bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Unique Low-mass-ratio Contact Eclipsing Binary System under the Period Cutoff
Authors: Papageorgiou Athanasios , Christopoulou Panagiota-Eleftheria , Lalounta Eleni , Ferreira Lopes C. E. , Catelan Márcio , Drake Andrew J. , Ηantzios Panayiotis , Alikakos Ioannis 
Published: July 2023

Abstract
We present a multiband photometric analysis of CRTS J163819.6+03485, the first low-mass-ratio contact binary system with a period of 0.2053321 day under the contact binary period limit. The unprecedented combination of mass ratio and period makes this system unique for eclipsing binary (EB) research. Using new multiband photometric observations, we explored the parameter space of this unique total EB system through a detailed scan in the mass ratio–inclination plane and using the pikaia genetic algorithm optimizer. The best set of relative physical parameters and corresponding uncertainties was adopted through Markov Chain Monte Carlo sampling of the parameter space. The resulting mass ratio of the system is q = 0.16 ± 0.01. The absolute parameters were derived by adopting an empirical mass–luminosity relation. Period changes are also investigated by using new observations and archival photometric light curves from massive astronomical surveys, which revealed in a preliminary solution the presence of a possible low-mass tertiary companion. The origin and evolutionary status of the system are investigated through the detached binary formation scenario.
Coevolution of Dust and Chemistry in Galaxy Simulations with a Resolved Interstellar Medium
Authors: Hu 胡 Chia-Yu 家瑜 , Sternberg Amiel , van Dishoeck Ewine F. 
Published: July 2023

Abstract
Nearby dwarf irregular galaxies are ideal laboratories for studying the interstellar medium (ISM) at low metallicity, which is expected to be common for galaxies at very high redshift being observed by JWST. We present the first high-resolution (∼0.2 pc) hydrodynamical simulations of an isolated low-metallicity (0.1 Z
⊙) dwarf galaxy coupled with a time-dependent chemistry network and a dust evolution model where dust is locally produced and destroyed by various processes. To accurately model carbon monoxide (CO), we post-process the simulations with a detailed chemistry network including the time-dependent effect of molecular hydrogen (H2). Our model successfully reproduces the observed star formation rate and CO(1–0) luminosity (L
CO). We find that dust growth in dense gas is required to reproduce the observed L
CO otherwise CO would be completely photodissociated. In contrast, the H2 abundance is extremely small and is insensitive to dust growth, leading to a CO-to-H2 conversion factor that is only slightly higher than the Milky Way value despite the low metallicity. An observationally inferred dust-to-gas ratio is thus underestimated if adopting the metallicity-dependent CO-to-H2 conversion factor. The newly produced dust in dense gas mixes with the ISM through supernova feedback without being completely destroyed by sputtering, which leads to galactic outflows 20%–50% dustier than the ISM, providing a possible source for intergalactic dust.
Derivation of Instrument Requirements for Polarimetry Using Mg, Fe, and Mn Lines between 250 and 290 nm
Authors: de Wijn A. G. , Judge P. G. , Ezzeddine R. , Sainz Dalda A. 
Published: July 2023

Abstract
Judge et al. recently argued that a region of the solar spectrum in the near-UV between about 250 and 290 nm is optimal for studying magnetism in the solar chromosphere, due to an abundance of Mg ii, Fe ii, and Fe i lines that sample various heights in the solar atmosphere. In this paper, we derive requirements for spectropolarimetric instruments to observe these lines. We derive a relationship between the desired sensitivity to magnetic field and the signal-to-noise ratio of the measurement from the weak-field approximation of the Zeeman effect. We find that many lines will exhibit observable polarization signals for both longitudinal and transverse magnetic field with reasonable amplitudes.
Systematically Measuring Ultra-diffuse Galaxies (SMUDGes). V. The Complete SMUDGes Catalog and the Nature of Ultradiffuse Galaxies
Authors: Zaritsky Dennis , Donnerstein Richard , Dey Arjun , Karunakaran Ananthan , Kadowaki Jennifer , Khim Donghyeon J. , Spekkens Kristine , Zhang 张 Huanian 华年 
Published: July 2023

Abstract
We present the completed catalog of ultradiffuse galaxy (UDG) candidates (7070 objects) from our search of the DR9 Legacy Survey images, including distance and total mass estimates for 1529 and 1436 galaxies, respectively, that we provide and describe in detail. From the sample with estimated distances, we obtain a sample of 585 UDGs (μ
0,g
≥ 24 mag arcsec−2 and r

e
≥ 1.5 kpc) over 20,000 square degrees of sky in various environments. We conclude that UDGs in our sample are limited to 1010 ≲ M

h
/M
⊙ ≲ 1011.5 and are on average a factor of 1.5–7 deficient in stars relative to the general population of galaxies of the same total mass. That factor increases with increasing galaxy size and mass up to a factor of ∼10 when the total mass of the UDG increases beyond M

h
= 1011
M
⊙. We do not find evidence that this factor has a dependence on the UDGs large-scale environment.
Volatile-to-sulfur Ratios Can Recover a Gas Giant’s Accretion History
Authors: Crossfield Ian J. M. 
Published: July 2023

Abstract
The newfound ability to detect SO2 in exoplanet atmospheres presents an opportunity to measure sulfur abundances and so directly test between competing modes of planet formation. In contrast to carbon and oxygen, whose dominant molecules are frequently observed, sulfur is much less volatile and resides almost exclusively in solid form in protoplanetary disks. This dichotomy leads different models of planet formation to predict different compositions of gas giant planets. Whereas planetesimal-based models predict roughly stellar C/S and O/S ratios, pebble-accretion models more often predict superstellar ratios. To explore the detectability of SO2 in transmission spectra and its ability to diagnose planet formation, we present a grid of atmospheric photochemical models and corresponding synthetic spectra for WASP-39b (where SO2 has been detected). Our 3D grid contains 113 models (spanning 1–100× the solar abundance ratio of C, O, and S) for thermal profiles corresponding to the morning and evening terminators, as well as mean terminator transmission spectra. Our models show that for a WASP-39b-like O/H and C/H enhancement of ∼10× solar, SO2 can only be seen for C/S and O/S ≲ 1.5× solar, and that WASP-39b’s reported SO2 abundance of 1–10 ppm may be more consistent with planetesimal accretion than with pebble-accretion models (although some pebble models also manage to predict similarly low ratios). More extreme C/S and O/S ratios may be detectable in higher-metallicity atmospheres, suggesting that smaller and more metal-rich gas and ice giants may be particularly interesting targets for testing planet formation models. Future studies should explore the dependence of SO2 on a wider array of planetary and stellar parameters, both for the prototypical SO2 planet WASP-39b, as well as for other hot Jupiters and smaller gas giants.
Confronting the Neutron Star Population with Inverse Cascades
Authors: Sarin Nikhil , Brandenburg Axel , Haskell Brynmor 
Published: July 2023

Abstract
The origin and evolution of magnetic fields of neutron stars from birth have long been a source of debate. Here, motivated by recent simulations of the Hall cascade with magnetic helicity, we invoke a model where the large-scale magnetic field of neutron stars grows as a product of small-scale turbulence through an inverse cascade. We apply this model to a simulated population of neutron stars at birth and show how this model can account for the evolution of such objects across the

P

P

̇

diagram, explaining both pulsar and magnetar observations. Under the assumption that small-scale turbulence is responsible for large-scale magnetic fields, we place a lower limit on the spherical harmonic degree of the energy-carrying magnetic eddies of ≈40. Our results favor the presence of a highly resistive pasta layer at the base of the neutron star crust. We further discuss the implications of this paradigm on direct observables, such as the nominal age and braking index of pulsars.
The Structure of Coronal Mass Ejections Recorded by the K-Coronagraph at Mauna Loa Solar Observatory
Authors: Song Hongqiang , Li Leping , Zhou Zhenjun , Xia Lidong , Cheng Xin , Chen Yao 
Published: July 2023

Abstract
Previous survey studies reported that coronal mass ejections (CMEs) can exhibit various structures in white-light coronagraphs, and ∼30% of them have the typical three-part feature in the high corona (e.g., 2–6 R
⊙), which has been taken as the prototypical structure of CMEs. It is widely accepted that CMEs result from eruption of magnetic flux ropes (MFRs), and the three-part structure can be understood easily by means of the MFR eruption. It is interesting and significant to answer why only ∼30% of CMEs have the three-part feature in previous studies. Here we conduct a synthesis of the CME structure in the field of view (FOV) of K-Coronagraph (1.05–3 R
⊙). In total, 369 CMEs are observed from 2013 September to 2022 November. After inspecting the CMEs one by one through joint observations of the Atmospheric Imaging Assembly, K-Coronagraph, and LASCO/C2, we find 71 events according to the criteria: (1) limb event; (2) normal CME, i.e., angular width ≥30°; (3) K-Coronagraph caught the early eruption stage. All (or more than 90% considering several ambiguous events) of the 71 CMEs exhibit the three-part feature in the FOV of K-Coronagraph, while only 30%–40% have the feature in the C2 FOV (2–6 R
⊙). For the first time, our studies show that 90%–100% and 30%–40% of normal CMEs possess the three-part structure in the low and high corona, respectively, which demonstrates that many CMEs can lose the three-part feature during their early evolutions, and strongly supports that most (if not all) CMEs have the MFR structures.
La matérialité du texte au service d’une micro-histoire du Rocher aux Vautours (Elkab). (1) L’apport de la stratigraphieطرائق كتابة النّص لخدمة التَّاريخ الجزئي لصخرة النسور (الكاب). (١) إسهام علم طبقات الأرض
Authors: Brémont Axelle 
Published: July 2023

Le corpus de gravures rupestres du « Rocher aux Vautours », un large inselberg isolé dans l’arrière-pays d’Elkab, n’a jamais fait l’objet d’une publication complète intégrant à la fois ses nombreuses inscriptions hiéroglyphiques de l’Ancien Empire (dont la traduction et une étude de synthèse ont été publiées en 2001) et ses graffiti figurés, s’étalant de la période nagadienne au début de l’ère chrétienne. La reprise de son étude par la mission conjointe Yale University–Musées Royaux d’Art et d’Histoire de Bruxelles, dirigée par John C. Darnell et Wouter Claes, offre l’occasion d’en reprendre la documentation exhaustive en s’attardant plus particulièrement sur les conditions de réalisation matérielle des gravures. En passant en revue diverses méthodes d’étude (paléographie, application au matériel rupestre des principes de la stratigraphie, analyses de réseau), chacune illustrée par une étude de cas tirée du Rocher aux Vautours, cet article confirme combien l’analyse prosopographique et l’étude des superpositions et de l’économie d’occupation de la surface rocheuse peuvent se compléter et se nourrir l’une l’autre. La particularité des inscriptions hiéroglyphiques du Rocher aux Vautours, très ramassées chronologiquement (Ve dynastie-Première Période intermédiaire) permet même d’envisager une perspective de micro-histoire, afin d’examiner les relations au sein de ce groupe social et leurs pratiques de gravure dans le désert à l’échelle de quelques générations.
Enhancing Visibility: Djehutihotep’s Painter Horamenyankhuمن أجل رؤية أفضل: رَسَّام ﺪﭼحوتي حتب المدعو حورآمون يانخو
Authors: Devillers Alisée , Sykora Toon 
Published: July 2023

This paper aims to evaluate the attestations of the people responsible for the creation and decoration of Djehutihotep’s tomb at Dayr al-Barshā. In particular, it focuses on the self-depictions of its senior artist, Horamenyankhu. The self-presentation of this artist is not limited to his choice of titles nor the apparel and attributes with which he depicts himself. It also includes less formal, but by no means less visually potent, artistic and compositional techniques that emphasize his contribution. After examining these aspects, Horamenyankhu’s attestations are framed within the traditions of artistic self-representation. Through these, it becomes possible to evaluate the exceptionality of his case.
Border une allée vers la Douat ? Les divinités sous la forme de sphinx au début de la Troisième Période intermédiaireعلى حدود ممر نحو اﻠ«دوات»؟ الآلهة على شكل أبي الهول في بداية عصر الانتقال الثالث
Authors: Joubert Émil 
Published: July 2023

Des représentations de sphinx apparaissent sur quelques cercueils de la XXIe dynastie avant de devenir plus nombreuses par la suite. Elles surprennent par leur multiplication en contexte funéraire et leur nouvelle fonction : plutôt qu’une figure royale, plusieurs sont en effet désignées comme des divinités souvent inaccoutumées à l’aspect qui leur est ainsi donné. Les cercueils externes de Soutymes, Seramon et Taoudjatrâ élaborent ce motif sous la forme d’une frise. Le contexte suggère plusieurs pistes d’interprétation. Les allées de sphinx de la région thébaine sont alors réorganisées, peut-être par des directeurs de travaux tels que Seramon et Soutymes. Les statues y semblent parfois réinterprétées comme des images divines plus accessibles. Leur position à l’entrée des temples se refléterait dans celle des figures de sphinx en bordure des cercueils externes, insistant sur leur caractère liminaire et protecteur.
Pregnancy outcomes following supplementation of single dose GnRH agonist to sustain the luteal phase in antagonist fresh embryo transfer cycles: A multicentric prospective cohort study
Authors: Parvathi Devi Tatapudi S V , Gahlot Alka , Sharma Sangita , Choudhary Manisha , Soni Ravikant , Sharma Meeta 
Published: July 2023

Objective:
To determine whether a single dose of gonadotropin-releasing hormone (GnRH) agonist administered subcutaneously in addition to the regular progesterone supplementation could provide a better luteal support in antagonist protocol fresh embryo transfer cycles.

Methods:
This prospective, multicentric, cohort study included total 140 women, 70 in each group. Controlled ovarian stimulation was carried out as per fixed GnRH antagonist protocol. The trigger was given with hCG. In vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) was performed and day-3 embryos were transferred. Patients were divided into groups 1 and 2 based on computer generated randomization sheet. Six days following oocyte retrieval, group 1 received 0.2 mg decapeptyl subcutaneously in addition to regular progesterone support while group 2 received progesterone only. Luteal support was given for 14 days to both groups; if pregnancy was confirmed luteal support was continued till 12 weeks of gestation. The clinical pregnancy rate was the primary outcome. The implantation rate, miscarriage rate, live birth delivery rate, and multiple pregnancy rates were the secondary outcomes.

Results:
A total of 140 patients were analysed, 70 in each group. Clinical pregnancy rates (47.1% vs. 35.7%; P=0.17), implantation rates (23.4% vs. 18.1%, P=0.24), live birth delivery rates (41.4% vs. 27.1%, P=0.08), and multiple pregnancy rates (21.2% vs. 16.0%, P=0.74) were higher in group 1 than in group 2. Group 1 had a lower miscarriage rate than group 2 (5.7% vs. 8.6%; P=0.75). However, these differences were not statistically significant between the two groups.

Conclusions:
Administration of a single dose of GnRH agonist in addition to regular natural micronized vaginal progesterone as luteal support in GnRH antagonist protocol cycles marginally improves implantation rates, clinical pregnancy rates, and live birth delivery rates. However, more studies with higher sample sizes are needed before any conclusive statements about GnRH agonist as luteal phase support can be made.
Oxidized palm oil impairs reproductive functions and architectures in female rats
Authors: Modeste Wankeu-Nya , Kengne Inès T , Ateba Benjamin S , Bend Fortune E , Djeumeni Ornela N , Hatho Dominique T , Ngadjui E , Moundipa Paul F , Massoma Dieudonné L , Dongmo Alain B , Pierre Watcho 
Published: July 2023

Objective:
To evaluate the effects of three oxidized palm oil diets (OPD) on female rat reproductive function.

Methods:
Forty-four female Wistar rats presenting five consecutive and regular estrous cycles were divided into 4 groups. The rats were fed with: a standard diet, 70% of standard diet+30% oxidized palm oil diet (OPD1), OPD1+5 g of boiled yolk egg (OPD2) and OPD1+10% sucrose (OPD3) for 125 days, respectively. During the feeding period, morphometric, estrous cycle, sexual behavior, gestation, biochemical and histomorphometric parameters were evaluated.

Results:
All OPDs significantly increased abdominal circumference, body mass index and Lee index coupled to an irregularity and lengthening of the estrous cycle. They significantly decreased appetite and consumption behaviours, quantic pregnancy index, fertility rate, implantation sites and index, serum progesterone and high-density lipoprotein levels, increased pre-implantation losses, anti-implantation activities, serum estradiol, triglycerides, total and low-density lipoprotein-cholesterol levels, and impaired brain and ovaries oxidative status. Histomorphometric examinations revealed increases in the number of atresic and primary follicles and decreases in secondary, tertiary, Degraaf, total and corpus luteum follicles in ovaries coupled to a neurodegeneration of hypothalamic anteroventral periventricular neurons in the OPD groups compared to the standard diet group.

Conclusions:
The three OPDs induce obesity and impair the female reproductive function, especially OPD2 and OPD3. These findings contribute to a better understanding of the adverse effects of palm oil bleaching on the reproductive function in female rats, which could be useful in the management of women with obesity-related sexual dysfunction.
Determination of the ovine ovarian reserve during the prenatal and neonatal periods
Authors: Sharum Isam B. 
Published: July 2023

Objective:
To determine the ovine ovarian histomorphology and follicular staging at various age periods in Awassi breed.

Methods:
Ovaries were collected from prenatal fetuses [gestational age (95±5) days], neonatal (day 0), and prepubertal ewe lambs (two and four months of age); each age group included six animals. Ovaries (n=12, each group) were dissected and processed for hematoxylin and eosin staining. Stained sections (n=24, each group) were imaged and utilized for histomorphology assessment, follicle measurement, and classification.

Results:
Prenatal ovaries were mainly enriched with primordial follicles accompanied by a lower proportion of primary follicles. In addition to primordial and primary follicles, neonatal ovaries demonstrated a proportion of centrally located multilayered and antral follicles. In comparison with neonatal ovaries, the proportion of multilayered and antral follicles was significantly higher in the ovaries of two-month-old lambs; conversely, the proportion of peripherally situated primordial follicles dramatically declined compared to that of earlier age of lamb. Although there was no statistical variation in the sizes of primordial follicles across groups, the mean diameter of the primary follicle in the prenatal ovaries was substantially smaller than in postnatal ovaries. Compared to the neonatal ovaries, the size of the multilayered and antral follicles in the prepubertal ovaries was substantially larger.

Conclusions:
The earliest follicular developmental stages were established prenatally whereas the advanced growth stages started in the neonatal period and greatly increased in the prepubertal period.
A prospective study of amelioration of cognitive functions following alcohol abstinence in patients with alcohol dependence syndrome
Authors: Endreddy Ananda Reddy , Rajesh CH. Lakshmi , Seshamma VV 
Published: July 2023

Abstract

Background:
Increased intake of alcohol causes changes in the cognitive process, affecting many important functions such as execution, recent memory, and visuospatial abilities. Sometimes changes imparted by alcohol use are irreversible.

Aims and Objectives:
The impairments caused by alcohol abuse are usually underdiagnosed even though they are moderate to severe. To this purpose, we studied the cognitive improvement on abstinence of alcohol use.

Materials and Methods:
The present study was done in 100 patients, whose diagnosis was made as per the International Classification of Disorders-10 as alcohol dependence syndrome. Patients were administered with the scales, the Severity of Alcohol Dependence Questionnaire (SAD-Q), Montreal Cognitive Assessment, Postgraduate Inventory Battery of Brain Dysfunction (PGIBBD), Trail Making Test-B, Digit Span Test, and Digit Vigilance Test. The evaluation of patients was done after 2 weeks of the last alcohol intake and reassessed at the end of the 3rd and 6th months, scores were compared. Analysis of data was done by using mean and standard deviation for continuous variables. The categorical variables were presented as frequency and percentages, and the comparisons between the quantitative data were done by analysis of variance test.

Results:
The cognitive assessment revealed impairments in executive function, short-term verbal memory, recent memory, visuospatial abilities, visual recognition, and processing speed on initial evaluation, and all the values improved in 6 months of abstinence.

Conclusions:
In this study, we found, there was significant impairment in memory, executive function, processing speed, visuospatial and recognition skills, initially, and improvement in cognitive function in alcohol.
Ischemic fasciitis scalp-unusual presentation and location
Authors: John Preeti J. , Mahajan Richa , Kwatra Kanwardeep Singh , Singh Savreet Pal 
Published: July 2023

ABSTRACT
We report a case of ischemic fasciitis in a 34-year-old male patient who presented with hard swelling on the anterior aspect of the scalp measuring 5 × 4 cm. He gave a history of wearing a tight turban constantly for many years. The lesion initially presented as redness of the skin, which gradually became a nodular swelling over 2 years. A computed tomography (CT) scan showed conical solid soft tissue attenuation mass. The operative findings were suspicious of neoplasm. However, the microscopic findings were typical of ischemic fasciitis, that is, a zonal pattern with central hypocellular fibrinoid necrosis surrounded by more cellular areas containing prominent proliferating neovessels and fibroblasts resembling granulation tissue. Ischemic fasciitis of the scalp is extremely rare, the present case occurred as a result of ischemia continuously exerted due to wearing a tight turban. This case highlights the importance of eliciting relevant case history and avoids histological misinterpretation of this pseudo-neoplastic lesion.