bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unveiling the Origins and Dynamics of the Hierarchical Triple Star System CN Lyn
Authors: Yücel Gökhan , Bakış Volkan , Canbay Remziye , Alan Neslihan , Banks Timothy , Bilir Selçuk 
Published: January 2025

Abstract
In this study, we present a detailed analysis of CN Lyn, an overlooked triple star system, by combining spectroscopic data from the literature, photometric Transiting Exoplanet Survey Satellite data, and kinematic techniques. We updated the fundamental parameters of the known eclipsing components in the system with high precision. The chemical composition of both eclipsing components (Aab) and the third component (B) in the system were calculated with great accuracy. According to our analysis the mass, radius, and metallicity of the eclipsing components are

1.16

6

−
0.012

+
0.013

M

⊙

,

1.78

6

−
0.014

+
0.013

R

⊙

, and

−
0.7

8

−
0.02

+
0.02

dex for Aa and

1.14

3

−
0.012

+
0.013

M

⊙

,

1.65

1

−
0.013

+
0.014

R

⊙

, and

−
0.5

5

−
0.02

+
0.03

dex for Ab. The pair’s age is

3.8

9

−
0.10

+
0.10

Gyr. The mass, radius, metallicity, and age for B are

0.8

5

−
0.23

+
0.23

M

⊙

,

1.43

6

−
0.023

+
0.026

R

⊙

,

−
1.8

3

−
0.11

+
0.09

dex, and

12
.

5

−
2.5

+
2.5

Gyr, respectively. It is also found that the triple system (AabB) satisfies the stability criteria for the hierarchical triple system. Kinematic and Galactic orbital parameters of CN Lyn were obtained from the astrometric and spectroscopic data of the system. Dynamical orbital analyses, taking into account the ages of the component stars in the central binary system (A), show that the CN Lyn originated at the metal-poor edge of the Galactic disk. The third component of the system was found to be a member of the halo population in terms of age, α elements, and metal abundance. Given the different chemical abundances and age of B compared to A, this suggests that the third component was captured by the central system in a region with weak gravitational interactions far beyond the Galactic disk.
Implication of Galaxy-scale Negative Feedback by One of the Most Powerful Multiphase Outflows in a Hyperluminous Infrared Galaxy at Intermediate Redshift
Authors: Chen Xiaoyang , Akiyama Masayuki , Ichikawa Kohei , Toba Yoshiki , Kawaguchi Toshihiro , Izumi Takuma , Saito Toshiki , Iono Daisuke , Imanishi Masatoshi , Lee Kianhong , Nagai Hiroshi , Noda Hirofumi , Abdurro’uf  , Kokubo Mitsuru , Matsumoto Naoki 
Published: January 2025

Abstract
Powerful galactic outflows driven by active galactic nuclei (AGNs) are commonly considered as one of the main mechanisms to regulate star formation in massive galaxies. Ultra- and hyperluminous IR galaxies (U/HyLIRGs) are thought to represent a transition phase of galaxies from a rapidly growing period to a quiescent status as gas is swept out by outflows, providing a laboratory in which to investigate outflows and their feedback effects on hosts. In this paper we report recent Gemini and Atacama Large Millimeter/submillimeter Array (ALMA) observations of a HyLIRG, J1126, at z = 0.46842, which has been identified with a puzzling coexistence of a fast ionized outflow (>2000 km s−1) and an intense starburst (star formation rate of 800 M
⊙ yr−1). The Gemini observation shows the fast ionized outflow is extended to several kiloparsecs with a mass-loss rate of 180 M
⊙ yr−1. A massive molecular outflow with a high mass-loss rate (2500 M
⊙ yr−1) is revealed by ALMA. The multiphase outflows show large factors of momentum boost and loading of kinetic power, indicating a driving by the thermal pressure of a nuclear hot wind and/or the radiation pressure of a highly obscured AGN. In addition to ejection of kinetic energy, it is also found that the powerful outflow can induce an ionizing shock in the galaxy disk and enhance the excitation and dissociation of molecular gas. The powerful outflow probably results in an instantaneous negative feedback and shows potential to regulate host growth in the long term.
Type IV-like Solar Radio Burst Consisting of a Series of Short-time Bursts Observed by PSP
Authors: Ma 马 Bing 兵 , Chen 陈 Ling 玲 , Wu 吴 Dejin 德金 , Ning 宁 Zongjun 宗军 , Pulupa Marc , Bale Stuart D. 
Published: January 2025

Abstract
Solar and interplanetary radio bursts can reflect the existence and motion of energetic electrons and are therefore a kind of vital phenomenon in solar activities. The present study reported a solar radio storm observed by the Parker Solar Probe (PSP) in its eighth orbital encounter phase, and it lasted about 20 hr in a frequency range of 0.5–15 MHz, called the type IV-like burst. It consists of a series of numerous short-time (ST) bursts with the central frequency drifting slowly from ~5 to ~1 MHz, and each individual ST burst appears at a much faster frequency drifting rate and has a typical frequency range of a few MHz and a short duration of about 1–4 minutes. Based on the empirical models of the solar atmosphere adopted commonly, combining the in situ measurement by PSP, we analyzed and compared some possible mechanisms for the generation of these small-scale ST bursts and proposed that they were generated probably by a group of solitary kinetic Alfvén waves (SKAWs) in a magnetic loop accompanying coronal mass ejection and slowly moving outward, in which the frequency drifting of individual ST burst is caused by the SKAW's propagation and the central frequency drifting may be attributed to the motion of the magnetic loop.
Line List for the A2Π−X2Σ+ and the B2Σ+−X2Σ+ Band Systems of CaF
Authors: Lavy Léo , Bernath Peter F , Pastorek Adam 
Published: January 2025

Abstract
The spectral analysis of molecule-rich asymptotic giant branch (AGB) stars is challenging. Although other calcium and fluorine bearing molecules are observed in the microwave and in the visible spectrum of AGB stars, CaF has never been detected, despite favorable chemical equilibrium predictions. Yet, measuring the CaF abundance could give more insight into the fluorine budget of AGB stars and allow better simulation of stellar spectra. In this work, we present an analysis of the visible spectrum of CaF obtained with a Fourier transform spectrometer. CaF A
2Π−X
2Σ+ and B
2Σ+−X
2Σ+ band systems were excited with a hollow cathode discharge. Using previous fluorescence spectroscopy measurements, highly accurate ground state constants, and reasonable extrapolation schemes, the strongest features of CaF in the visible spectrum can be accurately modeled for both band systems. Spectroscopic constants are determined for A
2 Π with v ≤ 16 and for B
2Σ+ with v ≤ 20. Ab initio transition dipole moment curves of both transitions were calculated and scaled, and we provide a line list with Einstein A coefficients and oscillator strengths. This line list can be used to simulate spectra of CaF at temperatures and pressures relevant to astrophysical environments.
Photolysis and Sublimation Chemistry of Ammonium Cyanide with Relevance to Cometary Environments
Authors: Wilkins O. H. , Yocum K. M. , Esposito V. J. , Harel E. , Milam S. N. , Gerakines P. A. 
Published: January 2025

Abstract
Bulk nitrogen is depleted in solar system objects, including the terrestrial planets, chondritic meteorites, and comets. Recently, it was suggested that cometary nitrogen may be locked up in ammonium salts—ionic solids comprising ammonia (NH3) and an acid such as hydrogen cyanide (HCN)—based on Rosetta/ROSINA data from comet 67P/Churyumov–Gerasimanko. Among the proposed salts to have been found in 67P were ammonium cyanide (

NH

4

CN

) and ammonium cyanate (

NH

4

OCN

), which were inferred from identifying HCN, cyanamide (

NH

2

CN

), and isocyanic acid (HNCO) in the mass spectrometry data collected in the coma of 67P. However, the relationship between these salts and the proposed tracers had not previously been studied experimentally. We investigated the ultraviolet photolysis and sublimation chemistry of

NH

4

CN

and

NH

3

+
HCN
+

H

2

O

samples formed at 125 K in the laboratory and monitored the ice samples and resulting gas mixtures using infrared and submillimeter spectroscopies, respectively. We find

NH

2

CN

forms from

NH

4

CN

but only in the presence of water. When starting from salts, both

NH

2

CN

and HNCO seem to form only in the gas phase as the salts dissociate upon sublimation and not in the photolyzed ice.
Association between abatacept exposure levels and infection occurrence in patients with rheumatoid arthritis: post hoc analysis of the AVERT-2 study
Authors: Emery Paul , Fleischmann Roy , Wong Robert , Lozenski Karissa , Tanaka Yoshiya , Bykerk Vivian P. , Bingham Clifton O. , Huizinga Thomas W.J. , Citera Gustavo , Perera Vidya , Murthy Bindu , Maxwell Kelly Fellows , Passarell Julie , Hedrich William D , Williams Daphne 
Published: January 2025

ObjectiveTo determine if higher serum exposure during subcutaneous (SC) abatacept treatment was associated with an increased infection risk in adult patients with early rheumatoid arthritis (RA).MethodsData from AVERT-2 (Assessing Very Early Rheumatoid arthritis Treatment-2,NCT02504268), a randomized, placebo-controlled study in anticitrullinated protein antibody– positive patients with early RA, were analyzed. A post hoc population pharmacokinetic (PPK) analysis was performed. Association between steady-state abatacept concentration exposures (steady-state time-averaged serum concentration, steady-state trough serum concentration, steady-state maximum serum concentration) and first infection was evaluated using Kaplan–Meier plots of probability versus time on treatment and Cox proportional-hazards models.ResultsPK of SC abatacept was defined as a linear 2-compartment model with first-order absorption and elimination; higher body weight was the only covariate with a clinically relevant effect in the final PPK model. Infections occurred in 330/693 (47.6%; 11/693 [1.6%] serious infections) patients treated with abatacept+methotrexate (MTX) and 134/301 (44.5%; 4/301 [1.3%] serious infections), with abatacept placebo+MTX. Exposure–response analysis demonstrated no exposure relationship for an increased risk of first infection with concomitant use of MTX and glucocorticoids during the induction period, baseline glucocorticoid use, or higher than median body weight at baseline (> 70 kg).ConclusionThis exposure–response analysis of AVERT-2 showed no increase in the risk of first infection, regardless of abatacept exposure level in patients with RA treated with SC abatacept. Similarly, no effect on the risk of first infection was found for concomitant MTX and glucocorticoid use in patients with RA treated with SC abatacept+MTX.
Association Between Patient Perception of Disease Status and Different Components of the Minimal Disease Activity Criteria in Psoriatic Arthritis
Authors: Yazji Sarah M. , Helliwell Philip S. , Balanescu Andra , Dernis Emmanuelle , Kiltz Uta , Kalyoncu Umut , Leung Ying Ying , Orbai Ana-Maria , Smolen Josef S. , de Wit Maarten , Gossec Laure , Coates Laura C. 
Published: January 2025

ObjectiveThe aim of this study was to evaluate whether meeting minimal disease activity (MDA) as measured by the MDA criteria was perceived as good disease control by patients with psoriatic arthritis (PsA) regardless of which MDA components were not met.MethodsWe analyzed data from the Remission/Flare in PsA (ReFlaP) study (ClinicalTrials.gov:NCT03119805), a cross-sectional international study of adult patients with PsA. Patients self-reported if they felt their PsA was in remission (REM), low disease activity (LDA), or neither. The relationship between patient-reported status and the MDA components met was analyzed using point-biserial correlation, chi-square test, odds ratios, and specificity.ResultsOf the study participants who met MDA, 88.4% reported good disease status (REM/LDA). Pain was the most commonly unmet component. A moderate to strong correlation was found between meeting more MDA components and patient-reported good status irrespective of component unmet. On individual component testing, MDA state and patient-reported REM/LDA were significantly associated irrespective of unmet component, with the exception of entheses. Specificity of the MDA score irrespective of the unmet component was > 90%. The odds of MDA patients reporting poor disease status were significant only for when pain visual analog score (VAS) < 1 was the unmet component. This significance was not supported by the sensitivity analysis.ConclusionThis study suggests strong agreement between MDA status and patient-reported good status irrespective of unmet component. Pain < 1 or 2 on a 0-10 VAS was the hardest component to meet. The high specificity regardless of the unmet MDA component suggests patients who feel their disease is active are minimally misclassified by the score.
Risk factor clusters for non-communicable diseases in adolescents in Eastern Cape, South Africa
Authors: Mathe Avela , Van Gent Maya M. , Van Niekerk Leon R. 
Published: January 2025

Background: The increasing prevalence of non-communicable diseases (NCDs) among adolescents in South Africa is a growing public health concern.Aim: To examine the clustering of NCD risk factors, with a focus on gender, socio-economic status (SES) and perceived stress among adolescents.Setting: The study involved adolescents from eight schools in Buffalo City Metropolitan Municipality and Amatole district, Eastern Cape.Methods: A stratified random sample of 266 adolescents (aged 12 years–18 years) was assessed for anthropometric, physiological, and perceived stress measures. Data included body mass index (BMI), blood pressure (BP), cholesterol, glucose levels, and perceived stress (via the Perceived Stress Scale). Analysis involved descriptive statistics, Chi-square tests, t-tests, and k-means clustering.Results: Females (n = 155) showed a higher prevalence of NCD risk factors, with 80.2% classified as overweight or obese compared to 19.8% of males, and 77.2% had elevated cholesterol versus 22.8% of males. Perceived stress was higher in affluent schools (59.8%) despite fewer metabolic risks. K-means analysis identified four health profiles with significant SES and health differences (p 0.001). Cluster 1 (high SES) showed elevated BP, BMI, and stress, while Clusters 2–4 (low SES) varied in risks, with Cluster 4 showing the highest BP and metabolic risks despite low stress.Conclusion: These results highlight unique health profiles and risk factors across socio- economic contexts, with female adolescents from lower socio-economic backgrounds facing greater metabolic risks.Contribution: This Study provides original insights into the interplay between gender, SES and perceived stress in shaping NCD risk among South African adolescents.
Missional insights on socio-political realities, religious vulnerability, and the choice of Barabbas
Authors: Ferreira Ignatius W. 
Published: January 2025

This article presents a missional perspective on the complex interplay between socio-political realities, religious vulnerability and the formation of political ideologies among Western Christians, drawing insights from the biblical narrative of the choice of Barabbas at Jesus’s trial. In today’s world, Western Christians are confronted with numerous socio-political challenges that can compromise their spiritual discernment, leading to religious delusion and, potentially, the adoption of politicised ideologies. Through a deep dive into the Jewish choice of Barabbas over Jesus, we seek to unravel the underlying dynamics. By examining the socio-political context of Roman occupation and Jewish societal pressures, we illuminate how these external factors influenced the religious vulnerability of the Jewish people. Furthermore, we explore how this vulnerability manifested in the decision to prefer Barabbas, a figure representing worldly resistance, over Jesus Christ, the embodiment of divine grace. From a missional perspective, we reflect on the implications of this historical event for contemporary Western Christian engagement with socio-political issues. We argue that understanding the delicate interplay between socio-political context, religious vulnerability and political ideology is essential for Western Christians seeking to embody the transformative mission of Christ in today’s world.Contribution: This article contributes to missional theology by offering insights into how believers can navigate socio-political complexities with spiritual discernment and faithful witness.
COVID-19 in patients with severe mental illness: An analysis of in-patients at a psychiatric hospital in Cape Town
Authors: Sablay Haseena B. , Cossie Qhama Z. , Pieterse Deirdre I. 
Published: January 2025

Background: Psychiatric patients in specialist units are more vulnerable to infections such as SARS-COV-2 (severe acute respiratory syndrome coronavirus 2) because of hospital infrastructure and patients’ mental health.Aim: This study aimed to describe the psychiatric and medical profile, and the risk factors associated with more severe disease and clinical outcomes of coronavirus disease 2019 (COVID-19) in patients with severe mental illness (SMI) admitted to a specialist psychiatric hospital in South Africa between 01 April 2020 and 30 September 2021.Setting: The study was executed at the Vàlkenberg Hospital (VBH), which is a government-funded, specialised psychiatric hospital. The hospital comprises 370 beds made up of 145 forensic service beds and 225 acute service beds. It provides in-patient and out-patient services.Methods: Demographic and clinical information were collected for all VBH in-patients who tested positive for SARS-COV-2 from 01 April 2020 to 30 September 2021.Results: A total of 254 participants tested positive for SARS-COV-2. The sample comprised 75% (n = 191) males with a mean age of 35.7 years. Most patients were diagnosed with schizophrenia (37%, n = 94), bipolar disorder (21%, n = 54) and schizoaffective disorder (19%, n = 49). Reported comorbidities included nicotine use (71%, n = 181), hypertension (11%, n = 28) and human immunodeficiency virus (7%, n = 18). Most patients (62%, n = 156) were symptomatic for COVID-19. Seven per cent (n = 17) required transfer to a medical ward. Almost all patients (99%, n = 252) recovered and 1% (n = 2) died.Conclusion: Contrary to early fears of high mortality among institutionalised SMI patients, most experienced mild COVID-19 illness and recovered.Contribution: This descriptive study provided information on in-patients with COVID-19 disease at a specialised psychiatric hospital during the pandemic.
Autostable-II stent versus bicanalicular silicon intubation for management of lacrimal canalicular obstruction
Authors: Khalil Zamzam M.A. , Abdallah Raafat M.A. , Elshafei Ahmed M.K. , Abdelrahman Amr A.M. 
Published: January 2025

Purpose
To compare the anatomical and functional results of the use of Autostable-II self-retaining stent (A-II SRS) and bicanalicular silicone tube (BST) in the treatment of epiphora due to distal or common canalicular obstruction.

Setting and design
This prospective, comparative, interventional study was conducted at El Minia University, Faculty of Medicine, Department of Ophthalmology.

Patients and methods
This study included 80 eyes of 65 patients and was performed from March 2020 to June 2021 in Minia University Hospital. Detailed history taking, anterior segment examination, lacrimal probing, and syringing were done. The patients were evaluated 1 day, 1 week, 1 month, and 3 months postoperatively when A-II SRS and BST were removed and 3 months after their removal.

Results
Eighty eyes of 56 patients with distal canalicular obstruction were evaluated in this study. Patients in group A were treated using A-II SRS (FCI), and patients in group B were treated by BST (EAGLE LABS). Results revealed a highly statistically significant difference between the two groups in epiphora grading 1 day postoperatively (P=0.013) and no significant difference between the two groups postoperatively at 1 week, 1 month, 3 months, and 6 months. Objective improvement indicated by fluorescein dye disappearance test by the end of the follow-up period revealed no significant difference between the two studied groups (P=0.39). Regarding tube position, in group A, two (5%) stents were extruded. In group B, only one (2.5%) was prolapsed and removed by the end of the first month.

Conclusion
The advantage of A-II SRS set over BST intubation surgery for lacrimal canalicular obstruction is easy placement without general anesthesia. However, extra costs are needed for A-II SRS, which is an important issue in areas with low economic income.
The temporal inverted internal limiting membrane flap technique versus multilayered inverted flap technique in patients with idiopathic macular hole
Authors: Elgouhary Sameh M. , Abd-elmoaty Safaa M. , Salama Ahmed A. 
Published: January 2025

Objectives
This study aimed to compare the temporal inverted internal limiting membrane (ILM) flap technique with the multilayered inverted ILM flap technique for treating idiopathic macular holes (IMHs) by assessing anatomical outcomes using optical coherence tomography (OCT) and functional outcomes through best corrected visual acuity (BCVA) and optical coherence tomography angiography (OCTA).

Background
ILM flaps act as a scaffold that promotes macular hole closure by facilitating cell proliferation and migration.

Patients and methods
Patients with IMHs were divided into two groups. Group A underwent the temporal inverted ILM flap technique, while group B received the multilayered inverted ILM flap technique. Preoperative assessment of BCVA, OCT and OCTA. Follow-up at 1, 3, and 6 months by OCT and assessment of BCVA, and OCTA at 3 months.

Results
The study included 20 eyes with IMH: group A (mean age 60.9±4.51 years) and group B (mean age 62.7±3.74 years). Postoperative OCT revealed no significant differences in closure patterns between the groups. Group A had 60% type U, 10% type V, and 20% type W closure patterns, with 10% of cases failing to close. Group B had 70% type U, 20% type V, and 10% type W closure patterns. BCVA improved from 0.06±0.02 to 0.24±0.14 in group A and from 0.05±0.02 to 0.30±0.11 in group B.

Conclusion
While no significant anatomical differences were observed between the two techniques, the multilayered inverted ILM flap technique demonstrated superior functional outcomes compared with the temporal flap technique.