bluuebunny/crossref_metadata_2025_split huggingface dataset:
Radiative Driving of the AGN Outflows in the Narrow-line Seyfert 1 Galaxy NGC 4051*

†
Authors: Meena Beena , Crenshaw D. Michael , Schmitt Henrique R. , Revalski Mitchell , Fischer Travis C. , Polack Garrett E. , Kraemer Steven B. , Dashtamirova Dzhuliya 
Published: July 2021

Abstract
We explore the properties of ionized gas in the nuclear and circumnuclear environment of the narrow-line Seyfert 1 galaxy NGC 4051 using spectroscopic and imaging observations from the Hubble Space Telescope (HST) and Apache Point Observatory's ARC 3.5 m Telescope. We identify an unresolved moderate-density intermediate-width component and a high-density broad component in the optical emission lines from the active nucleus, as well as spatially resolved emission extending up to ∼1 kpc in the active galactic nucleus (AGN) ionized narrow-line region (NLR) and ∼8 kpc in the stellar ionized host galaxy. The HST narrowband image reveals a distinct conical structure in [O iii] emission toward the NE, and the ionized gas kinematics shows up to two blueshifted velocity components, indicating outflows along the edges of a cone. We introduce an improved model of biconical outflow, with our line of sight passing through the wall of the cone, which suggests that the large number of outflowing UV absorbers seen in NGC 4051 are NLR clouds in absorption. Using the deprojection factors from the biconical geometry, we measure true outflow velocities up to 680 km s−1 at a distance of ∼350 pc; however, we do not find any rotational signature inside a projected distance of

≤

10″ (∼800 pc) from the nucleus. We compare the gas kinematics with analytical models based on a radiation-gravity formalism, which show that most of the observed NLR outflows are launched within ∼0.5 pc of the nucleus and can travel up to ∼1 kpc from this low-luminosity AGN.
Trajectory Analysis of Galactic Cosmic Rays Invading into the Heliosphere
Authors: Yoshida Kotaro , Matsukiyo Shuichi , Shimokawa Kesuke , Washimi Haruichi , Hada Tohru 
Published: July 2021

Abstract
The trajectories of galactic cosmic-ray protons invading the heliosphere are investigated by using numerical simulations. A time stationary global heliosphere is first reproduced by using a high-resolution MHD simulation. Then, motions of a number of test particles (protons) distributed in the virtual heliosphere are numerically solved. When the initial particle Lorentz factor is 10 (∼10 GeV), the motions of particles are strongly affected by small-scale heliospheric structures reflecting the small gyroradii of the particles. Particles can enter the heliosphere from many parts (nose, flank, and tail) of the heliopause. Once they have entered, they expand in the region where the magnetic field is locally weak, such as the heliopause and the heliospheric current sheet. On the other hand, particles have difficulty invading upstream of the termination shock. We found a variety of invading particle trajectory patterns such as current sheet drift, polar drift, spiral motion, shock drift, and Fermi-like acceleration. In the latter two, particles are accelerated. When the initial particle Lorentz factor is 1000 (∼1 TeV), the particles are insensitive to the small-scale structures of the heliosphere due to their large gyroradii. Some particles show eccentric motions due to resonant interaction with the large-scale eddy in the heliotail. Some other particles passing by the heliosphere are mirror reflected due to the bottleneck structure of interstellar magnetic field surrounding the heliosphere and return back to enter the heliosphere.
Cross-match between the Latest Swift-BAT and Fermi-LAT Catalogs
Authors: Tsuji Naomi , Yoneda Hiroki , Inoue Yoshiyuki , Aramaki Tsuguo , Karagiorgi Georgia , Mukherjee Reshmi , Odaka Hirokazu 
Published: July 2021

Abstract
We report the results of a cross-match study between the hard X-ray and GeV gamma-ray catalogs, by making use of the latest 105 month Swift-Burst Alert Telescope (BAT) and 10 yr Fermi-Large Area Telescope (LAT) catalogs, respectively. The spatial cross-matching between the two catalogs results in the matching of 132 point-like sources, including ∼5% of false-match sources. Additionally, 24 sources that have been identified as the same identifications are matched. Among the 75 extended sources in the Fermi-LAT catalog, 31 sources have spatial coincidences with at least one Swift-BAT source inside their extent. All the matched sources consist of blazars (>60%), pulsars and pulsar wind nebulae (∼13%), radio galaxies (∼7%), binaries (∼5%), and others. Compared to the original catalogs, the matched sources are characterized by a double-peaked photon index distribution, higher flux, and larger gamma-ray variability index. This difference arises from the different populations of sources, particularly the large proportion of blazars (i.e., flat-spectrum radio quasar and BL Lac). We also report 13 cross-matched and unidentified sources. The matched sources in this study would be promising in the intermediate energy band between the hard X-ray and GeV gamma-ray observations, that is the unexplored MeV gamma-ray domain.
On the Random Motion of Nuclear Objects in a Fuzzy Dark Matter Halo
Authors: Dutta Chowdhury Dhruba , van den Bosch Frank C. , Robles Victor H. , van Dokkum Pieter , Schive Hsi-Yu , Chiueh Tzihong , Broadhurst Tom 
Published: July 2021

Abstract
Fuzzy dark matter (FDM), consisting of ultralight bosons (

m

b

∼

10

−
22

eV

), is an intriguing alternative to cold dark matter. Numerical simulations that solve the Schrödinger–Poisson (SP) equation show that FDM halos consist of a central solitonic core, which is the ground state of the SP equation, surrounded by an envelope of interfering excited states. These excited states also interfere with the soliton, causing it to oscillate and execute a confined random walk with respect to the halo center of mass. Using high-resolution numerical simulations of a

6.6
×

10

9

M

⊙

FDM halo with

m

b

=
8
×

10

−
23

eV

in isolation, we demonstrate that the wobbling, oscillating soliton gravitationally perturbs nuclear objects, such as supermassive black holes or dense star clusters, causing them to diffuse outwards. In particular, we show that, on average, objects with mass ≲0.3% of the soliton mass (

M

sol

) are expelled from the soliton in ∼3

Gyr

, after which they continue their outward diffusion due to gravitational interactions with the soliton and the halo granules. More massive objects (≳

1
%

M

sol

), while executing a random walk, remain largely confined to the soliton due to dynamical friction. We also present an effective treatment of the diffusion, based on kinetic theory, that accurately reproduces the outward motion of low-mass objects and briefly discuss how the observed displacements of star clusters and active galactic nuclei from the centers of their host galaxies can be used to constrain FDM.
Comment gérer des créatifs ingérables ?
Authors: Mock Elmar 
Published: July 2021

La créativité, c’est la recherche de l’insoupçonnable, c’est partir dans l’inconnu. On ne décide pas d’être inventeur, c’est le résultat d’une action ; c’est plus une histoire d’attitude que d’aptitude. Par ailleurs, l’inventeur n’est jamais seul, il est toujours entouré d’une équipe de créatifs. Depuis quarante ans, Creaholic s’est définie comme « une société de créatifs sans avenir ». Ni le travail ni le salaire ne sont garantis. Tout comme la confiance, l’instabilité est une notion clé dans la création…
Vers une instrumentation capacitante des plateformes numériques. Une étude du cas Airbnb Experience
Authors: Galiere Sophia 
Published: July 2021

L’instrumentation de gestion des plateformes numériques peut-elle être capacitante et concilier la performance avec le développement des travailleurs ? Si oui, quelles en sont les caractéristiques ? Ces questions présentent de nombreux enjeux. En effet, les plateformes numériques de travail ressortent au contraire comme généralement incapacitantes, qu’elles disciplinent les comportements en multipliant les outils de contrôle algorithmique, ou qu’elles engendrent des situations d’anomie en recourant massivement aux mécanismes de coordination du marché. Afin de questionner ces limites et proposer une troisième voie visant à identifier les caractéristiques d’une instrumentation capacitante des plateformes, nous avons mené une étude de cas qualitative de la plateforme Airbnb Experience. Nos résultats mettent en évidence l’importance de la subsidiarité, en interdépendance avec les principes de flexibilité et de transparence interne, comme caractéristique distinctive des outils de gestion ouverts constitutifs des environnements capacitants. Le principe de subsidiarité implique la mise en place d’outils optionnels d’aide et de suppléance, venant contrebalancer les dispositifs de management algorithmique et pallier les risques d’anomie sur les plateformes qui recourent principalement aux mécanismes du marché.
Approche non invasive des peintures murales du prieuré Saint-Jean-l’Évangéliste de Trizay (Charente-Maritime, France)
Authors: Javel Jean-Baptiste , Beauvoit Emmie 
Published: July 2021

Le prieuré Saint-Jean-l’Évangéliste de Trizay (Charente-Maritime) est un monastère saintongeais situé au bord de l’Arnoult. Prieuré appartenant à la Chaise-Dieu, dont les sources sont lacunaires, il fait l’objet d’une étude globale du bâti, de sa construction à son déclin au xviiie siècle. La présente étude porte sur les peintures murales qui sont conservées à différents endroits du monastère : dans le dortoir, le réfectoire et l’abside centrale de l’église. Les peintures du dortoir, les mieux conservées du corpus, sont attribuées au xviie siècle, d’après leur style et certains éléments figurés. Ces peintures sont également rapprochées, presque par défaut, de celles des voûtes du réfectoire représentant le tétramorphe. Cet article se focalise sur ces ensembles à travers une approche non destructive reposant sur plusieurs techniques d’imageries : photographie dans le visible, l’infrarouge et l’ultraviolet ainsi qu’imagerie hyperspectrale (400-1 000 nm). L’objectif est de pouvoir appréhender d’un point de vue technique les décors du prieuré de Trizay, à la fois dans leurs conceptions et leurs procédés de fabrication (matériaux et pigments employés). À travers ces nouvelles données, il devient possible de rediscuter la chronologie de ces ensembles picturaux, tout en les contextualisant dans le bâti et l’histoire du site.
Estimer le diamètre des bois carbonisés à partir de l’observation de la courbure des cernes de croissance des charbons de bois archéologiques : nouvelle contribution méthodologique
Authors: Paradis-Grenouillet Sandrine , Belingard Christelle 
Published: July 2021

Les récents développements de l’anthracologie visent à renseigner les modes de collecte du bois, les pratiques sylvicoles et la physionomie évolutive des peuplements forestiers. Parmi ces développements, l’estimation du diamètre initial des bois carbonisés à partir de l’étude des charbons résiduels occupe une place centrale. Cette approche, initialement fondée sur l’observation de la courbure des cernes, s’appuie aujourd’hui sur la mesure précise du rayon de courbure (aussi appelé distance à la moelle) à l’aide de logiciels d’analyse d’images. Pourtant, force est de constater qu’encore trop peu d’études anthracologiques mobilisent cette approche, en particulier dans le milieu de l’archéologie préventive. Les raisons invoquées sont doubles : les équipements nécessaires (caméra et logiciels d’analyse d’images) ne sont pas encore assez démocratisés et la réalisation des mesures décuple le temps analytique. Cette approche devient donc incompatible avec les contraintes économiques de l’archéologie préventive. Pour dépasser cette limite, cet article propose une adaptation de la méthode qualitative basée sur l’observation de trois classes de courbures des cernes – courbe, intermédiaire, rectiligne – en définissant les valeurs limites des bornes de chacune de ces classes. Cette adaptation repose d’abord sur l’étude systématique des courbures de cernes dans des fenêtres d’observation posées sur une cible parfaite et six sections transversales de brins de taillis vieillis de chêne (Quercus robur L.) et de châtaignier (Castanea sativa Mill.). Cette première étape conduit à l’estimation des rayons de courbure maxima de chaque classe en millimètres. Dans un second temps, les valeurs limites obtenues sont testées sur un corpus anthracologique issu de trois charbonnières expérimentales pour lesquelles le diamètre initial des bois a été mesuré avant la carbonisation. In fine, les valeurs limites des trois classes de courbures sont validées et pourront être mobilisées dans les études anthracologiques ultérieures.
Transposition, scolarisation et culture scolaire : la question de la construction des savoirs scolaires
Authors: Denizot Nathalie 
Published: July 2021

L’article se propose d’explorer à nouveaux frais la question de la construction des savoirs scolaires, initiée dès les années 1980-1990 dans le champ des didactiques disciplinaires par la théorie de la transposition didactique, en élaborant un appareil conceptuel cohérent autour de deux concepts : la scolarisation et la culture scolaire. Il le fera en mettant en perspective la didactique du français avec d’autres didactiques et d’autres disciplines (sociologie de l’éducation, histoire des disciplines…), et en revisitant l’histoire des didactiques (et particulièrement de la didactique du français) et de la construction du champ.
Science didactique et réputation littéraire : le sujet en question
Authors: Vuillet Yann , Védrines Bruno 
Published: July 2021

Notre article, de nature théorique, s’intéresse au triple problème conceptuel du didactique, du littéraire et du sujet. Parce que les référents auxquels renvoient ces trois termes sont pluriels et discutables, nous approchons dans un premier temps la didactique, ses modèles, en tant qu’ils relèvent de l’espace sémantique d’une science sociohistorique. Nous abordons ensuite les implications, pour la didactique du français, de ce triple problème. Ceci nous conduit à argumenter en faveur du développement d’une théorie du « sujet didactique » pour traiter de l’enseignement et de l’apprentissage de « la » littérature. En décrivant des processus d’assujettissement induits par divers types de dispositifs, nous abordons finalement le problème du lien entre le psychisme individuel et les rapports sociaux, et proposons ainsi de réfléchir à la question de l’individualité et de ses formes historiques.
Cadrage, positionnement, niche, des notions pour en didactiser une autre : la « problématisation » dans l’écriture de recherche
Authors: Pollet Marie-Christine , Glorieux Carole 
Published: July 2021

La problématisation et l’élaboration de la problématique sont souvent érigées en règles incontournables de l’écriture de recherche mais aussi en critères d’évaluation des productions étudiantes. Or, ces notions souffrent d’ambigüité sémantique, due notamment à la polysémie des mots issus du mot « problème ». Nous nous pencherons d’abord sur la question des représentations, définitions et caractérisations des notions en question. Nous tenterons ensuite d’éclairer la notion de problématisation, pour la rendre didactiquement opératoire. Nous la déclinerons au prisme d’autres notions telles que cadrage, niche et positionnement, en y associant des caractéristiques linguistiques selon nous observables, explicables et intériorisables pour les étudiants. Enfin, nous proposerons des pistes et analyses d’activités liées à cet objectif de didactisation et articulées à la découverte de la pratique de la recherche dans un champ disciplinaire.
Association of cycle threshold values of CBNAAT with severity and outcome in COVID-19
Authors: Garg Kranti , Sharma Karan , Gupta Aditi , Chopra Vishal 
Published: July 2021

Determination of viral load through cycle threshold (Ct) values may act as a predictor of severity and outcomes in patients with corona virus disease 2019 (COVID-19). However, variable literature is available regarding this relationship. Our study attempted to explore this association and the effect of various socio-demographic and clinical parameters on severity and outcome of COVID-19. Retrospective analysis of records of 731 patients whose nasopharyngeal/ oropharyngeal swabs were subjected to cartridge based nucleic acid amplification (CBNAAT) on Cepheid Xpert Xpress SARS-Cov-2 was done. Cycle threshold (Ct) values of N2 and E genes were studied in relation to severity and outcome of COVID-19. The viral load as determined by Ct values was classified as high (<25), medium (25.1-32) and low (>32). Association of socio-demographic and clinical parameters with respect to severity and outcome was also studied. Severity and mortality were significantly more in elder individuals, those belonging to the rural background, those with symptoms >7 days in duration before presentation and those with increasing number of co-morbidities (Severity: p<0.001, mortality: p <0.001, 0.005, 0.006 and <0.001 respectively). The Ct values of gene N2 and E inversely correlated with severity and mortality from the disease (N2 gene: p=0.001 for both severity and mortality, E gene: severity: p<0.001, mortality: p=0.016 respectively). The severity of the illness and chances of mortality were significantly lesser when the CT value of N2 gene was >32, in comparison when it was upto 25, and when between 25.1 and 32 (severity: p=0.032 and 0.003 respectively, mortality: p=0.018 and <0.001 respectively). Almost similar trends were seen with respect to E gene (severity: p<0.001 and 0.067 respectively, mortality p=0.175 and 0.005 respectively). Viral load as determined by Ct values of N2 and E genes can act as surrogate markers for prediction of severity and disease outcomes in COVID-19.
Comparison of analgesic efficacy of the conventional approach and mid-transverse process to pleura approach of the paravertebral block in video-assisted thoracoscopy surgeries
Authors: Swathi KB , Kamal Manoj , Kumar Mritunjay , Kumar Rakesh , Chhabra Swati , Bhatia Pradeep 
Published: July 2021

Background and Aims:
The paravertebral block (PVB) is an effective alternative to thoracic epidural analgesia for post-operative analgesia in thoracic surgeries. Despite the use of ultrasound in PVB, the search for a safer approach continues. This study was conducted to compare the analgesic efficacy of conventional and mid-transverse process to the pleura (MTP) approach of the PVB.

Methods:
Forty patients aged between 18-60 years, posted for video-assisted thoracoscopic surgery, were enroled for this study. Patients were randomised into two groups using a random number table, and group allocation was done by the sealed opaque envelope method. One group received PVB by conventional approach (group CP). In contrast, patients in the other group (group MP) received PVB by the mid-transverse process to pleura (MTP) approach before induction of general anaesthesia under ultrasound guidance. The study's primary aim was to compare analgesic consumption in the first 24 hours. Secondary aims were comparing the Visual Analogue Scale (VAS) score, block performance time, dermatomal spread, haemodynamic parameters such as heart rate (HR), oxygen saturation (SpO2), and non-invasive blood pressure (NIBP), patient satisfaction scores, and complications observed. Data were analysed using Statistical Package for the Social Sciences version 23.

Results:
Demographic parameters, block performance time, and dermatomal distribution were comparable in both groups. We did not find any statistical difference in the analgesic consumption in the first 24 hours (P = 0.38), VAS at rest or on movement, complication rates, and patient satisfaction scores between the groups.

Conclusion:
The MTP approach of the PVB is as effective as the conventional thoracic paravertebral approach for post-operative analgesia in video-assisted thoracoscopic surgeries.
Amalgamation of quercetin with anastrozole and capecitabine: A novel combination to treat breast and colon cancers – An in vitro study
Authors: Rani Inala Mary Shobha , Pamidimukkala Kiranmayee 
Published: July 2021

ABSTRACT

Context:
Globally, cancer stands as the principle cause of mortality and immediate attention on its treatment options is required. Natural compounds stay at first priority in encountering novel therapeutics without adverse effects.

Aim:
The aim of the study is to extract flavonol quercetin from leafy vegetables of Anethum graveolens L. and Raphanus sativus L. and find out its potential in combination with drugs used for chemotherapy to reduce the adverse effects of drugs.

Settings and Design:
Observational study.

Materials and Methods:
Column chromatography is used for quercetin extraction and anticancer activity of quercetin + anastrozole and quercetin + capecitabine were determined by (4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide assay (MTT), apoptosis assay, cell cycle analysis, mitochondrial membrane potential, and caspase 3 expression.

Statistical Analysis Used:
Cytotoxic assay results were assessed by mean, standard deviation and ANOVA; and results were compared for determining its significance.

Results:
The results noted that quercetin at very less concentration (16 and 31 μg/ml on Michigan Cancer Foundation-7 and 43 and 46 μg/ml on COLO 320) in combination with anastrozole and capecitabine was able to control the growth of cells, increase cell death, arrest cell cycle, and induce mitochondrial depolarization and expression of caspase 3.

Conclusions:
The natural compound used in the present study is effective in treating breast and colon cancer at minimal concentrations in combination with the drugs. This combinational treatment appears to be reported for the first time in the present study.
Emotion Regulation Effect of Baduanjin on College Students
Authors: Gu Qiang , Hu Qing-Chuan , Wei Yu-Long , Chen Kevin , Dong Jing-Jing , Li Shen-Yi , Wang Wei-Wei , Zheng Yi-Bin 
Published: July 2021

Objective:
This study aimed to investigate the emotion regulation effect of Baduanjin Qigong on college students.

Methods:
The late positive potential (LPP) components were recorded while performing emotional pictures from 12 college students with Baduanjin Qigong experience and 12 with no experience of any mind–body exercises.

Results:
Under positive emotional stimuli, greater LPP amplitudes were observed in the experimental group in the frontal, central, and temporal areas than in the control group. Under negative emotional stimuli, greater LPP amplitudes were found in the experimental group in the prefrontal area and smaller amplitudes in the occipital area than in the control group.

Conclusion:
The results reveal the emotion regulation effect on the event-related potential of Baduanjin Qigong to college students. The findings suggest that the regulatory effect of Baduanjin Qigong on emotional stimulation may be a possible reason for reducing the symptoms of depression and anxiety.