bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modeling a Coronal Mass Ejection from an Extended Filament Channel. II. Interplanetary Propagation to 1 au
Authors: Palmerio Erika , Maharana Anwesha , Lynch Benjamin J. , Scolini Camilla , Good Simon W. , Pomoell Jens , Isavnin Alexey , Kilpua Emilia K. J. 
Published: November 2023

Abstract
We present observations and modeling results of the propagation and impact at Earth of a high-latitude, extended filament channel eruption that commenced on 2015 July 9. The coronal mass ejection (CME) that resulted from the filament eruption was associated with a moderate disturbance at Earth. This event could be classified as a so-called “problem storm” because it lacked the usual solar signatures that are characteristic of large, energetic, Earth-directed CMEs that often result in significant geoeffective impacts. We use solar observations to constrain the initial parameters and therefore to model the propagation of the 2015 July 9 eruption from the solar corona up to Earth using 3D magnetohydrodynamic heliospheric simulations with three different configurations of the modeled CME. We find the best match between observed and modeled arrival at Earth for the simulation run that features a toroidal flux rope structure of the CME ejecta, but caution that different approaches may be more or less useful depending on the CME–observer geometry when evaluating the space weather impact of eruptions that are extreme in terms of their large size and high degree of asymmetry. We discuss our results in the context of both advancing our understanding of the physics of CME evolution and future improvements to space weather forecasting.
Coronal Magnetic Field Extrapolation and Topological Analysis of Fine-scale Structures during Solar Flare Precursors
Authors: He Wen , Jing Ju , Wang Haimin , Nayak Sushree S. , Prasad Avijeet 
Published: November 2023

Abstract
Magnetic field plays an important role in various solar eruption phenomena. The formation and evolution of the characteristic magnetic field topology in solar eruptions are critical problems that will ultimately help us understand the origin of these eruptions in the solar source regions. With the development of advanced techniques and instruments, observations with higher resolutions in different wavelengths and fields of view have provided more quantitative information for finer structures. It is therefore essential to improve the method with which we study the magnetic field topology in the solar source regions by taking advantage of high-resolution observations. In this study, we employ a nonlinear force-free field extrapolation method based on a nonuniform grid setting for an M-class flare eruption event (SOL2015-06-22T17:39) with embedded vector magnetograms from the Solar Dynamics Observatory (SDO) and the Goode Solar Telescope (GST). The extrapolation results for which the nonuniform embedded magnetogram for the bottom boundary was employed are obtained by maintaining the native resolutions of the corresponding GST and SDO magnetograms. We compare the field line connectivity with the simultaneous GST/Hα and SDO/Atmospheric Imaging Assembly observations for these fine-scale structures, which are associated with precursor brightenings. Then we perform a topological analysis of the field line connectivity corresponding to fine-scale magnetic field structures based on the extrapolation results. The analysis results indicate that when we combine the high-resolution GST magnetogram with a larger magnetogram from the SDO, the derived magnetic field topology is consistent with a scenario of magnetic reconnection among sheared field lines across the main polarity inversion line during solar flare precursors.
Effect of Spherical Polarization on the Magnetic Spectrum of the Solar Wind
Authors: Dunn Corina , Bowen Trevor A. , Mallet Alfred , Badman Samuel T. , Bale Stuart D. 
Published: November 2023

Abstract
Magnetic fluctuations in the solar wind are often observed to maintain constant magnitude of the magnetic field in a manner consistent with spherically polarized large-amplitude Alfvén waves. We investigate the effect of spherical polarization on the magnetic spectral index through a statistical survey of magnetic fluctuations observed by Parker Solar Probe between 20 R
⊙ and 200 R
⊙. We find that deviations from spherical polarization, i.e., changes in ∣
B
∣ (compressive fluctuations) and one-dimensional discontinuities, have a dramatic effect on the scaling behavior of the turbulent fluctuations. We show that shallow k
−3/2 spectra are only observed for three-dimensional structures of constant magnetic field strength, which we identify as large-amplitude Alfvén waves. The presence of compressive fluctuations coincides with a steepening of the spectrum up to k
−5/3. Steeper power-law scalings approaching k
−2 are observed when the fluctuations are dominated by discontinuities. Near-Sun fluctuations are found to be the most spherically polarized, suggesting that this spherical state is fundamental to the generation of the solar wind. With increasing distance from the Sun, fluctuations are found to become less three-dimensional and more compressive, which may indicate the breakdown of the Alfvénic equilibrium state.
Prospects for Detecting γ-Ray Bursts at Very High Energies with the HADAR Experiment
Authors: Yao Yu-Hua , Wang Zhen , Chen Shi , Chen Tian-Lu , Feng You-Liang , Gao Qi , Gou Quan-Bu , Guo Yi-Qing , Hu Hong-Bo , Kang Ming-Ming , Li Hai-Jin , Liu Chen , Liu Mao-Yuan , Liu Wei , Min Fang-Sheng , Sun Hui-Ying , Qiao Bing-Qiang , Qian Xiang-Li , Wang Xu , Xin Guang-Guang , Yuan Qiang , Zhang Yi 
Published: November 2023

Abstract
Recent ground-based observations of TeV photons have significantly deepened our understanding of the nature of gamma-ray bursts (GRBs). However, many fundamental problems remain unsolved concerning the physical mechanisms behind GRBs, necessitating the need for sufficient statistical data. The High Altitude Detection of Astronomical Radiation (HADAR) experiment utilizes a wide-angle water Cherenkov telescope, presenting a novel approach to measure the spectra and variability of GRBs from 10 GeV to 10 TeV energy ranges with unprecedented photon statistics and thereby break new ground in elucidating the physics of GRBs, which is still poorly understood. In this study, a time-dependent numerical modeling technique is utilized to simulate extensive light curves and spectral energy distributions of synthetic GRB afterglow emissions. By harnessing the remarkable capabilities of HADAR, we evaluate its potential in detecting GRB afterglow emissions at energies >10 GeV. Through our analysis, we unveil the prospect of detecting an estimated 5.8 GRBs annually, facilitating a systematic investigation into their reliance on model parameters. Future HADAR observations would offer valuable insights into the magnetic field and the environmental conditions surrounding GRBs.
BayeSED-GALAXIES. I. Performance Test for Simultaneous Photometric Redshift and Stellar Population Parameter Estimation of Galaxies in the CSST Wide-field Multiband Imaging Survey
Authors: Han Yunkun , Fan Lulu , Zheng Xian Zhong , Bai Jin-Ming , Han Zhanwen 
Published: November 2023

Abstract
The forthcoming Chinese Space Station Telescope (CSST) wide-field multiband imaging survey will produce seven-band photometric spectral energy distributions (SEDs) for billions of galaxies. The effective extraction of astronomical information from these massive data sets of SEDs relies on the techniques of SED synthesis (or modeling) and SED analysis (or fitting). We evaluate the performance of the latest version of the BayeSED code combined with SED models with increasing complexity for simultaneously determining the photometric redshifts and stellar population parameters of galaxies in this survey. By using an empirical statistics–based mock galaxy sample without SED modeling errors, we show that the random observational errors in photometries are more important sources of errors than the parameter degeneracies and Bayesian analysis method and tool. By using a Horizon-AGN hydrodynamical simulation–based mock galaxy sample with SED modeling errors about the star formation histories (SFHs) and dust attenuation laws (DALs), the simple typical assumptions lead to significantly worse parameter estimation with CSST photometries only. SED models with more flexible (or complicated) forms of SFH/DAL do not necessarily lead to better estimation of redshift and stellar population parameters. We discuss the selection of the best SED model by means of Bayesian model comparison in different surveys. Our results reveal that Bayesian model comparison with Bayesian evidence may favor SED models with different complexities when using photometries from different surveys. Meanwhile, the SED model with the largest Bayesian evidence tends to give the best performance of parameter estimation, which is clearer for photometries with higher discriminative power.
Nonequilibrium Ionization Effects on Synthetic Spectra in the AWSoM Solar Corona
Authors: Szente J. , Landi E. , van der Holst B. 
Published: November 2023

Abstract
In this work, we combined AWSoM’s nonequilibrium ionization (NEI) calculations from Szente et al. with the synthetic spectral computations of SPECTRUM to predict nonequilibrium line intensities across the entire domain of the AWSoM 3D global model. We find that the resulting spectra are strongly affected by nonequilibrium effects in the fast-wind regions and streamer edges and that these effects propagate to narrowband images from SoHO/EIT, SECCHI/EUVI, and SDO/AIA. The dependence shows a different nature for each line observed, resulting in significant changes in line intensity, which need to be accounted for during plasma diagnostics. However, we also find that these effects depend on the local plasma properties, and that no single correction can be developed to account for nonequilibrium effects in observed spectra and images. With a comparison to observational data, we saw that the changes due to NEI, while significant, are not sufficient to account for the differences between Hinode/EIS spectra and AWSoM/SPECTRUM predictions.
Wavelengths and Energy Levels of the Upper Levels of Singly Ionized Nickel (Ni ii) from 3d
8(3
F)5f to 3d
8(3
F)9s
Authors: Clear Christian P. , Pickering Juliet C. , Nave Gillian , Uylings Peter , Raassen Ton 
Published: November 2023

Abstract
Using high-resolution spectra of Ni ii recorded using Fourier transform (FT) spectroscopy of continuous, nickel–helium hollow cathode discharge sources in the region 143–5555 nm (1800–70,000 cm−1, the analysis of 1016 Ni ii lines confirmed and optimized 206 previously reported energy levels of the (3
F) parent term, from 3d
8(3
F)5f to 3d
8(3
F)9s, lying between 122,060 and 138,563 cm−1. The uncertainties of these levels have been improved by at least an order of magnitude compared with their previously reported values. With the increased resolution and spectral range of the FT measurements, compared to previously published grating spectra, we were able to extend our analysis to identify and establish 33 new energy levels of Ni ii, which are reported here for the first time. Eigenvector compositions of all revised and newly established energy levels were calculated using the orthogonal operator method. In addition, an improved ionization energy of 146,541.35 ± 0.15 cm−1 for Ni ii, using highly excited levels of the 3d
8(3
F)5g, 3d
8(3
F)6g, and 3d
8(3
F)6h configurations, has been derived.
JWST Detects Neon Line Variability in a Protoplanetary Disk
Authors: Espaillat C. C. , Thanathibodee T. , Pittman C. V. , Sturm J. A. , McClure M. K. , Calvet N. , Walter F. M. , Franco-Hernández R. , Muzerolle Page J. 
Published: November 2023

Abstract
We report the first detection of variability in the mid-infrared neon line emission of a protoplanetary disk by comparing a JWST Mid-InfraRed Instrument Medium Resolution Spectrometer spectrum of SZ Cha taken in 2023 with a Spitzer Infrared Spectrograph Short-High spectrum of this object from 2008. We measure the [Ne iii]-to-[Ne ii] line flux ratio, which is a diagnostic of the high-energy radiation field, to distinguish between the dominance of EUV- or X-ray-driven disk photoevaporation. We find that the [Ne iii]-to-[Ne ii] line flux ratio changes significantly from ∼1.4 in 2008 to ∼0.2 in 2023. This points to a switch from EUV-dominated to X-ray-dominated photoevaporation of the disk. We present contemporaneous ground-based optical spectra of the Hα emission line that show the presence of a strong wind in 2023. We propose that this strong wind prevents EUV radiation from reaching the disk surface while the X-rays permeate the wind and irradiate the disk. We speculate that at the time of the Spitzer observations, the wind was suppressed and EUV radiation reached the disk. These observations confirm that the MIR neon emission lines are sensitive to changes in high-energy radiation reaching the disk surface. This highlights the [Ne iii]-to-[Ne ii] line flux ratio as a tool to gauge the efficiency of disk photoevaporation in order to provide constraints on the planet formation timescale. However, multiwavelength observations are crucial to interpret the observations and properly consider the star–disk connection.
Diversidad de hormigas (Hymenoptera, Formicidae) en un área natural vs otra reforestada a lo largo de la costa atlántica marroquí
Authors: Fernane Asmaa , Taheri‍ Ahmed , Najjari Aya , Reyes-López‍ Joaquín-Luis 
Published: November 2023

La costa de la provincia de El Jadida es una de las zonas costeras atlánticas marroquíes con destacado interés biológico, ecológico y paisajístico, que se extiende desde la desembocadura del río Oum Er Rabia hasta las dunas y bosques costeros. Sin embargo, esta área protegida sigue siendo poco conocida en términos de su componente entomológico y aún no ha sido objeto de medidas de conservación. Para abordar esta falta de datos entomológicos, realizamos cuatro campañas de muestreo de hormigas entre abril y mayo de 2022, utilizando el método de trampa de caída en dos sitios diferentes: el “Sitio de Interés Biológico y Ecológico” de Haouzia y el bosque explotado de Chiadma. Registramos un total de 19 especies de hormigas, pertenecientes a 11 géneros y tres subfamilias: Myrmicinae (70,39%), Dolichoderinae (17,66%) y Formicinae (11,96%). Las especies más abundantes fueron Aphaenogaster senilis y Tapinoma simrothi, que representaron el 49,36% y el 17,66% de los especímenes, respectivamente. La mayor diversidad de hormigas se encontró en el matorral natural de Haouzia, con 13 especies y un índice de Shannon de 5,9, en comparación con 11 especies y un índice de Shannon de 3,5 en el bosque reforestado de Chiadma. Además, a excepción de Aphaenogaster theryi y Cataglyphis vaucheri, todas las especies de hormigas capturadas son nuevos registros para la costa de la provincia de El Jadida, y ambos sitiosmostraron conjuntamente una tasa muy alta de endemismo de hormigas marroquíes (31,57%). El análisis de escalamiento multidimensional no métrico mostró una clara separación entre los dos ecosistemas muestreados. Nuestros resultados sugieren un potencial efecto negativo de la reforestación de eucaliptos en la biodiversidad local, y destacan la urgente necesidad de medidas de conservación para proteger la notable biodiversidad albergada por el “Sitio de Interés Biológico y Ecológico” de Haouzia y sus alrededores.
La nuit de la parole
Authors: Puccio-Den Deborah 
Published: November 2023

Les cinq scènes qui se jouent dans ce livre répondent à deux questions : comment scruter ce qui n’est pas dit, ne s’entend pas, ne se touche pas, ne se voit pas, se cache ? Quoi de commun entre un bal de carnaval slave, la procession d’une Vierge andalouse, l’omerta mafieuse, la rêverie d’un juge cloîtré et la kizomba, danse en banlieue parisienne ? Interrogeant le mutisme de différentes sociétés, l’auteure en découvre la trame commune : les conceptions de la nuit et de son pouvoir métamorphique. La nuit possède une force d’action foudroyante, et, cachée sous nos logiques apparentes, les fait voler en éclats : comme elle, le silence révèle la possibilité de transformer notre vision du réel et nos modes de connaissance ; il dévoile une autre face du monde, des croyances et des habitudes sous-jacentes, redoutées ou interdites, conscientes ou inconscientes, accouchant d’un corps nouveau, transformant les objets, les hommes et les sociétés diurnes et parlantes. Le silence est une parole bousculée comme la nuit est une anamorphose du jour. Une anthropologie des sens est le terreau brûlant de ce travail : la reconnaissance impossible sous le masque, l’ouïe trompée par un silence canonique ou mafieux, une Vierge muette chahutée comme une femme, l’art domestique d’un homme perdu, le toucher drastiquement contraint d’une danse qui saisit le corps entier. Ce point crucial induit chez l’enquêtrice, observatrice et participante, une remarquable ethnographie du soi.
CD8+ T Cell–Dependent Antitumor Activity In Vivo of a Mass Spectrometry–Identified Neoepitope despite Undetectable CD8+ Immunogenicity In Vitro
Authors: Gillig Marc A , Brennick Cory A , George Mariam M , Balsbaugh Jeremy L , Shcheglova Tatiana V , Mandoiu Ion I , Rosales Tatiana , Baker Brian M , Srivastava Pramod K , Karandikar Sukrut H 
Published: November 2023

Abstract
Identification of neoepitopes that can control tumor growth in vivo remains a challenge even 10 y after the first genomics-defined cancer neoepitopes were identified. In this study, we identify a neoepitope, resulting from a mutation in the junction plakoglobin (Jup) gene (chromosome 11), from the mouse colon cancer line MC38-FABF (C57BL/6). This neoepitope, Jup mutant (JupMUT), was detected during mass spectrometry of MHC class I–eluted peptides from the tumor. JupMUT has a predicted binding affinity of 564 nM for the Kb molecule and a higher predicted affinity of 82 nM for Db. However, whereas structural modeling of JupMUT and its unmutated counterpart Jup wild-type indicates that there are little conformational differences between the two epitopes bound to Db, large structural divergences are predicted between the two epitopes bound to Kb. Together with in vitro binding data with RMA-S cells, these data suggest that Kb rather than Db is the relevant MHC class I molecule of JupMUT. Immunization of naive C57BL/6 mice with JupMUT elicits CD8-dependent tumor control of a MC38-FABF challenge. Despite the CD8 dependence of JupMUT-mediated tumor control in vivo, CD8+ T cells from JupMUT-immunized mice do not produce higher levels of IFN-γ than do naive mice. The structural and immunological characteristics of JupMUT are substantially different from those of many other neoepitopes that have been shown to mediate tumor control.
Long non-coding RNA CDKN2B-AS1 promotes hepatocellular carcinoma progression via E2F transcription factor 1/G protein subunit alpha Z axis
Authors: Tao Zhi-Gang , Yuan Yu-Xiao , Wang Guo-Wei 
Published: November 2023

BACKGROUND
A series of long non-coding RNAs (lncRNAs) have been reported to play a crucial role in cancer biology. Some previous studies report that lncRNA CDKN2B-AS1 is involved in some human malignancies. However, its role in hepatocellular carcinoma (HCC) has not been fully deciphered.
AIM
To decipher the role of CDKN2B-AS1 in the progression of HCC.
METHODS
CDKN2B-AS1 expression in HCC was detected by quantitative real-time polymerase chain reaction. The malignant phenotypes of Li-7 and SNU-182 cells were detected by the CCK-8 method, EdU method, and flow cytometry, respectively. RNA immunoprecipitation was executed to confirm the interaction between CDKN2B-AS1 and E2F transcription factor 1 (E2F1). Luciferase reporter assay and chromatin immunoprecipitation were performed to verify the binding of E2F1 to the promoter of G protein subunit alpha Z (GNAZ). E2F1 and GNAZ were detected by western blot in HCC cells.
RESULTS
In HCC tissues, CDKN2B-AS1 was upregulated. Depletion of CDKN2B-AS1 inhibited the proliferation of HCC cells, and the depletion of CDKN2B-AS1 also induced cell cycle arrest and apoptosis. CDKN2B-AS1 could interact with E2F1. Depletion of CDKN2B-AS1 inhibited the binding of E2F1 to the GNAZ promoter region. Overexpression of E2F1 reversed the biological effects of depletion of CDKN2B-AS1 on the malignant behaviors of HCC cells.
CONCLUSION
CDKN2B-AS1 recruits E2F1 to facilitate GNAZ transcription to promote HCC progression.
Application of convolutional neural network-based endoscopic imaging in esophageal cancer or high-grade dysplasia: A systematic review and meta-analysis
Authors: Zhang Jun-Qi , Mi Jun-Jie , Wang Rong 
Published: November 2023

BACKGROUND
Esophageal cancer is the seventh-most common cancer type worldwide, accounting for 5% of death from malignancy. Development of novel diagnostic techniques has facilitated screening, early detection, and improved prognosis. Convolutional neural network (CNN)-based image analysis promises great potential for diagnosing and determining the prognosis of esophageal cancer, enabling even early detection of dysplasia.
AIM
To conduct a meta-analysis of the diagnostic accuracy of CNN models for the diagnosis of esophageal cancer and high-grade dysplasia (HGD).
METHODS
PubMed, EMBASE, Web of Science and Cochrane Library databases were searched for articles published up to November 30, 2022. We evaluated the diagnostic accuracy of using the CNN model with still image-based analysis and with video-based analysis for esophageal cancer or HGD, as well as for the invasion depth of esophageal cancer. The pooled sensitivity, pooled specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR) and area under the curve (AUC) were estimated, together with the 95% confidence intervals (CI). A bivariate method and hierarchical summary receiver operating characteristic method were used to calculate the diagnostic test accuracy of the CNN model. Meta-regression and subgroup analyses were used to identify sources of heterogeneity.
RESULTS
A total of 28 studies were included in this systematic review and meta-analysis. Using still image-based analysis for the diagnosis of esophageal cancer or HGD provided a pooled sensitivity of 0.95 (95%CI: 0.92-0.97), pooled specificity of 0.92 (0.89-0.94), PLR of 11.5 (8.3-16.0), NLR of 0.06 (0.04-0.09), DOR of 205 (115-365), and AUC of 0.98 (0.96-0.99). When video-based analysis was used, a pooled sensitivity of 0.85 (0.77-0.91), pooled specificity of 0.73 (0.59-0.83), PLR of 3.1 (1.9-5.0), NLR of 0.20 (0.12-0.34), DOR of 15 (6-38) and AUC of 0.87 (0.84-0.90) were found. Prediction of invasion depth resulted in a pooled sensitivity of 0.90 (0.87-0.92), pooled specificity of 0.83 (95%CI: 0.76-0.88), PLR of 7.8 (1.9-32.0), NLR of 0.10 (0.41-0.25), DOR of 118 (11-1305), and AUC of 0.95 (0.92-0.96).
CONCLUSION
CNN-based image analysis in diagnosing esophageal cancer and HGD is an excellent diagnostic method with high sensitivity and specificity that merits further investigation in large, multicenter clinical trials.