bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the evolution and the driving forces of land use classification for production, living, and ecological space in China’s Qilian Mountains Nature Reserve from 2000 to 2020
Authors: Wang Yaobin , Zhao Ruitao , Li Ying , Yao Rong , Wu Ruoxue , Li Wenlin 
Published: April 2023

Abstract
With the rapid development of the economy, problems such as resource depletion, environmental degradation, and increasingly strained human-land relations have become increasingly prominent. The rational layout of the production, living, and ecological spaces is the basis for solving the contradiction between economic development and environmental protection. This paper analyzed the spatial distribution pattern and evolution characteristics of the Qilian Mountains Nature Reserve based on the theory of production, living, and ecological space. The results show that the production and living function indexes are rising. The most advantaged areas are in the northern part of the research area, where the terrain is flat and transportation is convenient. The ecological function index rises, falls, then rises again. The high-value area is located in the south of the study area, and its ecological function is intact. The study area is dominated by ecological space. During the study period, the area of production space increased by 858.5 km2 and the living space area increased by 341.12 km2. The intensification of human activities has separated the continuity of ecological space. The area of ecological space has decreased by 233.68 km2. Among geographical factors, altitude has a significant impact on the evolution of living space. Population density is the main socioeconomic factor in changing the areas of production space and ecological space. This study is expected to provide a reference basis for land use planning and sustainable development of resources and environment in nature reserves.
Bildungsaspirationen Jugendlicher in Österreich im Kontext sozialer und regionaler Ungleichheit
Authors: Bodi-Fernandez Otto , Fernandez Karina , Zehetner Elisabeth , Quenzel Gudrun , Auferbauer Martin 
Published: April 2023

ZusammenfassungIm Beitrag werden mittels Daten aus der Jugendstudie „Lebenswelten“ die Einflüsse sozialer und regionaler Ungleichheiten auf die Bildungsaspirationen Jugendlicher in Österreich analysiert. In der Erhebung wurden 14.432 Schülerinnen und Schüler in Österreich aus den Jahrgangsstufen 8 bis 10 zu ihren Lebenszielen, Einstellungen und Lebensbedingungen befragt. Als Ungleichheitsindikatoren dienen neben Stadt-Land-Vergleichen der sozioökonomische Status der Herkunftsfamilie, der Bildungshintergrund der Eltern und der sprachliche Hintergrund. Dabei zeigen sich enge Verflechtungen zwischen regionalen und sozialen Ungleichheiten, wobei beide Ungleichheitsdimensionen unabhängig voneinander Erklärungsanteile für unterschiedliche Bildungsaspirationen liefern.
Sind Einkommensunterschiede zu groß? Eine Analyse von Einstellungen in der österreichischen Bevölkerung
Authors: Wiesböck Laura , Verwiebe Roland 
Published: April 2023

ZusammenfassungIm Zentrum dieser Forschungsnotiz steht die Frage nach der Bewertung von Einkommensungleichheit in der österreichischen Gegenwartsgesellschaft. Anhand von ISSP- und SSÖ-Daten können unsere Analysen diesbezüglich zeigen, dass Einkommensungleichheit von einer großen Mehrheit aktuell als zu hoch wahrgenommen wird. Zudem sehen die Menschen in Österreich sehr häufig den Staat in der Verantwortung Einkommensungleichheit abzubauen; viel häufiger als das in anderen europäischen Ländern der Fall ist. Während der Bereich Gesundheit und Pension seit Mitte der 1980er von der überwiegenden Mehrheit als staatliche Aufgabe gesehen wurde, liegt die Verantwortung für den Abbau von Einkommensungleichheit auf einem niedrigeren Zustimmungsniveau. Die Befürwortung der Absicherung von Arbeitslosen als Verantwortung des Staats nimmt aktuell eher ab, trotz der gestiegenen Arbeitslosigkeit zu Beginn der Pandemie. Schließlich zeigen unsere Regressionsanalysen, dass Unterschiede in der Beurteilung von Einkommensungleichheiten u. a. durch sozio-demographische Faktoren, die berufliche Stellung, das Haushaltseinkommen aber auch durch persönliche Einstellungen und Gerechtigkeitsüberzeugungen erklärt werden können.
YuNet: A Tiny Millisecond-level Face Detector
Authors: Wu Wei , Peng Hanyang , Yu Shiqi 
Published: April 2023

AbstractGreat progress has been made toward accurate face detection in recent years. However, the heavy model and expensive computation costs make it difficult to deploy many detectors on mobile and embedded devices where model size and latency are highly constrained. In this paper, we present a millisecond-level anchor-free face detector, YuNet, which is specifically designed for edge devices. There are several key contributions in improving the efficiency-accuracy trade-off. First, we analyse the influential state-of-the-art face detectors in recent years and summarize the rules to reduce the size of models. Then, a lightweight face detector, YuNet, is introduced. Our detector contains a tiny and efficient feature extraction backbone and a simplified pyramid feature fusion neck. To the best of our knowledge, YuNet has the best trade-off between accuracy and speed. It has only 75856 parameters and is less than 1/5 of other small-size detectors. In addition, a training strategy is presented for the tiny face detector, and it can effectively train models with the same distribution of the training set. The proposed YuNet achieves 81.1% mAP (single-scale) on the WIDER FACE validation hard track with a high inference efficiency (Intel i7-12700K: 1.6ms per frame at 320 × 320). Because of its unique advantages, the repository for YuNet and its predecessors has been popular at GitHub and gained more than 11K stars at https://github.com/ShiqiYu/libfacedetection
Effects of Puberty on Blood Pressure Trajectories — Underlying Processes
Authors: Wójcik Małgorzata , Starzyk Jerzy B. , Drożdż Monika , Drożdż Dorota 
Published: April 2023

AbstractPuberty is a complex process leading to physical, sexual, and psychosocial maturation. The changes in morphology and organ function during puberty also affect blood pressure (BP) regulation, and as a consequence (BP) values change noticeably, reaching values often higher than after reaching full maturity. In children entering puberty, BP, especially systolic, increases and then reaches adult values by the end of puberty. The mechanisms responsible for this process are complex and not fully understood. Sex hormones, growth hormone, insulin-like growth factor-1, and insulin, whose production increases during puberty, significantly regulate BP through complex and overlapping mechanisms. During puberty, the incidence of arterial hypertension also increases, especially in children with excess body weight. The present paper presents the current state of knowledge regarding the influence of processes occurring during puberty on blood pressure.
PTA-metrics for time-lapse analysis of well performance
Authors: Shchipanov A. , Kollbotn L. , Namazova G. 
Published: April 2023

AbstractMonitoring of a well and the surrounding reservoir performances is a crucial component in evaluating on-going and planning future well and field operations. This is carried out at all stages of a well life-span: from exploration to production and, sometimes, after abandonment. Despite tremendous progress in reservoir simulations, simple and fast techniques for well-reservoir performance evaluation are still demanded in the industry, especially in the context of the vast amount of permanent well monitoring data continuously accumulated. Such techniques are of special interest for on-the-fly well monitoring to detect and alarm about deteriorating performance issues. Installation of permanent pressure gauges in many wells motivated development of time-lapse Pressure Transient Analysis (PTA), capable of revealing and monitoring of different factors governing well performance and reservoir production. The paper describes PTA-based metrics introduced in the context of automated interpretation of time-lapse pressure responses and their derivatives. The paper begins with a review of time-lapse PTA applications in the oil and gas industry and examples of patterns formed by the time-lapse pressure transients and their derivatives in the log–log scale. Then, integral-based PTA-metrics for well-reservoir performance analysis are introduced. The metrics enable to distinguish between reservoir and well-reservoir connection contributions to a well’s performance using the Bourdet derivative, while avoiding the need for selecting and matching of a well-reservoir model. The metrics were further tested with synthetic well models and field cases. The testing demonstrated high accuracy of the metrics for the cases of vertical wells with stable transient patterns. Testing for the horizontal well cases has confirmed reliability of the metrics for the stable patterns, while change of the patterns may reduce the metrics reliability. Model independence and using only pressure and rate measurements as input data are the main advantages of the metrics for integration into automated interpretation workflows and on-the-fly analysis intensively developed in the industry.
Lipid content and fatty acid methyl ester profile by Chromochloris zofingiensis under chemical and metabolic stress
Authors: Vitali Lorenzo , Lolli Veronica , Sansone Francesco , Kumar Amit , Concas Alessandro , Lutzu Giovanni Antonio 
Published: April 2023

AbstractThis work encompasses the effect of chemical and metabolic stress on lipid content and fatty acid methyl ester (FAME) profile by Chromochloris zofingiensis. To this aim, a control medium amended with specific concentrations of sodium chloride (15 g L−1, 30 g L−1, and 60 g L−1) and of ethanolamine (ETA) and triethylamine (TEA) (0.050 g L−1, 0.100 g L−1, and 0.150 g L−1) has been used for the cultivation of this strain. A better lipid content than the control was obtained under salt stress compared to chemical stress induced by ETA and TEA, while the effect on lipid productivity was negligible. Thirty grams per liter of NaCl allowed to obtain the highest value of the total lipid content (30.33% DW) compared to the control (20% DW). FAME profile revealed a 97.50–98.99% composition in C16–C18 with no statistically meaningful differences among the three concentrations of salt and chemicals tested. The most represented fatty acids were C18:1 oleic (> 45%wt), C16:0 palmitic (> 34%wt), and C18:2 linoleic (> 21%wt) obtained under 60 and 30 mg L−1 of NaCl and 0.150 g L−1 of ETA, respectively. When using 0.150 g L−1 of ETA, unsaturated fatty acids reached the highest portion (67.53%wt) than the control (62.26%wt). A quantitative and qualitative analysis of all FAMEs has been carried out to improve biodiesel properties. Chemical and physical properties of algal lipid–derived biodiesel showed a compliance with ASTM standards for unmixed biodiesel and the main European regulations (EN 14214 and EN 590) for the quality of biodiesel resulted fulfilled. Therefore, a profitable biodiesel can be obtained when cultivating C. zofingiensis under osmotic stress.
Graphical abstract
The effect of moderate-intensity endurance plus resistance training combined with MCCR diet on glycemic status in prediabetes
Authors: Zeng Siqin , Tian Xiaolou , Liu Yang , Deng Yuting , Chen Jiawei , Su Peng , Feng Chen , Wang Mei , Liu Hua 
Published: April 2023

Abstract
Background
There is little clinical evidence that exercise improves prediabetic individuals' glycemic status on glycated hemoglobin A1c (Hb1Ac) and homeostatic model assessment (HOMA) indices. The purpose of this study is to investigate how an eight-week high volume of moderate-intensity endurance plus resistance exercise combined with a medium carbohydrate, low fat, calorie-restricted, carbohydrate counting diet (MCCR) affects Hb1Ac and HOMA indices in individuals with prediabetes.

Methods
Twenty-two young obese people (BMI ≥ 28 kg/m2) were divided into two groups: prediabetes intervention group (INT, n = 10) and normoglycemic control group (CON, n = 12). All participants received the MCCR dietary intervention and a high volume of moderate-intensity endurance plus resistance training, 6 days/week, 5 times/day, and 50 min/time, for 8 weeks. Body composition and circumference, serum lipids, fasting blood glucose (FPG), 2-h post-glucose (2 h-PG), fasting insulin (FINS), Hb1Ac, the insulin resistance (HOMA-IR), insulin sensitivity (HOMA-IS) and β-cell function (HOMA-β) indices were assessed.

Results
After exercise and dietary intervention, Hb1Ac, 2 h-PG, and FINS levels were significantly reduced in both the INT and CON groups (p < 0.05 or p < 0.01). HOMA-IR, HOMA-IS, and body fat percent were significantly improved in the INT group (p < 0.05), but HOMA-β was not observed. Additionally, Hb1Ac levels were significantly normalized in the prediabetic individuals, with a reversion rate of 71.43%, while there was no difference in FPG.

Conclusion
The MCCR diet combined with an eight-week high volume of moderate-intensity endurance and resistance training is effective in reversing Hb1Ac and improving insulin sensitivity in young, obese adults with prediabetes.
Clinical features and outcome of vertebral osteomyelitis after spinal injection: is it worth the price?
Authors: Yagdiran Ayla , Paul Gregor , Meyer-Schwickerath Charlotte , Scheder-Bieschin Justus , Tobys David , Kernich Nikolaus , Eysel Peer , Jung Norma 
Published: April 2023

Abstract
Purpose
Spinal injections are increasingly used for back pain treatment. Vertebral osteomyelitis (VO) after spinal injection (SIVO) is rare, but patient characteristics and outcome have not been well characterized. The aim of this study was to assess patient characteristics of SIVO in comparison to patients with native vertebral osteomyelitis (NVO) and to determine predictors for 1-year survival.

Methods
This is a single-center cohort study from a tertiary referral hospital. This is a retrospective analysis of Patients with VO who were prospectively enrolled into a spine registry from 2008 to 2019. Student’s t-test, Kruskal–Wallis test or Chi-square test were applied for group comparisons. Survival analysis was performed using a log-rank test and a multivariable Cox regression model.

Results
283 VO patients were enrolled in the study, of whom 44 (15.5%) had SIVO and 239 (84.5%) NVO. Patients with SIVO were significantly younger, had a lower Charlson comorbidity index and a shorter hospital stay compared to NVO. They also showed a higher rate of psoas abscesses and spinal empyema (38.6% [SIVO] vs. 20.9% [NVO]). Staphylococcus aureus (27%) and coagulase-negative staphylococci (CNS) (25%) were equally often detected in SIVO while S. aureus was more frequently than CNS in NVO (38.1% vs. 7.9%).Patients with SIVO (P = 0.04) had a higher 1-year survival rate (Fig. 1). After multivariate analysis, ASA score was associated with a lower 1-year survival in VO.

Conclusion
The results from this study emphasize unique clinical features of SIVO, which warrant that SIVO should be estimated as a separate entity of VO.
The M-matrix group inverse problem for distance-biregular graphs
Authors: Abiad Aida , Carmona Ángeles , Encinas Andrés M. , Jiménez María José 
Published: April 2023

AbstractIn this work, we obtain the group inverse of the combinatorial Laplacian matrix of distance-biregular graphs. This expression can be obtained trough the so-called equilibrium measures for sets obtained by deleting a vertex. Moreover, we show that the two equilibrium arrays characterizing distance-biregular graphs can be expressed in terms of the mentioned equilibrium measures. As a consequence of the minimum principle, we provide a characterization of when the group inverse of the combinatorial Laplacian matrix of a distance-biregular graph is an M-matrix.
Effect of demineralization on pyrolysis characteristics of LPS coal based on its chemical structure
Authors: Qian Lin , Xue Jinkai , Tao Chao , Ma Chao , Jiang Xiaopeng , Guo Feiqiang 
Published: April 2023

AbstractThe critical issue in developing mature Oxy-Coal Combustion Steam System technology could be the reactivity of demineralized coal which, is closely related to its chemical structure. The chemical structures of Liupanshui raw coal (LPS-R) and Liupanshui demineralized coal (LPS-D) were analyzed by FTIR and solid-state 13C-NMR. The pyrolysis experiments were carried out by TG, and the pyrolysis kinetics was analyzed by three iso-conversional methods. FTIR and 13C-NMR results suggested that the carbon structure of LPS coal was not altered greatly, while demineralization promoted the maturity of coal and the condensation degree of the aromatic ring, making the chemical structure of coal more stable. The oxygen-containing functional groups with low bond energy were reduced, and the ratio of aromatic carbon with high bond energy was increased, decreasing the pyrolysis reactivity. DTG curve-fitting results revealed that the thermal weight loss of LPS coal mainly came from the cleavage of aliphatic covalent bonds. By pyrolysis kinetics analysis of LPS-R and LPS-D, the apparent activation energies were 76 ± 4 to 463 ± 5 kJ/mol and 84 ± 2 to 758 ± 12 kJ/mol, respectively, under different conversion rates. The reactivity of the demineralized coal was inhibited to some extent, as the apparent activation energy of pyrolysis for LPS-D increased by acid treatment.
Combustion mechanism and control approaches of underground coal fires: a review
Authors: Liang Yuntao , Yang Yalan , Guo Sida , Tian Fuchao , Wang Shaofeng 
Published: April 2023

AbstractWith the large-scale mining of coal resources, the huge economic losses and environmental problems caused by underground coal fires have become increasingly prominent, and the research on the status quo and response strategies of underground coal fires is of great significance to accelerate the green prevention and control of coal fires, energy conservation and emission reduction. In this paper, we summarized and sorted out the research status of underground coal fires, focused on the theoretical and technical issues such as underground coal fire combustion mechanism, multiphysics coupling effect of coal fire combustion, fire prevention and extinguishing technology for underground coal fires, and beneficial utilization technology, and described the latest research progress of the prevention and control for underground coal fire hazards. Finally, the key research problems in the field of underground coal fire hazards prevention and control were proposed in the direction of the basic theory, technology research, comprehensive management and utilization, with a view to providing ideas and solutions for the management of underground coal fires.
Process and strategies of growth in medium-sized fast-growing firms
Authors: Morettini Lucio , Potì Bianca , Gabriele Roberto 
Published: April 2023

AbstractThe study investigates the firm high growth phenomenon and its relationships with reorganization costs and external financial dependence. We use a sample of medium-sized Italian fast-growing firms. Fast-growth firms are structured enough to plan growth strategies and not depend on occasional external events. The paper provides insight into the lumpiness of the process of firm expansion accompanying its reorganization, conditional on the presence or not of a fast-growth event. Moreover, the analysis shed some light on the relationship between growth and performance and on the growth process of a subsample of young, fast-growing firms to check the presence of differences in the process or the strategy of growth. We find a positive and significant relation between present growth and proxy variables for resources organization, a lumpy growth process, and a positive association of growth and profit for almost the whole sample, i.e., a positive balance between costs and benefit of growth.
Regulating the Electrical and Mechanical Properties of TaS2 Films via van der Waals and Electrostatic Interaction for High Performance Electromagnetic Interference Shielding
Authors: Deng Fukang , Wei Jianhong , Xu Yadong , Lin Zhiqiang , Lu Xi , Wan Yan-Jun , Sun Rong , Wong Ching-Ping , Hu Yougen 
Published: April 2023

AbstractLow-dimensional transition metal dichalcogenides (TMDs) have unique electronic structure, vibration modes, and physicochemical properties, making them suitable for fundamental studies and cutting-edge applications such as silicon electronics, optoelectronics, and bioelectronics. However, the brittleness, low toughness, and poor mechanical and electrical stabilities of TMD-based films limit their application. Herein, a TaS2 freestanding film with ultralow void ratio of 6.01% is restacked under the effect of bond-free van der Waals (vdW) interactions within the staggered 2H-TaS2 nanosheets. The restacked films demonstrated an exceptionally high electrical conductivity of 2,666 S cm−1, electromagnetic interference shielding effectiveness (EMI SE) of 41.8 dB, and absolute EMI SE (SSE/t) of 27,859 dB cm2 g−1, which is the highest value reported for TMD-based materials. The bond-free vdW interactions between the adjacent 2H-TaS2 nanosheets provide a natural interfacial strain relaxation, achieving excellent flexibility without rupture after 1,000 bends. In addition, the TaS2 nanosheets are further combined with the polymer fibers of bacterial cellulose and aramid nanofibers via electrostatic interactions to significantly enhance the tensile strength and flexibility of the films while maintaining their high electrical conductivity and EMI SE.This work provides promising alternatives for conventional materials used in EMI shielding and nanodevices.
Regulating the Solvation Structure of Li+ Enables Chemical Prelithiation of Silicon-Based Anodes Toward High-Energy Lithium-Ion Batteries
Authors: He Wenjie , Xu Hai , Chen Zhijie , Long Jiang , Zhang Jing , Jiang Jiangmin , Dou Hui , Zhang Xiaogang 
Published: April 2023

AbstractThe solvation structure of Li+ in chemical prelithiation reagent plays a key role in improving the low initial Coulombic efficiency (ICE) and poor cycle performance of silicon-based materials. Nevertheless, the chemical prelithiation agent is difficult to dope active Li+ in silicon-based anodes because of their low working voltage and sluggish Li+ diffusion rate. By selecting the lithium–arene complex reagent with 4-methylbiphenyl as an anion ligand and 2-methyltetrahydrofuran as a solvent, the as-prepared micro-sized SiO/C anode can achieve an ICE of nearly 100%. Interestingly, the best prelithium efficiency does not correspond to the lowest redox half-potential (E1/2), and the prelithiation efficiency is determined by the specific influencing factors (E1/2, Li+ concentration, desolvation energy, and ion diffusion path). In addition, molecular dynamics simulations demonstrate that the ideal prelithiation efficiency can be achieved by choosing appropriate anion ligand and solvent to regulate the solvation structure of Li+. Furthermore, the positive effect of prelithiation on cycle performance has been verified by using an in-situ electrochemical dilatometry and solid electrolyte interphase film characterizations.