bluuebunny/crossref_metadata_2025_split huggingface dataset:
انعكاس تغيرات سعر الصرف في المستوى العام للأسعار في ليبيا خلال الفترة (2010-2020)
Authors: صالح على عيسى , المانع أحمد 
Published: December 2024

تناولت هذه الدراسة اختبار نفاذية سعر الصرف إلى مؤشر أسعار المستهلك، كمقياس للمستوى العام للأسعار في ليبيا، وذلك باستخدام بيانات فصلية تغطي الفترة من الربع الأول لعام 2010 وحتى الربع الرابع لعام 2020، وقد تم تطبيق نموذج الانحدار الذاتي غير الخطي للفجوات الموزعة (NARDL) في عملية القياس والتقدير، حيث تم توظيف ثلاثة مؤشرات رئيسية لسعر الصرف وهي، سعر الصرف الاسمي الرسمي، سعر الصرف الاسمي الموازي، وسعر الصرف الحقيقي الموازي، إضافة لتضمين متغيرات نقدية ومالية أخرى وهي عرض النقود بالمفهوم الواسع ، وأسعار النفط العالمية. وقد خلصت الدراسة إلى وجود انتقال غير كامل ومرتفع لأثر التغيرات في سعر الصرف الحقيقي الموازي إلى مؤشر أسعار المستهلك في المدى الطويل. كما أظهرت النتائج الاستجابة غير المتماثلة لمؤشر أسعار المستهلك للصدمات الإيجابية والسلبية لسعر الصرف. بالإضافة إلى ذلك، أظهرت النتائج انتقالًا غير كامل ومتواضع للتغيرات في سعر الصرف الاسمي الموازي إلى مؤشر أسعار المستهلك. ومن الواضح من النتائج أن نموذج سعر الصرف الحقيقي الموازي هو الأقرب في تفسير ظاهرة انعكاس التغيرات في سعر الصرف إلى المستوى العام للأسعار في الاقتصاد الليبي
Analisis Pelaksanaan Kegiatan Operasi Bantuan Logistik Di Wilayah Papua Barat
Authors: Adiguna Ilham , Syuroh Mat , Sandy Amiruddin 
Published: December 2024

Penelitian ini bertujuan untuk mengetahui Analisis Pelaksanaan Kegiatan Operasi Bantuan Logistik Di Wilayah Papua Barat. Metode penelitian yang digunakan adalah metode kualitatif dengan teknik analisis data pengumpulan data (data collection), kondensasi data (data condensation), penyajian data (data display), pengambilan kesimpulan (condusion drawing/verification). Objek penelitian ini adalah Pasukan Satgas Penerbad di Papua Barat yang berjumlah 7 orang informan yang dilakukan dengan wawancara. Identifikasi masalah dalam penelitian ini membahas mengenai alutsista yang digunakan dalam pelaksanaan bantuan logistik,faktor cuaca yang tidak menentu, dan medan operasi yang dilalui. Dari hasil penelitian yang dilakukan menerangkan bahwa pelaksanaan kegiatan bantuan logistik di Papua Barat menunjukkan hasil yang baik, berjalan sesuai dengan prosedur yang ada, dan semua kegiatan logistik dalam pemenuhan kebutuhan sudah cukup berjalan dengan baik dan didukung dari Mabes TNI. Mabes TNI akan mendukung kebutuhan barang dan jasa untuk pasukan selama tugas operasi.
Foliar Application of Iron Fortified Bacterio-siderophore And Rhizobium Seed Inoculation Promote Growth and Grain Fe Contents in Soybean and Chickpea
Authors: Ehsan Shabana , Waheed Swebba , Sarwar Aleem , Chaudhary Neelam , Ashraf Waqas , Affan Quais , Anwar Faraz , Zafar Hafsa , Saqib Amar Iqbal 
Published: December 2024

Iron (Fe)is one of the principle micronutrients critical for plant development and grain quality. Chickpea (Cicer aeritum) and soybean (Glycine max) are vital leguminous crops known for high protein contents in grain. But quality of grain is affected due to low level of available Fe content. Application of Fe-enriched bacteriosiderophore through foliar spray might increase Fe content in grain and improve its quality. Therefore, present study was conducted to explore the interactive effect of rhizobium application as seed inoculation and bacteriosiderophore as foliar spray on growth and yield parameters of legume crops. Rhizobium sp. from chickpea nodules was selected for seed inoculation and bacillus megaterium as foliar spray on the basis of amount of siderophore produced. Their synergestic effect was tested on field grown chickpea and soybean crops by applying bacteriosiderophore with or without inorganic Fe addition on foliage at flowering stage. Data regarding plant height, No. of nodules after a week of spray and pods per plant, grain yield, N, P uptake and grain Fe contents were recorded at time of harvest. The data of grain quality showed more improvement in iron contents in soybean (1.44 fold) and chickpea (4.07 fold) as compared to control (water) with synergistic effect of rhizobium and bacterio-siderophore. Maximum plant height, No. of nodules and pods were observed in combined application of bacteriosiderophore enriched with iron and rhizobium. Similarly, maximum chickpea grain yield of 2.16 and 1.6-fold in soybean produced where coinoculation of seed with rhizobium and foliar bacteriosiderophore was done. Thus, it was observed that foliar implantation of siderophore containing bacteria with added Fe could be an economical approach towards Fe fortification in leguminous crop plants grown on alkaline calcareous soil
The Intrinsic Flattening of Galaxy Disks
Authors: Favaro Jeremy , Courteau Stéphane , Comerón Sébastien , Stone Connor 
Published: December 2024

Abstract
Highly inclined (edge-on) disk galaxies offer the unique perspective to constrain their intrinsic flattening, c/a, where c and a are, respectively, the vertical and long radial axes of the disk measured at suitable stellar densities. The ratio c/a is a necessary quantity in the assessment of galaxy inclinations, three-dimensional structural reconstructions, and total masses, as well as a constraint to galaxy formation models. The 3.6 μm maps of 133 edge-on spiral galaxies from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and its early-type galaxy extension are used to revisit the assessment of c/a free from dust extinction and away from the influence of a stellar bulge. We present a simple definition of c/a and explore trends with other galactic physical parameters: total stellar mass, concentration index, total H i mass, mass of the central mass concentration, circular velocity, model-dependent scales, and Hubble type. Other than a dependence on early/late Hubble types and a related trend with light concentration, no other parameters were found to correlate with the intrinsic flattening of spiral galaxies. The latter is mostly constant with 〈c/a〉 = 0.124 ± 0.001 (stat) ± 0.033 (intrinsic/systematic) and greater for earlier types.
The Rotation Properties of δ Sct and γ Dor Stars
Authors: Wang Jiyu , Chen Xiaodian , Deng Licai , Zhang Jianxing , Sun Weijia 
Published: December 2024

Abstract
Based on the LAMOST spectroscopy and TESS time-series photometry, we have obtained a main-sequence star sample of δ Scuti and γ Doradus stars. The sample includes 1534 δ Sct stars, 367 γ Dor stars, 1703 δ Sct ∣γ Dor stars, 270 γ Dor ∣δ Sct stars, along with 105 “dsct candidates” and 32 “gdor candidates”. After correcting for projection effects, we derived the equatorial rotational velocity distribution for δ Sct and γ Dor stars and compared it with that of normal stars. The rotational velocity distributions of δ Sct and γ Dor stars are extremely similar, with the only difference potentially due to the rotational variable stars that have not been completely removed. In contrast, the rotational velocity distribution of normal stars is more dispersed compared to pulsating stars. Additionally, the peak rotational velocity of the pulsating stars is about 10 km s−1 higher than that of normal stars. Unlike the normal stars, which show a monotonic increase in peak velocity with mass between 1.8 and 2.5 M
⊙, the rotational velocity distribution of δ Sct stars does not exhibit a strong mass dependence. We also found that normal stars accelerate during the late main-sequence evolutionary phase, while δ Sct stars decelerate. Furthermore, there may still be unclassified stars with diverse rotational properties in the normal star sample compared to the δ Sct stars, which is likely to be an important contributor to the broader dispersion observed in its rotational velocity distribution. The photometric amplitude in δ Sct stars is modulated with rotational velocity, with high-amplitude stars typically rotating slowly and low-amplitude stars showing a broad distribution of rotational velocities.
Engine-fed Kilonovae (Mergernovae). II. Radiation
Authors: Ai Shunke , Gao He , Zhang Bing 
Published: December 2024

Abstract
The radioactive power generated by materials within the ejecta of a binary-neutron-star (BNS) merger powers an optical transient known as a kilonova. When the central remnant of a BNS merger is a long-lived magnetar, it continuously produces a highly magnetized wind, altering both the dynamics and temperature of the ejecta, leading to the expected emergence of an engine-fed kilonova. In the first paper of this series, we conducted a detailed study of the dynamics of wind-ejecta interaction and the efficiency of energy injection through shocks. In this work, we combine this dynamical evolution with both shock-heating and additional X-ray irradiation to model photon diffusion within a constant-opacity ejecta. By calculating the radiation, we obtain the light curve and spectral energy distribution (SED). Our findings reveal that, with energy injection, a blue bump typically appears in the early stages (≲1 day). Furthermore, if the magnetar has not spun down by that time, a brightening in the later stages occurs. Despite this, in a large parameter space, the expected luminosity of the engine-fed kilonova is not significantly higher than the typical r-process kilonova due to limited heating efficiency. The SED of engine-fed kilonovae peaks in the relatively blue band in the early stages and evolves toward the red, but at a slower rate compared to the typical r-process kilonova.
Glitches and Glitching Clusters in Rotation-powered Pulsars
Authors: Zhu Pei-Xin , Zheng Xiao-Ping 
Published: December 2024

Abstract
The study of pulsar glitch phenomena serves as a valuable probe into the dynamic properties of matter under extreme high-density conditions, offering insights into the physics within neutron stars. Providing theoretical explanations for the diverse manifestations observed in different pulsars has proven to be a formidable challenge. By analyzing the distribution of glitch sizes and waiting times, along with the evolution of cumulative glitch sizes over time, we have uncovered a long-term clustering phenomenon for pulsar glitches. This perspective allows us to approach the distinct glitch representations in various pulsars from a unified standpoint, connecting the same periodicity of observational data to the randomness. Without relying on specific physical models, we utilized the coefficient of variation to numerically determine optimal clustering numbers and clustering periods for sample pulsars. Our analysis involving 27 pulsars has revealed a clear linear relationship between the glitch cluster period and characteristic age. Of interest, the cumulative distribution of functions of cluster sizes and interval times have the same patterns, which can be synchronously fitted by Gaussian processes. These results may indicate novel understandings of glitches and the resulting processes.
A Novel Approach to Understanding the Link between Supermassive Black Holes and Host Galaxies
Authors: Sasseville Gabriel , Hlavacek-Larrondo Julie , Berek Samantha C. , Eadie Gwendolyn M. , Rhea Carter Lee , Springford Aaron , Mezcua Mar , Haggard Daryl 
Published: December 2024

Abstract
The strongest and most universal scaling relation between a supermassive black hole (BH) and its host galaxy is known as the M
•–σ relation, where M
• is the mass of the central BH, and σ is the stellar velocity dispersion of the host galaxy. This relation has been studied for decades and is crucial for estimating BH masses of distant galaxies. However, recent studies suggest the potential absence of central BHs in some galaxies, and a significant portion of current data only provides upper limits for the mass. Here, we introduce a novel approach using a Bayesian hurdle model to analyze the M
•–σ relation across 244 galaxies. This model integrates upper mass limits and the likelihood of hosting a central BH, combining logistic regression for BH hosting probability with a linear regression of mass on σ. From the logistic regression, we find that galaxies with a velocity dispersion of 11, 34, and 126 km s−1 have a 50%, 90%, and 99% probability of hosting a central BH, respectively. Furthermore, from the linear regression portion of the model, we find that M
• ∝ σ
5.8, which is significantly steeper than the slope reported in earlier studies. Our model also predicts a population of undermassive BHs (M
• = 10–105
M
⊙) in galaxies with σ ≲ 127 km s−1 and overmassive BHs (M
• ≥ 1.8 × 107) above this threshold. This reveals an unexpected abundance of galaxies with intermediate-mass and ultramassive BHs, accessible to next-generation telescopes like the Extremely Large Telescope.
Decoding the Future of Exoplanets: Asteroseismic Confirmation of Subgiant and Red Giant Hosts
Authors: Lin Wen-Xu , Qian Sheng-Bang , Zhu Li-Ying , Liao Wen-Ping , Li Fu-Xing , Shi Xiang-Dong , Li Lin-Jia , Zhao Er-Gang 
Published: December 2024

Abstract
Asteroseismology has emerged as a powerful tool to unravel the intricate relationships between evolved stars and their planetary systems. In this study, we leverage this technique to investigate the evolutionary stages of five exoplanet host stars, each exhibiting solar-like oscillations. Building on our previous work that identified two host stars as red clump and red giant branch (RGB) stars, this study focuses on a new and broader sample. By precisely measuring asteroseismic parameters such as the period spacing of dipole gravity modes (ΔΠ1), we provide definitive confirmation of these stars’ evolutionary states as subgiants or RGB stars. These results are not only crucial for understanding the internal structures of evolved stars but also for predicting the eventual fate of their planetary companions, which may face engulfment as their host stars expand. This research highlights the profound role of asteroseismology in advancing our knowledge of planetary system evolution and opens new pathways for exploring how stellar evolution impacts planetary survival. Our findings set the stage for future studies on the dynamic fates of exoplanets, providing key insights into the intricate processes of stellar and planetary evolution.
Self-interacting Dark Matter, Core Collapse, and the Galaxy–Galaxy Strong-lensing Discrepancy
Authors: Dutra Isaque , Natarajan Priyamvada , Gilman Daniel 
Published: December 2024

Abstract
Gravitational lensing by galaxy clusters has emerged as a powerful tool to probe the standard cold dark matter (CDM) paradigm of structure formation in the Universe. Despite the remarkable explanatory power of CDM on large scales, tensions with observations on small scales have been reported. Recent studies find that the observational cross section for galaxy–galaxy strong lensing (GGSL) in clusters exceeds the CDM prediction by more than an order of magnitude and persists even after rigorous examination of various possible systematics. We investigate the impact of modifying the internal structure of cluster dark matter subhalos on GGSL and report that altering the inner density profile, given by r

γ
, to steeper slopes with γ > 2.5 can alleviate the GGSL discrepancy. This is steeper than slopes obtained with the inclusion of the contribution of baryons to the inner regions of these subhalos. Deviating from the γ ~ 1.0 cusps that CDM predicts, these steeper slopes could arise in models of self-interacting dark matter undergoing core collapse. Our results motivate additional study of subhalo core collapse in dense cluster environments.
Determination of the Abundance of Mercury from the Hg ii Line at 5677.10 Å in Late B-type Stars. XII. HD 7374 (87 Psc)
Authors: Monier Richard 
Published: December 2024

Abstract
The weak line of Hg ii located at 5677.10 Å is not detected in a coadded ELODIE spectrum of the HgMn star HD 7374 which may be explained by the decrease of the signal-to-noise ratio in the red part of the spectrum. The synthesis of various spectral intervals yields several new measurements of the abundances of helium, carbon, oxygen, magnesium, aluminum, silicon, titanium, chromium, manganese, iron, nickel, gallium and yttrium. Most of these new measurements agree well with previous measurements.
Taxons, classifications : de la théorie au cahier des charges
Authors: Deleporte Pierre 
Published: December 2024

La délimitation des taxons et la classification biologique consistent à rassembler conceptuellement des individus qui n’ont pas de cohérence matérielle entre eux. Les classes et les classifications sont des concepts humains, et non pas des entités matérielles « naturellement » cohérentes (et donc encore moins des « individus »). Cela ne veut pas dire qu’ils soient forcément dénués de sens ou inutiles. Mais on peut les concevoir de différentes manières, avec des significations différentes selon les contextes théoriques dans lesquels on les élabore et l’utilisation que l’on veut en faire. Une classification sensée repose nécessairement sur des bases théoriques. Une classification utile optimale doit répondre au cahier des charges correspondant à l’usage particulier que l’on veut en faire. La classification unique, « naturelle », évidente et d’usage universel est un mythe. Ses partisans se leurrent eux-mêmes sur ce qu’ils font, et ne peuvent progresser dans leurs débats avec d’autres systématiciens faute de bases logiques communes. « Tout n’est pas bon » en systématique, notamment parce que « n’importe quoi » ne peut pas être bon à tout faire.
Diagnosis and management of residual atrial septal defect after surgical failure: A case series
Authors: Sharma Satyavan , Shah Akash Bhupesh , Machigar Shankar Y. , Umbarkar Rajendra 
Published: December 2024

ABSTRACT
Residual defect after surgical closure of atrial septal defect is extremely uncommon. This communication reports four cases encountered in a tertiary care center during the last three decades. Clinical diagnosis was challenging, and the diverse presentations included acute ischemic stroke, cyanosis, and right ventricular volume overload. The morphology of the residual defects was complex, and multimodality imaging (transesophageal echocardiography, peripheral venous contrast studies, computed tomography, and balloon occlusion) enabled accurate recognition. Percutaneous device closure was feasible in one but required repeat surgery owing to unfavorable anatomy in the others. The communication focuses on difficulties in diagnosis and management.
Comparing the tissue Doppler-derived left ventricular myocardial performance index before and after recovery from respiratory distress in neonates: A prospective observational study
Authors: Panigrahi Nikita , Venkatesh Harohalli A. , Mishra Manas Ranjan , Pejaver Rajath , Nagesh Karthik N. 
Published: December 2024

ABSTRACT

Background and Objective:
Respiratory distress is the most common cause requiring neonatal intensive care unit admission. As respiratory and cardiac functions are closely interrelated, some cardiac dysfunction is expected in respiratory distress. The myocardial performance index (MPI) is an index to assess global myocardial function, easily measurable by bedside echocardiography and reliable. Here, we conducted this study to determine the change in cardiac function in neonates with respiratory distress before initiating respiratory support and after weaning from the support.

Methodology:
The study was carried out in 92 neonates with a gestational age of more than 32 weeks who required invasive or noninvasive respiratory support. The tissue Doppler left ventricular MPI (LV MPI) was calculated before the initiation of respiratory support and after weaning from respiratory support. The data were analyzed using a paired t-test and a Wilcoxon signed-rank test.

Results:
This study comprised 92 neonates with a median (interquartile range) LV MPI value of 0.56 (0.10) before initiation of respiratory support and 0.47 (0.04) after weaning from respiratory support with P < 0.001. The isovolumetric contraction time, isovolumetric relaxation time, and ejection time increased after weaning from respiratory support (all P < 0.0001). The severity of respiratory distress determined by invasive mode of ventilation and longer duration of respiratory support caused higher initial LV MPI before initiation of respiratory support compared with recovery and P < 0.001, suggesting subclinical ventricular dysfunction with respiratory distress in neonates.

Conclusion:
LV MPI was higher in neonates with respiratory distress and normalized after weaning from respiratory support, which indicates that neonates requiring respiratory support may have subclinical ventricular dysfunction and should be followed up carefully.
Prevalence of immunological aberrations and 22q11.2 deletion in children with conotruncal anomalies: A cross-sectional study
Authors: Das Souvik , Baranwal Arun Kumar , Rawat Amit , Nair Ashwini , Naganur Sanjeev Hanumantacharya , Kaur Anupriya , Mishra Anand Kumar , Jindal Ankur , Kaur Anit 
Published: December 2024

ABSTRACT

Introduction:
22q11.2 deletion is associated with conotruncal anomalies and immunological aberrations. Given the common embryonic origin of conotruncus and thymus, conotruncal anomalies may be associated with immunological aberrations irrespective of 22q11.2 deletion. We planned to study the prevalence of immunological aberrations and 22q11.2 deletion among patients with conotruncal anomaly to understand the impact of their interplay.

Patients and Methods:
Preoperative children (age <12 years) with conotruncal anomalies were evaluated for clinical dysmorphism, lymphocyte subsets by flowcytometry, immunoglobulin levels by nephelometry, and 22q11.2 deletion by multiplex ligand-dependent probe amplification (January 2021–June 2022). Patients with asplenia and polysplenia were excluded from immunological studies.

Results:
Major cardiac defects ([n = 101], [median age, 32 days]) included dextro-transposition of great arteries (d-TGA) - 41.6%, tetralogy of Fallot - 37.6%, double outlet right ventricle (DORV) - 13.9%, and truncus arteriosus - 4.9%. Four patients had polysplenia with situs inversus, while 17 had clinical dysmorphism. Flow cytometry (n = 82) revealed low absolute counts of lymphocytes (33%), T-cells (51.2%), CD4+ cells (50%), and CD8+ cells (51.2%), while only 14.1% had low IgG levels. Eight patients (8/95, 8.4%) had 22q11.2 deletion, with universal deletion of TBX1-2 and TBX1-7 genes; the other 19 genes were deleted in various combinations. Two patients with 22q11.2 deletion had normal T-cell subsets, while none had a complete absence of T-cells.

Conclusion:
Immunological aberrations, especially T-cell abnormalities, were present in almost half of the patients, irrespective of 22q11.2 deletion. Only 8.4% of patients had 22q11.2 deletion. The high incidence of d-TGA among 22q11.2 deletion patients needs further exploration.