bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mixing of Hot Shocked Plasma with Cold Gas in Nova YZ Ret 2020
Authors: Mitrani Sharon , Behar Ehud , Drake Jeremy J. , Orio Marina , Page Kim , Canton Valentina , Ness Jan-Uwe , Sokolovsky Kirill 
Published: July 2024

Abstract
The origin of bright X-ray emission lines that appear late in a nova eruption remains largely a puzzle. We present two high-resolution X-ray grating spectra of the classical nova YZ Ret, observed 77 and 115 days post-eruption, using XMM-Newton and Chandra, respectively. Both spectra feature resolved emission lines blueshifted by v = –1500 km s−1 and broadened by σ

v
= 500 km s−1. The two spectra are well described by a collisionally ionized plasma of kT ∼ 70 eV that dimmed by a factor of ∼40 between the two exposures. The spectra also show narrow radiative recombination continua (RRCs) of C+4, C+5, and N+5, indicating the interaction of the hot ionized plasma with cold electrons of kT ∼ 2 eV. The high-n Rydberg series of C+4 is anomalously bright, allowing us to measure the electron density through continuum lowering, which is in agreement with the He-like N+5 density diagnostic of n

e
= (1.7 ± 0.4) × 1011 cm−3. The high population of these high-n levels constitutes the best evidence to date of charge exchange (CX) with neutral H in an astrophysical ionized plasma. The remarkable fact that the velocity and plasma temperature are the same after 38 days, despite the high density and decreasing flux, is evidence for ongoing heating. We suggest the heating is due to a reverse shock in the nova ejecta, which forms a thin X-ray shell. The narrow RRCs and CX are attributed to direct mixing with cold gas, which overtakes the hot plasma either from the shock front or through the contact discontinuity.
Stellar Characterization and a Chromospheric Activity Analysis of a K2 Sample of Planet-hosting Stars
Authors: Loaiza-Tacuri V. , Cunha Katia , Smith Verne V. , Quispe-Huaynasi F. , Costa-Almeida Ellen , Ghezzi Luan , Melendez Jorge 
Published: July 2024

Abstract
Effective temperatures, surface gravities, and iron abundances were derived for 109 stars observed by the K2 mission using equivalent width measurements of Fe i and Fe ii lines. Calculations were carried out in local thermodynamic equilibrium using Kurucz model atmospheres. Stellar masses and radii were derived by combining the stellar parameters with Gaia Data Release 3 parallaxes, V magnitudes, and isochrones. The derived stellar and planetary radii have a median internal precision of 1.8% and 2.3%, respectively. The radius gap near R
planet ∼ 1.9 R
⊕ was detected in this K2 sample. Chromospheric activity was measured from the Ca ii H and K lines using the values of

log

R

HK

′

, which were investigated as a function of stellar rotational period (P
rot), and we found that chromospheric activity decreases with increasing P
rot, although there is a large scatter in

log

R

HK

′

(∼0.5) for a given P
rot. The activity levels in this sample reveal a paucity of F and G dwarfs with intermediate activity levels (the Vaughan–Preston gap). The effect that stellar activity might have on the derivation of stellar parameters was investigated by including magnetically sensitive Fe i lines in the analysis and we find no significant differences between parameters with and without magnetically sensitive lines, although the more active stars (

log

R

HK

′

>
−
5.0

) exhibit a larger scatter in the differences in T
eff and [Fe/H].
Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 Å Bump, q
PAH, Ultraviolet Extinction Shape, and N(H i)/A(V)
Authors: Gordon Karl D. , Fitzpatrick E. L. , Massa Derck , Bohlin Ralph , Chastenet Jérémy , Murray Claire E. , Clayton Geoffrey C. , Lennon Daniel J. , Misselt Karl A. , Sandstrom Karin 
Published: July 2024

Abstract
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way (MW) like to significantly steeper curves with no detectable 2175 Å bump. This result is based on a sample of only nine sight lines. From Hubble Space Telescope Space Telescope Imaging Spectrograph and IUE spectra of OB stars, we have measured UV extinction curves along 32 SMC sight lines where eight of these curves were published previously. We find 16 sight lines with steep extinction with no detectable 2175 Å bump, four sight lines with MW-like extinction with a detectable 2175 Å bump, two sight lines with fairly flat UV extinction and weak/absent 2175 Å bumps, and 10 sight lines with unreliable curves due to low SMC dust columns. Our expanded sample shows that the sight lines with and without the 2175 Å bump are located throughout the SMC and not limited to specific regions. The average extinction curve of the 16 bump-less sight lines is very similar to the previous average based on four sight lines. We find no correlation between dust column and the strength of the 2175 Å bump. We test the hypothesis that the 2175 Å bump is due to the same dust grains that are responsible for the mid-infrared carbonaceous (polycyclic aromatic hydrocarbon) emission features and find they are correlated, confirming recent work in the MW. Overall, the slope of the UV extinction increases as the amplitudes of the 2175 Å bump and far-ultraviolet curvature decrease. Finally, the UV slope is correlated with N(H i)/A(V) and the 2175 Å bump and nonlinear far-ultraviolet rise amplitudes are anticorrelated with N(H i)/A(V).
Forecast of Joint Analysis of Cosmic Shear and Supernovae Magnification from the CSST and LSST
Authors: Cao Ye , Hu Bin , Yao Ji , Zhan Hu 
Published: July 2024

Abstract
Cosmic shear and cosmic magnification reflect the same gravitational lensing field. Each of these two probes are affected by different systematics. We study the auto- and cross-correlations of cosmic shear from the China Space Survey Telescope and cosmic magnification of supernovae from the Large Synoptic Survey Telescope. We want to determine to what extent, by adding the magnification data, we can remove the systematic bias in cosmic shear measurements. We generate mock shear/magnification maps based on the correlation between different tomographic bins. After obtaining the corrected power spectra, we adopt the Markov Chain Monte Carlo technique to fit the theoretical models and investigate the constraints on the cosmological and nuisance parameters. We find that, with only the cosmic shear data, there are 1σ biases in the σ
8 and intrinsic alignment model parameters. By adding the magnification data, we are able to remove these biases perfectly.
Observational Evidence for Hot Wind Impact on Parsec Scales in Low-luminosity Active Galactic Nuclei
Authors: Shi Fangzheng , Yuan Feng , Li Zhiyuan , Su Zhao , Ji Suoqing 
Published: July 2024

Abstract
Supermassive black holes in galaxies spend the majority of their lifetime in the low-luminosity regime, powered by hot accretion flow. Strong winds launched from the hot accretion flow have the potential to play an important role in active galactic nuclei (AGN) feedback. Direct observational evidence for these hot winds with temperatures around 10 keV, has been obtained through the detection of highly ionized iron emission lines with Doppler shifts in two prototypical low-luminosity AGNs, namely M81* and NGC 7213. In this work, we further identify blueshifted H-like O/Ne emission lines in the soft X-ray spectra of these two sources. These lines are interpreted to be associated with additional outflowing components possessing velocity around several 103 km s−1 and lower temperature (∼0.2–0.4 keV). Blueshifted velocity and the X-ray intensity of these additional outflowing components are hard to explain by previously detected hot wind freely propagating to larger radii. Through detailed numerical simulations, we find the newly detected blueshifted emission lines would come from circumnuclear gas shock-heated by the hot wind instead. Hot wind can provide a larger ram pressure force on the clumpy circumnuclear gas than the gravitational force from the central black hole, effectively impeding the black hole accretion of gas. Our results provide strong evidence for the energy and momentum feedback by the hot AGN wind.
Technology Readiness Level of biodiversity monitoring with molecular methods – where are we on the road to routine implementation?
Authors: Laamanen Tiina , Norros Veera , Vihervaara Petteri , Jerney Jacqueline , Kortelainen Pirkko , Kujala Katharina , Lambert Stefan , Mäyrä Janne , Nikula Lilja , Palmroos Ida , Tolkkinen Mikko , Vuorio Kristiina , Meissner Kristian 
Published: July 2024

Human activities are causing rapid biodiversity loss across ecosystems, affecting human wellbeing and crucial ecosystem services. Traditional biodiversity monitoring tools cannot keep up with the increasing demands of monitoring due to their limited spatial or temporal coverage, high costs, and lack of taxonomic expertise. Thus, implementation of novel molecular monitoring methods (MoMs) such as environmental DNA (eDNA) and DNA metabarcoding, are necessary.
MoMs offer significant benefits for biodiversity monitoring and environmental assessment: high sensitivity and accuracy, non-invasive sampling, broad taxonomic range and cost and time efficiency. However, the diverse methodological approaches within MoMs lead to poor comparability between studies and surveys, highlighting the need for standardized assessments.
We used the Technology Readiness Level (TRL) framework to evaluate the maturity of MoMs, providing a structured assessment of their readiness for routine use. In a systematic literature review 420 articles fulfilling the study criteria were assessed and both individual studies and method categories ranked according to the TRL scale. The findings revealed a growing number of studies, particularly in aquatic environments, with most studies validating MoM technologies on a small scale but lacking large-scale system demonstrations. Aquatic eDNA-based methods targeting fish showed overall higher technology readiness compared to other sample types and taxa, and applications of MoMs ranked into the highest TRL were predominantly freshwater studies.
Key barriers to the broader implementation of MoMs to monitoring include the need for international standards, better quantitative estimates, and comprehensive reference libraries. National and international cooperation is crucial for establishing common standards, ensuring reliable and comparable results, and expediting the routine use of MoMs in biodiversity monitoring. Recent efforts towards international standardization are encouraging, but further coordinated actions are necessary for the global implementation and acceptance of these methods.
A new species of Pupinidius Möllendorff, 1901 (Gastropoda, Stylommatophora, Enidae) from Jiuzhaigou, Sichuan, China
Authors: Chen Zhong-Guang , Dai Yu-Ting , Wu Xiao-Ping , Jiang Jiao , Ouyang Shan 
Published: July 2024

The genus Pupinidius Möllendorff, 1901 is endemic in China and Nepal and consists of 15 species. China is the distribution centre of it with 12 species being recorded.
A new species, Pupinidius pulchellus Chen, Dai, Wu & Ouyang sp. nov. is described from Jiuzhaigou, Sichuan, China. It can be distinguished from congeneric species by the shell with wide and distinct radial stripes; the thin, slightly reflexed and reddish-brown peristome; the unpointed apex; the unfused A-1 and A-2; the sub-globular and well defined bursa copulatrix; the unexpanded diverticle and the presence of epiphallic caecum.
Quand les agences de l’État sensibilisent aux inégalités alimentaires
Authors: Le Roux Nicolas , Thoreau Julie-Jane 
Published: July 2024

Quel rôle jouent les opérateurs de l’État dans la transition alimentaire ? Comment insufflent-ils les coopérations et comment épaulent-ils les acteurs locaux dans le lancement d’initiatives ambitieuses pour améliorer l’accès à une alimentation de qualité dans les quartiers de la politique de la ville ? Nicolas Le Roux, responsable du pôle Ville productive et créative à l’Agence nationale de rénovation urbaine (ANRU), et Julie-Jane Thoreau, cheffe de projet à la direction générale déléguée politique de la ville de l’Agence nationale de cohésion des territoires (ANCT), apportent des éléments de réponse.
Pour une église à l’écoute de la vie
Authors: Pelletier Anne-Marie , Baujard Monique 
Published: July 2024

La liberté accordée aux femmes de recourir à une interruption volontaire de grossesse (IVG) est une question très sensible. Les débats politiques sont souvent fort violents et les positions extrêmement tranchées. Le magistère catholique a toujours fermement condamné le recours à l’avortement. La réflexion gagne pourtant à mieux entendre la parole des femmes. La défense de la vie et de la « dignité humaine » ne peut que profiter de cette voix qui témoigne d’une « histoire blessée ».
La naissance et les débuts de la documentation professionnalisée : entre réflexions professionnelles et volontarisme étatique
Authors: Baude Catherine , Krumnov Marie-Pascale 
Published: July 2024

La création de l’ADBS en 1963 s’inscrit dans une longue histoire, celle de la documentation professionnelle. Cet article retrace sa genèse, depuis l’essor de la science et des revues au xix e siècle, en passant par l’émergence du concept de documentation, l’essor des centres spécialisés, les publications, la mise en place d’un enseignement dédié, les nouveaux services, les métiers, les grandes figures… Il met en évidence le lien entre le développement, aux marges des bibliothèques, de services dédiés à l’information spécialisée et la démarche de professionnalisation de la fonction documentaire. Il souligne les enjeux stratégiques que les États (États-Unis en tête, Europe, France en particulier) n’ont pas manqué de relever, dans un contexte où l’informatique s’impose dans le domaine professionnel.
Sainte-Anne de Jérusalem : un séminaire grec melkite catholique au service de l’Unité ?
Authors: Bouwen Frans 
Published: July 2024

Cet article examine la contribution du Séminaire de Sainte-Anne à Jérusalem (1882-1967) à l’identité, à la pensée théologique et à la vocation œcuménique de l’Église grecque melkite catholique. Fondé par le cardinal Lavigerie avec la vision du respect des traditions orientales et de la formation du clergé local, le séminaire a formé plus de 300 prêtres melkites, dont des évêques et patriarches. Ses professeurs ont œuvré pour une meilleure connaissance de l’Orient chrétien, notamment lors du Congrès eucharistique de 1893 à Jérusalem. Le Séminaire a ainsi préparé le terrain pour une nouvelle politique de Rome envers l’Orient. La revue Proche-Orient Chrétien (1951) a marqué l’entrée dans l’œcuménisme authentique. Au Concile Vatican II, l’Église melkite, représentée notamment par d’anciens de Sainte-Anne, a plaidé pour « réserver la place de l’Absent », facilitant le rapprochement avec les Églises orthodoxes. L’auteur suggère que la formation reçue à Sainte-Anne a contribué à cette ouverture œcuménique de l’Église melkite.
Étude exploratoire sur un leadership empathique
Authors: Pourquier Catherine 
Published: July 2024

Cette étude exploratoire porte sur le leadership du prix Nobel de la paix Muhammad Yunus. En nous appuyant sur la littérature et sur des données qualitatives, codées avec Nvivo, nous cherchons à mieux comprendre son leadership. L’angle d’approche de ce papier est la dimension empathique du leadership. La revue de la littérature met en lumière comment l’empathie peut être au service d’un alignement entre les valeurs et l’engagement éthique du leader. L’étude du verbatim constitué d’un entretien personnel avec M. Yunus et de plusieurs entretiens avec ses proches collaborateurs permet de comprendre la spécificité de son leadership empathique. Les résultats de notre étude qualitative exploratoire soulignent la posture « hors norme » du leadership de M. Yunus qui allie notamment des qualités de communication exceptionnelles et une capacité à mettre une pensée intellectuelle en action dans un engagement collectif et altruiste. Notre contribution réside dans un modèle original du leadership de M. Yunus qui montre comment sa dynamique émotionnelle supportée par une forte empathie permet le déploiement d’un leadership multifacette aux compétences particulières basé sur un alignement entre ses valeurs et son engagement.
Proposition d’articulation pratique des théories du bien-être et du mal-être au travail
Authors: Ottmann Jean-Yves 
Published: July 2024

Le bien-être et le mal-être au travail sont des notions abordées par de nombreux termes et concepts. Les différents modèles proposent des articulations différentes des deux concepts. Cette diversité conceptuelle et la difficulté à l’articuler est un problème pour les praticiens qui peuvent peiner à se saisir de ces objets. Cet article est une proposition théorique d’articulation de ces champs, à travers un cadre conceptuel destiné à être opérationnel de manière pratique. Il propose un panorama réflexif des champs de littérature qui ont étudié le bien-être et du mal-être au travail puis un modèle théorique capable d’intégrer les modèles conceptuels existants et d’articuler les concepts de bien-être et mal-être au travail entre eux. Dans ce modèle deux éléments disjoints, l’un subjectif et l’autre analytique, sont articulés pour former une matrice conduisant à quatre rapports au travail : le bien-être, le mal-être, le retrait et l’ambivalence. Cet article discute enfin les contributions théoriques mais surtout pratiques de cette conceptualisation proposant ainsi un modèle d’analyse et d’action pour les praticiens.
Mécanismes de sécurisation des revenus pour les travailleurs précaires et qualité des relations sociales : une étude expérimentale
Authors: Couprie Hélène , Peterle Emmanuel , Tisserand Jean-Christian 
Published: July 2024

Cet article relate les résultats d’une expérience économique simulant le fonctionnement d’un marché du travail dual. L’économie, stylisée, est présentée aux participants de manière contextualisée, mettant en scène des travailleurs « permanents » et « temporaires » collaborant de façon répétée, pour produire un bien public au sein d’entreprises. Nous comparons les contributions des travailleurs « permanents » et « temporaires » et mesurons l’impact de la mise en place de mécanismes visant à sécuriser le revenu des travailleurs précaires (assurance chômage, prime de précarité) sur la contribution de ces derniers au bien public, ainsi que sur la confiance interpersonnelle. La présence de travailleurs temporaires et permanents n’affecte pas la performance globale de notre économie ni la propension moyenne à contribuer pour le bien public. Bien que la diminution des inégalités puisse en théorie favoriser un environnement propice à la coopération, l’application de ces mesures, notamment via l’imposition de taxes ou l’introduction de primes à destination exclusive des travailleurs précaires, altère les incitations individuelles à contribuer. Nous constatons ainsi que les mesures de sécurisation des revenus pour les travailleurs précaires tendent à affaiblir les comportements de coopération dans notre cadre expérimental. Nous observons aussi que les participants accordent davantage leur confiance aux travailleurs permanents qu’aux travailleurs temporaires.
Didier Motchane, dans les pas de Lucien Herr et d’Antonio Gramsci. Souvenirs politiques intimes
Authors: Brustier Gaël 
Published: July 2024

Ce texte rassemble quelques souvenirs de Didier Motchane (1931-2017) au cours des années 2000-2010, en le comparant à deux figures historiques du socialisme : le Français Lucien Herr (1864-1926) et l’Italien Antonio Gramsci (1891-1937). Il dessine les apports intellectuels et politiques de Motchane comme un scintillement ultime des Lumières du socialisme français.
Expirer et surgir en images. Un Mensch de Dominique Cabrera
Authors: Savelli Julie 
Published: July 2024

Il arrive que certaines œuvres éprouvent la mort en images dans un geste documentaire sans commune mesure. Un Mensch, film réalisé en 2023 par Dominique Cabrera, est de celles-là. Si la disparition est un thème central dans l’œuvre de la réalisatrice, c’est la première fois qu’elle s’en approche d’aussi près en filmant la dernière année de l’existence de son mari, Didier Motchane. Ensemble, ils prennent acte de la mort qui vient ; absorbent le sensible tel un buvard par capillarité tandis que le glissement vers la perte se produit sans filet. En regardant Dominique Cabrera (la caméra et le film) droit dans les yeux jusqu’à son dernier souffle, Didier Motchane pose à l’intersection de la vie et de la mort, pour l’éternité.
Assessment of Sterilization Operations among Eligible Couples in Two Districts with High Total Fertility Rate in Tribal Odisha: An Effort to Plan to Offer Respectful Contraceptive Operative Services
Authors: Kar Sonali , Samantaray Pramod Chandra , Routray Surya Prakash , Ray Angana 
Published: July 2024

Abstract
A survey in two districts of Odisha with reportedly high total fertility rates, i.e., Boudh and Koraput (Annual Health Survey-2014), was performed under the aegis of the Indian Council of Medical Research, aiming to improve male participation in contraceptive acceptance and services. One hundred and forty-eight women out of 217 sterilization acceptors consented to the study. A semi-structured questionnaire with responses regarding the preoperative, operative, and postoperative experiences was used as the tool, and responses were analyzed in SPSS version 25. The outcome variable was a self-reported score of satisfaction on a scale of 1–10; wherein eight was reported by 42.7% of total women. The satisfaction score using linear regression was significant for the total times the woman was pregnant (β = −0.369; P = 0.002), with a unit increase in times, the woman was pregnant, and the satisfaction declined by 0.363 units. The study provides evidence of greater advocacy of a less heard mandate of “respectful contraception.”
Prevalence of Wasting and its Associated Factors among Children Under 5 Years of Age in India: Findings from the Comprehensive National Nutrition Survey
Authors: Choudhary Tarun Shankar , Manapurath Rukman , Chowdhury Ranadip , Taneja Sunita , Daniel Abner , Johnston Robert , de Wagt Arjan , Bhandari Nita 
Published: July 2024

Abstract

Background:
The burden of wasting among under five children in India, has not reduced in the last decade.

Objectives:
We used child-level data from the latest nationally representative Comprehensive National Nutritional Survey (CNNS) to estimate the prevalence of wasting at the national and state level in India.

Methods:
We explored the association of wasting with maternal, child and household factors using multivariable logistic regression for the age group of 0-5, 6-23 and 24-59 months.

Results:
The overall prevalence of wasting was 17.3%, ranging from 5.8% to 29.1% across states, 23.3% in children 0-5 months, 19.6 % in children 6-23 months and 15.4 % in children 24-59 months of age. Higher birthweight i.e., every 100g increase (0-5 months aOR = 0.96, 6-23 months aOR = 0.94, 24-59 months aOR = 0.96), higher maternal BMI (0-5 months aOR = 0.51, 6-23 months aOR = 0.62, 24-59 months aOR = 0.67), increasing child age in months (0-5 months aOR = 0.84) and female sex of the child (24-59 months aOR = 0.82) was found to have significantly lower odds of wasting. The odds of wasting were significantly higher for poorest wealth quintile (0-5 months aOR = 1.99, 6-23 months aOR = 2.13), maternal unemployment (0-5 months aOR = 2.25), and lower levels of maternal education (6-23 months aOR = 1.74).

Conclusions:
Our analyses showed that burden of wasting continues to remain high in India. Preventive interventions must target reduction of low birthweight. Early identification and management of wasting should be done, especially during the first six months of life who are not part of current therapeutic feeding programme.