bluuebunny/crossref_metadata_2025_split huggingface dataset:
Media Attention and Bureaucratic Responsiveness
Authors: Erlich Aaron , Berliner Daniel , Palmer-Rubin Brian , Bagozzi Benjamin E 
Published: January 2021

Abstract
How does media attention shape bureaucratic behavior? We answer this question using novel data from the Mexican federal government. We first develop a new indicator for periods of anomalously heightened media attention, based on 150,000 news articles pertaining to 22 Mexican government ministries and agencies, and qualitatively categorize their themes. We then evaluate government responsiveness using administrative data on roughly 500,000 requests for government information over a 10-year period, with their associated responses. A panel fixed-effects approach demonstrates effects of media attention on the volume of outgoing weekly responses, while a second approach finds effects on the “queue” of information requests already filed when anomalous media attention begins. Consistent across these empirical approaches, we find that media attention shapes bureaucratic behavior. Positive or neutral attention is associated with reduced responsiveness, while the effects of negative attention vary, with attention to government failures leading to increased responsiveness but attention to corruption leading to reduced responsiveness. These patterns are consistent with mechanisms of reputation management, disclosure threat, and workload burden, but inconsistent with mechanisms of credit claiming or blame avoidance.
Contingent Homes: Mobility and Long-Term Conflict in the Contested Periphery of Georgia
Authors: Aydemir Görkem 
Published: January 2021

AbstractDisplaced Georgians in the de facto Georgia-Abkhazia borderland have lived in a zone of protracted ambivalence and contingency for almost three decades. During the war between the post-Socialist Georgian state and Abkhaz forces supporting the independence of Abkhazia, Georgian residents of Abkhazia were forced to flee to Georgia proper. Soon after the war’s end, thousands of displaced people started to access their homes in Gali, the southern borderland of the de facto state of Abkhazia. By persistently navigating shifting places and sovereignties, displaced Georgians from Gali construct lives on the move in a disputed and militarized borderland where contingency, surveillance, and economic precarity infiltrate everyday life. In such a space of life projects grounded in contested mobilities, home emerges as a question of being able to move across a disputed border rather than returning to a singular and fixed place.
Introduction to Special Issue: Displaced Syrians
Authors: Chatty Dawn 
Published: January 2021

Abstract
The articles presented here in this special issue on Displaced Syria emerged from a workshop held at The Institute of New York University in Abu Dhabi in March 2019. Its aims were to encourage an examination of the perceptions and aspiration of displaced Syrians and practitioners in hosting countries in the Levant, the Gulf, and in Europe with special attention to the voices of the displaced, their reimagining of home and homeland, and the emerging transnational sense of identity and belonging.
Priapism for 10 days in a patient with SARS-CoV-2 pneumonia: a case report
Authors: Addar Abdulmalik , Al Fraidi Omar , Nazer Ahmed , Althonayan Naif , Ghazwani Yahya 
Published: January 2021

ABSTRACT
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been linked to thromboembolic complications. Priapism has been reported only once in link to SARS-CoV2.
Here we report the second case of priapism in a patient with SARS-CoV2; our case is unique in being that the patient had priapism for 10 days while being hospitalized. We discuss potential causes and possible prevention strategies. The patient was managed by aspiration and Phenylephrine injection and achieved detumescence and reported normal erection at 2 weeks follow-up.
Planetary embryo collisions and the wiggly nature of extreme debris discs
Authors: Watt Lewis , Leinhardt Zoe , Su Kate Y L 
Published: January 2021

ABSTRACT
In this paper, we present results from a multistage numerical campaign to begin to explain and determine why extreme debris disc detections are rare, what types of impacts will result in extreme debris discs and what we can learn about the parameters of the collision from the extreme debris discs. We begin by simulating many giant impacts using a smoothed particle hydrodynamical code with tabulated equations of state and track the escaping vapour from the collision. Using an N-body code, we simulate the spatial evolution of the vapour generated dust post-impact. We show that impacts release vapour anisotropically not isotropically as has been assumed previously and that the distribution of the resulting generated dust is dependent on the mass ratio and impact angle of the collision. In addition, we show that the anisotropic distribution of post-collision dust can cause the formation or lack of formation of the short-term variation in flux depending on the orientation of the collision with respect to the orbit around the central star. Finally, our results suggest that there is a narrow region of semimajor axis where a vapour generated disc would be observable for any significant amount of time implying that giant impacts where most of the escaping mass is in vapour would not be observed often but this does not mean that the collisions are not occurring.
Rotating vector model for magnetars
Authors: Tong H , Wang P F , Wang H G , Yan Z 
Published: January 2021

ABSTRACT
The modification of the rotating vector model in the case of magnetars are calculated. Magnetars may have twisted magnetic field compared with normal pulsars. The polarization position angle of magnetars will change in the case of a twisted magnetic field. For a twisted dipole field, we found that the position angle will change both vertically and horizontally. During the untwisting process of the magnetar magnetosphere, the modifications of the position angle will evolve with time monotonously. This may explain the evolution of the position angle in magnetar PSR J1622-4950 and XTE J1810-197. The relation between the emission point and the line of sight will also change. We suggest every magnetospheric models of magnetars also calculate the corresponding changes of position angle in their models. Order of magnitude estimation formula for doing this is given. This opens the possibility to extract the magnetic field geometry of magnetars from their radio polarization observations.
Test of the cosmic distance duality relation for arbitrary spatial curvature
Authors: Qin Jin , Melia Fulvio , Zhang Tong-Jie 
Published: January 2021

ABSTRACT
The cosmic distance duality relation (CDDR), η(z) = (1 + z)2dA(z)/dL(z) = 1, is one of the most fundamental and crucial formulae in cosmology. This relation couples the luminosity and angular diameter distances, two of the most often used measures of structure in the Universe. We here propose a new model-independent method to test this relation, using strong gravitational lensing (SGL) and the high-redshift quasar Hubble diagram reconstructed with a Bézier parametric fit. We carry out this test without pre-assuming a zero spatial curvature, adopting instead the value ΩK = 0.001 ± 0.002 optimized by Planck in order to improve the reliability of our result. We parametrize the CDDR using η(z) = 1 + η0z, 1 + η1z + η2z2, and 1 + η3z/(1 + z), and consider both the SIS and non-SIS lens models for the strong lensing. Our best-fitting results are: $\eta _0=-0.021^{+0.068}_{-0.048}$, $\eta _1=-0.404^{+0.123}_{-0.090}$, $\eta _2=0.106^{+0.028}_{-0.034}$, and $\eta _3=-0.507^{+0.193}_{-0.133}$ for the SIS model, and $\eta _0=-0.109^{+0.044}_{-0.031}$ for the non-SIS model. The measured η(z), based on the Planck parameter ΩK, is essentially consistent with the value (=1) expected if the CDDR were fully respected. For the sake of comparison, we also carry out the test for other values of ΩK, but find that deviations of spatial flatness beyond the Planck optimization are in even greater tension with the CDDR. Future measurements of SGL may improve the statistics and alter this result but, as of now, we conclude that the CDDR favours a flat Universe.
SPIDERS: an overview of the largest catalogue of spectroscopically confirmed x-ray galaxy clusters
Authors: Kirkpatrick C C , Clerc N , Finoguenov A , Damsted S , Ider Chitham J , Kukkola A E , Gueguen A , Furnell K , Rykoff E , Comparat J , Saro A , Capasso R , Padilla N , Erfanianfar G , Mamon G A , Collins C , Merloni A , Brownstein J R , Schneider D P 
Published: January 2021

ABSTRACT
SPIDERS is the spectroscopic follow-up effort of the Sloan Digital Sky Survey IV (SDSS-IV) project for the identification of X-ray selected galaxy clusters. We present our catalogue of 2740 visually inspected galaxy clusters as part of the SDSS Data Release 16 (DR16). Here we detail the target selection, our methods for validation of the candidate clusters, performance of the survey, the construction of the final sample, and a full description of what is found in the catalogue. Of the sample, the median number of members per cluster is approximately 10, with 818 having 15 or greater. We find that we are capable of validating over 99 per cent of clusters when five redshifts are obtained below z &lt; 0.3 and when nine redshifts are obtained above z &gt; 0.3. We discuss the improvements in this catalogue’s identification of cluster using 33 340 redshifts, with Δzphot/Δzspec ∼ 100, over other photometric and spectroscopic surveys, as well as presenting an update to previous (σ–LX) and (σ–λ) relations. Finally, we present our cosmological constraints derived using the velocity dispersion function.
Magnetic fields in the Milky Way from pulsar observations: effect of the correlation between thermal electrons and magnetic fields
Authors: Seta Amit , Federrath Christoph 
Published: January 2021

ABSTRACTPulsars can act as an excellent probe of the Milky Way magnetic field. The average strength of the Galactic magnetic field component parallel to the line of sight can be estimated as $\langle B_\parallel \rangle = 1.232 \, \text{RM}/\text{DM}$, where RM and DM are the rotation and dispersion measure of the pulsar. However, this assumes that the thermal electron density and magnetic field of the interstellar medium are uncorrelated. Using numerical simulations and observations, we test the validity of this assumption. Based on magnetohydrodynamical simulations of driven turbulence, we show that the correlation between the thermal electron density and the small-scale magnetic field increases with increasing Mach number of the turbulence. We find that the assumption of uncorrelated thermal electron density and magnetic fields is valid only for subsonic and trans-sonic flows, but for supersonic turbulence, the field strength can be severely overestimated by using $1.232 \, \text{RM}/\text{DM}$. We then correlate existing pulsar observations from the Australia Telescope National Facility with regions of enhanced thermal electron density and magnetic fields probed by 12CO data of molecular clouds, magnetic fields from the Zeeman splitting of the 21 cm line, neutral hydrogen column density, and H α observations. Using these observational data, we show that the thermal electron density and magnetic fields are largely uncorrelated over kpc scales. Thus, we conclude that the relation $\langle B_\parallel \rangle = 1.232 \, \text{RM}/\text{DM}$ provides a good estimate of the magnetic field on Galactic scales, but might break down on sub-kpc scales.
Connection among environment, cloud–cloud collision speed, and star formation activity in the strongly barred galaxy NGC 1300
Authors: Maeda Fumiya , Ohta Kouji , Fujimoto Yusuke , Habe Asao 
Published: January 2021

ABSTRACTCloud-cloud collision (CCC) has been suggested as a mechanism to induce massive star formation. Recent simulations suggest that a CCC speed is different among galactic-scale environments, which is responsible for observed differences in star formation activity. In particular, a high-speed CCC is proposed as a cause of star formation suppression in the bar regions in barred spiral galaxies. Focusing on the strongly barred galaxy NGC 1300, we investigate the CCC speed. We find the CCC speed in the bar and bar-end tend to be higher than that in the arm. The estimated CCC speed is ${\sim}20$, ${\sim}16$, and ${\sim}11~\rm km~s^{-1}$ in the bar, bar-end, and arm, respectively. Although the star formation activity is different in the bar and bar-end, the CCC speed and the number density of high-speed CCC with ${\gt}20~\rm km~s^{-1}$ are high in both regions, implying the existence of other parameters that control the star formation. The difference in molecular gas mass (average density) of the giant molecular clouds (GMCs) between the bar (lower mass and lower density) and bar-end (higher mass and higher density) may be cause for the different star formation activity. Combining with our previous study, the leading candidates of causes for the star formation suppression in the bar in NGC 1300 are the presence of a large amount of diffuse molecular gases and high-speed CCCs between low-mass GMCs.
Assessing telluric correction methods for Na detections with high-resolution exoplanet transmission spectroscopy
Authors: Langeveld Adam B , Madhusudhan Nikku , Cabot Samuel H C , Hodgkin Simon T 
Published: January 2021

ABSTRACT
Using high-resolution ground-based transmission spectroscopy to probe exoplanetary atmospheres is difficult due to the inherent telluric contamination from absorption in Earth’s atmosphere. A variety of methods have previously been used to remove telluric features in the optical regime and calculate the planetary transmission spectrum. In this paper we present and compare two such methods, specifically focusing on Na detections using high-resolution optical transmission spectra: (1) calculating the telluric absorption empirically based on the airmass and (2) using a model of the Earth’s transmission spectrum. We test these methods on the transmission spectrum of the hot Jupiter HD 189733 b using archival data obtained with the HARPS spectrograph during three transits. Using models for Centre-to-Limb Variation and the Rossiter–McLaughlin effect, spurious signals which are imprinted within the transmission spectrum are reduced. We find that correcting tellurics with an atmospheric model of the Earth is more robust and produces consistent results when applied to data from different nights with changing atmospheric conditions. We confirm the detection of sodium in the atmosphere of HD 189733 b, with doublet line contrasts of $-0.64 \pm 0.07~{{\ \rm per\ cent}}$ (D2) and $-0.53 \pm 0.07~{{\ \rm per\ cent}}$ (D1). The average line contrast corresponds to an effective photosphere in the Na line located around 1.13 Rp. We also confirm an overall blueshift of the line centroids corresponding to net atmospheric eastward winds with a speed of 1.8 ± 1.2 km s−1. Our study highlights the importance of accurate telluric removal for consistent and reliable characterization of exoplanetary atmospheres using high-resolution transmission spectroscopy.
SuperWASP variable stars: classifying light curves using citizen science
Authors: Thiemann Heidi B , Norton Andrew J , Dickinson Hugh J , McMaster Adam , Kolb Ulrich C 
Published: January 2021

ABSTRACT
We present the first analysis of results from the SuperWASP variable stars Zooniverse project, which is aiming to classify 1.6 million phase-folded light curves of candidate stellar variables observed by the SuperWASP all sky survey with periods detected in the SuperWASP periodicity catalogue. The resultant data set currently contains &gt;1 million classifications corresponding to &gt;500 000 object–period combinations, provided by citizen–scientist volunteers. Volunteer-classified light curves have ∼89 per cent accuracy for detached and semidetached eclipsing binaries, but only ∼9 per cent accuracy for rotationally modulated variables, based on known objects. We demonstrate that this Zooniverse project will be valuable for both population studies of individual variable types and the identification of stellar variables for follow-up. We present preliminary findings on various unique and extreme variables in this analysis, including long-period contact binaries and binaries near the short-period cut-off, and we identify 301 previously unknown binaries and pulsators. We are now in the process of developing a web portal to enable other researchers to access the outputs of the SuperWASP variable stars project.
Therapeutic targeting of transcriptional elongation in diffuse intrinsic pontine glioma
Authors: Katagi Hiroaki , Takata Nozomu , Aoi Yuki , Zhang Yongzhan , Rendleman Emily J , Blyth Gavin T , Eckerdt Frank D , Tomita Yusuke , Sasaki Takahiro , Saratsis Amanda M , Kondo Akihide , Goldman Stewart , Becher Oren J , Smith Edwin , Zou Lihua , Shilatifard Ali , Hashizume Rintaro 
Published: January 2021

AbstractBackgroundDiffuse intrinsic pontine glioma (DIPG) is associated with transcriptional dysregulation driven by H3K27 mutation. The super elongation complex (SEC) is required for transcriptional elongation through release of RNA polymerase II (Pol II). Inhibition of transcription elongation by SEC disruption can be an effective therapeutic strategy of H3K27M-mutant DIPG. Here, we tested the effect of pharmacological disruption of the SEC in H3K27M-mutant DIPG to advance understanding of the molecular mechanism and as a new therapeutic strategy for DIPG.MethodsShort hairpin RNAs (shRNAs) were used to suppress the expression of AF4/FMR2 4 (AFF4), a central SEC component, in H3K27M-mutant DIPG cells. A peptidomimetic lead compound KL-1 was used to disrupt a functional component of SEC. Cell viability assay, colony formation assay, and apoptosis assay were utilized to analyze the effects of KL-1 treatment. RNA- and ChIP-sequencing were used to determine the effects of KL-1 on gene expression and chromatin occupancy. We treated mice bearing H3K27M-mutant DIPG patient-derived xenografts (PDXs) with KL-1. Intracranial tumor growth was monitored by bioluminescence image and therapeutic response was evaluated by animal survival.ResultsDepletion of AFF4 significantly reduced the cell growth of H3K27M-mutant DIPG. KL-1 increased genome-wide Pol II occupancy and suppressed transcription involving multiple cellular processes that promote cell proliferation and differentiation of DIPG. KL-1 treatment suppressed DIPG cell growth, increased apoptosis, and prolonged animal survival with H3K27M-mutant DIPG PDXs.ConclusionsSEC disruption by KL-1 increased therapeutic benefit in vitro and in vivo, supporting a potential therapeutic activity of KL-1 in H3K27M-mutant DIPG.
Selective catalytic reduction of NOx with NH3: opportunities and challenges of Cu-based small-pore zeolites
Authors: Shan Yulong , Du Jinpeng , Zhang Yan , Shan Wenpo , Shi Xiaoyan , Yu Yunbo , Zhang Runduo , Meng Xiangju , Xiao Feng-Shou , He Hong 
Published: January 2021

Abstract
Zeolites, as efficient and stable catalysts, are widely used in the environmental catalysis field. Typically, Cu-SSZ-13 with small-pore structure shows excellent catalytic activity for selective catalytic reduction of NOx with ammonia (NH3-SCR) as well as high hydrothermal stability. This review summarizes major advances in Cu-SSZ-13 applied to the NH3-SCR reaction, including the state of copper species, standard and fast SCR reaction mechanism, hydrothermal deactivation mechanism, poisoning resistance and synthetic methodology. The review gives a valuable summary of new insights into the matching between SCR catalyst design principles and the characteristics of Cu2+-exchanged zeolitic catalysts, highlighting the significant opportunity presented by zeolite-based catalysts. Principles for designing zeolites with excellent NH3-SCR performance and hydrothermal stability are proposed. On the basis of these principles, more hydrothermally stable Cu-AEI and Cu-LTA zeolites are elaborated as well as other alternative zeolites applied to NH3-SCR. Finally, we call attention to the challenges facing Cu-based small-pore zeolites that still need to be addressed.
Smell
Authors: Maxwell Catherine 
Published: January 2021

Abstract
This chapter explores the topic of olfaction and perfume in decadent culture by arguing that many decadent authors styled themselves as olfactifs—cultivated individuals with a refined sense of smell. They celebrated fragrance both in their personal lives and in their writings, where the odors of perfume, incense, and tobacco emerge as the dominant olfactory keynotes of decadence. The chapter opens with a discussion of smoking and notes its various olfactory meanings for both male and female decadent writers, before considering incense, perfume use, and fashion, including the positive and negative attitudes toward perfume wearing in the mid- to late Victorian era. The final section focuses on flower fragrance in an urban environment and examines poems by Arthur Symons and Laurence Binyon to tease out some of the complex relations between decadence, perfume, artifice, and nature prevalent at this time.
Science
Authors: Kistler Jordan 
Published: January 2021

Abstract
This chapter considers the relationship between decadence, individualism, and science at the end of the nineteenth century. Individualism was considered key to the decadent style, yet it was also widely understood by sociologists and scientists to be symptomatic of nervous disease and social decline. This chapter argues that the overly civilized, nervous, and exhausted heroes of decadent literature result from the widespread understanding of the human being as an energy system, subject to the recently formulated laws of thermodynamics. As isolated systems, these characters use up their energy in increasing disorder, “continually suffering deductions, [until] these unceasing deductions finally result in the cessation of motion” (Herbert Spencer, “Progress: Its Law and Cause,” 1880). Thus, many decadent texts can only end with nothing other than the death of their protagonist.
Kushites in Egypt, 664 BCE–14 CE
Authors: Howley Kathryn 
Published: January 2021

AbstractAfter the end of the 25th Dynasty in 664 bce, Kushite kings no longer had territorial control over Egypt. Nevertheless, reflecting the long history of interaction between the two lands, Kushite presence in Egypt continued. This article discusses evidence for Kushites in Egypt from the beginning of the 26th Dynasty to the end of the reign of Augustus, and argues that the continuing presence of Kushites in Egypt was largely driven by the shared religious practice of the two cultures. The differing cultural backgrounds of the two lands, in particular their incompatible views of territorial borders, meant that religious interaction often went side by side with political conflict. This conflict produced a unique religious architecture in the frontier region in which the two-way, entangled nature of interaction between Kushite and Egyptian culture can be seen.
Language and Writing in the Kingdom of Meroe
Authors: Rilly Claude 
Published: January 2021

AbstractSudan is one the rare places in inner Africa where the study of languages can rely on a long historical depth, thanks to ancient Egyptian sources. Two linguistic phyla, Afro-Asiatic and Nilo-Saharan, are present in the region for millennia. Meroitic, belonging to the Nilo-Saharan phylum, was since the 2nd millennium bce the main spoken language of Nubia. Although its two scripts were deciphered in 1911, the language is not yet fully understood. Further progress is expected from linguistic comparison with living languages of the same family and from future excavations.