bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGEMBANGAN BAHAN AJAR BERBASIS PROJECT BASED LEARNING DENGAN MATERI SISTEM PERNAPASAN MANUSIA PADA PEMBELAJARAN IPA KELAS VIII SMPS HANURA DANGA
Authors: Zae Maria Fridolin , Gelu Afrianus 
Published: December 2024

Urgensi dari penelitian ini adalah pentingnya mengembangkan modul ajar berbasis Project Based Learning untuk mendorong keterlibatan aktif siswa, meningkatkan pemahaman konsep proses pembelajaran IPA materi Sistem Pernapasan Manusia di SMPS Hanura Danga. Modul ajar ini diharapkan membantu siswa-siswi mengembangkan bahan ajar berbasis Project Based Learning. Tujuan dari penelitian ini adalah untuk mengenal pengembangan bahan ajar berbasis project based learning dengan materi sistem pernapasan manusia pada pembelajaran IPA dan untuk dapat mendesain dan meningkatkan kelayakan bahan ajar Berbasis Project Based Learning saat diterapkan dalam pembelajaran IPA materi Sistem Pernapasan Manusia. Metode yang digunakan adalah penelitian pengembangan atau yang sering disebut dengan penelitian R&D ( Research and Development).
Teknik pengumpulan data yang dilakukan adalah observasi , wawancara, kuesioner, dan analisis dokumen. Dengan menggunakan teknik pengumpulan tersebut dapat mengumpulkan data yang komprehensif untuk mengevaluasi dan mengembangkan bahan ajar berbasis Project Based Learning dalam pembelajaran IPA kelas VIIl SMPS Hanura Danga. Untuk menganalisis data dari proposal pengembangan bahan ajar berbasis Project Based Learning dengan materi sistem pernapasan manusia pada pembelajaran IPA kelas VIII SMPS Hanura Danga, dapat menggunakan analisis kualitatif dan kuantitatif.
PENGARUH STRATEGI TRADING PLACE TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA SEKOLAH DASAR
Authors: Muhsam Julhidayat , Sanjaya Dewa Bagus , Suastika I Nengah 
Published: December 2024

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan strategi Trading Place terhadap kemampuan pemecahan masalah siswa pada materi hak dan kewajiban siswa SD. Jenis penelitian ini kuantitatif dengan metode Pre-Eksperimental Design (Non-Design), dengan One Group Pretest-Postest desain. Populasi penelitian ini ialah peserta didik kelas IV SD Muhammadiyah 1 Kupang yang berjumlah 28 peserta didik dengan sampel sebanyak 28 peserta didik. penelitian ini menggunakan teknik sampling jenuh. Pengumpulan data pada penelitian ini menggunakan tes. Teknik analisis data yang digunakan ialah uji normalitas menggunakan Kolmogorov-Smirnov beserta uji hipotesis mengunakan uji Paired-Sampel T-Test. Hasil perhitungan terdapat nilai rata-rata pretest sebanyak 55.89 dan nilai rata-rata posttest sebanyak 79.91. Kemudian, berdasarkan perhitungan nilai uji normalitas pretest 0,114 ? 0,240 dan posttest 0,140 ? 0,250, maka dapat disimpulkan bahwa data berdistribusi normal. Uji hipotesis diperoleh nilai thitung = 10,176 lebih besar dari nilai ttabel = 1,703 maka Ha diterima dan Ho ditolak. Jadi dapat disimpulkan bahwa terdapat pengaruh penggunaan strategi Trading Place terhadap kemampuan pemecahan masalah siswa pada materi hak dan kewajiban kelas IV SD Muhammadiyah 1 Kupang.
PENGEMBANGAN BUKU TEKS BERBASIS PROJECT BASED LEARNING UNTUK MENUMBUHKAN KARAKTER ANAK
Authors: Sari Laurensia Clara Lustia , Nugrahanta Gregorius Ari 
Published: December 2024

Penelitian ini bertujuan untuk mengembangkan buku teks perkembangan peradaban senjata untuk menumbuhkan karakter rasa ingin tahu. Penelitian menggunakan metode R & D tipe ADDIE. Penelitian ini melibatkan sepuluh guru SD bersertifikasi dan lima ahli sebagai validator, serta delapan anak untuk uji coba terbatas. Uji coba menggunakan soal sumatif berjumlah 10 dan formatif berjumlah 50 yang telah berhasil dalam tahap uji validitas, reliabilitas dan uji kesukaran dengan kategori “sedang”. Hasil penelitian menunjukkan 1) Pengembangan buku teks disesuaikan dengan tahapan ADDIE, 2) Penilaian dari validator terhadap kualitas buku teks memperoleh skor rerata (3,82 skala 1 - 4) masuk dalam kategori “Sangat baik” yang menunjukkan tidak perlu revisi, 3) Penerapan buku teks berpengaruh secara signifikan terhadap karakter rasa ingin tahu (p < 0,05) dengan efek besar (r = 0,89) atau setara 79,5 % dan tingkat efektivitas menengah (N-gain score 45,67 %).
Far-side Active Regions Based on Helioseismic and EUV Measurements: A New Data Set for Heliospheric Machine Learning Advancements
Authors: Hamada Amr , Jain Kiran , Lindsey Charles , Creelman Mitchell , Oien Niles 
Published: December 2024

Abstract
Active Regions (ARs) are regions of strong magnetic flux in the solar atmosphere. Understanding the global evolution of ARs is critical for solar magnetism as well as for accurate space-weather forecasting. We present the first far-side AR data set based on EUV observation and helioseismic measurements. For the EUV observations, we use synchronic maps at 304 Å comprised of observations from the Solar Dynamics Observatory/Atmospheric Imaging Assembly and the Solar TErrestrial RElations Observatory/Extreme UltraViolet Imager, in heliocentric orbit with direct vantages into the Sun’s far hemisphere. We used the brightening of the solar transition region in EUV/304 Å maps as a proxy for the magnetic regions. For the far-side helioseismic measurements, we used seismic phase-shift maps of the Sun’s far hemisphere, computed from helioseismic Dopplergrams observed by NSO/Global Oscillations Network Group (GONG). In this study, we present the first global EUV AR data set of the whole Sun, providing several basic parameters, such as location, area, tilt angle, EUV brightness, and latitudinal/longitudinal extents of the identified ARs. We also present a similar data set for the far-side GONG ARs where the helioseismic phase shift parameters are included. Helioseismic far-side GONG ARs are examined, and their success at predicting strong ARs is assessed. We discuss the temporal and spatial evolution for the EUV AR signatures and far-side GONG AR signatures during the ascending and maximum phases of Solar Cycle 24 (2010 May–2016 May). We examine the correlation between the helioseismic signatures and the respective EUV source distributions in the Sun’s far hemisphere. We present the first far-side AR butterfly diagram based on helioseismic measurements.
The Nature of a Recently Discovered Wolf–Rayet Binary: Archetype of Stripping?*
Authors: Massey Philip , Neugent Kathryn F. , Morrell Nidia I. , Hillier Desmond John , Penny Laura R. 
Published: December 2024

Abstract
LMCe055-1 was recently discovered in a survey for Wolf–Rayets (WRs) in the Large Magellanic Cloud, and classified as a WN4/O4, a lower-excitation version of the WN3/O3 class discovered as part of the same survey. Its absolute magnitude precluded it from being a WN4+O4 binary. Optical Gravitational Lensing Experiment photometry shows shallow primary and secondary eclipses with a 2.2 days period. The spectral characteristics and short period pointed to a possible origin due to binary stripping. Such stripped WR binaries should be common but have proven elusive to identify conclusively. In order to establish its nature, we obtained Hubble Space Telescope ultraviolet and Magellan optical spectra, along with imaging. Our work shows that the WR emission and He ii absorption arise in one star, and the He i absorption in another. The He i contributor is the primary of the 2.2 days system and exhibits ∼300 km s−1 radial velocity variations on that timescale. However, the WR star shows 30–40 km s−1 radial velocity variations, with a likely 35 days period and a highly eccentric orbit. Possibly LMCe055-1 is a physical triple, but that would require the 2.2 days pair to have been captured by the WR star. A more likely explanation is that the WR star has an unseen companion in a 35 days orbit and that the 2.2 days pair is in a longer-period orbit about the two. Such examples of multiple systems are well known among massive stars, such as HD 5980. Regardless, we argue that it is highly unlikely that the WR component of the LMCe055-1 system resulted from stripping.
Mining for Protoclusters at z ∼ 4 from Photometric Data Sets with Deep Learning
Authors: Takeda Yoshihiro , Kashikawa Nobunari , Ito Kei , Toshikawa Jun , Momose Rieko , Fujiwara Kent , Liang Yongming , Ishimoto Rikako , Yoshioka Takehiro , Arita Junya , Kubo Mariko , Uchiyama Hisakazu 
Published: December 2024

Abstract
Protoclusters are high-z overdense regions that will evolve into clusters of galaxies by z = 0, making them ideal for studying galaxy evolution expected to be accelerated by environmental effects. However, it has been challenging to identify protoclusters beyond z = 3 only by photometry due to large redshift uncertainties hindering statistical study. To tackle the issue, we develop a new deep-learning-based protocluster detection model, PCFNet, which considers a protocluster as a point cloud. To detect protoclusters at z ∼ 4 using only optical broadband photometry, we train and evaluate PCFNet with mock g-dropout galaxies based on the N-body simulation with the semianalytic model. We use the sky distribution, i-band magnitude, (g − i) color, and the redshift probability density function surrounding a target galaxy on the sky. PCFNet detects 5 times more protocluster member candidates while maintaining high purity (recall = 7.5% ± 0.2%, precision = 44% ± 1%) than conventional methods. Moreover, PCFNet is able to detect more progenitors (

M

halo

z
=
0

=

10

14
−
14.5

M

⊙

) that are less massive than supermassive clusters like the Coma cluster. We apply PCFNet to the observational photometric data set of the Hyper Suprime-Cam Strategic Survey Program Deep/UltraDeep layer (∼17 deg2) and detect 121 protocluster candidates at z ∼ 4. We find that the rest-UV luminosities of our protocluster member candidates are brighter than those of field galaxies, which is consistent with previous studies. Additionally, the quenching of satellite galaxies depends on both the core galaxy’s halo mass at z ∼ 4 and accumulated mass until z = 0 in the simulation. PCFNet is very flexible and can find protoclusters at other redshifts or in future extensive surveys by Euclid, Legacy Survey of Space and Time, and Roman.
Fate of the Remnant in Tidal Stripping Event: Repeating and Nonrepeating
Authors: Chen 陈 Jin-Hong 劲鸿 , Dai 戴 Lixin 丽心 , Liu 刘 Shang-Fei 尚飞 , Ou 欧 Jian-Wen 建文 
Published: December 2024

Abstract
Tidal disruption events (TDE) occur when a star ventures too close to a massive black hole. In a partial TDE (pTDE), the star only grazes the tidal radius, causing the outer envelope of the star to be stripped away while the stellar core survives. Previous research has shown that a star, once tidally stripped in a parabolic orbit, can acquire enough orbital energy for its remnant to become a high-velocity star potentially capable of escaping the galaxy. Conversely, some studies have reported that the remnant may lose orbital energy and undergo re-disruption, leading to a recurring pTDE. This study aims to uncover the physical mechanisms and determine the conditions that lead to these divergent outcomes. We find that the orbital energy change only depends on the impact factor and the stellar structure, and barely depends on the mass of the black hole or the exact mass or orbital eccentricity of the star. For a γ = 5/3 (or γ = 4/3) polytropic star, after a pTDE its remnant gains orbital energy when the impact factor β ≳ 0.62 (or ≳1.1) or loses energy and vice versa. Additionally, we verify an analytical equation for orbital energy change that is applicable across various systems. Through hydrodynamic simulations, we also explore the structure of the stellar remnant post-tidal stripping. Our findings provide critical insights for interpreting observed pTDEs and advancing knowledge on the orbital evolution and event rate of these events.
Evidence for a Sharp CO Snow Line Transition in a Protoplanetary Disk and Implications for Millimeter-wave Observations of CO Isotopologues
Authors: Qi Chunhua , Wilner David J. 
Published: December 2024

Abstract
Observations of CO isotopologue emission from protoplanetary disks at millimeter wavelengths are a powerful tool for probing the CO snow line, an important marker for disk chemistry, and also for estimating total disk gas mass, a key quantity for planet formation. We use simple models to demonstrate that the vertical thickness of an isothermal layer around the disk midplane has important effects on the CO column density radial profile, with a thick layer producing a sharp CO snow line transition. We simulate next-generation Very Large Array (ngVLA) and Atacama Large Millimeter/submillimeter Array (ALMA) images to show that this sharp change in the CO column density can be detected in the derivative of the radial profile of emission from optically thin CO isotopologue lines. We apply this method to archival ALMA observations of the disk around the Herbig Ae star HD 163296 in the C17O and C18O J = 1–0 and J = 2–1 lines to identify a sharp CO snow line transition near ∼80 au (0.″8 at 101 pc), and show the CO column density decreases by more than a factor of 20. This finding is consistent with previous inferences from the steep rise of N2H+ emission, which marks the location where CO depletes. We also demonstrate that the disk’s thermal structure introduces significant systematic uncertainty to estimates of total disk gas mass derived from these lines. The substantial improvement in sensitivity envisioned for the ngVLA over ALMA for observations of ground-state lines of CO isotopologues has the potential to extend this approach to a much larger population of disks.
Visual Orbits of Wolf–Rayet Stars. I. The Orbit of the Dust-producing Wolf–Rayet Binary WR 137 Measured with the CHARA Array
Authors: Richardson Noel D. , Schaefer Gail H. , Eldridge Jan J. , Spejcher Rebecca , Holdsworth Amanda , Lau Ryan M. , Monnier John D. , Moffat Anthony F. J. , Weigelt Gerd , Williams Peredur M. , Kraus Stefan , Le Bouquin Jean-Baptiste , Anugu Narsireddy , Chhabra Sorabh , Codron Isabelle , Ennis Jacob , Gardner Tyler , Gutierrez Mayra , Ibrahim Noura , Labdon Aaron , Lanthermann Cyprien , Setterholm Benjamin R. 
Published: December 2024

Abstract
Classical Wolf–Rayet (W-R) stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as Type Ib/c supernovae. The mechanisms for losing their hydrogen envelopes are either through binary interactions or through strong stellar winds potentially coupled with episodic mass loss. Among the bright classical W-R stars, the binary system WR 137 (HD 192641; WC7d + O9e) is the subject of this paper. This binary is known to have a 13 yr period and produces dust near periastron. Here we report on interferometry with the Center for High Angular Resolution Astronomy Array collected over a decade of time and providing the first visual orbit for the system. We combine these astrometric measurements with archival radial velocities to measure masses of the stars of M
WR = 9.5 ± 3.4 M
⊙ and M
O = 17.3 ± 1.9 M
⊙ when we use the most recent Gaia distance. These results are then compared to predicted dust distribution using these orbital elements, which match the observed imaging from JWST as discussed recently by Lau et al. Furthermore, we compare the system to the Binary Population And Spectral Synthesis models, finding that the W-R star likely formed through stellar winds and not through binary interactions. However, the companion O star did likely accrete some material from the W-R star’s mass loss to provide the rotation seen today that drives its status as an Oe star.
On the Acceleration Site of Anomalous Cosmic Rays: Voyager 2 Observations of Their Anisotropy in the Heliosheath
Authors: Cummings A. C. , Kóta J. , Richardson J. D. , Rankin J. S. , Heikkila B. C. 
Published: December 2024

Abstract
We present the diffusive flow anisotropy vector components for ∼0.5–35 MeV anomalous cosmic-ray (ACR) protons observed during Voyager 2 roll maneuvers for the magnetometer instrument in the inner heliosheath. The diffusive flow results are derived from the differences between the observed anisotropy components presented in A. C. Cummings et al. (2021) and the Compton–Getting anisotropies based on measurements of the solar wind speeds from the Plasma Science instrument. We find that the tangential component of the derived diffusive anisotropy vector is in reasonable agreement, both in direction and magnitude, with a numerical model of the acceleration and transport of ACRs by diffusive shock acceleration along a nonspherical solar wind termination shock (TS). The results suggest that there exists a diffusive flow of these particles from the flank or tail of the heliosphere toward the nose, and support models in which higher-energy ACRs are accelerated in the flank or tail of the TS.
The Impact of Water Clouds on the Prospective Emission Spectrum of Teegarden’s Star b as Observed by LIFE
Authors: Boukrouche Ryan , Caballero Rodrigo , Janson Markus 
Published: December 2024

Abstract
Nontransiting terrestrial planets will be accessible by upcoming observatories of which LIFE is an example. Planet b orbiting Teegarden’s Star is one of the optimal targets for such missions. We use a one-dimensional atmospheric model with real gas radiation, a multispecies pseudo-adiabatic convection-condensation scheme, and a water cloud scheme to estimate the impact of the cloud coverage on the emission spectrum of the target, as well as to assess how sensitive LIFE could be to changes in outgoing flux caused by these clouds. Though the emergent flux decreases with a higher cloud coverage, it does not decrease by more than 1 order of magnitude as the coverage increases from 0% to 90%. This allows LIFE to retain a high sensitivity to the cloud cover fraction for wavelengths longer than 7 μm. In this spectral range, with at least 1 bar of N2, LIFE is able to distinguish cloud cover fractions as small as 10% given an integration time of 24 hr, and yields much better precision with a week-long integration. An integration time of 1 week also allows the resolution of local variations in spectral flux, which can lead to easier molecule identification. This ability remains if the planet is a CO2-dominated Venus analog. Partial pressures of N2 lower than 1 bar may create a degeneracy with the cloud cover fraction. LIFE shows promising potential for detecting and characterizing atmospheres even with a high cloud coverage, and retaining a fine sensitivity to relatively small differences in cloud cover fractions.
Information-theory-based System-level Babcock–Leighton Flux Transport Model–Data Comparisons
Authors: Wing Simon , Johnson Jay R. , Dikpati Mausumi , Nurhan Yosia I. 
Published: December 2024

Abstract
System-level Babcock–Leighton flux transport model–data comparisons are performed using information theory. The model is run with a maximum meridional flow speed of 16.5 m s−1 with the flow speed systematically varied by 20% (BLFT20) and 50% (BLFT50). Overall, the comparisons show that the models qualitatively capture much of the information flow among the toroidal field (sunspot number), polar field, and meridional flow. BLFT20 generally compares better than BLFT50, suggesting that meridional flow variation of 20% may be more realistic than 50%. However, the information flow from the meridional flow to the polar field is captured better in BLFT50. There is more information flow from the sunspot number to the polar field than the other way around in BLFT20 and observations. The information flow from the polar field to the sunspot number peaks at lag times (τ) of ∼2 yr and 7–9 yr in observations and BLFT20. The results can shed light on the nature of the Sun’s magnetic memory, the diffusive/dissipative processes, and advection in the turbulent flux transport at the Sun.
Aragon poète. Écrire pour croire
Authors: Le Ray Johanne 
Published: December 2024

Le livre a pour objet un sujet central dans l’œuvre d’Aragon, celui du besoin de croire. Pour rendre compte du « goût de l’absolu » et de son incarnation, au-delà du pôle d’attraction constitué par l’amour, dans le corps-à-corps avec l’Histoire, l’ouvrage invite à un parcours chronologique, du renouveau poétique que représente Le Crève-cœur (1939) au grand poème de la crise de l’utopie communiste qu’est Le Fou d’Elsa (1963). Il permet ainsi de figurer l’itinéraire singulier d’un poète particulièrement sensible à la puissance des mythes, capable d’en forger de très efficaces au temps de la Résistance, affronté enfin à la « croix de croire ». Rare publication consacrée à l’œuvre poétique d’Aragon, le livre a l’originalité de l’aborder au prisme d’une question centrale quoique très peu traitée, et de doubler l’analyse purement littéraire d’une approche anthropologique, psychanalytique et philosophique. Il revisite également un quart de siècle d’histoire mondiale, tout en mettant en lumière la force du besoin de croire dans nos sociétés sécularisées – question éminemment actuelle.
Effectivity of Percutaneous Nephrolithotomy versus Retrograde Intrarenal Surgery on Kidney Stone: A Single-center Experience
Authors: Fauzi Muhammad Fachri , Djojodimedjo Tarmono , Soebadi Mohammad Ayodhia , Sharin Mohamad Fairuz Mohamad 
Published: December 2024

Introduction:
Urinary tract stones are one of the most prevalent urological diseases worldwide. Percutaneous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS) are two primary treatment modalities for the said disease. This study analyzes and compares the clinical characteristics and outcomes of kidney stone patients undergoing PCNL and RIRS in Indonesia.

Methods:
We retrospectively analyzed patients with urinary tract stones who underwent PCNL and RIRS in a single hospital. Patient characteristics were retrieved from medical records between January 2022 and December 2023. We compared the age, gender, number, size of stones, as well as preoperative imaging, comorbid diseases, and stone-free rate (SFR) of the patients.

Results:
From January 2022 to December 2023, 116 cases of kidney stones were found in Universitas Airlangga Hospital. Sixteen patients underwent the RIRS procedure, and 100 patients underwent the PCNL procedure.

Conclusions:
Patients who underwent PCNL procedures for kidney stones are generally men over 40 years old with kidney stones larger than 2 cm and < 2 cm for RIRS procedures. The PCNL procedure has an overall higher SFR than the RIRS procedure, especially for large and complex stones. However, RIRS has a higher success rate for stones under 2 cm. The SFR of both modalities decreases as the Guy’s stone score increases.
A Prospective Randomized Comparison of INTELLIVENT-ASV and PSV Modes in Terms of Weaning in Intensive Care Patients, Istanbul, Turkiye
Authors: Tatlisuluoglu D , Alay GH , Turan G 
Published: December 2024

Background:
INTELLIVENT-Adaptive Support Ventilation (I-ASV; C6; Hamilton Medical; Bonaduz, Switzerland) is a closed-loop ventilation mode that continuously controls the patient’s ventilation and oxygenation. It sets the minute ventilation, PEEP, and oxygen levels based on the targets set by the clinician and on physiological input from the patient.

Aim:
The aim was to compare I-ASV and PSV modes regarding weaning in intensive care patients.

Methods:
A total of 140 patients who were over the age of 18 years, did not have a neuromuscular disease, and had been ventilated for at least 48 hours were reviewed. Using the sequential method, patients who met the requirements for weaning were put into two groups: I-ASV and PSV (pressure support ventilation).

Results:
The mean age of the I-ASV group (n = 70) and the PSV group (n = 70) was 49.11 ± 17.74 and 49.92 ± 22.00, respectively. In the group using I-ASV, FiO2 was 30.12 ± 10.04%, inspiratory pressure (Pinsp) was 8.71 ± 2.78 cm H2O, and Ppeak value was 11.67 ± 2.78 cm H2O, which were significantly lower than those in the PSV mode (P < 0.001). The PEEP value was significantly lower in the PSV mode (P < 0.001). However, asynchrony-tachycardia was significantly higher in the I-ASV group (28 (20%)) compared to the PSV group (11 (7.9%)) (P < 0.003).

Conclusion:
I-ASV mode had no effect on weaning duration compared to PSV mode but decreased PEEP, FiO2, Pinsp, and Ppeak values in weaning patients.