bluuebunny/crossref_metadata_2025_split huggingface dataset:
An ASKAP survey for H i absorption towards dust-obscured quasars
Authors: Glowacki M , Allison J R , Moss V A , Mahony E K , Sadler E M , Callingham J R , Ellison S L , Whiting M T , Bunton J D , Chippendale A P , Heywood I , McConnell D , Raja W , Voronkov M A 
Published: September 2019

ABSTRACT
Obscuration of quasars by accreted gas and dust, or dusty intervening galaxies, can cause active galactic nuclei (AGN) to be missed in optically selected surveys. Radio observations can overcome this dust bias. In particular, radio surveys searching for H i absorption inform us on how the AGN can impact on the cold neutral gas medium within the host galaxy, or the population of intervening galaxies through the observed line of sight gas kinematics. We present the results of an H i absorption line survey at 0.4 &lt; z &lt; 1 towards 34 obscured quasars with the Australian SKA Pathfinder (ASKAP) commissioning array. We detect three H i absorption lines, with one of these systems previously unknown. Through optical follow-up for two sources, we find that in all detections the H i gas is associated with the AGN, and hence that these AGN are obscured by material within their host galaxies. Most of our sample are compact, and in addition, are either gigahertz peaked spectrum (GPS), or steep spectrum (CSS) sources, both thought to represent young or recently re-triggered radio AGN. The radio spectral energy distribution classifications for our sample agree with galaxy evolution models in which the obscured AGN has only recently become active. Our associated H i detection rate for GPS and compact SS sources matches those of other surveys towards such sources. We also find shallow and asymmetric H i absorption features, which agrees with previous findings that the cold neutral medium in compact radio galaxies is typically kinematically disturbed by the AGN.
A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 – II. Gas excitation and kinematics
Authors: Dahmer-Hahn L G , Riffel R , Ricci T V , Steiner J E , Storchi-Bergmann T , Riffel R A , Menezes R B , Dametto N Z , Diniz M R , Motter J C , Ruschel-Dutra D 
Published: September 2019

ABSTRACT
We map the optical and near-infrared (NIR) emission-line flux distributions and kinematics of the inner 320 × 535 pc2 of the elliptical galaxy NGC 1052. The integral field spectra were obtained with the Gemini Telescope using the GMOS-IFU and NIFS instruments, with angular resolutions of 0.88 and 0.1 arcsec in the optical and NIR, respectively. We detect five kinematic components: (1) and (2) two spatially unresolved components: a broad-line region visible in H α, with a full width at half-maximum (FWHM) of ∼3200 km s−1, and an intermediate broad component seen in the [O iii] λλ4959,5007 doublet; (3) an extended intermediate-width component with 280 km s−1 < FWHM < 450 km s−1 and centroid velocities up to 400 km s−1, which dominates the flux in our data, attributed either to a bipolar outflow related to the jets, rotation in an eccentric disc or to a combination of a disc and large-scale gas bubbles; (4) and (5) two narrow (FWHM < 150 km s−1) components, one visible in [O iii], and another visible in the other emission lines, extending beyond the field of view of our data, which is attributed to large-scale shocks. Our results suggest that the ionization within the observed field of view cannot be explained by a single mechanism, with photoionization being the dominant mechanism in the nucleus with a combination of shocks and photoionization responsible for the extended ionization.
Dark and luminous satellites of LMC-mass galaxies in the FIRE simulations
Authors: Jahn Ethan D , Sales Laura V , Wetzel Andrew , Boylan-Kolchin Michael , Chan T K , El-Badry Kareem , Lazar Alexandres , Bullock James S 
Published: September 2019

ABSTRACT
Within lambda cold dark matter ($\Lambda$CDM), dwarf galaxies like the Large Magellanic Cloud (LMC) are expected to host numerous dark matter subhaloes, several of which should host faint dwarf companions. Recent Gaia proper motions confirm new members of the LMC system in addition to the previously known SMC, including two classical dwarf galaxies ($M_\ast$$\gt 10^5$ M$_{\odot }$; Carina and Fornax) as well as several ultrafaint dwarfs (Car2, Car3, Hor1, and Hyd1). We use the Feedback In Realistic Environments (FIRE) simulations to study the dark and luminous (down to ultrafaint masses, $M_\ast$$\sim$6$\times 10^ {3}$ M$_{\odot }$) substructure population of isolated LMC-mass hosts ($M_{\text{200m}}$ = 1–3$\times 10^ {11}$ M$_{\odot }$) and place the Gaia + DES results in a cosmological context. By comparing number counts of subhaloes in simulations with and without baryons, we find that, within 0.2 $r_{\text{200m}}$, LMC-mass hosts deplete $\sim$30 per cent of their substructure, significantly lower than the $\sim$70 per cent of substructure depleted by Milky Way (MW) mass hosts. For our highest resolution runs ($m_\text{bary}$ = 880 M$_{\odot }$), $\sim 5\!-\!10$ subhaloes form galaxies with $M_\ast$$\ge 10^{4}$ M$_{\odot }$ , in agreement with the seven observationally inferred pre-infall LMC companions. However, we find steeper simulated luminosity functions than observed, hinting at observation incompleteness at the faint end. The predicted DM content for classical satellites in FIRE agrees with observed estimates for Carina and Fornax, supporting the case for an LMC association. We predict that tidal stripping within the LMC potential lowers the inner dark matter density of ultrafaint companions of the LMC. Thus, in addition to their orbital consistency, the low densities of dwarfs Car2, Hyd1, and Hyd2 reinforce their likelihood of Magellanic association.
An extreme amplitude, massive heartbeat system in the LMC characterized using ASAS-SN and TESS
Authors: Jayasinghe T , Stanek K Z , Kochanek C S , Thompson Todd A , Shappee B J , Fausnaugh M 
Published: September 2019

ABSTRACT
Using ASAS-SN data, we find that the bright ($V\sim 13.5$ mag) variable star MACHO 80.7443.1718 (ASASSN-V J052624.38–684705.6) is the most extreme heartbeat star yet discovered. This massive binary, consisting of at least one early B-type star, has an orbital period of $P_{\rm ASAS-SN}=32.83627\pm 0.00846\, {\rm d},$ and is located towards the LH58 OB complex in the LMC. Both the ASAS-SN and TESS light curves show extreme brightness variations of ${\sim }40{{\ \rm per\ cent}}$ at periastron and variations of $ \sim 10{{\ \rm per\ cent}}$ due to tidally excited oscillations outside periastron. We fit an analytical model of the variability caused by the tidal distortions at pericentre to find orbital parameters of $\omega =-61.4^\circ$, $i=44.8^\circ$, and $e=0.566$. We also present a frequency analysis to identify the pulsation frequencies corresponding to the tidally excited oscillations.
A comparison between the two lobes of comet 67P/Churyumov–Gerasimenko based on D/H ratios in H2O measured with the Rosetta/ROSINA DFMS
Authors: Schroeder Isaac R H G , Altwegg Kathrin , Balsiger Hans , Berthelier Jean-Jacques , Combi Michael R , De Keyser Johan , Fiethe Björn , Fuselier Stephen A , Gombosi Tamas I , Hansen Kenneth C , Rubin Martin , Shou Yinsi , Tenishev Valeriy M , Sémon Thierry , Wampfler Susanne F , Wurz Peter 
Published: September 2019

ABSTRACT
The nucleus of the Jupiter-family comet 67P/Churyumov–Gerasimenko was discovered to be bi-lobate in shape when the European Space Agency spacecraft Rosetta first approached it in 2014 July. The bi-lobate structure of the cometary nucleus has led to much discussion regarding the possible manner of its formation and on how the composition of each lobe might compare with that of the other. During its two-year-long mission from 2014 to 2016, Rosetta remained in close proximity to 67P/Churyumov–Gerasimenko, studying its coma and nucleus in situ. Based on lobe-specific measurements of HDO and H2O performed with the ROSINA Double Focusing Mass Spectrometer (DFMS) on board Rosetta, the deuterium-to-hydrogen (D/H) ratios in water from the two lobes can be compared. No appreciable difference was observed, suggesting that both lobes formed in the same region and are homogeneous in their D/H ratios.
TYC 8606-2025-1: a mild barium star surrounded by the ejecta of a very late thermal pulse
Authors: Gvaramadze V V , Pakhomov Yu V , Kniazev A Y , Ryabchikova T A , Langer N , Fossati L , Grebel E K 
Published: September 2019

ABSTRACT
We report the discovery of a spiral-like nebula with the Wide-field Infrared Survey Explorer and the results of optical spectroscopy of its associated star TYC 8606-2025-1 with the Southern African Large Telescope. We find that TYC 8606-2025-1 is a G8 III star of $\approx 3 \, \rm \, M_{\odot }$, showing a carbon depletion by a factor of 2 and a nitrogen enhancement by a factor of 3. We also derived an excess of s-process elements, most strongly for barium, which is a factor of 3 overabundant, indicating that TYC 8606-2025-1 is a mild barium star. We thereby add a new member to the small group of barium stars with circumstellar nebulae. Our radial velocity measurements indicate that TYC 8606-2025-1 has an unseen binary companion. The advanced evolutionary stage of TYC 8606-2025-1, together with the presence of a circumstellar nebula, implies an initial mass of the companion of also about $3 \, \rm \, M_{\odot }$. We conclude that the infrared nebula, due to its spiral shape, and because it has no optical counterpart, was ejected by the companion as a consequence of a very late thermal pulse, during about one orbital rotation.
horizon-AGN virtual observatory – 2. Template-free estimates of galaxy properties from colours
Authors: Davidzon I , Laigle C , Capak P L , Ilbert O , Masters D C , Hemmati S , Apostolakos N , Coupon J , de la Torre S , Devriendt J , Dubois Y , Kashino D , Paltani S , Pichon C 
Published: September 2019

ABSTRACT
Using the horizon-AGN hydrodynamical simulation and self-organizing maps (SOMs), we show how to compress the complex, high-dimensional data structure of a simulation into a 2D grid, which greatly facilitates the analysis of how galaxy observables are connected to intrinsic properties. We first verify the tight correlation between the observed 0.3–5 μm broad-band colours of horizon-AGN galaxies and their high-resolution spectra. The correlation is found to extend to physical properties such as redshift, stellar mass, and star formation rate (SFR). This direct mapping from colour to physical parameter space still works after including photometric uncertainties that mimic the COSMOS survey. We then label the SOM grid with a simulated calibration sample to estimate redshift and SFR for COSMOS-like galaxies up to z ∼ 3. In comparison to state-of-the-art techniques based on synthetic templates, our method is comparable in performance but less biased at estimating redshifts, and significantly better at predicting SFRs. In particular, our ‘data-driven’ approach, in contrast to model libraries, intrinsically allows for the complexity of galaxy formation and can handle sample biases. We advocate that observations to calibrate this method should be one of the goals of next-generation galaxy surveys.
Catalogues of active galactic nuclei from Gaia and unWISE data
Authors: Shu Yiping , Koposov Sergey E , Evans N Wyn , Belokurov Vasily , McMahon Richard G , Auger Matthew W , Lemon Cameron A 
Published: September 2019

ABSTRACT
We present two catalogues of active galactic nucleus (AGN) candidates selected from the latest data of two all-sky surveys – Data Release 2 of the Gaia mission and the unWISE catalogue of the Wide-field Infrared Survey Explorer (WISE). We train a random forest classifier to predict the probability of each source in the Gaia–unWISE joint sample being an AGN, PRF, based on Gaia astrometric and photometric measurements and unWISE photometry. The two catalogues, which we designate C75 and R85, are constructed by applying different PRF threshold cuts to achieve an overall completeness of 75 per cent (≈90 per cent at GaiaG ≤ 20 mag) and reliability of 85 per cent, respectively. The C75 (R85) catalogue contains 2734 464 (2182 193) AGN candidates across the effective 36 000 deg2 sky, of which ≈0.91 (0.52) million are new discoveries. Photometric redshifts of the AGN candidates are derived by a random forest regressor using Gaia and WISE magnitudes and colours. The estimated overall photometric redshift accuracy is 0.11. Cross-matching the AGN candidates with a sample of known bright cluster galaxies, we identify a high-probability strongly lensed AGN candidate system, SDSS J1326+4806, with a large image separation of 21${^{\prime\prime}_{.}}$06. All the AGN candidates in our catalogues will have ∼5-yr long light curves from Gaia by the end of the mission, and thus will be a great resource for AGN variability studies. Our AGN catalogues will also be helpful in AGN target selections for future spectroscopic surveys, especially those in the Southern hemisphere. The C75 catalogue can be downloaded at https://www.ast.cam.ac.uk/~ypshu/AGN_Catalogues.html.
Evolutionary History of GLIS Genes Illuminates Their Roles in Cell Reprograming and Ciliogenesis
Authors: Yasuoka Yuuri , Matsumoto Masahito , Yagi Ken , Okazaki Yasushi 
Published: September 2019

Abstract
The GLIS family transcription factors, GLIS1 and GLIS3, potentiate generation of induced pluripotent stem cells (iPSCs). In contrast, another GLIS family member, GLIS2, suppresses cell reprograming. To understand how these disparate roles arose, we examined evolutionary origins and genomic organization of GLIS genes. Comprehensive phylogenetic analysis shows that GLIS1 and GLIS3 originated during vertebrate whole genome duplication, whereas GLIS2 is a sister group to the GLIS1/3 and GLI families. This result is consistent with their opposing functions in cell reprograming. Glis1 evolved faster than Glis3, losing many protein-interacting motifs. This suggests that Glis1 acquired new functions under weakened evolutionary constraints. In fact, GLIS1 induces induced pluripotent stem cells more strongly. Transcriptomic data from various animal embryos demonstrate that glis1 is maternally expressed in some tetrapods, whereas vertebrate glis3 and invertebrate glis1/3 genes are rarely expressed in oocytes, suggesting that vertebrate (or tetrapod) Glis1 acquired a new expression domain and function as a maternal factor. Furthermore, comparative genomic analysis reveals that glis1/3 is part of a bilaterian-specific gene cluster, together with rfx3, ndc1, hspb11, and lrrc42. Because known functions of these genes are related to cilia formation and function, the last common ancestor of bilaterians may have acquired this cluster by shuffling gene order to establish more sophisticated epithelial tissues involving cilia. This evolutionary study highlights the significance of GLIS1/3 for cell reprograming, development, and diseases in ciliated organs such as lung, kidney, and pancreas.
CSB interacts with BRCA1 in late S/G2 to promote MRN- and CtIP-mediated DNA end resection
Authors: Batenburg Nicole L , Walker John R , Coulombe Yan , Sherker Alana , Masson Jean-Yves , Zhu Xu-Dong 
Published: September 2019

Abstract
CSB, a member of the SWI2/SNF2 superfamily, has been implicated in evicting histones to promote the DSB pathway choice towards homologous recombination (HR) repair. However, how CSB promotes HR repair remains poorly characterized. Here we demonstrate that CSB interacts with both MRE11/RAD50/NBS1 (MRN) and BRCA1 in a cell cycle regulated manner, with the former requiring its WHD and occurring predominantly in early S phase. CSB interacts with the BRCT domain of BRCA1 and this interaction is regulated by CDK-dependent phosphorylation of CSB on S1276. The CSB–BRCA1 interaction, which peaks in late S/G2 phase, is responsible for mediating the interaction of CSB with the BRCA1-C complex consisting of BRCA1, MRN and CtIP. While dispensable for histone eviction at DSBs, CSB phosphorylation on S1276 is necessary to promote efficient MRN- and CtIP-mediated DNA end resection, thereby restricting NHEJ and enforcing the DSB repair pathway choice to HR. CSB phosphorylation on S1276 is also necessary to support cell survival in response to DNA damage-inducing agents. These results altogether suggest that CSB interacts with BRCA1 to promote DNA end resection for HR repair and that although prerequisite, CSB-mediated histone eviction alone is insufficient to promote the pathway choice towards HR.
Phosphate and bone fracture risk in chronic kidney disease patients
Authors: Fusaro Maria , Holden Rachel , Lok Charmaine , Iervasi Giorgio , Plebani Mario , Aghi Andrea , Gallieni Maurizio , Cozzolino Mario 
Published: September 2019

AbstractIn chronic kidney disease (CKD), phosphate homoeostasis plays a central role in the development of mineral and bone disorder (MBD) together with decreased serum calcium and elevated serum parathyroid hormone, fibroblast growth factor 23 and sclerostin levels. Today there are only a few data exploring the direct role of abnormal phosphate homoeostasis and hyperphosphataemia in the development of CKD-MBD. On the other hand, several studies have looked at the link between hyperphosphataemia and cardiovascular morbidity and mortality in CKD, but there is a lack of evidence to indicate that lowering phosphate levels improves cardiovascular outcomes in this population. Furthermore, the impact of liberalizing phosphate targets on CKD-MBD progression and bone fracture is currently not known. In this review we discuss the central role of phosphate in the pathogenesis of CKD-MBD and how it may be associated with fracture risk, both in hyper- and hypophosphataemia.
Association of Tobacco Use and Exposure to Secondhand Smoke With Suicide Attempts Among Adolescents: Findings From 33 Countries
Authors: Lange Shannon , Koyanagi Ai , Rehm Jürgen , Roerecke Michael , Carvalho André F 
Published: September 2019

Abstract

Introduction
There is evidence to suggest that tobacco use is associated with suicide attempts. However, it is unclear whether such an association can be extended to include secondhand smoke exposure. Using nationally representative data of school-attending adolescents from 33 countries, we examined the association of tobacco use and exposure to secondhand smoke with suicide attempts.

Methods
We used data from the Global School–based Student Health Survey, a cross-sectional survey conducted among adolescents 12–15 years of age. We used logistic regression to estimate the country-specific associations. We then conducted random effect meta-analyses to obtain overall and country-income level pooled estimates. Lastly, we used logistic regression analyses to investigate a dose–response association of cigarette smoking and exposure to secondhand smoke with suicide attempts.

Results
A positive association between tobacco use and suicide attempts among adolescents was present regardless of country-income level (low income: odds ratio 4.98, 95% CI: 3.11–7.96; lower middle income: 3.47, 2.91–4.15; upper middle income: 3.09, 2.75–3.47; and high income: 3.18, 2.63–3.84) and gender (boys: 3.28, 2.86–3.76; girls: 3.86, 3.30–4.51). Exposure to secondhand smoke was associated with suicide attempts, albeit weakly, among girls only (1.26, 1.14–1.39; boys: 1.00, 0.87–1.15). There was some evidence that a dose–response association of cigarette smoking and exposure to secondhand smoke with suicide attempts may only exist among girls.

Conclusions
Adolescents who use tobacco, and adolescent girls exposed to secondhand smoke were found to be more likely to attempt suicide; however, future longitudinal studies are warranted to assess causality.

Implications
Our findings indicate that routine screening of adolescents for tobacco use should be implemented globally, especially when assessing suicidal behaviors and risk. Future longitudinal and intervention studies are warranted to assess causality and whether prevention efforts such as tobacco control interventions and programmes targeting tobacco use and exposure to secondhand smoke among adolescents could ultimately lead to a reduction in the occurrence of suicide attempts.
The Invention of Dryden as Satirist
Authors: Augustine Matthew C. 
Published: September 2019

Abstract
John Dryden has long been central to accounts of eighteenth-century satire. This chapter asks how such accounts have come to be written, and whether there may be new ways of mapping this aspect of the poet, critic, translator, and controversialist. Indeed, one of the chapter’s aims is to question the inevitability of Dryden’s acquiring a reputation as a satirist, both in his own time and in the centuries following. Though we associate the Stuart laureate most closely with the imperial coolness of Absalom and Achitophel, such mastery and control was gained through countless literary skirmishes over the previous two decades. Before we can understand Dryden as satire’s master, this chapter proposes, we must understand him first as its victim.
The Satire of Dissent
Authors: Southcombe George 
Published: September 2019

Abstract
This chapter discusses the nonconformist contribution to satire from the Restoration of the monarchy to the early eighteenth century. The poetry of the Presbyterian Robert Wild, and particularly the work he produced on the imprisonment of Edmund Calamy in 1663, is analysed to show the perhaps surprising role played by bodily humour, scatology, and personal abuse in dissenting work. The continuation of this tradition is then traced through Andrew Marvell’s Advice-to-a-Painter poems, and a specific analysis is offered of the influence of Wild’s poetry on the Duchess of Albemarle’s speech in The Third Advice to a Painter. Finally, the ways in which Daniel Defoe participated in and shaped this tradition in his works on dissent are examined. The chapter ends by suggesting the reasons why the extent of the nonconformist engagement with satire has been forgotten, and more generally why dissent is not often now associated with laughter.
Swift, Gulliver, and Travel Satire
Authors: Carey Daniel 
Published: September 2019

Abstract
Swift’s Gulliver’s Travels (1726) stands in a long tradition of travel satire that emerged in the sixteenth, seventeenth, and eighteenth centuries. Travel and the travel book represent essential, constitutive elements of the story, serving as vehicle as well as subject matter for satirical treatment. Swift draws on established attacks on the traveller’s identity and how it becomes dislocated in travel, and the accusation of lying often levelled against travellers. Swift’s genius lies in taking this critique to a new extreme, and by structuring the story in a way that makes the form of travel writing collapse in on itself. His forebears include Thomas More, Rabelais, Ben Jonson, Richard Brome, George Etherege, and a host of critics writing on the art of travel (ars apodemica), like Joseph Hall and James Howell.
Pamela and the Satirists
Authors: Batchelor Jennie 
Published: September 2019

Abstract
Reading the Pamela controversy through Eliza Haywood’s still frequently overlooked Anti-Pamela (1741), this chapter demonstrates the failure and undesirability of Samuel Richardson’s efforts to supplant the satirical mode with the sentimental in his first novel. Much of the critical conversation about satire and sentiment in the mid-to-late eighteenth century has, with notable exceptions, positioned these as antagonistic modes. Moreover, the (exaggerated) demise of satire in the face of the tidal wave of sentiment has been often heralded as opening up new possibilities for the articulation of female subjectivity. Anti-Pamela, this chapter argues, undermines such claims. In a satirical novel that would mark a turning point in her career as a sceptical writer of sentimental fiction, Haywood revealed that ‘true’ satire, as opposed to the ‘scurrilous’ satire of which she accused her fellow interlocutor Henry Fielding, was the best antidote to the cultural fictions of gender promoted by the novel.