bluuebunny/crossref_metadata_2025_split huggingface dataset:
Link Between Ferritin, Vitamin D, Performance, and Eating Attitudes
in Female Athletes
Authors: Tsukahara Yuka , Torii Suguru , Taniguchi Yukiko , Kusakabe Torao , Murakami Hideki , Yamasawa Fumihiro , Akama Takao 
Published: September 2024

ABSTRACTIron and vitamin D deficiencies can affect athletes’ health and performance.
However, the epidemiology and associated risk factors remain unclear.
Forty-three elite female athletics athletes (20.2±1.9 years) were included. A
survey regarding the training schedule and Eating Attitudes Test-26, body
composition, bone mineral density, and serum 25-hydroxyvitamin D (25(OH)D) and
ferritin levels were assessed. Mean serum 25(OH)D and ferritin levels were
25.2±5.5 ng/mL and 29.0±13.2 ng/mL, respectively, and 83.7% and 41.9% of
athletes had vitamin D and ferritin insufficiency, respectively. Serum 25(OH)D
level was negatively correlated with the number of rest days per week
(Coefficient,−6.19; 95% confidence interval [CI],−9.82–−2.57; p=0.002), and
serum ferritin level was negatively correlated with body mass index
(Coefficient,−3.87; 95% CI,−7.57–−0.16; p=0.041). Performance levels were
positively correlated with serum vitamin D levels (Coefficients, 7.25; 95% CI,
0.25–14.25; p=0.043) and negatively correlated with EAT-26 scores
(Coefficient,−7.30; 95% CI,−12.61–−1.98; p=0.009) and body fat percentage
(Coefficient,−13.26; 95% CI,−24.66–−1.86; p=0.025). Vitamin D and ferritin
insufficiencies are prevalent among Japanese female athletics athletes. Serum
vitamin D level was related to performance level.
Eastern pygmy possum (Cercartetus nanus) populations persist in Central Coast forests after the Black Summer bushfires
Authors: Chew Dylan J. I. , Law Brad , Leo Viyanna , Southwell Darren M. , Anson Jennifer R. , Hayward Matt W. 
Published: September 2024

The 2019–2020 Black Summer bushfires are an example of Australia’s climate-induced, changing fire regimes, where flora and fauna suffer both direct and indirect impacts as the result of large fires. The eastern pygmy possum (Cercartetus nanus) is a species that may be affected and, although its general ecology is well understood, there is limited knowledge of its response to wildfire. Using clusters of nest boxes across two state forests on the New South Wales Central Coast, detection histories were created from 2017 to 2023. Estimates of occupancy, detection and extinction were produced, where the top ranked model included Fire severity as a covariate of extinction. Extinction probability was highest in unburnt areas, 0.55 (95% CI = 0.13–0.82) and lowest in moderate fire severity areas, 0.15 (95% CI = 0.003–0.52), although all estimates were highly uncertain. Detection probability was 0.35 per cluster visit (95% CI = 0.26–0.45) and occupancy probability was 0.77 (95% CI = 0.39–0.98), indicating a high probability of occupancy at sites affected by fire. This suggests that eastern pygmy possums may benefit from post-fire resources, such as flowering shrubs, as well as their flexible den selection, providing a niche that other arboreal animals may be unable to exploit so soon post fire.
Examining longitudinal changes in citation practices
Authors: Liu Yingying , Qi Huilei 
Published: September 2024

Abstract
While previous research has revealed the form and function features of citations across diverse disciplines, writer groups of varying expertise, and academic genres, limited attention has been given to the developmental trajectories in citation practices among novice academic writers. To address this issue, we conducted a corpus-based, discipline-specific analysis of the citation practices of L2 English novice academic writers over time. Using a multi-perspective analytical approach, we examined citation types and functions, along with reporting verbs and reporting structures in 39 linguistics course papers written by 13 L2 English undergraduate students across three semesters. Overall, we observed an increase in citation density, with more diverse citation forms and functions, as well as an expanding usage of reporting verbs and structures. Our results shed light on the developmental trajectory of citation practices and the persistent challenges for novice academic writers. Implications for English for Academic Purposes pedagogy are discussed.
Creencias y actitudes de estudiantes universitarios barceloneses hacia la variedad centro-septentrional del español
Authors: Forment Fernández María del Mar , Illamola Cristina 
Published: September 2024

Abstracta
El objetivo de este artículo es exponer los resultados de la aplicación de la encuesta para medir las creencias y actitudes hacia las variedades cultas del español del proyecto PRECAVES XXI a estudiantes universitarios barceloneses de los grados impartidos en la Facultad de Filología y Comunicación de la Universidad de Barcelona. El estudio se centra en el grado de reconocimiento de las variedades cultas del español por parte de los informantes y en el análisis de las percepciones y valoraciones de estos informantes hacia la variedad centro-septentrional. La metodología seguida en la investigación no había sido aplicada con anterioridad a hablantes nacidos en Cataluña, razón por la cual los resultados del estudio aportarán datos novedosos. Además, el análisis que se plantea es pionero en la consideración de la lengua inicial del informante como factor explicativo de sus creencias hacia las variedades cultas de la lengua española y más específicamente hacia la variedad propia, es decir, la variedad centro-septentrional.
Calculations of positron scattering from F, F2, HF, and various fluorocarbons
Authors: Mori N A , Umer H , Scarlett L H , Bray I , Fursa D V 
Published: September 2024

Abstract
Single center convergent close-coupling calculations have been completed for positron scattering from atomic fluorine. Total, electron-loss, positronium-formation, direct ionization, momentum transfer, elastic, bound-state excitation, and stopping power cross sections have been determined for energies between threshold and 5000 eV. Past calculations for this scattering system exist only for elastic and momentum-transfer cross sections. For high energies, good agreement is found between current and past results. At low energies, however, large differences are found between the current calculations and previous results. The atomic fluorine results are then used in a modified independent atom approach to calculate cross sections for positron scattering on F2, HF, CF4, C2F6, C3F6, C3F8, and C6F6. The current molecular results are typically higher than previous positron experiments across the calculated energy range, however, these experiments were not corrected for the forward angle scattering effect and likely underestimate the true result. Good agreement is found between the current positron results and previous electron experiments and calculations at high energies.
Usefulness and limitations of various detector systems for estimation of 131I thyroid activity following an RN event
Authors: Hjellström Martin , Westerbergh Frida , Forssell-Aronsson Eva , Isaksson Mats 
Published: September 2024

Abstract
Following a radiological or nuclear (RN) event, rapid measurement of 131I in members of the public is of utmost importance, and much equipment is needed for a high throughput. In this study, three gamma cameras (GCs), two thyroid uptake meters (TUMs) and one whole-body counter (WBC) were calibrated for activity measurements of 131I in the thyroid. Minimum detectable activity was derived for the GCs, the TUMs and the WBC giving that a committed effective dose (CED) in the interval 2.0–85 μSv, 13–700 μSv and 0.52–6.4 μSv, and thyroid absorbed doses in the interval 0.075–2.1 mGy, 0.48–17 mGy, and 0.020–0.15 mGy, respectively, can be assessed for children, adolescents, and adults. These numbers are based on 10 min measurement, performed at 1, 3 and 7 d after intake, and the CED includes intake by ingestion and inhalation of aerosols Type F, with an activity median aerodynamic diameter of 1 μm. For a fractional signal loss of 63% due to dead time, a CED up to 2.0, 84 and 3.6 Sv and thyroid absorbed dose up to 47 Gy, 2000 Gy and 88 Gy for the three systems, respectively, can be assessed for children and intake by ingestion as a worst-case scenario in terms of CED, measured 7 d after intake. This study demonstrates the potential and limitations of using equipment readily available at larger hospitals for estimation of 131I content in thyroid, which could increase the measurement capability following an RN event.
Exploring the electronic, magnetic and thermoelectric properties of TbPtBi half-Heusler: DFT study
Authors: Patel Pratik D 
Published: September 2024

Abstract
In this investigation, we employed density functional theory to scrutinize the structural, electronic, magnetic, thermoelectric, and phonon properties of the topological half-Heusler (HH) TbPtBi compound. The stable phonon dispersion spectrum affirms the dynamical stability of the compound. The inclusion of spin-orbit coupling (SOC) significantly influenced the compound’s electronic and thermoelectric properties. The density of state (DOS) confirmed the impact of SOC on the topologically non-trivial metallic behavior of TbPtBi under the equilibrium lattice constant. The SOC altered the DOS at the Fermi level, leading to band splitting and a notable 70% reduction in state density. The Tb-4f electrons in the compound induce total magnetization in AFM (−5.93 µB/cell) and FM (5.94 µB/cell) phases, while SOC eliminates this magnetization. The thermoelectric performance of TbPtBi under compressive and tensile strain has been systematically studied. The result indicate that compressive strain causes a notable increment in Seebeck coefficient and Power factor (20.4 × 1011 W K−2 m−1) of this compound at room temperature. High thermoelectric performance under compressive strain in the HH compound TbPtBi might open new avenues for investigating other topological thermoelectric materials.
Sliding-mode-based preassigned-time control of a class of memristor chaotic systems
Authors: Fan 樊 Jinrong 金荣 , Lai 赖 Qiang 强 , Wang 汪 Qiming 其铭 , Wang 王 Leimin 雷敏 
Published: September 2024

Abstract
This paper addresses the preassigned-time chaos control problem of memristor chaotic systems with time delays. Since the introduction of memristor, the presented models are nonlinear systems with chaotic dynamics. First, the TS fuzzy method is adopted to describe the chaotic systems. Then, a sliding-model-based control approach is proposed to achieve the preassigned-time stabilization of the presented models, where the upper bound of stabilization time can be arbitrarily specified in advance. Finally, simulation results demonstrate the validity of presented control approach and theoretic results.
Asymptotic analysis on bright solitons and breather solutions of a generalized higher-order nonlinear Schrödinger equation in an optical fiber or a planar waveguide
Authors: Zhao 赵 Xin 鑫 , Du 杜 Zhong 仲 , Zhou 周 Li-Jian 立俭 , Liu 刘 Rong-Xiang 荣香 , Wang 王 Xu-Hu 绪虎 
Published: September 2024

Abstract
We study a generalized higher-order nonlinear Schrödinger equation in an optical fiber or a planar waveguide. We obtain the Lax pair and N-fold Darboux transformation (DT) with N being a positive integer. Based on Lax pair obtained by us, we derive the infinitely-many conservation laws. We give the bright one-, two-, and N-soliton solutions, and the first-, second-, and Nth-order breather solutions based on the N-fold DT. We conclude that the velocities of the bright solitons are influenced by the distributed gain function, g(z), and variable coefficients in equation, h
1(z), p
1(z), r
1(z), and s
1(z) via the asymptotic analysis, where z represents the propagation variable or spatial coordinate. We also graphically observe that: the velocities of the first- and second-order breathers will be affected by h
1(z), p
1(z), r
1(z), and s
1(z), and the background wave depends on g(z).
Correlations in classical non-equilibrium systems and their connection with temperature
Authors: Davis Sergio 
Published: September 2024

Abstract
Correlations are essential for the description of the properties of complex systems, particularly from the point of view of statistical mechanics. In this work we discuss the existence of correlations between parts of a non-equilibrium, composite system in a steady state, and its relation with the concept of temperature fluctuations. For this purpose, we review a recently proposed definition of steady-state temperature, namely the fundamental inverse temperature, together with a descriptor of temperature uncertainty, the inverse temperature covariance, showing that both of these quantities are invariants upon the choice of subsystems.
Optimizing Volcanic Hazard Modeling with Physics-Informed Neural Networks (PINNs)
Authors: Gómez-Leyton Yuvineza , Salazar Pablo 
Published: September 2024

Abstract
Volcanic hazards represent a constant challenge for the communities that coexist around these dynamic geological phenomena. The ability to accurately forecast volcanic activity is crucial to mitigating associated risks and protecting life and resources. In this context, Physics Informed Neural Networks (PINNs) emerge as a promising tool to improve volcanic hazard modeling, fusing the power of neural networks with deep knowledge of the physical laws that govern these complex natural phenomena. The main objective of this work is to provide an initial overview of the application and development of methodologies based on PINNs to improve accuracy and prediction in volcanic hazard modeling. By integrating physical principles through PDEs, we have noticed that PINNs overcome the limitations associated with the scarcity of data and allow us to describe the behavior of a system in an optimal way considering the scarcity of information.
Using Montecarlo Optimization for an Improved Solar Active Region Algorithm Detection Scheme
Authors: Castillo M. S. , Muñoz V. , Calderón F. A. 
Published: September 2024

Abstract
In the present work we propose a new methodology for the automatic identification of solar active regions in solar magnetograms, that uses Montecarlo method to find the optimized filter parameters. The results not only show that it is possible to reconstruct the counts of databases, but also to a robust characterization of its shapes, yielding to the profiling of the active regions area distribution and longevity.
Model for plasma transport due to drift waves based on mappings including finite Larmor radius
Authors: Martinell Julio J , Medrano-Albarrán Andrés E 
Published: September 2024

Abstract
Turbulence in plasmas is modeled by fluctuating electric fields that determine particle motion through the E × B drift velocity which can lead to chaotic behavior. When applied to an ensemble of plasma particles in the chaotic regime their transport is studied: the anomalous plasma transport. The fluctuations are modeled by a spectrum of traveling waves with a wide frequency span which converts the equations of motion into an iterative mapping. The statistical properties of transport are derived. When the waves amplitude is small the particle orbits are regular, but as it is increased the behavior becomes increasingly chaotic. The effect of finite Larmor radius and the presence of a background plasma flow is also studied. We show that when a thermal population of particles is considered, the transport becomes non-local, as evidenced by a non-Gaussian particle distribution function (PDF). We have analyzed two different kinds of sheared flows: (1) a monotonic velocity shear and (2) a non-monotonic shear. The presence of transport barriers associated with the sheared velocity is also studied. We also present the application of the same techniques to study the transport of energetic particles that are born with a monoenergetic distribution.
Evolution Equations Exhibiting H-Theorems related to the LMC Statistical Measures of Complexity
Authors: Plastino Angel R. , Wedemann Roseli S. 
Published: September 2024

Abstract
The LMC statistical measure of complexity (and other related measures that, in this work, are collectively referred to as “LMC measures”) have been applied, by researchers in physics and other areas, to the study of diverse problems. In spite of the intriguing results reported in those studies, relatively little attention has been devoted to characterize what types of dynamics lead to the optimization of the LMC measures. As a first, exploratory step in that direction, we consider an example of a family of evolution equations admitting an H-like theorem related to the LMC measures.
Statistical Exploration of the Salar de Atacama’s: Brine Measurements of the Basin Wells
Authors: Castillo M. S. , Calderón F. A. 
Published: September 2024

Abstract
In this study, we conduct a statistical analysis using the 4-plot, visibility graph, and horizontal visibility graph methods on brine extraction data from the Salar de Atacama basin in Chile. The 4-plot reveals real trends in the data that could lead model proposals. Conversely, complex networks analysis yields no significant findings, suggesting that the data lacks internal structural features and appears random. This randomness underscores the decision-making processes and highlights areas for potential optimization.
Risk-averse multi-stage stochastic programming for real-time optimal market strategy of virtual power plant
Authors: Luo Zhe 
Published: September 2024

Abstract
This paper implements a multi-stage stochastic programming method for the operational cost reduction of the virtual power plant (VPP). Thinking over the uncertainty of future prices at the current time interval, nonanticipativity constraints are implemented to ensure that the VPP decision-making process remains a continuous sequence. Additionally, risk management plays a crucial role in formulating optimal market strategies for the VPP considering the risk-averse. In view of the Conditional-Value-at-Risk (CVaR), the original objective of the scheduling problem is revised to minimize a risk-related function associated with the VPP’s operational costs. This approach enables the risk-averse VPP to integrate a non-differentiable risk index and various operation constraints. Experimental results indicate that the proposed method effectively accounts for the influence of future uncertainties on market strategy and also explains the effects of risk aversion.
Research on reactive power voltage control strategy of distribution network based on information sharing technology
Authors: Ma Min , Gu Zeyu , Yao Zhigang , Yan Zhengjia , Ma Xiaoyun 
Published: September 2024

Abstract
In view of the fact that the traditional voltage control of the distribution network is suitable for local voltage control and affects the economy of the operation of the distribution network, a reactive power voltage control strategy of the distribution network based on information-sharing technology is proposed. First, the overall architecture of voltage control in the distribution network based on information-sharing technology is analyzed, and secondly, an algorithm based on the Jacobian sensitivity matrix is established with the minimum voltage RMS as the control goal. The model is solved, and finally, the effectiveness of the proposed voltage control strategy is verified by combining actual examples. The results show that the proposed voltage control strategy has a better voltage regulation effect and effectively reduces the overall voltage deviation of the distribution network.
Research on the application of single effect evaporation regenerative solar seawater desalination device
Authors: Yuan Jiapu , Wang Yajing 
Published: September 2024

Abstract
In remote islands and brackish water areas, seawater desalination devices are needed, but existing product technologies are relatively complex and inflexible to use. In this paper, a single-effect evaporation regenerative solar seawater desalination device is introduced. In this device, a solar collector composed of a straight-through-all glass vacuum tube is used for heat collection, while single-effect evaporation is used for seawater desalination. Moreover, the latent heat generated during condensation is used to increase the temperature of seawater, which increases the operation efficiency. This device has a simple structure, low cost, and is suitable for water desalination in remote islands and brackish water areas.
Life prediction method of battery energy storage system in frequency modulation application
Authors: Zhou Wenchao , Wang Wenjie 
Published: September 2024

Abstract
To tackle the challenge of lifespan reduction in lithium batteries during frequency modulation, this study introduces a novel Remaining Useful Life (RUL) prediction methodology. The proposed approach integrates Variational Mode Decomposition (VMD) with Gated Recurrent Unit (GRU) networks, thereby efficiently synthesizing data from both operational parameters and capacity metrics. Firstly, VMD is utilized to decompose the initial capacity data of lithium batteries into separate components characterized by high and low frequencies. Subsequently, for the high-frequency elements, GRU is employed for rolling iterative prediction, while for the low-frequency elements, features are extracted from the operational data and inputted into GRU for prediction. Finally, the component prediction results are restored to obtain capacity prediction values. Validation conducted using the NASA dataset shows that the root mean square error of capacity prediction is minimized to 0.0122, with a corresponding minimum average absolute error of 0.0096, and RUL prediction errors are generally within 2 cycles.
Simulation analysis of low-temperature heat generation of power batteries based on the ECM model
Authors: Gong Ji , Liang Wei , Huang Fuyun , Fan Yi , He Libao 
Published: September 2024

Abstract
When the power battery operates in low temperatures, it encounters challenges with charging and discharging, leading to a decline in battery performance, which can prevent electric vehicles from starting and reduce their driving range. To address this, the battery must possess the capability to adapt to both extremely high and low temperatures. This article employs ANSYS software to investigate the heat generation in batteries due to their own charging and discharging processes at different discharge rates under -20°C. When the battery is heated at a 1 C discharge rate for 20 minutes, its temperature rises by approximately 1.1°C; at 2 C, the temperature rises by about 5°C; and at 3 C, it rises by about 11°C. The greater the discharge rate is, the more heat is generated, resulting in a higher temperature rise. Furthermore, prolonged heating at a certain discharge rate can elevate the temperature to a level that is optimal for lithium-iron-phosphate batteries, ultimately reaching their optimal operating range. This research contributes to enabling lithium-ion power batteries to function normally in low-temperature environments, without compromising their lifespan. It is imperative to heat the interior of lithium-ion power batteries to ensure they can start normally after prolonged overnight parking, through preheating.