bluuebunny/crossref_metadata_2025 huggingface dataset:
A PDMS-Al Triboelectric Nanogenerator Using Two-Pulse Laser to Enhance Effective Contact Area and Its Application
Authors: Huang You-Jun , Tsai Chi-Hung , Hung Chia-Wei , Chung Chen-Kuei
Published: December 2024

A triboelectric nanogenerator (TENG) is a kind of energy harvester which converts mechanical energy into electrical energy with electron transfer and transport between two different materials during cycling tribology. To increase the contact area between tribo-layers and enhance the output of TENGs, many studies prepare patterned micro/nanostructured tribo-layers using semiconductor processes like lithography and etching at high cost and with long processing times. Here, we propose a new method to quickly produce high-aspect-ratio (HAR) microneedles of polydimethylsiloxane (PDMS) for TENG triboelectric layers using a two-pulse laser-ablated polymethyl methacrylate mold and casting. It has the merit of employing low-cost CO2 laser microfabrication and polymer casting in a feasible way to produce efficient tribo-electric layers. Two-pulse laser ablation is an efficient method for fabricating HAR microstructures with increasing depth at a constant width and density compared to single-pulse ablation. It enhances the depth of microneedles at a constant width and successfully casts PDMS tribo-layers with microneedles that have an aspect ratio 1.88 times higher than those produced by the traditional single-pulse process. The microneedle-PDMS (MN-PDMS) layer is combined with Al sheets to form the MN-PDMS-Al TENG. Compared with the flat PDMS-Al TENG and single-pulse PDMS-Al TENG, the two-pulse TENG enhances open-circuit voltage (Voc) by 1.63 and 1.48 times, the short-circuit current (Isc) by 1.92 and 1.47 times, and the output power by 3.69 and 2.16 times, respectively. This two-pulse ablation method promotes the output performance of TENGs, which has the potential for applications in self-powered devices and sustainable energy.
Religious Racism and the Spiritual Battle in the Name of Faith: The Implications of Demonization for Afro-Brazilian Religions
Authors: Obalerá Lucas
Published: December 2024

Growth in forms of violence germinates from the abject soil of racism and colonialism. This article investigates religious racism in Brazil in the State of Rio de Janeiro through in-depth case studies and published data. First, I analyze how religious racism is utilized as a means to legitimize the demonization and consequent violence directed at Afro-Brazilian religions. Through an analysis of terreiro leaders’ discourses, I present a conception in which demonization and deliberate attacks imply the persecution of ways of being, existing, doing, and living of Black African origin. I use this lens to highlight the role that neo-Pentecostal churches and the theology of spiritual battle play in the resurgence of violence against Afro-religious people. Then, I problematize the harmful relationships between the demonization of terreiros and the extremely warlike conception of Christian faith. Ultimately, I argue that racist theological discourse of demonization manifests itself through verbal, physical, psychological, moral, and patrimonial aggression, putting the existence of terreiro peoples and communities at risk.
The Relationships Between Jews and Muslims in the Past and Present—Pedagogical Implications from an Islamic Religious Education Perspective in a German Context
Authors: Ulfat Fahimah
Published: December 2024

This article explores the historical and contemporary relationships between Jews and Muslims, with a focus on the implications for Islamic religious education. It highlights the complexity of Jewish–Muslim relations, characterized by periods of coexistence and conflict. Early Islamic history reveals an inclusive community of believers encompassing pious Jews and Christians, challenging modern perceptions of inherent antagonism. The article examines the evolution of these relationships, noting significant changes influenced by political dynamics. In Germany, political discourses further shape mutual perceptions, often exacerbating tensions between Jewish and Muslim communities. Educationally, the article advocates for addressing distorted perspectives and emphasizes the value of intertextual analysis of the Quran and the Torah.
Extended Operational Space Kinematics, Dynamics, and Control of Redundant Serial Robots
Authors: Haug Edward J. , De Sapio Vincent , Peidro Adrian
Published: December 2024

A recently developed differential geometric representation of redundant serial robot kinematics is employed to create a new extended operational space dynamics and control formulation that explicitly accounts for redundant robot degrees of freedom. This formulation corrects deficiencies in kinematics and dynamics of redundant serial robots that have relied for over half a century on error-prone generalized inverse velocity-based kinematics for redundancy resolution. New ordinary differential equations of robot operational space dynamics are obtained, without the need for ad hoc derivation, in terms of task coordinates and self-motion coordinates that represent robot redundancy. A new extended operational space control approach is presented that exploits ordinary differential equations of motion in terms of task and self-motion coordinates, enabling enforcement of desired output trajectories, obstacle avoidance, and performance constraints. Four examples are presented with a one-degree-of-redundancy robot that demonstrate the validity and superior performance of the new formulation, relative to the traditional task space method used for redundant serial robot control. Finally, an example with eight degrees of redundancy is presented that further illustrates superior performance of the new operational space formulation.
Mapuche Worldview, Territory, and Language: Narratives of Mapuche Speakers and Elders
Authors: Maldonado García Fabiola , Sanhueza Henríquez Susan , Aroca Toloza Carolina
Published: December 2024

This article addresses the relationship between worldview, territory, and language among the Mapuche people. Our research aims to explore, through the voices of Mapuche elders, the sociocultural, political, and territorial knowledge that guides the teaching and transmission of Mapuzugun to new generations. In alignment with the proposed objective, we have adopted a socio-critical approach to explore Mapuche identity through the territorial and communal dimensions that underpin linguistic revitalization. The findings reveal that the elders possess a vast source of knowledge, serving as primary cultural bearers through epistemology centered on the unity of language and territory.
Activation and Inheritance: Farmers’ Willingness to Participate in Agricultural Heritage Tourism Development—A Case Study on the Nanguo Pear Cultivation System in Anshan, China
Authors: Dong Fengli , Zhang Yue , Wang Zhaoguo
Published: December 2024

Tourism is an important method for the revitalization and utilization of agricultural cultural heritage, with farmers playing a pivotal role in the development of agricultural heritage tourism (AHT). The implementation of AHT from the lens of farmer participation is essential for fostering the sustainable growth of agricultural cultural heritage. Based on 257 questionnaires of farmers in two villages using Anshan Nanguo pear cultivation systems, this study uses structural equation modeling (SEM) to explore the mechanism influencing farmers’ willingness to participate in AHT development. The findings reveal that (1) participation opportunity, participation ability, and identity recognition have significant positive effects on participation in AHT development willingness, while participation motivation has no significant positive effect on participation in AHT development willingness; (2) participation opportunity, participation ability, and identity recognition have significant positive effects on participation motivation; (3) participation motivation has a partial mediating effect among participation opportunity, participation ability, identity recognition, and participation in AHT development willingness. The strategies and recommendations put forth in this article have substantial practical implications for enhancing farmers’ willingness to participate in AHT development. Furthermore, this research contributes to broadening the research perspectives on AHT and promoting the sustainable preservation and tourism utilization of agricultural heritage within community participation frameworks.
Entrepreneurial Capabilities for Business Sustainability in Software Industries
Authors: Kim Jaehyeon , Cho Sung Eui
Published: December 2024

Purpose: This study examines the influence of entrepreneurial capabilities on innovation and firm performance in software industries. Research Design, Data, and Methodology: Six entrepreneurial capabilities are investigated for their impact on software firms’ innovation and firm performance. The study utilizes empirical data collected from 102 software firm executives engaged in business domains. Results: Of the entrepreneurial capabilities, creative thinking, communication capability, strategic capability, and industry knowledge influence firm performance mediation of innovation. Additionally, market insight directly impacts firm performance while technological skills does not significantly affect firm innovation and performances. Conclusions: Although technological capabilities significantly influence the entrepreneurial intentions of prospective entrepreneurs, when it comes to the innovation and firm performances of existing companies, the critical factors shift toward creative thinking, communication capability, industry knowledge, strategic capabilities, and market insight.
Sustainability Education as a Predictor of Student Well-Being Through Mindfulness and Social Support: A Mediated Moderation Model
Authors: Gu Yuanhai , Sun Bo , He Jun , Huang Wenjuan
Published: December 2024

The students of the world face well-being-related issues due to tight competition among the students of higher educational institutions. The existing research suggests that sustainability education is helpful to enhance student well-being. To explore this relationship, the present study assesses the direct relationships between sustainability education and mindfulness, mindfulness and student well-being, and social support and student well-being. Moreover, this research examines the mediating role of mindfulness in the relationship between sustainability education and student well-being. Additionally, this research checks the moderating role of social support between mindfulness and student well-being. Through a purposive sampling technique, cross-sectional data were collected from 413 students studying in Beijing, China. This study uses SPSS v23 and SmartPLS v4.0.8 for data analysis. The results of this study show that all the direct relationships remain significant. Similarly, mindfulness significantly mediates the relationship between sustainability education and student well-being. However, the moderating relationship of social support remains non-significant. This study provides a unique theoretical combination of mindfulness-to-meaning theory and social support theory to assess the relationship among sustainability education, mindfulness, social support, and student well-being in the context of university education in Beijing, China. This research provides actionable insights for academicians and policymakers to design sustainability-focused curricula to enhance student love for the environment, which facilitates mindfulness and well-being, in the presence of social support.
Cooperative Impact of the Digital Sector, Eco-Friendly Policies, and Sophisticated Economic Development: A Study Drawing from China’s Practices
Authors: Li Xiaomei , Deng Huchuan , Yu Xuanrui , Yu Yang
Published: December 2024

Amid the rapidly changing digital environment and the growing flow of information, the digital economy has become a significant driving force behind economic progress. At the same time, governments worldwide are increasingly prioritizing environmental protection and green development, making the challenge of harmonizing economic growth with environmental protection to achieve high-quality development, a critical issue. This study, using data from 285 prefecture-level cities in China, places the digital economy, environmental regulations, and high-quality economic development in the same framework to explore their interconnections. Furthermore, machine learning and the SHAP (Shapley Additive Explanations) model were employed to analyze the complex nonlinear effects and interactions between these factors, clarifying the significance of various parameters. The findings reveal significant regional differences in high-quality economic growth, digital industrialization, industrial digitization, digital governance, data valorization, and environmental regulations across China, with generally low overall levels. Digital governance, industrial digitization, and digital industrialization all contribute to high-quality economic development, with digital industrialization having the most significant impact. However, challenges such as data privacy concerns and inadequate governance can hinder the positive effects of data valorization on high-quality economic progress.
Effects of the “Urban Double Repairs” Policy on Urban Land-Use Carbon Emission Efficiency
Authors: Zhao Tengfei , Zhu Jianlin , Jian Zhiyu , Zhou Xian , Zhang Puwei
Published: December 2024

Today, the ecological and environmental risks of increasing energy consumption and carbon emissions (CEs) are becoming increasingly prominent. The “Urban Double Repairs” (UDR) policy aims to enhance urban ecosystems, optimize urban land use, and improve urban land-use carbon emission (LUCE) efficiency. Drawing on panel data of the statistical yearbooks from 2006 to 2021 representing 285 prefecture-level cities in China, this study uses the non-expected output slacks-based measure (NEO-SBM) model and the progressive difference-in-differences (DID) model to explore the effects and intrinsic mechanisms of the UDR policy on urban LUCE efficiency, aiming to provide references for the greening transformation of land-use patterns (LUPs). The research results indicate that the UDR policy significantly promotes urban LUCE efficiency, which was confirmed through a series of robustness tests. The findings of the mechanism analysis indicate that the UDR policy can enhance urban LUCE efficiency by promoting the green upgrading of traditional industries. The positive effects of this policy on LUCE efficiency exhibit a short-term lag period of 2 years. The findings of the heterogeneity analysis reveal that the effects of the UDR policy on urban LUCE efficiency are heterogeneous and depend on the urban location, resource endowment, and scale. Specifically, the effects are more significant in eastern cities, large-scale cities, and non-resource-based (NRB) cities. According to the research findings, each city should implement the UDR policy according to local conditions, develop differentiated low-carbon transformation methods, and actively guide the upgrading of green industrial structures. These measures will significantly facilitate the green and efficient use of urban land resources in China.
Analyzing the Effectiveness of Carbon Pricing Instruments in Reducing Carbon Emissions in Major Asian Economies
Authors: Finley Aaron , He Wei , Huang Hui , Hon Chitin
Published: December 2024

Carbon Pricing Instruments (CPIs), such as Carbon Taxes and Emission Trading Schemes (ETSs), have been launched in several countries, primarily in Europe and North America, as a means of limiting the emissions of greenhouse gases (GHGs) which have been known to cause climate change. The adoption of these measures in Asia has been controversial, with many arguing that they would limit economic development in the region. We review the CPIs of 18 Asian economies, 7 of which have adopted a CPI during our review period from 1990 to 2021. We perform a comparative analysis of the economies in Asia, applying the Kaya Identity to decompose the variables affecting carbon emissions and the Nearest Neighbor Matching technique to compare the effect that CPIs have on countries adopting these policies relative to other jurisdictions. We found a positive and significant effect of CPIs on reducing carbon emissions in the Asian countries compared in our study. This offers crucial insights for policymakers, stressing the effectiveness of CPIs in balancing environmental sustainability with economic development in the region.
Exploration of Agronomic Efficacy and Drought Amelioration Ability of Municipal Solid-Waste-Derived Co-Compost on Lettuce and Maize
Authors: Kamanga Rowland Maganizo , Matuntha Isaiah , Chawanda Grace , Phiri Ndaziona Mtaya , Chasweka Taonga , Dzimbiri Chisomo , Stevens Joab , Msimuko Mathews , Nyasulu Mvuyeni , Chiwasa Hastings , Sefasi Abel , Mwale Vincent Mgoli , Chimungu Joseph Gregory
Published: December 2024

Organic soil amendments, such as composts, mitigate the negative impacts on the environment that are caused by poor waste management practices. However, in the sub-Saharan African region, and Malawi in particular, studies investigating the agronomical efficacy and their ability to ameliorate drought stress when used as a soil amendment are minimal. This study aimed to evaluate the efficacy of sewage sludge and municipal solid waste (MSW) co-compost to ameliorate drought stress and improve crop productivity. Three experiments were conducted (i) to determine optimal application rate for co-compost, (ii) to evaluate yield response of maize and lettuce to co-compost application under contrasting soils, and (iii) to assess the effect of co-compost under water-limited conditions. Our results indicate that an application rate of 350 g co-compost per station was the most effective. This rate is 50% and 37% lower than the currently recommended rate for applying conventional compost to green vegetables and maize, respectively. In addition, under drought conditions, the co-compost application enhanced growth in lettuce, with less wilting, increased biomass and yield, approximately 130% greater leaf yield, and a 138% improvement in root growth. Furthermore, the relative root mass ratio (RRMR) was enhanced with the co-compost application by 103% under drought stress. This suggests that the co-compost amendment resulted in a greater allocation of biomass to the roots, which is a crucial morphological attribute for adapting to drought conditions. The concentration of K in the leaves and roots of plants treated with co-compost was significantly increased by 44% and 61%, respectively, under drought conditions, which may have contributed to osmotic adjustment, resulting in a significant increase in leaf relative water content (RWC) by a magnitude of 11 times. Therefore, in light of the rising inorganic fertilizer costs and the limited availability of water resources, these results demonstrate the potential of MSW and sludge co-composting in ameliorating the drastic effects of water- and nutrient-deficient conditions and optimizing growth and yield under these constraining environments.
Coupling Coordination and Driving Mechanisms of Regional Protection and Development in Traditional Villages of the Loess Hilly and Gully Region, Northern Shaanxi Province
Authors: Ren Yujie , Zhao Weiwei , Zhang Yuhan , Li Yunrong , Jia Shanshan
Published: December 2024

With the rapid urbanization in China, traditional villages are undergoing simultaneous construction and destruction, making it crucial to scientifically balance the protection and development of these villages. The Loess Hilly Area of Northern Shaanxi, one of the most severely eroded regions in the world, was chosen as the study area. Socio-economic, land use, and natural ecological data from 152 traditional villages in this area were analyzed. First, an evaluation model was developed to assess the comprehensive level of protection and development in these villages. Next, a coupling coordination model and spatial autocorrelation model were employed to measure the coordination level and spatial distribution of protection and development. Finally, a coordination influence model was combined with a geographically weighted regression model to reveal the driving mechanisms promoting the coupling coordination between protection and development. The results indicate that (1) the protection and development levels of traditional villages in the study area exhibit contrasting patterns of “high in the east and low in the west” and “high in the west and low in the east”, respectively; (2) nearly half of the regions show a low level of coordination between protection and development, with a few counties and districts in the east achieving better coordination; and (3) the spatial variation in the coupling of protection and development is influenced by regional economic capacity, social development, resource endowment, and policy inclination, with various factors influencing the coordination in different ways. This study helps to further elucidate the relationship between the protection and development of traditional villages and provides valuable references for the protection and development of traditional villages in other ecologically fragile areas.
Impact of Temperature on the Efficiency of Monocrystalline and Polycrystalline Photovoltaic Panels: A Comprehensive Experimental Analysis for Sustainable Energy Solutions
Authors: Hudișteanu Valeriu-Sebastian , Cherecheș Nelu-Cristian , Țurcanu Florin-Emilian , Hudișteanu Iuliana , Romila Claudiu
Published: December 2024

The negative effect of the operating temperature on the functioning of photovoltaic panels has become a significant issue in the actual energetic context and has been studied intensively during the last decade. The very high operating temperatures of the photovoltaic panels, even for lower levels of solar radiation, determine a drop in the open-circuit voltage, with consequences over the electrical power generated and PV-conversion efficiency. The temperature effect over the efficiency of monocrystalline and polycrystalline photovoltaic panels by using a double-climatic chamber and a solar simulation device was studied experimentally for two photovoltaic panels, one monocrystalline and another polycrystalline, with the same nominal power of 30 Wp. The double-climatic chamber used is composed of two separate rooms, a cold and a hot one, while the PV panel is placed as a barrier between them. The study is focused on establishing the effect of raising the temperature of PV panels over electrical parameters: voltage, current, and power produced and for efficiency and fill factor to promote sustainable energy consumption. The findings highlight the positive impact of cooling on enhancing system efficiency, with the primary focus on quantifying its overall performance. The operating temperature is controlled by the flow of air on the backside of the PV panel inside the cold room. The level of radiation studied corresponds to a vertical integration of PV panels in building façades. The coefficient of the mean variation of the efficiency with the photovoltaic panels’ temperature was −0.52%/°C; for voltage, −0.48%/°C, and for current, +0.10%/°C.
Research on the Structural Characteristics and Influencing Factors of Digital Service Trade Networks in RCEP Member States
Authors: Deng Xiaole , Zhang Fang , Lin Shuyi , Qiu Wei
Published: December 2024

Using the digital service trade data of RCEP member countries from 2006 to 2021, this study analyzes the structural characteristics and network centrality of the overall and segmented industry trade networks, applying social network analysis based on social network theory. The results show that the overall and segmented industry trade networks of RCEP member countries have exhibited a gradual increase in network structure stability, accompanied by the emergence of pronounced ‘small-world’ characteristics; Singapore and Japan are at the center of the network. Moreover, the quadratic assignment procedure (QAP) model is applied to explore the factors affecting networks based on digital service trade data in 2006 and 2021. We established that institutional distance and geographic distance act as impediments to the development of trade in digital services in RCEP member countries; conversely, common language facilitates its development. For two countries with more similar levels of economic development, it is easier to establish trade links and increase trade value in sectors such as insurance and pension services, and it is also easier to establish trade links in industries such as communication, computer, and information (ICT) services, but the effect on trade value is not significant. For two countries with more similar levels of digital infrastructure, it is easier to establish trade links and increase trade value in industries such as financial service, and it is also easier to establish trade links in industries such as insurance and pension services, but the effect on trade value is not significant. In response to this study’s results, we propose five recommendations to enhance the development of China’s digital service trade.
Sustainable Degradation of Methyl Violet by Plasma Bubbling Array: Performance, Degradation Pathway, and Potential Toxicity
Authors: Huang Jun , Xiao Yujun , Fu Lei , Yu Qiuting , Gong Teng , Tan Menghao , Luo Qianqian , Li Mengchao , Tao Yuan , Xu Wenyuan , Wang Xingquan , Chen Wei
Published: December 2024

A plasma bubbling array (PBA) reactor was used to degrade methyl violet (MV) dye, and the effects of input voltage, frequency, and treatment time on MV removal were investigated. Through experimental methods and response surface methodology (RSM), the interactional influences between three parameters were examined. In the actual experiments, when the discharge voltage was set to 4.0 kV and the treatment time was 12 min, the PBA reactor exhibited a high degradation rate (96.15%) and notable energy efficiency (3.16 g/kWh). Under the optimal simulation parameters, the predicted degradation rate of MV is maximized at 98.32%, with only a 2.17% deviation from the actual value. Subsequently, the results of reactive oxygen and nitrogen species (RONS) analysis indicate that superoxide radicals (·O2−) and ozone (O3) have the greatest impact on MV degradation. The degradation pathway analysis and toxicity evaluation experiments of the solution before and after treatment showed that the toxicity of the solution decreased with the extension of reaction time, and the treated solution may be beneficial to seed germination. Overall, these findings provide valuable insights into the use of plasma technology for the efficient, economical, and sustainable removal of dyes from water.
Oral Yeast-Cell Microcapsule-Mediated DNA Vaccines Against Clostridium perfringens Induce Effective Intestinal Immunity and Modulate Gut Microbiota
Authors: Du Lihong , Jia Shaona , Zhang Wenqiang , Cai Chang , Liu Yufei , Wang Chuhan , Zhu Yufei , Ma Xiaotao , Yang Xiaojun , Wei Zehui , Xu Kun
Published: December 2024

Background/Objectives:Clostridium perfringens is a common opportunistic pathogen that causes gastrointestinal diseases in livestock and poultry. Our preliminary research has demonstrated that administering oral yeast-cell microcapsule (YCM)-mediated DNA vaccines can effectively stimulate mucosal immunity, thereby preventing the occurrence of gastrointestinal diseases. Methods: In this study, the C. perfringens α-toxin gene was first cloned and the H126G and C-terminal (C247–370) mutations were created. The corresponding DNA vaccine cassettes driven by a CMV promoter were constructed and were cloned into a yeast shuttle vector. Recombinant yeast strains transformed with these shuttle vectors were then prepared as the YCMs for the subsequent oral immunization of mice. Results: Oral administration of recombinant YCMs can induce an effective immune response, and the H126G YCM performed much better than C247–370. Further evidence suggested that YCM administration may contribute to modulating the gut environment by altering gut microbiota and enhancing bacterial richness. Conclusions: Our study indicated that the oral administration of YCM-mediated DNA vaccines can induce effective intestinal immunity and may also alter the composition of the gut microbiota, suggesting a promising candidate vaccine strategy against C. perfringens-induced animal diseases.
Antibody Avidity Maturation Following Booster Vaccination with an Intranasal Adenovirus Salnavac Vaccine
Authors: Astakhova Ekaterina A. , Baranov Konstantin O. , Shilova Nadezhda V. , Polyakova Svetlana M. , Zuev Evgeniy V. , Poteryaev Dmitry A. , Taranin Alexander V. , Filatov Alexander V.
Published: December 2024

Background: The COVID-19 pandemic has led to the rapid development of new vaccines and methods of testing vaccine-induced immunity. Despite the extensive research that has been conducted on the level of specific antibodies, less attention has been paid to studying the avidity of these antibodies. The avidity of serum antibodies is associated with a vaccine showing high effectiveness and reflects the process of affinity maturation. In the context of vaccines against SARS-CoV-2, only a limited number of studies have investigated the avidity of antibodies, often solely focusing on the wild-type virus following vaccination. This study provides new insights into the avidity of serum antibodies following adenovirus-based boosters. We focused on the effects of an intranasal Salnavac booster, which is compared, using a single analytical platform, to an intramuscular Sputnik V. Methods: The avidity of RBD-specific IgGs and IgAs was investigated through ELISA using urea and biolayer interferometry. Results: The results demonstrated the similar avidities of serum antibodies, which were induced by both vaccines for six months post-booster. However, an increase in antibody avidity was observed for the wild-type and Delta variants, but not for the BA.4/5 variant. Conclusions: Collectively, our data provide the insights into antibody avidity maturation after the adenovirus-based vaccines against SARS-CoV-2.
Correction: Xu et al. Dynamic Behavior and Mechanism of Transient Fluid–Structure Interaction in Viscoelastic Pipes Based on Energy Analysis. Water 2024, 16, 1468
Authors: Xu Ying , Zhang Shuang , Zhou Linfeng , Ning Haoran , Wu Kai
Published: December 2024

There were errors in the original publication [...]
Risk Assessment of Bridge Damage Due to Heavy Rainfall Considering Landslide Risk and Driftwood Generation Potential Using Convolutional Neural Networks and Conventional Machine Learning
Authors: Ren Fudong , Isobe Koichi , Ando Miku
Published: December 2024

This study addresses the assessment of bridge damage risks associated with heavy rainfall, focusing on landslide susceptibility and driftwood generation potential. By integrating convolutional neural networks (CNNs) with traditional machine learning methods, the research develops an advanced predictive framework for estimating driftwood accumulation at river bridges—a recognized challenge in disaster management. Concentrating on the Tokachi River basin in Hokkaido, Japan, the research utilizes diverse environmental and geographical data from authoritative sources. The findings demonstrate that the innovative approach not only enhances the accuracy of driftwood volume predictions but also distinguishes the effectiveness of CNNs compared to conventional methods. Crucially, areas prone to landslides are identified as significant contributors to driftwood generation, impacting bridge safety. The study underscores the potential of machine learning models in improving disaster risk assessment, while suggesting further exploration into real-time data integration and model refinement to adapt to changing climate conditions and ensure long-term infrastructure safety.
Effects of Sesuvium portulacastrum Floating Treatment Wetlands on Nitrogen Removal and Carbon Sequestration in Aquaculture Water
Authors: Zheng Shenghua , Wu Man , Zhan Liyang , Lin Yongqing , Yang Miaofeng , Zheng Huidong , Yang Fang , Luo Donglian , Wang Xin
Published: December 2024

Sesuvium portulacastrum floating treatment wetlands (FTWs) are effective at removing nitrogen and phosphorus, adsorbing heavy metals, and removing organic pollutants from aquaculture wastewater, and thus improve fish farming productivity. In this study, an S. portulacastrum FTW was used in a simulated grouper aquaculture experiment for 40 days. The FTW removed 1~3 mg/L of dissolved inorganic nitrogen (DIN) throughout the experimental period as well as the following toxic nitrogen species: 88% NO2−-N in the middle stage and 90% TAN (total ammonia nitrogen) in the middle stage. The health of the groupers was promoted and the weight of each grouper was 8% higher than those in the control group in the end. Compared with that of the control group, the carbon sequestration of the aquaculture ecosystem was also increased by S. portulacastrum FTW because more carbon was held in the biomass, including through the growth of the plant mass of the FTW, 109 g C/pond, and a reduction in fishing catch losses, 442 g C/pond. Therefore, S. portulacastrum FTW can serve as a potential technology for improving the water environment quality of feeding ponds and contributing to carbon sequestration in aquaculture systems.
Assessing the Effect of Bias Correction Methods on the Development of Intensity–Duration–Frequency Curves Based on Projections from the CORDEX Central America GCM-RCM Multimodel-Ensemble
Authors: Mendez Maikel , Calvo-Valverde Luis-Alexander , Hidalgo-Madriz Jorge-Andrés , Araya-Obando José-Andrés
Published: December 2024

This work aims to examine the effect of bias correction (BC) methods on the development of Intensity–Duration–Frequency (IDF) curves under climate change at multiple temporal scales. Daily outputs from a 9-member CORDEX-CA GCM-RCM multi-model ensemble (MME) under RCP 8.5 were used to represent future precipitation. Two stationary BC methods, empirical quantile mapping (EQM) and gamma-pareto quantile mapping (GPM), along with three non-stationary BC methods, detrended quantile mapping (DQM), quantile delta mapping (QDM), and robust quantile mapping (RQM), were selected to adjust daily biases between MME members and observations from the SJO weather station located in Costa Rica. The equidistant quantile-matching (EDQM) temporal disaggregation method was applied to obtain future sub-daily annual maximum precipitation series (AMPs) based on daily projections from the bias-corrected ensemble members. Both historical and future IDF curves were developed based on 5 min temporal resolution AMP series using the Generalized Extreme Value (GEV) distribution. The results indicate that projected future precipitation intensities (2020–2100) vary significantly from historical IDF curves (1970–2020), depending on individual GCM-RCMs, BC methods, durations, and return periods. Regardless of stationarity, the ensemble spread increases steadily with the return period, as uncertainties are further amplified with increasing return periods. Stationary BC methods show a wide variety of trends depending on individual GCM-RCM models, many of which are unrealistic and physically improbable. In contrast, non-stationary BC methods generally show a tendency towards higher precipitation intensities as the return period increases for individual GCM-RCMs, despite differences in the magnitude of changes. Precipitation intensities based on ensemble means are found to increase with the change factor (CF), ranging between 2 and 25% depending on the temporal scale, return period, and non-stationary BC method, with moderately smaller increases for short-durations and long-durations, and slightly higher for mid-durations. In summary, it can be concluded that stationary BC methods underperform compared to non-stationary BC methods. DQM and RQM are the most suitable BC methods for generating future IDF curves, recommending the use of ensemble means over ensemble medians or individual GCM-RCM outcomes.
PEMBANGUNAN APLIKASI PENDETEKSI KERAMAIAN DI RUANG PUBLIK DALAM PENERAPAN NEW NORMAL DI KOTA BANDUNG
Authors: Firdaus Riyadh Rachman , Hardyanto Chrismikha
Published: December 2024

Ruang publik merupakan tempat dimana suatu masyarakat dapat berkumpul untuk meraih tujuan tertentu dan menjadi suatu kebutuhan warga kota Bandung dalam beraktivitas terutama pada saat menghabiskan waktu liburnya. Tetapi semua aktivitas warga di ruang publik menjadi terganggu semenjak adanya pandemi Covid-19. Pandemi yang telah berlangsung selama 2 tahun ini memberikan dampak pada banyak sektor, salah satunya adalah bagaimana aktivitas masyarakat di ruang publik. Sehingga masyarakat harus bisa berkompromi, hidup berdampingan dan berdamai dengan covid-19 agar tetap produktif dimana kondisi tersebut disebut dengan new normal. Sebagai bentuk penerapan new normal, salah satunya adalah pemberlakuan social distancing. Namun saat ini muncul masalah yaitu masyarakat sering tidak mengetahui bagaimana kondisi keramaian dari ruang publik di kota Bandung. Adapun sumber informasi yang biasa masyarakat gunakan untuk mengecek kondisi keramaian ruang publik adalah dengan menggunakan media sosial seperti Instagram. Pembangunan aplikasi untuk mengatasi hal tersebut menggunakan metode perangkat lunak prototyping. Aplikasi berbasis android yang dapat membantu masyarakat mengatasi hal tersebut. Dan hasilnya akan dituangkan dalam Pembangunan Aplikasi Pendeteksi Keramaian di Ruang Publik Dalam Penerapan New Normal di Kota Bandung. Aplikasi ini akan memanfaatkan teknologi gps dan geofencing sebagai parameter pengguna ketika mengunjungi ruang publik dan sebagai pendeteksian tingkat keraiamaiannya.
SISTEM INFORMASI MANAJEMEN PENERIMAAN PEGAWAI MAGANG DI CV. TRIVECTA COMMINDO
Authors: Rasyid Sendhi Anshari , Susanto Rani
Published: December 2024

CV Trivecta Commindo merupakan sebuah perusahaan yang bergerak dalam bidang jasa dan komunikasi kreatif. Perusahaan ini terbagi menjadi 3 departemen yaitu sebuah open space yang bernama SPASIAL, toko yang bernama Norm dan kantin yang bernama Four-Calendar Canteen. Saat ini perusahaan ini memiliki 73 orang pegawai yang terdiri dari pegawai tetap dan pegawai magang. Setiap 3 bulan sekali, perusahaan memiliki program magang mahasiswa untuk mengisi kekosongan jabatan di departemen SPASIAL. Proses seleksi pegawai magang saat ini hanya melihat nilai hasil wawancara saja dan tidak memperhatikan kesesuaian jurusan mahasiswa yang melamar. Hal ini mengakibatkan perusahaan kesulitan dalam memilih calon pegawai magang yang akan diterima agar sesuai dengan kebutuhan jabatan. Sistem Informasi Manajemen Penerimaan Pegawai Magang dapat membantu memberikan rekomendasi bagi perusahaan dalam menentukan pegawai magang yang sesuai dengan kebutuhan jabatan di perusahaan. Metode TOPSIS (Technique for Order Preference by Similarity of Ideal Solution) adalah metode pengambilan keputusan multikriteria yang digunakan untuk pengambilan keputusan calon pegawai magang yang sesuai dengan kebutuhan perusahaan. Hasil dari penelitian ini dapat mempermudah perusahaan khususnya kepala bagian kepegawaian dalam menentukan pegawai magang yang akan diterima agar sesuai dengan kebutuhan jabatan di perusahaan.
RANCANG BANGUN APLIKASI AUGMENTED REALITY SEBAGAI SIMULASI PRODUK UBIN KEPADA KONSUMEN TOKO BAHAN BANGUNAN BERBASIS ANDROID
Authors: Maulana Sandi , Suryana Taryana
Published: December 2024

Munculnya ragam desain ubin dan cat mendorong pihak toko dalam menyediakan ragam produk tersebut. Namun, banyaknya ragam produk ubin dan cat juga membuat konsumen kesulitan memilih desain yang sesuai dengan ekspektasi mereka, terutama jika terjadi ketidakcocokan produk yang akan dipakai. Untuk mengatasi masalah ini, toko bahan bangunan perlu memberikan informasi serta gambaran produk yang dapat mempengaruhi kepuasan konsumen. Salah satu solusi yang dapat diambil adalah dengan menggunakan teknologi Augmented Reality (AR) dalam memilih produk ubin lantai pada toko bahan bangunan. oleh sebab itu pada penilitian ini dibangun aplikasi Augmented Reality (AR) sebagai simulasi produk ubin kepada konsumen toko bahan bangunan berbasis android. Aplikasi ini dibangun menggunakan Unity 3D juga package AR Fondation dan AR Interaction Toolkit yang berfungsi dalam mensimulasikan serta berinteraksi objek Augmented Reality (AR). Dengan aplikasi Augmented Reality (AR) ini, konsumen dapat melihat langsung gambaran penerapan produk secara realistis, sehingga dapat memudahkan mereka dalam memilih produk yang tepat. Hal ini juga dapat membantu pegawai toko dalam memberikan penjelasan dan saran kepada konsumen, serta meminimalkan risiko ketidakcocokan produk.
Pemberdayaan Masyarakat Desa Margosari melalui Eco- Printing dan E-Commerce
Authors: Narulita Siska , Oktaga Andreas Tigor , Prihati Prihati
Published: December 2024

Di Desa Margosari, Kelurahan Limbangan, Kabupaten Kendal, Jawa Tengah, tepatnya di Dukuh Cemangklek, terdapat kelompok usaha ibu-ibu yang memproduksi batik tulis dan batik cap. Namun, semenjak pandemi Covid-19, usaha batik tersebut mati suri, dikarenakan keterbatasan dana yang dimiliki. Pengadaan bahan produksi yang cukup sulit karena faktor lokasi juga menjadi penyebab produksi batik terhenti. Melalui kegiatan ini, dilakukan pelatihan kepada ibu-ibu masyarakat Desa Margosari, yaitu pelatihan teknik eco-printing melalui media kain dan teknik digital marketing melalui penggunaan platform e-commerce yang dikembangkan oleh mahasiswa Program Studi S1 STI. Diharapkan kegiatan ini mampu menghidupkan kembali usaha yang dimiliki ibu-ibu masyarakat Desa Margosari, sehingga ibu-ibu masyarakat Desa Margosari dapat membantu perekonomian keluarga dan perekonomian daerah secara umum. Ibu-ibu masyarakat Desa Margosari sebagai peserta kegiatan PKM telah mendapatkan sosialisasi pengenalan teknik eco-printing dan e-commerce untuk proses pemasaran produk, serta pelatihan teknik eco-printing menggunakan media kain (tote bag). Peserta telah mengetahui apa itu eco-printing dan e-commerce. Dalam pelatihan teknik eco-printing, peserta dapat memanfaatkan bahan-bahan yang ada di lingkungan sekitar. Seluruh peserta sepakat bahwa teknik eco-printing sangat mudah dilakukan dan biaya yang dibutuhkan tidak terlalu banyak, selain itu e-commerce juga dapat membantu dalam penjualan atau pemasaran produk hasil eco-printing.
Pelatihan Preventif Maintenance dan Repair terhadap Peralatan Administrasi untuk Mengatasi Kendala Pelayan Publik
Authors: Kusuma Yudha Adi , Aryantha A. I Made , Luthfianto Saufik , Susilo Dody
Published: December 2024

Kegiatan preventif maintenance dan repair memberikan kontribusi dalam pencegahan masalah dalam pelayanan publik di lingkup desa. Tidak terkecuali pada Desa Dawuhan, Kecamatan Pilangkenceng, Kabupaten Madiun. Kondisi yang dialami oleh Desa Dawuhan bila terjadi masalah terhadap peralatan administrasi akan menghentikan proses pelayanan. Sebisa mungkin hal tersebut harus dihindari. Melalui kegiatan pengabdian kepada masyarakat dicarikan solusi dalam mengatasi masalah tersebut. Hasil uji statistik menunjukkan bahwa kegiatan pengabdian memberikan kontribusi pada peningkatan pengetahuan bagi mitra pengabdian.
Peningkatan Kualitas Informasi Kelompok Tani Binaan Balai Penyuluhan Pertanian Pandak Melalui Aplikasi Identitas Digital Dutataniku
Authors: Wibowo Argo , Delima Rosa , Chrismanto Antonius Rachmat
Published: December 2024

Agriculture is one of the most important area in Indonesia. The agricultural area is also important in supporting national food security. Indonesia has quite a lot of potential for farmer resources, but the problem is that regeneration of millennial farmers has decreased. The purpose of this community service is the implementation of the DutaTani system which has been developed since 2016. Dutataniku is one of the applications in the DutaTani system in the form of a modern agricultural portal that starts from processing farmer information structures and learning information. UKDW Faculty of Information Technology together with the partner of the Balai Penyuluh Pertanian (BPP) Pandak Bantul invite young farmers to participate in advancing the agricultural area through training on the use of the Dutataniku application. Participatory learning methods are used in learning activities with farmers so that it can be seen how well the application is and its benefits for farmers. At the end of the activity, the use of applications and surveys was carried out with a success rate of application functionality at 90.95% and 83% of users agreed that the Dutataniku application was able to bring users better in managing and accessing agricultural information. This is of course related to improving the quality of information managed by users.
Assessing the impact of salinity stress on some morpho-physiological traits of two chickpea genotypes under hydroponic conditions
Authors: Sobh Mawia , Basal Oqba , Al-Ouda Ayman Shehada , Veres Szilvia
Published: December 2024

Evaluating the performance of crop species to salinity stress is considered an intricate task due to differences in performance, response and susceptibility at different phenological stages of chickpea crop. Assessment of the performance of chickpea genotypes in response to NaCl-induced salinity stress at the initial vegetative phase is of great importance to have a crystal idea about the threshold level of tolerance. An experiment was carried out under hydroponic conditions to evaluate the performance of two chickpea genotypes (ELMO and ORION), in response to different salinity levels (0, 25, 50 and 75 mM NaCl) as factorial arrangement under completely randomized design with three replications. The average of shoot and root dry matter weight was significantly higher for the ELMO genotype at the control treatment (1.143, 0.4133 g respectively), while it was significantly lower in the two genotypes ORION and ELMO at the highest salinity level (0.267 and 0.2700; 0.0433 and 0.0533 g respectively). The root to shoot ratio was significantly higher in both genotypes in the control and the lowest salt level (25 mM NaCl), without significant differences among them (47.98, 43.30, 37.10 and 36.25% respectively). The relative water content and stomatal conductance were significantly higher in the ORION genotype (88.01%; 335.40 mmol m-2 s-1) compared to ELMO (84.09%; 299.10 mmol m-2 s-1), and increasing salinity level caused a proportional decline in both traits, where they were significantly lower at the highest salt level (75Mm) (77.45%; 87.50 mmol m-2 s-1). Results indicate genotypic variability in response to NaCl-induced salinity stress under hydroponic conditions and the physiological traits are more expressive and reliable as selection criteria than morphological ones.
Epidemiologia da colelitíase e colecistite na infância: análise das internações hospitalares e da relação com a obesidade infantil em uma década
Authors: Ribas Julia Fernandes , Lima Maria Eduarda Queiroz Borges , Leite Mariana Garcia de Oliveira , Dias Larissa Lucchesi , Souza Giovanna Garozi de , Rossi Arielle Servato , Leite Larissa Soares , Silva Letícia Mesquita
Published: December 2024

Considerando que a colelitíase tem apresentado um aumento significativo na população pediátrica, o que está relacionado principalmente à crescente prevalência de obesidade e dislipidemia infantil, objetiva-se analisar a epidemiologia das internações por colelitíase e colecistite na infância no Brasil, correlacionando os dados com a prevalência de obesidade infantil ao longo da última década. Para tanto, procede-se à análise descritiva dos dados de internações hospitalares registradas entre janeiro de 2013 e dezembro de 2023, coletados do Sistema de Informações Hospitalares do SUS (SIH/SUS), agrupando as internações por faixa etária e calculando as taxas de internação para cada ano. Desse modo, observa-se que houve um aumento progressivo nas internações, com a maior incidência na faixa etária de 10 a 14 anos, que representou em média 68,2% das hospitalizações. O número absoluto de internações cresceu continuamente entre 2013 e 2023, atingindo um pico em 2021. O que permite concluir que o aumento das internações por colelitíase na infância reflete a crescente prevalência de obesidade, ressaltando a necessidade de intervenções preventivas desde a primeira infância para melhorar a saúde pediátrica.