bluuebunny/crossref_metadata_2025_split huggingface dataset:
Imaging a Large Coronal Loop Using Type U Solar Radio Burst Interferometry
Authors: Zhang Jinge , Reid Hamish A. S. , Carley Eoin , Lamy Laurent , Zucca Pietro , Zhang Peijin , Cecconi Baptiste 
Published: April 2024

Abstract
Solar radio U-bursts are generated by electron beams traveling along closed magnetic loops in the solar corona. Low-frequency (<100 MHz) U-bursts serve as powerful diagnostic tools for studying large-sized coronal loops that extend into the middle corona. However, the positive frequency drift component (descending leg) of U-bursts has received less attention in previous studies, as the descending radio flux is weak. In this study, we utilized LOFAR interferometric solar imaging data from a U-burst that has a significant descending leg component, observed between 10 and 90 MHz on 2020 June 5th. By analyzing the radio source centroid positions, we determined the beam velocities and physical parameters of a large coronal magnetic loop that reached just about 1.3 R
⊙ in altitude. At this altitude, we found the plasma temperature to be around 1.1 MK, the plasma pressure around 0.20 mdyn, cm−2, and the minimum magnetic field strength around 0.07 G. The similarity in physical properties determined from the image suggests a symmetric loop. The average electron beam velocity on the ascending leg was found to be 0.21c, while it was 0.14c on the descending leg. This apparent deceleration is attributed to a decrease in the range of electron energies that resonate with Langmuir waves, likely due to the positive background plasma density gradient along the downward loop leg.
Multiphase Gas in Elliptical Galaxies: The Role of Type Ia Supernovae
Authors: Mohapatra Rajsekhar , Quataert Eliot 
Published: April 2024

Abstract
Massive elliptical galaxies harbor large amounts of hot gas (T ≳ 106 K) in their interstellar medium (ISM) but are typically quiescent in star formation. The jets of active galactic nuclei (AGNs) and Type Ia supernovae (SNe Ia) inject energy into the ISM, which offsets its radiative losses and keeps it hot. SNe Ia deposit their energy locally within the galaxy compared to the larger few ×10 kiloparsec-scale AGN jets. In this study, we perform high-resolution (5123) hydrodynamic simulations of a local (1 kpc3) density-stratified patch of the ISM of massive galaxies. We include radiative cooling and shell-averaged volume heating, as well as randomly exploding SN Ia. We study the effect of different fractions of supernova (SN) heating (with respect to the net cooling rate), different initial ISM density/entropy (which controls the growth time t
ti of the thermal instability), and different degrees of stratification (which affect the freefall time t
ff). We find that SNe Ia drive predominantly compressive turbulence in the ISM with a velocity dispersion of σ

v
up to 40 km s−1 and logarithmic density dispersion of σ

s
∼ 0.2–0.4. These fluctuations trigger multiphase condensation in regions of the ISM, where

min
(

t

ti

)

/

t

ff

≲
0.6
exp
(
6

σ

s

)

, in agreement with theoretical expectations that large density fluctuations efficiently trigger multiphase gas formation. Since the SN Ia rate is not self-adjusting, when the net cooling drops below the net heating rate, SNe Ia drive a hot wind which sweeps out most of the mass in our local model. Global simulations are required to assess the ultimate fate of this gas.
Latent Stochastic Differential Equations for Modeling Quasar Variability and Inferring Black Hole Properties
Authors: Fagin Joshua , Park Ji Won , Best Henry , Chan James H. H. , Ford K. E. Saavik , Graham Matthew J. , Villar V. Ashley , Ho Shirley , O’Dowd Matthew 
Published: April 2024

Abstract
Quasars are bright and unobscured active galactic nuclei (AGN) thought to be powered by the accretion of matter around supermassive black holes at the centers of galaxies. The temporal variability of a quasar’s brightness contains valuable information about its physical properties. The UV/optical variability is thought to be a stochastic process, often represented as a damped random walk described by a stochastic differential equation (SDE). Upcoming wide-field telescopes such as the Rubin Observatory Legacy Survey of Space and Time (LSST) are expected to observe tens of millions of AGN in multiple filters over a ten year period, so there is a need for efficient and automated modeling techniques that can handle the large volume of data. Latent SDEs are machine learning models well suited for modeling quasar variability, as they can explicitly capture the underlying stochastic dynamics. In this work, we adapt latent SDEs to jointly reconstruct multivariate quasar light curves and infer their physical properties such as the black hole mass, inclination angle, and temperature slope. Our model is trained on realistic simulations of LSST ten year quasar light curves, and we demonstrate its ability to reconstruct quasar light curves even in the presence of long seasonal gaps and irregular sampling across different bands, outperforming a multioutput Gaussian process regression baseline. Our method has the potential to provide a deeper understanding of the physical properties of quasars and is applicable to a wide range of other multivariate time series with missing data and irregular sampling.
GOALS-JWST: Gas Dynamics and Excitation in NGC 7469 Revealed by NIRSpec
Authors: Bianchin Marina , U Vivian , Song Yiqing , Lai 賴 Thomas S.-Y. 劭愉 , Remigio Raymond P. , Barcos-Muñoz Loreto , Díaz-Santos Tanio , Armus Lee , Inami Hanae , Larson Kirsten L. , Evans Aaron S. , Böker Torsten , Kader Justin A. , Linden Sean T. , Charmandaris Vassilis , Malkan Matthew A. , Rich Jeff , Bohn Thomas , Medling Anne M. , Stierwalt Sabrina , Mazzarella Joseph M. , Law David R. , Privon George C. , Aalto Susanne , Appleton Philip , Brown Michael J. I. , Buiten Victorine A. , Finnerty Luke , Hayward Christopher C. , Howell Justin , Iwasawa Kazushi , Kemper Francisca , Marshall Jason , McKinney Jed , Müller-Sánchez Francisco , Murphy Eric J. , van der Werf Paul P. , Sanders David B. , Surace Jason 
Published: April 2024

Abstract
We present new JWST NIRSpec integral field spectroscopy (IFS) data for the luminous infrared galaxy NGC 7469, a nearby (70.6 Mpc) active galaxy with a Seyfert 1.5 nucleus that drives a highly ionized gas outflow and a prominent nuclear star-forming ring. Using the superb sensitivity and high spatial resolution of the JWST instrument NIRSpec IFS, we investigate the role of the Seyfert nucleus in the excitation and dynamics of the circumnuclear gas. Our analysis focuses on the [Fe ii], H2, and hydrogen recombination lines that trace the radiation/shocked-excited molecular and ionized interstellar medium around the active galactic nucleus (AGN). We investigate gas excitation through H2/Brγ and [Fe ii]/Paβ emission line ratios and find that photoionization by the AGN dominates within the central 300 pc of the galaxy except in a small region that shows signatures of shock-heated gas; these shock-heated regions are likely associated with a compact radio jet. In addition, the velocity field and velocity dispersion maps reveal complex gas kinematics. Rotation is the dominant feature, but we also identify noncircular motions consistent with gas inflows as traced by the velocity residuals and the spiral pattern in the Paα velocity dispersion map. The inflow is 2 orders of magnitude higher than the AGN accretion rate. The compact nuclear radio jet has enough power to drive the highly ionized outflow. This scenario suggests that the inflow and outflow are in a self-regulating feeding–feedback process, with a contribution from the radio jet helping to drive the outflow.
Magnetic Activity of Millions of G-type Stars Based on the LAMOST DR10 Low-resolution Spectral and TESS Light-curve Surveys and the Future CSST Survey
Authors: Su Tianhao , Zhang Li-yun , Long Liu , Misra Prabhakar , Han Xianming L. , Meng Gang , Yang ZiLu , Pi Qingfeng 
Published: April 2024

Abstract
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) data release 10 (DR10) provides over 3 million G-type stellar spectra, which are important for the study of chromospheric activity of solar-like stars. We have used the iSpec program to perform spectral subtraction on the G-type stellar spectra obtained from LAMOST DR10 with a signal-to-noise ratio greater than 10. We have calculated the magnetic activity of G-type stars using Hα lines and analyzed the Hα variation. Among the more than 3 million spectra from more than 2.3 million stars, a total of 220,000 stars show excess chromospheric activity. There were a total of about 480,000 stars with repeated observations. About 390,000 stars were found to exhibit variations in the Hα line, and 14,000 stars showed changes in their radial velocity. By using the Gaia data, we determined the distances of these stars above the Galactic disk. We first concluded that the fraction of G-type active stars decreases with increasing distance above the Galactic disk. By using the Transiting Exoplanet Survey Satellite light curves, we obtained the effective fluctuation range of the light curve caused by the starspot and confirmed that there was a positive correlation between the starspot and chromospheric activity. We also concluded that

R

H
α

′

tends to be stable for Rossby number (Ro) < 0.13 and that

R

H
α

′

decreases as Ro increases in the region Ro ≥ 0.13.
The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O vii, O viii, and Fe L-shell Transitions
Authors: Pan Zeyang , Qu Zhijie , Bregman Joel N. , Liu Jifeng 
Published: April 2024

Abstract
The XMM-Newton Line Emission Analysis Program (X-LEAP) is designed to study diffuse X-ray emissions from the Milky Way (MW) hot gas, as well as emissions from the foreground solar wind charge exchange (SWCX). This paper presents an all-sky survey of spectral feature intensities corresponding to the O vii, O viii, and iron L-shell (Fe-L) emissions. These intensities are derived from 5418 selected XMM-Newton observations with long exposure times and minimal contamination from point or extended sources. For 90% of the measured intensities, the values are within ≈2–18 photons cm−2 s−1 sr−1 (line unit (LU)), ≈0–8 LU, and ≈0–9 LU, respectively. We report long-term variations in O vii and O viii intensities over 22 yr, closely correlating with the solar cycle and attributed to SWCX emissions. These variations contribute ∼30% and ∼20% to the observed intensities on average and peak at ≈4 and ≈1 LU during solar maxima. We also find evidence of short-term and spatial variations in SWCX, indicating the need for a more refined SWCX model in future studies. In addition, we present SWCX- and absorption-corrected all-sky maps for a better view of the MW hot gas emission. These maps show a gradual decrease in oxygen intensity moving away from the Galactic center and a concentration of Fe-L intensity in the Galactic bubbles and disk.
The comprehensive checklist of myxomycetes of Ukraine, based on extended occurrence and reference datasets
Authors: Yatsiuk Iryna , Leshchenko Yuliia , Viunnyk Vitalii , Leontyev Dmytro 
Published: April 2024

A significant body of valuable data about the myxomycetes of Ukraine lies in a “grey zone”. This encompasses undigitised historical books and articles published in languages such as Polish, French or German, as well as proceedings from local conferences, articles featured in local scientific journals and annual reports submitted to public authorities by employees of protected areas, published in Ukrainian or Russian. Yet, due to their exclusive existence in print and often the Cyrillic alphabet, these publications remain neither findable nor accessible to a wider audience.
The datasets presented here aim to summarise over 150 years of myxomycetes research in Ukraine. The majority of the data has been extracted from published literature sources spanning the years 1842 to 2023, with a minor supplement from unpublished herbarium specimens. The datasets include 5036 georeferenced occurrences, 339 taxa and 91 literature sources. Seventy-one of the used literature sources, mostly published before 2010, were uploaded to Zenodo and are available in open access.
Cour d’appel de Mons (22 e ch.), 25 juin 2019
Authors: Lutte Isabelle 
Published: April 2024

1. Le juge ne peut écarter le calcul par capitalisation d’un dommage permanent que s’il constate et indique de manière précise que ce calcul est en soi radicalement impossible. 2. La thèse de l’accoutumance selon laquelle on s’habituerait à son handicap, ne repose sur aucun fondement scientifique sérieux et ne saurait être retenue ; au contraire, il convient de relever que la consolidation marque la fin des espoirs. 3. Le recours aux tables de capitalisation stationnaires perd de vue l’augmentation constante de l’espérance de vie. On ne peut reprocher à la victime de préférer un placement sûr avec un taux bas plutôt que de se lancer dans des spéculations immobilières ou autres. Il y a donc lieu de retenir les Tables de Schryvers 2018 avec un taux technique de 1 %.
Accident du travail et Covid-19
Authors: Gilson Steve 
Published: April 2024

Un facteur se dit contaminé par la Covid-19 après avoir utilisé la camionnette de son collègue, laquelle n’aurait pas été préalablement désinfectée. Contracter la Covid-19 peut-il être considéré comme accident du travail et donc, mener à l’intervention de l’assureur-loi ?
L’article 8 du Code des droits de succession selon la vision nouvelle de l’administration fiscale fédérale
Authors: Devoet Claude 
Published: April 2024

L’administration fédérale a revu sa position par sa circulaire 2021/C/2 du 7 janvier 2021 relative à l’article 8 du Code des droits de succession et à la taxation applicable selon divers types de contrat d’assurance vie. Elle distille ses « commentaires administratifs relatifs à l’article 8 du Code des droits de succession et à la taxation à opérer en fonction de la structure du contrat d’assurance vie concernant un défunt, ce dernier pouvant y intervenir à titre de preneur et/ou assuré et/ou bénéficiaire, tant dans les cas où le défunt est un conjoint marié sous un régime de communauté que dans les cas où le défunt n’est pas marié ou marié sous un régime de séparation de biens ».
Quand l’opération de capitalisation du grand-duché de luxembourg n’en est pas une en belgique ! propos sur la réglementation belge des assurances et les contrats luxembourgeois de capitalisation « multi-supports »
Authors: Longfils Fleur , Lejeune Benoît 
Published: April 2024

L’apparition sur le marché belge du contrat de capitalisation « multi-supports », à l’origine issu du droit luxembourgeois, soulève un certain nombre de questions juridiques et fiscales de droit belge. Parmi elles figure notamment l’autorisation ou non de commercialiser un tel contrat en Belgique. Ces questions sont traitées dans la présente contribution principalement sous l’angle réglementaire et accessoirement sous l’angle fiscal.
Geografski atlas naravnih nesreč v Sloveniji
Authors: Komac Blaž , Ciglič Rok , Hrvatin Mauro , Volk Bahun Manca , Štaut Lenart , Zorn Matija 
Published: April 2024

Spletni Geografski atlas naravnih nesreč v Sloveniji prikazuje temeljne podatke o naravnih nevarnostih in naravnih nesrečah v Sloveniji. Obsega podatke o zgodovinskih naravnih nesrečah ter predstavlja zemljevide nevarnosti za več naravnih pojavov (snežni plaz, poplava, zemeljski plaz, potres, gozdni požar) in podatke o škodi nastali zaradi naravnih nesreč. Namen atlasa je seznaniti strokovno in splošno javnost z vrstami in pogostostjo naravnih nesreč, ki so nastale na ozemlju Slovenije vse od 14. stoletja dalje, pogosteje od leta 1750, natančneje pa za obdobje zadnjih 150 let. Skupaj ima podatkovna baza približno 5000 enot, ki obsegajo prek 100.000 podatkov, od katerih so relevantni prikazani v spletnem atlasu. V članku predstavljamo nastanek in zasnovo atlasa ter podajamo analizo vsebine.
The Geographical Atlas of Natural Disasters in Slovenia
The online Geographical Atlas of Natural Disasters in Slovenia shows basic information on natural hazards and natural disasters in Slovenia. It includes data on historical natural disasters, and it presents hazard maps for several natural phenomena (avalanches, floods, landslides, earthquakes, and forest fires) and data on the damage caused by natural disasters. The aim of the atlas is to inform the professional community and the public about the types and frequency of natural disasters that have occurred on Slovenian territory since the fourteenth century, more frequently since 1750, and more specifically for the last 150 years. In total, the database comprises approximately five thousand units, with over 100,000 pieces of data, of which the relevant ones are displayed in the online atlas. This article presents the origins and design of the atlas, along with an analysis of its content.
Apports de la pédagogie de la terre dans un projet d’éveil au(x) michif(s)
Authors: Lemaire Eva 
Published: April 2024

Comment un projet de recherche-action-formation, cherchant à valoriser les langues et les cultures des Métis dans les écoles primaires francophones de l’Ouest canadien, permet-il d’explorer les interconnexions entre les langues autochtones, les savoirs traditionnels et la relation à la terre  ? À travers une série d’exemples tirés de l’approche que nous avons développée autour des langues traditionnelles des Métis, nous explorons comment la pédagogie de la terre, telle que nous l’interprétons en lien avec les savoirs transmis par les Ainés qui ont collaboré à ce projet, nous permet de jeter un regard neuf sur notre rapport à la nature et aux Autres.
Prevalence and risk factors of wound complications after transtibial amputation in patients with diabetic foot
Authors: Park Young Uk , Eim Seong Hyuk , Seo Young Wook 
Published: April 2024

BACKGROUND
Diabetic foot (DMF) complications are common and are increasing in incidence. Risk factors related to wound complications are yet to be established after trans-tibial amputation under the diagnosis of DMF infection.
AIM
To analyze the prognosis and risk factors related to wound complications after transtibial amputation in patients with diabetes.
METHODS
This retrospective cohort study included seventy-two patients with DMF complications who underwent transtibial amputation between April 2014 and March 2023. The groups were categorized based on the occurrence of wound complications, and we compared demographic data between the complication group and the non-complication group to analyze risk factors. Moreover, a multivariate logistic regression analysis was performed to identify risk factors.
RESULTS
The average follow-up period was 36.2 months. Among the 72 cases, 31 (43.1%) had wound complications. Of these, 12 cases (16.7%) received further treatment, such as debridement, soft tissue stump revision, and re-amputation at the proximal level. In a group that required further management due to wound complications after transtibial amputation, the hemoglobin A1c (HbA1c) level was 9.32, while the other group that did not require any treatment had a 7.54 HbA1c level. The prevalence of a history of kidney transplantation with wound complications after transtibial amputation surgery in DMF patients was significantly greater than in cases without wound complications (P = 0.02). Other factors did not show significant differences.
CONCLUSION
Approximately 43.1% of the patients with transtibial amputation surgery experienced wound complications, and 16.7% required additional surgical treatment. High HbA1c levels and kidney transplant history are risk factors for postoperative wound complications.
Effect of special types of bread with select herbal components on postprandial glucose levels in diabetic patients
Authors: Gostiljac Drasko M , Popovic Srdjan S , Dimitrijevic-Sreckovic Vesna , Ilic Sasa M , Jevtovic Jelena A , Nikolic Dragan M , Soldatovic Ivan A 
Published: April 2024

BACKGROUND
Nutrition recommendations in patients with type 2 diabetes mellitus (T2DM) are to consume rye or integral bread instead of white bread. A positive effect on glucoregulation has been achieved by enriching food with various biologically active substances of herbal origin, so we formulated an herbal mixture that can be used as a supplement for a special type of bread (STB) to achieve better effects on postprandial glucose and insulin levels in patients with T2DM.
AIM
To compare organoleptic characteristics and effects of two types of bread on postprandial glucose and insulin levels in T2DM patients.
METHODS
This trial included 97 patients with T2DM. A parallel group of 16 healthy subjects was also investigated. All participants were given 50 g of rye bread and the same amount of a STB with an herbal mixture on 2 consecutive days. Postprandial blood glucose and insulin levels were compared at the 30th, 60th, 90th and 120th min. A questionnaire was used for subjective estimation of the organoleptic and satiety features of the two types of bread.
RESULTS
Compared to patients who consumed rye bread, significantly lower postprandial blood glucose and insulin concentrations were found in T2DM patients who consumed STB. No relevant differences were found among the healthy subjects. Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread.
CONCLUSION
STB have better effects than rye bread on postprandial glucoregulation in T2DM patients. Subjectively estimated organoleptic and satiety characteristics are better for STB than for rye bread. Therefore, STB can be recommended for nutrition in T2DM patients.
Correlation of periodontal inflamed surface area with glycated hemoglobin, interleukin-6 and lipoprotein(a) in type 2 diabetes with retinopathy
Authors: Thazhe Poyil Nusreen Jamal , Vadakkekuttical Rosamma Joseph , Radhakrishnan Chandni 
Published: April 2024

BACKGROUND
The two-way relationship between periodontitis and type 2 diabetes mellitus (T2DM) is well established. Prolonged hyperglycemia contributes to increased periodontal destruction and severe periodontitis, accentuating diabetic complications. An inflammatory link exists between diabetic retinopathy (DR) and periodontitis, but the studies regarding this association and the role of lipoprotein(a) [Lp(a)] and interleukin-6 (IL-6) in these conditions are scarce in the literature.
AIM
To determine the correlation of periodontal inflamed surface area (PISA) with glycated Hb (HbA1c), serum IL-6 and Lp(a) in T2DM subjects with retinopathy.
METHODS
This cross-sectional study comprised 40 T2DM subjects with DR and 40 T2DM subjects without DR. All subjects were assessed for periodontal parameters [bleeding on probing (BOP), probing pocket depth, clinical attachment loss (CAL), oral hygiene index-simplified, plaque index (PI) and PISA], and systemic parameters [HbA1c, fasting plasma glucose and postprandial plasma glucose, fasting lipid profile, serum IL-6 and serum Lp(a)].
RESULTS
The proportion of periodontitis in T2DM with and without DR was 47.5% and 27.5% respectively. Severity of periodontitis, CAL, PISA, IL-6 and Lp(a) were higher in T2DM with DR group compared to T2DM without DR group. Sig-nificant difference was observed in the mean percentage of sites with BOP between T2DM with DR (69%) and T2DM without DR (41%), but there was no significant difference in PI (P > 0.05). HbA1c was positively correlated with CAL (r = 0.351, P = 0.001), and PISA (r = 0.393, P ≤ 0.001) in study subjects. A positive correlation was found between PISA and IL-6 (r = 0.651, P < 0.0001); PISA and Lp(a) (r = 0.59, P < 0.001); CAL and IL-6 (r = 0.527, P < 0.0001) and CAL and Lp(a) (r = 0.631, P < 0.001) among study subjects.
CONCLUSION
Despite both groups having poor glycemic control and comparable plaque scores, the periodontal parameters were higher in DR as compared to T2DM without DR. Since a bidirectional link exists between periodontitis and DM, the presence of DR may have contributed to the severity of periodontal destruction and periodontitis may have influenced the progression of DR.