bluuebunny/crossref_metadata_2025_split huggingface dataset:
Open-access network science: Investigating phonological similarity networks based on the SUBTLEX-US lexicon
Authors: Alderete John , Mann Sarbjot , Tupper Paul 
Published: February 2025

Abstract
Network science tools are becoming increasingly important to psycholinguistics, but few open-access data sets exist for exploring network properties of even well-studied languages like English. We constructed several phonological similarity networks (neighbors differ in exactly one consonant or vowel phoneme) using words from a lexicon based on the SUBTLEX-US English corpus, distinguishing networks by size and word representation (i.e., lemma vs. word form). The resulting networks are shown to exhibit many familiar characteristics, including small-world properties, broad degree distributions, and robustness to node removal, regardless of network size and word representation. We also validated the SUBTLEX phonological networks by showing that they exhibit contrasts in degree and clustering coefficient comparable to the same contrasts found in prior studies and exhibit familiar trends after extraction of a backbone network of nodes important to network centrality. The data release (https://github.com/aldo-git-bit/phonological-similarity-networks-SUBTLEX) includes 17 adjacency lists that can be further explored using the networkX package in Python, a package of files for building new adjacency lists from scratch, and several scripts that allow users to analyze and extend these results.
The Union Prime Power Order Cayley Graph of Certain Cyclic Groups and their Topological Indices
Authors: Shanmuganathan Hemappriya , Mat Hassim Hazzirah Izzati , Fahd A Alshammari Maryam 
Published: February 2025

Cayley graph is a variation of graphs that focuses on constructing and analyzing graphs using algebraic structures. Meanwhile, topological indices of graphs are numerical values that reflect various aspects of the graphs’ structure. Over the years, many variants of Cayley graphs have been constructed due to the significance of understanding the order of elements within a group’s subset but not on the union of subsets with specific order of elements. In this paper, a new variant of Cayley graph, namely the union prime power order Cayley graph of a group with respect to subset is formed by combining all possible subsets of . In addition, the union prime power order Cayley graph is constructed for cyclic groups of order and , where is a prime, and their generalizations are determined. Moreover, the topological indices, which are the Wiener index, mean distance, first Zagreb index, and second Zagreb index are also computed for these graphs. Existing definitions and theorems of Cayley graphs and topological indices are analyzed to define the new variant of the Cayley graph and establish the general form of its topological indices.
Periodic Variability of the Central Stars of Planetary Nebulae Surveyed through the Zwicky Transient Facility
Authors: Chen Pinjian , Fang Xuan , Chen Xiaodian , Liu Jifeng 
Published: February 2025

Abstract
A consensus has been reached in recent years that binarity plays an important role in the formation and evolution of a significant fraction of planetary nebulae (PNe). Utilizing the archived photometric data from the Zwicky Transient Facility survey, we conducted a comprehensive data mining in search of brightness variations in a large sample of Galactic PNe. This effort led to identification of 39 PNe, whose central stars exhibit periodic variation in light curves. Among these objects, 20 are known binary central stars of PNe, while the remaining 19 are new discoveries. Additionally, we identified 14 PNe with central stars displaying anomalous variation in light curves, as well as eight variables based on the high-cadence photometric data. Among the new discoveries of periodicity, we found compelling evidence of binary systems at the centers of two archetypal quadrupolar PNe. We also report on very peculiar brightness variation observed in the central core of the compact PN NGC 6833. Several PNe in our sample deserve follow-up observations, both high-dispersion spectroscopy and high-precision photometry, to reveal the true nature of their central binarity or even multiplicity.
Deep Rest-UV JWST/NIRSpec Spectroscopy of Early Galaxies: The Demographics of C iv and N-emitters in the Reionization Era
Authors: Topping Michael W. , Stark Daniel P. , Senchyna Peter , Chen Zuyi , Zitrin Adi , Endsley Ryan , Charlot Stéphane , Furtak Lukas J. , Maseda Michael V. , Plat Adele , Smit Renske , Mainali Ramesh , Chevallard Jacopo , Molyneux Stephen , Rigby Jane R. 
Published: February 2025

Abstract
JWST has recently discovered a subset of reionization era galaxies with ionized gas that is metal-poor in oxygen and carbon but heavily enriched in nitrogen. This abundance pattern is almost never seen in lower-redshift galaxies but is commonly observed in globular cluster stars. We have recently demonstrated that this peculiar abundance pattern appears in a compact (≃20 pc) metal-poor galaxy undergoing a strong burst of star formation. This galaxy was originally selected based on strong C iv emission, indicating a hard radiation field rarely seen locally. In this paper, we present JWST/NIRSpec observations of another reionization-era galaxy known to power strong C iv emission, the z = 7.04 gravitationally lensed galaxy A1703-zd6. The emission-line spectrum reveals this is a metal-poor galaxy (

12
+
log
(
O
/
H
)
=
7.47
±
0.19

) dominated by a young stellar population (

1
.

6

−
0.4

+
0.5

Myr) that powers a very hard ionizing spectrum (C iv equivalent width, EW = 19.4 Å, He ii EW = 2.2 Å). The interstellar medium is highly enriched in nitrogen (

log
(
N
/
O
)
=
−
0.6

) with very high electron densities (8–19 × 104 cm−3) and extreme ionization conditions rarely seen at lower redshift. We also find intense CIV emission (EW ≳ 20 Å) in two new z ≳ 6 metal-poor galaxies. To put these results in context, we search for UV line emission in a sample of 737 z ≳ 4 galaxies with NIRSpec spectra, establishing that 40%(30%) of systems with [O iii]+Hβ EW > 2000 Å have N iv] (C iv) detections with EW > 5 Å(> 10 Å). These results suggest high N/O ratios, and hard ionizing sources appear in a brief phase following a burst of star formation in compact high-density stellar complexes.
Asteroseismology with TESS: Emergence of Dipole Mode Suppression from Subgiants?
Authors: Lin 林 Shurui 书睿 , Li 李 Tanda 坦达 , Mao 毛 Shude 淑德 , Fuller Jim 
Published: February 2025

Abstract
Dipole mode suppression is an observed behavior of solar-like oscillations in evolved stars. This study aims to search for depressed dipole modes in giant stars using data from the Transiting Exoplanet Survey Satellite (TESS) and investigate when the suppression starts to emerge. We study a sample of 8651 evolved stars from TESS and find 179 stars with significant dipole mode depression by comparing the oscillation amplitudes of radial and dipole modes. Notably, 11 of them are located near the base of the red giant branch, indicating that mode suppression appears earlier than the point inferred in previous studies with Kepler data. These findings provide new evidence for dipole mode suppression in giant stars, particularly in subgiants.
Stellar Loci. VIII. Photometric Metallicities for 100 Million Stars Based on Synthetic Gaia Colors
Authors: Huang 黄 Bowen 博闻 , Yuan 苑 Haibo 海波 , Xu 徐 Shuai 帅 , Xiao 肖 Kai 凯 , Xiang 向 Maosheng 茂盛 , Huang 黄 Yang 样 , Beers Timothy C. 
Published: February 2025

Abstract
We apply the stellar locus method to synthetic (BP–RP)XPSP and (BP–G)XPSP colors derived from corrected Gaia BP/RP (XP) spectra to obtain precise estimates of metallicity for about 100 million stars in the Milky Way (34 million giants in the color range 0.6 < (BP–RP)0 < 1.75 and 65 million dwarfs in the color range 0.2 < (BP–RP)0 < 1.5). The submillimagnitude precision of the derived synthetic stellar colors enables estimates of metallicity for stars as low as [Fe/H] ∼ −4. Multiple validation tests indicate that the typical metallicity precision is between 0.05 and 0.1 dex for both dwarfs and giants at [Fe/H] = 0, as faint as G ∼ 16, and decreases to 0.15–0.25 dex at [Fe/H] = −2.0. For −4.0 < [Fe/H] < −3.0, the typical metallicity precision decreases to on the order of 0.4–0.5 dex, based on the results from the reference sample. Our achieved precision is comparable to or better than previous efforts using the entire XP spectra and about 3 times better than our previous work based on Gaia EDR3 colors. This opens up new opportunities for investigations of stellar populations, the formation and chemical evolution of the Milky Way, the chemistry of stars and star clusters, and the identification of candidate stars for subsequent high-resolution spectroscopic follow-up. The catalog is publicly available at doi:10.12149/101548.
On the Abiotic Origin of Dimethyl Sulfide: Discovery of Dimethyl Sulfide in the Interstellar Medium
Authors: Sanz-Novo Miguel , Rivilla Víctor M. , Endres Christian P. , Lattanzi Valerio , Jiménez-Serra Izaskun , Colzi Laura , Zeng Shaoshan , Megías Andrés , López-Gallifa Álvaro , Martínez-Henares Antonio , San Andrés David , Tercero Belén , de Vicente Pablo , Martín Sergio , Requena-Torres Miguel A. , Caselli Paola , Martín-Pintado Jesús 
Published: February 2025

Abstract
Following the discovery of dimethyl sulfide (DMS; CH3SCH3) signatures in comet 67P/Churyumov–Gerasimenko, we report the first detection of this organosulfur species in the interstellar medium during the exploration of an ultradeep molecular line survey performed toward the Galactic center molecular cloud G+0.693-0.027 with the Yebes 40 m and IRAM 30 m telescopes. We derive a molecular column density of N = (2.6 ± 0.3) × 1013 cm−2, yielding a fractional abundance relative to H2 of ∼1.9 × 10−10. This implies that DMS is a factor of ∼1.6 times less abundant than its structural isomer CH3CH2SH and ∼30 times less abundant than its O-analog dimethyl ether (CH3OCH3) toward this cloud, in excellent agreement with previous results on various O/S pairs. Furthermore, we find a remarkable resemblance between the relative abundance of DMS/CH3OH in G+0.693-0.027 (∼1.7 × 10−3) and in the comet (∼1.3 × 10−3). Although the chemistry of DMS beyond Earth has yet to be fully disclosed, this discovery provides conclusive observational evidence on its efficient abiotic production in the interstellar medium, casting doubt on using DMS as a reliable biomarker in exoplanet science.
Étude de la couche picturale de la Maestà de Cimabue
Authors: Ravaud Élisabeth , Eveno Myriam , Bellec Jean-Louis , Laval Éric , Clivet Laurence , Salinson Philippe 
Published: February 2025

L’étude scientifique de la Maestà avant et au cours de sa restauration a permis de préciser la palette comme la technique picturale de Cimabue à l’apogée de son art. Elle révèle une continuation de la tradition du xiiie siècle, mais aussi de nouveaux matériaux et procédés qui seront repris dans les années suivantes, en particulier par le jeune Giotto.
Effect of Poverty and Rural Settings on Catastrophic Expenditure in Multi-Drug-Resistant Tuberculosis: An Exploratory Study using Propensity Score Matching
Authors: Sharma Shweta , Thampy Parvathy , Kokane Arun M. , Kumar Umesh , Joshi Ankur 
Published: February 2025

Abstract

Background:
A person having multi-drug-resistant tuberculosis (MDR-TB) may have co-payments and deductibles rendered into the out-of-pocket and catastrophic expenditure. This study explores whether catastrophic expenditure is associated with income and place of residence amongst MDR-TB patients after adjusting covariables through propensity score matching. We further explore the origin, distribution, and dominant components of costs across the four strata created by income and place of residence.

Material and Methods:
This cross-sectional study was conducted among MDR-TB patients registered in DTC Bhopal, MP, India, in calendar year 2017. Information on socio-demographic profile, various costs, and adapted coping strategy was collected through a structured instrument. Total expenditure of 20% or more of household income was considered as catastrophic cutoff. Catastrophic health expenditure (CHE) was regressed on binary income category and place of residence as predictor for CHE after adjusting covariates through cohort balancing.

Results:
For income category, 74 observations (33 in non-CHE category with 41 CHE category participants) matched with each other. While for place of residence, 98 observations (40 in non-CHE category with 58 from CHE category) matched with each other. Being in low-income group had an incremental odds ratio of 8.57 (95% CI 2.73–33.77) for CHE while odds of incurring CHE were 10 times higher (OR = 10.51, 95% CI 2.24–128.37) in rural area. Nutritional supplements and ancillary medication shared the major proportion of CHE costs in all the strata.

Conclusions:
Income and geographical disparity in MDR may increase probability of catastrophic expenditure in MDR-TB.
Surveillance of Ventilator-associated Events in a Tertiary Care Teaching Hospital
Authors: Naik Dhara , Trivedi Niyati , Dosi Rupal 
Published: February 2025

Abstract

Background:
Ventilator-associated events (VAE) are associated with prolonged duration of hospital stays, increased health care costs, and overall high morbidity and mortality. As the clinical profile of the patient differs based on the health care settings, for optimum management of such cases, adequate surveillance studies are necessary to assess the burden of disease, the common risk factors associated, and the microbiology profile of such cases in the specific geological areas and healthcare facilities.

Materials and Methods:
In the present prospective observational study, the patients undergoing mechanical ventilation (MV) for >48 h were followed up daily and their clinical progress was recorded. They were classified as per the Centers for Disease Control guidance document for surveillance of VAE. The Fisher’s exact test was used to find the association of various dichotomous variables. An unpaired t-test was used to test the association between the means for continuous variables. Univariate and multivariate (enter) logistic regression analysis was used to find the association between various independent variables and outcome of treatment.

Results:
The incidence density of possible VAP (PVAP) in the current study was 54.61 per 1000 ventilator days. The age of the patient and duration from admission to MV were the factors significantly associated with development of PVAP. Moreover, PVAP significantly prolonged the duration of hospitalization and total days of antimicrobial therapy compared to the non-VAE group. The total days from admission to MV was the independent variable found to have a significant association with high mortality in patients with PVAP.

Conclusion:
The study identifies key areas needing immediate attention including, the necessity to strengthen the resources to keep up with the high patient load and an urgent necessity of strengthening the infection prevention and control practices as well as antimicrobial stewardship practices in the hospitals.
Predictive Modelling and Analysis of Petroleum Prices (PMS, AGO, DPK) Using the Non-Linear Logistic Approach
Authors: Chukwu Chinemerem Jerry , Adam Lawal Kunle , Ebubechi Obasi Daniel , Chibuzo Akoma Ugochukwu , Oseiwe Ajadalu Samson , Chidube Ogamba , Oluwasijibomi Olaremi Samuel , Joseph Sunday Abayomi , Ali Mohammed Sherif , Chukwudi Chukwuma Richard , Okechukwu Eze Simeon , Abubakar Saifullahi Abdullahi 
Published: February 2025

The study investigated the use of mathematical equations to predict and analyze the unit pump price of petroleum products in Nigeria. A logistic model was developed and solved into its analytic solution. Fuel pump prices from all over Nigeria for PMS, AGO, and DPK were obtained from the statistical facts sheet of the Nigerian Upstream Petroleum Regulatory Commission (NUPRC) and plotted into a scatter diagram. The analytic solution of the model developed was superimposed on the scatter diagram to see its fitness. The model fitted into the scatter diagram excellently, with R² values reaching 0.996 for PMS, 0.9915 for AGO, and 0.9984 for DPK, confirming its robustness in predicting future prices and the meandering of the profile among the points of the scatter diagram. The model showed that the pump price phenomenon was model-able and predictive and revealed a projected saturation point for AGO prices at NGN 2062.25 by 2058, which indicated a gradual stabilization of the market. The Nigerian unit pump prices of petrol, diesel, and kerosene from 1992 to 2016 obey the model equation up to a degree of accuracy. The logistic model employed effectively captured the non-linear behaviour of petroleum prices and offered a more accurate representation compared to traditional linear models. However, the rate of price increases was projected to decline over time, suggesting a potential mitigation of the burden of rising fuel costs in the long run. The study's findings have implications for policymakers, consumers, and industry stakeholders and provide valuable insights for informed decision-making.

Received: 11 September 2024 | Revised: 20 December 2024 | Accepted: 21 January 2025

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
Data available on request from the corresponding author upon reasonable request.

Author Contribution Statement
Chinemerem Jerry Chukwu: Conceptualization, Writing - original draft, Supervision. Lawal Kunle Adam: Conceptualization, Writing - original draft. Obasi Daniel Ebubechi: Methodology, Investigation, Writing - review & editing. Akoma Ugochukwu Chibuzo: Methodology, Investigation, Writing - review & editing. Ajadalu Samson Oseiwe: Software, Visualization. Ogamba Chidube: Software, Visualization. Olaremi Samuel Oluwasijibomi: Validation, Project administration. Sunday Abayomi Joseph: Validation, Supervision, Project administration. Mohammed Sherif Ali: Formal analysis, Data curation. Chukwuma Richard Chukwudi: Formal analysis, Data curation. Eze Simeon Okechukwu: Investigation, Resources. Saifullahi Abdullahi Abubakar: Investigation, Resources.
Recent Progress in Visible-Light Photocatalysts Materials: Synthesis, Applications, Challenges, and Prospects
Authors: Li Xiaoyang , Lin Sihan , Hu Rongrong , Liang Pan , Wu Qiaoyun , Yang Bobo , Lin Shengquan , Xu Quanlong , Mei Junnan , Zou Jun 
Published: February 2025

Abstract: Photocatalysis materials have gained significant attention as a powerful tool for environmental remediation and green energy generation, due to their remarkable ability to convert solar energy into chemical energy efficiently. Additionally, photocatalysis also plays a significant role in the medical realm, facilitating advancements in drug synthesis. However, the wavelengths of photocatalysis light normally focus on UV light, which is usually generated by higher energy. In recent years, the spotlight has shifted towards visible-light photocatalysis as a promising green and sustainable alternative due to the increasing concerns about environmental challenges and energy crises. This review focuses on the recent advancements in visible-light photocatalysis materials and emphasizes the diverse types of photocatalytic materials and their impactful applications in environmental remediation, organic synthesis chemistry, and energy conversion. Furthermore, the prevailing challenges and potential solutions in visible-light photocatalysis materials are also summarized to provide valuable insights for the further development and optimization of photocatalysis.

Received: 25 April 2024 | Revised: 24 July 2024 | Accepted: 10 January 2025

Conflicts of Interest
The authors declare that they have no conflicts of interest to this work.

Data Availability Statement
Data are available from the corresponding author upon reasonable request.

Author Contribution Statement
Xiaoyang Li: Investigation, Resources, Writing – original draft. Sihan Lin: Investigation. Rongrong Hu: Conceptualization, Investigation, Resources, Writing – review & editing, Supervision, Funding acquisition. Pan Liang: Investigation. Qiaoyun Wu: Investigation, Resources. Bobo Yang: Investigation. Shengquan Lin: Investigation. Quanlong Xu: Investigation. Junnan Mei: Investigation. Jun Zou: Conceptualization, Investigation, Supervision, Funding acquisition.
Elucidating the role of intermetallics in metastable pitting of 7068 alloy using electrochemical noise
Authors: Kumar Ankur , Chaudhari Gajanan P. 
Published: February 2025

Abstract
The role of intermetallic precipitates (IMPs) of Al2MgCu, Al7Cu2Fe, and MgZn2 on metastable pitting of high-zinc 7068 aluminum alloy is studied by using electrochemical noise. Experimental results and microstructural constituents characterized by using scanning electron microscopy analysis are compared. Findings reveal a strong correlation between the MgZn2 IMPs and metastable pitting events. However, the shape of the current transient events depends on the electrode potential and passive film protective ability. Besides, MgZn2 IMPs dominantly enhance the complex electrochemical activities such as micro-galvanic coupling and reactivation or repassivation of pits near the breakdown potential. The cathodic current transients depend on the electrode potential, the protective ability of the passive layer, and presence of nobler Al7Cu2Fe IMPs.
KOMUNITAS, BUKU, DAN MASA LALU: PROSES KREATIF PENGARANG INDONESIA TIMUR FINALIS LIMA BESAR KUSALA SASTRA KHATULISTIWA 2019
Authors: Hardi Rahmat Sulhan , Suyasa Made 
Published: February 2025

COMMUNITY, BOOKS, AND THE PAST: THE CREATIVE PROCESS OF EASTERN INDONESIAN AUTHORS TOP FIVE FINALISTS OF THE KUSALA SASTRA KHATULISTIWA 2019AbstractThis research aims to find out Arianto Adipurwanto's creative process in writing Bugiali which led him to become a finalist in the top five of the 2019 Equatorial Literature Collection. This research is a qualitative descriptive research. The data source is in the form of interviews with resource persons and a collection of Bugiali short stories. Data collection was carried out by interview techniques. Data analysis uses qualitative descriptive which consists of selecting, reducing, presenting, and drawing conclusions. The results of the study show that the birth of short stories in Bugiali cannot be separated from the past story, reading materials, and the role of the Komunitas Akarpohon Mataram and the figure of Kiki Sulistyo who became Adipurwanto's mentor in helping him write. Thus, a supportive environment and mentors help novice writers in developing their competence in writing literary works.Keywords: creative process, writing, short stories, BugialiKOMUNITAS, BUKU, DAN MASA LALU: PROSES KREATIF PENGARANG INDONESIA TIMUR FINALIS LIMA BESAR KUSALA SASTRA KHATULISTIWA 2019AbstrakPenelitian ini bertujuan untuk mengetahui proses kreatif Arianto Adipurwanto dalam menulis Bugiali yang mengantarakannya menjadi finalis lima besar Kusala Sastra Khatulistiwa 2019. Penelitian ini merupakan penelitian deskriptif kualitatif. Sumber data berupa wawancara dengan narasumber dan kumpulan cerpen Bugiali. Pengumpulan data dilakukan dengan teknik wawancara. Analisis data menggunakan deskriptif kualitatif yang terdiri atas memilih, mereduksi, menyajikan, dan menarik kesimpulan. Hasil penelitian menunjukkan lahirnya cerpen-cerpen dalam Bugiali tidak dapat dipisahkan dari kisah masa lalu, bahan bacaan, dan peran Komunitas Akarpohon Mataram dan sosok Kiki Sulistyo yang menjadi mentor Adipurwanto dalam membantunya menulis. Dengan demikian, lingkungan dan mentor yang mendukung membantu penulis pemula dalam mengembangkan kompetensinya dalam menulis karya sastra.Kata kunci: proses kreatif, menulis, cerita pendek, Bugiali