bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improving Damped Random Walk Parameters for SDSS Stripe 82 Quasars with Pan-STARRS1
Authors: Suberlak Krzysztof L. , Ivezić Željko , MacLeod Chelsea 
Published: February 2021

Abstract
We use the Panoramic Survey Telescope and Rapid Response System 1 Survey (Pan-STARRS1, PS1) data to extend the Sloan Digital Sky Survey (SDSS) Stripe 82 quasar light curves. Combining PS1 and SDSS light curves provides a 15 yr baseline for 9248 quasars—5 yr longer than prior studies that used only SDSS. We fit the light curves with the damped random walk (DRW) model—a statistical description of their variability. We correlate the resulting DRW model parameters: asymptotic variability amplitude SF∞, and characteristic timescale τ, with quasar physical properties—black hole mass, bolometric luminosity, and redshift. Using simulated light curves, we find that a longer baseline allows us to better constrain the DRW parameters. After adding PS1 data, the variability amplitude is a stronger function of the black hole mass and has a weaker dependence on quasar luminosity. In addition, the characteristic timescale τ dependence on quasar luminosity is marginally weaker. We also make predictions for the fidelity of DRW model parameter retrieval when light curves will be further extended with Zwicky Transient Facility and Rubin Observatory Legacy Survey of Space and Time data. Finally, we show how updated DRW parameters offer an independent method of discovering changing-look quasar candidates (CLQSOs). The candidates are outliers in terms of differences in magnitude and scatter between the SDSS and PS1 segments. We identify 40 objects (35 newly reported) with a tenfold increase in the variability timescale between SDSS and SDSS–PS1 data due to a large change in brightness (over 0.5 mag)—characteristic for CLQSOs.
MOSEL and IllustrisTNG: Massive Extended Galaxies at z = 2 Quench Later Than Normal-size Galaxies
Authors: Gupta Anshu , Tran Kim-Vy , Pillepich Annalisa , Yuan Tiantian , Harshan Anishya , Rodriguez-Gomez Vicente , Genel Shy 
Published: February 2021

Abstract
Using the TNG100 (100 Mpc)3 simulation of the IllustrisTNG project, we demonstrate a strong connection between the onset of star formation quenching and the stellar size of galaxies. We do so by tracking the evolutionary history of extended and normal-size galaxies selected at z = 2 with

and stellar-half-mass-radii above and within 1σ of the stellar size–stellar mass relation, respectively. We match the stellar mass and star formation rate distributions of the two populations. By z = 1, only 36% of the extended massive galaxies have quenched, in contrast to a quenched fraction of 69% for the normal-size massive galaxies. We find that normal-size massive galaxies build up their central stellar mass without a significant increase in their stellar size between

, whereas the stellar size of the extended massive galaxies almost doubles in the same time. In IllustrisTNG, lower black hole masses and weaker kinetic-mode feedback appears to be responsible for the delayed quenching of star formation in the extended massive galaxies. We show that relatively gas-poor mergers may be responsible for the lower central stellar density and weaker supermassive black hole feedback in the extended massive galaxies.
Properties of Neutrino Transfer in a Deformed Remnant of a Neutron Star Merger
Authors: Sumiyoshi Kohsuke , Fujibayashi Sho , Sekiguchi Yuichiro , Shibata Masaru 
Published: February 2021

Abstract
We study properties of neutrino transfer in a remnant of a neutron star merger, consisting of a massive neutron star and a surrounding torus. We perform numerical simulations of the neutrino transfer by solving the Boltzmann equation with momentum-space angles and energies of neutrinos for snapshots of the merger remnant having elongated shapes. The evaluation of the neutrino distributions in multiple dimensions enables us to provide detailed information on the angle and energy spectra and neutrino reaction rates. We demonstrate features of asymmetric neutrino fluxes from the deformed remnant and investigate the neutrino emission region by determining the neutrinosphere for each energy. We examine the emission and absorption of neutrinos to identify important ingredients of heating rates through neutrino irradiation. We show that the contributions of μ- and τ-type neutrinos are important for the heating in the region above the massive neutron star. We also examine the angle moments and the Eddington tensor calculated directly from the neutrino distribution functions and compare them with those obtained by a moment closure approach, which is often used in the study of neutrino-radiation hydrodynamics. We show that the components of the Eddington tensor have non-monotonic behaviors, and the approximation of the closure relation may become inaccurate for high-energy neutrinos, whose fluxes are highly aspherical due to the extended merger remnant.
HAZMAT. VII. The Evolution of Ultraviolet Emission with Age and Rotation for Early M Dwarf Stars
Authors: Loyd R. O. Parke , Shkolnik Evgenya L. , Schneider Adam C. , Richey-Yowell Tyler , Jackman James A. G. , Peacock Sarah , Barman Travis S. , Pagano Isabella , Meadows Victoria S. 
Published: February 2021

Abstract
The ultraviolet (UV) emission from the most numerous stars in the universe, M dwarfs, impacts the formation, chemistry, atmospheric stability, and surface habitability of their planets. We have analyzed the spectral evolution of UV emission from M0–M2.5 (0.3–0.6 M
⊙) stars as a function of age, rotation, and Rossby number using Hubble Space Telescope observations of Tucana-Horologium (40 Myr), Hyades (650 Myr), and field (2–9 Gyr) objects. The quiescent surface flux of their C ii, C iii, C iv, He ii, N v, Si iii, and Si iv emission lines, formed in the stellar transition region, remains elevated at a constant level for 240 ± 30 Myr before declining by 2.1 orders of magnitude to an age of 10 Gyr. The Mg ii and far-UV pseudocontinuum emission, formed in the stellar chromosphere, exhibits more gradual evolution with age, declining by 1.3 and 1.7 orders of magnitude, respectively. The youngest stars exhibit a scatter of 0.1 dex in far-UV line and pseudocontinuum flux attributable only to rotational modulation, long-term activity cycles, or an unknown source of variability. Saturation-decay fits to these data can predict an M0–M2.5 star’s quiescent emission in UV lines and the far-UV pseudocontinuum with an accuracy of 0.2–0.3 dex, the most accurate means presently available. Predictions of UV emission will be useful for studying exoplanetary atmospheric evolution and the destruction and abiotic production of biologically relevant molecules and interpreting infrared and optical planetary spectra measured with observatories like the James Webb Space Telescope.
Penser le corps : l’avant-garde pascalienne
Authors: Lyraud Pierre 
Published: February 2021

Le christianisme approfondit sans doute l’ambiguïté qui frappe le corps humain de façon presque originelle – le sôma platonicien l’atteste. Partagé entre sa corruptibilité, dont il n’est pas en lui-même responsable, et la promesse de sa Résurrection, il est fustigé autant que glorifié. Il en est de même chez Pascal, si naturellement enclin à souligner la réversibilité des choses, leur vanité comme leur raison d’être. Plus soucieux de repérer sa charge existentielle que de le condamner de façon moraliste ou de l’étudier de façon scientifique, Pascal se distingue ainsi par l’importance qu’il lui accorde d’un bout à l’autre des Pensées , avec un regard quasi phénoménologique.
Les expériences de mort imminente en service de réanimation et au-delà entre logiques de l’opératoire et processus de subjectivation
Authors: Rabeyron Thomas , Minjard Raphaël 
Published: February 2021

Les expériences de mort imminente désignent un vécu subjectif évoqué par certains patients dans des contextes réels ou supposés de mise en danger de leur vie, en particulier lors d’éveils de coma ou à la suite d’arrêts cardiaques. Ces expériences aux frontières de la subjectivité interrogent nos modèles théoriques et cliniques. Dans cette perspective, nous proposons dans ce travail une réflexion à partir de la rencontre de deux cliniques confrontées à ces expériences. La première concerne la pratique de psychologue clinicien en service de réanimation menant à la rencontre et au récit de patients « sur le vif » en milieu hospitalier. La seconde provient de l’expérience d’un service de consultation spécialisé dans les expériences exceptionnelles recueillant des récits d’expériences de mort imminente dans l’après-coup. Un constat émerge à la rencontre de ces deux cliniques, à savoir que ces vécus ne sont pas décrits de la même manière au sein de ces deux espaces. Les auteurs tentent de rendre intelligible cette observation dans le but de mieux comprendre la nature de ces expériences en fonction de leur contexte d’émergence. Quelques recommandations sont proposées en conclusion concernant l’accueil de ces récits et la manière de les considérer aussi bien en milieu hospitalier que dans le cadre de consultations cliniques dans d’autres cadres.
Etudes cognitives et neuroscientifiques récentes des expériences de mort imminente : contribution du Coma Science Group
Authors: Bacqué Anthony 
Published: February 2021

Cet article a pour objectif de mettre en lumière des recherches récentes et empiriques sur les expériences de mort imminentes (EMI), à travers des approches cognitives et neuroscientifiques. L’équipe du Coma Science Group est une des plus prolifiques dans le domaine. Leurs recherches s’articulent autour de deux axes : l’un centré sur la phénoménologie de l’expérience ; l’autre sur les caractéristiques psychologiques des expérienceurs. Le but étant, d’une part, d’extraire des facteurs prédictifs de leur occurrence dans la population, et d’autre part, leurs mécanismes cérébraux, cognitifs et psychologiques.
Adolescence exilée, les enjeux de confrontations complexes à la mort. Trauma, pertes et reconstruction
Authors: De Geynst Catherine 
Published: February 2021

L’auteure part de son expérience en tant que psychologue clinicienne au sein d’un refuge pour mineurs migrants non-accompagnés. La mort est omniprésente sur leur trajet migratoire. Comment la confrontation à l’irreprésentable agit-elle sur leur psychisme ? La clinicienne présente leurs symptômes post-traumatiques ainsi que les effets sur les soignants pour amener une réflexion autour de ce qui restaure. L’auteur suggère la construction d’un lien thérapeutique engagé visant la réhumanisation du patient.
Figures du souverain dans les tragédies de Hardy Panthée et Mariamne
Authors: Berregard Sandrine 
Published: February 2021

L’analyse des deux tragédies de Hardy Panthée et Mariamne conduit à la mise au jour d’une tragédie du pouvoir, dans laquelle se développe une réflexion à la fois morale et politique. Selon qu’ils incarnent la vertu ou le vice, les débordements de la passion ou la maîtrise de soi à laquelle en appelle par exemple le stoïcisme, les personnages se répartissent en deux grandes catégories. La vocation édifiante du genre tragique tel que le pratique le dramaturge se trouve dès lors pleinement illustrée. Mais, peut-être plus qu’aucun autre poète de son temps, Hardy associe étroitement le docere et le movere . La conduite admirable par laquelle se distingue Cirus ou, dans la sphère domestique, Mariamne est rendue aussi séduisante par les ornements du discours qui accompagnent en particulier les propos sentencieux.
La représentation des origines dans L’Astrée d’Honoré d’Urfé
Authors: Méniel Bruno 
Published: February 2021

Honoré d’Urfé situe l’action de L’Astrée au v e siècle, précisément à l’époque de la dernière invasion significative pour la constitution de la nation française, celle des Francs. Il rappelle que chacun est libre de reconnaître les ancêtres dont il se sent l’héritier. À la lumière de son expérience politique et amoureuse, il réinvente la naissance de sa petite patrie. La rêverie sur les origines est une interrogation sur les vertus de génération en génération.
Distinguer sans séparer. La définition aristotélicienne de la vertu éthique
Authors: Morel Pierre-Marie 
Published: February 2021

En Éthique à Nicomaque II 4-6, Aristote entend donner une définition cohérente de la vertu éthique. Cependant, de manière assez surprenante, la dernière étape de la définition mentionne le phronimos et par son intermédiaire la sagesse pratique ( phronêsis ), qui est une vertu intellectuelle et non une vertu éthique : la vertu éthique est « une disposition à décider ( hexis proairetikê ), située dans un juste milieu relatif à nous, déterminé par la raison, et comme le déterminerait le prudent ». Pour résoudre cette énigme, on soutient ici que la recherche d’une définition de la vertu éthique est en partie motivée par le débat autour de l’unité de la vertu. En disant que la vertu éthique est proairetikê , Aristote réserve une place à la sagesse pratique dans sa définition. Ce faisant, il renforce sa propre conception de l’unité (ou réciprocité) des vertus : une distinction sans séparation.
The definition of particular justice
Authors: Zingano Marco 
Published: February 2021

Cet article soulève deux problèmes. Le premier concerne l’origine – nicomachéenne ou eudémienne – de la définition de la justice particulière qu’on trouve en EN V (= EE IV). Le second concerne le sens qu’Aristote veut donner à la thèse selon laquelle la justice particulière n’est pas un moyen terme au même titre que les autres vertus. C’est ce qui est affirmé en V 5, 1133b32-34a1; pour mieux comprendre cette thèse, différentes versions de ce passage sont examinées.
T Cells Specific for a Mycobacterial Glycolipid Expand after Intravenous Bacillus Calmette–Guérin Vaccination
Authors: Layton Erik D. , Barman Soumik , Wilburn Damien B. , Yu Krystle K. Q. , Smith Malisa T. , Altman John D. , Scriba Thomas J. , Tahiri Nabil , Minnaard Adriaan J. , Roederer Mario , Seder Robert A. , Darrah Patricia A. , Seshadri Chetan 
Published: February 2021

Abstract
Intradermal vaccination with Mycobacterium bovis bacillus Calmette–Guérin (BCG) protects infants from disseminated tuberculosis, and i.v. BCG protects nonhuman primates (NHP) against pulmonary and extrapulmonary tuberculosis. In humans and NHP, protection is thought to be mediated by T cells, which typically recognize bacterial peptide Ags bound to MHC proteins. However, during vertebrate evolution, T cells acquired the capacity to recognize lipid Ags bound to CD1a, CD1b, and CD1c proteins expressed on APCs. It is unknown whether BCG induces T cell immunity to mycobacterial lipids and whether CD1-restricted T cells are resident in the lung. In this study, we developed and validated Macaca mulatta (Mamu) CD1b and CD1c tetramers to probe ex vivo phenotypes and functions of T cells specific for glucose monomycolate (GMM), an immunodominant mycobacterial lipid Ag. We discovered that CD1b and CD1c present GMM to T cells in both humans and NHP. We show that GMM-specific T cells are expanded in rhesus macaque blood 4 wk after i.v. BCG, which has been shown to protect NHP with near-sterilizing efficacy upon M. tuberculosis challenge. After vaccination, these T cells are detected at high frequency within bronchoalveolar fluid and express CD69 and CD103, markers associated with resident memory T cells. Thus, our data expand the repertoire of T cells known to be induced by whole cell mycobacterial vaccines, such as BCG, and show that lipid Ag-specific T cells are resident in the lungs, where they may contribute to protective immunity.
Prevalence and intensity of soil-transmitted helminth infections among school-age children in the Cagayan Valley, the Philippines
Authors: Labana Ryan V. , Romero Vimar A. , Guinto Analette M. , Caril Alvin N. , Untalan Kimberly D. , Reboa Alejandro Jose C. , Sandoval Khristine L. , Cada Kristel Joy S. , Lirio Gary Antonio C. , Bernardo Iris Rowena A. , Arocha Lanieleen Jerah Mae , Dungca Julieta Z. 
Published: February 2021

Objective:
To identify the prevalence of soil-transmitted helminthiasis (STH) among school-age children in the Cagayan Valley, the Philippines, assess their level of awareness on the disease, and determine predisposing factors of the disease.

Methods:
A total of 478 Grades III-V school-age children in Pamplona and Sanchez-Mira School Districts in the Cagayan Valley answered the questionnaire assessing their knowledge, attitude, and practices on STH, subjected to anthropometric measurements, and provided faecal samples for parasitologic assessment (direct smear, Kato-Katz, and formol-ether concentration techniques).

Results:
The participants of the study, with 55.86% females, were 8 to 14 years old. Their nutritional status was assessed ‘normal’ (84.31%), ‘severely wasted’ (6.49%), ‘wasted’ (5.23%), ‘overweight’ (2.72%), and ‘obese’ (1.26%). The prevalence of infection with at least 1 STH species was 25.99% in Pamplona and 19.40% in Sanchez- Mira. Overall, the prevalence of heavy intensity was 7.11% for Ascaris lumbricoides and 1.67% for Trichuris trichiura. All hookworm infections had light intensities. The majority of the school-age children had a low score in the KAP test. In knowledge of STH, ‘stunted growth as a symptom of infection’ was associated with a lower risk of Ascaris lumbricoides infection (OR 0.448; 95% CI 0.212, 0.945; P=0.035) while ‘playing with soil as a mode of transmission’ was associated with an increased risk of Ascaris lumbricoides infection (OR 2.067; 95% CI 1.014, 4.212; P=0.046). In attitude towards STH, ‘I think I have intestinal worm now’ was associated with a higher risk of Ascaris lumbricoides infection (OR 1.681; 95% CI 1.061, 2.662; P=0.027).

Conclusions:
The prevalence rate of Ascaris lumbricoides among the school-age children in the Cagayan Valley shows the need to further intensify intervention in the area to meet the threshold set by the World Health Organization. The identified predictors of infection, which concerns the school-age children's knowledge and attitude toward STH, can be used in augmenting intervention programs in the future.
How knowledge of hepatitis B disease and vaccine influences vaccination practices among parents in Ho Chi Minh City, Vietnam
Authors: Huynh Giao , Pham Le An , Tran Thien Thuan , Cao Ngoc Nga , Nguyen Thi Ngoc Han , Bui Quang Vinh 
Published: February 2021

Objective:
To assess the influences of the knowledge of parents about hepatitis B virus (HBV) infection and the benefit of HBV vaccination on the practice of HBV vaccination among children.

Methods:
A prospective cross-sectional study recruited parents whose children, aged 12-24 months, received HBV vaccination at Commune Health Centers (CHCs) in Ho Chi Minh City from Feb. 2016 to Jul. 2017. Parents were interviewed using a questionnaire that included 11-item binary knowledge questions and checked their children's vaccination cards.

Results:
A total of 768 parents had a mean age of (30.8±5.1) years. The mean knowledge score of the 11- item questions was (7.0±2.4). The knowledge score was positively associated with full and timely HBV vaccination. In addition, children who received complete and timely HBV vaccination were significantly more likely to live in rural areas (Adjusted OR 4.02, 95% CI 2.79-5.79, P<0.001). Also, children whose parents received vaccination information from health care providers, and had knowledge about HBV risk, had a higher rate of full and timely HBV vaccination (Adjusted OR 1.60, 95% CI 1.13-2.29, and Adjusted OR 1.47, 95% CI 1.01-2.13, P all<0.05).

Conclusions:
Parents possessed a great deal of incorrect knowledge about HBV. More health education from health care providers should target parents living in specific locations and focus on the benefits of HBV vaccine.
Burkholderia pseudomallei infection manifests as mediastinal/hilar lymphadenopathy
Authors: Li Qi , Xia Qian-Feng , Sun Qiong-Fang , Zhou Xiang-Dong 
Published: February 2021

Rationale:
This case report presents the diagnosis and etiology of hilar/mediastinal lymphadenopathy in a male patient.

Patient concerns:
A 49-year-old man presented with fever and dyspnea after physical exertion.

Diagnosis:
The patient was diagnosed with melioidosis by cultivation of lymph node aspirate on blood agar using the VITEK 2 compact system.

Interventions:
The patient was treated with ceftazidime intravenously, combined with trimethoprim/sulfamethoxazole orally for 1 week. Once the patient was discharged, he began a 12-week course of trimethoprim/sulfamethoxazole.

Outcomes:
The patient recovered after treatment with ceftazidime and trimethoprim/sulfamethoxazole.

Conclusions:
Melioidosis is an infectious disease that mainly occurs in tropical regions. It can cause severe sepsis and pneumonia, and the infection in some patients may become chronic. Endobronchial ultrasound-transbronchial needle aspiration is a useful technique in the diagnosis of patients with hilar/mediastinal lymphadenopathy.
Study of Serum Uric Acid and Homocysteine Levels in Acute Ischemic Stroke
Authors: Patil Srinith B. , Belli Basawaraj , Biradar Sangram , Patil Anil 
Published: February 2021

Introduction:
Worldwide, stroke is the third most common cause of death after coronary heart disease and all cancer deaths. All the physicians have a role to play in the prevention of stroke by encouraging the reduction in risk factors. Ischemic stroke accounts for >80% of total stroke events. There is growing evidence that high serum uric acid and homocysteine levels contribute to the pathogenesis of ischemic stroke, and early identification of individuals at risk could be of help in primary prevention strategies.

Aims:
The aim was to study the association between levels of serum uric acid and homocysteine and acute ischemic stroke and to compare them with control subjects.

Materials and Methods:
A case–control study was carried out among 100 subjects, which included 50 cases of first-time ischemic stroke and 50 healthy controls attending the outpatient department and casualty, in whom serum uric acid levels, serum homcysteine, and other associated risk factors were evaluated.

Results:
The overall mean age of the case population was 55.84 ± 15.57 years and control was 59.92 ± 11.62 years. Among the 50 cases of first-time ischemic stroke and 50 controls, males constituted 32 (64%) and 30 (60%), respectively. The mean uric acid level in case population was 5.32 ± 1.09 mg/dl and in controls was 3.21 ± 1.01 (P = 0.001). The mean homocysteine level in case population was 20.85 ± 10.85 μmol/l and in controls was 8.10 ± 3.54 (P = 0.001). Among the case population, 28 (56%) were found to have hypertension, followed by smoking 19 (38%), diabetes mellitus 18 (36%), and alcoholism 13 (26%).

Conclusion:
Significant elevation of both uric acid and homocysteine in a cohort of stroke patients when compared to the control group was found. Thus, it is concluded from the present study that an elevated uric acid and homocysteine level appears to be an important risk factor for stroke. Hypertension was found to be the most common modifiable risk factor.
Prognostic Significance of Thyroid Dysfunction in Acute Stroke
Authors: Nagri Shivashankara Kaniyoor , Kudru Chandrasekhar Udayavara , Amaravadi Sampath Kumar , Prasad Laxmi 
Published: February 2021

Background:
Cerebrovascular accidents (CVAs) are the leading cause of morbidity and mortality. Several comorbidities have been associated with increased mortality in acute stroke patients. Conditions such as hypertension, dyslipidemia, diabetes mellitus, and thyroid dysfunction are identified as risk factors in the etiology of stroke.

Methods:
This is a prospective study involving 40 patients admitted with acute stroke between October 2010 and July 2012 in Kasturba Hospital, Manipal, under the Departments of Medicine and Neurology.

Results:
Thyroid dysfunction has been associated with CVAs and is an area of active research in the present times.

Conclusion:
Low T3 level was associated with unfavorable outcome and with posterior circulation stroke as accessed using the National Institutes of Health Stroke Scale.