bluuebunny/crossref_metadata_2025_split huggingface dataset:
Invariant measures of Toeplitz subshifts on non-amenable groups
Authors: CECCHI BERNALES PAULINA , CORTEZ MARÍA ISABEL , GÓMEZ JAIME 
Published: March 2024

AbstractLetGbe a countable residually finite group (for instance,${\mathbb F}_2$) and let$\overleftarrow {G}$be a totally disconnected metric compactification ofGequipped with the action ofGby left multiplication. For every$r\geq 1$, we construct a ToeplitzG-subshift$(X,\sigma ,G)$, which is an almost one-to-one extension of$\overleftarrow {G}$, havingrergodic measures$\nu _1, \ldots ,\nu _r$such that for every$1\leq i\leq r$, the measure-theoretic dynamical system$(X,\sigma ,G,\nu _i)$is isomorphic to$\overleftarrow {G}$endowed with the Haar measure. The construction we propose is general (for amenable and non-amenable residually finite groups); however, we point out the differences and obstructions that could appear when the acting group is not amenable.
Pharmacy Benefit Management: The Cost of Drug Price Rebates
Authors: Robinson James C. 
Published: March 2024

AbstractPharmacy Benefit Managers (PBM) induce drug manufacturers to offer rebates to insurers and employers by denying coverage through formulary exclusions, impeding physician prescription through prior authorization, and reducing patient drug use through cost sharing. As they tighten these access obstacles, PBMs reduce the net prices received by the manufacturers.
Sounds too feminine? Blind tastings, phonetic gender scores, and the impact on professional critics
Authors: Kaimann Daniel , Spiess Bru Clarissa Laura Maria 
Published: March 2024

AbstractWe shed light on assessing product quality in blind tastings and their potential (gender) biases. We study how phonetic traits of grape varieties suggest product attributes in the context of professional reviews. This study aims to close this research gap and analyze how product variety and phonetic name traits affect expert ratings. We obtained data on 18,609 wines and their ratings from Wine Enthusiast Magazine between 1997 and 2016, yielding a sample of 31,058 observations. We suppose that the gender of the taster needs to be considered to understand what affects tastings and ratings, as women and men might be attracted differently to masculine or feminine names. This study shows that masculine names receive higher evaluations than feminine ones. This phonetic gender gap is driven by lower ratings for white wines by female reviewers and lower ratings for red wines by male reviewers. In addition, white wines are rated lower overall by both men and women.
Do presidents favor co-partisan mayors in the allocation of federal grants?
Authors: Ha Heonuk , Jenkins Jeffery A. 
Published: March 2024

Abstract
With the increasing nationalization of politics, federal politicians have interacted more and more with subnational actors. In particular, the president and governing party have provided selective policy and spending benefits to same-party jurisdictions in order to increase their influence in subnational politics. As a significant amount of federal grants is allocated directly to city governments, we analyze the effects of the federal-city relationship in the federal grant process. Specifically, we examine the effects of the president–mayor party alignment on the allocation of federal block and project grants to 568 medium and large cities from 2005 to 2020 using a two-way (city and year) fixed-effects model. We find that the president favors co-partisan mayors in the distribution of federal grants, specifically co-partisan mayors from (a) secure party cities, (b) cities in states where the governor is also a co-partisan, and (c) secure party cities in states where the governor is also a co-partisan. Digging deeper, we find this form of presidential particularism is almost exclusively a Democratic pursuit.
Design and motion mechanism analysis of screw-driven in-pipe inspection robot based on novel adapting mechanism
Authors: Yin Jihua , Liu Xuemei , Wang Youqiang , Wang Yucheng 
Published: March 2024

AbstractIn the pipeline industry, it is often necessary to monitor cracks and damage in pipelines, or need to clean the inside of the pipeline regularly, or collect adhesive on the inner wall of the pipe, but the pipe is too narrow and difficult for humans to enter, it is necessary to use a pipe machine to complete the work. In this paper, a newly designed screw-driven in-pipe inspection robot (IPIR) is proposed. Compared with common robots, this robot innovatively designs adapting mechanism. The robot can not only adapt to the change of the inner diameter size of the pipeline by using the bionic principle and the deformation characteristics of flexible components but also can pass smoothly in the horizontal/oblique/vertical pipelines and has a certain ability to cross obstacles. In addition, it can transmit images of the inner wall of the pipeline wirelessly for data analysis. Finally, through theoretical analysis and prototype construction, the performance of the robot is verified. The results show that the prototype robot can not only smoothly pass through the acrylic pipe with inner diameter of 120–138 mm but also pass through boss with a height of 3 mm.
Log Calabi–Yau surfaces and Jeffrey–Kirwan residues
Authors: ONTANI RICCARDO , STOPPA JACOPO 
Published: March 2024

AbstractWe prove an equality, predicted in the physical literature, between the Jeffrey–Kirwan residues of certain explicit meromorphic forms attached to a quiver without loops or oriented cycles and its Donaldson–Thomas type invariants.In the special case of complete bipartite quivers we also show independently, using scattering diagrams and theta functions, that the same Jeffrey–Kirwan residues are determined by the the Gross–Hacking–Keel mirror family to a log Calabi–Yau surface.
Travel insurance: an adult CHD patient’s perspective
Authors: Mekala Sai Aravind , Mubarak Omar , Hudsmith Lucy , Al-Sakini Nada 
Published: March 2024

AbstractMany adult CHD patients encounter difficulties in obtaining affordable travel insurance. We aimed to assess their travel habits and perspectives through a questionnaire. Our results indicate that many adult CHD patients use travel insurance but incur a premium due to their condition. There is an urgent need to provide better guidance to these patients on travel insurance options available to them.
The role of prosodic sensitivity and executive functions in L2 reading: The moderated mediation effect
Authors: Fang Lan , Liu Weilin , Wu Rangke , Schwieter John W. , Wang Ruiming 
Published: March 2024

Abstract
Prosody refers to stress and intonation patterns in a language. Previous studies have found that prosodic sensitivity (PS) and executive functions can affect reading comprehension in first (L1) and second languages (L2). The current study examined these factors among a group of L1 Mandarin speakers learning L2 English who participated in a series of tasks measuring phonological awareness, Mandarin tone sensitivity, English PS, along with three specific executive functions – namely, cognitive flexibility, inhibitory control, and working memory. The results demonstrated that Mandarin tone sensitivity and cognitive flexibility mediated English PS and reading. A simple slope analysis showed that PS positively predicted word reading for readers with higher but not lower cognitive flexibility. These results imply that PS in L2 reading is affected by both prosodic transfer of L1 tone sensitivity and cognitive flexibility.
A study on creative object biographies. Can creative arts be a medium for understanding object–human interaction?
Authors: Trimmis Konstantinos P. , Marini Christina , Katsilerou Zoe , Marinou Maria , Kapsali Konstantza , Perdikopoulou Melpomeni , Soumintoub Valentina , Brkić Drnić Kristina , Drnić Ivan , Theodoroudi Eleftheria , Tzortzopoulou Gregory Lita , Fernee Christianne L. , Kalogirou Konstantina 
Published: March 2024

AbstractObject biography, amended and expanded by the newer and ontologically updated concept of object itineraries, is a well-established analytical tool for documenting human–object interactions. The present paper explores its intersection with art, and proposes the concept of Creative Object Biography, as a step forward in the discourse and as a means for articulating and sharing alternative narratives and imageries not only among specialists but also – and especially – with the wider public, aiming to render discussions on materiality relevant to diverse audiences. The paper uses as a case study a group of three every-day objects associated with the Vlach pastoral transhumance of northern Greece, whose entanglements and cultural itineraries functioned as the inspiration for the creation of three original short films.
Strong Lens Detection 2.0: Machine Learning and Transformer Models
Authors: Thuruthipilly Hareesh 
Published: March 2024

AbstractUpcoming large-scale surveys like LSST are expected to uncover approximately 105 strong gravitational lenses within massive datasets. Traditional manual techniques are too time-consuming and impractical for such volumes of data. Consequently, machine learning methods have emerged as an alternative. In our prior work (Thuruthipilly et al. 2022), we introduced a self-attention-based machine learning model (transformers) for detecting strong gravitational lenses in simulated data from the Bologna Lens Challenge. These models offer advantages over simpler convolutional neural networks (CNNs) and competitive performance compared to state-of-the-art CNN models. We applied this model to the datasets from Bologna Lens Challenge 1 and 2 and simulated data on Euclid.
MAximum-entropy ReconStruction (MARS): A New Strong-lensing Reconstruction Algorithm for the JWST Era
Authors: Cha Sangjun , Jee M. James 
Published: March 2024

AbstractThe MAximum-entropy ReconStruction (MARS) method is a free-form strong-lensing (SL) reconstruction algorithm, which adopts the maximum cross-entropy as a regularization. MARS shows remarkable convergence of multiple images in both source (∼0.”02) and image planes (∼0.”05 – 0.”1) while suppressing spurious fluctuations. Although the reconstruction requires a large number of free parameters exceeding ∼19,000, our implementation through PyTorch can obtain the reconstruction within hours. From our test using the publicly available synthetic clusters, we have verified that the reconstructed radial mass profiles are consistent with the truth within 1 percent. This makes MARS one of the best-performing SL reconstruction methods. We apply MARS to the six Hubble Frontier Fields clusters and present new mass reconstruction results. We also reconstruct a mass model of Abell 2744 using both weak-lensing (WL) and SL data from the JWST observations, with the largest dataset of Abell 2744, including 286 SL multiple images and ∼350 arcmin−2 WL constraints.
Gravitational lenses in hydrodynamical simulations
Authors: Despali Giulia , Heinze Felix M. , Mastromarino Claudio 
Published: March 2024

AbstractThe gravitational lensing signal produced by a galaxy or a galaxy cluster is determined by its total matter distribution, providing us with a way to directly constrain their dark matter content. State-of-the-art numerical simulations successfully reproduce many observed properties of galaxies and can be used as a source of mock observations and predictions. Many gravitational lensing studies aim at constraining the nature of dark matter, discriminating between cold dark matter and alternative models. However, many past results are based on the comparison to simulations that did not include baryonic physics. Here we show that the presence of baryons can significantly alter the predictions: we look at the structural properties (profiles and shapes) of elliptical galaxies and at the inner density slope of subhaloes. Our results demonstrate that future simulations must model the interplay between baryons and alternative dark matter, to generate realistic predictions that could significantly modify the current constraints.
Clumpiness of lens galaxies as a window on dark matter
Authors: Bayer Dorota 
Published: March 2024

AbstractWhile the direct detection of the dark-matter particle remains very challenging, the physical properties of dark matter could potentially be constrained indirectly – by comparing the population characteristics of substructures in real galaxies with predictions from the phenomenological dark-matter models, such as cold, warm or self-interacting dark matter. Whereas these models are practically indistinguishable with respect to the expected abundance and statistical properties of massive galactic substructures, the critical difference lies in the low-mass regime ≲ 108M⊙. Galaxy-galaxy strong gravitational lensing provides a unique opportunity to search for gravitational signatures of such low-mass substructures in galaxies acting as a strong gravitational lens on a more distant background galaxy, serendipitously located along the same line of sight. In [Bayer et∼al.(2023)Bayer, Chatterjee, Koopmans, Vegetti, McKean, Treu, Fassnacht, and Glazebrook, Bayer et∼al.(2023)Bayer, Koopmans, McKean, Vegetti, Treu, Fassnacht, and Glazebrook, Bayer et∼al.(2023)Bayer, Vernardos, and Koopmans], we have recently introduced a novel approach to investigate the collective perturbative effect of low-mass substructures in the inner regions of massive elliptical lens galaxies and observationally constrain their power spectrum (on 1-10 kpc scales) based on the Fourier analysis of the associated surface-brightness anomalies in the lensed images (i.e., Einstein rings and gravitational arcs) observed with the Hubble Space Telescope. Here, we present a concise summary of the methodology, the encountered modelling challenges and the inferred observational constraints on the sub-galactic matter power spectrum. The future comparison of these results with predictions from hydrodynamical simulations might either verify the cold-dark-matter paradigm or require its substantial revision. Moreover, we demonstrate that the grid-based smooth lens modelling might model away surface-brightness anomalies caused by the presence of substructures in the lens galaxy and incorrectly interpret them as surface-brightness structure in the lensed background galaxy itself. If not properly understood and accounted for, such signal suppression might lead to severely biased constraints on the properties of substructures in galactic haloes.
Impact of Galaxy Dynamics on Modified Gravity Constraints from Strong Lensing Systems
Authors: Romanzini-Bezerra Grasiele , Makler Martin , Furlanetto Cristina 
Published: March 2024

AbstractGalaxy-galaxy strong lensing systems have been used in literature to test General Relativity by constraining the post-Newtonian parameter (γPPN). Nevertheless, these methods are prone to systematic errors, some of which arise from difficulties in modelling the dynamics of the lens galaxy. In this study, we address the systematic error related to the assumption of a constant anisotropy between the radial and tangential components of the velocity dispersion of stars within the lens galaxy, characterised by the parameter β. We considered two radial models for the anisotropy parameter, the Osipkov-Merritt and Mamon & Lokas, as well three Gaussian priors for constant β. Our analysis showed that the choice of β has a strong impact on the value of γPPN, with radial models leading to lower values of this parameter.
A Consumption‐Based Integrated Framework for Subnational Absolute Environmental Sustainability Management
Authors: Meng Fanxin , Liao Danqi , Wang Dongfang , Liu Gengyuan , Liang Sai , Cristiano Silvio , Li Xiaowen , Yang Zhifeng 
Published: March 2024

AbstractAs human consumption expands, four environmental footprints (EFs) exceed the planetary boundaries (PBs) at the global scale. Managing absolute environmental sustainability (AES) based on PBs and EFs at the subnational level is crucial for policy insights. However, a consumption‐based AES management framework still needs to be developed. A framework, including five nexus environmental pressures embodied in the supply chain, was developed and tested in our study across China's 30 provinces to address this knowledge gap. The framework involved three steps: (a) assessing AES for five environmental pressures, (b) measuring environmental surplus and overshoot and composition of EFs, and (c) identifying priority areas for AES management. The results showed that only some provinces are sustainable for three impact‐oriented indicators, especially those with larger populations. Moreover, the embodied environmental pressure mainly flows from the Northwest to Southeast China. For two resource‐oriented indicators, over 74% of provinces are absolutely sustainable. From a nexus perspective, Shandong and Shanghai are identified as priorities for AES management due to their low IESI values of 0.32, 0.33, and 0.40, respectively, which means the worst performance. To improve their IESI, Shanghai needs to control the consumption of blue water‐intensive products, while Shandong and Henan should consume fewer CO2 emissions and N‐ and P‐loss‐intensive products. This framework can clarify subnational responsibilities of environmental overshoots, guide sustainable development, and be widely used at the subnational level in countries worldwide.
Evolving Phase Propagation in an Intermediate‐m ULF Wave Driven by Substorm‐Injected Particles
Authors: Michael C. M. , Yeoman T. K. , Wright D. M. , Chelpanov M. A. , Mager P. N. 
Published: March 2024

AbstractAn ultralow frequency (ULF) wave was simultaneously observed in the ionosphere by the Super Dual Auroral Radar Network (SuperDARN) radar at Hankasalmi, Finland and on the ground by the International Monitor for Auroral Geomagnetic Effects (IMAGE) magnetometers with close proximity to the radar. The onset time of the wave event was around 03:00 magnetic local time. Fourier wave analysis of the event suggests a wave period of about 1,340 s with an equatorward latitudinal and eastward longitudinal wave phase propagation, and an effective azimuthal wave number of 17 ± 1, in the intermediate range of those observed in ULF waves. This wave has been interpreted as resulting from drifting electrons of energies of 13 ± 5 keV in a drift resonance condition linked to energetic particle populations during a magnetospheric substorm. The latitudinal phase characteristics of this wave experienced temporal evolution, believed to be caused by additional injected particle populations associated with the same substorm driving the wave, which resulted in an observed loss of HF backscatter. This observation of a unique type of temporal evolution in the phase propagation characteristics of ULF waves enhances current understanding about the structure, dynamics and source of these types of ULF waves.
A Thermodynamically Based Modified Cam‐Clay Model for Post‐Bifurcation Behavior of Deformation Bands
Authors: Sun Qingpei , Chen Xiao , Regenauer‐Lieb Klaus , Hu Manman 
Published: March 2024

AbstractCompaction bands are a type of localized deformation that can occur as diffuse or discrete bands in porous rocks. While modeling of shear bands can replicate discrete and diffusive bands, numerical models of compaction have so far only been able to describe the formation of discrete compaction bands. In this study, we present a new thermodynamic approach to model compaction bands that is able to capture both discrete and diffuse compaction band growth. The approach is based on a reaction‐diffusion formalism that includes an additional entropy flux. This entropic velocity regularizes the solution, by introducing a characteristic diffusion length scale and controlling the mode change from discrete to diffusive post‐localisation growth. The approach is used to model compaction band growth in highly porous carbonates. The model can replicate the areas of material damage exhibiting reduced porosity which are often observed as nuclei for the growth of compaction bands in experiments. The model also has the versatility to predict the formation of diffuse compaction bands, which is a significant advance in the field of compaction band modeling. The method can potentially be used for investigating the effect of material heterogeneities on compaction band growth and is heuristic for developing new methodologies for forecasting compaction band formation.
Influence of Physical Factors on Restratification of the Upper Water Column in Antarctic Coastal Polynyas
Authors: Xu Yilang , Zhang Weifeng (Gordon) , Maksym Ted , Ji Rubao , Li Yun , Walker Catherine 
Published: March 2024

AbstractAntarctic coastal polynyas are hotspots of biological production with intensive springtime phytoplankton blooms that strongly depend on meltwater‐induced restratification in the upper part of the water column. However, the fundamental physics that determine spatial inhomogeneity of the spring restratification remain unclear. Here, we investigate how different meltwaters affect springtime restratification and thus phytoplankton bloom in Antarctic coastal polynyas. A high‐resolution coupled ice‐shelf/sea‐ice/ocean model is used to simulate an idealized coastal polynya similar to the Terra Nova Bay Polynya, Ross Sea, Antarctica. To evaluate the contribution of various meltwater sources, we conduct sensitivity simulations altering physical factors such as alongshore winds, ice shelf basal melt, and surface freshwater runoff. Our findings indicate that sea ice meltwater from offshore is the primary buoyancy source of polynya near‐surface restratification, particularly in the outer‐polynya region where chlorophyll concentration tends to be high. Downwelling‐favorable alongshore winds can direct offshore sea ice away and prevent sea ice meltwater from entering the polynya region. Although the ice shelf basal meltwater can ascend to the polynya surface, much of it is mixed vertically over the water column and confined horizontally to a narrow coastal region, and thus does not contribute significantly to the polynya near‐surface restratification. Surface runoff from ice shelf surface melt could contribute greatly to the polynya near‐surface restratification. Nearby ice tongues and headlands strongly influence the restratification through modifying polynya circulation and meltwater transport pathways. Results of this study can help explain observed spatiotemporal variability in restratification and associated biological productivity in Antarctic coastal polynyas.