bluuebunny/crossref_metadata_2025_split huggingface dataset:
Very Long Baseline Array Imaging of Type-2 Seyferts with Double-peaked Narrow Emission Lines: Searches for Sub-kpc Dual AGNs and Jet-powered Outflows*
Authors: Liu Xin , Lazio T. Joseph W. , Shen Yue , Strauss Michael A. 
Published: February 2018

Abstract
This paper presents Very Long Baseline Array (VLBA) observations of 13 double-peaked [O iii] emission-line type-2 active galactic nuclei (AGNs) at redshifts 0.06 < z < 0.41 (with a median redshift of z ∼ 0.15) identified in the Sloan Digital Sky Survey. Such double-peaked emission-line objects may result from jets or outflows from the central engine or from a dual AGN. The VLBA provides an angular resolution of ≲10 pc at the distance of many of these galaxies, sufficient to resolve the radio emission from extremely close dual AGNs and to contribute to understanding the origin of double-peaked [O iii] emission lines. Of the 13 galaxies observed at 3.6 cm (8.4 GHz), we detect six at a 1σ sensitivity level of ∼0.15 mJy beam−1, two of which show clear jet structures on scales ranging from a few milliarcseconds to tens of milliarcseconds (corresponding to a few pc to tens of pc at a median redshift of 0.15). We suggest that radio-loud, double-peaked emission-line type-2 AGNs may be indicative of jet produced structures, but a larger sample of double-peaked [O iii] AGNs with high angular resolution radio observations will be required to confirm this suggestion.
Physical Properties and Evolutionary States of EA-type Eclipsing Binaries Observed by LAMOST
Authors: Qian S.-B. , Zhang J. , He J.-J. , Zhu L.-Y. , Zhao E.-G. , Shi X.-D. , Zhou X. , Han Z.-T. 
Published: February 2018

Abstract
About 3196 EA-type binaries (EAs) were observed by LAMOST by 2017 June 16 and their spectral types were derived. Meanwhile, the stellar atmospheric parameters of 2020 EAs were determined. In this paper, those EAs are cataloged and their physical properties and evolutionary states are investigated. The period distribution of EAs suggests that the period limit of tidal locking for the close binaries is about 6 days. It is found that the metallicity of EAs is higher than that of EW-type binaries (EWs), indicating that EAs are generally younger than EWs and they are the progenitors of EWs. The metallicities of long-period EWs (

days) are the same as those of EAs with the same periods, while their values of Log (g) are usually smaller than those of EAs. These support the evolutionary process that EAs evolve into long-period EWs through the combination of angular momentum loss (AML) via magnetic braking and case A mass transfer. For short-period EWs, their metallicities are lower than those of EAs, while their gravitational accelerations are higher. These reveal that they may be formed from cool short-period EAs through AML via magnetic braking with little mass transfer. For some EWs with high metallicities, they may be contaminated by material from the evolution of unseen neutron stars and black holes or they have third bodies that may help them to form rapidly through a short timescale of pre-contact evolution. The present investigation suggests that the modern EW populations may have formed through a combination of these mechanisms.
A Precise Distance to the Host Galaxy of the Binary Neutron Star Merger GW170817 Using Surface Brightness Fluctuations∗
Authors: Cantiello Michele , Jensen J. B. , Blakeslee J. P. , Berger E. , Levan A. J. , Tanvir N. R. , Raimondo G. , Brocato E. , Alexander K. D. , Blanchard P. K. , Branchesi M. , Cano Z. , Chornock R. , Covino S. , Cowperthwaite P. S. , D’Avanzo P. , Eftekhari T. , Fong W. , Fruchter A. S. , Grado A. , Hjorth J. , Holz D. E. , Lyman J. D. , Mandel I. , Margutti R. , Nicholl M. , Villar V. A. , Williams P. K. G. 
Published: February 2018

Abstract
The joint detection of gravitational waves (GWs) and electromagnetic radiation from the binary neutron star (BNS) merger GW170817 has provided unprecedented insight into a wide range of physical processes: heavy element synthesis via the r-process; the production of relativistic ejecta; the equation of state of neutron stars and the nature of the merger remnant; the binary coalescence timescale; and a measurement of the Hubble constant via the “standard siren” technique. In detail, all of these results depend on the distance to the host galaxy of the merger event, NGC 4993. In this Letter we measure the surface brightness fluctuation (SBF) distance to NGC 4993 in the F110W and F160W passbands of the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the Hubble Space Telescope (HST). For the preferred F110W passband we derive a distance modulus of

(
m
−
M
)

=
33.05
±
0.08
±
0.10

mag, or a linear distance d = 40.7 ± 1.4 ± 1.9 Mpc (random and systematic errors, respectively); a virtually identical result is obtained from the F160W data. This is the most precise distance to NGC 4993 available to date. Combining our distance measurement with the corrected recession velocity of NGC 4993 implies a Hubble constant H
0 = 71.9 ± 7.1 km s−1 Mpc−1. A comparison of our result to the GW-inferred value of H
0 indicates a binary orbital inclination of i ≳ 137°. The SBF technique can be applied to early-type host galaxies of BNS mergers to ∼100 Mpc with HST and possibly as far as ∼300 Mpc with the James Webb Space Telescope, thereby helping to break the inherent distance-inclination degeneracy of the GW data at distances where many future BNS mergers are likely to be detected.
Solar Radio Burst Associated with the Falling Bright EUV Blob
Authors: Karlický Marian , Zemanová Alena , Dudík Jaroslav , Radziszewski Krzysztof 
Published: February 2018

Abstract
At the beginning of the 2015 November 4 flare, in the 1300–2000 MHz frequency range, we observed a very rare slow positively drifting burst. We searched for associated phenomena in simultaneous EUV observations made by IRIS, SDO/AIA, and Hinode/XRT, as well as in H
α
observations. We found that this radio burst was accompanied with the bright blob, visible at transition region, coronal, and flare temperatures, falling down to the chromosphere along the dark loop with a velocity of about 280 km s−1. The dark loop was visible in H
α
but disappeared afterward. Furthermore, we found that the falling blob interacted with the chromosphere as expressed by a sudden change of the H
α
spectra at the location of this interaction. Considering different possibilities, we propose that the observed slow positively drifting burst is generated by the thermal conduction front formed in front of the falling hot EUV blob.
Declining Rotation Curves at z = 2 in ΛCDM Galaxy Formation Simulations
Authors: Teklu Adelheid F. , Remus Rhea-Silvia , Dolag Klaus , Arth Alexander , Burkert Andreas , Obreja Aura , Schulze Felix 
Published: February 2018

Abstract
Selecting disk galaxies from the cosmological, hydrodynamical simulation Magneticum Pathfinder, we show that almost half of our poster child disk galaxies at z = 2 show significantly declining rotation curves and low dark matter fractions, very similar to recently reported observations. These galaxies do not show any anomalous behavior, they reside in standard dark matter halos, and they typically grow significantly in mass until z = 0, where they span all morphological classes, including disk galaxies matching present-day rotation curves and observed dark matter fractions. Our findings demonstrate that declining rotation curves and low dark matter fractions in rotation-dominated galaxies at z = 2 appear naturally within the ΛCDM paradigm and reflect the complex baryonic physics, which plays a role at the peak epoch of star formation. In addition, we find some dispersion-dominated galaxies at z = 2 that host a significant gas disk and exhibit similar shaped rotation curves as the disk galaxy population, rendering it difficult to differentiate between these two populations with currently available observation techniques.
An evaluation of Global Management Accounting Principles in the sustainability of a South African mechanised piggery
Authors: Burger Alick B. , Middelberg Susanna L. 
Published: February 2018

Research purpose: The aim of this article was to evaluate the relevance of Global Management Accounting Principles (GMAPs) in the sustainability of a mechanised piggery in a South African context.Motivation for the study: Considering the pressure which commercial agriculture in South Africa is experiencing, as well as the growing nature of pork production in this sector, mechanised piggeries would have to consider ways in which to manage their operations in order to remain sustainable.Research approach, design and method: The research design took the form of an exploratory case study and contextual applied research with an inductivist approach to qualitative research.Main findings: The findings include that, without pre-knowledge of GMAPs, Piggery A employed a large number of the concepts and principles described by GMAPs as best practice.Practical and managerial implications: All commercial farming operations should consider GMAPs as a tool to establish best practice in the support of decision-making that promotes sustainability of farming operations.Contribution or value-add: The article’s contribution is to highlight that GMAPs can also be utilised as an effective decision-making tool in a mechanised piggery albeit it was designed for use in large corporations.
Development and software piracy
Authors: Martínez-Sánchez Francisco , Romeu Andrés 
Published: February 2018

Abstract
In this paper, the authors analyze the differences in piracy rates from one country to another. Like previous papers on the topic, they find that more developed countries have lower incentives for pirating. Unlike previous papers, they find that the piracy rate is positively correlated with the tax burden rate but negatively correlated with the domestic market size and exports over GDP. The authors also separate the impacts of education and R&D on piracy, and find two effects with opposite signs. Moreover, they find that those countries with smaller, more efficient bureaucracies are likely to protect intellectual property more effectively. Finally, they show that the spread of access to the Internet is negatively correlated with the software piracy rate.
Impact of biomass burning on pollutant surface concentrations in megacities of the Gulf of Guinea
Authors: Menut Laurent , Flamant Cyrille , Turquety Solène , Deroubaix Adrien , Chazette Patrick , Meynadier Rémi 
Published: February 2018

Abstract. In the framework of the Dynamics–Aerosol–Chemistry–Cloud Interactions in West
Africa (DACCIWA) project, the tropospheric chemical composition in large
cities along the Gulf of Guinea is studied using the Weather and Research
Forecast and CHIMERE regional models. Simulations are performed for the
May–July 2014 period, without and with biomass burning emissions. Model
results are compared to satellite data and surface measurements. Using
numerical tracer release experiments, it is shown that the biomass burning
emissions in Central Africa are impacting the surface aerosol and gaseous
species concentrations in Gulf of Guinea cities such as Lagos (Nigeria) and
Abidjan (Ivory Coast). Depending on the altitude of the injection of these
emissions, the pollutants follow different pathways: directly along the coast
or over land towards the Sahel before being vertically mixed in the
convective boundary layer and transported to the south-west and over the
cities. In July 2014, the maximum increase in surface concentrations due to
fires in Central Africa is ≈ 150 µg m−3 for CO,
≈ 10 to 20 µg m−3 for O3 and
≈ 5 µg m−3 for PM10. The analysis of the
PM10 chemical composition shows that this increase is mainly related to
an increase in particulate primary and organic matter.
A low-cost particulate matter (PM2.5) monitor for wildland fire smoke
Authors: Kelleher Scott , Quinn Casey , Miller-Lionberg Daniel , Volckens John 
Published: February 2018

Abstract. Wildfires and prescribed fires produce emissions that degrade
visibility and are harmful to human health. Smoke emissions and
exposure monitoring is critical for public and environmental health
protection; however, ground-level measurements of smoke from
wildfires and prescribed fires has proven difficult, as existing
(validated) monitoring technologies are expensive, cumbersome, and
generally require line power. Few ground-based measurements are made
during fire events, which limits our ability to assess the
environmental and human health impacts of wildland fire smoke. The objective of this work was to develop and validate an Outdoor
Aerosol Sampler (OAS) – a filter-based air sampler that has been
miniaturized, solar powered, and weatherproofed. This sampler was
designed to overcome several of the technical challenges of wildland
fire monitoring by being relatively inexpensive and solar
powered. The sampler design objectives were achieved by leveraging
low-cost electronic components, open-source programming platforms,
and in-house fabrication methods. A direct-reading PM2.5
sensor was selected and integrated with the OAS to provide
time-resolved concentration data. Cellular communications
established via short message service (SMS) technology were utilized
in transmitting online sensor readings and controlling the sampling
device remotely. A Monte Carlo simulation aided in the selection of
battery and solar power necessary to independently power the OAS,
while keeping cost and size to a minimum. Thirteen OAS were deployed to monitor smoke concentrations downwind
from a large prescribed fire. Aerosol mass concentrations were
interpolated across the monitoring network to depict smoke
concentration gradients in the vicinity of the fire. Strong
concentration gradients were observed (spatially and temporally) and
likely present due to a combination of changing fire location and
intensity, topographical features (e.g., mountain ridges), and
diurnal weather patterns. Gravimetric filter measurements made by
the OAS (when corrected for filter collection efficiency) showed
relatively good agreement with measurements from an EPA federal
equivalent monitor. However, the real-time optical sensor (Sharp
GP2Y1023AU0F, Sharp Electronic Co.) within the OAS suffered from
temperature dependence, drift, and imprecision.
Antagonistic effects of drought and sand burial enable the survival of the biocrust moss Bryum argenteum in an arid sandy desert
Authors: Jia Rongliang , Zhao Yun , Gao Yanhong , Hui Rong , Yang Haotian , Wang Zenru , Li Yixuan 
Published: February 2018

Abstract. Biocrust moss is an essential soil surface bio-cover. It can represent the latest succession stage among the diverse range of surface-dwelling cryptogams (e.g., cyanobacteria, green algae, and lichen, which are also referred to as biocrusts), and it can make a major contribution to soil stability and fertility in many arid sandy desert ecosystems. The soil surface represents a very large ecological niche that is poikilohydric in nature. Biocrust moss is therefore highly susceptible to drought and sand burial, which are two ubiquitous stressors in arid sandy deserts. However, little information is available regarding the mechanism by which biocrust moss can survive and flourish in these habitats when stressed simultaneously by the two stressors. The combined effects of drought and sand burial were evaluated in a field experiment using the predominant biocrust moss, Bryum argenteum Hedw., in the Tengger Desert, China. Drought was simulated by applying distilled water in three artificial rainfall regimes at 8-day intervals in spring and autumn: 4 and 6 mm (average rainfall, control), 2 and 3 mm (double drought), and 1 and 1.5 mm (4-fold drought), respectively. The effect of sand burial was determined by applying six treatments, i.e., sand depths of 0 (control), 0.5, 1, 2, 4, and 10 mm. The four parameters of chlorophyll a content, PSII photochemical efficiency, regeneration potential, and shoot upgrowth were evaluated in the moss. It was found that the combined effects of drought and sand burial did not exacerbate the single negative effects of the four parameters tested. Drought significantly ameliorated the negative effects of deep-sand burial on the retention of chlorophyll a content, PSII photochemical efficiency, and the regeneration potential of B. argenteum. Sand burial diminished and even reversed the negative effects of drought on the maintenance of chlorophyll a content, PSII photochemical efficiency, and regeneration potential. Although drought and sand burial imposed an additive negative effect on shoot upgrowth, which suggested a trade-off between growth ability and stress tolerance, their mutually antagonistic effect on the physiological vigor of B. argenteum provided an opportunity for the biocrust moss to overcome the two co-occurring stressors. In addition to providing a strong stress tolerance, drought and sand burial may provide an important mechanism for the biodiversity maintenance of biocrust mosses in arid sandy ecosystems.
Slope stability and rockfall assessment of volcanic tuffs using RPAS with 2-D FEM slope modelling
Authors: Török Ákos , Barsi Árpád , Bögöly Gyula , Lovas Tamás , Somogyi Árpád , Görög Péter 
Published: February 2018

Abstract. Steep, hardly accessible cliffs of rhyolite tuff in NE Hungary are prone to
rockfalls, endangering visitors of a castle. Remote sensing techniques were
employed to obtain data on terrain morphology and to provide slope geometry
for assessing the stability of these rock walls. A RPAS (Remotely Piloted
Aircraft System) was used to collect images which were processed by Pix4D
mapper (structure from motion technology) to generate a point cloud and mesh.
The georeferencing was made by Global Navigation Satellite System (GNSS) with
the use of seven ground control points. The obtained digital surface model
(DSM) was processed (vegetation removal) and the derived digital terrain
model (DTM) allowed cross sections to be drawn and a joint system to be
detected. Joint and discontinuity system was also verified by field
measurements. On-site tests as well as laboratory tests provided additional
engineering geological data for slope modelling. Stability of cliffs was
assessed by 2-D FEM (finite element method). Global analyses of cross
sections show that weak intercalating tuff layers may serve as potential slip
surfaces. However, at present the greatest hazard is related to planar
failure along ENE–WSW joints and to wedge failure. The paper demonstrates
that RPAS is a rapid and useful tool for generating a reliable terrain model
of hardly accessible cliff faces. It also emphasizes the efficiency of RPAS
in rockfall hazard assessment in comparison with other remote sensing
techniques such as terrestrial laser scanning (TLS).
Beyond St. Anne Teaching the Virgin Mary: St. Monica, St. Birgitta of Sweden, and Teaching Children the Faith in Fifteenth-Century England
Authors: Sabalis Samantha 
Published: February 2018

Abstract
This article examines depictions of St. Monica and St. Birgitta of Sweden as religious teachers for their children in fifteenth-century England. While many critics have used the iconography of St. Anne teaching the Virgin Mary to read as evidence for such teaching, this study focuses on textual proof from hagiography, using John Capgrave's portrayal of St. Monica in his Life of St. Augustine and the lives and Revelations of St. Birgitta of Sweden circulating in England. These texts highlight how Monica and Birgitta take an active role in raising their children as good Christians, praying and crying over their spiritual welfare, but must ultimately turn to ecclesiastical authorities for help with their religious education. In the charged religious climate of fifteenth-century England, these texts emphasize clerical supervision and prioritize the more conventional practices of tears and prayer over religious teaching for mothers to preserve their children's faith.
Asset Transfer of Subsidiary of PT ASKES (Persero) and Its Implications for the Utility of Participant Health Security
Authors: Kristian Adhi 
Published: February 2018

Abstract. This research aims to learn about PT AJII transformation process as well as the implications of the transfer concerning service delivery to the National Health Insurance beneficiary.This is a normative empirical research, analyzing provision of the prevailing laws, legal principles and of the practice by carrying out library and field research. Informants of the research were the Primary Commissioner of PT AJII, who acted as internal supervisor of the transfer, member of Social Security Ageny Bodies, (BPJS) and experts of social security who provided information and solution about the problems researched. The data obtained were analyzed by using qualitative method.Research result indicated that 80 percent shares of PT AJII were acquiesced, resulting in a transfer of control toward the company. The transfer process was problematic, dilemmatic, and potentially illegal. In addition to the three different legal provisions involved, the transfer also had to comply with both the public interest, that was the stakeholder participants, and the private interests, (shareholder of PT AJII). There was a possibility of illegality. It was on 23 of December 2013 that the transfer process of PT AJII was still in the stage of agreement signing, while the whole process had to end before 1 January 2014. This is in accordance with article 60 paragraph (3) of BPJS Law, that on 1 January 2014 PT Askes was no longer exist. All legal acts on behalf of PT Askes, including the transfer of its subsidiary company, remain intolerate because the management of PT Askes had become the management of BPJS. Additionally, it was also found that the transfer could have an implication to the increase of the service capacity of BPJS and the increase of utility for the participants. Keywords: BPJS, assets transfer, implications , utility
An Analysis of the Implementation of the Policy to Integrate of National Defense Components in Managing Non-Military Threats in the Health Sector
Authors: Winarno Sugeng , Suwondo Prastuti 
Published: February 2018

Abstract. This research was based on the Minister of Defense’s Decree No. 16/2012 that stated that all national defense components to integrate into one unit when they encounter military and non-military threats. The Ministry of Health, as the main player, and other governmental and private agencies would also play a role in overcoming complex and multidimensional non-military threats, especially in the health sector. Among those threats are infectious diseases such as HIV/AIDS and Ebola. We aim to discover the implementation process of the law above in the management of those two diseases. This was a qualitative analytical research with in-depth interviews. From this research we discovered that there are several confounding factors in both the main and supporting elements of the implementation, they are the lack of socialization for the policy and fragmented management of the resources and early awareness. We recommend that the ministry increase the socialization and coordination between all stakeholders of all the sectors and from the central to the regional government. Keywords: non-military threats, national defense components, policy implementation