bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penggunaan Chatbot Mela terhadap Peningkatan Kemampuan Kosa Kata Bahasa Indonesia Anak di RA Darul Mu’minin
Authors: Qotrunnida Nabila , Supriatna Encep , Naufal Arzaqi Roby 
Published: August 2023

Tujuan dari penelitian ini adalah penggunaan chatbot mela untuk meningkatkan kosa kata bahasa Indonesia pada anak. Dalam chatbot mela anak belajar mengenai huruf dan kosa kata. Dalam artikel murhum ini peneliti menggunakan metode kuantitatif eksperimen dengan menggunakan desain pre-experimental design melalui pendekatan One Group Pretest-Post test Design. Pre experimental design. Teknik Analisa data statistik menggunakan uji Wilcoxon untuk mengetahui peningkatan bahasa pada anak sebelum dan sesudah diberikan treatmen. Observasi dilakukan di RA Darul Mu’minin Jakarta barat dengan 20 siswa kelas B. Hasil penelitian ini mendeskripsikan peningkatan kosa kata bahasa Indonesia pada siswa RA Darul Mu’minin dengan hasil analisis uji statistik wilcoxon dengan memperoleh nilai Z= -3,948 berdasarkan dengan negative rank. Pengujian pada penelitian ini merupakan pengujian satu pihak maka nilai Sig.p-value (2-tailed) 0,001 akan dibagi dua . Karena nilai Sig.p value (1-tailed) lebih kecil dari 0,05 maka artinya H0 ditolak dan H1 diterima. Jadi dapat disimpulkan bahwa kemampuan kosa kata bahasa Indonesia siswa RA Darul Mu’minin sesudah menggunakan media pembelajaran melalui chatbot mela meningkat dibandingkan sebelum menggunakan media pembelajaran melalui chatbot mela.
The Unusual M-dwarf Warm Jupiter TOI-1899 b: Refinement of Orbital and Planetary Parameters
Authors: Lin Andrea S. J. , Libby-Roberts Jessica E. , Alvarado-Montes Jaime A. , Cañas Caleb I. , Kanodia Shubham , Han Te , Hebb Leslie , Jensen Eric L. N. , Mahadevan Suvrath , Powers Luke C. , Swaby Tera N. , Wisniewski John , Beard Corey , Bender Chad F. , Blake Cullen H. , Cochran William D. , Diddams Scott A. , Frazier Robert C. , Fredrick Connor , Gully-Santiago Michael , Halverson Samuel , Logsdon Sarah E. , McElwain Michael W. , Morley Caroline , Ninan Joe P. , Rajagopal Jayadev , Ramsey Lawrence W. , Robertson Paul , Roy Arpita , Schwab Christian , Stefánsson Guðmundur , Stevens Daniel J. , Terrien Ryan C. , Wright Jason T. 
Published: August 2023

Abstract
TOI-1899 b is a rare exoplanet, a temperate warm Jupiter orbiting an M dwarf, first discovered by Cañas et al. (2020) from a TESS single-transit event. Using new radial velocities (RVs) from the precision RV spectrographs HPF and NEID, along with additional TESS photometry and ground-based transit follow-up, we are able to derive a much more precise orbital period of

P
=

29.090312

−
0.000035

+
0.000036

days, along with a radius of R

p
= 0.99 ± 0.03 R
J. We have also improved the constraints on planet mass, M

p
= 0.67 ± 0.04 M
J, and eccentricity, which is consistent with a circular orbit at 2σ (

e
=

0.044

−
0.027

+
0.029

). TOI-1899 b occupies a unique region of parameter space as the coolest known (T
eq ≈ 380 K) Jovian-sized transiting planet around an M dwarf; we show that it has great potential to provide clues regarding the formation and migration mechanisms of these rare gas giants through transmission spectroscopy with JWST, as well as studies of tidal evolution.
Hydrodynamic Atmospheric Escape in HD 189733 b: Signatures of Carbon and Hydrogen Measured with the Hubble Space Telescope
Authors: Dos Santos Leonardo A. , García Muñoz Antonio , Sing David K. , López-Morales Mercedes , Alam Munazza K. , Bourrier Vincent , Ehrenreich David , Henry Gregory W. , Lecavelier des Etangs Alain , Mikal-Evans Thomas , Nikolov Nikolay K. , Sanz-Forcada Jorge , Wakeford Hannah R. 
Published: August 2023

Abstract
One of the most well-studied exoplanets to date, HD 189733 b, stands out as an archetypal hot Jupiter with many observations and theoretical models aimed at characterizing its atmosphere, interior, host star, and environment. We report here on the results of an extensive campaign to observe atmospheric escape signatures in HD 189733 b using the Hubble Space Telescope and its unique ultraviolet capabilities. We have found a tentative, but repeatable in-transit absorption of singlyionized carbon (C ii, 5.2% ± 1.4%) in the epoch of June–July/2017, as well as a neutral hydrogen (H i) absorption consistent with previous observations. We model the hydrodynamic outflow of HD 189733 b using an isothermal Parker wind formulation to interpret the observations of escaping C and O nuclei at the altitudes probed by our observations. Our forward models indicate that the outflow of HD 189733 b is mostly neutral within an altitude of ∼2 R
p and singly ionized beyond that point. The measured in-transit absorption of C ii at 1335.7 Å is consistent with an escape rate of ∼1.1 × 1011 g s−1, assuming solar C abundance and an outflow temperature of 12,100 K. Although we find marginal neutral oxygen (O i) in-transit absorption, our models predict an in-transit depth that is only comparable to the size of measurement uncertainties. A comparison between the observed Lyα transit depths and hydrodynamics models suggests that the exosphere of this planet interacts with a stellar wind at least 1 order of magnitude stronger than solar.
Impact of Changing Stellar and Planetary Magnetic Fields on (Exo)planetary Environments and Atmospheric Mass Loss
Authors: Gupta Sakshi , Basak Arnab , Nandy Dibyendu 
Published: August 2023

Abstract
The magnetic activity of a star—which modulates the stellar wind outflow—shapes the immediate environments of orbiting (exo)planets and induces atmospheric loss, thereby impacting their habitability. We perform a detailed parameter space study using three-dimensional magnetohydrodynamic simulations to understand the effect of changing stellar wind magnetic field and planetary magnetic field strengths on planetary magnetospheric topology and atmospheric losses. It is observed that the relative strengths of stellar and planetary magnetic fields play a significant role in determining the steady-state magnetospheric configuration and atmospheric erosion. When the stellar field is strengthened or the planetary field is weakened, stellar magnetic field accumulation occurs at the dayside of the planet, forcing the magnetopause to shift closer to its surface. The magnetotail opens up, leading to the formation of Alfvén wings in the nightside wake region. We demonstrate how reconnection processes and wind conditions lead to the bifurcation of the magnetotail current sheet. With increasing stellar wind magnetic field strength, the dayside reconnection point approaches the planet, thereby enhancing mass loss. We establish an analytic equation relating the atmospheric mass-loss rates to stellar and planetary magnetic field strengths, which successfully explains the modeled behavior. Our results are relevant for understanding how the interplay of stellar and planetary magnetism influence (exo)planetary environments and their habitability in star–planet systems with differing relative magnetic field strengths or in a single star–planet system over the course of their evolution with age.
The Formation of Imines and Nitriles during VUV Photoirradiation of NH3:C2H
x
Ice Mixtures
Authors: Canta Alessandra , Öberg Karin I. , Rajappan Mahesh 
Published: August 2023

Abstract
Nitriles are key reactants in prebiotic synthesis networks of RNA bases and amino acids. The detection of CH3CN and other complex nitriles in planet-forming disks suggests that such molecules are regularly delivered to nascent planets, increasing the likelihood of origins of life outside of Earth. In this paper, we investigate the formation of CH3CN and the closely related imines from the vacuum ultraviolet irradiation of NH3:C2H6, NH3:C2H4, and NH3:C2H2 ice mixtures at 10–50 K. CH3CN is formed in a subset of these experiments, with the highest yield of ∼5% with respect to the initial NH3 abundance achieved at the lowest ice temperatures for the least saturated hydrocarbon ice mixture. We find that the imine CH3CH=NH serves as an intermediate for the production of CH3CN in all ices and its yield generally appears higher than that of CH3CN. If the investigated ice chemistry is an important formation pathway of nitriles, we should observe CH3CH=NH > CH3CN. The opposite is true toward the Galactic Center, while no published constraints on CH3CH=NH exist in disks. Such constraints are needed to distinguish between the formation pathway presented in this work and other possible gas and ice nitrile formation pathways in different astrophysical environments. In the meantime, we conclude that NH3:hydrocarbon ice photochemistry is an excellent candidate for efficient low-temperature interstellar imine production.
Characterizing CO Emitters in the SSA22-AzTEC26 Field
Authors: Huang Shuo , Umehata Hideki , Kawabe Ryohei , Kohno Kotaro , Lee Minju , Tamura Yoichi , Hatsukade Bunyo , Mawatari Ken 
Published: August 2023

Abstract
We report the physical characterization of four CO emitters detected near the bright submillimeter galaxy (SMG) SSA22-AzTEC26. We analyze the data from Atacama Large Millimeter/submillimeter Array band 3, 4, and 7 observations of the SSA22-AzTEC26 field. In addition to the targeted SMG, we detect four line emitters with signal-to-noise ratio >5.2 in the cube smoothed with a 300 km s−1 FWHM Gaussian filter. All four sources have NIR counterparts within 1″. We perform UV-to-FIR spectral energy distribution modeling to derive the photometric redshifts and physical properties. Based on the photometric redshifts, we reveal that two of them are CO(2–1) at redshifts of 1.113 and 1.146 and one is CO(3–2) at z = 2.124. The three sources are massive galaxies with a stellar mass ≳1010.5
M
⊙, but have different levels of star formation. Two lie within the scatter of the main sequence (MS) of star-forming galaxies at z ∼ 1–2, and the most massive galaxy lies significantly below the MS. However, all three sources have a gas fraction within the scatter of the MS scaling relation. This shows that a blind CO line search can detect massive galaxies with low specific star formation rates that still host large gas reservoirs and that it also complements targeted surveys, suggesting later gas acquisition and the need for other mechanisms in addition to gas consumption to suppress star formation.
Enhanced Hydrogen Escape on Mars during the 2018 Global Dust Storm: Impact of Horizontal Wind Field
Authors: Sun Mingyang , Gu Hao , Cui Jun , Wu Xiaoshu , Huang Xu , Ni Yangxin , Wu Zhaopeng , Li Lei 
Published: August 2023

Abstract
Mars has undergone a substantial water loss, transforming from the early warm and wet state to the current cold and arid state. Observations and modeling efforts suggest that hydrogen escape is a metric of water loss on Mars. As a consequence of the vertical transport of water vapor by deep convection, hydrogen escape is significantly enhanced during Martian global dust storms. Motivated by the established scenario that the horizontal wind field could substantially enhance thermal escape, here we evaluate, for the first time, how the escape of H and H2 on Mars during a typical global dust storm is modified by the enhanced horizontal wind field during the period. By combining kinetic model calculations and the Mars Climate Database outputs, we reach the conclusion that a nonnegligible enhancement of the H and H2 escape flux could be driven by horizontal winds near the exobase, reaching 15% for H and 60% for H2 at dawn near the equator during the dust storm. Although the enhancement of the global hydrogen escape rate by the horizontal wind is insignificant, it plays a crucial role in the redistribution of H and H2 escape flux. The results presented here make useful contributions to a thorough understanding of enhanced hydrogen escape during the global dust storms.
General-relativistic Radiation Transport Scheme in Gmunu. I. Implementation of Two-moment-based Multifrequency Radiative Transfer and Code Tests
Authors: Cheong 張 Patrick Chi-Kit 志杰 , Ng Harry Ho-Yin , Lam Alan Tsz-Lok , Li Tjonnie Guang Feng 
Published: August 2023

Abstract
We present the implementation of a two-moment-based general-relativistic multigroup radiation transport module in the General-relativistic multigrid numerical (Gmunu) code. On top of solving the general-relativistic magnetohydrodynamics and the Einstein equations with conformally flat approximations, the code solves the evolution equations of the zeroth- and first-order moments of the radiations in the Eulerian-frame. An analytic closure relation is used to obtain the higher order moments and close the system. The finite-volume discretization has been adopted for the radiation moments. The advection in spatial space and frequency-space are handled explicitly. In addition, the radiation–matter interaction terms, which are very stiff in the optically thick region, are solved implicitly. The implicit–explicit Runge–Kutta schemes are adopted for time integration. We test the implementation with a number of numerical benchmarks from frequency-integrated to frequency-dependent cases. Furthermore, we also illustrate the astrophysical applications in hot neutron star and core-collapse supernovae modelings, and compare with other neutrino transport codes.
A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey
Authors: Gordon Yjan A. , Rudnick Lawrence , Andernach Heinz , Morabito Leah K. , O’Dea Christopher P. , Achong Kaylan-Marie , Baum Stefi A. , Bayona-Figueroa Caryelis , Hooper Eric J. , Mingo Beatriz , Morris Melissa E. , Vantyghem Adrian N. 
Published: August 2023

Abstract
Active galactic nuclei (AGNs) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet. This multicomponent morphology unfortunately creates difficulties for source finders, leading to components that are (a) separate parts of a wider whole, and (b) offset from the multiwavelength cross identification of the host galaxy. In this work we define an algorithm, DRAGNhunter, for identifying double radio sources associated with AGNs (DRAGNs) from component catalog data in the first epoch Quick Look images of the high-resolution (≈3″ beam size) Very Large Array Sky Survey (VLASS). We use DRAGNhunter to construct a catalog of >17,000 DRAGNs in VLASS for which contamination from spurious sources is estimated at ≈11%. A “high-fidelity” sample consisting of 90% of our catalog is identified for which contamination is <3%. Host galaxies are found for ≈13,000 DRAGNs as well as for an additional 234,000 single-component radio sources. Using these data, we explore the properties of our DRAGNs, finding them to be typically consistent with Fanaroff–Riley class II sources and to allow us to report the discovery of 31 new giant radio galaxies identified using VLASS.
Evaluation of Automated Measurement of Macular Ischemic Changes in Retinal Vein Occlusion With Optical Coherence Tomography Angiography
Authors: Werner Jens U. , Dreyhaupt Jens , Enders Christian 
Published: August 2023

Objective:
The foveal avascular zone (FAZ) is altered in patients with retinal vein occlusion (RVO) and correlates inversely with visual acuity. Optical coherence tomography angiography (OCTA) is an imaging tool to visualize FAZ safely and easily. Automated measurements can facilitate interpretation of OCTA images. In this comparative cross-sectional study, we compare the results of manual measurement of the FAZ with automated measurement by built-in application (Metrix).

Methods:
The study included patients with RVO who underwent OCTA. Manual measurement was compared with automated evaluation by Metrix in 3 mm x 3 mm and 6 mm x 6 mm scan sizes and correlations of the circularity, circumference, and size of the FAZ were calculated.

Results:

Forty-seven eyes were included in the study. A reliable measurement result in both Metrix 3 mm x 3 mm and 6 mm x 6 mm was found in only 25 of 47 eyes. The mean FAZ in these eyes by manual measurement was 0.50 mm
2
compared with 0.20 mm
2
and 0.24 mm
2
, respectively, by automated measurement. A statistically significant inverse correlation was found in both the automated 3 mm x 3 mm and 6 mm x 6 mm measurements for FAZ circumference with FAZ circularity but not FAZ area.

Conclusion:
The two automated measurements showed no significant bias regarding the size of the FAZ, but the plausibility of the data should be checked on a case-by-case basis. The manual measurements were higher, indicating limited agreement of manual and automated measurements. The information on circularity can point to ischemic maculopathy early in the course of the disease.

[
Ophthalmic Surg Lasers Imaging Retina
2023;54:462–469.]
Comparative Utility of Biofeedback Parameters in Predicting Perceived Relaxation
Authors: Kapadia Vishwum S. , Thakore Yuan-Hua N. , Kapadia Samir 
Published: August 2023

Background:
Biofeedback is a mind-body technique where individuals track their biological functions to decrease stress.

Aims and Objectives:
There were two objectives in this study: (1) Understand the changes in biofeedback measurements, such as changes in respiration rate and skin temperature, during relaxation and (2) Correlate these changes to their perceived relaxation, which can help determine if certain biofeedback methods can quantify the extent of relaxation.

Materials and Methods:
Eleven volunteers of 55 ± 3 years were relaxed for 11 min in a controlled environment using a session from the “Calm” app. Four biofeedback parameters were measured during the relaxation period (skin temperature, heart rate, respiration rate, and skin resistance). Postrelaxation, subjects completed a questionnaire to report the changes in their perceived relaxation state. Average skin resistance significantly increased from 314.75 Ω to 393.33 Ω (P = 0.04, two-tailed paired t-test). The changes in all other parameters were statistically insignificant, with the average skin temperature increasing from 86.55°F to 88.04°F (P = 0.24), heart rate decreasing from 71.90 bpm to 71.36 bpm (P = 0.51), and respiration rate decreasing from 14.82 rpm to 14.72 rpm (P = 0.88). All participants reported some degree of relaxation. However, there was no significant correlation between the parameters and degree of subjective relaxation (P > 0.05, Pearson's test).

Conclusion:
Only skin resistance showed a statistically significant change over the relaxation period, coinciding generally with the volunteers' perception of increased relaxation.
Intimate Partner Violence among Women with Somatoform Disorders: A Systematic Review
Authors: Nair Shruti , Nataraj Sushma , Satyanarayana Veena A , Desai Geetha 
Published: August 2023

Background:
Somatoform disorders and medically unexplained symptoms are reported to be common in women and associated with significant disability. Studies have shown that women experiencing Intimate Partner Violence are more likely to report somatic symptoms. This systematic review aims to evaluate the prevalence and clinical correlates of IPV in women presenting with MUS and somatoform disorders. Method: We searched MEDLINE, PsycINFO, Web of Science, Scopus and Gray literature via Google scholar. We included studies which gave data on prevalence of Intimate Partner Violence in women with somatoform disorders and medically unexplained symptoms from 2000 to 2020. The Inclusion criteria for this review were women between 18-59 years of age with a diagnosis of somatoform disorders or medically unexplained symptoms and outcome measure taken as prevalence of IPV.

Results:
A total of 157 articles were screened of which 2 articles were taken for data extraction. The two studies included for data extraction were not suitable for prevalence estimates. There appeared to be no uniformity in identifying medically unexplained symptoms and Intimate Partner Violence.

Conclusion:
This systematic review shows an appalling gap in research in women with medically unexplained symptoms. It also brings out the need to have an uniform assessment and evaluation of medically unexplained symptoms and Intimate Partner Violence.
Extent and Severity of Internet Addiction in Persons with Common Mental Disorders: A Cross-Sectional Study
Authors: Sidana Ajeet , Aggarwal Sonali , Jhalli Arshdeep , Kardam Kampila 
Published: August 2023

Background:
There is a scarcity of literature about Internet addiction (IA) in common mental disorders (CMDs) such as depression, anxiety, obsessive-compulsive disorder, and substance use disorders. Early identification of IA in CMDs can help in better management of both disorders.

Aims:
To assess the extent and severity of IA in persons with CMDs.

Methodology:
This was a cross-sectional, single-group, exploratory study conducted at the Department of Psychiatry of tertiary care teaching hospital in North India. Patients aged 18 years and above and diagnosed with CMDs (Neurotic and stress-related disorders, Depressive Disorder, and substance use disorder) as per the ICD-11 criteria were included in the study after taking written informed consent. The severity of CMDs was assessed on Hamilton Anxiety Rating Scale (HAM-A), Hamilton Depression Rating Scale (HAM-D), Yale-Brown Obsessive-compulsive Scale, Severity of Alcohol Dependence Questionnaire and Severity of Opioid Dependence Questionnaire. The level of IA was assessed using Young’s IA Test.

Results:
A total of 150 patients diagnosed with CMDs were included. Males were slightly more than females (56% v/s 44%), most were younger than 40 years of age (55.3%), married (66.7%) and from urban (65.3%) background. Out of 150, 84 (56%) had depressive disorder, 45 (30%) had anxiety disorder, 15 (10%) had OCD and only 6 (4%) had substance use disorders. 69 (46%) participants had IA (36 mild and 33 moderate) and none had severe IA. A significant association was found between IA and CMDs (P < 0.05). Age, marital status, and type of residence were independent predictors or risk factors for IA.

Conclusion:
The index study concludes that there is a strong association between CMDs and IA. About half of persons with CMDs have IA.
Suicidal Behavior Prevalence and Sociodemographic Determinants Among Delhi College Students: Findings from a Cross-Sectional Study
Authors: Gangipogu Vijay Kumar , Chaudhary Vineet , Saraswathy Kallur Nava , Jain Sonal 
Published: August 2023

Background:
The high burden of suicide among young adults is a matter of grave concern worldwide. Yet only a few studies from India have attempted to explore the region-specific prevalence and determinants of suicidal behavior. Considering this research gap, the present study was undertaken to capture the prevalence and sociodemographic determinants of suicidal behavior among college-going young adults residing in Delhi.

Materials and Methods:
This cross-sectional study was carried out among 272 (59.20% females) college-going young adults (aged 18–30 years) of Delhi. Data on sociodemographic variables were captured through a pretested and modified interview schedule. Screening for suicidal behavior was done using the Suicide Behavior Questionnaire-Revised. Statistical analysis was performed using SPSS version 22.

Results:
Suicidal behavior was present in 18.01% of the studied participants. The prevalence of suicidal behavior was significantly higher among females (21.73%) than among males (12.61%) (P < 0.05), suggesting females are at a higher risk than males. Other sociodemographic variables (age, education level, state of origin, social category, religion, and family income) were not found to be associated with suicidal behavior except for the social category, where participants belonging to reserved castes were found to be at relatively lower risk of having suicidal behavior than those belonging to the unreserved category.

Conclusions:
The prevalence of suicidal behavior among the participants is quite high. Region-specific data on suicide-related behavior is important for averting completed suicides and preventing devastating outcomes among young adults.