bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unraveling the Complex Structure of AGN-driven Outflows. V. Integral-field Spectroscopy of 40 Moderate-luminosity Type-2 AGNs
Authors: Luo Rongxin , Woo Jong-Hak , Karouzos Marios , Bae Hyun-Jin , Shin Jaejin , McConnell Nicholas , Shih Hsin-Yi , Kim Yoo Jung , Park Songyoun 
Published: February 2021

Abstract
There is an ongoing debate on whether feedback from active galactic nuclei (AGNs) can effectively regulate the star formation activities in their host galaxies. To investigate the feedback effect of AGN-driven outflows, we perform integral-field spectroscopic observations of 40 moderate-luminosity (

erg s−1 ) Type-2 AGNs at z < 0.1, which present strong outflow signatures in the integrated [O iii] kinematics. Based on the radial profile of the normalized [O iii] velocity dispersion by stellar velocity dispersion, we measure the kinematic outflow size and extend the kinematic outflow size–luminosity relation reported in Kang & Woo into a wider luminosity range (over four orders of magnitude in [O iii] luminosity). The shallow slope of the kinematic outflow size–luminosity relation indicates that while ionizing photons can reach out further, kinetic energy transfer is much less efficient due to various effects, demonstrating the importance of kinematical analysis in quantifying the outflow size and energetics. By comparing the outflow kinematics with the host galaxy properties, we find that AGNs with strong outflows have higher star formation rate and higher H i gas fraction than those AGNs with weak outflows. These results suggest that the current feedback from AGN-driven outflows do not instantaneously suppress or quench the star formation in the host galaxies while its effect is delayed.
Candidate z ∼ 2.5 Lyman Continuum Sources in the GOODS Fields
Authors: Jones L. H. , Barger A. J. , Cowie L. L. 
Published: February 2021

Abstract
We use the wealth of deep archival optical spectroscopy on the GOODS-South field from Keck, the VLT, and other facilities to select candidate high-redshift Lyman continuum (LyC) leakers in the Hubble Deep UV Legacy Survey (HDUV) data set. We select sources at

, where the HST/WFC3 F275W filter probes only the redshifted LyC. We find five moderately F275W-bright sources (four detected at

significance) in this redshift range. However, two of these show evidence in their optical spectra of contamination by foreground galaxies along the line of sight. We then perform an F275W error-weighted sum of the fluxes of all 129 galaxies at

in both the GOODS-N and GOODS-S HDUV areas to estimate the total ionizing flux. The result is dominated by just five candidate F275W-bright LyC sources. Lastly, we examine the contributions to the metagalactic ionizing background, finding that, at the sensitivity of the HDUV F275W data and allowing for the effects of LyC transmission in the intergalactic medium (IGM), star-forming galaxies can match the UV flux required to maintain an ionized IGM at

.
First Cospatial Comparison of Stellar, Neutral-gas, and Ionized-gas Metallicities in a Metal-rich Galaxy: M83*
Authors: Hernandez Svea , Aloisi Alessandra , James Bethan L. , Kumari Nimisha , Berg Danielle , Adamo Angela , Blair William P. , Faucher-Giguère Claude-André , Fox Andrew J. , Gurvich Alexander B. , Hafen Zachary , Heckman Timothy M. , Lebouteiller Vianney , Long Knox S. , Skillman Evan D. , Tumlinson Jason , Whitmore Bradley C. 
Published: February 2021

Abstract
We carry out a comparative analysis of the metallicities from the stellar, neutral-gas, and ionized-gas components in the metal-rich spiral galaxy M83. We analyze spectroscopic observations taken with the Hubble Space Telescope, the Large Binocular Telescope, and the Very Large Telescope. We detect a clear depletion of the H i gas, as observed from the H i column densities in the nuclear region of this spiral galaxy. We find column densities of log[N(H i) cm−2] < 20.0 at galactocentric distances of <0.18 kpc, in contrast to column densities of log[N(H i) cm−2] ∼ 21.0 in the galactic disk, a trend observed in other nearby spiral galaxies. We measure a metallicity gradient of −0.03 ± 0.01 dex kpc−1 for the ionized gas, comparable to the metallicity gradient of a local benchmark of 49 nearby star-forming galaxies of −0.026 ± 0.002 dex kpc−1. Our cospatial metallicity comparison of the multiphase gas and stellar populations shows excellent agreement outside of the nucleus of the galaxy, hinting at a scenario where the mixing of newly synthesized metals from the most massive stars in the star clusters takes longer than their lifetimes (∼10 Myr). Finally, our work shows that caution must be taken when studying the metallicity gradient of the neutral-gas component in star-forming galaxies, since this can be strongly biased, as these environments can be dominated by molecular gas. In these regions the typical metallicity tracers can provide inaccurate abundances, as they may trace both the neutral- and molecular-gas components.
Damping of Slow Surface Kink Modes in Solar Photospheric Waveguides Modeled by One-dimensional Inhomogeneities
Authors: Chen Shao-Xia , Li Bo , Doorsselaere Tom Van , Goossens Marcel , Yu Hui , Geeraerts Michaël 
Published: February 2021

Abstract
Given the recent interest in magnetohydrodynamic (MHD) waves in pores and sunspot umbrae, we examine the damping of slow surface kink modes (SSKMs) by modeling solar photospheric waveguides with a cylindrical inhomogeneity comprising a uniform interior, a uniform exterior, and a continuous transition layer (TL) in between. Performing an eigenmode analysis in linear, resistive, gravity-free MHD, our approach is idealized in that, among other things, our equilibrium is structured only in the radial direction. We can nonetheless address two damping mechanisms simultaneously, one being the ohmic resistivity and the other being the resonant absorption of SSKMs in the cusp and Alfvén continua. We find that the relative importance of the two mechanisms depends sensitively on the magnetic Reynolds number (R
m). Resonant absorption is the sole damping mechanism for realistically large values of R
m, and the cusp resonance in general dominates the Alfvén one unless the axial wavenumbers are at the lower end of the observationally relevant range. We also find that the thin-boundary approximation holds only when the TL-width-to-radius ratios are much smaller than nominally expected. The ohmic resistivity is far more important for realistically small R
m. Even in this case, SSKMs are only marginally damped, with damping-time-to-period ratios reaching ∼10 in the parameter range we examine.
Compact Molecular Gas Distribution in Quasar Host Galaxies
Authors: Molina Juan , Wang Ran , Shangguan Jinyi , Ho Luis C. , Bauer Franz E. , Treister Ezequiel , Shao Yali 
Published: February 2021

Abstract
We use Atacama Large Millimeter/submillimeter Array CO (2–1) observations of six low-redshift Palomar-Green quasars to study the distribution and kinematics of the molecular gas of their host galaxies at kiloparsec-scale resolution. While the molecular gas content, molecular gas fraction, and star formation rates are similar to those of nearby massive, star-forming galaxies, the quasar host galaxies possess exceptionally compact, disky molecular gas distributions with a median half-light radius of 1.8 kpc and molecular gas mass surface densities ≳22 M
⊙ pc−2. While the overall velocity field of the molecular gas is dominated by regular rotation out to large radii, with ratio of rotation velocity to velocity dispersion ≳9, the nuclear region displays substantial kinematic complexity associated with small-scale substructure in the gas distribution. A tilted-ring analysis reveals that the kinematic and photometric position angles are misaligned on average by ∼ 34° ± 26° and provides evidence of kinematic twisting. These observations provide tantalizing clues to the detailed physical conditions of the circumnuclear environments of actively accreting supermassive black holes.
PSR J1810+1744: Companion Darkening and a Precise High Neutron Star Mass
Authors: Romani Roger W. , Kandel D. , Filippenko Alexei V. , Brink Thomas G. , Zheng WeiKang 
Published: February 2021

Abstract
Keck-telescope spectrophotometry of the companion of PSR J1810+1744 shows a flat, but asymmetric light-curve maximum and a deep, narrow minimum. The maximum indicates strong gravity darkening (GD) near the L
1 point, along with a heated pole and surface winds. The minimum indicates a low underlying temperature and substantial limb darkening. The GD is a consequence of extreme pulsar heating and the near-filling of the Roche lobe. Light-curve modeling gives a binary inclination i = 65.°7 ± 0.°4. With the Keck-measured radial-velocity amplitude K
c = 462.3 ± 2.2 km s−1, this gives an accurate neutron star mass M
NS = 2.13 ± 0.04 M
⊙, with important implications for the dense-matter equation of state. A classic direct-heating model, ignoring the L
1 gravitational darkening, would predict an unphysical M
NS > 3 M
⊙. A few other “spider” pulsar binaries have similar large heating and fill factor; thus, they should be checked for such effects.
Hemispheric Tectonics on Super-Earth LHS 3844b
Authors: Meier Tobias G. , Bower Dan J. , Lichtenberg Tim , Tackley Paul J. , Demory Brice-Olivier 
Published: February 2021

Abstract
The tectonic regime of rocky planets fundamentally influences their long-term evolution and cycling of volatiles between interior and atmosphere. Earth is the only known planet with active plate tectonics, but observations of exoplanets may deliver insights into the diversity of tectonic regimes beyond the solar system. Observations of the thermal phase curve of super-Earth LHS 3844b reveal a solid surface and lack of a substantial atmosphere, with a temperature contrast between the substellar and antistellar point of around 1000 K. Here, we use these constraints on the planet’s surface to constrain the interior dynamics and tectonic regimes of LHS 3844b using numerical models of interior flow. We investigate the style of interior convection by assessing how upwellings and downwellings are organized and how tectonic regimes manifest. We discover three viable convective regimes with a mobile surface: (1) spatially uniform distribution of upwellings and downwellings, (2) prominent downwelling on the dayside and upwellings on the nightside, and (3) prominent downwelling on the nightside and upwellings on the dayside. Hemispheric tectonics is observed for regimes (2) and (3) as a direct consequence of the day-to-night temperature contrast. Such a tectonic mode is absent in the present-day solar system and has never been inferred from astrophysical observations of exoplanets. Our models offer distinct predictions for volcanism and outgassing linked to the tectonic regime, which may explain secondary features in phase curves and allow future observations to constrain the diversity of super-Earth interiors.
Evolution of Subsurface Zonal and Meridional Flows in Solar Cycle 24 from Helioseismological Data
Authors: Getling Alexander V. , Kosovichev Alexander G. , Zhao Junwei 
Published: February 2021

Abstract
The results of determinations of the azimuthal and meridional velocities by time–distance helioseismology from Helioseismic and Magnetic Imager on board Solar Dynamics Observatory from 2010 May to 2020 September at latitudes and Stonyhurst longitudes from − 60° to + 60° and depths to about 19 Mm below the photosphere are used to analyze spatiotemporal variations of the solar differential rotation and meridional circulation. The pattern of torsional oscillations, or latitudinal belts of alternating “fast” and “slow” zonal flows migrating from high latitudes toward the equator, is found to extend in the time–latitude diagrams over the whole time interval. The oscillation period is comparable with a doubled solar-activity-cycle and can be described as an extended solar cycle. The zonal-velocity variations are related to the solar-activity level, the local-velocity increases corresponding to the sunspot-number increases and being localized at latitudes where the strongest magnetic fields are recorded. The dramatic growth of the zonal velocities in 2018 appears to be a precursor of the beginning of Solar Cycle 25. The strong symmetrization of the zonal-velocity field by 2020 can be considered another precursor. The general pattern of poleward meridional flows is modulated by latitudinal variations similar to the extended-solar-cycle behavior of the zonal flows. During the activity maximum, these variations are superposed with a higher harmonic corresponding to meridional flows converging to the spot-formation latitudes. Our results indicate that variations of both the zonal and meridional flows exhibit the extended-solar-cycle behavior, which is an intrinsic feature of the solar dynamo.
Constraints on Sub-Neptune Planet Candidate KOI-972.01 via Joint Variability/Gravity-darkening Analysis
Authors: Myers Samuel A. , Barnes Jason W. , Ahlers John P. 
Published: February 2021

Abstract
We analyze Kepler photometry of transiting planet candidate KOI-972.01, accounting for both stellar variability and gravity darkening. KOI-972.01 stands out because of its small radius, less than that of Neptune, and because of its intermediate orbit period at 13.12 days, long enough to avoid significant tidal evolution, and thus it represents an underexplored exoplanet class. The parent star of KOI-972.01 is a rapidly rotating δ-Scuti variable, complicating transit lightcurve interpretation but also offering a potential independent source of stellar parameters. We measure the stellar rotation period (16.2 hr) by identifying the stellar rotation frequency and subsequently place a constraint on the stellar obliquity of no greater than 10, but have difficulty isolating individual oscillation modes in the periodogram owing to time variation of the δ-Scuti oscillations. After subtracting the stellar oscillations, lightcurve fits place the transiting object radius at 3.07 ± 0.09 R
⊕, but the shallow transit prevents useful constraints on the system’s spin–orbit alignment.
New record of the lace bug species Acalypta marginata (Wolff) (Hemiptera: Heteroptera: Tingidae) from Japan
Authors: Souma Jun 
Published: February 2021

The lace bug species Acalypta marginata (Wolff, 1804) has, to date, been widely known to occur in the Palaearctic Region, but has not been recorded from Japan.
Acalypta marginata is recorded from Japan for the first time. Its habitat in Japan is the grassland of Hokkaido. A key to the species of Acalypta occurring in Japan is provided.
The Effect of Simulation-Enhanced Orientation on Graduate Nurses: An Integrative Review
Authors: Pogue Debbra T. , O'Keefe Mary 
Published: February 2021

The purpose of this review is to examine the state of science of simulation-enhanced orientation and its effect on graduate nurses (GNs).

Background:
GNs are essential to the alleviation of staffing deficits, mitigation of patient safety events, and provision of clinically adept care. Successful transition from academia to clinical practice is often influenced by factors that compromise retention, increase attrition, and impair professional development.

Method:
The method used was an integrative literature review.

Results:
There is a paucity of research in the literature regarding the effect of simulation-enhanced orientation on clinical competency, confidence outcomes, and other benchmarks of professional development that may influence retention or attrition.

Conclusion:

This integrative review confirmed the paucity of research of qualitative and quantitative outcomes of simulation-enhanced orientation on GNs. Stakeholders of organizational and educational institutions may find this review valuable, as it highlights the necessity for additional research.

[
J Contin Educ Nurs
. 2021;52(3):150–156.]
Radical Excision and Reconstruction of Chronic Tibial Osteomyelitis With Microvascular Muscle Flaps
Authors: Kuokkanen Hannu O M , Tukiainen Erkki J , Asko-Seljavaara Sirpa 
Published: February 2021

Abstract
We report a series of 21 patients with chronic osteomyelitis of the tibia treated with microvascular muscle flap reconstruction. All patients underwent a radical bone and soft-tissue excision until healthy, well-bleeding tissue was exposed. Six patients required cancellous bone grafting. Latissimus dorsi was used in 14 patients, gracilis in A1 and rectus abdominis in 4. One gracilis flap was lost due to vessel thrombosis and was replaced with a rectus abdominis free flap.
Average follow-up was 2.5 years. There was no evidence of clinical infection in 20 patients at follow-up; the bone had healed, the soft-tissue cover was stable, and the laboratory parameters were normal. Bone infection recurred in 1 patient, resulting in a below-knee amputation.
The radical excision of infected bone and affected soft tissue and reconstruction with a well-vascularized large freemuscle flap is an excellent solution in most difficult chronically infected cases.
Chemotherapy for osteosarcoma
Authors: Chen Tien-Hua , Hung Giun-Yi , Yen Chueh-Chuan 
Published: February 2021

Objective:
This article reviews the current standard of care for osteosarcoma and the experience of Taipei Veterans General Hospital.

Data Sources and Study Selection:
We searched PubMed using the keyword “osteosarcoma” and article type “Clinical Trial.” Prospective, randomized, Phase II/III clinical trials which resulted in practice change were enrolled. In addition, retrospective studies from Taipei Veterans General Hospital were also included.

Results:
For localized conventional osteosarcoma, combined perioperative chemotherapy with surgical resection dramatically improved long-term outcomes. Combination chemotherapy with methotrexate, Adriamycin, and cisplatin (MAP) is currently widely accepted to be the optimal regimen. The efficacy of chemotherapy has increased the likelihood of a limb-salvage approach, which has become the mainstay of surgery. In Taipei Veterans General Hospital, MAP plus ifosfamide was used and could achieve a 5-year overall survival (OS) rate of 77% and progression-free survival (PFS) rate of 70% for all patients. For nonmetastatic osteosarcoma, the 5-year OS and PFS rates reached 90% and 83%, respectively. For recurrent/metastatic disease, there is currently no satisfactory systemic therapy. Removal of all tumors should be attempted if clinically feasible, because one-third of patients may survive for 5 years or more if the tumors are completely resected.

Conclusion:
Perioperative chemotherapy is associated with excellent OS, PFS, and limb salvage rates and is the current standard of care for osteosarcoma.
VALORISATION DE DECHETS PLASTIQUES ET D'INDUSTRIE DU BOIS EN COMPOSITE MOULE A FROID : EFFET DES PARAMETRES DE FABRICATION SUR LES PROPRIETES MECANIQUES
Authors: Amadji Togbé Armel , Jean Gerard , Codjo Adjovi , Daniel Guibal , Kouandété Valéry Doko 
Published: February 2021

This work concerns the field of recycling of waste intobuilding materials. It reports on the possibility ofrecovering plastic waste and related products fromthe wood industry, in construction. The objective ofthe study is to give added value to wood-plasticcomposites produced using the cold compressionmolding process, by improving their mechanicalproperties. Through the bending test, the influence oftwo manufacturing parameters - compactionpressure and drying temperature after molding - onthe mechanical properties, was evaluated for the caseof a composite based on tropical wood sawdustcoming from Benin and recycled polystyrene (CBPo).It appears that the compaction pressure and thedrying temperature are essential factors to considerwhen evaluating the mechanical performance of thecomposite. Increasing the compaction pressure to alimit value significantly improves the properties of thematerial. The optimal properties of CBPo wereobtained at a pressure of 7 MPa. Post-forming dryingat 100 ° C also significantly improved the performanceof the composite. In addition, thanks to its enhancednew mechanical properties, the CBPo is repositionedrelatively to other existing materials, thus making itpossible to think about new applications inconstruction.
Ce travail concerne le domaine du recyclage dedéchets en matériaux. Il rend compte d’unepossibilité de valorisation de déchets plastiques et deproduits connexes de l’industrie du bois dans laconstruction. L’étude vise à donner une valeurajoutée à un composite bois-plastique élaborésuivant un procédé de moulage par compression àfroid, par l’amélioration de ses propriétésmécaniques. A travers un essai de flexion, l’influencede deux paramètres de fabrication - pression decompactage et température de séchage postmoulage- sur les propriétés mécaniques, a étéévaluée dans le cas d’un composite à base de sciuresde bois tropicaux venant du Bénin et de polystyrène(CBPo) recyclés. Il en ressort que la pression decompactage et la température de séchage, sont deuxfacteurs essentiels à considérer lors de l’évaluationdes performances mécaniques du composite.L’augmentation de la pression de compactage jusqu’àune valeur limite améliore significativement lespropriétés du matériau. Les propriétés optimales duCBPo ont été obtenues à la pression de 7 MPa. Leséchage post-moulage à 100°C, a également amélioréde façon significative les performances du composite.Aussi, par ses nouvelles performances mécaniques, leCBPo se repositionne par rapport à d’autresmatériaux existants permettant ainsi d’en envisagerde nouvelles applications dans la construction.
The The Effect Of Profitability, Size And Liquidity on Firm Value in Consumer Goods Industry Listed on The Indonesia Stock Exchange (IDX)
Authors: Kurnia Saputri Candra , Giovanni Axel 
Published: February 2021

This research was conducted with the aim of knowing the effect between profitability, size and liquidity on firm value in consumer goods industry sector companies listed on the Indonesia Stock Exchange (IDX) from 2014 to 2018. This research was conducted because there are still differences in research results and there is fluctuation in the value of the company in the consumer goods industry sector companies listed on the Indonesia Stock Exchange. The population used in this study were companies in the consumer goods industry listed on the IDX in the 2014 - 2018 period. While the sample used in this study were 37 companies in the consumer goods industry sector which were selected using the purposive sampling method. The data analysis technique used is multiple regression analysis in order to determine the relationship between variables. The results of this study indicate that profitability, size and liquidity simultaneously have an influence on firm value. Partially profitability has a positive and significant effect on firm value, size has no effect on firm value and liquidity has a negative and significant effect on firm value.
Analisis Pertumbuhan Gereja Mula-mula Dalam Kisah Para Rasul dan Relevansinya Bagi Gereja Masa Kini
Authors: Siagian Rustam 
Published: February 2021

Pembahasan tentang pertumbuhan gereja selalu menjadi perhatian para pemimpin gereja dimana saja. Berbagai teori dipelajari dengan harapan bisa diterapkan di dalam gereja masing-masing agar pertumbuhan bisa tercapai secara maksimal. Tetapi sesungguhnya dasar pertumbuhan gereja sudah disampaikan kepada gereja dalam kitab Kisah Para Rasul, karena itu tulisan ini akan menelusuri prinsip-prinsip pertumbuhan gereja dari kitab Kisah Para Rasul dan dengan harapan prinsip-prinsip itu menjadi masukan bagi gereja masa kini.

Discussions about church growth always come to the attention of church leaders everywhere. Various theories are learned with the hope that they can be applied in their respective churches so that growth can be achieved to the maximum. But actually the basis for the growth of the church has been conveyed to the church in the book of Acts, therefore this paper will explore the principles of church growth from the book of Acts and hopefully these principles will be input for the church today.