bluuebunny/crossref_metadata_2025_split huggingface dataset:
Employment status among cancer survivors in a Late Effects Clinic in Denmark
Authors: Skovgaards Annette Sicko , Mattsson Thea Otto , Tolstrup Lærke Kjær 
Published: November 2023

Abstract
Purpose
This study aims to investigate changes in employment status among disease-free working-age cancer survivors (CSs) with late effects from diagnosis to their first meeting in the Late Effects Clinic (LEC) and investigate associated patient-reported outcomes of reduced employment status.

Methods
Retrospective analysis of a cohort of CSs followed in a LEC at a single institution from January, 2022, to March, 2023. Working-age CSs with no current evidence of active cancer were included in this study. CSs completed a baseline questionnaire (EORTC QLQ-SURV100) before their initial consultation. Reduced employment status was defined as transition from being in paid work at diagnosis to working fewer hours or not at all at the first visit. Multivariate linear regression analysis was used.

Results
A total of 119 CSs with diverse cancer types with a mean age of 51 years (range 26 to 70) were included in this study. Eighty percent were female. Of 93 CSs in paid work at diagnosis, 66 (71%) have reduced employment status. Reduced employment status was associated with lower role functioning score (β = −12.3, p = 0.046), higher loss of income score (β = 35.1, p = 0.001), and lower Global health status score (β = − 8.3, p = 0.05).

Conclusions
This study shows that the majority of CSs seen in the LEC have reduced employment status. This is associated with impaired quality of life.

Implications for cancer survivors
Identifying and treating late effects early in cancer survivorship are important to secure CSs’ labour market attachment and, thus, their financial and social well-being.
Measuring Innovation in Mauritius’ ICT Sector
Using Unsupervised Machine Learning: A Web Mining and Topic Modeling
Approach
Authors: Böhmecke-Schwafert Moritz , Dörries Colin 
Published: November 2023

AbstractMeasuring innovation accurately and efficiently is crucial for
policymakers to encourage innovation activity. However, the established indicator
landscape lacks timeliness and accuracy. In this study, we focus on the country of
Mauritius that is transforming its economy towards the information and communication
technology (ICT) sector. We seek to extend the knowledge base on innovation activity
and the status quo of innovation in Mauritius by applying an unsupervised machine
learning approach. Building on previous work on new experimental innovation
indicators, we combine recent advances in web mining and topic modeling and address
the following research questions: What are potential areas
of innovation activity in the ICT sector of Mauritius? Furthermore,
do web mining and topic modeling provide sufficient
indicators to understand innovation activities in emerging countries?
To answer these questions, we apply the natural language processing (NLP) technique
of Latent Dirichlet Allocation (LDA) to ICT companies’ website text data. We then
generate topic models from the scraped text data. As a result, we derive seven
categories that describe the innovation activities of ICT firms in Mauritius. Albeit
the model approach fulfills the requirements for innovation indicators as suggested
in the Oslo Manual, it needs to be combined with additional metrics for innovation,
for example, with traditional indicators such as patents, to unfold its potential.
Furthermore, our approach carries methodological implications and is intended to be
reproduced in similar contexts of scarce or unavailable data or where traditional
metrics have demonstrated insufficient explanatory power.
Contact Area of Electrification Materials Relating to Triboelectric Generators: A Comparative Study
Authors: Repoulias Aristeidis , Logothetis Irini , Matsouka Dimitra , Vassiliadis Savvas 
Published: November 2023

AbstractTriboelectric generators (TEGs) stemming from the triboelectric phenomena, are promising for energy harvesting due to their high output power and efficiency. Analysis of the tribo material selection for TEGs has suggested that energy generation is linked to heterogeneous and homogeneous materials found at opposite ends of the triboelectric series. Current research has identified that the triboelectric phenomenon also exists from contact between identical tribo materials with the advancement of surface modification. However, a comparison of composite and identical homogeneous TEGs has yet to be reported. For this research, organic polymer membranes Polyamide-6 (PA6) and Polytetrafluoroethylene (PTFE) were evaluated. The membranes were cut into samples of varying dimensions to build three sets of TEGs for comparison. Two identical sets of four sampled TEGs were fabricated using the same membrane (i.e., PA6-PA6 and PTFE-PTFE); in contrast to a composite set of four sampled TEGs made from the two distinct membranes (i.e., PA6-PTFE). By repeatedly sampling the TEGs in sliding mode at a speed of 0.2 m/s and with a vertical force of 9.8 N an open circuit voltage (Voc) was generated and recorded. As a result, the Voc of the identical TEGs was compared to the Voc of the composite TEG in which the tribo materials are located at opposite ends of the triboelectric series. It was also observed that the Voc increased almost linear in relation to the surface area of the TEGs; thus, suggesting that the surface area of the TEG can influence significantly the Voc to a great extent.
Graphical abstract
Entanglement-assisted quantum error-correcting codes from subfield subcodes of projective Reed–Solomon codes
Authors: Gimenez Philippe , Ruano Diego , San-José Rodrigo 
Published: November 2023

AbstractWe study the subfield subcodes of projective Reed–Solomon codes and their duals: we provide bases for these codes and estimate their parameters. With this knowledge, we can construct symmetric and asymmetric entanglement-assisted quantum error-correcting codes, which in many cases have new or better parameters than the ones available in the literature.
Influence analysis of complex crack geometric parameters on mechanical properties of soft rock
Authors: Zhao Yang , He Xin , Jiang Lishuai , Wang Zongke , Ning Jianguo , Sainoki Atsushi 
Published: November 2023

AbstractSoft rocks, such as coal, are affected by sedimentary effects, and the surrounding rock mass of underground coal mines is generally soft and rich in joints and cracks. A clear and deep understanding of the relationship between crack geometric parameters and rock mechanics properties in cracked rock is greatly important to the design of engineering rock mass structures. In this study, computed tomography (CT) scanning was used to extract the internal crack network of coal specimens. Based on the crack size and dominant crack number, the parameters of crack area, volume, length, width, and angle were statistically analyzed by different sampling thresholds. In addition, the Pearson correlation coefficients between the crack parameters and uniaxial compression rock mechanics properties (uniaxial compressive strength UCS, elasticity modulus E) were calculated to quantitatively analyze the impact of each parameter. Furthermore, a method based on Pearson coefficients was used to grade the correlation between crack geometric parameters and rock mechanical properties to determine threshold values. The results indicated that the UCS and E of the specimens changed with the varied internal crack structures of the specimens, the crack parameters of area, volume, length and width all showed negative correlations with UCS and E, and the dominant crack played an important role both in weakening strength and stiffness. The crack parameters of the angle are all positively correlated with the UCS and E. More crack statistics can significantly improve the correlation between the parameters of the crack angle and the rock mechanics properties, and the statistics of the geometric parameters of at least 16 cracks or the area larger than 5 mm2 are suggested for the analysis of complex cracked rock masses or physical reproduction using 3D printing. The results are validated and further analyzed with triaxial tests. The findings of this study have important reference value for future research regarding the accurate and efficient selection of a few cracks with a significant influence on the rock mechanical properties of surrounding rock mass structures in coal engineering.
Comparative study on the flame retardancy of CO2 and N2 during coal adiabatic oxidation process
Authors: Fang Xiyang , Tan Bo , Wang Haiyan 
Published: November 2023

AbstractTo test the effectiveness of N2 and CO2 in preventing coal from spontaneously combusting, researchers used an adiabatic oxidation apparatus to conduct an experiment with different temperature starting points. Non-adsorbed helium (He) was used as a reference gas, and coal and oxygen concentration temperature variations were analyzed after inerting. The results showed that He had the best cooling effect, N2 was second, and CO2 was the worst. At 70℃ and 110℃, the impact of different gases on reducing oxygen concentration and the cooling effect was the same. However, at the starting temperature of 150℃, CO2 was less effective in lowering oxygen concentration at the later stage than He and N2. N2 and CO2 can prolong the flame retardation time of inert gas and reduce oxygen displacement with an initial temperature increase. When the starting temperature is the same, N2 injection cools coal samples and replaces oxygen more effectively than CO2 injection. The flame retardancy of inert gas is the combined result of the cooling effect of inert gas and the replacement of oxygen. These findings are essential for using inert flame retardant technology in the goaf.
Nonlinear dynamics response of porous functionally graded annular plates using modified higher order shear deformation theory
Authors: Jafary Hojat , Taghizadeh Mohsen 
Published: November 2023

AbstractIn this investigation, the nonlinear dynamics of porous annular plates that have been functionally graded are examined under varying time-dependent loads. Both simple supported and fully clamped boundary conditions are taken into account. The mechanical properties of the functionally graded plate in its thickness are considered according to the distribution function of the modified law. In addition, porosity, as a stress-relieving property, is also applied throughout the plate thickness by different functions and pore volume fractions. By adopting Hamilton’s principle, the equations of motion are obtained based on the modified higher-order shear deformation plate theory. Then these partial differential equations are solved using the viscous dynamic relaxation method in conjunction with Newmark’s implicit integration method. The present findings are compared and successfully confirmed with those available in the literature. Finally, the effects of some key factors such as porosity distribution type, pore volume fraction, power-law index, loading conditions, and thickness-to-radius ratio on the dynamic behavior of both simple and fully clamped plates have been studied in detail. The study’s findings indicate that porosity pattern X, characterized by a greater prevalence of interconnected pores, exhibited enhanced resistance to deflection. Conversely, pattern O, featuring a more uniformly distributed pore size, effectively mitigated stress in FG porous materials. These observations offer valuable insights for optimizing plate design and elevating its performance.
Light‐Driven and Nutrient‐Driven Displacements of Subsurface Chlorophyll Maximum Depth in Subtropical Gyres
Authors: Xing Xiaogang , Xiu Peng , Laws Edward A. , Yang Guo , Liu Xin , Chai Fei 
Published: November 2023

AbstractThe mechanism that determines the dynamics of subsurface chlorophyll maximum depth (zSCM) has long been debated. Although a coupling between zSCM and the top of nitracline (znit) has been widely observed in the open ocean, a co‐location of zSCM and an isolume depth (ziso) has often been reported in oligotrophic waters. In this study, based on continuous observations of ten BGC‐Argo floats, we found that the seasonal displacement of zSCM in all subtropical gyres was driven mainly by light, but zSCM displayed a nutrient‐driven pattern occasionally when znit became shallower than ziso. We therefore proposed a “two‐group competition framework”: zSCM in subtropical gyres is determined by the competition of two phytoplankton groups, nutrient‐sensitive picoeukaryotes and light‐sensitive Prochlorococcus. When znit (ziso) is shallower than ziso (znit), picoeukaryotes (Prochlorococcus) dominate the chlorophyll biomass at the SCM, and thus zSCM follows znit (ziso). This paradigm reconciles the inconsistent conclusions drawn from earlier studies.
Transport of Aged Dissolved Organic Carbon via the Surface Current Revealed by Radiocarbon
Authors: Ryu Yeongjin , Han Heejun , Na Taehee , Kim Guebuem , Druffel Ellen R. M. , Hwang Jeomshik 
Published: November 2023

AbstractThe East Sea (also known as the Japan Sea) is connected to the Northwest Pacific via shallow straits and has independent deep water circulation, as a model miniature ocean. The radiocarbon age of dissolved organic carbon (DOC) in the East Sea ranged from 2,000 to 3,700 years, exceeding the water turnover time (∼100 years). The oldest DOC was found in the subsurface layer characterized by the Tsushima Warm Water. Comparison of the radiocarbon content and concentration of DOC in the East Sea to those in the ocean suggests that aged DOC was transported conservatively from the Northwest Pacific to the East Sea via the shallow Tsushima Warm Current. The fractions of DOC released by serial‐oxidation of the oldest DOC sample had identical radiocarbon ages, implying that refractory DOC was produced in situ and added to the DOC pool in the East Sea.
A Statistical Analysis of the Auroral Streamer Current System
Authors: Aryan Homayon , Weygand James Michael , Bortnik Jacob , Chu Xiangning , Cao Xin , Tian Sheng 
Published: November 2023

AbstractMagnetosphere‐ionosphere coupling is an important process that involves the transport of vast quantities of mass, energy, and momentum in the Earth's near‐space environment. This transport involves extended, global sheets of electrical current that flows along the magnetic field lines. Many studies have discussed the magnetosphere‐ionosphere coupling between the fast‐moving earthward flows and the north‐south oriented streamers in the ionosphere. However, only recently, the temporal evolution of the ionospheric current pattern, from the start to the end of the streamer, has been investigated through case studies, by combining the ionospheric current pattern with the magnetotail fast‐moving earthward flows. In this study, we show the statistical spatial and temporal evolution of the ionospheric current pattern associated with north‐south oriented streamers using simultaneous THEMIS (Time History of Events and Macroscale Interaction during Substorms) observations of fast‐moving earthward flows within the magnetotail, Geostationary Operational Environmental Satellite observations, auroral all‐sky images, and ionospheric equivalent current maps derived from ground magnetometer measurements. We show that the streamer related ionospheric field‐aligned currents (FACs) are statistically almost equivalent in magnitude for the 38 events that were analyzed. Results show that the streamer related ionospheric FACs are statistically approximately similar in magnitude for 38 events. The duration of these events ranges from 2 to 21 min with a median value of 9 min.
Ionospheric Super Bubbles Near Sunset and Sunrise During the 26–28 February 2023 Geomagnetic Storm
Authors: Sun Wenjie , Li Guozhu , Lei Jiuhou , Zhao Biqiang , Hu Lianhuan , Zhao Xiukuan , Li Yu , Xie Haiyong , Li Yi , Ning Baiqi , Liu Libo 
Published: November 2023

AbstractIonospheric equatorial plasma bubbles (EPBs) are usually generated around sunset over equatorial to low latitudes. In this study, super EPBs extending to middle latitudes were observed, which were freshly generated at both post‐sunset and near‐sunrise periods over East/Southeast Asia during the geomagnetic storm on 26–28 February 2023. The post‐sunset (near‐sunrise) EPB persisted ∼4 (8) hours, drifting eastward (westward) and extending up to ∼35°N. Strong L‐band scintillations, deep total electron content (TEC) depletions and significant positioning errors were caused by the post‐sunset EPB. However, the scintillations and TEC depletions linked with the near‐sunrise EPB were relatively weaker, and no apparent positioning error was caused. Before the onsets of the post‐sunset EPBs, rapid upward vertical plasma drifts of ∼60 m/s, which could be linked with storm‐time prompt penetration electric fields, were observed at magnetic equator. The upward vertical drifts could amplify the F‐region bottomside perturbation via increasing the growth rate of Rayleigh‐Taylor (R‐T) instability and lead to the generation of post‐sunset EPBs. On the other hand, before the onset of near‐sunrise EPBs, the uplift of F layer was more significant at higher latitudes than that at magnetic equator, probably indicating the presence of equatorward neutral wind. Both the equatorial F layer uplift and equatorward neutral wind could contribute to the growth of R‐T instability and favor the generation of near‐sunrise EPBs.
Osmium Isotope Heterogeneity of the Upper Mantle: Evidence From the Bay of Islands Ophiolite Complex, Newfoundland
Authors: Wang Yujian , Mungall James E. , Liu Jingao 
Published: November 2023

AbstractUnderstanding and determining the composition and evolution of the upper mantle is valuable to unravel Earth's evolutionary geodynamics. The compositions of oceanic basalts are inevitably biased by the preferential melting of fusible mantle components and the pooling of melts from multiple sources. Here we present whole rock and mineral chemistry as well as Re‐Os isotopic systematics of the Table Mountain ophiolitic mantle massif from the Bay of Islands ophiolite complex, complemented by thermodynamic models of melt extraction. The Table Mountain lherzolites were formed by moderate degrees (5%–15%) of shallow polybaric melting. We divide the harzburgites into two types. Type I harzburgites represent residues of high‐pressure melting, and Type II harzburgites appear to have been further modified by second‐stage flux melting above a subduction zone induced by slab sediment‐derived aqueous fluids. The Table Mountain peridotites display highly variable “initial” 187Os/188Os485 Ma isotope compositions, including 0.1252–0.1253 for the Type I harzburgites, 0.1217–0.1236 and 0.1192–0.1198 for both lherzolites and Type II harzburgites. These Os isotopic variations cannot be generated by different degrees of partial melting of a homogenous fertile mantle immediately prior to obduction, and hence must have been inherited from ancient melting events. The Table Mountain lherzolites with inherited ancient melting signals are of particular significance because they demonstrate that the record of earlier melting events is not limited to ultra‐refractory harzburgites but is also present even in relatively fertile lherzolites. Our observations underscore the ubiquity of ancient melting signatures in the entire compositional spectrum of the depleted upper mantle.
Anomalous Sound Velocities of Talc at High Pressure and Implications for Estimating Water Content in Mantle Wedge
Authors: Chen Peng , Wang Duojun , Cai Nao , Zhang Jikai , Zhang Rui , Cao Yang 
Published: November 2023

AbstractTalc is widely distributed in metamorphic and hydrothermally altered rocks, and its velocity is useful for constraining the velocity of mantle wedge. In this study, we used ultrasonic interferometry to study the elastic properties of talc polycrystalline samples at high pressure (up to 5.6 GPa). VP increases monotonically with increasing pressure, and VS increases with pressure up to ∼3.2 GPa, but negative pressure dependence occurs above ∼3.2 GPa. Talc has a VP/VS ratio of 1.63–2.14 and Poisson's ratio of 0.20–0.36 at the pressure of 1.2–5.6 GPa, which can be used to explain some anomalous seismic observations in subduction zone. Combining the elastic properties of talc with those of olivine, orthopyroxene, and antigorite, the wave velocity of mantle wedge was calculated as a function of water content. The results suggest that lower water content is needed to match the observed values of seismic tomography when talc is present, compared with the antigorite scenario.
Water Content and Hydrogen Isotopes of Olivine‐Hosted Melt Inclusions in the Dali Picrites, SW China: Reassessing the Role of Water in the Formation of the Emeishan Large Igneous Province
Authors: Chen Qijing , Ren Zhong‐Yuan , Xia Xiao‐Ping , Zhang Le , Yang Qing , Yuan Chao 
Published: November 2023

AbstractThe contribution of water to the formation of large igneous provinces (LIPs) remains controversial. We report the first measurement of water content and hydrogen isotope ratios in olivine‐hosted melt inclusions from the Dali picrites, which belong to the Emeishan LIP (ELIP). The inclusions have a wide range of H2O content (0.01–1.73 wt %) and H isotope ratios (δD = 87 ± 11‰ to −267 ± 14‰). The lowest H isotope ratio is below that of the average mantle but comparable to that of the dehydrated slab. These results suggest that most of the Dali melt inclusions have undergone H+ diffusion and H2O degassing. However, some melt inclusions have higher H2O content and lower δD value, which may have undergone rapid cooling and thereby preserved their magmatic H isotope and water content signatures. The reconstructed H2O content of the primary magma for the Dali picrites is ∼1.35 wt %, much lower than the previous estimate for the ELIP primary magma (3.44 ± 0.89 wt % or 4.0–5.6 wt %). Our results support a moderately hydrous (OIB‐type) magma for the ELIP, instead of a highly hydrous one (arc‐type). The mantle source of the picrites is calculated to contain 0.28–0.52 wt % H2O, and recycled oceanic crust that underwent seawater alteration and subsequent slab dehydration during subduction, causing the low δD value of the melt inclusions. We suggest that the Dali picrites may have formed by partial melting of the recycled oceanic crust and metasomatized mantle peridotite.