bluuebunny/crossref_metadata_2025_split huggingface dataset:
Austerity and young people’s political attitudes in the UK
Authors: Ladreit Colombe 
Published: June 2023

AbstractThis article studies the impact of the 2012 British austerity policies on youth political attitudes using a difference-in-differences. The study achieves this by combining longitudinal survey data from “Understanding Society” with a district-level estimate of the austerity shock that each individual faced between the years 2013 and 2015. The findings indicate that the welfare cuts had a negative impact on the political efficacy of young people, as they were more inclined to believe that public officials did not care about them and that they had no say in the actions of the government. Additionally, their satisfaction with politics, as determined by their perceived level of political influence, also decreased. Overall, the results suggest that the implementation of austerity measures increased the likelihood of political disenfranchisement among young people in Britain.
A Three-Body Problem: The effects of foreign language anxiety, enjoyment, and boredom on academic achievement
Authors: Dewaele Jean-Marc , Botes Elouise , Meftah Rachid 
Published: June 2023

AbstractThis study is part of a growing wave of interest in foreign language (FL) learners’ emotions, their sources, and their effects. Previous studies have confirmed that there is a clear relationship between the emotions offoreign language enjoyment(FLE),foreign language classroom anxiety(FLCA),foreign language boredom(FLB), and foreign language performance. However, the relative importance of each emotion as a predictor of FL performance has yet to be examined, and as different teaching and learning strategies can elicit different emotions, it is difficult to determine whether FL teachers and learners should prioritize a specific emotion in course design and study. We, therefore, utilized structural equation modeling and latent dominance analysis on a sample of 502 Moroccan EFL learners in order to examine the relative importance of each emotion in predicting FL performance. We argue that it is crucial to use sophisticated statistical analyses and to collect samples from outside Western, educated, industrialized, rich, and democratic (WEIRD) countries. The latent dominance analysis revealed that FLCA had the strongest (negative) effect on English test scores. FLB had a significant—but slightly weaker—negative effect and FLE had a significant—but weaker still—positive effect. As such, it is vital that FL teachers and learners not underestimate the impact of anxiety on language learning.
Like student like teacher? Taking a closer look at language teacher anxiety
Authors: Goetze Julia 
Published: June 2023

AbstractThis article takes a comparative look at language teacher anxiety (LTA) vis-à-vis students’ language classroom anxiety (LCA) and contends the benefit of pursuing and expanding LTA research. Specifically, the paper first traces the development of LTA inquiry from its inception in the 1990s until today and highlights how it historically aligned with and, more recently, diverges from LCA research. After establishing LTA as an idiosyncratic variable in instructed language learning and teaching contexts, I grapple with the questions of whether and why LTA merits further research attention and suggest that the pursuit of LTA research is not only beneficial to examine the role of teachers’ emotions in instructed language learning but also for the advancement of three other flourishing domains in the field of second language acquisition (SLA). These include the diversification of theoretical frameworks through which language classroom emotions can be examined, the advancement of research methodologies, and the role of emotions in social justice-centered approaches to language teaching (e.g., pedagogies of discomfort).
Rethinking the Rethinking of Legal Pluralism: Toward a Manifesto for a Pluri-Legal Perspective
Authors: Shahar Ido , Yefet Karin Carmit 
Published: June 2023

AbstractThe paper addresses the perpetual discontent evoked by the concept of legal pluralism, one which, in turn, brings about incessant efforts to “rethink” it. We suggest that one of the sources of this discontent is the erroneous view that legal pluralism is a theory, and the consequent misguided expectations that it should provide scholars of law and society with causal hypotheses and explanations. We argue that legal pluralism is not a theory but a research perspective, and, as such, is not meant to provide us with explanatory propositions, but rather to increase our awareness of the plurality and inter-relationality of socio-legal spheres and of the implications thereof. We further identify—and briefly discuss—the four core principles of a pluri-legal perspective: plurality, relationality, power, and agency. Taken together, these four premises constitute a manifesto of sorts for a pluri-legal perspective.
Molecular Clouds with CO-dark Envelopes in the Extended Ultraviolet (XUV) Disk of M83
Authors: Koda Jin 
Published: June 2023

AbstractWe report a CO(3-2) detection of 23 molecular clouds in the extended ultraviolet (XUV) disk of the spiral galaxy M83 with ALMA. The observed 1 kpc2 region is at about 1.24R25 from the disk center, where CO(2-1) was previously not detected. The detection and non-detection, as well as the level of star formation (SF) activity in the region, can be explained consistently if the clouds have the mass distribution common among Galactic clouds, such as Orion A – with star-forming dense clumps embedded in thick layers of bulk molecular gas, but in a low-metallicity regime where their outer layers are CO-deficient and CO-dark. The cloud masses, estimated from CO(3-2), range from 8.2×102 to 2.3×104M⊙. The most massive clouds appear similar to Orion A in SF activity as well as in gas mass. The common cloud mass structure also justifies the use of high-J CO transitions to trace the total gas mass of clouds, or galaxies, even in the high-z universe. This study is the first demonstration that CO(3-2) is an efficient tracer of molecular clouds even in low-metallicity environments. This study is published in the Astronomical Journal, entitled “First Detection of the Molecular Cloud Population in the Extended Ultraviolet (XUV) Disk of M83" by J. Koda, L. Watson, F. Combes, M. Rubio, S. Boissier, M. Yagi, D. Thilker, A. M Lee, Y. Komiyama, K. Morokuma-Matsui, and C. Verdugo.
Gas-Star Formation Cycle in Nearby Galaxies
Authors: Pan Hsi-An , Schinnerer Eva , Hughes Annie , Leroy Adam , Groves Brent ,   The PHANGS Team
Published: June 2023

AbstractStar formation, from cold giant molecular clouds to diverse population of stars, is a complex process involving a wide variety of physical processes. In this work, we constrain the link between the gas-star formation cycle and several secular and environmental probe of galaxies. Specifically, we quantify the spatial correlation between molecular gas and star-forming regions for 49 nearby galaxies using the ALMA and narrowband-Hα imaging from the PHANGS survey. At the resolution (150 pc) at which the individual molecular clouds and star-forming regions can be identified, we find that molecular clouds and star-forming regions do not necessarily coexist. The decoupled molecular clouds and star-forming regions are a signature of evolutionary cycling and feedback of the star formation process. Therefore, the impact of galactic-scale conditions and environments must be considered for a complete understanding of how stars form in galaxies and how this process influences the evolution of the host galaxies.
Formation of the Stellar System and the Central Gravitation-Potential Vessel of Galaxies
Authors: Kodaira Keiichi , Kalinova Veselina 
Published: June 2023

AbstractThe formation of the global stellar system of galaxies are studied through the circular velocity curves of CALIFA nearby galaxies by sequencing the depth and size of the central gravitation-potential vessel and its dynamical mass, relative to the masses of the stellar system and of the parent halo, with the population or age parameters, to explore the dynamical characteristics of the dissipative contracting baryonic matter.
The local and global relations between Σ*, ΣSFR and Σmol that regulate star-formation
Authors: Sánchez Sebastián F. , Gómez Medina Daysi C. , Barrera-Ballesteros J.K. , Galbany L. , Bolatto A. , Wong T. 
Published: June 2023

AbstractStar-formation is one of the main processes that shape galaxies, defining its stellar population and metallicity production and enrichment. It is nowadays known that this process is ruled by a set of relations that connect three parameters: the molecular gas mass, the stellar mass and the star-formation rate itself. These relations are fulfilled at a wide range of scales in galaxies, from galaxy wide to kpc-scales. At which scales they are broken, and how universal they are (i.e., if they change at different scales or for different galaxy types) it is still an open question. We explore here how those relations compare at different scales using as proxy the new analysis done using Integral Field Spectroscopy data and CO observations data from the EDGE-CALIFA survey and the AMUSSING++ compilation.
The cold gas supply through cosmic time: insights on the galaxy assembly at early epochs
Authors: Aravena Manuel 
Published: June 2023

Abstract.Remarkable progress has been made in the last few years in understanding the global properties of galaxies and how they evolve through cosmic time. Major focus has been given to studies of how the availability of molecular gas regulates star-forming activity and galaxy growth, the eventual quenching of star formation, and how these mechanisms evolve through cosmic time. Most of these advances have been made thanks to ALMA and the upgraded capabilities of NOEMA. In this contribution, I briey review the latest constraints on the molecular gas content based on dierent tracers of the interstellar medium (ISM; dust continuum and CO, [CI] and [CII] line emission), including recent determinations of the molecular gas fraction, gas depletion timescales, and molecular gas cosmic density provided by the recent ALMA programs out to z ∼ 7. Finally, I concentrate on recent and ongoing studies aiming to spatially and kinematically resolve the cold ISM and star formation activity down to kpc scales in galaxies out to z ∼ 6 – 7, which represent an unprecedented view of the galaxy assembly and feedback processes in the early universe.
The dust properties of star-forming galaxies in the first billion years
Authors: da Cunha Elisabete 
Published: June 2023

AbstractThe Atacama Large Millimetre/Sub-millimetre Array (ALMA) is obtaining the deepest observations of early galaxies ever achieved at (sub-)millimetre wavelengths, and detecting the dust emission of young galaxies in the first billion years of cosmic history, well in the epoch of reionization. Here I review some of the latest results from these observations, with special focus on the REBELS large programme, which targets a sample of 40 star-forming galaxies at z ⋍ 7. ALMA detects significant amounts of dust in very young galaxies, and this dust might have different properties to dust in lower-redshift galaxies. I describe the evidence for this, and discuss theoretical/modelling efforts to explain the dust properties of these young galaxies. Finally, I describe two additional surprising results to come out of the REBELS survey: (i) a new population of completely dust-obscured galaxies at z ⋍ 7, and (ii) the prevalence of spatial offsets between the ultraviolet and infrared emission of UV-bright, high-redshift star-forming galaxies.
The Extragalactic Database for Galaxy Evolution (EDGE)
Authors: Wong Tony , Cao Yixian , Luo Yufeng , Bolatto Alberto D. , Sánchez Sebastián F. ,   the EDGE-CALIFA Collaboration
Published: June 2023

AbstractThe EDGE-CALIFA collaboration has obtained resolved IFU and CO spectroscopy for 126 nearby galaxies, selected from the CALIFA main sample. We have assembled the spatially resolved products of the survey into Astropy-compatible pixel tables that reduce the oversampling in the original FITS images and facilitate comparison of pixels across different images. By joining these pixel tables to lower dimensional tables that provide profiles, integrated spectra, or global properties, it is possible to investigate the dependence of star formation rate on both local and global conditions. In this short video talk I provide an overview of EDGE, with examples of the use of the database to conduct analysis and generate plots.
Extended neutral hydrogen filamentary network in NGC 2403
Authors: Veronese Simone , de Blok W. J. G. 
Published: June 2023

AbstractWe present new neutral hydrogen (Hi) observations of the nearby galaxy NGC 2403 to determine the nature of a low-column density cloud that was detected earlier by the Green Bank Telescope.We find that this cloud is the tip of a complex of filaments of extraplanar gas that is coincident with the main disk. The total Hi mass of the complex is 2 × 107 M⊙ or 0.6% of the total Hi mass of the galaxy. The main structure, previously referred to as the 8-kpc filament, is now seen to be even more extended, along a 20 kpc stream.
On the H i Content of MaNGA Major Merger Pairs
Authors: Yu Qingzheng , Fang Taotao , Feng Shuai , Zhang Bo , Kevin Xu C. , Wang Yunting , Hao Lei 
Published: June 2023

AbstractTo study the role of H i content in galaxy interactions, we select galaxy pairs and control galaxies from the SDSS-IV MaNGA IFU survey, adopting kinematic asymmetry as a new effective indicator to describe the merger stage. With archival data from the HI-MaNGA survey and new observations from the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we investigate the differences in H i gas fraction (fH i), star formation rate (SFR), and H i star formation efficiency (SFEH i) between pairs and controls. Our results suggest that on average the H i gas fraction of major-merger pairs is marginally decreased by ∼ 15% relative to isolated galaxies, and paired galaxies during pericentric passage show weakly decreased fH i (−0.10 ± 0.05 dex), significantly enhanced SFR (0.42 ± 0.11 dex), and SFEH i (0.48 ± 0.12 dex). We propose the marginally detected H i depletion may originate from the gas consumption in fueling the enhanced H2 reservoir of galaxy pairs.
Exploring the evolution of giant molecular clouds in one of the nearest spiral galaxies M33
Authors: Konishi Ayu , Muraoka Kazuyuki , Tokuda Kazuki , Fujita Shinji , Yamada Rin I. , Demachi Fumika , Tachihara Kengo , Fukui Yasuo , Kobayashi Masato I. N. , Kisetsu Tsuge , Kawamura Akiko , Onishi Toshikazu 
Published: June 2023

AbstractThe evolution of giant molecular clouds (GMCs), which are the main sites of star formation, is essential for unraveling how stars form and how galaxies evolve. We analyzed the M33 CO(J = 2–1) data with spatial resolution of 39 pc obtained by ALMA-ACA 7 m array combined with IRAM 30 m. We identified 736 GMCs and classified them into three types; Type I: associated with no Hii regions, Type II: associated with Hii regions with the Hα luminosity L(Hα) < 1037.5 erg s-1, Type III: associated with Hii regions with L(Hα) > 1037.5erg s-1. We found that mass, size, and velocity dispersion of GMCs slightly increase in the order of Type I, II, and III GMCs. Type III GMCs mainly exist in the spiral arm, while many of Type I and Type II GMCs are distributed in the inter-arm. Assuming that the star formation proceeds steadily, we roughly estimated the total GMC lifetime of 30 Myr.
New era of LSST data: Estimating the physical properties of main-sequence galaxies
Authors: Riccio G. 
Published: June 2023

AbstractThe main goal of the Vera C. Rubin observatory is to perform the 10 year Legacy Survey of Space and Time (LSST). This future state-of-art observatory will open the new window to study billions of galaxies from Local Universe as well as the high redshift objects. In this work we employ simulated LSST observations and uncertainties, based on the 50 385 real galaxies within the redshift range 0 < z < 2.5 from the ELAIS-N1 and COSMOS fields of the Herschel Extragalactic Legacy Project (HELP) survey, to constrain the physical properties of normal star-forming galaxies, such as their star formation rate (SFR), stellar mass (Mstar), and dust luminosity (Ldust). We fit their spectral energy distributions (SEDs) using the Code Investigating GALaxy Emission (CIGALE). The stellar masses estimated based on the LSST measurements agree with the full UV to far-IR SED, while we obtain a clear overestimate of the dust-related properties (SFR, Ldust) estimated with LSST. We investigate the cause of this result and find that it is necessary to employ auxiliary rest-frame mid-IR observations, simulated UV observations, or the far-UV attenuation (AFUV)-Mstar relation to correct for the overestimate.
Diverse Star Formation History in Presence of Cold-Mode Gas Accretion: From Solar Neighborhood to Distant Galaxies
Authors: Noguchi Masafumi 
Published: June 2023

AbstractExistence of cold-mode gas accretion along with the hot-mode accretion of the shock-heated gas can explain the bimodality in the elemental abundance of the Milky Way disk stars as well as the mass-dependence of galaxy morphology represented by mass ratios of thin disks, thick disks, and bulges.
Star Formation History in the Illustris TNG Simulation
Authors: Joó András Péter , Koncz Bendegúz , Pinter Sandor , Tóth L. Viktor 
Published: June 2023

AbstractWe processed the catalogue data for all snapshots of the Illustris TNG100 cosmological simulation and collected every calculated property of the galaxies formed at different redshifts. With this dataset we can statistically analyze parameters for galaxy samples at given redshifts, as well as trace sample parameters over the entire time range of the simulation. Focusing first on star formation rate (SFR) and metallicity, we see the cosmic star formation history with the mean maximum at around z ≈ 1.6 and the reionization bump at around z ≈ 5, while metallicity increases. For a sample of strongly star-forming galaxies with SFR > 10 M⊙ yr−1 we found different characteristics compared to the whole sample. The mean metallicity of highly star-forming galaxies is higher and changes less, and the mean SFR has its maximum at around the reionization bump.
Detectable Anthropogenic Intensification of the Summer Compound Hot and Dry Events Over Global Land Areas
Authors: Pan Rongyun , Li Wei , Wang Qirong , Ailiyaer Aihaiti 
Published: June 2023

AbstractCompound hot and dry events (CHDEs) pose an increasing threat to global warming and have received growing attention in recent decades. We conducted a detection and attribution analysis (D&A) using the optimal fingerprint technique to analyze the changes in observed CHDEs at continental and sub‐continental scales from 1961 to 2014. The responses of CHDEs changes to anthropogenic (ANT), greenhouse gases (GHG), aerosols (AER), and natural (NAT) forcings were obtained from the Coupled Model Intercomparison Project phase 6 forcing experiment. In a two‐signal D&A analysis that considered ANT and NAT simultaneously, ANT signals were robustly detected and separated from NAT in all continental domains and more than 65% of subcontinental domains (29 out of 44 domains). The trend attributed to the ANT forcing is comparable to the observed trend over domains where the ANT signal is detectable. We also conducted a three‐signal D&A analysis that regressed observation onto GHG, AER, and NAT simultaneously. The GHG signals were detectable in all continents except Oceania, and it contributed dominantly to the observed trend over 22 out of 29 regions where ANT signals had emerged. Multivariate biases correction can largely reduce the models' biases in simulating the marginal distribution and the dependence structure, which can provide a more accurate future risk of CDHEs. We found that limiting global warming to 1.5℃ rather than 2.0℃ can significantly mitigate the impact of compound events in most areas of global land, particularly in South America, Africa, and Oceania.
Important Contribution of Bacterial Carbon and Nitrogen to Sinking Particle Export
Authors: Shen Yuan , Guilderson Thomas P. , Chavez Francisco P. , McCarthy Matthew D. 
Published: June 2023

AbstractPhotosynthesis in the surface ocean converts atmospheric CO2 into organic particles, with the fraction sinking to depth representing a major part of the ocean's biological pump. Although sinking particles are known to be altered by attached‐bacteria during transit, most prior organic geochemical data indicated only minor replacement of plankton‐derived particles by bacterial material. We exploit bacteria‐specific biomarkers (d‐amino acids) in a multi‐year sediment trap in the Pacific Ocean (1,200 m) and suggest a different view. Major d‐amino acids were consistently measured at abundance demonstrating widespread accumulation of bacterial material in sinking particles. Bacterial detritus was estimated to account for up to 19% of particulate organic carbon and up to 36% of particulate nitrogen, much higher than cell count‐based values. The bacterial relative contribution increased with decreasing export production. Our results indicate that bacterial material constitutes an underappreciated component of the biological pump, a role expected to rise as the ocean warms.
A Mixed‐Flux‐Based Nodal Discontinuous Galerkin Method for 3D Dynamic Rupture Modeling
Authors: Zhang Wenqiang , Liu Yajing , Chen Xiaofei 
Published: June 2023

AbstractNumerical simulation of rupture dynamics provides critical insights for understanding earthquake physics, while the complex geometry and heterogeneous material properties of natural faults make numerical method development challenging. The discontinuous Galerkin (DG) method is suitable for handling these complexities. In the DG method, the fault boundary conditions can be conveniently imposed through the upwind flux by solving a Riemann problem based on a velocity‐strain elastodynamic equation. However, the universal adoption of upwind flux can cause spatial oscillations in cases where elements on adjacent sides of the fault surface are not nearly symmetric. Here we propose a nodal DG method with an upwind/central mixed‐flux scheme to solve the spatial oscillation problem and thus reduce the dependence on mesh quality. Our method can achieve high scalability in parallel computing under different orders of accuracy. We verify the new method by comparing simulation results with those from other methods on a series of published benchmark problems with complex fault geometries, heterogeneous materials, off‐fault plasticity, roughness, thermal pressurization, and various versions of fault friction laws. Finally, we demonstrate that our method can be applied to simulate the dynamic rupture process of the 2008 Mw 7.9 Wenchuan earthquake along realistic fault geometry, including branches, step‐overs and a previously neglected sub‐parallel fault segment, offering a high potential to systematically explore the influences of fault zone properties on earthquake rupture dynamics.