bluuebunny/crossref_metadata_2025_split huggingface dataset:
UOCS. XIII. Study of the Far-ultraviolet Bright Stars in the Open Cluster NGC 2420 Using AstroSat
Authors: Yadav R. K. S. , Dattatrey Arvind K. , Rangwal Geeta , Subramaniam Annapurni , Bisht D. , Sagar Ram 
Published: January 2024

Abstract
We present the study of four far-ultraviolet (FUV) bright stars in the field of the open cluster NGC 2420 using the Ultra Violet Imaging Telescope mounted on AstroSat. The three stars 525, 527, and 560 are members, while star 646 is a nonmember of the cluster. To characterize and determine the parameters of these stars, multiwavelength spectral energy distributions (SEDs) are analyzed using UV, optical, and IR data sets. For all four FUV bright stars, a two-component SED model fits well. Our findings indicate that two stars, 525 and 560, are binary blue straggler star (BSS) systems. These BSS systems may have formed in a tertiary system due to mass transfer from an evolved outer tertiary companion. Star 527 is a binary system of a BSS and an extremely low-mass (ELM) white dwarf, while star 646 is a binary system of a horizontal branch star and an ELM white dwarf. The effective temperatures, radii, luminosities, and masses of the two ELMs are (10250, 11500) K (0.42, 0.12) R
⊙, (1.61, 0.23) L
⊙, and (0.186, 0.170) M
⊙, respectively. The star 527 could be a post-mass-transfer system and may have originated through the Case A/B mass-transfer process in a low-density environment. The cooling age of the ELMs is < 1 Myr, indicating that they have only recently formed.
Sub-GeV Gamma Rays from Nearby Seyfert Galaxies and Implications for Coronal Neutrino Emission
Authors: Murase Kohta , Karwin Christopher M. , Kimura Shigeo S. , Ajello Marco , Buson Sara 
Published: January 2024

Abstract
Recent observations of high-energy neutrinos by IceCube and gamma rays by the Fermi Large Area Telescope (LAT) and the MAGIC telescope have suggested that neutrinos are produced in gamma-ray opaque environments in the vicinity of supermassive black holes. In this work, we present 20 MeV–1 TeV spectra of three Seyfert galaxies whose nuclei are predicted to be active in neutrinos, NGC 4151, NGC 4945, and the Circinus galaxy, using 14.4 yr of Fermi LAT data. In particular, we find evidence of sub-GeV excess emission that can be attributed to gamma rays from NGC 4945, as was also seen in NGC 1068. These spectral features are consistent with predictions of the magnetically powered corona model, and we argue that NGC 4945 is among the brightest neutrino active galaxies detectable for KM3Net and Baikal-GVD. On the other hand, in contrast to other reported results, we do not detect gamma rays from NGC 4151, which constrains neutrino emission from the accretion shock model. Future neutrino detectors such as IceCube-Gen2 and MeV gamma-ray telescopes such as AMEGO-X will be crucial for discriminating among the theoretical models.
GJ 367b Is a Dark, Hot, Airless Sub-Earth
Authors: Zhang Michael , Hu Renyu , Inglis Julie , Dai Fei , Bean Jacob L. , Knutson Heather A. , Lam Kristine , Goffo Elisa , Gandolfi Davide 
Published: January 2024

Abstract
We present the mid-infrared (5–12 μm) phase curve of GJ 367b observed by the Mid-Infrared Instrument on the James Webb Space Telescope (JWST). GJ 367b is a hot (T
eq = 1370 K), extremely dense (10.2 ± 1.3 g cm−3) sub-Earth orbiting an M dwarf on a 0.32 day orbit. We measure an eclipse depth of 79 ± 4 ppm, a nightside planet-to-star flux ratio of 4 ± 8 ppm, and a relative phase amplitude of 0.97 ± 0.10, all fully consistent with a zero-albedo planet with no heat recirculation. Such a scenario is also consistent with the phase offset of 11°E ± 5° to within 2.2σ. The emission spectrum is likewise consistent with a blackbody with no heat redistribution and a low albedo of A

B
≈ 0.1, with the exception of one anomalous wavelength bin that we attribute to unexplained systematics. The emission spectrum puts few constraints on the surface composition but rules out a CO2 atmosphere ≳1 bar, an outgassed atmosphere ≳10 mbar (under heavily reducing conditions), or an outgassed atmosphere ≳0.01 mbar (under heavily oxidizing conditions). The lack of day–night heat recirculation implies that 1 bar atmospheres are ruled out for a wide range of compositions, while 0.1 bar atmospheres are consistent with the data. Taken together with the fact that most of the dayside should be molten, our JWST observations suggest that the planet must have lost the vast majority of its initial inventory of volatiles.
Which Came First: Supermassive Black Holes or Galaxies? Insights from JWST
Authors: Silk Joseph , Begelman Mitchell C. , Norman Colin , Nusser Adi , Wyse Rosemary F. G. 
Published: January 2024

Abstract
Insights from JWST observations suggest that active galactic nuclei feedback evolved from a short-lived, high-redshift phase in which radiatively cooled turbulence and/or momentum-conserving outflows stimulated vigorous early star formation (“positive” feedback), to late, energy-conserving outflows that depleted halo gas reservoirs and quenched star formation. The transition between these two regimes occurred at z ∼ 6, independently of galaxy mass, for simple assumptions about the outflows and star formation process. Observational predictions provide circumstantial evidence for the prevalence of massive black holes at the highest redshifts hitherto observed, and we discuss their origins.
The Hidden Companion in J1527: A 0.69 Solar-mass White Dwarf?
Authors: Zhang Zhi-Xiang , Liu Hao-Bin , Yi Tuan , Sun Mouyuan , Gu Wei-Min 
Published: January 2024

Abstract
Finding nearby neutron stars can probe the supernova and metal-enrichment histories near our solar system. Recently, Lin et al. reported an exciting neutron star candidate, Two Micron All Sky Survey J15274848+3536572 (hereafter J1527), with a small Gaia distance of 118 pc. They claim that J1527 harbors an unseen neutron star candidate with an unusually low mass of 0.98 ± 0.03 M
⊙. In this work, we use the Canada–France–Hawaii Telescope high-resolution spectrum to measure J1527's orbital inclination independently. Our spectral fitting suggests an orbital inclination of 63° ± 2°. Instead, by fitting a complex hybrid variability model consisting of the ellipsoidal-variation component and the starspot modulation to the observed light curve, Lin et al. obtain an orbital inclination of

45.2

−
0.20

+
0.13

degrees. We speculate that the orbital inclination obtained by the light-curve fitting is underestimated since J1527's light curves are obviously not pure ellipsoidal variations. According to our new inclination (i ∼ 63°), the mass of the unseen compact object is reduced to 0.69 ± 0.02 M
⊙, which is as massive as a typical white dwarf.
Thirty Bright High Velocity B, A, and F Stars that may have Late-type Companions
Authors: Parthasarathy Mudumba 
Published: January 2024

Abstract
I found thirty high velocity stars that have large V − K values compared to standard stars of similar spectral types indicating the possible presence of late-type companion stars. All these thirty stars are relatively bright nearby stars with accurate Gaia DR3 parallaxes and radial velocities. There is hardly any relevant literature on these stars. There are 18 high galactic latitude stars in this sample. In order to further understand their chemical composition, evolutionary status, binary companions and how these stars acquired high radial velocities high resolution spectroscopy, radial velocity and photometric monitoring studies are very much needed.
Role of tissue inhibitor of matrix metalloproteinase-1 in Iraqi patients with acute myeloid leukemia
Authors: AlHashemi Hassnien Samir , Shabeeb Zeyad Ahmed 
Published: January 2024

Abstract:

BACKGROUND:
Leukemia is characterized by an uncontrolled expansion or proliferation of hematopoietic cells that are unable to develop appropriately into mature blood cells. Tissue inhibitor of metalloproteinases (TIMP) is glycoprotein with 28 Da Molecular weight. It has proteolytic and proliferative activity show pleiotropic effects in the bone marrow regulates cell responsible for survival and growth also healthy hematopoietic progenitor cells and involve in cancer progression.

OBJECTIVES:
The aim of this study was to measure TIMP in Iraqi acute myeloid leukemia patients as well as the correlation between tissue inhibitor of matrix metalloproteinase-1 and blast cells.

PATIENTS MATERIALS AND METHODS:
The study involved 50 patients from Iraqi National Hematology Center/Al-Mustansiriyah University and Baghdad Teaching Hospital with acute myeloid leukemia and 50 control participants who were physically similar. The patients’ ages ranged from 20 to 70 years. Tissue inhibitor of matrix metalloproteinase concentration in plasma was measured using a sandwich enzyme immunoassay approach that is quantitative.

RESULTS:
The present study demonstrates a statistically significant increase in the level of tissue inhibitor of matrix metalloproteinase-1 patients with acute myeloid leukemia. The level of TIMP-1 in serum AML patients was 443.7 ± 0.3 pg/mL while in healthy control serum was 149.5 ± 0.088 pg/mL. The current result showed a positive significant correlation between TIMP-1 level and blast Cells percentage (r = 0.495; P = 0.031), while the correlation between leukocytes number and platelets number was insignificant (r = 0.388; P = 0.078, r = −0.444; P = 0.155).

CONCLUSION:
TIMP-1 levels increased in the CML patient compared with healthy control also there was a significant correlation between TIMP-1 and Blast cell level while no correlation between level of TIMP-1 and number of leukocytes and platelets. The level of TIMP in patients untreated and undergoing chemotherapy does not change.
AI‐based language tutoring systems with end‐to‐end automatic speech recognition and proficiency evaluation
Authors: Kang Byung Ok , Jeon Hyung‐Bae , Lee Yun Kyung 
Published: January 2024

AbstractThis paper presents the development of language tutoring systems for non‐native speakers by leveraging advanced end‐to‐end automatic speech recognition (ASR) and proficiency evaluation. Given the frequent errors in non‐native speech, high‐performance spontaneous speech recognition must be applied. Our systems accurately evaluate pronunciation and speaking fluency and provide feedback on errors by relying on precise transcriptions. End‐to‐end ASR is implemented and enhanced by using diverse non‐native speaker speech data for model training. For performance enhancement, we combine semisupervised and transfer learning techniques using labeled and unlabeled speech data. Automatic proficiency evaluation is performed by a model trained to maximize the statistical correlation between the fluency score manually determined by a human expert and a calculated fluency score. We developed an English tutoring system for Korean elementary students called EBS AI PengTalk and a Korean tutoring system for foreigners called KSI Korean AI Tutor. Both systems were deployed by South Korean government agencies.
Case Report: Pericardial Actinomycosis in a 79-Year-Old Man with Poor Dental Hygiene
Authors: Liao Chun-Hsun , Wu Tzong-Yow , Lin Yen-Liang , Liu Wang-Da , Wang Jann-Tay , Chen Jin-Shing , Ho Yi-Lwun 
Published: January 2024

ABSTRACT.
Actinomycosis is an uncommon infection caused by Actinomyces species, and the diagnosis is often challenging owing to low prevalence and diverse clinical manifestations. Pericardial involvement of actinomycosis is particularly rare. Here, we present a case of a 79-year-old man who initially complained of exertional dyspnea, orthopnea, and decreased urine amount. There was no fever, chest pain, or productive cough. Physical examination was remarkable for decreased breath sounds at the left lower lung field. Poor dental hygiene and a firm, well-defined mass without discharge over the hard palate were noted. Echocardiography revealed reduced ejection fraction of the left ventricle, global hypokinesia, and thickened pericardium (> 5 mm) with a small amount of pericardial effusion. On admission, the patient underwent diagnostic thoracentesis, and the results suggested an exudate. However, bacterial and fungal cultures were all negative. There was no malignant cell by cytology. Computed tomography revealed contrast-enhanced pericardial nodular masses. Video-assisted thoracoscopic pericardial biopsy was performed. Histopathology confirmed actinomycosis with chronic abscess formation, and a tissue culture yielded Aggregatibacter actinomycetemcomitans. The symptoms resolved with administration of clindamycin for 6 months. This case highlights the challenge in the diagnosis of cardiac actinomycosis, the potential role of concomitant microorganisms as diagnostic clues, and the favorable clinical response achieved with appropriate antibiotic treatment.
Kronik Hastalığı Olan ve Olmayan Bireylerde Akılcı İlaç Kullanımı, Sağlık Anksiyetesi ve Siberkondri
Authors: KALMAZ Ahmet , TEMEL Münire 
Published: January 2024

Amaç: Bu araştırma ile kronik hastalığı olan ve olmayan bireylerde akılcı ilaç kullanımı, sağlık anksiyetesi ve siberkondriyi değerlendirmek amaçlandı.
Yöntem: Bu araştırma kesitsel, tanımlayıcı ve ilişki arayıcı özellikteydi. Araştırma, Kasım 2020-Nisan 2021 tarihleri arasında 100 kronik hastalığı olan birey ve 105 kronik hastalığı olmayan birey ile yürütüldü. Veriler Hasta Bilgi Formu, Akılcı İlaç Kullanımı Ölçeği, Sağlık Anksiyetesi Ölçeği ve Siberkondri Ciddiyet Ölçeği kullanılarak yüz yüze görüşme ile toplandı.
Bulgular: Kronik hastalığı olan ve olmayan bireylerin akılcı ilaç kullanım tutumları iyi düzeydeydi. Ancak orta düzeyde siberkondri gösterdikleri görüldü. Kronik hastalığı olanların sağlık anksiyetesi düzeyi daha yüksekti (p
Examination of the Use of Traditional, Complementary and Alternative Treatment Methods for Covid-19 by Pregnant Women
Authors: HACIVELİOĞLU Dilek , GÜNGÖR TAVŞANLI Nurgül , KOSOVA Funda 
Published: January 2024

Objective: Women who want to have a natural and safe pregnancy and birth choose traditional, complementary and alternative treatment methods. Also, during the Covid-19 pandemic, complementary and alternative treatments were recommended and used in many countries for protection against the virus. In this study, an examination was made of the use of traditional, complementary and alternative treatment methods (CAM) in the Covid-19 pandemic by pregnant women coming to a family health center for checkup (monitoring).
Method: The study is descriptive type. A total of 162 pregnant women who came to the family health center for control were included in the study. A questionnaire form consisting of 43 questions in three sections was used in the research. Questionnaire forms were filled through face-to-face interviews.
Results: It was found that the most used complementary and alternative treatment methods were prayer, massage, herbal treatment and vitamin supplements. Also, other behaviors conducted with the aim of protection were not going out of the house, drinking or gargling water with vinegar, and cleaning with chlorine bleach.
Conclusion: The women stated that the CAM methods which they used the most were herbal remedies, vitamin supplements, hydrotherapy, acupuncture, cupping, massage, phlebotomy, the use of leeches, hypnosis, meditation and music therapy. It was seen that the pregnant women mostly used prayer, massage, vitamin supplements and herbal remedies during the time of Covid-19.
Quella cotale presenza della sua umanità passionata: Immagini e affetti nello Specchio di croce di Domenico Cavalca
Authors: Troiano Alfredo 
Published: January 2024

Riprendendo la spiritualità monastica medievale, insieme con la tradizione patristica, Domenico Cavalca (anni Ottanta del Duecento-1341), dell’Ordine dei Predicatori di Pisa, si fa catalizzatore in positivo di immagini dal forte impatto visivo e affettivo, promuovendo per un pubblico di laici devoti un graduale percorso di educazione all’affettività. Formatosi particolarmente alla scuola di s. Bernardo di Clairvaux, Cavalca promuove il Cristianesimo non già come una “religione del Libro”, ma come religione della Parola, di un Verbo Incarnato e vivo, unico e personale. Il Deus-homo crucifixus è il Libro scritto nella Parola incarnata, e chiede al meditante di contemplare, come ‘vedere’ e ‘sentire’ insieme, questo passaggio.
L’adorazione della croce diviene allora il modello di una meditazione affettiva che suscita immagini capaci di trasporre nello spirito come nel corpo la testimonianza di Paolo ai Galati, Christo confixus sum cruci. Sfruttando una chiave psicologica comune ai predicatori (l’uomo composto di cogitatus, affectus e memoria), il Nostro ripropone ciò che era il positivo (o l’impulso) della spiritualità monastica, il ritorno cioè a Dio attraverso l’Uomo del Figlio, e così recuperare quell’immagine impressa nella creatura prima del peccato.
English Mini-Workshops
Authors: Walker Daniel 
Published: January 2024

It is repeated over and over again that German universities are becoming, or must become, more international. We are starting to find more and more exciting partnerships within and outside of Europe for carrying out interesting projects, and we are offering more and more degree programmes in English so that foreign students have the opportunity to study with us in Germany. But in order to do this, we have to deal with the "consequences". What if a student has a question for the examination office but can’t ask it in German? Or what if a teacher has to teach their lecture in English because this is now required, even though they have only ever taught in German? It is often assumed that everyone can speak English – but that is not necessarily the case. If our students become more "English", then so must we. And that's not a given. We have to provide the platform for it. Daniel Walker has been working as an English consultant for staff members and lecturers at Frankfurt University of Applied Sciences since November 2020. His job is to design an English programme that it is useful and relevant for everyone – be it a professor or a secretary. In this article, Daniel writes about his most popular offer to date, which won the "Gute Sprachlehre an Hochschulen” teaching award in the category "Förderung von Handlungsorientierung und Praxisbezug": The English mini-workshops for university staff.
Pengembangan Skala Orientasi Masa Depan Pendidikan pada Remaja Indonesia
Authors: Winurini Sulis 
Published: January 2024

This study aimed to develop an instrument for education future orientation among adolescents in Indonesia, namely by confirming the future orientation model of Seginer, Nurmi, and Poole. The approach used is quantitative because statistical tests are needed to meet the psychometric requirements of an instrument. The researcher used Confirmatory Factor Analysis (CFA) with Lisrel program to test construct validity and single trial method with Cronbach Alpha technique with SPSS program to test reliability. Data collection was conducted online at the end of August 2021 for 3,238 adolescents in class XII of Public High School with a convenient sampling technique. Through CFA, it was confirmed that a unidimensional model was acceptable (RMSEA = 0.048, < 0.05), meaning that all items truly measure the education future orientation. In addition, it was also confirmed that the education future orientation consists of motivational, cognitive, and behavioral components according to the theoretical model of future orientation built by Seginer, Nurmi, and Poole. Meanwhile, based on the results of the reliability test, this instrument has high reliability, with a reliability coefficient of 0.905. Henceforth, this instrument can be used for educational research purposes on adolescents.AbstrakPenelitian ini bertujuan untuk mengembangkan instrumen orientasi masa depan pendidikan remaja, yaitu dengan mengonfirmasi model orientasi masa depan Seginer, Nurmi, dan Poole. Pendekatan yang digunakan adalah pendekatan kuantitatif karena uji statistika diperlukan untuk memenuhi persyaratan psikometrik dari sebuah instrumen. Peneliti menggunakan Confirmatory Factor Analysis (CFA) dengan program Lisrel untuk menguji validitas konstruk dan metode single trial dengan teknik Cronbach- Alpha dengan program SPSS untuk menguji reliabilitas. Pengumpulan data dilakukan secara daring pada akhir Agustus 2021 terhadap 3.238 remaja kelas XII SMA Negeri dengan teknik convenient sampling. Melalui CFA, terkonfirmasi bahwa model satu faktor dapat diterima (RMSEA = 0,049 (RMSEA < 0,05); GFI = 0,97 (GFI > 0,90); CFI = 0,99 (CFI > 0,90); NFI = 0,99 (NFI > 0,90)), artinya seluruh butir benar-benar mengukur orientasi masa depan pendidikan. Selain itu, terkonfirmasi juga bahwa orientasi masa depan pendidikan terdiri dari komponen motivasi, kognitif, dan perilaku sesuai model teoritikal orientasi masa depan yang dibangun Seginer, Nurmi, dan Poole. Sementara berdasarkan hasil uji reliabilitas, instrumen ini memiliki reliabilitas tinggi, dengan koefisien reliabilitas sebesar 0,905. Untuk selanjutnya, instrumen ini bisa digunakan untuk tujuan riset pendidikan terhadap remaja.
Rumah Sebagai Arena Pendidikan: Adaptasi dan Strategi Orangtua di Perkotaan Mendidik Anak di Masa Pandemi
Authors: Afriansyah Anggi 
Published: January 2024

The situation at the beginning of the pandemic changed various patterns of education in schools that had been considered normal and moved to homes. During the beginning of the pandemic, when schools were closed, learning had to move home and parents had to provide extra assistance to accompany their children's education at home. This article explores the challenges, adaptations, and strategies of parents in urban areas in assisting children in learning at the beginning of the pandemic. Interviews were conducted with the parents of workers in urban areas to get an adequate perspective on changing education patterns during the pandemic. The results of this study increasingly show the important role of parents in the education process of their children during the pandemic. The ability of parents to face challenges during the pandemic, adapt, and strategy is highly dependent on the resources they have, ranging from academic qualifications, flexibility in working time, the ability to dialogue with children, and build communication with the school. Each parent's technical and substance abilities play a very important role in helping children through the educational process during the pandemic.Abstrak:Situasi awal pandemi mengubah berbagai pola pendidikan yang selama ini dianggap lazim, yaitu dilakukan di lingkungan persekolahan. Selama awal pandemi, sekolah-sekolah ditutup. Pembelajaran di sekolah berpindah ke rumah sehingga orangtua harus ekstra dalam mendampingi pendidikan anak-anak di rumah. Artikel ini mengetengahkan tantangan, adaptasi, dan strategi orangtua di wilayah perkotaan dalam mendampingi anak-anak belajar di awal pandemi. Wawancara dilakukan kepada orangtua pekerja di wilayah perkotaan untuk mendapatkan perspektif memadai mengenai perubahan pola pendidikan di masa pandemi. Hasil penelitian ini menunjukkan bahwa peran orangtua semakin penting dalam proses pendidikan anak- anak. Kemampuan orangtua menghadapi tantangan di masa pandemi, melakukan adaptasi, dan strategi sangat bergantung pada sumber daya yang dimiliki mulai dari kualifikasi akademik, fleksibilitas waktu kerja, kemampuan berdialog dengan anak, dan membangun komunikasi dengan pihak sekolah. Kemampuan teknikal dan substansi orangtua sangat berperan dalam membantu anak melalui proses pendidikan di masa pandemi. Komisi X DPR RI melalui fungsi pengawasan perlu memantau, mengawasi, dan memberi dukungan terhadap kebijakan pemerintah berkaitan dengan pendidikan serta memastikan tidak ada kebijakan pendidikan yang memarjinalkan anak-anak dengan kerentanan berlapis akibat pandemi Covid-19.