bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stellar X-Ray Variability and Planetary Evolution in the DS Tucanae System
Authors: King George W. , Corrales Lía R. , Bourrier Vincent , Dos Santos Leonardo A. , Doyle Lauren , Lavie Baptiste , Ramsay Gavin , Wheatley Peter J. 
Published: February 2025

Abstract
We present an analysis of four Chandra observations of the 45 Myr old DS Tuc binary system. We observed X-ray variability of both stars on timescales from hours to months, including two strong X-ray flares from star A. The implied flaring rates are in agreement with past observations made with XMM-Newton, though these rates remain imprecise due to the relatively short total observation time. We find a clear, monotonic decline in the quiescent level of the star by a factor of 1.8 across 8 months, suggesting stellar variability that might be due to an activity cycle. If proven through future observations, DS Tuc A would be the youngest star for which a coronal activity cycle has been confirmed. The variation in our flux measurements across the four visits is also consistent with the scatter in empirical stellar X-ray relationships with Rossby number. In simulations of the possible evolution of the currently super-Neptune-sized planet DS Tuc A b, we find a range of scenarios for the planet once it reaches a typical field age of 5 Gyr, from Neptune size down to a completely stripped super-Earth. Improved constraints on the planet's mass in the future would significantly narrow these possibilities. We advocate for further Chandra observations to better constrain the variability of this important system.
Granulation and Convectional Driving on Stellar Surfaces
Authors: Tschernitz Johannes , Bourdin Philippe-A. 
Published: February 2025

Abstract
Surface convection is important for the presence of magnetic activity at stars. So far, this convection is thought to be a result of heating from below, where convection cells rise and break up. New models reveal that surface convection is instead strongly driven by cooling from above. We compare two simulations of surface convection, one with a significant heating from below and one without. We obtain surface convection in both cases, and they show similar granulation patterns. The deep convection driven by heating from below is still evolving and asymptotically approaches a steady-state solution. We find that convection from below is not needed at all to form typical photospheric granulation. This indicates the possibility of a surface dynamo acting on stars without a convecting envelope. Even stars without a convecting envelope could therefore exhibit stronger magnetic and coronal activity than expected so far.
Filmer de ses propres ailes à Crespo, Entre Ríos
Authors: Allouche Claire 
Published: February 2025

Nous nous proposons d’étudier l’émergence d’un nouveau lieu de cinéma sur la carte de l’Argentine : Crespo, localité de l’Entre Ríos, capitale de l’aviculture et lieu de tournage privilégié d’un trio de cinéastes qui en sont originaires, Eduardo Crespo, Iván Fund et Maximiliano Schonfeld. Nous nous intéressons à la manière dont leur capital d’autochtonie, reposant sur leur condition de cinéastes-habitants, est favorable à des conditions de production légères et à l’origine d’une élaboration formelle singulière, dans la continuité de leur expérience de l’espace vécu et de la profonde compréhension des paysages filmés comme fruits matériels du travail de leur communauté.
Un dispositif collaboratif pour accompagner le développement professionnel d’une enseignante sur le plan didactique
Authors: Cross David , Munier Valérie 
Published: February 2025

Cet article présente les premières analyses d’un dispositif construit selon une approche collaborative associant des chercheurs en didactique et une enseignante de physique-chimie en France. Ce dispositif vise le développement professionnel sur le plan didactique de l’enseignante et la visée de formation étant envisagée comme un accompagnement, au sens de Paul (2009), par les chercheurs. Au cœur de ce dispositif, l’activité de co-construction d’une séquence sur la quantité de matière en classe de seconde est le support d’une activité réflexive. Ce dispositif collaboratif, de par sa dimension réflexive, permet de faire émerger une «  zone interprétative  » (Desgagné et al., 2001) et offre ainsi l’opportunité à l’enseignante de renouveler les savoirs pertinents pour sa pratique. Il s’agit dans cet article, d’une part, d’étudier la façon dont ces savoirs sont renouvelés au regard de la pragmatisation des concepts didactiques apportés par les didacticiens des sciences et, d’autre part, d’étudier le fonctionnement du dispositif en analysant la dynamique des postures des chercheurs et de l’enseignante. Les données sont constituées d’enregistrements vidéo de la première mise en œuvre de la séquence et de l’enregistrement audio d’une séance de travail entre les chercheurs et l’enseignante. Les résultats montrent qu’il existe des tensions entre des savoirs pour la pratique et les savoirs didactiques que les chercheurs tentent de gérer au mieux afin de maintenir la qualité de leur relation avec l’enseignante.
La fidélité des traductions arabes de « Les misérables » de Victor Hugo : étude comparative
Authors: Slimani Hafida 
Published: February 2025

Cet article se concentre sur l’analyse approfondie de la traduction arabe du célèbre roman français « Les Misérables » de Victor Hugo, en examinant non seulement sa compatibilité avec le texte original, mais aussi son impact culturel et sa réception auprès des lecteurs arabophones. L’étude met en lumière les défis linguistiques et culturels rencontrés par les traducteurs, les techniques déployées pour préserver l’authenticité, ainsi que les thèmes universels portés par l’œuvre originale. Elle explore également la manière dont cette traduction a influencé la perception de Victor Hugo et de la littérature française dans les sociétés arabes contemporaines. À travers une analyse détaillée, l’article souligne l’importance de la traduction littéraire comme vecteur de compréhension mutuelle et comme outil de création d’un sentiment d’appartenance culturelle universelle. En comparant l’œuvre originale avec sa traduction arabe, cette étude met en évidence les choix de traduction, leur impact sur le lectorat arabophone et la manière dont ils transforment l’œuvre pour contribuer au dialogue interculturel, tout en réaffirmant le rôle fondamental de la traduction dans l’évaluation de l’histoire littéraire à l’échelle mondiale.
Du bruit musical pour repenser l’esthétique hugolienne dans Les misérables de Tom Hooper
Authors: Zouagui Sabrina 
Published: February 2025

Adapté du roman de Victor Hugo, le film musical Les Misérables de Tom Hooper repose sur des effets esthétiques qui transmettent des émotions paroxystiques au spectateur. Ainsi, en plus de ce grand foisonnement de registres littéraires comme l’épique, le comique, le grotesque, le lyrique, le tragique, etc., ce film présente une hybridité générique singulière qui le place à mi-chemin entre le film d’adaptation, la comédie musicale et l’opéra. Dans cet article il s’agit pour nous de réfléchir à la façon dont l’adaptation hollywoodienne de ce film a privilégié le spectacle au détriment de la simple histoire racontée, et ce en transcendant la seule dimension narrative du roman vers un déploiement des réflexions hugoliennes d’ordre politique, historique, religieux, philosophique, sociologique, psychologique, etc. Ainsi, la grandeur démesurée qui imprègne ce film, ses personnages, ses musiques et ses chants, est accentuée par deux éléments principaux : d’abord l’enchevêtrement des registres littéraires qui a conféré au film une grande densité thématique et émotionnelle. Par besoin de concision nous nous sommes limitée à l’analyse poétique de trois registres : l’épique, le comique et le grotesque. Ensuite nous avons mis en lumière le travail d’amplification esthétique entrepris sur le plan formel : cela consiste en la mobilisation des ressources cinématographiques propres à la comédie musicale, à l’opéra et à des techniques musicales comme la polyphonie, la superposition des voix et l’imbrication des chants. Ainsi, contrairement aux autres adaptations des Misérables, centrées uniquement sur les événements de l’histoire, ce spectaculaire travail sur le fond et la forme a réussi à se réapproprier en la sublimant l’âme française de cette œuvre, et à offrir au spectateur une mise en scène frappante de la pensée hugolienne, une pensée d’ordre universel susceptible de toucher à toutes les sensibilités humaines, quelles que soient leurs appartenances géographiques ou culturelles.
Relative effects of black, purple, and green multiple-funnel traps on catches of arboreal and saproxylic beetles in forest understoreys
Authors: Miller Daniel R. 
Published: February 2025

Abstract
Trap colour can be an important consideration in detection programmes for arboreal and saproxylic beetles. Green and purple intercept traps are more attractive than black intercept traps to the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), an invasive species in North America. In four experiments, I tested three commercial multiple-funnel traps (green, purple, and black), baited with various lure blends, to determine the relative effects of trap colour on catches of other bark and woodboring beetles, and their associated predator species, in north–central Georgia, United States of America. I captured numerous species of Cerambycidae (Coleoptera) (n = 51), Curculionidae (Coleoptera) (n = 33), and associated predators (Coleoptera) (n = 22) across the four experiments. However, the majority of the species captured were either unaffected by trap colour or were caught in greater numbers in black and purple traps than in green traps. The two exceptions were the predators Enoclerus ichneumonus (Fabricius) (Coleoptera: Cleridae) and Pycnomerus sulcicollis LeConte (Coleoptera: Zopheridae), which were more abundant in green traps than in black traps. Purple traps performed better than black traps for the following species: Cnestus mutilatus (Blandford) (Coleoptera: Curculionidae), Cossonus corticola Say (Coleoptera: Curculionidae), Xylobiops basilaris (Say) (Coleoptera: Bostrichidae), Buprestis lineata Fabricius (Coleoptera: Buprestidae), and Namunaria guttulata (LeConte) (Coleoptera: Zopheridae).
Mental Health Status of Lactating Women Residing in Urban Slums and Rural Areas of South India: A Community-Based Cross-Sectional Study
Authors: Naveen Chimata , Darimisetty Srinivas Rao , Madhu T. , Sekhar Chittooru Chandra , Borugadda Niharika , Sreedevi A. , Harshita Mandava , Arif Shaik 
Published: February 2025

Abstract

Background:
The transition to motherhood is often characterized by physical recovery, hormonal fluctuations, sleep deprivation, and the challenges of infant care, all of which can contribute to the vulnerability of mothers to mental health issues. The present study was conducted to estimate the burden of poor mental health status of lactating women in urban slums and rural communities.

Materials and Methods:
A cross-sectional study was conducted on 220 lactating women residing in urban slums and rural areas of Ananthapuramu district. Data was collected by interview method using a pre-designed, semi-structured questionnaire that included Depression, Anxiety, and Stress Scale (DASS-21) for mental health assessment. Multivariate regression analysis was done to determine the predictors for poor mental health status of lactating women.

Results:
The overall prevalence of mental health issues in lactating women from rural and urban slums was 23.6% and 27.3%, respectively. Predictors for poor mental health of lactating women from rural backgrounds were primipara, lower segment cesarean section (LSCS) type of delivery, and class III socioeconomic status (SES) women, and for urban slums were nuclear family, breastfeeding for less than eight times per day, class III SES women, and intended pregnancy.

Conclusions:
Almost one in every fourth of lactating women residing in urban slums and rural areas will suffer from mental health issues. LSCS type of delivery and class IV and V SES have a negative impact on the mental health status of lactating women from rural areas. Nuclear family, breastfeeding less than eight times per day, class IV and V SES, and unintentional pregnancy have negative impacts in urban slums.
Correlation of Imaging Characteristics of Carotid Plaque with Clinical and Histopathological Features and Application of Artificial Intelligence Techniques in Identifying Carotid Disease
Authors: Ramnadh G. Satyendra , Sharma Pritee , Yerramsetty Vamsi Krishna , Kumar Y. V. Satish , Agarwal Rahul , Gupta Prem Chand 
Published: February 2025

Introduction:
Stroke is the third-leading cause of death. Carotid artery stenosis (CAS) accounts for 8%–37% of strokes. Landmark carotid trials have shown carotid endarterectomy (CEA) superior to best medical therapy (BMT) for symptomatic moderate stenosis and asymptomatic high-grade stenosis. This study aims to correlate imaging characteristics of vulnerable plaque (VP) with clinical and histopathological features and to assess the ability of artificial intelligence (AI) techniques to identify VP and disease burden using duplex ultrasound (DU) data.

Materials and Methods:
This prospective study from August 2022 to April 2024 used DU and computerized tomographic angiography (CTA) or magnetic resonance angiography (MRA) to assess carotid plaques in patients planned for CEA and subjected plaques to histology. We also imaged carotid plaques using DU in asymptomatic patients on BMT. YOLOv8 deep learning and U-Net AI models were used to analyze ultrasound (US) images.

Results:
One hundred and fiftyOne hundred and fifty patients were included in the study. Sixty (40%) were symptomatic. The age range was 33–84 years (mean 58.9). One hundred and fifteen (76.7%) were males. Hypertension, diabetes, dyslipidemia, and smoking were seen in 59%, 56%, 49%, and 40%, respectively and were more prevalent in patients with VP (90%, 60%, 70%, and 50%). Of the 70 patients who underwent CEA, 60 were symptomatic and 10 asymptomatic. 70% of symptomatic patients had a RANKIN (mRS) score of 2–3. All surgical patients underwent DU, 49 CTA, and 21 MRA. Based on the US, 53/60 (88%) symptomatic patients had VP. 56/60 (93%) were confirmed VP on histology. Positive predictive value (PPV) for VP was highest for DU (95%), followed by MRA (89%) and CTA (73%). PPV of DU screening in operated asymptomatic patients was 100%. AI showed 96% PPV for identifying >50% stenosis. Model training in identifying VP accuracy increased from 0.73 to 0.94 metrics.

Conclusion:
DU is an excellent modality to identify the nature of carotid plaque and can be a good tool to identify VP in asymptomatic CAS. More data will improve AI accuracy.
Evaluating the penetration efficacy of calcium silicate-based bioceramic sealers into dentinal tubules with cold lateral compaction technique using confocal laser scanning microscopy: An in vitro study
Authors: Mann Navjot Singh , Mann Navneet Kaur , Kapur Rajat 
Published: February 2025

Abstract

Background:
The micromechanical interlocking between dentinal walls and root canal sealer aids in achieving a three-dimensional impermeable hermetic seal. Calcium silicate-based bioceramic sealers are promising, but their comparative effectiveness in sealing dentinal tubules still needs further research.

Objective:
This study evaluated the penetration efficacy of four calcium silicate-based bioceramic sealers – CeraSeal (Meta BIOMED Co., Cheongju, Korea), BioRoot™ (Septodont, Saint-Maur-des-Fosses, France), Bio-C (Angelus, Londrina, Brazil), and SafeEndo BioActive RCS (SafeEndo, Vadodara, Gujarat) – into dentinal tubules using confocal laser scanning microscopy (CLSM).

Methodology:
Forty extracted single-rooted human mandibular premolars were decoronated, prepared with ProTaper rotary files, and randomly divided into four groups according to the type of sealer used. Canals were filled using a cold lateral condensation technique, and sealer penetration was assessed at the middle third of the root with CLSM. Statistical analysis was performed using one-way ANOVA and post hoc Bonferroni tests.

Results:
Significant differences in dentinal tubule penetration were found among the sealers. CeraSeal (Meta-BIOMED Co., Cheongju, Korea) achieved the highest mean penetration at 1511.8 µm, followed closely by BioRoot™ (Septodont, Saint-Maur-des-Fosses, France) at 1488.6 µm (P < 0.05), indicating superior performance.

Conclusion:
CeraSeal and BioRoot™ demonstrate superior tubular penetration, suggesting their advantages for effective sealing in root canal therapy. Future studies should investigate their long-term clinical efficacy in complex root canal systems.
Marketing flexibility of tourism human resources and its impact on enhancing tourist behaviour
Authors: Azeez Salam Jaaffar 
Published: February 2025

The research shows the impact of human resource marketing flexibility in enhancing workers' tourism behaviour in first-class hotels in the holy governorate of Karbala. The research began with a realistic problem, according to which several questions were identified, including clarifying the nature of the correlational and influential relationship between the research variables in the field. The research adopted the scale of (Camisom et al., 2010) (Beraha et al., 2018) in measuring marketing flexibility, which was measured in three dimensions: (flexibility of participation (part), flexibility of interaction (inte), flexibility of implementation (impl)), as for the tourist behaviour measure. The researcher adopted a scale of (Kotler et al., 2012) and (Durmaz et al., 2014), which was measured by four dimensions (Pirs, Lear, Perc, Moti). As for the central administration in collecting research data, the researcher relied on the questionnaire, and the sample was chosen from workers in first-class hotels in the Holy Governorate of Karbala, which numbered (141) workers and were distributed among (10) hotels registered in the Karbala Tourism Directorate, where (103) factors determined the sample size according to the Stephen Thompson equation. For processing and analysing the data statistically, structural equation modelling represented by (confirmatory factor analysis) was used, in addition to a set of descriptive statistical measures such as the Pearson correlation coefficient for ranks, and simple linear regression analysis using several statistical programs, including (Amos, V.24), (Spss, V.26). The results of the analysis proved the existence of a significant correlation and influence of the marketing flexibility of human resources in enhancing tourism behaviour among workers in hotel establishments, first-class hotels, the research sample, as the results indicated progress for the interaction flexibility dimension, which is dependent on the flexibility variable. Marketing, then the flexibility of the implementation dimension, and finally, the flexibility of the participation dimension have an impact in enhancing the tourist behaviour of hotel workers in the research sample. The order of the dimensions of the tourist behaviour variable came according to its importance (personality, perception, learning, and motivation).
Démence
Authors: Leibing Annette , Gagnon Eric 
Published: February 2025

La médecine regroupe sur le terme démence un ensemble de troubles qui affectent les facultés cognitives de la personnes. Il existe toutefois différents modèles d’explication et d’intervention sur ces mêmes troubles. L’anthropologie étudie ces modèles, et leur ancrage dans des contextes culturels, sociaux et économiques.
СТРАХОВАНИЕ: АБСОЛЮТНЫЕ ПОКАЗАТЕЛИ ФИНАНСОВОЙ УСТОЙЧИВОСТИ
Authors: Черняков М.К. , Черняков В.М. 
Published: February 2025

Статья посвящена анализу абсолютных показателей финансовой устойчивости организаций страхового сектора. Применены общие и специальные методы анализа финансовой устойчивости. Определены специфические риски страховых компаний. Приведена формула для расчета коэффициента финансовой устойчивости страхового фонда. Корреляционный анализ показал возможную прямую близкую к линейной связь периода времени с восьмью из восемнадцати параметрами рынка страхования: страховыми выплатами, доходом, коэффициентом выплат, уставным капиталом, кредиторской задолженностью, прочими доходами от страховой деятельности, расходами на ведение дела и коэффициентом финансовой устойчивости страхового фонда. Установлено, что наиболее тесная прямо пропорциональная взаимосвязь, близкая к функциональной, существует между коэффициентом финансовой устойчивости страхового фонда и суммой кредиторской задолженности. Разработана трехуровневая математическая модель страхового рынка. На основе математической модели предложены рекомендации, нацеленные на улучшение эффективности деятельности и стабилизации страхового рынка.
The article is devoted to the analysis of absolute indicators of financial stability of insurance sector organizations. General and special methods of financial stability analysis are applied. The authors identify the specific risks of insurance companies; provide the formula for calculating the financial stability coefficient of the insurance fund. The correlation analysis shows a possible direct, close to linear relationship of the time period with 8 out of 18 parameters of the insurance market: insurance payments, income, payout ratio, authorized capital, accounts payable, other income from insurance activities, business expenses and the coefficient of financial stability of the insurance fund. It is established that the closest directly proportional relationship, close to functional, exists between the coefficient of financial stability of the insurance fund and the amount of accounts payable. The authors develop a three-level mathematical model of the insurance market and provide recommendations aimed at improving the efficiency of activities and stabilizing the insurance market.