cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metallicity Properties of the Galactic Bulge Stars Near and Far: Expectations from the Auriga Simulation
Creators: name: Chen, Bin-Hui
name: Li, Zhao-Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the high resolution Milky Way-like model from Auriga simulation we study the chemical properties of the Galactic bulge, focusing on the metallicity difference between stars on the near side (in front of the Galactic center) and the far side (behind the Galactic center). In general, along certain sight lines the near side is more metal-rich than the far side, consistent with the negative vertical metallicity gradient of the disk, since the far side is located higher above the disk plane than the near side. However, at the region $l<0^\circ$ and $|b|\le6^\circ$, the near side is even more metal-poor than the far side, and their difference changes with the Galactic longitude. This is mainly due to the fact that stars around the minor axis of the bar are more metal-poor than those around the major axis. Since the bar is tilted, in the negative longitude region, the near side is mainly contributed by stars close to the minor axis region than the far side to result in such metallicity difference. We extract stars in the X-shape structure by identifying the overdensities in the near and far sides. Their metallicity properties are consistent with the results of the whole Galactic bulge. The boxy/peanut-shaped bulge can naturally explain the metallicity difference of the double red clump stars in observation. There is no need to involve a classical bulge component with different stellar populations.
description: ApJ accepted, 10 pages plus the Appendix. Comments are welcome
Pulsational instability of pre-main-sequence models from accreting protostars II. Modelling echelle diagrams of $δ$ Scuti stars without rotational splitting
Creators: name: Steindl, T.
name: Zwintz, K.
name: Müllner, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The physics of early stellar evolution (e.g. accretion processes) is often not properly included in the calculations of pre-main-sequence models, leading to insufficient model grids and hence systematic errors in the results. We aim to investigate current and improved approaches for the asteroseismic modelling of pre-main-sequence delta Scuti stars. We calculated an extensive grid of pre-main-sequence models including the early accretion phase and used the resulting equilibrium models as input to calculate theoretical frequency spectra. These spectra were used to investigate different approaches in modelling echelle diagrams to find the most reliable methods. By applying Petersen diagrams, we present a simple algorithm to extract echelle diagrams from observed pulsation frequencies. We show that model grids with insufficient input physics and imperfect modelling approaches lead to underestimated uncertainties and systematic errors in the extracted stellar parameters. Our re-discussion of HD 139614 leads to different stellar parameters than the ones derived by Murphy et al. (2021). We performed a model comparison between this previous investigation and our results by applying the Akaike and Bayesian information criteria. While the results with regard to our 10-d model are inconclusive, they show (very) strong evidence of a 6-d model with fixed accretion parameters (leading to almost identical stellar parameters to those of the 10-d model) to be preferred over the model applied by Murphy et al. (2021). In general, our modelling approach can provide narrow constraints on the stellar parameters (ΔR ~ 0.05 R_\odot, Δlog g <~ 0.01, and ΔM_\star ~ 0.1 M_\odot). The extensively tested modelling approaches and automatic extraction of echelle diagrams should allow us to study many more pre-main-sequence delta Scuti stars in the future and lead to reliable stellar parameters.
description: 18 pages, 13 figures, accepted for publication in Astronomy & Astrophysics
Codebooks for data scraping and analysis of data in 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (accepted for publication in the Journal of Empirical Legal Studies)
Creators: name: Yuvaraj, Joshua
name: Giblin, Rebecca
name: Russo-Batterham, Daniel
Publisher: name: University of Melbourne
Year: 2021
Subjects: Intellectual property law

description: These are the codebooks used to extract, construct, and analyse the datasets in Yuvaraj, J., Giblin, R., Russo-Batterham, D., & Grant, G. 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (accepted for publication in the Journal of Empirical Legal Studies).
They were written in Jupyter notebooks using the Python programming language. We also used the numpy, pandas, and matplotlib packages.
The codebooks are intended to be read sequentially, so later notebooks will only have instructions that have not already been set out. While every effort has been made to ensure the notebooks are user-friendly, users are encouraged to contact the corresponding author at joshua.yuvaraj@unimelb.edu.au if any questions arise.
The Black Hole Mass Function Across Cosmic Times II. Heavy Seeds and (Super)Massive Black Holes
Creators: name: Sicilia, A.
name: Lapi, A.
name: Boco, L.
name: Shankar, F.
name: Alexander, D. M.
name: Allevato, V.
name: Villforth, C.
name: Massardi, M.
name: Spera, M.
name: Bressan, A.
name: Danese, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This is the second paper in a series aimed at modeling the black hole (BH) mass function, from the stellar to the (super)massive regime. In the present work we focus on (super)massive BHs and provide an ab-initio computation of their mass function across cosmic times. We consider two main mechanisms to grow the central BH, that are expected to cooperate in the high-redshift star-forming progenitors of local massive galaxies. The first is the gaseous dynamical friction process, that can cause the migration toward the nuclear regions of stellar-mass BHs originated during the intense bursts of star formation in the gas-rich host progenitor galaxy, and the buildup of a central heavy BH seed $M_\bullet\sim 10^{3-5}\, M_\odot$ within short timescales $\lesssim$ some $10^7$ yr. The second mechanism is the standard Eddington-type gas disk accretion onto the heavy BH seed, through which the central BH can become (super)massive $M_\bullet\sim 10^{6-10}\, M_\odot$ within the typical star-formation duration $\lesssim 1$ Gyr of the host. We validate our semi-empirical approach by reproducing the observed redshift-dependent bolometric AGN luminosity functions and Eddington ratio distributions, and the relationship between the star-formation and the bolometric luminosity of the accreting central BH. We then derive the relic (super)massive BH mass function at different redshifts via a generalized continuity equation approach, and compare it with present observational estimates. Finally, we reconstruct the overall BH mass function from the stellar to the (super)massive regime, over more than ten orders of magnitudes in BH mass.
description: 29 pages, 11 figures. Accepted by ApJ
Research Data Management with DataLad - Workshop for the Max Planck School of Cognition
Creators: name: Hanke, Michael
name: Wagner, Adina S.
Publisher: name: Zenodo
Year: 2022
Subjects: Research Data Management
Version control
DataLad

description: Slides and general materials for a two-half-day Workshop "Research Data Management with DataLad" for the Max Planck School of Cognition, held by Adina Wagner and Michael Hanke. The numbered files "mpsc-*.pdf" contain the slide decks for the 4 sessions. Each slide deck contains links to relevant materials and code. The file "ws-py-requirements.txt" contains the additional Python setup our Juypterhub provides participants. If you are coding along on your own system, you should install those requirements in addition to DataLad via "pip intall -r ws-py-requirements.txt". Mac users additionally might want to install "tig" on their system (https://jonas.github.io/tig/INSTALL.html). The sources for these slides can be found at https://github.com/datalad-handbook/datalad-course.
Codebooks for data scraping and analysis of data in 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets'
Creators: name: Yuvaraj, Joshua
name: Giblin, Rebecca
name: Russo-Batterham, Daniel
Publisher: name: University of Melbourne
Year: 2021
Subjects: Intellectual property law

description: These are the codebooks used to extract, construct, and analyse the datasets in Yuvaraj, J., Giblin, R., Russo-Batterham, D., & Grant, G. 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (accepted for publication in the Journal of Empirical Legal Studies).
They were written in Jupyter notebooks using the Python programming language. We also used the numpy, pandas, and matplotlib packages.
The codebooks are intended to be read sequentially, so later notebooks will only have instructions that have not already been set out. While every effort has been made to ensure the notebooks are user-friendly, users are encouraged to contact the corresponding author at joshua.yuvaraj@unimelb.edu.au if any questions arise.
X-ray observations of the isolated black hole candidate OGLE-2011-BLG-0462 , and other collapsed objects discovered through gravitational microlensing
Creators: name: Mereghetti, Sandro
name: Sidoli, Lara
name: Ponti, Gabriele
name: Treves, Aldo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Isolated black holes and neutron stars can be revealed through the observation of long duration gravitational microlensing events. A few candidates have been found in surveys of stars in the direction of the Galactic bulge. Recently, thanks to the addition of astrometric information at milliarcsecond level, it has been possible to reduce the uncertainties in the masses and distances for some of these "dark" gravitational lenses and select the most promising candidates. These isolated compact objects might emit X-rays powered by accretion from the interstellar medium. Using data of the Chandra, XMM-Newton, and INTEGRAL satellites, we searched for X-ray emission in the isolated black hole candidate OGLE-2011-BLG-0462, and in several other putative collapsed objects found with gravitational microlensing. OGLE-2011-BLG-0462 has been recently interpreted as a 7.1 M_sun black hole at a distance of 1.6 kpc, although a different group obtained a mass range (1.6-4.4 M_sun) that cannot exclude a massive neutron star. We have derived upper limits on the flux from OGLE-2011-BLG-0462 of 9$\times10^{-15}$ erg cm$^{-2}$ s$^{-1}$ in the 0.5-7 keV range and $\sim2\times10^{-12}$ erg cm$^{-2}$ s$^{-1}$ in the 17-60 keV range. The implied X-ray luminosity is consistent with the small radiative efficiency expected for a black hole and disfavours a neutron star interpretation. Limits down to a factor about five lower are obtained for the soft X-ray flux of other candidates, but their interpretation is affected by larger uncertainties in the masses, distances and spatial velocities.
description: Accepted for publication on The Astrophysical Journal, 3 figures, 3 tables
Codebooks for 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets'
Creators: name: Yuvaraj, Joshua
name: Giblin, Rebecca
name: Russo-Batterham, Daniel
name: GRANT, GENEVIEVE
Publisher: name: University of Melbourne
Year: 2021
Subjects: Intellectual property law

description: These are the codebooks used to extract, construct, and analyse the datasets in Yuvaraj, J., Giblin, R., Russo-Batterham, D., & Grant, G. 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (accepted for publication in the Journal of Empirical Legal Studies).
They were written in Jupyter notebooks using the Python programming language. We also used the numpy, pandas, and matplotlib packages.
The codebooks are intended to be read sequentially, so later notebooks will only have instructions that have not already been set out. While every effort has been made to ensure the notebooks are user-friendly, users are encouraged to contact the corresponding author at joshua.yuvaraj@unimelb.edu.au if any questions arise.
Spectral Behaviour and Flaring Activity of II Peg in the Ultraviolet
Creators: name: Sanad, M. R
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have investigated the spectral behaviour of II Peg binary system in the ultraviolet band by using International Ultraviolet Explorer observations over fifteen years. The ultraviolet observations show indication of flare activity in the chromosphere and transition region with their enhanced spectral lines. Before and after the flare activity the ultraviolet spectral lines show low, intermediate and high flux. The spectral behaviour is compared with previous studies. We detect prominent flare activity in three years. Before and after this period there is a gradual clear decrease in the level of activity. The reddening of II Peg was estimated from the 2200 Angstrom absorption feature. We determined the mean rate of mass loss and the ultraviolet luminosity. We attributed the spectral variations to a cyclic behaviour of the underlying magnetic dynamo and the prominent activity can be interpreted by the model of two ribbon flare.
description: 15 pages - 3 Figures - Accepted for publication in the Research in Astronomy and Astrophysics Journal RAA
Codebooks for 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets'
Creators: name: Yuvaraj, Joshua
name: Giblin, Rebecca
name: Russo-Batterham, Daniel
Publisher: name: University of Melbourne
Year: 2021
Subjects: Intellectual property law

description: These are the codebooks used to extract, construct, and analyse the datasets in Yuvaraj, J., Giblin, R., Russo-Batterham, D., & Grant, G. 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (forthcoming in the Journal of Empirical Legal Studies).
 They were written in Jupyter notebooks using the Python programming language. We also used the numpy, pandas, and matplotlib packages.
The codebooks are intended to be read sequentially, so later notebooks will only have instructions that have not already been set out. While every effort has been made to ensure the notebooks are user-friendly, users are encouraged to contact the corresponding author at joshua.yuvaraj@unimelb.edu.au if any questions arise.
The work was supported by an Australian Government Research Training Program (RTP) Scholarship, the Monash University Graduate Excellence Scholarship, and a Monash University Faculty of Law Top-Up Scholarship, funded by an ARC Future Fellowship provided to Associate Professor Rebecca Giblin (FT170100011).
Rotational Variation Allows for Narrow Age Spread in the Extended Main Sequence Turnoff of Massive Cluster NGC 1846
Creators: name: Lipatov, Mikhail
name: Brandt, Timothy D.
name: Gossage, Seth
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The color-magnitude diagrams (CMDs) of intermediate-age star clusters (less than ~ 2 Gyr) are much more complex than those predicted by coeval, nonrotating stellar evolution models. Their observed extended main sequence turnoffs (eMSTOs) could result from variations in stellar age, stellar rotation, or both. The physical interpretation of eMSTOs is largely based on the complex mapping between stellar models -- themselves functions of mass, rotation, orientation, and binarity -- and the CMD. In this paper, we compute continuous probability densities in three-dimensional color, magnitude, and vsini space for individual stars in a cluster's eMSTO, based on a rotating stellar evolution model. These densities enable the rigorous inference of cluster properties from a stellar model, or, alternatively, constraints on the stellar model from the cluster's CMD. We use the MIST stellar evolution models to jointly infer the age dispersion, the rotational distribution, and the binary fraction of the Large Magellanic Cloud cluster NGC 1846. We derive an age dispersion of ~ 70-80 Myr, approximately half the earlier estimates due to nonrotating models. This finding agrees with the conjecture that rotational variation is largely responsible for eMSTOs. However, the MIST models do not provide a satisfactory fit to all stars in the cluster and achieve their best agreement at an unrealistically high binary fraction. The lack of agreement near the main-sequence turnoff suggests specific physical changes to the stellar evolution models, including a lower mass for the Kraft break and potentially enhanced main sequence lifespans for rapidly rotating stars.
description: 34 pages, 13 figures, ApJ accepted. Python code is available at https://github.com/mlipatov/calc_cluster
The variability behavior of NGC 925 ULX-3
Creators: name: Earnshaw, Hannah P.
name: Brightman, Murray
name: Harrison, Fiona A.
name: Heida, Marianne
name: Jaodand, Amruta
name: Middleton, Matthew J.
name: Roberts, Timothy P.
name: Walton, Dominic J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the results of a 2019-2021 monitoring campaign with Swift and associated target-of-opportunity observations with XMM-Newton and NuSTAR, examining the spectral and timing behavior of the highly variable ultraluminous X-ray source (ULX) NGC 925 ULX-3. We find that the source exhibits a 127-128 day periodicity, with fluxes typically ranging from 1e-13 to 8e-13 ergs/s/cm2. We do not find strong evidence for a change in period over the time that NGC 925 ULX-3 has been observed, although the source may have been in a much lower flux state when first observed with Chandra in 2005. We do not detect pulsations, and we place an upper limit on the pulsed fraction of ~40% in the XMM-Newton band, consistent with some previous pulsation detections at low energies in other ULXs. The source exhibits a typical ULX spectrum that turns over in the NuSTAR band and can be fitted using two thermal components. These components have a high temperature ratio that may indicate the lack of extreme inner disk truncation by a magnetar-level magnetic field. We examine the implications for a number of different models for superorbital periods in ULXs, finding that a neutron star with a magnetic field of ~10^12 G may be plausible for this source. The future detection of pulsations from this source would allow for the further testing and constraining of such models.
description: 13 pages, 6 figures, 2 tables. Accepted for publication in ApJ
CYBERSECURITY INDUSTRY NEEDS AND THE CSEC ABET CURRICULUM ANALYSIS
Creators: name: Bates, Sienna J
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Cybersecurity and privacy not elsewhere classified

description: In the recent years, companies in the IT/cybersecurity industry have expressed their concerns about the lack of knowledge entry level cybersecurity employees are experiencing after graduating from a four-year cybersecurity program. Organizations such as National Initiative for Cybersecurity Education (NICE) which is led by the National Institute of Standards and Technology (NIST) provides a framework to map certain knowledge, skills, and tasks that have provided a way for universities to build their cybersecurity course curriculums. By following this framework at the competency level, it can be used to ensure students are adequately prepared for industry level jobs upon graduation from a four-year cybersecurity program.The goal of this study was to explore if there are gaps in terms of workforce development for cybersecurity competencies that graduates from ABET-accredited four-year bachelor’s cybersecurity -IT programs (Degrees and Majors) have? For this research, therewere three phases: a gap analysis, a survey, and a comparison. A gap analysis was conducted to assess the current cybersecurity curriculum for Purdue University’s undergraduate four-year program. The survey was conducted amongst a list of companies, obtained from Purdue University’s Center for Career Opportunities (CCO) who have previously hired students from the four-year cybersecurity program in the Polytechnic Institute. Finally,a comparison was done toshow what the gap analysis was, what was originally thought to be missing from the current curriculum, what industry said was missing, what was the same and what was different.Ithas been determined that a gap does exist, and this survey's results concluded there were three common issues with hiring newcybersecurity talent as well as identified what competencies wereoriginally thought to be missing based on the gap analysis and the industry survey. Also, while industry certifications are not required to secure entry level positions at the companies whoresponded to the survey, they certainly are preferred.This research can help make students from the four-year undergraduate cybersecurity program at Purdue University be more competitive when applying for entry-level cybersecurity industry positions upongraduation.
Codebooks for 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets'
Creators: name: Yuvaraj, Joshua
name: Giblin, Rebecca
name: Russo-Batterham, Daniel
name: GRANT, GENEVIEVE
Publisher: name: University of Melbourne
Year: 2021
Subjects: Intellectual property law

description: These are the codebooks used to extract, construct, and analyse the datasets in Yuvaraj, J., Giblin, R., Russo-Batterham, D., & Grant, G. 'U.S. Copyright Termination Notices 1977-2020: Introducing New Datasets' (accepted for publication in the Journal of Empirical Legal Studies). They were written in Jupyter notebooks using the Python programming language. We also used the numpy, pandas, and matplotlib packages.
The codebooks are intended to be read sequentially, so later notebooks will only have instructions that have not already been set out. While every effort has been made to ensure the notebooks are user-friendly, users are encouraged to contact the corresponding author at joshua.yuvaraj@unimelb.edu.au if any questions arise.
The work was supported by an Australian Government Research Training Program (RTP) Scholarship, the Monash University Graduate Excellence Scholarship, and a Monash University Faculty of Law Top-Up Scholarship, funded by an ARC Future Fellowship provided to Associate Professor Rebecca Giblin (FT170100011).
Vanda malipoensis L. H. Zou, J. X. Huang & Z. J. Liu. A. Flowering 2014, sp. nov.
Creators: name: Zou, Long-Hai
name: Liu, Zhong-Jian
name: Huang, Jiu-Xiang
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Vanda
Vanda malipoensis

description: Vanda malipoensis L.H.Zou, J.X.Huang & Z.J.Liu, sp. nov. (NJDZ坡万代兰) (Figs. 3, 4).
Diagnosis: This new species is related to V. christensoniana and V. nana. It differs from V. christensoniana by having 4–6 cm long inflorescences with sparse flowers that are almost 50% smaller with a shorter column (2.5–3.0 mm) and spur (7.0– 7.5 mm) and caudiculate pollinia sitting in a dorsal position on the stipe. It can be distinguished from V. nana by its longer inflorescence, widely opening and larger flowers and erect lateral lobes of the lip.
Type:–– China. Yunnan (云南): Malipo (NJDZ 坡), epiphytic on tree trunks in forests; 30 June 2014, Liu 6644 (holotype: NOCC!).
Epiphytic herbs with erect stems to 50–150 mm, 3–5 mm in diameter. Leaves distichous, slightly V-shaped in cross section, green, 100–200 × 5–7 mm, apex truncate and unequally 3–4-dentate, base sheathing and jointed. Inflorescences axillary, ascending, 40–60 mm long with 7–12 flowers per inflorescence; floral bracts ovate-triangular, 1.0– 1.5 mm. Flowers white, tinged with pink, opening widely; pedicel and ovary 10–12 mm. Dorsal sepal elliptic, 8.0–9.0 × 3.5–4.0 mm, obtuse; lateral sepals obliquely elliptic, 7.5–8.5 × 4.0– 4.5 mm, apex acute; petals obovate-elliptic, 8.0–9.0 × 3.0– 3.5 mm, acute; lip spurred, trilobed, spotted with purple on the entrance of spur; lateral lobes subtriangular, erect, 1.5–1.8 × 0.8–1.0 mm; midlobe ligulate, 3.0–3.5 × 1.2–1.5 mm, obtuse, with an emarginate basal callus; spur clavatecylindrical, 7.0– 7.5 mm, contracted at middle, apex dilated. Column 2.5–3.0 mm, foot absent; rostellum emarginate, lobes sharp; anther cap dark purple; pollina 2, globose, waxy, caudiculate, each cleft on the apex, attached by the stipe to a viscidium.
Flowering period:—June.
Distribution and habitat:— Vanda malipoensis is epiphytic on tree trunks in forests, known so far only from Malipo, Yunnan Province, China.
Etymology:—The species epithet refers to the locality where this new species has been found so far.
Conservation status:—Within 10 km-radius around the type locality, our survey crew searched 18 locations for V. malipoensis. Only two of the 18 locations were found to contain the new species. Including the type locality, nine, seven and six individuals were found, respectively. The three sites were more than 2 km apart from each other. Using the World Conservation Union Red List Categories and Criteria (IUCN, 2012), V. malipoensis should be preliminarily treated as critically endangered (CR B 2ab).
description: Published as part of Zou, Long-Hai, Liu, Zhong-Jian & Huang, Jiu-Xiang, 2014, Vanda malipoensis, a new species of Vanda (Orchidaceae: Epidendroideae; Vandeae) from China: evidence from morphological and molecular phylogenetic analyses, pp. 87-96 in Phytotaxa 186 (2) on pages 94-95, DOI: 10.11646/phytotaxa.186.2.3, http://zenodo.org/record/5146967
Improving Disability Employment Study: Participant Report
Creators: name: Dimov, Stefanie
Publisher: name: University of Melbourne
Year: 2021
Subjects: Occupational and workplace health and safety

description: The aim of IDES was to hear from people with disabilities about their experiences of work and engaging with Disability Employment Services (DES). This is the participant report outlining the findings from the second wave of the study.
Improving Disability Employment Study: Easy English Participant Report
Creators: name: Dimov, Stefanie
Publisher: name: University of Melbourne
Year: 2021
Subjects: Occupational and workplace health and safety

description: The aim of IDES was to hear from people with disabilities about their experiences of work and engaging with Disability Employment Services (DES). This is the Easy English participant report outlining the findings from the second wave of the study.
Spatial distribution of dark matter in and around galaxy clusters traced by galaxies, gas and intracluster stars in a simulated universe
Creators: name: Shin, Jihye
name: Lee, Jong Chul
name: Hwang, Ho Seong
name: Song, Hyunmi
name: Ko, Jongwan
name: Smith, Rory
name: Kim, Jae-Woo
name: Yoo, Jaewon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To understand how well galaxies, gas and intracluster stars trace dark matter in and around galaxy clusters, we use the IllustrisTNG cosmological hydrodynamical simulation and compare the spatial distribution of dark matter with those of baryonic components in clusters. To quantify the global morphology of the density distribution of each component in clusters, we fit an ellipse to the density contour of each component and derive shape parameters at different radii. We find that ellipticity of dark matter is better correlated with that of galaxy mass-weighted number density, rather than with that of galaxy number density or galaxy velocity dispersion. We thus use the galaxy mass-weighted number density map as a representative of the galaxy maps. Among three different density maps from galaxies, gas, and intracluster stars, the ellipticity of dark matter is best reproduced by that of the galaxy map over the entire radii. The 'virialized' galaxy clusters show a better correlation of spatial distribution between dark matter and other components than the 'unvirialized' clusters, suggesting that it requires some time for each component to follow the spatial distribution of dark matter after merging events. Our results demonstrate that galaxies are still good tracers of dark matter distribution even in the non-linear regime corresponding to the scales in and around galaxy clusters, being consistent with the case where galaxies trace well the matter distribution in cosmologically large scales.
description: accepted for publication in ApJ
Driving Change : How Road Improvement Shapes Female Educational Attainment in the Democratic Republic of Congo
Creators: name: Hertrich, Chloé
Publisher: name: Zenodo
Year: 2025
Subjects: Education
Urbanization
Economics

description: In the Democratic Republic of Congo (DRC), less than 40% of girls completed lower secondary education in 2018. This paper investigates how improved road can enhanced educational opportunities for girls in the DRC. The study employs a Difference-in- Difference (DiD) approach to assess the impact of the improvement of the National Road n°1 on girl’s educational outcomes. The findings reveal that road improvement significantly boost secondary school completion for girls. However, no notable impact on primary school completion is induced. The mechanisms suggests a spatial sorting of educated individuals around the minimal distance to the road threshold with decreasing commute costs and a trade-off between job opportunities and investment in human capital.
Improving Disability Employment Study (IDES): Wave 1 Findings
Creators: name: Dimov, Stefanie
name: MILNER, ALLISON
name: BYARS, SEAN
name: Devine, Alexandra
name: KAVANAGH, ANNE
Publisher: name: University of Melbourne
Year: 2021
Subjects: Occupational and workplace health and safety

description: This report documents findings from the first survey completed with jobseekers with disability as part of the Improving Disability Employment Study (IDES). This report is produced by researchers in the Disability and Health Unit at the University of Melbourne. IDES is an Australian project with the aim to build knowledge and gather evidence about barriers to work for people with disability and experiences of the Australian government-funded Disability Employment Services (DES) program. IDES is funded by an Australian Research Council (ARC) Linkage grant.
StrayCats II: An Updated Catalog of NuSTAR Stray Light Observations
Creators: name: Ludlam, R. M.
name: Grefenstette, B. W.
name: Brumback, M. C.
name: Tomsick, J. A.
name: Buisson, D. J. K.
name: Coughenour, B. M.
name: Mastroserio, G.
name: Wik, D.
name: Krivonos, R.
name: Jaodand, A. D.
name: Madsen, K. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an updated catalog of StrayCats (a catalog of NuSTAR stray light observations of X-ray sources) that includes nearly 18 additional months of observations. StrayCats v2 has an added 53 sequence IDs, 106 rows, and 3 new identified stray light (SL) sources in comparison to the original catalog. The total catalog now has 489 unique sequence IDs, 862 entries, and 83 confirmed StrayCats sources. Additionally, we provide new resources for the community to gauge the utility and spectral state of the source in a given observation. We have created long term light curves for each identified SL source using MAXI and Swift/BAT data when available. Further, source extraction regions for 632 identified SL observations were created and are available to the public. In this paper we present an overview of the updated catalog and new resources for each identified StrayCats SL source.
description: Accepted for publication in ApJ, 6 pages, 5 figures, 1 table
Slowly cooling white dwarfs in NGC 6752
Creators: name: Chen, J.
name: Ferraro, F. R.
name: Cadelano, M.
name: Salaris, M.
name: Lanzoni, B.
name: Pallanca, C.
name: Althaus, L. G.
name: Cassisi, S.
name: Dalessandro, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recently, a new class of white dwarfs (``slowly cooling WDs'') has been identified in the globular cluster M13. The cooling time of these stars is increased by stable thermonuclear hydrogen burning in their residual envelope. These WDs are thought to be originated by horizontal branch (HB) stars populating the HB blue tail, which skipped the asymptotic giant branch phase. To further explore this phenomenon, we took advantage of deep photometric data acquired with the Hubble Space Telescope in the near-ultraviolet and investigate the bright portion of the WD cooling sequence in NGC 6752, another Galactic globular cluster with metallicity, age and HB morphology similar to M13. The normalized WD luminosity function derived in NGC 6752 turns out to be impressively similar to that observed in M13, in agreement with the fact that the stellar mass distribution along the HB of these two systems is almost identical. As in the case of M13, the comparison with theoretical predictions is consistent with $\sim 70\%$ of the investigated WDs evolving at slower rates than standard, purely cooling WDs. Thanks to its relatively short distance from Earth, NGC 6752 photometry reaches a luminosity one order of a magnitude fainter than the case of M13, allowing us to sample a regime where the cooling time delay, with respect to standard WD models, reaches $\sim 300$ Myr. The results presented in this paper provide new evidence for the existence of slowly cooling WDs and further support to the scenario proposing a direct causal connection between this phenomenon and the horizontal branch morphology of the host stellar cluster.
description: 14 pages, 9 figures, accepted for publication in ApJ
General Framework for Reversible Data Hiding in Texts Based on Masked Language Modeling
Creators: name: Zheng, Xiaoyan
name: Fang, Yurun
name: Wu, Hanzhou
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: With the fast development of natural language processing, recent advances in information hiding focus on covertly embedding secret information into texts. These algorithms either modify a given cover text or directly generate a text containing secret information, which, however, are not reversible, meaning that the original text not carrying secret information cannot be perfectly recovered unless much side information are shared in advance. To tackle with this problem, in this paper, we propose a general framework to embed secret information into a given cover text, for which the embedded information and the original cover text can be perfectly retrieved from the marked text. The main idea of the proposed method is to use a masked language model to generate such a marked text that the cover text can be reconstructed by collecting the words of some positions and the words of the other positions can be processed to extract the secret information. Our results show that the original cover text and the secret information can be successfully embedded and extracted. Meanwhile, the marked text carrying secret information has good fluency and semantic quality, indicating that the proposed method has satisfactory security, which has been verified by experimental results. Furthermore, there is no need for the data hider and data receiver to share the language model, which significantly reduces the side information and thus has good potential in applications.
description: https://scholar.google.com/citations?user=IdiF7M0AAAAJ&hl=en
Flaring-associated Complex Dynamics in Two M-dwarfs Revealed by Fast, Time-resolved Spectroscopy
Creators: name: Wang, J.
name: Li, H. L.
name: Xin, L. P.
name: Li, G. W.
name: Bai, J. Y.
name: Gao, C.
name: Ren, B.
name: Song, D.
name: Deng, J. S.
name: Han, X. H.
name: Dai, Z. G.
name: Liang, E. W.
name: Wang, X. Y.
name: Wei, J. Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Habitability of an exoplanet is believed to be profoundly affected by activities of the host stars, although the related coronal mass ejections (CMEs) are still rarely detected in solar-like and late-type stars. We here report an observational study on flares of two M-dwarfs triggered by the high-cadence survey performed by the Ground Wide-angle Camera system. In both events, the fast, time-resolved spectroscopy enables us to identify symmetric broad H$α$ emission with not only a nearly zero bulk velocity, but also a large projected maximum velocity as high as $\sim700-800\ \mathrm{km\ s^{-1}}$. This broadening could be resulted from either Stark (pressure) effect or a flaring-associated CME at stellar limb. In the context of the CME scenario, the CME mass is estimated to be $\sim4\times10^{18}$ g and $2\times10^{19}$ g. In addition, our spectral analysis reveals a temporal variation of the line center of the narrow H$α$ emission in both events. The variation amplitudes are at tens of $\mathrm{km\ s^{-1}}$, which could be ascribed to the chromospheric evaporation in one event, and to a binary scenario in the other one. With the total flaring energy determined from our photometric monitor, we show a reinforced trend in which larger the flaring energy, higher the CME mass is.
description: 15 pages, 10 figures and 3 tables. Accepted by ApJ. arXiv admin note: text overlap with arXiv:2106.04774
Thai Herbs: The Potential Application in Adjunctive Periodontal Therapy
Creators: name: Mathurasai, Widhunya
name: Phoolcharoen, Waranyoo
name: Sooampon, Sireerat
Publisher: name: The Dental Association of Thailand
Year: 2018
Subjects: Thai herbs, Periodontal disease, Anti-periodontal pathogen, Anti-inflammation

description: Journal of The Dental Association of Thailand, 68, 1
The Usage of Oral Appliance for Maintaining Jaw Position in Hemimandibulectomy Patient: A Case Report
Creators: name: Uma, Uthai
name: Norabhoompipat, Seechompoo
name: Vanichanon, Phanomporn
name: Mutirangura, Wantanee
Publisher: name: The Dental Association of Thailand
Year: 2018
Subjects: Oral appliance, Occlusal splint, Hemimandibulectomy, Mandibular deviation

description: Journal of The Dental Association of Thailand, 68, 1
A Massive, Dusty HI-Absorption-Selected Galaxy at $z \approx 2.46$ Identified in a CO Emission Survey
Creators: name: Kaur, Balpreet
name: Kanekar, Nissim
name: Revalski, Mitchell
name: Rafelski, Marc
name: Neeleman, Marcel
name: Prochaska, J. Xavier
name: Walter, Fabian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report a NOrthern Extended Millimeter Array (NOEMA) and Atacama Large Millimeter/submillimeter Array (ALMA) search for redshifted CO emission from the galaxies associated with seven high-metallicity ([M/H] $\geq -1.03$) damped Lyman-$α$ absorbers (DLAs) at $z\approx1.64-2.51$. Our observations yielded one new detection of CO(3-2) emission from a galaxy at $z=2.4604$ using NOEMA, associated with the $z=2.4628$ DLA towards QSO B0201+365. Including previous searches, our search results in detection rates of CO emission of $\approx56^{+38}_{-24}$ % and $\approx11^{+26}_{-9}$ %, respectively, in the fields of DLAs with ${\rm [M/H]}>-0.3$ and ${\rm [M/H]}<-0.3$. Further, the HI-selected galaxies associated with five DLAs with [M/H] $>-0.3$ all have high molecular gas masses, $\gtrsim5\times10^{10}\ {\rm M}_\odot$. This indicates that the highest-metallicity DLAs at $z\approx2$ are associated with the most massive galaxies. The newly-identified $z\approx2.4604$ HI-selected galaxy, DLA0201+365g, has an impact parameter of $\approx7$ kpc to the QSO sightline, and an implied molecular gas mass of $(5.04\pm0.78) \times10^{10}\times(α_{\rm CO}/4.36)\times(r_{31}/0.55)\ {\rm M}_\odot$. Archival Hubble Space Telescope Wide Field and Planetary Camera 2 imaging covering the rest-frame near-ultraviolet (NUV) and far-ultraviolet (FUV) emission from this galaxy yield non-detections of rest-frame NUV and FUV emission, and a $5σ$ upper limit of 2.3 M$_\odot$ yr$^{-1}$ on the unobscured star formation rate (SFR). The low NUV-based SFR estimate, despite the very high molecular gas mass, indicates that DLA0201+365g either is a very dusty galaxy, or has a molecular gas depletion time that is around two orders of magnitude larger than that of star-forming galaxies at similar redshifts.
description: 9 pages, 3 figures, 2 tables. Accepted for publication in ApJ
Natural history predicts patterns of thermal vulnerability in amphibians from the Atlantic rainforest of Brazil_supporting information
Creators: name: Carilo Filho, Leildo Machado
Publisher: name: Zenodo
Year: 2022
Subjects: Ecophysiology and Zoology
Critical thermal maximum (CTmax)
deforestation
Future Vulnerability
warming tolerance
tropical amphibians

description: In the Brazilian Atlantic Rainforest (AF), amphibians (625 species) face habitat degradation leading to stressful thermal conditions that constrain animal activity (e.g. foraging, reproduction). Data on thermal ecology for these species is still scarce. We tested the hypothesis that environmental occupation affects the thermal tolerance of amphibian species more than their phylogenetic relationships. We evaluated patterns of thermal tolerance of 47 amphibian species by assessing critical thermal maxima and warming tolerances, relating these variables with ecological covariates (e.g. adult macro- and microhabitat and site of larval development). We used mean and maximum environmental temperature, ecological covariates, and morphological measurements in the phylogenetic generalized least squares models selection to evaluate which traits better predict thermal tolerance. We did not recover phylogenetic signal under a Brownian model; our results point to a strong association between critical thermal maxima and habitat and development site. Forest species were less tolerant to warm temperatures than open area or generalist species. Species with larvae that develop in lentic environment were more tolerant than those from lotic ones. Thus, species inhabiting forest microclimates are more vulnerable to the synergistic effect of habitat loss and climatic change. We use radar charts as a quick evaluation tool for thermal risk diagnoses using aspects of natural history as axes.
Effect of Different Surface Treatment Methods on Shear Bond Strength of Orthodontic Metal Brackets to Four Provisional Restorative Materials
Creators: name: Banrai, Marut
name: Tansalarak, Ratchawan
name: Chimruang, Jutharat
name: Pipatphatsakorn, Mayurach
Publisher: name: The Dental Association of Thailand
Year: 2018
Subjects: Bracket, Provisional restoration, Shear bond strengt, Surface treatment

description: Journal of The Dental Association of Thailand, 68, 1
Geometry of Interaction for ZX-Diagrams
Creators: name: Chardonnet, Kostia
name: Valiron, Benoît
name: Vilmart, Renaud
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: ZX-Calculus is a versatile graphical language for quantum computation equipped with an equational theory. Getting inspiration from Geometry of Interaction, in this paper we propose a token-machine-based asynchronous model of both pure ZX-Calculus and its extension to mixed processes. We also show how to connect this new semantics to the usual standard interpretation of ZX-diagrams. This model allows us to have a new look at what ZX-diagrams compute, and give a more local, operational view of the semantics of ZX-diagrams.
Relationship between Facial Alveolar Bone Thickness and Root Position of Maxillary Anterior Teeth Using Cone Beam Computed Tomography
Creators: name: Sirikururat, Papatpong
name: Benjasupattananan, Supranee
Publisher: name: The Dental Association of Thailand
Year: 2018
Subjects: Facial alveolar bone thickness, Root position, Dental cone beam computed tomography, Anterior maxilla

description: Journal of The Dental Association of Thailand, 68, 1
Effect of Fiber Post and Stainless Steel Wire on the Flexural Strength of Repaired Denture Base Acrylic Resin
Creators: name: Somsak, Kwanrutai
name: Boonsiri, Issarawan
name: Kittipanyangam, Jirachaya
name: Phuntusuntorn, Phattarasinee
name: Ngamnusonkit, Janita
name: Saichompoo, Sakulthip
name: Tungtawee, Ansipakorn
name: Visetsiri, Suchanard
name: Saisin, Chalisa
Publisher: name: The Dental Association of Thailand
Year: 2018
Subjects: Denture base repair, Flexural strength, Fiber post, Stainless steel wire

description: Journal of The Dental Association of Thailand, 68, 1
The Effects of Cosmic Rays on the Chemistry of Dense Cores
Creators: name: O'Donoghue, Ross
name: Viti, Serena
name: Padovani, Marco
name: James, Tomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Cosmic rays are crucial for the chemistry of molecular clouds and their evolution. They provide essential ionizations, dissociations, heating and energy to the cold, dense cores. As cosmic rays pierce through the clouds they are attenuated and lose energy, which leads to a dependency on the column density of a system. The detailed effects these particles have on the central regions still needs to be fully understood. Here, we revisit how cosmic rays are treated in the UCLCHEM chemical modeling code by including both ionization rate and H2 dissociation rate dependencies alongside the production of cosmic ray induced excited species and we study in detail the effects of these treatments on the chemistry of pre-stellar cores. We find that these treatments can have significant effects on chemical abundances, up to several orders of magnitude, depending on physical conditions. The ionization dependency is the most significant treatment, influencing chemical abundances through increased presence of ionized species, grain desorptions and enhanced chemical reactions. Comparisons to chemical abundances derived from observations show the new treatments reproduce these observations better than the standard handling. It is clear that more advanced treatments of cosmic rays are essential to chemical models and that including this type of dependency provides more accurate chemical representations.
description: 19 pages, 7 tables, 7 figures