-bearing species, in which H2CS traces the outer warm envelope and 34SO2 is associated with high-temperature central regions. High-mass star-forming feedback (outflow and other nonthermal motions) significantly elevates the sulfur-bearing molecular abundances and detection rates specifically for SO2 and SO. A positive correlation between the SO2 abundance increasing factor (F) and temperatures suggests that SO2 could serve as a sulfur reservoir on the grain mantles of dense cores and then can be desorbed from dust to gas phase as the temperature rises. This work shows the importance of a large and unbiased survey to understand the sulfur depletion in dense cores.
Enseigner les langues à l'école publique au Maroc
Authors: Pellegrini Chloé 
Published: November 2024

Au Maroc, les débats autour des politiques linguistiques et des langues nationales et étrangères – arabe, amazigh, français, anglais et espagnol – mobilisent des débats identitaires passionnés au nom de valeurs sociétales et civilisationnelles antagonistes, dans un contexte de tensions entre savoirs locaux et savoirs mondialisés. Cet ouvrage s’appuie sur une recherche inédite d’immersion ethnographique de longue durée à l’intérieur d’établissements scolaires publics, du primaire au lycée, en milieux urbain, rural et montagnard au Maroc. Après un état des lieux des politiques linguistiques éducatives et des débats sociétaux sur les langues, il invite le lecteur à suivre les parcours personnels et professionnels d’enseignants de langues, à observer leurs pratiques d’enseignement dans les classes et les modalités de construction des savoirs selon la langue enseignée. Dans une approche socio-anthropologique, il montre comment les idéologies linguistiques véhiculées par les programmes et les manuels y sont interprétées, et quelles formes de savoirs, d’identités et de citoyenneté sont valorisées auprès des élèves. Des pistes de réflexion sont enfin proposées pour tenter de « désidéologiser » l’enseignement des langues et d’atténuer les souffrances liées à leur apprentissage.
Monde canonial, monde monastique
Authors: Deflou-Leca Noëlle , Massoni Anne 
Published: November 2024

Dans l’organisation de l’Église, séculiers et réguliers sont réputés avoir chacun leur spécificité et tenir de manière parallèle et bien distincte leur place au sein de l’Ecclesia, clercs et chanoines d’un côté, moines et moniales de l’autre. Or, dès les temps carolingiens mais plus encore aux xie-xiie siècles, poussées par leurs protecteurs, évêques ou grands laïcs, ces communautés ont parfois été amenées à changer de propositum vitae, pour passer du siècle à la règle ou, plus rarement, abandonner celle-ci pour vivre en clercs. Ces processus de régularisation ou de sécularisation entrent dans le champ des phénomènes historiques de réforme qui entraînent réticences et résistances et conditionnent la mise en œuvre de ces mutations, leur réussite ou leur échec. En abordant un champ quasiment inexploré de l’histoire religieuse médiévale, il s’agit ici de décloisonner les catégories séculiers/réguliers pour aborder autrement les pratiques de la vie communautaire médiévale et analyser les contacts entre ces deux mondes, canoniaux et monastiques.
La Mission d’exploration commerciale lyonnaise en Chine (1895-1897)
Authors: Adrover Florence 
Published: November 2024

La Mission lyonnaise d’exploration commerciale en Chine constitue une initiative privée, qui contraste avec les explorations précédentes, ordonnées par l’État. Avec les promesses attendues du Traité de Shimonoseki, Lyon espère établir une « soudure commerciale » entre l’Indochine et la Chine, suivant le chef de mission Henri Brenier. Si l’enquête sur la sériciculture demeure la priorité, les objectifs englobent l’étude des différents débouchés commerciaux au Yunnan et au Sichuan. Le champ thématique et géographique de la mission est d’ampleur. Il en résulte un rapport général abondamment illustré, assez rare pour être souligné. La photographie joue en effet un rôle important dans le cadre de la mission, qui participe en cela d’un renouvellement visuel de la Chine. Cet article se propose d’étudier les apports photographiques à l’enquête économique et la manière dont elle fabrique un territoire convoité par les Occidentaux, au demeurant extérieur au joug colonial.
Temps court et temps long en histoire des mobilités
Authors: Passalacqua Arnaud 
Published: November 2024

Le monde des transports et mobilité fourmille de références au temps, par les objets, par les projets et par l’expérience sensible de qui voyage. Cet article propose une réflexion sur les formes du temps à l’œuvre dans ce domaine, en identifiant les différents rythmes qui l’animent. Il étudie l’hypothèse opposant un temps court du déplacement à un temps long des projets et infrastructures. Contrairement à l’idée selon laquelle ce temps court serait répétitif et le temps long orienté vers le progrès, il propose, par le regard historique, d’inverser les points de vue : le temps cyclique serait bien celui du temps long de la répétition des projets selon un cercle du réenchantement, tandis que le temps court ferait l’objet de tentatives constantes de réduction, selon une logique orientée vers l’accélération. L’article discute de l’adéquation entre ces rythmes et ceux de la société, en débouchant sur l’idée que la patrimonialisation puisse être une voie de mise en résonance.
Determinants of persistent malaria transmission in the Arjo-Didessa farm area in Ethiopia
Authors: Taffese Hiwot S. , Zuma Sibusiso M. 
Published: November 2024

Background: In tropical and subtropical areas of the world, malaria is still a serious public health concern. Activities related to agricultural development that involve irrigation schemes likely increase the risk of malaria in tropical and sub-Saharan African regions. Ethiopia is a sub-Saharan country where malaria is endemic.Objectives: The aim of the study was to investigate the determinants related to the persistence of malaria transmission in the Arjo-Didessa sugarcane farm area in southwest Ethiopia.Method: The study employed a quantitative survey design. Quantitative data were collected from 397 households using structured questionnaires. SPSS Statistics version 26 was used to analyse the data. Z- and Chi-square tests were applied, and the data were analysed using logistic regression.Results: The determinants that were identified included variation in land use, water management practices, socioeconomic status and knowledge about the use of anti-malaria treatment. These were shown to contribute to increased malaria transmission and the rise in malaria cases in agricultural areas.Conclusion: The effectiveness of malaria control in agricultural settings can be improved through free access to malaria testing and treatment as well as knowledge about anti-malaria treatment among the residents in agricultural areas.Contribution: The study revealed key determinants, including the promotion of free access to anti-malaria treatment, which should be considered for the effective management of malaria in agricultural areas.
The radiological features of HPV-positive vs HPV-negative OPSCC at a South African hospital
Authors: Naranbhai Anand , Afrogheh Amir , O’Hagan Suzanne , Grobbelaar Johan , Janse van Rensburg Leon 
Published: November 2024

Background: Studies have found that, at presentation, human papillomavirus (HPV)-positive oropharyngeal squamous cell carcinoma (OPSCC) has a less advanced primary tumour, more advanced lymph node spread and commonly has cystic metastatic lymph nodes in comparison to HPV-negative OPSCC.Objectives: To compare the radiological features of HPV-positive and HPV-negative OPSCC in South African patients.Method: A retrospective cross-sectional study was conducted at a large South African hospital. Eligibility required a histologically proven OPSCC between 2007 and 2023; a p16 antigen test and, if positive, a confirmatory HPV DNA PCR test and a baseline pre-treatment contrast enhanced neck CT scan. All eligible HPV-positive OPSCC patients and a random sample of eligible HPV-negative OPSCC patients were enrolled.Results: Twenty-one HPV-positive and 55 HPV-negative OPSCC patients were recruited. There was no statistically significant difference in the tumour epicentre location, local advancement (≥ T3 in 67% and 71%, respectively, p = 0.54), mean primary tumour size (41 mm vs. 39 mm, p = 0.73), lymph node spread (bilateral or more in 67% vs. 82%, p = 0.22) or morphologically cystic lymph nodes (10% and 4%, p = 0.61).Conclusion: There was no statistically significant difference in the CT imaging appearances of HPV-positive and HPV-negative OPSCC in the studied sample of South African patients.Contribution: This study documents the radiological features of OPSCC in a small South African sample population, where HPV-positive and HPV-negative OPSCC could not be distinguished on CT criteria and did not display the classic features described in the literature.
Közép-európai gyógyszergyártó vállalatok forgótőke helyzetének elemzése
Authors: Tömöri Gergő , Horváth Rihárd 
Published: November 2024

The pharmaceutical industry has huge market potential and investment opportunities, while pharmaceutical players also face a number of challenges, such as regulating the production and pricing of active pharmaceutical ingredients, protecting intellectual property and competing with other players. As a key sector of the Hungarian economy, the industry generates a significant share of GDP and has grown dynamically in recent years, the aim of our study is to compare the activities of Hungarian industry players with sectoral companies in other Visegrad countries, and thus to examine the similarities and differences in the liquidity management of the pharmaceutical industries in these countries. The analysis was based on the annual accounts of regional pharmaceutical companies for the period 2018-2022, extracted from the EMIS database. The period covered included several globally significant events, and therefore our research also examined the impact of the coronavirus epidemic and the war in Ukraine on pharmaceutical companies and whether there were differences between the Central European countries. Overall, sectoral players in each of the region's countries were able to keep their indebtedness under control and, although Hungarian companies were able to manage the largest assets, by the end of the period the working capital efficiency of Polish companies was better than their regional competitors overall.
O‘ZBEKISTON–TURKIYA HAMKORLIGI VA UNING NATIJASI (TO‘QIMACHILIK SANOATI MISOLIDA)
Authors: Esanova Nilufar 
Published: November 2024

O‘zbekiston jahonda paxta yetishtirish bo‘yicha 6-o‘rinni, paxta eksporti bo‘yicha 3-o‘rinni egallaydi. Shu bois, O‘zbekiston to‘qimachilik sanoati iqtisodiyotning yetakchi yo‘nalishlaridan biri hisoblanib, jadal rivojlanib borayotgan sohalardan biriga aylandi.
Vision-Based Fall Detector for Elderly Based on Sliding Window Approach and Feature Engineering
Authors: Assanovich Boris , Kosarava Katsiaryna 
Published: November 2024

A new vision-based fall detector is proposed that uses the tsfresh tool to generate features from the bounding box motion parameters of an object and performs classification in a sliding window mode. The efficiency of the generated features is demonstrated compared to the primary ones. Using the auto-sklearn library and a generalized dataset compiled from the UR Fall Detection and CAUCAFall datasets, the best human fall detection model is found. This model based on a gradient boosting classifier achieved 96% accuracy, which is not inferior to well-known detection algorithms, but uses only two primary motion parameters to generate secondary features. A principal component analysis-based class separability study showed that for secondary features 99% of the variance is captured by the first 4 principal components, while for primary features, the first 10 principal components contain only 80% of the data variance. Furthermore, the processing time for generating secondary features and making predictions was found to be relatively short, taking only a few seconds per sequence, highlighting the practical applicability of the proposed approach in real-time fall monitoring systems.

Received: 15 August 2024 | Revised: 12 October 2024 | Accepted: 7 November 2024

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
Data available on request from the corresponding author upon reasonable request.

Author Contribution Statement
Boris Assanovich: Conceptualization, Methodology, Validation, Investigation, Resources, Writing - original draft, Writing - review & editing, Visualization, Project administration. Katsiaryna Kosarava: Methodology, Software, Validation, Formal analysis, Investigation, Data curation, Writing - review & editing, Visualization.