bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of the Carbon Support on Heterogeneous Molecular Catalysts for Carbon Dioxide Reduction
Authors: Yang Shucheng , Zhou Zihe , Wei Lixin , Li Siqi , Liu Song 
Published: November 2023

AbstractMolecular catalysts stabilized on a support material, also called heterogeneous molecular catalysts, exhibit excellent performance in carbon dioxide reduction reaction (CO2RR). Different support in these electrocatalysts can have a substantial influence on the activity, making support control one tool to enhance the CO2RR performance. However, a systematic understanding of the support effects is lacking. Taking cobalt phthalocyanine (CoPc) immobilized onto different carbon materials as examples, we demonstrate that the surface area, pore structure and the morphology of the as‐prepared heterogeneous molecular catalysts can influence the CO2 transfer and adsorption, and then change the CO2RR activity. In contrast to the other four materials, CoPc/mesoporous carbon (MC) can efficiently convert carbon dioxide to carbon monoxide at minimal overpotential (−0.8 V vs. RHE) due to its special nanostructure and pore distribution. The results of this study suggest that the performance of electrocatalytic reduction of carbon dioxide can be improved by changing different substrates.
Does green technology innovation benefit corporate financial performance? Investigating the moderating effect of media coverage
Authors: Qing Lingli , Alnafrah Ibrahim , Dagestani Abd Alwahed 
Published: November 2023

AbstractThe premise of being “green” is often perceived as socially beneficial, yet its financial implications remain uncertain. To address this gap, we examine the complex relationship between green technology innovations (GTIs) and corporate financial performance (CFP) in the semiconductor industry. Our research revealed a crucial distinction between the two types of GTIs: proactive and reactive. Proactive GTIs have emerged as strong drivers of positive impact on CFP, positioning themselves as attractive and financially beneficial investments. Conversely, reactive GTIs negatively influence a firm's financial performance, raising questions about its long‐term viability. Additionally, our research goes beyond this core relationship to explore the moderating influence of media coverage on GTI–CFP dynamics by focusing on both print and new media. Interestingly, print media amplifies the favorable connection between GTIs and CFP, suggesting its role in shaping perceptions and stakeholder engagement. Surprisingly, new media weakens this connection, highlighting the complex interplay between digital platforms and CFP. Moreover, our study highlights the fact that the impact of GTIs and media coverage on CFP is particularly pronounced among smaller companies, thereby offering strategic insights for firms of varying sizes. These nuanced findings contribute substantially to our understanding of GTI adoption and the role of media in informal environmental regulation, ultimately providing valuable guidance for semiconductor companies and investors navigating the “green” landscape.
A study on MMG sensor using piezoelectric polymer nanofibers by electrospinning
Authors: Abe Rintaro , Yasuda Koa , Kanda Takefumi , Wakimoto Shuichi , Oka Hisao 
Published: November 2023

AbstractIn the fields of medical and sports science, it is required to evaluate muscle activity qualitatively and quantitatively. Currently, mechanomyogram (MMG) that can reflect the mechanical activity of muscle fibers is attracting attention. The purpose of this study is to develop a sensor that can measure MMG during exercise. In this study, a small and flexible MMG sensor using P(VDF/TrFE), which is a piezoelectric polymer material, spun into nanofibers by the electrospinning method has been fabricated and evaluated. By the fabricated electrospinning equipment and the obtained fabrication conditions of the nanofibers MMG sensor has been fabricated by using piezoelectric polymer fibers. By using nanofiber nonwoven fabric for the sensor element, the flexible sensor has been realized. In a sound wave reception experiment assuming MMG measurement, the P(VDF/TrFE) nonwoven fabric element showed that the element detected the sound pressure. Additionally, MMG during isometric contraction and pedaling motion has been measured using the fabricated sensor. The results show that the proposed sensor is effective for measuring MMG during exercise.
Hurricane disturbance drives trophic changes in neotropical mountain stream food webs
Authors: Gutiérrez‐Fonseca Pablo E. , Pringle Catherine M. , Ramírez Alonso , Gómez Jesús E. , García Pavel 
Published: November 2023

AbstractFood webs are complex ecological networks that reveal species interactions and energy flow in ecosystems. Prevailing ecological knowledge on forested streams suggests that their food webs are based on allochthonous carbon, driven by a constant supply of organic matter from adjacent vegetation and limited primary production due to low light conditions. Extreme climatic disturbances can disrupt these natural ecosystem dynamics by altering resource availability, which leads to changes in food web structure and functioning. Here, we quantify the response of stream food webs to two major hurricanes (Irma and María, Category 5 and 4, respectively) that struck Puerto Rico in September 2017. Within two tropical forested streams (first and second order), we collected ecosystem and food web data 6 months prior to the hurricanes and 2, 9, and 18 months afterward. We assessed the structural (e.g., canopy) and hydrological (e.g., discharge) characteristics of the ecosystem and monitored changes in basal resources (i.e., algae, biofilm, and leaf litter), consumers (e.g., aquatic invertebrates, riparian consumers), and applied Layman's community‐wide metrics using the isotopic composition of 13C and 15N. Continuous stream discharge measurements indicated that the hurricanes did not cause an extreme hydrological event. However, the sixfold increase in canopy openness and associated changes in litter input appeared to trigger an increase in primary production. These food webs were primarily based on terrestrially derived carbon before the hurricanes, but most taxa (including Atya and Xiphocaris shrimp, the consumers with highest biomass) shifted their food source to autochthonous carbon within 2 months of the hurricanes. We also found evidence that the hurricanes dramatically altered the structure of the food web, resulting in shorter (i.e., smaller food‐chain length), narrower (i.e., lower diversity of carbon sources) food webs, as well as increased trophic species packing. This study demonstrates how hurricane disturbance can alter stream food webs, changing the trophic base from allochthonous to autochthonous resources via changes in the physical environment (i.e., canopy defoliation). As hurricanes become more frequent and severe due to climate change, our findings greatly contribute to our understanding of the mechanisms that maintain forested stream trophic interactions amidst global change.
Morphological evolution of a complex drift‐aligned prograded barrier
Authors: Carvalho Rafael Cabral , Mueller Daniela , Reef Ruth 
Published: November 2023

AbstractPrograded barriers are coastal landforms with a worldwide distribution that provide a paleoenvironmental record within a sequence of successive ridges and intervening swales. Most barriers with variable terrestrial morphologies, also known as complex barriers, have been poorly studied. At the main entrance of Western Port, a bay in southeastern Australia, a morphologically complex barrier was formed as a function of its somewhat sheltered position and orientation in relation to sporadic swells and tidal circulation. LiDAR‐derived topography shows highly truncated and asymmetrical ridges both across and along the Somers–Sandy Point barrier plain. These uncommon morphologies are associated with an intricate hydrodynamic circulation subject to sporadic storms approaching at a sharp angle to the shoreline that eliminate a significant part of the sedimentary record but also redistribute vast quantities of sand to the downdrift shoreline, and a large and variable sandy bank that undergoes intense sediment movement. Optically stimulated luminescence (OSL) dating within a limited area on the western side revealed an age of ~2600 years for the innermost dated ridge, located about halfway across the plain. Significant erosion of the ridges' record occurred on the western side of the barrier between 2600 and 700 years ago and between 600 and 240 years ago, whereas undated ridges on the eastern side were preserved. This creates an opportunity for future research on past erosional events that would be of great value for coastal management and adaptation. Textural and elemental (XRF) sediment characteristics suggest that the type of material provided for barrier accretion remained the same throughout the late Holocene. Given the sustained growth of the barrier and other sandy parts of the bay, a net supply of marine sand from Bass Strait must have occurred. The proposed evolutionary model contributes to the understanding of the sediment budget for the bay as a whole.
Revisiting the puzzle of jumps in volatility forecasting: The new insights of high‐frequency jump intensity
Authors: Qu Hui , Wang Tianyang , Shangguan Peng , He Mengying 
Published: November 2023

AbstractMotivated by the puzzling null impact of high‐frequency‐based jumps on future volatility, this paper exploits the rich information content in high‐frequency jump intensity with a mark structure under the heterogeneous autoregressive framework. Our proposed model shows that harnessing jump intensity information from the marked Hawkes process leads to significantly superior in‐sample fit and out‐of‐sample forecasting accuracy. In addition to statistical significance evidence, we also illustrate the economic significance in terms of trading efficiency. Our findings hold for a variety of competing models and under different market conditions, underlying the robustness of our results.
Hedging pressure and oil volatility: Insurance versus liquidity demands
Authors: Nikitopoulos Christina Sklibosios , Thomas Alice Carole , Wang Jianxin 
Published: November 2023

AbstractThis study evaluates the dual role of hedging pressure (HP) in oil futures markets and analyses its effects on weekly oil volatility. We find that HP driven by hedgers' insurance demands is negatively related to volatility, while HP driven by speculators' short‐term liquidity demands is positively related to volatility. Oil volatility tends to be more responsive to speculators' short‐term liquidity demands than variations induced by hedgers' insurance demands. These channels are also significant determinants of volatility in inverted and normal markets, with the effects being more pronounced in inverted markets. Under low financial and business‐cycle risk environments, the two HP channels typically have a measurable impact on volatility. These opposing effects of HP on weekly volatility provide empirical support on the significance of the dual role of hedgers in oil markets, as price insurance seekers and as short‐term liquidity providers.
A tale of two contracts: Was the SHFE copper futures market disrupted by the listing of INE bonded copper futures?
Authors: Xiong Tao , Li Miao 
Published: November 2023

AbstractLeveraging tick‐by‐tick data, this study provides the first analysis of Shanghai International Energy Exchange (INE) bonded copper futures' performance in market quality and price discovery. In particular, we investigate the effects of the market opening (listing of INE bonded copper futures) on Shanghai Futures Exchange (SHFE) copper futures' market quality and price discovery. Our results show that the market quality and price discovery of INE bonded copper futures in the first year of the listing is not promising. Our synthetic control method results suggest that market openness does not significantly reduce SHFE copper futures' market quality in terms of activity, liquidity, and volatility. Moreover, market openness does not significantly reduce the SHFE copper futures' price discovery effectiveness. Overall, the performance of new INE bonded copper futures needs improvement, while its listing did not disrupt SHFE copper futures. Our results suggest that a dual‐contract mode is an alternative option for internationalization in China's commodity futures markets.
Exploration of the common pathogenic link between COVID‐19 and diabetic foot ulcers: An in silico approach
Authors: Cai Xueyao , Yang Ruijin , Shi Wenjun , Cai Yuchen , Ma Zhengzheng 
Published: November 2023

AbstractBackground and AimsThe Coronavirus Disease‐19 (COVID‐19) is posing an ongoing threat to human health. Patients of diabetic foot ulcer (DFU) are susceptible to COVID‐19‐induced adverse outcomes. Nevertheless, investigations into their mutual molecular mechanisms have been limited to date. In the present work, we tried to uncover the shared pathogenesis and regulatory gene targets of COVID‐19 and DFU.MethodsIn this study, we chose GSE161281 as the COVID‐19 data set, which contained severe acute respiratory syndrome coronavirus 2 infected human induced embryonic stem cell‐derived peripheral neurons (n = 2) with uninfected controls (n = 2). The GSE134431 designated as the DFU data set, comprising full‐thickness DFU (n = 13) and diabetic foot skin (n = 8) samples from diabetic patients. The differential expressed genes (DEGs) were identified from GSE161281 and GSE134431, and the common DEGs between COVID‐19 and DFU were extracted. Multifactor regulatory network and co‐expression network of the common DEGs were analyzed, along with candidate drug prediction.ResultsAltogether, six common DEGs (dickkopf‐related protein 1 [DKK1], serine proteinase inhibitor A3 [SERPINA3], ras homolog family member D [RHOD], myelin protein zero like 3 [MPZL3], Claudin‐11 [CLDN11], and epidermal growth factor receptor pathway substrate 8‐like 1 [EPS8L1]) were found between COVID‐19 and DFU. Functional analyses indicated that pathways of apoptotic and Wnt signaling may contribute to progression of COVID‐19. Gene co‐expression network implied the shared pathways of immune regulation and cytokine response participated collectively in the development of DFU and COVID‐19. A multifactor regulatory network was constructed integrating the corresponding microRNAs (miRNAs) and transcription factors. Additionally, we proposed potential drug objects for the combined therapy.ConclusionOur study revealed the shared molecular mechanisms underlying COVID‐19 and DFU. The identified pivotal targets and common pathways can provide new perspectives for further research and assist the development of management strategies in patients of DFU complicated with COVID‐19.
Analysis of entropy generation and activation energy in unsteady double diffusive flow over a stretching cylinder
Authors: Faisal Muhammad , Ahmad Iftikhar , Awan Muhammad Awais 
Published: November 2023

AbstractEntropy generation with activation energy has garnered worldwide attention from researchers due to its extensive applications in thermodynamic design, chemical engineering, and optimization processes. One of the primary reasons for focusing on entropy is the global energy crisis, driven by massive consumption against limited resources. This study elucidates the double diffusion process in the dynamics of a viscous fluid over a stretching cylinder, incorporating considerations of entropy generation and activation energy. The non‐Fourier heat flux model is employed to describe the thermodynamics of the thermal system, while non‐Fick's law is used to elucidate the mass diffusion process. The unsteady phases of axisymmetric flow of the viscous fluid are thoroughly discussed. Transport equations in cylindrical configuration are transformed into ordinary differential equations, and an efficient mathematical method (i.e., homotopy analysis method) is applied to solve the transformed system. The graphical examination reveals the impact of flow parameters on velocity configuration, entropy configuration, temperature configurations, and concentration configurations. Additionally, a comparative benchmark is established with the results from previously published work for authentication and validation purposes. It is noted that concentration and temperature configurations are directly related to the unsteady stretching parameter. Entropy generation exhibits an inverse relationship with the unsteady stretching parameter when close to the stretching cylinder, whereas it shows a direct relationship when the fluid is flowing away from the surface.
Do institutional quality and its threshold matter in the sensitivity of the renewable energy transition to financial development? New empirical perspectives
Authors: Olaniyi Clement Olalekan , Al‐Faryan Mamdouh Abdulaziz Saleh , Ogbaro Eyitayo Oyewunmi 
Published: November 2023

AbstractThe transition to renewable energy is critical for environmental sustainability, consistent with sustainable development goals (SDGs) 7, 8, 11, 12, and 13 of the United Nations Development Programme (UNDP). Scholars have identified financial development and institutional quality as significant factors determining the renewable energy transition in developing countries. This study opines that the efficiency of the financial system in supporting and providing the substantial financial implications that a switch to renewable energy necessitates depends on the quality of the institutional framework. Weak institutions in developing countries produce loopholes and inherent flaws in the financial system that facilitate corruption and opportunism, ultimately promoting dirty energy usage and technology at the expense of renewable energy. This process suggests that the interaction between financial development and institutions can either accelerate or impede the transition to renewable energy, depending on an economy's institutional architecture. Considering Africa's enormous renewable energy resources, previous research has overlooked the implications of the interplay between institutional quality and financial development in spurring Africa's transition to renewable energy. Thus, this study looks at the role of institutions in moderating the relationship between financial development and renewable energy in Africa from 1990 to 2019, using first‐ and second‐generation estimators to capture econometrics' pitfalls such as endogeneity, cross‐sectional dependence, and heterogeneity inherent in the panel dataset. This study departs from previous research in that it uses a dynamic panel threshold to determine the threshold of institutions beyond which financial development is stimulated to spur Africa's transition to renewable energy. The findings show that institutions create loopholes that allow rent‐seeking, opportunism, and sharp practices in the African financial system. These inherent flaws divert financial resources to support dirty energy and undermine the financial sector's ability to support a renewable energy transition on the continent. Also, the findings from the threshold of institutions affirm that African countries operate predominantly below the threshold of institutions, over which institutions enable financial development to expedite the continent's transition to renewable energy. The study suggests that institutional quality is essential in the relationship between financial development and Africa's shift to renewable energy. The findings' policy implications are discussed and outlined.
Behavioural explanations of Expectile VaR forecasting and dynamic hedging strategies for downside risk during the COVID‐19 pandemic: Insights from financial markets
Authors: Trichilli Yousra , Gaadane Sahbi , Boujelbène Abbes Mouna , Masmoudi Afif 
Published: November 2023

AbstractIn this paper, we investigate the influence of confirmation bias on Expectile Value at Risk (EVaR) forecasting among fundamentalist, optimistic, and pessimistic investors in cryptocurrency, commodity, and stock markets before and during the COVID‐19 pandemic. Utilizing the DCC‐range GARCH model, we also explore the conditional minimum downside risk hedge ratios. Our findings demonstrate that confirmation bias leads to excessive EVaR for financial market returns, regardless of the period being before or during COVID‐19. Moreover, fundamentalists' expectations in all markets remain constant, while without confirmation bias, optimists' and pessimists' expectations tend to converge to zero over time but diverge significantly during turbulent periods. When confirmation bias is present, the average distance between these expectations widens. Analysing the hedge ratio results, with or without confirmation bias, also unveils the conditional minimum downside risk hedge ratios. These ratios indicate the optimal proportions for hedging downside risk in each financial market during different periods. We find that the conditional minimum downside risk hedge ratios are generally lower (higher) during the pre‐COVID‐19 (COVID‐19) period, implying that hedging costs are higher during the COVID‐19 period. These insightful findings offer valuable insights for traders and regulators in identifying and understanding the risk conditions of cryptocurrency, commodity, and stock markets. Additionally, the analysis of conditional minimum downside risk hedge ratios provides investors with essential information on how to strategically position their portfolios to mitigate and manage risk during both tranquil and turbulent market conditions, with and without confirmation bias.
Complete transverse transection of the normal‐sized non‐pregnant uterus associated with wearing a safety belt in abdominal blunt trauma: Narrative review and case study
Authors: Srisukho Sasivimol , Chandacham Kamtone , Tongsong Theera 
Published: November 2023

AbstractThis review and case study illustrates a patient with a complete transverse transection of a non‐pregnant uterus caused by blunt trauma associated with wearing a safety belt. The 31‐year‐old patient, who had a previous cesarean section, presented with impending hypovolemic shock caused by intra‐abdominal hemorrhage secondary to blunt trauma while wearing a safety belt. On physical examination, a transverse straight line of ecchymosis along the line of a fastened safety belt was noted without any other external injury. The operative findings revealed a complete transverse transection which had cut through the lower part of the non‐pathological, normal‐sized uterus with active bleeding and mild injury to the small bowel without active bleeding. Total hysterectomy and simple closure of the small bowel were performed with successful outcomes. We hypothesize that transection was caused by the enormous pressure produced by blunt trauma transmitted through the abdomen by the fastened safety belt and the weakness of the uterine wall caused by the previous low transverse cesarean section which facilitated the separation and extension to the entire wall. In conclusion, this case study provides the following learning points: (1) Enormous forces produced by a fixed fastened safety belt during a car accident can cause complete transverse transection of a normal‐sized, non‐pathological uterus, leading to life‐threatening intra‐abdominal hemorrhage. (2) A previous cesarean section may potentiate the transection, especially when the uterus is repositioned above the pelvic brim. (3) The gynecologic condition should also be included in the differential diagnoses in cases of intra‐abdominal hemorrhage. If highly suspected, gynecologists should be notified for early recognition and avoidance of delayed actions.