bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perbandingan Kapasitas Vital Paksa Perokok Elektronik dan Perokok Tembakau
Authors: Siwu Imanuel L. , Engka Joice N. A. , Marunduh Sylvia R. 
Published: February 2025

Abstract: Smoking can cause reduced lung function such as decreased forced vital capacity (FVC), heart diseases, and cancer. An electronic cigarette or vape is an electrically powerful device that heats an e-liquid aerosol containing propylene, glycerin, glycol, nicotine, and various additives to produce aerosols that can be breathed. Electronic cigarettes are popular because they are considered as safer and healthier device than conventional cigarettes since they do not contain tobacco that is hazardous to health. This study aimed to find out the comparison of forced vital capacity of electronic smokers with tobacco smokers among students of Universitas Sam Ratulangi. This was an observational and analytical study with a cross-sectional study design. Samples consisted of 51 students obtained by using the purposive sampling method and met the inclusion and exclusion criteria. The results showed that highest percentages were found in respondents aged 20 years (39.2%), tobacco smokers (58.8%), and low FVC (76.5%). The independent sample t-test used to compare the FVC of electronic smokers with tobacco smokers obtained a p-value of 0.719 indicating there was no significant difference between the two groups. In conclusion, there is no significant comparison between the forced vital capacity values of electronic smokers and tobacco smokers among students of Universitas Sam Ratulangi.
Keywords: FVC, electronic smokers; tobacco smokers

Abstrak: Merokok dapat menyebabkan penurunan fungsi paru antara lain penurunan kapasitas vital paksa (KVP), penyakit jantung dan kanker. Rokok elektronik atau vape adalah sebuah perangkat berdaya listrik yang memanaskan aerosol e-liquid yang mengandung propilena, gliserin, glikol, nikotin dan berbagai perasa yang aditif untuk menghasilkan aerosol yang bisa di hirup. Rokok elektronik atau vape populer karena dianggap sebagai perangkat yang lebih aman dan sehat daripada rokok konvensional karena tidak memiliki kandungan tembakau yang berbahaya bagi kesehatan. Penelitian ini bertujuan untuk mengetahui perbandingan KVP perokok elektronik dan perokok tembakau pada mahasiswa Universitas Sam Ratulangi. Jenis penelitian ialah analitik observasional dengan desain potong lintang. Sampel berjumlah 51 mahasiswa yang diperoleh dengan metode purposive sampling serta memenuhi kriteria inklusi dan eksklusi. Hasil penelitian mendapatkan persentase tertinggi pada responden berusia 20 tahun (39,2%), perokok tembakau (58,8%), dan hasil pengukuran KVP dengan nilai low (76,5%). Hasil uji independent sample t-test terhadap KVP perokok tembakau dan elektronik memperoleh nilai p=0,719, yang membuktikan bahwa tidak terdapat perbedaan bermakna antara nilai KVP perokok elektronik dan perokok tembakau. Simpulan penelitian ini ialah tidak terdapat perbandingan bermakna antara nilai kapasitas vital paksa perokok elektronik dan perokok tembakau pada mahasiswa Universitas Sam Ratulangi.
Kata kunci: kapasitas vital paksa; perokok elektronik; perokok tembakau
Risk Factors for the Development of Invasive Fungal Infection and Cytomegalovirus Infection in Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation
Authors: Köksoy Elif Berna , Kubilay Tolunay Pınar , Ateş Can , Topçuoğlu Pervin 
Published: February 2025

Objective: Invasive fungal infections (IFI) and Cytomegalovirus (CMV) infections are seen in gradually increasing frequencies in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. This study aimed to evaluate the risk factors for the development of IFI and CMV infections in allo-HSCT recipients.
Materials and Methods: The risk factors for IFI and CMV infection development before and after transplantation were analyzed in 379 allo-HSCT patients, 370 of whom underwent transplantation between June 1, 2005, and May 17, 2012, at the Stem Cell Transplantation Unit of the Hematology Department, Ankara University Faculty of Medicine. The characteristics of allo-HSCT recipients and donors and the data about the allo-HSCT process were retrospectively evaluated.
Results: According to the EORTC/MSG criteria, probable and/or proven IFI was identified in 63 allo-HSCT patients (16.6%). In the univariate analysis, IFI development was significantly associated with conditioning regimen type (myeloablative vs. reduced intensity), graft-versus-host disease (GvHD) prophylaxis, CMV infection occurrence, frequency and timing, thrombocyte engraftment, and mortality. In the multivariate logistic regression analysis, CMV infection and the absence of thrombocyte engraftment were found to increase the risk of IFI development by 3.66-fold (95% confidence interval [CI]: 1.696–7.937, p=0.001) and 2.45-fold (95% CI: 1.043–5.785, p=0.040), respectively. CMV infection occurred in 243 allo-HSCT patients (64.1%). In the univariate analysis, CMV infection development was significantly associated with recipient and donor age, acute and chronic GvHD, IFI occurrence, neutrophil and thrombocyte engraftment, and transplantation-related mortality. However, none of these associations remained statistically significant in the multivariate logistic regression analysis.
Conclusion: The identification of CMV infection and the absence of thrombocyte engraftment as significant risk factors for IFI development in allo-HSCT recipients underscores the need for tailored preventive strategies. A more personalized approach to post-transplant care, incorporating early detection and targeted interventions, could enhance patient outcomes and reduce IFI-related complications.
STRATEGI PENGEMBANGAN USAHA PADA BISNIS HIJABBYSLS DENGAN PENDEKATAN ANALISIS SOAR
Authors: Nawang Sari Yuni , Kurniawan Aries , Rahmi Vembri Aulia 
Published: February 2025

Hijabbysls merupakan industri rumahan yang memproduksi hijab dengan skala besar dengan penjualan online yang cukup banyak hingga 10.000 pcs, Namun pada saat ini hijabbysls mengalamai berbagai tantangan. Pengembangan usaha dalam industri hijab saat ini menjadi tantangan yang kompleks seperti persaingan yang ketat, perubahan tren mode yang cepat, serta meningkatnya kesadaran konsumen akan keberlanjutan dan etika dalam produksi. Selain itu, dengan munculnya banyak merek hijab baru dan inovasi desain, pelaku usaha harus terus berinovasi agar dapat mempertahankan daya saing sehingga memerlukan metode yang relevan guna meraih keunggulan kompetitif. Penelitian ini bertujuan untuk menemukan strategi pengembangan bisnis yang tepat serta mengetahui strategi yang sudah dilakukan bisnis Hijabbysls. Hijabbysls juga sering mengalami kenaikan dan penurunan penjualan disetiap tahunnya, Untuk bertahan di pasar online, hijabbysls harus melakukan analisis lebih dalam untuk mengetahui strategi persaingan di industri fashion hijab. Metodologi penelitian kualitatif dengan pendekatan fenomologi yang digunakan dalam artikel ini. Pengkajian ini menghasilkan bila cara mengembangkan bisnis yang dilakukan bisnis Hijabbysls sudah cukup baik serta analisa SOAR (Strengths, Opportunities, Aspirations, and Results) ini bersifat positif untuk kelanjutan bisnis Hijabbysls di masa yang akan datang.
Jiwar: A database and calculator for word neighborhood measures in 40 languages
Authors: Alzahrani Alaa 
Published: February 2025

Abstract
The majority of neighborhood calculators are restricted to one language. The limited availability of multilingual neighborhood calculators could pose challenges for conducting psycholinguistic research on low-resource languages. Therefore, this study introduced Jiwar, a database and calculator for neighborhood information across three levels (orthographic, phonological, and phonographic) across 40 languages. The database contains information for 24 linguistic and neighborhood measures, while the Python-based calculator allows users to compute more than 46 neighborhood measures for words and nonwords. This study further examined the Jiwar calculator’s instrument reliability and validity. Correlations with previous datasets across several languages suggested the strong reliability of two key Jiwar measures. Multiple-linear regression models revealed that a subset of Jiwar measures significantly predicted behavioral results in lexical decision and visual naming tasks, indicating the validity of the Jiwar calculator. Jiwar is an open-source, Python-based tool that is designed to expand to more languages and functions.
Candidate RR Lyrae Associated with the Ultrafaint Dwarf Galaxy Aquarius III
Authors: Ngeow Chow-Choong , Bhardwaj Anupam 
Published: February 2025

Abstract
We report the search of RR Lyrae in the vicinity of a newly discovered ultrafaint dwarf galaxy, Aquarius III. Based on the known RR Lyrae catalogs and gri-band light curves retrieved from public archives, we identified a RR Lyrae with distance, metallicity, and proper motion consistent with Aquarius III. Therefore, this RR Lyrae is the first variable star identified to be associated with Aquarius III, despite its projected distance is more than 15 times the half-light radius of Aquarius III. On the other hand, a dedicated time-series monitoring of the central part of Aquarius III, out to a projected radius of approximately four half-light radius, revealed there is no RR Lyrae in this region. We ran a set of synthetic color–magnitude diagrams with properties similar to Aquarius III, and found a nonnegligible probability that Aquarius III could have (at least one) RR Lyrae. We have also identified a RR Lyrae candidate but most likely it is a background halo star.
Stream Members Only: Data-driven Characterization of Stellar Streams with Mixture Density Networks
Authors: Starkman Nathaniel , Nibauer Jacob , Bovy Jo , Webb Jeremy J. , Tavangar Kiyan , Price-Whelan Adrian , Bonaca Ana 
Published: February 2025

Abstract
Stellar streams are sensitive probes of the Milky Way’s gravitational potential. The mean track of a stream constrains global properties of the potential, while its fine-grained surface density constrains galactic substructure. A precise characterization of streams from potentially noisy data marks a crucial step in inferring galactic structure, including the dark matter, across orders of magnitude in mass scales. Here we present a new method for constructing a smooth probability density model of stellar streams using all of the available astrometric and photometric data. To characterize a stream’s morphology and kinematics, we utilize mixture density networks to represent its on-sky track, width, stellar number density, and kinematic distribution. We model the photometry for each stream as a single-stellar population, with a distance track that is simultaneously estimated from the stream’s inferred distance modulus (using photometry) and parallax distribution (using astrometry). We use normalizing flows to characterize the distribution of background stars. We apply the method to the stream GD-1, and the tidal tails of Palomar 5. For both streams we obtain a catalog of stellar membership probabilities that are made publicly available. Importantly, our model is capable of handling data with incomplete phase-space observations, making our method applicable to the growing census of Milky Way stellar streams.
Geometry of the Comptonization Region of MAXI J1348−630 through Type-C Quasiperiodic Oscillations with NICER
Authors: Alabarta Kevin , Méndez Mariano , García Federico , Altamirano Diego , Zhang Yuexin , Zhang Liang , Russell David M. , König Ole 
Published: February 2025

Abstract
We use the rms and lag spectra of the type-C quasiperiodic oscillation (QPO) to study the properties of the Comptonization region (aka corona) during the low/hard and hard-intermediate states of the main outburst and reflare of MAXI J1348−630. We simultaneously fit the time-averaged energy spectrum of the source and the fractional rms and phase-lag spectra of the QPO with the time-dependent Comptonization model VKOMPTH. The data can be explained by two physically connected coronae interacting with the accretion disk via a feedback loop of X-ray photons. The best-fitting model consists of a corona of ∼103 km located at the inner edge of the disk and a second corona of ∼104 km horizontally extended and covering the inner parts of the accretion disk. The properties of both coronae during the reflare are similar to those during the low/hard state of the main outburst, reinforcing the idea that both the outburst and the reflare are driven by the same physical mechanisms. We combine our results for the type-C QPO with those from previous work focused on the study of type-A and type-B QPOs with the same model to study the evolution of the geometry of the corona through the whole outburst, including the reflare of MAXI J1348−630. Finally, we show that the sudden increase in the phase-lag frequency spectrum and the sharp drop in the coherence function previously observed in MAXI J1348−630 are due to the type-C QPO during the decay of the outburst and can be explained in terms of the geometry of the coronae.
Effect of Lyα Radiative Transfer on Intensity Mapping Power Spectra
Authors: Lujan Niemeyer Maja 
Published: February 2025

Abstract
Clustering of Lyα-emitting galaxies (LAEs) and Lyα line intensity mapping (LIM) are useful probes of cosmology. However, Lyα radiative transfer (RT) effects, such as absorption, line shift, and line broadening, and their dependence on the large-scale density and velocity fields can modify the measured LAE clustering and LIM statistics. We explore the effects of RT on the Lyα LIM power spectrum in two ways: using an analytic description based on linear approximations, and using lognormal mocks. The qualitative effects of intergalactic Lyα absorption on the LIM auto- and cross-power spectrum include a scale-dependent, reduced effective bias, reduced mean intensity, and modified redshift-space distortions. The linear absorption model does not describe the results of the lognormal simulations well. The random line shift suppresses the redshift-space power spectrum similar to the Fingers-of-God effect. In cross-correlation of LAEs or Lyα intensity with a non-Lyα tracer, the Lyα line shift leads to a phase shift of the complex power spectrum, i.e., a cosine damping of the real part. We study the impact of Lyα RT effects on the Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) LAE and LIM power spectra using lognormal mocks. We find that even small amounts of IGM absorption will significantly change the measured LAE auto-power spectrum. The LAE-intensity cross-power spectrum stays within the measurement uncertainty. Therefore, HETDEX will be able to constrain Lyα RT effects.
Can Dark Stars Account for the Star Formation Efficiency Excess at Very High Redshifts?
Authors: Lei 雷 Lei 磊 , Wang 王 Yi-Ying 艺颖 , Yuan 袁 Guan-Wen 官文 , Wang 王 Tong-Lin 彤琳 , Groenewegen Martin A. T. , Fan 范 Yi-Zhong 一中 
Published: February 2025

Abstract
The James Webb Space Telescope (JWST) has recently conducted observations of massive galaxies at high redshifts, revealing a notable anomaly in their star formation efficiency (SFE). Motivated by the recent identification of three ~106
M
⊙ dark star candidates, we investigate whether dark stars can be the origin of the SFE excess. It turns out that the excess can be reproduced by a group of dark stars with M ≳ 103
M
⊙, because of their domination in generating primary UV radiation in high-redshift galaxies. The genesis of these dark stars is attributed to the capture of weakly interacting massive particles within a mass range of tens of gigaelectronvolts to a few teraelectronvolts. However, if the top-heavy initial mass function of dark stars holds up to ~105
M
⊙, the relic black holes stemming from their collapse would be too abundant to be consistent with the current observations of massive compact halo objects. We thus suggest that just a small fraction of SFE excess may be contributed by the very massive dark stars, with the majority likely originating from other sources, such as the Population III stars, in view of their rather similar UV radiation efficiencies.
Exploring the Neutrino Mass Hierarchy from Isotopic Ratios of Supernova Nucleosynthesis Products in Presolar Grains
Authors: Yao Xingqun , Kajino Toshitaka , Luo Yudong , Hayakawa Takehito , Suzuki Toshio , Ko Heamin , Cheoun Myung-Ki , Hayakawa Seiya , Yamaguchi Hidetoshi , Cherubini Silvio 
Published: February 2025

Abstract
We study the nucleosynthesis in a core-collapse supernova (CCSN) model including newly calculated neutrino-induced reaction rates with both collective and Mikheyev–Smirnov–Wolfenstein neutrino flavor oscillations considered. We show that the measurement of a pair of 11B/10B and 138La/139La or 6Li/7Li and 138La/139La in presolar grains that are inferred to have originated from CCSNs could constrain the neutrino mass hierarchy. The new shell model and the model of quasiparticle random phase approximation in the estimate of three important neutrino-induced reactions, ν + 16O, ν + 20Ne, and ν + 138Ba, are applied in our reaction network. The new rates decrease the calculated 7Li/6Li ratio by a factor of 5 compared with the previous study. More interestingly, these new rates result in a clear separation of the isotopic ratio of 11B/10B between normal and inverted mass hierarchies in the O/Ne, O/C, and C/He layers, where 138La abundance depends strongly on the mass hierarchy. In these layers, the sensitivity of the calculated abundances of 10,11B and 6,7Li to the nuclear reaction uncertainties is also tiny. Therefore, we propose that the 11B/10B versus 138La/139La and 6Li/7Li versus 138La/139La in type X silicon carbide grains sampled material from C/He layer can be used as a new probe to constrain the neutrino mass hierarchy.
Modeling Tidal Streams and Tidal Tails around Galaxies Using Deep Wendelstein Imaging Data
Authors: Pippert Jan-Niklas , Kluge Matthias , Bender Ralf 
Published: February 2025

Abstract
From the Λ cold dark matter paradigm, it is expected that galaxies merge and grow in their environments. These processes form various tidal features depending on the merger mass ratio, orbital parameters, and gas richness. We inspected 170

g
′

-band Abell cluster observations from the 2.1 m Fraunhofer-Teleskop Wendelstein and identify 111 of such features from which we select nine streams and five tails. A fast and innovative technique was developed for determining their photometric properties. The model is a Gaussian, including higher-order moments to describe the light profile in slices perpendicular to the elongation direction. From these models, FWHM apertures are generated. The method was developed, tested, and applied on the selected features and corresponding g- and r-band data from the Legacy Survey DR10. Regarding the novel modeling approach, we can measure surface and total brightnesses with precisions of 4% and 7%, respectively. Mean stream width precision, which also translates to the mean R
e along the feature is on average within 3% uncertainty. The measured streams have on average a surface brightness of

∼
26.25

g
′

mag arcsec−2 and are dimmer than the tails in our sample (

∼
25.14

g
′

mag arcsec−2). We infer that the progenitors of our streams can come from dwarfs, early-type galaxies or disks, based on the streams structural parameters. Furthermore, brightnesses and colors of the streams and tails are consistent with those of galaxies that populate the red sequence in the Coma cluster within 2σ.
Understanding Streaming Instabilities in the Limit of High Cosmic-Ray Current Density
Authors: Lichko Emily , Caprioli Damiano , Schroer Benedikt , Gupta Siddhartha 
Published: February 2025

Abstract
A critical component of particle acceleration in astrophysical shocks is the nonresonant (Bell) instability, where the streaming of cosmic rays (CRs) leads to the amplification of magnetic fields necessary to scatter particles. In this work we use kinetic particle-in-cell simulations to investigate the high-CR-current regime, where the typical assumptions underlying the Bell instability break down. Despite being more strongly driven, significantly less magnetic field amplification is observed than in low-current cases, an effect due to the anisotropic heating that occurs in this regime. We also find that electron-scale modes, despite being the fastest growing, mostly lead to moderate electron heating and do not affect the late evolution or saturation of the instability.
The Guitar Filament’s Magnetic Field Revealed by Starlight Polarization
Authors: Dinsmore Jack T. , Romani Roger W. , Mandarakas Nikos , Blinov Dmitry , Liodakis Ioannis 
Published: February 2025

Abstract
The Guitar nebula surrounding PSR B2224+65 boasts a pulsar X-ray filament likely aligned with the local magnetic field. We present new RoboPol stellar polarization data distributed along the line of sight to the pulsar. The polarizing effect of intervening magnetized dust allows us to extract a model for the dust-weighted magnetic field. We detect a magnetic field angle consistent with the filament if the pulsar is located in the more distant zone of its parallax-estimated distance range.
SN 2023zaw: The Low-energy Explosion of an Ultrastripped Star
Authors: Moore T. , Gillanders J. H. , Nicholl M. , Huber M. E. , Smartt S. J. , Srivastav S. , Stevance H. F. , Chen T.-W. , Chambers K. C. , Anderson J. P. , Fulton M. D. , Oates S. R. , Angus C. , Pignata G. , Erasmus N. , Gao H. , Herman J. , Lin C.-C. , Lowe T. , Magnier E. A. , Minguez P. , Ngeow C.-C. , Sheng X. , Sim S. A. , Smith K. W. , Wainscoat R. , Yang S. , Young D. R. , Zeng K.-J. 
Published: February 2025

Abstract
Most stripped-envelope supernova progenitors are thought to be formed through binary interaction, losing hydrogen and/or helium from their outer layers. Ultrastripped supernovae are an emerging class of transient that are expected to be produced through envelope stripping by a neutron star companion. However, relatively few examples are known, and the outcomes of such systems can be diverse and are poorly understood at present. Here we present spectroscopic observations and high-cadence, multiband photometry of SN 2023zaw, a rapidly evolving supernova with a low ejecta mass. SN 2023zaw was discovered in a nearby spiral galaxy at D = 39.7 Mpc. It has significant Milky Way extinction, E(B − V)MW = 0.21, and significant (but uncertain) host extinction. Bayesian evidence comparison reveals that nickel is not the only power source and that an additional energy source is required to explain our observations. Our models suggest that an ejecta mass of M
ej ∼ 0.07 M
⊙ and a synthesised nickel mass of M
Ni ∼ 0.007 M
⊙ are required to explain the observations. We find that additional heating from a central engine, or interaction with circumstellar material, can power the early light curve.
The Influence of Stellar Chromospheres and Coronae on Exoplanet Transmission Spectroscopy
Authors: Perdelwitz Volker , Chaikin-Lifshitz Adam , Ofir Aviv , Aharonson Oded 
Published: February 2025

Abstract
A main source of bias in transmission spectroscopy of exoplanet atmospheres is magnetic activity of the host star in the form of stellar spots, faculae, or flares. However, the fact that main-sequence stars have a chromosphere and a corona and that these optically thin layers are dominated by line emission may alter the global interpretation of the planetary spectrum has largely been neglected. Using a JWST NIRISS/SOSS data set of hot Jupiter HAT-P-18 b, we show that even at near-IR and IR wavelengths, the presence of these layers leads to significant changes in the transmission spectrum of the planetary atmosphere. Accounting for these stellar outer layers thus improves the atmospheric fit of HAT-P-18 b and increases its best-fit atmospheric temperature from

53

6

−
101

+
189

K to

73

6

−
188

+
376

K, a value much closer to the predicted equilibrium temperature of ∼852 K. Our analysis also decreases the best-fit abundance of CO2 by almost an order of magnitude. The approach provides a new window to the properties of chromospheres/corona in stars other than our Sun.