bluuebunny/crossref_metadata_2025_split huggingface dataset:
SN 2019odp – A massive oxygen-rich Type Ib supernova
Authors: Schweyer T. , Sollerman J. , Jerkstrand A. , Ergon M. , Chen T.-W. , Omand C. M. B. , Schulze S. , Coughlin M. W. , Andreoni I. , Fremling C. , Rau A. , Sharma Y. , Strotjohann N. L. , Yan L. , Graham M. J. , Kasliwal M. M. , Laher R. R. , Purdum J. , Rosnet P. , Rusholme B. , Smith R. 
Published: November 2024

Aims. Stripped envelope (SE) supernovae are explosions of stars that have somehow lost most of their outer envelopes. We present the discovery and analyse the observations of the Type Ib supernova 2019odp (a.k.a. ZTF19abqwtfu) covering epochs within days of the explosion to late nebular phases at 360 d post-explosion.
Methods. Our observations include an extensive set of photometric observations and low- to medium-resolution spectroscopic observations, both covering the complete observable time range. We analysed the data using analytic models for the recombination cooling emission of the early excess emission and the diffusion of the peak light curve. We expanded on existing methods to derive oxygen mass estimates from nebular phase spectroscopy, and briefly discuss progenitor models based on this analysis.
Results. Our spectroscopic observations confirm the presence of He in the supernova ejecta and we thus (re)classify SN 2019odp as a Type Ib supernova. From the pseudo-bolometric light curve, we estimate a high ejecta mass of Mej ∼ 4 − 7 M⊙. The high ejecta mass, large nebular [O I]/[Ca II] line flux ratio (1.2 − 1.9), and an oxygen mass above ⪆0.5 M⊙ point towards a progenitor with a pre-explosion mass higher than 18 M⊙. Whereas a majority of analysed SE supernovae in the literature seem to have low ejecta masses, indicating stripping in a binary star system, SN 2019odp instead has parameters that are consistent with an origin in a single massive star. The compact nature of the progenitor (≲10 R⊙) suggests that a Wolf-Rayet star is the progenitor.
Spectra of solar shallow-water waves from bright point observations
Authors: Raphaldini B. , Dikpati M. , McIntosh S. , Teruya A. S. W. 
Published: November 2024

Context. Rossby waves, large-scale meandering patterns drifting in longitude, detected in the Sun, were recently shown to a play a crucial role in understanding “seasons” of space weather. Unlike Earth’s purely classical atmospheric Rossby waves, the solar counterparts are strongly magnetized and most likely originate in the tachocline. Because of their deeper origin, detecting these magnetized Rossby waves is a challenging task that relies on careful observations of long-lived longitudinally drifting magnetic patterns at the surface and above.
Aims. Here, we have utilized 3 years of global, synchronous observations of coronal bright point densities to obtain empirical signatures of dispersion relations that can be attributed to the simulated waves in the tachocline. By tracking the bright point densities at selected latitudes, we computed their wave-number × frequency spectra.
Methods. Wave-number × frequency spectra were computed utilizing the Wheeler-Kiladis method. This method has been extensively used in the identification of equatorial waves in Earth’s atmosphere by highlighting spectral peaks in the wave-number × frequency space.
Results. Our results are compatible with the predictions of magneto-Rossby waves with typical periods of several months and inertio-gravity waves with typical periods of a few weeks, depending on the background magnetic field’s strength and stratification at the convection zone base. Our analysis suggests that magnetized Rossby waves originate from the tachocline toroidal field of ≲15 kG. Global observations of bright points over extended periods will allow us to better constrain the stratification and magnetic field strength in the tachocline.
New stellar age estimates using SPInS based on Gaia DR3 photometry and LAMOST DR8 abundances
Authors: Casamiquela L. , Reese D. R. , Lebreton Y. , Haywood M. , Di Matteo P. , Anders F. , Jash R. , Katz D. , Cerqui V. , Boin T. , Kordopatis G. 
Published: November 2024

Context. Reliable stellar age estimates are fundamental for testing several problems in modern astrophysics, in particular since they set the timescales of Galactic dynamical and chemical evolution.
Aims. In this study, we determine ages using only Gaia DR3 photometry and parallaxes, in combination with interstellar extinction maps, and spectroscopic metallicities and α abundances from the latest data release (DR8) of the LAMOST survey. In contrast with previous age estimates, we do not use spectroscopic effective temperatures or surface gravities, and thus we rely on the excellent precision and accuracy of the Gaia photometry.
Methods. We use a new version of the publicly available SPInS code with improved features, including the on-the-fly computation of the autocorrelation time and the automatic convergence evaluation.
Results. We determine reliable age estimates for 35 096 and 243 768 sub-giant and main-sequence turn-off stars in the LAMOST DR8 low- and medium-resolution surveys with typical uncertainties smaller than 10%. In addition, we successfully test our method on more than 4000 stars of 14 well-studied open and globular star clusters covering a wide range of ages, confirming the reliability of our age and uncertainty estimates.
Comparison of whole-body 18F-FDG-PET/CT with 18F-FDG-PET/CT limited to skull base to upper abdomen for primary staging of lung cancer – a retrospective explorative analysis
Authors: Schulz Lukas , Funk Georg-Christian , Kirchbacher Klaus , Egger Elena , Müser Nino , Mirzaei Siroos 
Published: November 2024

AbstractThe gold standard for ruling out distant metastases as part of primary staging in lung cancer is whole-body 18F-FDG-PET/CT, but this method is resource-intensive. Recent evidence suggests that examining only the thorax and upper abdomen may be sufficient 1
2
3. If a limited 18F-FDG-PET/CT approach proves effective for proper staging, it could lead to quicker examinations and reduced radiation exposure. This study aimed to determine whether limited 18F-FDG-PET/CT is adequate for the primary staging of lung cancer.In this study, a retrospective analysis of 161 patients (87 men, 74 women; age range 31–88 y) with recent or suspected lung cancer who had undergone a whole-body 18F-FDG-PET/CT examination for primary staging at our clinic between 2018 and 2022 was conducted. None of these patients showed evidence of extrathoracic metastases before the 18F-FDG-PET/CT examination. The images were divided into three regions: “head-neck” (HN), “thorax-upper abdomen” (TUA), and “lower abdomen-hip” (LAH). TNM staging based on the HN plus TUA region was compared with TNM staging based on the whole body.Among the 161 subjects, 7 (4%) showed malignancy-suspect lesions in HN, 110 (68%) in TUA and 7 (4%) had suspected distant metastases in LAH. The TNM staging based on HN plus TUA corresponded to TNM staging based on the whole body in 161 (100%) examinations. This finding aligns with similar results in previous literature.
18F-FDG-PET/CT limited to HN and TUA yielded accurate staging in all cases. Adopting this method could facilitate the examination and correct staging of more individuals, reducing exam waiting times and physician reporting time and minimising radiation exposure.
Endoscopic ultrasound-guided gastroenterostomy for the treatment of gastric outlet obstruction secondary to acute pancreatitis
Authors: Wannhoff Andreas , Canakis Andrew , Sharaiha Reem Z. , Fayyaz Farimah , Schlag Christoph , Sharma Neil , Elsayed Ismaeil , Khashab Mouen A. , Baron Todd H. , Caca Karel , Irani Shayan S. 
Published: November 2024

Abstract
Background Endoscopic ultrasound-guided gastroenterostomy (EUS-GE) is a minimally invasive technique for treating gastric outlet obstruction (GOO). The aim of this study was to assess the outcomes of EUS-GE in managing benign GOO caused by duodenal stenosis in patients with acute pancreatitis.
Methods This international retrospective study analyzed patients treated with EUS-GE for GOO caused by acute pancreatitis until December 2023, evaluating technical and clinical success, adverse events, and reintervention.
Results 39 patients (median age 55 years, 15 women) were included. There was a 92.3% technical success rate, with only three patients unable to undergo EUS-GE owing to a long distance between the stomach and small bowel or an inadequate window for puncture. Clinical success was observed in 34 patients (87.2%). The median Gastric Outlet Obstruction Scoring System (GOOSS) improved from 0 before EUS-GE to 2 afterward (P <0.001). Follow-up (≥3 months) was available in 25 patients. During a median follow-up of 23 months, four patients required reintervention. It was possible to remove the lumen-apposing metal stent in 18 patients. The only adverse event was a gastrocolic fistula detected incidentally after 3 months.
Conclusion EUS-GE is an effective and safe method for managing benign GOO in the setting of acute pancreatitis.
Self-Defense Training for Enhancing Self-Esteem: Sexual Harassment Preventive Strategy—A Pilot Study among High School Girls of Coastal Region of Karnataka, India
Authors: Nithyashree B. V. , Leena K. C. 
Published: November 2024

Abstract
Background Sexual harassment is a major public issue among teens. As a result, encouraging teenage girls to claim their rights and providing an atmosphere free of prejudice and violence is vital. Promoting high self-esteem may minimize the probability of teenagers experiencing the negative repercussions of harassment.
Objective This study sought to explore the potential of self-defense training to enhance self-esteem among high school girls.
Methods A quantitative research approach with quasi-experimental design was adopted. Three government high schools from seven clusters were randomly selected from Mangalore South Zone and 38 high school girls were recruited (control group =18 from two schools and intervention group =20 from one school). Data were collected using sociodemographic proforma and Rosenberg self-esteem scale. After pretest, eight sessions of self-defense training were conducted and a posttest was administered with an interval of 7 days, 1 month, and 3 months after the intervention. Ethical approval for the study was obtained.
Results A significant difference was found between the self-esteem scores of the intervention and control groups (p < 0.001).
Conclusion This study revealed that the self-defense training was effective in enhancing self-esteem. Enhancement of self-esteem and awareness of self-protection is key to remaining free from violence, assault, and harassment.
Illegal drugs and socio-economic changes in a new pivotal region: a court judgements perspective
Authors: Bussu Anna , Dettori Domenica Giovanna , Ladu Maria Gabriela , Pulina Manuela 
Published: November 2024

AbstractThis study adopts an integrative approach, combining quantitative and quantitative analysis based on Court judgements to uncover trends, dynamics and projections in the illegal drug trade. A quantitative analysis offers insight into drug specialisations. A Computer-Assisted Qualitative Document Analysis Software unveils socio-economic changes in a newly pivotal Italian region for international drug trade. The analysis highlights the intricate complexities of this underground activity and assesses the role of organised crime groups, shifts in criminal activities, and the emergence of complementary profitable crimes. The study offers a novel understanding of the multi-faceted nature of the drug trade, its impact on society, and its connection with other types of crimes, empowering policymakers to make evidence-based decisions on prevention and treatment policies.
All-fiber supercontinuum absorption spectroscopy for mid-infrared gas sensing
Authors: Bizot Rémi , Tiliouine Idris , Désévédavy Frédéric , Gadret Grégory , Strutynski Clément , Serrano Esteban , Mathey Pierre , Kibler Bertrand , Février Sébastien , Smektala Frédéric 
Published: November 2024

The development of compact fiber-based light sources emitting over a wide wavelength range in the mid-infrared and their application to the detection of greenhouse gases and volatile organic compounds still remain of critical interest. In the present work, we make use of several dedicated infrared fibers for implementing a mid-infrared optical device pumped by a thulium doped-fiber laser around 1.965 μm that simultaneously enables a first nonlinear stage of frequency conversion and supercontinuum generation and a second linear stage of gas absorption spectroscopy. As a proof-of-principle, we carry out mid-infrared supercontinuum absorption spectroscopy of methane around 7.7 μm by means of a hollow-core fiber-based gas cell combined to a commercial Fourier-transform infrared spectrometer. Our all-fiber configuration operating in the femtosecond regime at megahertz repetition rate allows the detection of methane concentrations as low as 20 ppm.
A multiple linear regression model for predicting characteristic frequencies in biological tissues
Authors: Apon Imtiaz Ahamed , Hasan Md. Ratul , Zafur Abu , Wahid Md Ferdoush , Haque Mohammad Salman 
Published: November 2024

This research introduces a novel mathematical methodology for identifying the distinctive frequency of human tissue. The model has been formulated using bioelectrical impedance analysis. The developed model can be utilized to detect a range of ailments, including those associated with the cardiovascular system, cancer, and dengue fever. A total of 3813 data points, including both males and females, were utilized. Data from a sample of both male and female individuals, including their age, height, bioelectrical impedance at frequencies ranging from 5 kHz to 1 MHz (for the Fc model), body mass index, and an impedance index of 2000, were utilized to create mathematical models. To validate the suggested models, data from a total of 1813 individuals (both male and female) were utilized. The statistical analysis of the proposed model (Fc) reveals a significant correlation (Pearson coefficient = 0.997, p &lt; 0.001) between both male and female subjects, with a positive covariance. The model’s 95% limits of agreement, ranging from −1.28 to 1.98 L for both males and females, are sufficiently minimal. All errors fall within this limit. In addition, the suggested model has undergone validation in terms of various types of error analysis, such as bias and root mean square (RMSE). The bias and RMSE values, which are indicators of error, reach a maximum of 0.32 and 0.38 L (for both male and female), respectively. These values are within the predicted range and can be considered minimal.
Factors influencing the variability in performance of cattle grazing tropical pasture
Authors: Charmley E. , Bishop-Hurley G. J. , McSweeney C. S. , Takeuchi R. , Martinez-Fernandez G. , Denman S. 
Published: November 2024

Context Whereas it is known that there is variation in liveweight gain (described as performance in this paper) within a group of grazing cattle, the causes of this variation are not well understood. Aim A 2-year grazing study in northern Queensland was conducted to understand the relative influence of diet selection, grazing behaviour and rumen fermentation on variation in performance of growing cattle. Methods Eighty-nine Bos taurus × B. indicus (~6 months old) growing steers were grazed as a group on mixed tropical pasture for 23 months. Pasture was characterised for biomass, species and nutrient composition. Cattle were ranked according to overall liveweight (LW) gain and the top (high performance, HP) 20 and bottom (low performance, LP) 20 head were compared for diet composition, rumen fermentation and grazing behaviours. Results Pasture biomass, and nutritive value of pasture and diet varied between seasons and years of study. The HP cattle achieved overall LW gains 20% greater than those of the LP cattle mainly due to higher rates of gain in the wet season. However, the nutritive value and rumen fermentation characteristics were similar for both LP and HP cattle, although there was evidence that crude protein and digestibility were modestly higher in diets of HP cattle, especially in the first wet season. Activity, measured as distance travelled, declined as pasture biomass declined, and cattle appeared to favour pasture with higher legume content. Conclusion It is concluded that divergence in performance of cattle on tropical pasture could not be fully explained by measurements taken in this study. Diet selection for plant components with improved nutritive value probably played a small role. Differences in initial LW between the LP and HP groups may have been a contributory factor. Implications Despite comprehensive measurements of factors that influence efficiency and performance on pasture, we were unable to identify definitive causes. Genetic variation in feed intake or efficiency of digestion needs to be investigated.
A rapid numerical method for nonlinear generalized time-fractional kawahara equations via domination polynomials of complete graph
Authors: Nirmala A N , Kumbinarasaiah S 
Published: November 2024

Abstract
The key objective of this study is to examine the nonlinear Time-fractional generalized Kawahara equation N-TF-GKE, a significant nonlinear equation that appears in a variety of physical domains, including ion-acoustic waves in plasmas, shallow water waves, and nonlinear acoustics. This Equation exhibits complex dynamic properties, most notably the appearance of shock waves, solitary waves, and chaotic solutions. We use a graph theoretic polynomial approach to obtain numerical solutions of the N-TF-GKE. We present the dominance polynomials of complete graphs (DPC), a new class of graph polynomials, to develop an efficient operational integration matrix to approximate the N-TF-GKE. The N-TF-GKE turns into a collection of nonlinear algebraic equations with the standard collocation points. We acquire the numerical solutions for the Domination polynomial using Newton's approach. We validate the efficiency and robustness of our method, the domination polynomial collocation method (

D
C
M

), with a set of numerical experiments and comparative analyses.
cosmocnc: A fast, flexible, and accurate framework for galaxy cluster number count likelihood computation
Authors: Zubeldia Íñigo , Bolliet Boris 
Published: November 2024

Abstract
We introduce cosmocnc, a new framework for computing the number count likelihood
of galaxy cluster catalogues in a fast, flexible and accurate way. cosmocnc offers three
types of likelihoods: an unbinned, a binned, and an extreme value likelihood. It also supports the
addition of stacked cluster data, which is modelled consistently with the cluster catalogue. The
unbinned likelihood, which is the main focus of the framework, can take an arbitrary number of
mass observables as input and deal with several complexities in the data, such as variations in
the properties of the cluster observable across the survey footprint, the possibility of different
clusters having measurements for different combinations of mass observables, redshift measurement
uncertainties, and the presence on unconfirmed detections in the catalogue. If there are more than
one mass observables, the unbinned likelihood is computed with a novel approach, the backward
convolutional approach. After introducing the framework in detail, we demonstrate its application
with synthetic Simons-Observatory-like catalogues, finding excellent agreement between their
properties and cosmocnc's predictions and obtaining constraints on cosmological and
scaling relation parameters featuring negligible biases. A Python implementation of the
cosmocnc framework is publicly available at
https://github.com/inigozubeldia/cosmocnc.
Rotational properties and blocking effects in N = 152 isotones 254No, 255Lr, and 256Rf*
Authors: Zhang 章 Jun 骏 , Zhang 张 Hai-Qian 海黔 , He 贺 Xiao-Tao 晓涛 
Published: November 2024

Abstract
The ground-state bands in the

isotones 254No, 255Lr, and 256Rf are investigated using the cranked shell model (CSM), with pairing correlations treated via the particle-number-conserving (PNC) method. The experimentally kinematic moments of inertia are reproduced well by the PNC-CSM calculations, and the contributions to

from neutrons exhibit remarkable similarities. Compared to 254No, the observed identity of

in 256Rf is a result of the negligible contribution to

from the two additional protons partially occupying the

,

, and

orbitals. The increase in

observed in the odd-A nucleus 255Lr, compared to those of the neighboring even-even isotones 254No and 256Rf, is attributed to the contribution of the proton

owing to the blocking of the nucleon on the proton

orbital. Compared to the case of the heavier isotones 255Lr and 256Rf, the different behavior of the

value above

MeV in 254No is predicted to be due to the level

crossing

.
Two-zero textures for Dirac neutrinos*
Authors: Lenis Yessica , Martinez-Ramirez R. , Peinado Eduardo , Ponce William A. 
Published: November 2024

Abstract
We review the two-zero mass matrix textures approach for Dirac neutrinos with the most recent global fit in the oscillation parameters. We found that three of the 15 possible textures are compatible with current experimental data, while the remaining two-zero textures were ruled out. Two textures are consistent with the normal hierarchy of neutrino masses and are CP-conserving, while the other is compatible with both mass orderings and allows for CP violation. We also present the correlations between the oscillation parameters for the allowed two-zero textures.
A Saturation Correction Method Based on Static and Dynamic Parameters
Authors: Xiao-jiao Qiu , Fan-xi Zhao , Tian-yu Deng , An-pei Sun 
Published: November 2024

Abstract
The saturation analysis date of sealed coring wells can provide the most direct quantitative data for studying remaining oil distribution. However, the oil/water saturation values measured in laboratory test usually deviate form the true values of underground conditions due to multiple factors, and they must be corrected for exact data. Most existing calibration methods consider the changes in pressure and pore conditions during the coring process, ignoring the differences in the oil/water saturation values caused by lithology and electrical properties. In this paper, well J2-6-A145 is selected as the study object. Firstly, the lithology and oil water loss rate are determined as the main influencing factors of oil water saturation by using the Analytic Hierarchy Process. Then a classification statistical correction chart based on lithology and oil-water loss rate is established in sequence, with correlation coefficients ranging from 0.92 to 0.97. Finally, based on the Electrical Property Water Content Relationship Chart of mining production statistics, considered the differences in oil water volatilization under different content levels. The oil-water saturation under different Oiliness is corrected by combining production dynamics chart and permeability curve. A saturation correction method based on statistical regression is obtained by considering multiple factors such as lithology, oil-water loss rate, oiliness, permeability and production dynamics. This method improves correlation after segmented regression, better reflects the oil content of the formation by considering dynamic factors, and provides an accurate data foundation for understanding and evaluating the distribution pattern of remaining oil.