bluuebunny/crossref_metadata_2025 huggingface dataset:
The Leveraging of Support by Faith-Based Social Groups in Rural Villages of the Federal Capital Territory, Nigeria
Authors: Morse Stephen , McNamara Nora , Nathan Nancy , Adamu Shuaibu , Micah Oluwayemisi Idowu , Kabir Muhammed , Onwuaroh Augustine Sunday , Otene Nathaniel
Published: September 2023

Social networks and social groups are often regarded as being important elements of social capital. The research set out in this paper is designed to explore whether social groups in villages located close to the Nigerian capital city of Abuja seek to lever benefits from the connections (networks) they may have with the government and others in that city. Of special interest is whether there is a significant difference between secular and faith-based social groups in terms of the leveraging of such support. The research builds upon a previous study that employed a questionnaire-based survey of 26 social groups spanning two area councils (ACs; Bwari and Kwali) in the Federal Capital Territory of Nigeria followed by a series of in-depth interviews with leaders of the groups (e.g., chairperson, secretary, and treasurer) to explore the findings. The results were analysed using regression and suggest that most groups (14) had sought to lever support from their connections in Abuja. Those more likely to leverage support were registered with their respective ACls, a requirement for accessing credit from formal lenders, and tended to be smaller in size in terms of membership. There was also some suggestion that leverage was more likely with male social groups than female ones. Registration with an AC was more likely for secular groups than religious ones. Religious-based groups in the villages did not see their activities as being ‘project orientated’ and instead regarded their role as being in community support. Social groups cannot be thought of as static and exclusive and the diversity of such groups at the village scale is a source of strength for their communities. The results have important ramifications for those institutions, especially faith-based ones, wishing to work with social groups to help in the design and implementation of development initiatives.
Correction: Shi et al. Dynamic Scenario Simulations of Sustainable Rural and Towns Development in China: The Case of Wujiang District. Sustainability 2023, 15, 8200
Authors: Shi Qingwei , Li Zhiguo , Xu Yu , Yan Tiecheng , Chen Mingman
Published: September 2023

In the original publication [...]
Enhancing Environmental Sustainability: Stakeholder Pressure and Corporate CO2-Related Performance—An Examination of the Mediating and Moderating Effects of Corporate Decarbonization Strategies
Authors: Seroka-Stolka Oksana
Published: September 2023

Climate change mitigation and the imperative to reduce carbon dioxide (CO2) remain significant challenges. The primary source of this problem and a crucial aspect of its resolution lie in carbon-intensive companies responsible for emitting substantial quantities of anthropogenic carbon dioxide. Many polluting companies, such as energy producers, have been forced to take actions to adopt effective strategies and achieve better performance to mitigate emissions. This is also a result of pressure from stakeholders that is exerted on companies to decrease their carbon dioxide pollution. Therefore, this study focuses on two research questions: How does stakeholder pressure impact CO2-related performance? Do decarbonization strategies mediate and moderate the relationship between stakeholder pressure and CO2-related performance in companies? Thus, the aim of this study is to investigate the relationship between stakeholder pressure for reducing carbon dioxide emissions and corporate CO2-related performance, and to test the impact of adopting decarbonization strategies on corporate CO2-related performance. Additionally, we examine the mediating and moderating effects of decarbonization strategy adoption on the relationship between stakeholder pressure and corporate CO2-related performance. This study was conducted on a sample of 122 energy producers in Poland. To test the hypotheses, linear multiple regression analysis was employed. The findings reveal a positive relationship between stakeholder pressure and the adoption of decarbonization strategies, as well as CO2-related performance. Furthermore, the results confirm the mediating effect of decarbonization strategy, while the moderating effect of decarbonization strategies remains unproven. The results have important practical implications for managers, who are required to identify stakeholders’ demands related to CO2 emissions. Based on this, they should implement active strategies to achieve better CO2-related performance and minimize their carbon footprint.
Spatial Analysis of COVID-19 Pandemic Impacts on Mobility in Madrid Region
Authors: Al-Akioui Abid , Monzon Andres
Published: September 2023

After three years of COVID-19 lockdown and restrictions, mobility seems to have returned to normality. However, the pandemic has left changes in the mobility patterns of the Madrid Region produced by new trends emerging from COVID-19. This paper analyzes these changes, focusing on the impacts on public transport use, the effects of telematic activities and the influence of home relocation. The basis of the analysis is a survey conducted from November to December 2022, with more than 15,000 valid responses. The results show that public transport lost 6% of trips. These trips have different transfer rates depending on their geographic location. In the City Center, the majority transferred to active modes. However, the car attracted most of these trips in the Metropolitan Ring. These changes in mobility patterns are partly a consequence of the increase in telematic activities. Teleworking has increased by more than 20% in the Madrid Region and has caused changes in trips per week and trip purpose. In addition, teleworking has caused 18% of home relocations to peripheral zones of the region. This paper investigates through statistical analysis which sociodemographic and spatial factors explain the differences in mobility impacts throughout the zones of the Madrid Region.
Decarbonization of the Food Industry—The Solution for System Design and Operation
Authors: Meitz Sarah , Reiter Jana , Fluch Jürgen , Tugores Carles Ribas
Published: September 2023

Digital transformation in industry is seen as a key technology enabling decarbonization. It is obvious that measures to increase the energy efficiency and integration of renewable energy technologies must be fostered, and in most cases, these measures need a smart combination of several solution pathways. This results in a significant increase in both the design and operation complexity of these systems. However, there is no clear guidance regarding optimized systems. This work presents a standardized methodology enabling the optimized management of the demand and supply side of an industrial process towards decarbonization. The methodology is presented and showcased based on examples from the food industry and demonstrates how to realize energy efficiency measures and the integration of renewable energy by combining the supply side (SS) and demand side (DS) of industrial processes. The results show that data availability and individualized modeling are major challenges in implementing the methodology. To show the impact of optimization, well-selected key performance indicators (KPIs) are a proper means of evaluation and validation, but it is important to select them on purpose. Therefore, future research should focus on efficient data acquisition, expanding expertise, standardized modeling tools, and KPI definitions.
Feasibility Assessment of a Magnetic Layer Detection Method for Field Applications
Authors: Li Chenhui , Liu Liang , Huang Mingbin , Shi Yafang
Published: September 2023

The lack of current data on the spatial distribution of soil erosion hinders the ability to predict soil erosion on slopes. To address this problem, we present a simple and sensitive soil erosion measurement method called the magnetic layer detection (MLD) method. This method can measure the changes in soil layer thickness (SLT) at a site featuring a pre-buried magnetic layer (ML) using the relationship between magnetic susceptibility and soil thickness, and then use this information to determine the erosion or accumulation at that point. To verify the adaptability and accuracy of this method, we designed three field tests. First, we conducted a simulated sediment siltation experiment using the erosion pin (EP) method as the control. This experiment demonstrated the accuracy of the MLD method for measuring SLT (Rad2 = 0.97, NSE = 88.14%, and RMSE = 1.17 mm). Next, a simulated rainfall experiment with the runoff plot (RP) method as a control was used to demonstrate the effectiveness of the MLD method under water erosion. The results demonstrated that this method can reliably estimate soil erosion on both bare plots (Rad2 = 0.83, NSE = 71.78%, and RMSE = 0.56 mm) and sparse grass plots (Rad2 = 0.90, NSE = 81.77%, and RMSE = 0.25 mm), with performance that is better than that of the traditional EP method. Finally, a soil scouring experiment, again with the RP method as a control, was designed to verify whether the MLD method could accurately measure the erosion of a slope after the soil was scoured by surface runoff. The MLD method could accurately measure the slope erosion (Rad2 = 0.91, NSE = 89.55%, and RMSE = 0.42 mm), with results superior to those of the traditional EP method. The MLD method’s results were similar to those from the laser scanner (LS) method, but more accurate and with less associated cost and data processing time. Therefore, the MLD method has potential as a reliable measurement method that can provide useful guidance for elucidating the spatial distribution of soil erosion and predicting slope soil erosion. This approach could be used to obtain raw data to quantify soil erosion on the Loess Plateau of China and beyond.
Interactive Approach for Innovation: The Experience of the Italian EIP AGRI Operational Groups
Authors: Arzeni Andrea , Giarè Francesca , Lai Mara , Lasorella Maria Valentina , Ugati Rossella , Vagnozzi Anna
Published: September 2023

The interactive approach implies that a heterogeneous group of actors cooperates to identify, develop, and introduce innovative solutions on the ground. Twenty-year studies have shown this approach to be the most suitable to support innovation and knowledge sharing in the agri-food system. The present study aims to analyse how the interaction process works in the implementation of OGs in Italy, and its effectiveness, given the relevance assigned to EIP AGRI as a driver for innovation in the past and the current CAP programming periods. An online survey submitted to 270 OGs and 10 in-depth case studies were used to analyse the interaction process and verify whether a common implementation pattern can be identified. The results show that the implementation of OGs in Italy helped capture the real issues of farmers/rural entrepreneurs and support the creation and strengthening of relationships between partners. However, low levels of internal and external communications and the lack of efforts to disseminate the results reduced the effectiveness of the groups. The study showed how complex it is to describe the processes triggered by the interactive approach, being that it is influenced by the type of relationships existing between partners and by other external factors. The implementation of the next generation of OGs could be strengthened by improving their capacity to address the issues of large groups of farmers, promoting the presence of intermediaries to dialogue between partners and facilitating the active participation of advisors.
Durable Structural Concrete Produced with Coarse and Fine Recycled Aggregates Using Different Cement Types
Authors: Vintimilla Carla , Etxeberria Miren , Li Zongyang
Published: September 2023

The durability properties of structural recycled aggregate concrete (RAC) produced with 50% coarse recycled concrete aggregates and up to 20% fine recycled concrete aggregates were analysed and compared to those of conventional concrete (NAC). Both the RAC and NAC mixtures achieved the same compressive strength when using an effective water–cement ratio of 0.47 and 0.51, respectively. All the concretes were produced using three types of cement: CEM II A/L 42.5 R, CEM II A/S 42.5 N/SRC and CEM III/B 42.5 N-LH/SR. The properties of drying shrinkage, chloride permeability, and accelerated carbonation coefficient of the concretes were determined experimentally, and the obtained results were compared with the values estimated by specific standards of exposure to XC1–XC4 (corrosion induced by carbonation can happen due to the presence of humidity) and XS1 (corrosion caused by chlorides from seawater) environments. The results showed that all the concretes achieved maximum drying shrinkage for use in structural concrete. Any concretes produced with CEM IIIB, including the RAC-C50-F20 concrete, achieved very low chloride ion penetrability, ranging between 500 to 740 Coulombs. In addition, all concretes manufactured with CEM IIAL and CEM IIAS, including RAC-C50-F20, were suitable for use in XC3 and XC4 exposure environments, both with 50- and 100-year lifespans.
The Blue Tansy Essential Oil–Petra/Osiris/Molinspiration (POM) Analyses and Prediction of Its Corrosion Inhibition Performance Based on Chemical Composition
Authors: Zriouel Wafaa , Bentis Aziz , Majid Sanaa , Hammouti Belkheir , Gmouh Said , Umoren Peace S. , Umoren Saviour A.
Published: September 2023

Sustainable materials encompass a diverse range of substances used in both consumer and industrial domains. These materials are sourced in quantities that safeguard non-renewable resources and environmental equilibrium, with a focus on bio-based alternatives derived from plants. This study investigates the corrosion inhibition potential of two distinct Blue Tansy essential oils (BTES 1 and BTES 2) with varying chemical compositions. Corrosion resistance for mild steel in 1 M HCl environment was assessed using weight loss and Potentiodynamic polarization techniques. The evaluation of BTES 1 and BTES 2 revealed compelling insights. Notably, their inhibition efficiency exhibited an intriguing, damped oscillation pattern with fluctuating concentrations. Remarkably, at 0.5 g/L concentration, BTES 1 achieved an impressive 80% inhibition, while BTES 2 demonstrated a substantial 70% inhibition at 2.5 g/L. This behavior stems from intricate interactions among active compounds, leading to protective film formation and competitive adsorption effects. Importantly, congruence between weight loss measurements and potentiodynamic polarization curves fortified the reliability of outcomes. The study also confirmed BTES as a mixed-type inhibitor, as indicated by polarization curves. Furthermore, Petra/Osiris/Molinspiration (POM) analyses were conducted to unravel molecule interactions, elucidate toxicity risks, and assess bioactivity scores. This comprehensive exploration sheds light on the interplay between sustainable materials, corrosion inhibition efficacy, and complex molecular dynamics, enhancing our understanding of environmentally conscious corrosion prevention strategies.
Causal Analysis of Safety Risk Perception of Iranian Coal Mining Workers Using Fuzzy Delphi and DEMATEL
Authors: Hannani Mitra , Bascompta Marc , Sabzevar Mojtaba Gerami , Dehghani Hesam , Khajevandi Ali Asghar
Published: September 2023

Underground coal mines, one of the most dangerous work environments, have experienced accidents and disasters. One of the main reasons for those unsafe events is the workers’ poor understanding of the hazards and risks of working in this work environment. Therefore, the present study aims to identify factors affecting the safety risk perception of underground coal mine workers in Iran and investigate their cause-and-effect relationships. By reviewing the literature, 40 variables were identified in five categories: individual, organizational, environmental, task, and external factors. The identified variables were ranked according to the expert group’s opinion in the form of a fuzzy Delphi study regarding their effects on risk perception. In the next step, 23 variables were selected to investigate the cause-and-effect relationships using the DEMATEL method. The study’s findings showed that organizational factors and some individual factors play a fundamental role in workers’ risk perception. The variables of safety culture, safety management style, and safety attitude had the most significant impact, and the variables of personal protective equipment and risk aversion had the smallest impact on workers’ risk perception. The present study’s findings can be used as a guideline to provide effective solutions for managers and workers in improving safety risk perception, subsequently reducing unsafe behaviors and increasing the safety status of underground coal mines.
Study on Large Deformation Characteristics and Secondary Lining Supporting Time of Tunnels in Carbonaceous Schist Stratum under High Geo-Stress
Authors: Tan Yinjun , Chen Binke , Liu Zheng
Published: September 2023

The deformation characteristics and the timing for secondary lining support in high geo-stress soft rock tunnels have drawn significant attention. In carbonaceous shale formations, tunnel construction deformations are very pronounced under construction disturbances due to the development of joints, dense fractures, and poor interlayer bonding. With the Xishuangbanna tunnel as our research backdrop, this study meticulously analyzed the deformation patterns and characteristics inherent to high geo-stress tunnels constructed within carbonaceous schist formations. Employing a comprehensive approach involving full displacement analysis and on-site construction mechanics testing, we utilized the displacement release rate and structural safety factors as key indicators to determine the secondary lining supporting time. Employing this innovative approach, we successfully identified the ideal junctures for implementing secondary lining support in tunnels excavated through high geo-stress carbonaceous schist. The research findings indicate that the primary damage modes in high geo-stress carbonaceous schist tunnels are initial support failure and extensive early support deformation. These vulnerabilities are primarily attributed to weak and fragmented strata, elevated ground stress levels, and inadequate support strength. During the early stages of tunnel construction, substantial deformations are observed, exhibiting high rates of change. Horizontal convergence, notably, significantly surpasses the settlement at the tunnel’s crown. When employing the three-bench method for construction, the deformation occurring before the excavation of the middle bench contributes the most to the total deformation monitored, whereas the deformation generated after the excavation of the inverted arch constitutes a minor proportion. The tunnel’s crown and invert experience tension while the secondary lining undergoes compression. The internal forces are most significant at the tunnel’s hance and knee, with the left tunnel knee being the weakest section of the secondary lining. The findings of our study are poised to guide the design and execution of tunnels constructed within high geo-stress carbonaceous schist formations.
Performances Analysis of Three Grid-Tied Large-Scale Solar PV Plants in Varied Climatic Conditions: A Case Study in Algeria
Authors: Fezzani Amor , Guermoui Mawloud , Kouzou Abdellah , Hafaifa Ahmed , Zaghba Layachi , Drid Said , Rodriguez Jose , Abdelrahem Mohamed
Published: September 2023

Currently, for the determination of the suitable and optimal PV power plant according to the climate conditions of the concerned region, researchers focus on the estimation of certain performance factors, which are reported to be the key parameters for the analysis of the performances of grid-connected photovoltaic (PV) power systems. In this context, this paper focuses on on-site real-time analysis of the performance of three solar photovoltaic plants: Sidi-bel-Abbés (12 MWp), Laghouat (60 MWp), and Ghardaïa (1.1 MWp). These plants are located in different regions experiencing diverse climatic conditions in Algeria. The analysis was carried out by the standardized norms of IEC 61724, using monitoring data collected over one year. The photovoltaic power plants were evaluated in terms of performance factors, such as the reference yield (Yr), final yield (Yf), performance ratio (PR), and capacity factor (CF). On the other side, based on real data collected at the concerned sites, two linear functions depending on solar irradiance and the PV module temperature for each site are proposed for the evaluation of the generated alternative power output (PAC) for the three PV plants. The obtained results based on the study presented in this paper can help designers of PV power plants of different technologies and different climate conditions to precisely decide the convenient technology that allows the best production of the electrical energy for grid-tied PV systems. Furthermore, this study can contribute in giving a clear vision of the implementation of upcoming large-scale solar PV power plants in Algeria within the studied area and other areas.
Spatio-Temporal Pattern of Groundwater Nitrate-Nitrogen and Its Potential Human Health Risk in a Severe Water Shortage Region
Authors: Mi Wujuan , Zhang Minghua , Li Yuan , Jing Xiaoxuan , Pan Wei , Xing Xin , Xiao Chen , He Qiusheng , Bi Yonghong
Published: September 2023

Groundwater nitrate-nitrogen (GNN) has been one of the most widespread pollutants. However, there is still a poor understanding of GNN pollution and its potential effects on human health. In this study, GNN in Taiyuan, a region of severe water scarcity in northern China, was tracked from 2016 to 2020; the spatio-temporal distribution characteristics of GNN were demonstrated and the potential human health risks to infants, children, and adults were assessed. The results showed that the concentration of GNN varied from 0.1 to 43.3 mg L−1; the highest mean concentration was observed in 2016 and the lowest value appeared in 2020. GNN concentration declined over time, which was closely related to the proactive environmental policies of Tiyuan city. GNN levels were considerably greater in urban areas than in rural areas (p < 0.001), and the forest had a very low level of GNN, which was significantly different from the grassland, farmland, and construction land (p < 0.001). According to the hazard quotient, the impacts of GNN on human health revealed age specificity, namely in the order of infants > children > adults. It was concluded that the interception effect of the forest could effectively alleviate groundwater pollution pressures, and more forest land is necessary for human health risk prevention in the severe water shortage areas to alleviate GNN pollution.
The Associations of Spirituality, Adversity Quotient and Ethical Decision Making of Accounting Managers in the Contexts of Financial Management and Corporate Social Responsibility
Authors: Pong Hok-Ko , Fong Chun-Cheong
Published: September 2023

The objectives of this study are to explore the associations and interactions of spirituality, the adversity quotient (AQ), and the ethical decision making (EDM) of accounting managers in the contexts of financial management and corporate social responsibility. Additionally, the study aims to evaluate the predictive roles of spirituality and the adversity quotient (AQ) on their ethical decision making. A self-administered questionnaire was utilised to collect data from 510 accounting managers via the quantitative approach. The research results provide empirical evidence that the spiritual wellbeing (SWB) and AQ of accounting managers are positively correlated with EDM. In particular, the personal–communal domain of SWB is a significant predictor of moral equity, contractualism, egoism and deontology, whilst the environmental domain of SWB is a significant predictor of contractualism, utilitarianism, egoism and deontology. In terms of demographics, religion is a significant predictor of moral equity and deontology, whilst the origin and ownership dimension of AQ is a significant predictor of moral equity, contractualism, egoism and deontology. The control and reach dimensions of AQ are a significant predictor of moral equity respectively. Overall, individual characteristics, personal values, beliefs, interpersonal relationships and the environmental domain of SWB significantly influence EDM among accounting managers.
Navigating Unpleasant Interactions: The Influence of Customer Mistreatment on Hospitality Employee Responses Employing Mindfulness as a Moderator
Authors: Yin Jie , Ni Yensen , Fan Yangchu , Chen Yuhsin
Published: September 2023

Customer mistreatment may be an unavoidable issue for the hospitality industry. Based on the Pressure–State–Response (PSR) framework, this study investigates the process of employees’ pressure, state, and responses to customer mistreatment with the moderation of mindfulness. By using structure modeling equation techniques, we find that employees with high levels of mindfulness can mitigate the impact of customer mistreatment on emotional exhaustion; however, this study unexpectedly found that mindfulness can enhance the impact of emotional exhaustion on turnover intention. This study concludes that instead of conflicting with customers, resulting in their emotional exhaustion, these employees with mindfulness may deal with customer emotions, avoiding the immediate negative impact of customer mistreatment, which is beneficial for hospitality enterprises, particularly given the present state of competition in the industry. Even so, we find that these employees with high-level mindfulness may recognize reality rather than become confused in such circumstances and may choose to leave to find a new job. As such, there is still room for future research into ways to cope with customer mistreatment without increasing the turnover intention of such employees.
Does Digital Infrastructure Improve Urban Economic Resilience? Evidence from the Yangtze River Economic Belt in China
Authors: Zhang Jifeng , Yang Zirui , He Bing
Published: September 2023

Under the pressure exerted by COVID-19 and geopolitical conflicts, establishing how to enhance urban economic resilience and cope with external risks has become the focus of many studies. This study considers the “Broadband China” program as a quasi-natural experiment and uses panel data from 106 Chinese cities between 2011 and 2020 to explore the influence of digital infrastructure on urban economic resilience through a difference-in-differences (DID) approach. The results are as follows: (1) Digital infrastructure improves urban economic resilience, and the influence differs by time and region. (2) Economic vitality, industrial structure upgrading, and industrial structure rationalization either moderate or mediate the impact of the digital infrastructure on economic resilience. Our findings contribute to a better understanding of how digital infrastructure and economic resilience are related.
Research on Green Supply Chain Formation and Government Subsidy Pricing Strategy Considering an Online Trading Platform
Authors: Gao Wentao , Zhang Hao , Lu Jianfeng , Han Tiaojuan
Published: September 2023

Low-carbon production is currently the development direction of enterprises. The government provides low-carbon subsidies to low-carbon manufacturing enterprises to promote the formation of a green supply chain. To better encourage the development of the green supply chain by determining government subsidies and platform authentication fees, this paper constructs a Stackelberg game model that consists of a supplier and a manufacturer, and solves the optimal decisions of each entity using the backward induction method. This study uses the matching method to analyze the payoff matrix for supply chain members when choosing between low-carbon and traditional production. After introducing the online trading platform, the impact of the platform on the profit of supply chain members is studied, considering whether the authentication service provided by the platform is completely accurate. The results show that (1) in the green supply chain, there is a relationship between the enterprises’ profit and the level of emissions reduction, which increases first and then decreases. (2) The online trading platform is conducive to achieving green supply chain coordination. The government can pay fewer subsidies to prompt the formation of a green supply chain and the optimal emissions reduction level of the enterprise is higher. (3) When the authentication mechanism of the platform is imperfect, the authentication fee of the platform and the subsidy coefficient of the government need to be set within a reasonable range to avoid the enterprise adopting traditional production pretending to be the low-carbon type. This study contributes to research on the green supply chain and provides insights into pricing strategies for governments and platforms.
Fixed-Point Theorems on Fuzzy Bipolar b-Metric Spaces
Authors: Ramalingam Balaji , Ege Ozgur , Aloqaily Ahmad , Mlaiki Nabil
Published: September 2023

In this manuscript, we establish some fixed-point theorems without continuity by using the triangular property on a fuzzy bipolar b-metric space as a generalized version and expansion of the well-known results. We also provide some examples and applications of the integral equation to the solution for our main results.
Radiomics and Its Feature Selection: A Review
Authors: Zhang Wenchao , Guo Yu , Jin Qiyu
Published: September 2023

Medical imaging plays an indispensable role in evaluating, predicting, and monitoring a range of medical conditions. Radiomics, a specialized branch of medical imaging, utilizes quantitative features extracted from medical images to describe underlying pathologies, genetic information, and prognostic indicators. The integration of radiomics with artificial intelligence presents innovative avenues for cancer diagnosis, prognosis evaluation, and therapeutic choices. In the context of oncology, radiomics offers significant potential. Feature selection emerges as a pivotal step, enhancing the clinical utility and precision of radiomics. It achieves this by purging superfluous and unrelated features, thereby augmenting model performance and generalizability. The goal of this review is to assess the fundamental radiomics process and the progress of feature selection methods, explore their applications and challenges in cancer research, and provide theoretical and methodological support for future investigations. Through an extensive literature survey, articles pertinent to radiomics and feature selection were garnered, synthesized, and appraised. The paper provides detailed descriptions of how radiomics is applied and challenged in different cancer types and their various stages. The review also offers comparative insights into various feature selection strategies, including filtering, packing, and embedding methodologies. Conclusively, the paper broaches the limitations and prospective trajectories of radiomics.
Measures for the Prevention of Mother-to-Child Human T-Cell Leukemia Virus Type 1 Transmission in Japan: The Burdens of HTLV-1-Infected Mothers
Authors: Uchimaru Kaoru , Itabashi Kazuo
Published: September 2023

The main mode of mother-to-child transmission of the human T-cell leukemia virus (HTLV)-1 is through breastfeeding. Although the most reliable nutritional regimen to prevent HTLV-1 transmission is exclusive formula feeding, a recent meta-analysis revealed that short-term breastfeeding within 90 days does not increase the risk of infection. The protocol of the Japanese Health, Labor, and Welfare Science Research Group primarily recommended exclusive formula feeding for mothers who are positive for HTLV-1. However, there has been no quantitative research on the difficulties experienced by HTLV-1-positive mothers in carrying out these nutritional regimens, including the psychological burden. Therefore, this review was performed to clarify the burdens and difficulties encountered by mothers who are positive for HTLV-1; to this end, we analyzed the data registrants on the HTLV-1 career registration website “Carri-net” website. The data strongly suggest that it is not sufficient to simply recommend exclusive formula feeding or short-term breastfeeding as a means of preventing mother-to-child transmission; it is important for health care providers to understand that these nutritional regimens represent a major burden for pregnant women who are positive for HTLV-1 and to provide close support to ensure these women’s health.
Exploring Conformational Landscapes and Cryptic Binding Pockets in Distinct Functional States of the SARS-CoV-2 Omicron BA.1 and BA.2 Trimers: Mutation-Induced Modulation of Protein Dynamics and Network-Guided Prediction of Variant-Specific Allosteric Binding Sites
Authors: Verkhivker Gennady , Alshahrani Mohammed , Gupta Grace
Published: September 2023

A significant body of experimental structures of SARS-CoV-2 spike trimers for the BA.1 and BA.2 variants revealed a considerable plasticity of the spike protein and the emergence of druggable binding pockets. Understanding the interplay of conformational dynamics changes induced by the Omicron variants and the identification of cryptic dynamic binding pockets in the S protein is of paramount importance as exploring broad-spectrum antiviral agents to combat the emerging variants is imperative. In the current study, we explore conformational landscapes and characterize the universe of binding pockets in multiple open and closed functional spike states of the BA.1 and BA.2 Omicron variants. By using a combination of atomistic simulations, a dynamics network analysis, and an allostery-guided network screening of binding pockets in the conformational ensembles of the BA.1 and BA.2 spike conformations, we identified all experimentally known allosteric sites and discovered significant variant-specific differences in the distribution of binding sites in the BA.1 and BA.2 trimers. This study provided a structural characterization of the predicted cryptic pockets and captured the experimentally known allosteric sites, revealing the critical role of conformational plasticity in modulating the distribution and cross-talk between functional binding sites. We found that mutational and dynamic changes in the BA.1 variant can induce the remodeling and stabilization of a known druggable pocket in the N-terminal domain, while this pocket is drastically altered and may no longer be available for ligand binding in the BA.2 variant. Our results predicted the experimentally known allosteric site in the receptor-binding domain that remains stable and ranks as the most favorable site in the conformational ensembles of the BA.2 variant but could become fragmented and less probable in BA.1 conformations. We also uncovered several cryptic pockets formed at the inter-domain and inter-protomer interface, including functional regions of the S2 subunit and stem helix region, which are consistent with the known role of pocket residues in modulating conformational transitions and antibody recognition. The results of this study are particularly significant for understanding the dynamic and network features of the universe of available binding pockets in spike proteins, as well as the effects of the Omicron-variant-specific modulation of preferential druggable pockets. The exploration of predicted druggable sites can present a new and previously underappreciated opportunity for therapeutic interventions for Omicron variants through the conformation-selective and variant-specific targeting of functional sites involved in allosteric changes.
A Field Investigation of Stability Characteristics of Pressure Fluctuation and Vibration in Prototype Pump Turbine at Multiple Working Points
Authors: Hu Haiping , Xia Ming , Song Xianghui , Zhao Weiqiang , Wang Wei , Wang Zhengwei
Published: September 2023

In practical operation, pump turbines typically operate far from their designed working points, which has a significant impact on the stability of the unit’s operation. In this paper, we conducted a field test to investigate the stability characteristics of prototype pump turbines at different working points. By adjusting the given power of the generator in a stepwise manner to control its working point, we obtained the statistical and spectral characteristics of pressure signals and acceleration signals. In turbine mode, the result shows that, at low, medium, and high power, the variation in pressure fluctuation characteristics is influenced by three different factors, while vibration generally reaches its maximum value at approximately 50 MW. In pump mode, variations in pressure were observed among different measurement points in the low-frequency range, and the characteristics of vibration acceleration were influenced by both the rotor–stator interaction (RSI) and the structural modal frequencies. We emphasized that the high-frequency bands have influences on the unit comparable in magnitude to those of the rotor–stator interaction, which has rarely been mentioned in previous studies. Through detailed testing and analysis of the unit’s actual operation, we can gain a better understanding of its behavior and performance in the turbine and pump modes, and these results hold significant importance for ensuring the stability and reliability of the unit.
Shear Strength of Loess in the Yili Region and Corresponding Degradation Mechanisms under Different Cycling Modes
Authors: Zhang Yongliang , Zhang Zizhao , Hu Wanhong , Zhang Yanyang , Shi Guangming , Wang Yamei
Published: September 2023

In the Yili region, China, complex environmental conditions induce repeated wet–dry (WD) and freeze–thaw (FT) cycles, deteriorating soil shear strength and producing frequent loess landslides. In this study, we collected soil samples from the Alemale landslide, Yili Prefecture and performed their triaxial shear tests with different numbers of WD, FT, and WD-FT cycles. In addition, we summarized the change mechanisms of loess mechanical properties and its deterioration, in the Yili region, under different cyclic effects. Subsequently, the test results under the three cycling modes were compared and analyzed, the differences in the deterioration effects of different cyclic conditions on loess were discussed in depth, and finally, a multiple linear regression model was established and the weights of single factors under the action of coupled cycles were analyzed. The results show the following: (1) Regardless of the confining pressure values, the principal stress evolution trends in soil samples under different cycling modes were generally consistent, i.e., after an initial increase, peak values were reached, followed by a final decline. (2) Under unconsolidated undrained (UU) conditions, shear strength values of all soil samples tested under the three cycling modes dropped after the first twenty cycles, exhibiting different evolution patterns. (3) Coupled WD-FT cycling most significantly promoted soil shear strength degradation, with less WD cycling effect, and FT cycling had the least significant effect; in all three modes, the first cycle had the highest contribution to this effect. From the perspectives of cohesion, angle of internal friction, and decay of shear strength attenuation, the coupled WD-FT cycling effect on soil shear strength could not be reduced to a simple single-factor addition–subtraction relationship. (4) Weight analysis of soil samples after WD, FT, and WD-FT cycling revealed that WD cycles in the coupled WD-FT cycling mode had the most significant impact on the shear strength attenuation of soil samples (contributing 57%), FT cycles had a medium impact (contributing about 33%), while the effect of the total number of cycles was negligible (about 10%). The research results provide experimental and theoretical bases for subsequent control of loess landslides.
Optimization of Reservoir Level Scheduling Based on InSAR-LSTM Deformation Prediction Model for Rockfill Dams
Authors: Fang Zhigang , He Rong , Yu Haiyang , He Zixin , Pan Yaming
Published: September 2023

The Xiaolangdi reservoir has a storage capacity of more than 10 billion cubic meters, and the dam has significant seasonal deformation. Predicting the deformation of the dam during different periods is important for the safe operation of the dam. In this study, a long short-term memory (LSTM) model based on interferometric synthetic aperture radar (InSAR) deformation data is introduced to predict dam deformation. First, a time series deformation model of the Xiaolangdi Dam for 2017–2023 was established using Sentinel-1A data with small baseline subset InSAR (SBAS-InSAR), and a cumulative deformation accuracy of 95% was compared with the on-site measurement data at the typical point P. The correlation between reservoir level and dam deformation was found to be 0.81. Then, a model of reservoir level and dam deformation predicted by neural LSTM was established. The overall deformation error of the dam was predicted to be within 10 percent. Finally, we used the optimized reservoir level to simulate the deformation at the measured point P of the dam, which was reduced by about 36% compared to the real deformation. The results showed that the combination of InSAR and LSTM could predict dam failure and prevent potential failure risks by adjusting the reservoir levels.
Impact of dome projection on operative steps during clipping of a ruptured pure posteriorly directed posterior communicating artery aneurysms
Authors: Ismail Mustafa , Alshalchi Ali K. , M. Badr Muslim , O. Abdulameer Abdulameer , A. Algburi Hagar , Al-Taie Rania H. , Al-Lami Saleh , Al-Khafaji Aktham O. , S. Hoz Samer
Published: September 2023

Background: Ruptured posterior communicating artery (PCoA) aneurysms are common; they usually present with subarachnoid haemorrhage (SAH) and oculomotor nerve palsy. The aneurysmal dome projection may influence the safety access and aneurysmal neck clipping. Here, we discuss additional intraoperative steps that may be required to widen the surgical field to ensure safe surgical clipping of a rupture pure posteriorly directed PCoA aneurysm.
Case description: A previously healthy 38-year-old male reported sudden severe headache and disturbed level of consciousness with a Glasgow coma scale (GCS) of 13. His initial computed tomography (CT) scan of the head showed SAH in the basal cistern. 3D-constructed CT angiography (CTA) revealed a left pure posteriorly directed PCoA aneurysm.
In the surgery, through the left pterional approach, all intraoperative steps were carried out. Additional steps were performed as well. Three additional intraoperative steps were contemplated because a pure posteriorly directed PCoA aneurysm is not well appreciated and is often hidden behind the supra cliniold internal carotid artery (ICA). First, the extension of Sylvian fissure dissection to include the distal part and the proximal. Second, temporal pole mobilization is performed by cutting small anterior temporal veins. Third, a brain retractor is placed on the temporal lobe to gently tract the superficial part of the lobe. All these steps widened the surgical corridor to ensure the aneurysm's safe clipping.
Conclusion: Surgical clipping is influenced by the aneurysmal dome projection. In a ruptured pure posteriorly directed PCoA aneurysm, further intraoperative steps may facilitate complete access and safe clipping of the aneurysm.
Tangential gunshot wound to the head
Authors: Al-baidar Ruqayah A. , Ismail Mustafa , Elamin Osman , Ahmed Mustafa K. , Abdulsada Alkawthar M. , Neamah Ali M. , Al-Khafaji Aktham O. , Hoz Samer S.
Published: September 2023

Introduction. Tangential gunshot wounds (TGSW) to the head is the high-velocity bullet that does not penetrate the cranium but passes through the tissue adjoining the cranial cavity, creating a “gutter” wound and indirectly causing cerebral injury. This article presents a reporting case of TGSW to the head, discusses the mechanism underlying this traumatic injury and the possible complications resulting from it, and reviews of literature. 
Case description. A thirteen-year-old schoolboy was admitted to the emergency department (ER) of the neurosurgery teaching hospital in Baghdad, Iraq, with a tangential gunshot to the head of an unknown source during civilian protests in Baghdad. In addition to a seizure attack in the ER, his Glasgow coma (GCS) scale was 13 initially. The computed tomography showed multiple bilateral brain contusions, interhemispheric haemorrhage, partially depressed fracture of the frontal bone midline, and a Paramedian to the left with a significantly depressed skull fracture. Then, an urgent decompressive craniectomy was performed. The postoperative course was uneventful, with rapid improvement in GCS of 15 one hour after surgery. On the six-month follow-up, the patient reported no further attacks of seizure.
Conclusion. TGSWs are associated with good GCS and favourable prognosis in most cases unless the patient has been deteriorating or has an associated ICH. Moreover, in our case, the history taking, mechanism of the injury, rapid evolution, and radiological imaging have an essential effect on the outcome.
Endoscopic third ventriculostomy
Authors: Al-Smaysim Ammar M. , Alhayali Waleed K. , Alsaadi Salima B. , Abdulameer Aanab O. , Ismail Mustafa , Hoz Samer S.
Published: September 2023

Introduction. Endoscopic third ventriculostomy (ETV) is the treatment of choice in obstructive hydrocephalus. It has become the main standard choice in management since 1962. However, there is scant data regarding the complications from clinical or multi-centre trials. This study highlights the specific complications and prevention methods related to ETV in Neurosurgical Teaching Hospital, Baghdad, Iraq.
Methods. It is a prospective case series study conducted on cases in the Neurosurgical Teaching Hospital in Baghdad, Iraq, from January 2014- October 2019. We selected ninety patients. The sample selection was convenient as any patients admitted in the study period who met the selection criteria were included. All included patients underwent a Computerized Tomography scan or Magnetic Resonance Imaging in the periprocedural management.
Results. Ninety cases have 59 (65.5%) females and 31 (34.5%) males. The most common cause of hydrocephalus is congenital causes (51 cases (56.6%), especially within the first decade of life. Aqueduct stenosis is the leading cause in 37 cases (72%). ETV complications were found in 32 cases (35.5%). The most common cause of complications is congenital cases of 14 (15%). Intraoperative complications include bleeding (mild, moderate, and severe) in 18 cases (20%). Mild bleeding constitutes 15 cases (16.6%) of all complicated cases.
Conclusion. ETV is a standard procedure in the management of obstructive hydrocephalus. The complication rate is found in around one-third of the cases in our study. Surgeons’ selection of indicated patients and better surgical experience decrease the failure rate of ETV and complications.
Sellar hematoma as a new potential radiological clue for superior hypophyseal artery aneurysm rupture
Authors: Hoz Samer S. , AL-Jehani Hosam , Hamouda Waeel O. , Al-Zaidy Mahmood F. , Ismail Mustafa , Al-Khafaji Aktham O.
Published: September 2023

Background. In cases of spontaneous subarachnoid haemorrhage (SAH) with multiple intracranial aneurysms (MIAs) detected on angiography, some radiological clues assist in determining the site of a ruptured aneurysm which is bleeding is quite beneficial for the selection of the best treatment strategy.
Case description. We report a case of a 60 years old patient who presented with spontaneous SAH, sellar hematoma, and three different aneurysms detected in angiography. Although the right Posterior communicating artery (PcomA) aneurysms showed Murphy’s teat on angiography intraoperatively, we discovered that the right superior hypophyseal aneurysm (SHA) was the source of the index bleeding. Both aneurysms were clipped successfully.
Conclusion. From the preoperative radiological and intraoperative surgical findings, we propose that sellar hematoma on a non-contrast CT scan is a new potential sign to be correlated with superior hypophyseal artery aneurysm rupture.