bluuebunny/crossref_metadata_2025 huggingface dataset:
Contrastive Learning Framework for Bitcoin Crash Prediction
Authors: Liu Zhaoyan , Shu Min , Zhu Wei
Published: May 2024

Due to spectacular gains during periods of rapid price increase and unpredictably large drops, Bitcoin has become a popular emergent asset class over the past few years. In this paper, we are interested in predicting the crashes of Bitcoin market. To tackle this task, we propose a framework for deep learning time series classification based on contrastive learning. The proposed framework is evaluated against six machine learning (ML) and deep learning (DL) baseline models, and outperforms them by 15.8% in balanced accuracy. Thus, we conclude that the contrastive learning strategy significantly enhance the model’s ability of extracting informative representations, and our proposed framework performs well in predicting Bitcoin crashes.
The Collapse of the Vaults of the Ambato Matriz Church in the 1949 Earthquake: A Response with a Technical Approach
Authors: López-Ulloa Fabián S. , Redondo Martínez Esther , Gil Crespo Ignacio Javier , Goyes-Balladares Andrea , Chávez-Rubio Luis Enrique
Published: May 2024

This research examines the structural behavior of the central vault of the Matriz church that collapsed during the 1949 earthquake in Ambato, Ecuador. Following the disaster, the church and Episcopal Palace were demolished. The central vault lacked buttresses and had large cracks two years before the collapse. A study was conducted using graphic restitution and the theory of limit analysis of structures to analyze the mechanical behavior of the central vault. The aim was to provide a technical explanation for the cause of the collapse beyond the impact of the earthquake. The limit analysis of structures is a tool that determines the technical stability conditions of a masonry structure using graphic statics. In this case, the respective checks of the structural behavior could be made, concluding that the structural ensemble of the central vault was unstable and could have collapsed at any moment, not necessarily due to an earthquake. The article is based on the research project “Architectural analysis of the central nucleus of Ambato between 1895 and 1949: styles, types, techniques, losses, and continuities”, which was conducted at the Universidad Técnica de Ambato, Ecuador, from 2021 to 2023.
Exploration of the Deep Impact of Digital Platforms on Innovation and Entrepreneurship Activities of Entrepreneurs under the Information Management Framework
Authors: Xie Fanbao , Guan Xin , Peng Xiaoyan , Wang Caimeng , Zeng Yanzhao , Wang Zeyu , Bai Rong
Published: May 2024

With the rapid development of information technology, digital platforms (DPs) have emerged as an indispensable aspect of the entrepreneurial landscape, which has a profound impact on entrepreneurial innovation and practice. However, there remains a gap in understanding the specific ways in which DPs influence the entrepreneurial process. Therefore, within the framework of information management theory, this study aims to deepen the understanding of how DPs foster entrepreneurial innovation and enhance entrepreneurial effectiveness, thereby enhancing the overall efficiency of DPs. Firstly, the concept of information management in contemporary social enterprise management is thoroughly examined and reviewed to establish a robust theoretical foundation for further research. Secondly, the conceptual framework and core elements of DPs are extensively discussed, elucidating their role and function in the entrepreneurial process. On this basis, a theoretical model illustrating the impact of DPs on entrepreneurial innovation and activities is formulated, along with six specific research hypotheses. These hypotheses encompass the effects of DPs on entrepreneur behavior, enterprise development, and the platform–entrepreneur relationship. To verify the validity of these hypotheses, a questionnaire survey involving 398 entrepreneurs is conducted to facilitate in-depth communication. Simultaneously, the various attributes of entrepreneurs are categorized, and the resulting classifications are thoroughly analyzed and evaluated. The results show that the DP plays a positive role in promoting the development of platform enterprises, improving intrapreneurship activities, and enhancing the ability of intrapreneurship. In addition, DPs can effectively regulate the relationship between platform enterprises and entrepreneurs and promote the self-development of entrepreneurs. Furthermore, the entrepreneurial growth process has positively influenced platform enterprises. This finding strongly supports the practical application of DPs and provides valuable guidance for entrepreneurs to leverage them effectively in fostering innovation and entrepreneurial activities in the digital era. Meanwhile, this offers crucial insights for platform enterprises on enhancing their service offerings to entrepreneurs and fostering the sustainable development of the entrepreneurial ecosystem. In summary, through rigorous theoretical discourse and empirical analysis, this study emphasizes the significant role of DPs in the entrepreneurial journey, providing robust backing for their continued advancement and utilization in the entrepreneurial realm.
Smartening Local Energy in Europe: A Comparative Analysis of Three Cases and Their Implications for Supporting Transformative Governance Practices
Authors: Barnes Jake , Darby Sarah , Hansen Paula
Published: May 2024

Achieving global sustainability goals, while maintaining or increasing access to energy services, calls for agile and many-faceted responses. The pursuit of ‘smart local energy systems’ is one such response that involves a paradigm shift, taking the concept of an energy system away from large-scale power plants and fuel stores towards more flexible configurations to harness renewable energy flows, with highly distributed physical assets, actors, skills and controls. Smart local energy requires citizens, industry, utilities and government bodies to collaborate and learn together in order to develop effective modes of governing that meet sustainability goals and provide reliable, accessible energy services. In this article, we introduce practical implications of creating more localised energy systems with the aid of digital technologies. We then analyse three emerging European energy communities in terms of their actors, activities and alliances, to build an understanding of governance practices within and beyond the communities that are capable of fostering transformative change towards sustainability. From this, we argue that maintaining progress towards smart local energy systems requires transformative governance within and beyond initiatives. It requires local governance arrangements that are agile and responsive to new actors and activities as well as to broader external circumstances.
Evaluation of the Pathway of Contaminants in the Environment: A Case Study of Different Aquatic Environmental Compartments
Authors: Espíndola Jonathan Cawettiere , Scaccia Nazareno , Barbosa Segundo Inalmar , Diniz Davi da Silva , Diniz José Uelton , Mierzwa José Carlos
Published: May 2024

The occurrence of contaminants of emerging concern (CECs) in several environmental compartments has raised significant concern given the extensive array of compounds and their consistent detection across various environmental matrices. Monitoring all potentially harmful compounds and identifying their sources is nearly impossible. However, providing data on their occurrence is crucial and lays the groundwork for decision makers to craft mitigation strategies toward a more sustainable water policy. Hence, the primary aim of this study was to conduct an evaluation study on CECs occurrence in the environment. The main novelty relies on understanding their specific pathway in three different environmental aquatic compartments. For that, a combined study of a systematic review and systemic analysis was performed. Initially, the five most common types of CECs found in aquatic ecosystems (groundwater and surface water) and wastewater were considered. For each group of CECs, five contaminants were identified. A bibliographic portfolio was generated through the application of a systematic review. Finally, a systemic analysis of the bibliographic portfolio was conducted. All classes of contaminants studied were identified in the environmental compartments evaluated. Except for pesticides, the degree of contamination by CECs followed a sequence based on the aquatic compartment (i.e., WW–SW–GW).
Assessment of Mercury Contamination in Water and Soil from Informal Artisanal Gold Mining: Implications for Environmental and Human Health in Darmali Area, Sudan
Authors: Elwaleed Ahmed , Jeong Huiho , Abdelbagi Ali H. , Thi Quynh Nguyen , Nugraha Willy Cahya , Agusa Tetsuro , Ishibashi Yasuhiro , Arizono Koji
Published: May 2024

Mercury contamination stemming from artisanal and small-scale gold mining (ASGM) operations poses significant environmental and health concerns. This study focuses on the Darmali area in River Nile State, Sudan, where the reprocessing of amalgamation tailings has led to mercury contamination. This study assessed the mercury content in soil and tailings samples, as well as in tap and groundwater, to evaluate the human health risks from ASGM activities and assess contamination levels within the study area. Soil and water samples were collected from various locations, including agricultural, residential, and tailings sites, as well as groundwater and tap water from the Nile. Mercury analysis was conducted using MA-3000 (NIC), and geo-accumulation index analysis revealed extreme pollution levels in areas with tailings and moderate pollution levels in agricultural and residential areas. Hazard quotients were applied to assess health risks, with inhalation of mercury vapor identified as the primary exposure route. The results indicated that tailings pose significant health risks, particularly for children, while water samples and soil from agricultural and residential areas did not pose significant risks. These findings underscore the urgent need for authorities and local communities to address mercury contamination by removing and treating tailings from affected areas to mitigate health risks.
The Impact of the Industrial Internet on the Innovation and Development Level of China’s Manufacturing Industry: Under the Perspective of Government Incentives
Authors: Ma Liang , Hu Weiqiang , Liang Ru
Published: May 2024

In the era of the digital economy, it has become an inevitable trend for manufacturing enterprises to establish industrial Internet platforms toward achieving transformation and innovative development. However, the current development model of industrial Internet platforms is still imperfect, wherein the application scenario is complex, the investment cost is too high, the return-on-investment cycle is too long, and other factors have hindered the willingness of manufacturing enterprises to employ cloud services and capital investment. For this reason, governments have introduced a series of relevant incentive policies to promote the development of industrial Internet platforms and the transformation and upgrading of manufacturing enterprises. Considering the role of government incentives, this study first constructs an evolutionary game model with local governments, manufacturing enterprises, and industrial Internet platforms as the main players. Then, the dynamic change process of each game player’s strategy choice and the stable state of the system evolution under multiple scenarios are analyzed, and the validity of the conclusions is verified through a numerical simulation analysis. Finally, the statistical data of 28 provinces in China from 2018 to 2020 are used to conduct an empirical test to explore the impact of the industrial Internet on the transformation and innovation development of the manufacturing industry and the role of government incentives. The results show that the development of the industrial Internet has a significant role in promoting the innovation and development of the manufacturing industry; government incentives can promote the innovation and development of the industrial Internet and manufacturing industry, but incentives should not be too generous; and the impact of developing the industrial Internet on the level of innovation input/output of the manufacturing industry shows obvious regional differences. This study takes the local government as an independent game participant into consideration, which enriches the research field of combining evolutionary game theory with the transformation and innovative development of the manufacturing industry. In addition, this study provides theoretical guidance and practical references for the government to formulate incentive policies to promote the development of industrial Internet platforms and for manufacturing enterprises to utilize these platforms to carry out innovation and perform upgrades.
A Comparative Study of the Tourism Carrying Capacity of the State of Baja California between 2019 and 2022
Authors: Bernal Blanca , Montero Nancy , Vázquez Sergio
Published: May 2024

The purpose of this work is to conduct a comparative study of variations in the indicators of the tourism carrying capacity in the state of Baja California. It is crucial to consider that the state had to confront the COVID-19 pandemic, during which tourism was not deemed an essential activity. This circumstance generated numerous social, psychological, and economic effects, primarily. In this regard, the aim is to identify the consequences of organizing events that promote tourism, particularly concerning the opinions of business professionals in the region. This is a qualitative and longitudinal study; the initial phase took place in May 2019, while the second survey occurred in the summer of 2022. The statistical sample is non-probabilistic and based on convenience, comprising 320 tourism businesses. The findings indicate that the tourist destinations remained appealing, experiencing inflows just above the average and approaching their capacity limits. Significantly, there are areas for improvement in terms of their tourist load capacities across each of the dimensions studied, despite the global health crisis.
Synergistic Integration of EVs and Renewable DGs in Distribution Micro-Grids
Authors: Ghofrani Mahmoud
Published: May 2024

This paper proposes a multi-objective optimization framework for safe, reliable, and economic integration of electric vehicles (EVs) and renewable distributed generators (DGs) in distribution micro-grids. EV and DG coordination optimization with the use of vehicle-to-grid (V2G) technology along with system reconfiguration optimization is developed to provide collective revenues and address integrational complications that may occur by additional system loading due to EV charging and EV-DG energy exchanges. A Genetic Algorithm (GA) optimizes the EV charging/discharging in synergies with renewable DGs to maximize benefits that can be captured by their collaborative participation in electricity market and through renewable energy arbitrage. The developed EV charging/discharging optimization is implemented in a real 134-bus distribution network and is evaluated for its potential operational implications, namely, increased system losses. A system reconfiguration is then proposed to reduce the system losses by optimizing the flow of power through switching on/off the connections within the micro-grid and/or with other distribution systems. Simulation results demonstrate the efficiency of the proposed method in not only providing collective revenues, but also in enhancing the system operation by reducing the losses of the distribution grid. The collective benefits proposed by the developed optimization and validated by the simulation results facilitate transitioning to clean and eco-friendly sources of energy for generation and transportation, which in turn leads to more sustainable development of societies and communities.
Dynamic Changes in Ecosystem Service Value and Ecological Compensation in Original Continuous Poverty-Stricken Areas of China
Authors: Yu Zhe , Song Chunwei , Du Huishi
Published: May 2024

The original contiguous poverty-stricken areas of China (OCPSAC) are a regional complex with natural and human attributes. Their ecosystem services are highly complex in their contribution to human well-being. The region’s ecosystem is unstable and socio-economic development is unbalanced, making it a key area for research and the implementation of the United Nations Sustainable Development Goals. Therefore, it has become the focus of social attention. This study obtained satellite remote sensing images of the Landsat8 based on the Google Earth Engine. The dynamic characteristics of the spatial and temporal distribution of the OCPSAC’s land use changes in 2015 and 2022 were analyzed. The characteristics of the changes in ecosystem service value (ESV) were quantitatively evaluated through the revised ESV equivalent scale, and the ecological compensation (EC) standards and EC priority level suitable for the region were explored. The research results showed that: (1) the OCPSAC land use types were mainly grassland, forests, and deserts, accounting for more than 80% of the research area; (2) the OCPSAC’s ESV reached CNY 115.578 billion, and the Tibet Region (TR) and Tibetan Region of Four Provinces (TRFP) had the highest ESVs, accounting for 32.28% and 19.64%, respectively. Among individual ESVs, hydrological regulation (HR) and climate regulation (CR) had the highest values, accounting for 55.23% of the research area; (3) the ESV of the research area presented the characteristics of being high in the middle and low at both ends. From the terrain perspective, the areas with a higher ESV per unit area were distributed in the second altitude gradient, followed by China’s third altitude gradient, and the first altitude gradient was the lowest; (4) in the period of 2015–2022, the ESV increased by CNY 21.39 billion, of which TR’s ESV increased by CNY 17.44 billion. From the perspective of a single ESV, the value of waste treatment (WT), HR, nutrient cycle (NC), and provide aesthetic landscape (PAL) increased by CNY 24.38 billion; and (5) in 2022, the EC standard of the OCPSAC was CNY 917.14 billion. High-EC-value areas were mainly distributed in TR and TRFP, accounting for 72.79% of the total compensation amount, of which only TR’s EC amount exceeded a GDP of 2022, accounting for 4.77% of the total compensation. The purpose of this study was to provide a reference for ecosystem sustainability and EC.
Environmental Restoration and Changes of Sediment and Hydrodynamic Parameters in a Section of a Renaturalised Lowland Watercourse
Authors: Zaborowski Stanisław , Kałuża Tomasz , Jusik Szymon , Dysarz Tomasz , Hämmerling Mateusz
Published: May 2024

In Europe, the routes of most watercourses were straightened and shortened, leading to the destruction and degradation of many natural environments. Currently, in places where it is possible, as part of the implementation of the Water Framework Directive, efforts are made to improve environmental sustainability, including improving the ecological condition of rivers. This paper presents the impact of three in-stream deflectors on changes in the section of a small lowland river—the Flinta (Poland)—where (from 2018 to 2023) detailed, systematic geodetic, and hydrometric research and an assessment of the ecological conditions were carried out. The presented results show the influence of deflectors on the initiation of fluvial processes in the transverse and longitudinal layouts of the channel. The river channel was narrowed from 6 to 5 m, and the current line shifted by almost 3 m. Changes were observed in the distribution of velocities and shear stresses, varying along the surveyed section of the river. In the first year after their application, an increase in velocity at the deflectors can be observed (from 0.2 m∙s−1 to 0.6 m∙s−1 in the deflector cross-section). In the following years, on the other hand, a clear decrease in velocity was observed in the sections between the deflectors (to 0.3 m∙s−1). The introduction of deflectors resulted in a significant increase in the values of shear stresses (from an average value of 0.0241 N∙m−2 in 2018 to 0.2761 N∙m−2 in 2023) and local roughness coefficients (from 0.045 s∙m−1/3 before the introduction of the deflectors to 0.070 s∙m−1/3 in 2023). Based on analyses of sediment samples, erosion and accumulation of bottom material were initially observed, followed by a subsequent stabilisation of particle size. Differences in grain size were observed, especially in the cross-section of the deflectors (increase in granularity d50% downstream of the deflector from 0.31 mm to 3.9 mm already 2 years after the introduction of deflectors). This study confirmed the positive impact of using deflectors on hydromorphological processes as deflectors facilitate the achievement of a good ecological status, as required by the WFD. The innovation of this paper lies in demonstrating the possibility of using small, simple structures to initiate and intensify fluvial processes, which may contribute to improving the ecological conditions of watercourses.
Tight or Loose: Analysis of the Organization Cognition Process of Epidemic Risk and Policy Selection
Authors: Fan Chao , Zhuang Yue , Qian Yangyang
Published: May 2024

In the context of Disease X risks, how governments and public health authorities make policy choices in response to potential epidemics has become a topic of increasing concern. The tightness of epidemic prevention policies is related to the effectiveness of the implementation of measures, while the organizational cognition of epidemic risks is related to the rationality of policy choices. During the three years of COVID-19, the Chinese government constantly adjusted the tightness of its prevention policies as awareness of the epidemic risk improved. Therefore, based on the epidemic risk organizational cognition model, the key nodes that affect the tightness of epidemic prevention policies can be explored to find the organizational behavior rules behind the selection of prevention policies. Firstly, through observing the adjustments made to the Chinese government’s prevention strategies during the epidemic, a time-series cross-case comparative analysis reveals how policy tightness shifted from stringent to lenient. This shift coincided with the organizational cognition of epidemic risk evolving from vague to clear. Secondly, by building the “knowledge-cognition” coordinate system to draw the organizational cognition spiral of epidemic risk, it is clear that the changes in the tightness of the prevention policies mainly came from the internalization and externalization of knowledge such as epidemic risk characteristics to promote the level of organizational cognition, which is manifested as expansion and deepening. Thirdly, the node changes in the interaction between organizational cognition development and policy choice proved that different stages of the epidemic had diverse environmental parameters. Moreover, as the epidemic nears its end, the focus of policy tightness is shifting from policy objectives to policy implementation around governance tools. The results indicate that organizational cognition of epidemic risk exhibits significant stages and periodicity. Additionally, epidemic risk characteristics, environmental coupling, and governance tools are crucial factors in determining the tightness of epidemic prevention policies.
Comparative Analysis of Laboratory-Made and Industrial-Made Sewage Sludge Ash: Implications for Effective Management Strategy Development
Authors: Cieślik Bartłomiej Michał , Ronda Oskar , Grządka Elżbieta , Orzeł Jolanta , Płotka-Wasylka Justyna
Published: May 2024

In the pursuit of environmentally and economically sustainable sewage sludge ash (SSA) management methods, researchers often employ laboratory-made SSA (L-SSA) as a substitute for industrial-made SSA (I-SSA) produced in fluidized bed furnaces. To check whether L-SSA is a material that imitates I-SSA well, the fractionation of metals whose presence is a significant problem during SSA management was performed. In addition, the grain distribution, specific surface area, and textural properties of the tested materials were examined. Differences in total Pb and Hg content and mobility of Cu, Ni, Mn, and Zn were observed between I-SSA and L-SSA. Larger particle sizes of L-SSA compared to I-SSA were confirmed, while comparable textural properties and specific surface area of both types of materials were maintained. Based on the results, it was concluded that L-SSA is chemically different compared to I-SSA, and that L-SSA should not be used as a reference in research focused on the design of SSA management methods. Moreover, fractionation of metals was performed in disposed fluidized beds (FBs), which are diverted to non-hazardous waste landfills without prior analysis. It has been proven that studied metals are present in FBs as abundantly as in SSA, while Cu, Mn, and Ni may show higher mobility than in I-SSA.
Hepatocyte Intrinsic Innate Antiviral Immunity against Hepatitis Delta Virus Infection: The Voices of Bona Fide Human Hepatocytes
Authors: Woo Yein , Ma Muyuan , Okawa Masashi , Saito Takeshi
Published: May 2024

The pathogenesis of viral infection is attributed to two folds: intrinsic cell death pathway activation due to the viral cytopathic effect, and immune-mediated extrinsic cellular injuries. The immune system, encompassing both innate and adaptive immunity, therefore acts as a double-edged sword in viral infection. Insufficient potency permits pathogens to establish lifelong persistent infection and its consequences, while excessive activation leads to organ damage beyond its mission to control viral pathogens. The innate immune response serves as the front line of defense against viral infection, which is triggered through the recognition of viral products, referred to as pathogen-associated molecular patterns (PAMPs), by host cell pattern recognition receptors (PRRs). The PRRs–PAMPs interaction results in the induction of interferon-stimulated genes (ISGs) in infected cells, as well as the secretion of interferons (IFNs), to establish a tissue-wide antiviral state in an autocrine and paracrine manner. Cumulative evidence suggests significant variability in the expression patterns of PRRs, the induction potency of ISGs and IFNs, and the IFN response across different cell types and species. Hence, in our understanding of viral hepatitis pathogenesis, insights gained through hepatoma cell lines or murine-based experimental systems are uncertain in precisely recapitulating the innate antiviral response of genuine human hepatocytes. Accordingly, this review article aims to extract and summarize evidence made possible with bona fide human hepatocytes-based study tools, along with their clinical relevance and implications, as well as to identify the remaining gaps in knowledge for future investigations.
Roles Played by DOCK11, a Guanine Nucleotide Exchange Factor, in HBV Entry and Persistence in Hepatocytes
Authors: Li Ying-Yi , Murai Kazuhisa , Lyu Junyan , Honda Masao
Published: May 2024

HBV infection is challenging to cure due to the persistence of viral covalently closed circular viral DNA (cccDNA). The dedicator of cytokinesis 11 (DOCK11) is recognized as a guanine nucleotide exchange factor (GEF) for CDC42 that has been reported to be required for HBV persistence. DOCK11 is expressed in both the cytoplasm and nucleus of human hepatocytes and is functionally associated with retrograde trafficking proteins Arf-GAP with GTPase domain, ankyrin repeat, and pleckstrin homology domain-containing protein 2 (AGAP2), and ADP-ribosylation factor 1 (ARF1), together with the HBV capsid, in the trans-Golgi network (TGN). This opens an alternative retrograde trafficking route for HBV from early endosomes (EEs) to the TGN and then to the endoplasmic reticulum (ER), thereby avoiding lysosomal degradation. DOCK11 also facilitates the association of cccDNA with H3K4me3 and RNA Pol II for activating cccDNA transcription. In addition, DOCK11 plays a crucial role in the host DNA repair system, being essential for cccDNA synthesis. This function can be inhibited by 10M-D42AN, a novel DOCK11-binding peptide, leading to the suppression of HBV replication both in vitro and in vivo. Treatment with a combination of 10M-D42AN and entecavir may represent a promising therapeutic strategy for patients with chronic hepatitis B (CHB). Consequently, DOCK11 may be seen as a potential candidate molecule in the development of molecularly targeted drugs against CHB.
Phylogenetic Relationships and Evolution of the Genus Eganvirus (186-Type) Yersinia pestis Bacteriophages
Authors: Guo Jin , Zhong Youhong , Wang Yiting , Liu Pan , Jin Haixiao , Wang Yumeng , Shi Liyuan , Wang Peng , Li Wei
Published: May 2024

Plague is an endemic infectious disease caused by Yersinia pestis. In this study, we isolated fourteen phages with similar sequence arrangements to phage 186; these phages exhibited different lytic abilities in Enterobacteriaceae strains. To illustrate the phylogenetic relationships and evolutionary relationships between previously designated 186-type phages, we analysed the complete sequences and important genes of the phages, including whole-genome average nucleotide identity (ANI) and collinearity comparison, evolutionary analysis of four conserved structural genes (V, T, R, and Q genes), and analysis of the regulatory genes (cI, apl, and cII) and integrase gene (int). Phylogenetic analysis revealed that thirteen of the newly isolated phages belong to the genus Eganvirus and one belongs to the genus Felsduovirus in the family Peduoviridae, and these Eganvirus phages can be roughly clustered into three subgroups. The topological relationships exhibited by the whole-genome and structural genes seemed similar and stable, while the regulatory genes presented different topological relationships with the structural genes, and these results indicated that there was some homologous recombination in the regulatory genes. These newly isolated 186-type phages were mostly isolated from dogs, suggesting that the resistance of Canidae to Y. pestis infection may be related to the wide distribution of phages with lytic capability.
Age-Stratified Seroprevalence of Respiratory Syncytial Virus: Analysis Using Prefusion F and G Protein Antibodies
Authors: Nham Eliel , Jang A-Yeung , Hyun Hakjun , Yoon Jin Gu , Noh Ji Yun , Cheong Hee Jin , Kim Woo Joo , Ahn Ki Bum , Ji Hyun Jung , Seo Ho Seong , Bae Joon-Yong , Park Man-Seong , Song Joon Young
Published: May 2024

This is a cross-sectional serosurveillance study for RSV. Between June and September of 2021, a total of 150 sera were collected from 30 individuals in each age group (<5, 5–18, 19–49, 50–64, and ≥65 years). Seroprevalence was estimated using enzyme-linked immunosorbent assays targeting two stabilized prefusion F (preF; DS-Cav1 and SC-TM) and G proteins. The overall seroprevalence was low in young children and older adults, despite them having a higher risk of severe RSV infection. There was a remarkable difference in age-stratified seroprevalence rates between anti-preF and anti-G protein antibodies. Given the high disease burden and low seroprevalence in both infants and old adults, RSV vaccination would be crucial for pregnant women and people aged over 60 years.
Response of Soil Moisture to Four Rainfall Regimes and Tillage Measures under Natural Rainfall in Red Soil Region, Southern China
Authors: Liang Ziwei , Chen Xiaoan , Wang Ce , Zhang Zhanyu
Published: May 2024

Investigating the effects of natural rainfall on the soil moisture for sloping farmland is extremely important for comprehending a variety of hydrological processes. Rainfall regimes can elicit different responses to soil moisture at the depth of soil layers, and the responses may differ depending on the landscape position of the sloping farmland. This paper utilized the surface runoff natural rainfall and soil moisture measured on sloping farmland with conventional tillage and contour tillage in the red soil area of China to investigate the influence of natural rainfall events on soil moisture content and to evaluate if the response results were consistent across the four rainfall regimes. Natural rainfall events were classified into different four regimes in line with rainfall duration, rainfall amount, and the maximum 30 min rainfall intensity (I30) by the k-means clustering method, including advanced, intermediate, uniform and delayed regimes. The result showed that the advanced regime was the predominant one in the study area, which represented 45.9% of the total rainfall events. The rainfall regimes influenced the surface runoff coefficient and runoff depth on sloping farmland for conventional and contour tillage, with the uniform regime generating the highest runoff coefficient (5.20% and 5.82%) and runoff depth (2.00% and 2.05%), respectively. For the conventional tillage, soil moisture at a depth of 0–20 cm increased appreciably when the rainfall amount was larger than 20 mm and larger than 30 mm for the advanced regime. For the contour tillage, soil moisture in 20–40 cm layer increased for the advanced regime when the rainfall amount was larger than 15 mm and 30 mm, while the values were modified with rainfall duration and the antecedent dry day (ADD). A longer rainfall duration had a more obvious effect on soil moisture increasing in deep soil. At a depth of 20 cm, the ADD showed an appreciably positive correlation with the increment in soil moisture, which means that a brief ADD produces a compounding effect for a natural rainfall event. The present results underline the complexity of the effect of the rainfall events on soil moisture under two tillage measures for different rainfall regimes and suggest that the advanced regime significantly affects the distinction of soil moisture and the contour tillage can effectively reduce soil water loss and enhance water storage on the sloping farmland with red soil, presenting a theoretical basis for local soil and water conservation research and sloping farmland conservation tillage management.
Response of Streamflow to Future Land Use and Cover Change and Climate Change in the Source Region of the Yellow River
Authors: Zhan Hao , Zhang Jiang , Wang Le , Yu Dongxue , Xu Min , Zhu Qiuan
Published: May 2024

This study utilizes meteorological and leaf area index (LAI) data for three shared socioeconomic pathways (SSP1–2.6, SSP2–4.5, and SSP5–8.5) from four general circulation models (GCMs) of the sixth climate model intercomparison project (CMIP6) spanning from 2015 to 2099. Employing calibrated data and incorporating future land use data under three SSPs, the distributed hydrology soil vegetation model (DHSVM) is employed to simulate streamflow in the source region of the Yellow River (SRYR). The research aims to elucidate variations in streamflow across different future scenarios and to estimate extreme streamflow events and temporal distribution changes under future land use and cover change (LUCC) and climate change scenarios. The main conclusions are as follows: The grassland status in the SRYR will significantly improve from 2020 to 2099, with noticeable increases in temperature, precipitation, and longwave radiation, alongside a pronounced decrease in wind speed. The probability of flooding events increases in the future, although the magnitude of the increase diminishes over time. Both LUCC and climate change contribute to an increase in the multi-year average streamflow in the region, with respective increments of 48.8%, 24.5%, and 18.9% under SSP1–2.6, SSP2–4.5, and SSP5–8.5. Notably, the fluctuation in streamflow is most pronounced under SSP5–8.5. In SSP1–2.6, the increase in streamflow during the near future (2020–2059) exceeds that of the distant future (2059–2099). Seasonal variations in streamflow intensify across most scenarios, leading to a more uneven distribution of streamflow throughout the year and an extension of the flood season.
Analyzing Priority Management for Water Quality Improvement Strategies with Regional Characteristics
Authors: Lee Jimin , Park Minji , Choi Byungwoong , Kim Jinsun , Na Eun Hye
Published: May 2024

As the management areas for NPS pollution continue to increase, it is essential to conduct a situation analysis considering the regional characteristics and the scope of pollution reduction. In this study, the focus is on differentiating regional (urban, agricultural) characteristics to enhance water quality and reduce pollution loads in the increasing management areas for NPSs. Furthermore, priority management areas are identified based on urgency and vulnerability, and management strategies are proposed. The assessment involved evaluating both streamflow and water quality (T-P) using long-term monitoring data and watershed models (SWAT and HSPF) that take into account regional characteristics. The results indicated notable regional improvements, with T-P pollution reductions ranging from 20.7% to 26.8% and T-P concentration reductions ranging from 16.4% to 24.7% compared to baseline conditions in unmanaged areas. Based on these research findings, it is anticipated that the efficient and effective management of NPS pollution can be implemented on a regional basis. Moreover, the results of this study will not only contribute to the establishment of pollution standards, but also significantly impact the evaluation and proposal of management objectives, thereby making a substantial contribution to national water quality policies.
Heterojunction-Based Photocatalytic Degradation of Rose Bengal Dye via Gold-Decorated α-Fe2O3-CeO2 Nanocomposites under Visible-Light Irradiation
Authors: Alshammari Najah Ayad , Kosa Samia Abdulhammed , Patel Rajan , Malik Maqsood Ahmad
Published: May 2024

Developing photocatalytic nanomaterials with unique physical and chemical features using low-cost and eco-friendly synthetic methods is highly desirable in wastewater treatment. In this work, the magnetically separable α-Fe2O3-CeO2 nanocomposite (NC), with its respective metal oxides of α-Fe2O3 and CeO2 nanoparticles, was synthesized using a combination of hexadecyltrimethylammonium bromide (CATB) and ascorbic acid via the hydrothermal method. To tune the band gap, the heterojunction nanocomposite of α-Fe2O3-CeO2 was decorated with plasmonic Au nanoparticles (Au NPs). The various characterization methods, such as FTIR, UV-vis DRS, XRD, XPS, TEM, EDX, SEM, and PL, were used to determine the properties of the materials, including their morphology, elemental composition, optical properties, band gap energy, and crystalline phase. The nanocomposite of α-Fe2O3-CeO2@Au was utilized to remove Rose Bengal (RB) dye from wastewater using a photocatalytic technique when exposed to visible light. A comprehensive investigation of the impact of the catalyst concentration and initial dye concentration was conducted to establish the optimal photodegradation conditions. The maximum photocatalytic efficiency of α-Fe2O3-CeO2@Au (50 mg L−1) for RB (20 ppm) dye removal was found to be 88.9% in 120 min under visible-light irradiation at a neutral pH of 7 and 30 °C. Various scavengers, such as benzoquinone (BQ; 0.5 mM), tert-butyl alcohol (TBA; 0.5 mM), and ethylenediaminetetraacetic acid (EDTA; 0.5 mM), were used to investigate the effects of different free radicals on the photocatalytic process. Furthermore, the reusability of the α-Fe2O3-CeO2@Au photocatalyst has also been explored. Furthermore, the investigation of the potential mechanism demonstrated that the heterojunction formed between α-Fe2O3 and CeO2, in combination with the presence of deposited Au NPs, led to an enhanced photocatalytic efficiency by effectively separating the photogenerated electron (e−)–hole (h+) pairs.
UTILIZATION OF THE LEARNING CHATBOT SAHABAT CURHAT (SACU) IN OVERCOMING ADOLESCENT MENTAL HEALTH PROBLEMS
Authors: Safitri Dini
Published: May 2024

The current trend of making learning chatbots stimulates the creativity of educators to overcome the learning problems that many teenagers experience today, one of which is the creation of learning chatbots to address adolescent mental health. Currently, many adolescents are experiencing mental problems, it is estimated that there are more than 1 in 7 adolescents aged 10-19 years in the world living with a diagnosis of mental disorders. The purpose of this study is to describe the use of chatbot friends to confide in to overcome mental health problems of adolescents. The research methodology used is qualitative by conducting text analysis on chatbot content and chatbot user comments. The results showed that many teenagers who had mental health problems needed a place to express their feelings. Talking to chatbots is an alternative because they can comfortably express their feelings. Especially during the pandemic, this chatbot application is considered very helpful in overcoming the problems of teenagers who have mental health problems
Sustentabilidad Académica: Una mirada desde las ciencias gerenciales
Authors: Chirino-García Raysa
Published: May 2024

Editorial
Formación en educación inclusiva para mejorar el desempeño docente, Cartavio, Perú
Authors: Valderrama-Puscan Sandra Jaqueline
Published: May 2024

El presente estudio tuvo como propósito evaluar la formación en educación inclusiva para el mejoramiento del desempeño docente en Cartavio, Perú. Para ello, se llevó a cabo una investigación experimental, cuantitativa, con un diseño preexperimental aplicado a una muestra de 30 docentes. Se determinó que el 3,3% de los docentes se encontraban en un nivel de inicio en la prueba del pre test, el 90% en proceso y el 6,7% en el nivel satisfactorio. En cambio, en la prueba de pos-test, el 20% de docentes se mantenía en proceso y el 80% alcanzó el nivel satisfactorio, observándose un cambio significativo. Asimismo, se visualizó un incremento en el promedio desde 46.59 en el pre test hasta 73,62 en el pos test. Se concluyó que el taller de educación inclusiva influyó significativamente en el desempeño de los docentes de las tres instituciones educativas estudiadas en la localidad de Cartavio.
Pedagogía del Amor: Diagnóstico Situacional
Authors: Diaz-Iglesias Yuli Bertha
Published: May 2024

El presente artículo científico ha sido elaborado con la finalidad de determinar cuáles han sido los conocimientos y experiencias de los docentes de instituciones de educación inicial de Paiján en relación con la Pedagogía del Amor. Para dichos fines, se elaboró un cuestionario, el cual fue aplicado a 20 docentes de instituciones educativas de Paiján, de los cuales 10 pertenecían a la zona urbana y 10 a la zona rural. Como conclusión, se pudo determinar que, con relación al conocimiento sobre Pedagogía del Amor, los docentes de educación inicial de zonas urbanas de Paiján se encuentran en ventaja con relación a los docentes de la zona rural. Por tanto, se concluyó que existe una necesidad urgente de capacitación sobre esta pedagogía en los docentes de educación inicial de la zona rural de Paiján.
Fomento del hábito lector en escolares de educación básica en Latinoamérica: una revisión sistemática
Authors: Fernández-Rubio Carol Marivel , Simeón-Aguirre Adita María
Published: May 2024

El hábito lector en la educación básica es un factor relevante para el desarrollo de las capacidades comunicativas de los estudiantes. El propósito de la presente revisión es presentar la condición actual de los hábitos de lectura en estudiantes de educación básica regular en LATAM. La metodología consistió en desarrollar una revisión exhaustiva de artículos científicos relacionados con el tema, en las bases de datos de Scielo y Scopus, utilizando criterios de selección y exclusión. Se recopilaron un total de 11 artículos publicados entre los años 2019 y 2023 para su análisis correspondiente. Se concluyó que las investigaciones relacionadas con el fomento del hábito lector en Latinoamérica se encuentran en una tendencia positiva respecto a su producción; no obstante, muchas de estas publicaciones indican la necesidad de promover la lectura reflexiva, sumado a una propuesta de estrategias que fomenten el hábito lector, puesto que inciden significativamente en los procesos de aprendizaje
Actividad física- deportiva post pandemia en estudiantes adolescentes de una institución educativa pública-Perú
Authors: Acosta-Amador David Moisés , Corvetto-Castro Giovanni Jeffrey
Published: May 2024

Esta investigación analiza los niveles de actividad física – deportiva post pandemia que realizan los estudiantes de un colegio público de Lima. El estudio se realizó bajo el enfoque descriptivo explicativo con diseño fenomenológico. La muestra fue estratificada por las diferencias de edades entre los 120 adolescentes de primero a quinto grado y de 12 a 17 años. Para recopilar datos, se utilizó la escala valorativa Youth Activity Profile. Los resultados indicaron un nivel medio de actividad física- deportiva en las tres modalidades con un 70.8%, un nivel bajo de 17,5% y un nivel alto de 11.67%, siendo las mujeres las de menor práctica. Se concluyó que los estudiantes no practicaban adecuadamente una actividad física que los condujera a mantener una vida activa y saludable, prefiriendo de este modo, las herramientas tecnológicas y la tendencia hacia el sedentarismo
Liderazgo participativo de docentes en educación remota
Authors: Iglesias-Segura Carolina Elizabeth
Published: May 2024

El liderazgo educativo juega un rol fundamental para lograr una educación de calidad. Por tanto, el presente artículo tuvo como objetivo analizar el nivel de liderazgo participativo en los docentes durante la educación remota. La investigación fue no experimental, presentando evidencias de forma descriptiva y fue realizada mediante la revisión sistemática de documentos utilizando el método PRISMA 2020. Se encontró poca información sobre el nivel de liderazgo participativo, pues la mayoría estuvo enfocada en un liderazgo directivo; sin embargo, se demostró, a través de diversos artículos científicos, que la pandemia y el cambio de una educación tradicional a una educación remota han generado un nivel alto en algunas características o cualidades de un líder participativo docente. Por tal motivo, se considera que hay docentes que manifiestan un comportamiento de liderazgo participativo a un nivel moderado durante la educación remota, a pesar de los retos que conlleva.
Programa “Actívate” para mejorar la atención y concentración en estudiantes de secundaria, Perú
Authors: Valdiviezo-Rodríguez Richard Alexander
Published: May 2024

Esta investigación evaluó la aplicación del programa ““Actívate”” para mejorar la atención y concentración de los estudiantes de secundaria de Otuzco. La metodología fue de enfoque cuantitativo y diseño cuasi experimental. Se consideró una población de 402 estudiantes de educación secundaria y una muestra de 120 escolares. Se utilizó como instrumento el test psicométrico d2. Se aplicó la prueba U de Mann-Whitney, donde el promedio del rango post experimental fue ampliamente mayor al promedio del rango post control, lo que significó que el grupo experimental obtuvo un promedio mayor al grupo control. Como resultado, se corroboró que sí existe una diferencia estadísticamente significativa entre las medias del post test del grupo experimental y de control, para un nivel de confianza del 95%. Como conclusión, se dedujo que hubo mejores resultados en los estudiantes que participaron en el programa.