1,331 results
Search Results
2. Environmental Assessment of Innovative Paper Recycling Technology Using Product Lifecycle Perspectives.
- Author
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Ono, Yuya, Hayashi, Masaaki, Yokoyama, Koichiro, Okamura, Takehiko, and Itsubo, Norihiro
- Subjects
PAPER recycling ,RECYCLED paper ,ENERGY consumption ,TECHNOLOGY ,WATER use ,BLEACHING (Chemistry) - Abstract
Paper can be reused to efficiently manage biomass consumption, meaning that it has potential as an environmentally friendly material. On the other hand, because of high energy usage during the recycling process and transportation inefficiencies, there is a call for the development of technologies that can mitigate this environmental burden. This study evaluated, from a lifecycle perspective, a new technology that can collect and recycle paper within the office. This technology can reduce by over 90% the amount of water used compared with the conventional recycled paper that is pulped and bleached once by the dry process. It also eliminates transportation from paper collection facilities to recycling factories, reducing greenhouse gas emissions. This new technology is already in use in Japan, and analyses by user data indicate that evaluation results differ greatly depending on the utilization rate of the machine. In the future, environmental information should be shared by both users and manufacturers, so that users could increase their utilization rate, and manufacturers could develop alternative bonding agents in order to further reduce the total environmental burden. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
3. Scientific Papers by Developmental Biologists in Japan.
- Author
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Ohuchi, Hideyo and Nohno, Tsutomu
- Subjects
BIOLOGISTS - Published
- 2023
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4. Life Cycle Assessment of the Closed-Loop Recycling of Used Disposable Diapers.
- Author
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Itsubo, Norihiro, Wada, Mitsuhiro, Imai, Shigeo, Myoga, Akira, Makino, Naoki, and Shobatake, Koichi
- Subjects
DIAPERS ,PAPER recycling ,WASTE recycling ,SUPERABSORBENT polymers ,RAW materials ,WATER consumption ,INCINERATION - Abstract
In Japan, approximately 23.5 billion paper diapers are produced annually (total of diapers for infants and adults produced in 2018). The majority of used paper diapers are disposed of through incineration; in certain regions, some paper diapers are recycled, mostly by open-loop recycling or thermal recycling. To date, several methods of recycling used paper diapers have been proposed and developed, but these methods are considered to have different types and amounts of recycled materials and different environmental performances. In this study, a new technology was developed for the closed-loop recycling of used paper diapers, and the use of the recycled pulp and superabsorbent polymer (SAP) as materials for paper diapers was evaluated via the environmental impact using the life cycle assessment (LCA) method, using data obtained from experimental facilities for recycling. The results between the comparison of the new method with the landfill and incineration processes demonstrate a greenhouse gas reduction of 47% and 39%, respectively. The results also show that such recycling is expected to reduce land-use occupation and water consumption, closely related to the pulp, main raw material of paper diapers. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
5. Citation Network Analysis of Nurse Staffing Research from the Past Two Decades: 2000–2022.
- Author
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Morioka, Noriko, Ochi, Masanao, Okubo, Suguru, Moriwaki, Mutsuko, Hayashida, Kenshi, Sakata, Ichiro, and Kashiwagi, Masayo
- Subjects
RESEARCH ,ONLINE information services ,HEALTH facilities ,BIBLIOMETRICS ,NURSING services administration ,CITATION analysis ,HOSPITAL nursing staff ,RESEARCH funding ,WORKING hours ,ELECTRONIC publications ,MEDLINE ,CLUSTER analysis (Statistics) ,PATIENT safety - Abstract
Studies have indicated that higher numbers of nurses regarding staffing ensure patient safety and a better practice environment. Using citation analysis, this study visualizes the landscape of nurse staffing research over the last two decades to show the overall publication trends, major contributors, and main research topics. We extracted bibliometric information from PubMed from January 2000 to September 2022. After clustering the network, we analyzed each cluster's characteristics by keyword. A total of 2167 papers were considered for analysis, and 14 clusters were created. The analysis showed that the number of papers published per year has been increasing. Researchers from the US, the UK, Canada, Australia, and Belgium have led this field. As the main clusters in nurse staffing research during the past two decades, the following five research settings were identified: nurse outcome and patient outcome research in acute care hospitals, nurse staffing mandate evaluation research, nursing home research, and school nurse research. The first three clusters accounted for more than 80% of the total number of published papers, and this ratio has not changed in the past 20 years. To further develop nurse staffing research globally, evidence from other geographic areas, such as African and Asian countries, and from long-term care or community settings is necessary. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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6. Quantifying the 60-Year Contribution of Japanese Zoos and Aquariums to Peer-Reviewed Scientific Research.
- Author
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Anzai, Wataru, Ban, Kazuyuki, Hagiwara, Shintaro, Kako, Tomoya, Kashiwagi, Nobuyuki, Kawase, Keisuke, Yamanashi, Yumi, and Murata, Koichi
- Subjects
AQUARIUMS ,ZOOS ,ANIMAL welfare ,BIODIVERSITY conservation ,ENDANGERED species ,ECOSYSTEMS - Abstract
Simple Summary: Today's zoos and aquariums claim to be shifting from being entertainment facilities to centers for the conservation of biodiversity. To make this shift, scientific research, including understanding the biology of endangered species and improving the environment of captive animals, is essential. Several studies have examined the trends in the number of research papers published by zoos and aquariums globally and indicated that this number has increased over the past few decades. In this study, we examined the trends in the number of papers published by Japanese zoos and aquariums over the past 62 years to determine whether research activities are also developing in Japan. We found that the number of research papers has significantly increased and that the research fields have diversified since around 1990. However, we also found some problems: about a quarter of the institutions have published no papers, research targets in zoos were biased toward captive mammals and that aquariums conducted little research on animal welfare. Addressing these issues, we would argue, will help Japanese zoos and aquariums to make further progress. With the shift in their social roles, modern zoos and aquariums are required to develop scientific research. Although zoos and aquariums worldwide have reported an increase in the number of papers they publish and the diversification of their fields in recent decades, the specific circumstances in Japan are slightly unclear. We listed peer-reviewed papers authored by Japanese zoos and aquariums using search engines and quantitatively evaluated the changes in the number of papers published over 62 years. Our results showed that papers published in Japan have increased remarkably since the 1990s, and research fields have diversified as in the rest of the world. In particular, joint research with research institutes has seen an upward trend, and the instances of English-language papers have increased. Meanwhile, the content of the research was biased. In zoos, research on animal welfare has been increasing, but the focus was heavily biased toward captive mammals. Aquariums contributed to the understanding of local ecosystems through the fundamental study of wildlife, but there were fewer papers on improving husbandry. Our results indicated that while research by Japanese zoos and aquariums is developing, research on welfare, conservation, and education regarding native endangered species must still be improved. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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7. Skepticism in the Early Stage of the Introduction of Environmental Enrichment in Japanese Zoos.
- Author
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Ota, Kazuhiko and Yamazaki, Saika
- Subjects
ENVIRONMENTAL enrichment ,ZOOS ,PERCEPTION in animals ,SKEPTICISM ,ANIMAL welfare ,PROFESSIONAL ethics - Abstract
Simple Summary: This research explores the initial skepticism and bewilderment among zoo staff about animal welfare and environmental enrichment introduced in Japanese zoos in the mid-1990s. Based on the results of a 2001 questionnaire survey conducted by the Japanese Association of Zoos and Aquariums and publicly available literature, this paper demonstrates that this skepticism and confusion are not simply due to wariness of a new initiative but to a complex combination of factors, including inadequate information, historical and cultural context, and differing perceptions of animal care in the legal system. For example, it was shown that in the early 2000s, environmental enrichment was misinterpreted as exhibit strategy, leading to resistance from zoo staff. This misinterpretation and resistance can be traced back to the post-World War II popularity of mobile zoos and the legal perception of animals as mere "living beings", not "sentient beings" under Japan's Animal Protection Law. Through the analysis of a case study in Japan in the early 2000s, this paper aims to identify some of the early challenges to introducing and practicing animal welfare and environmental enrichment in non-Western cultures and contribute to better understanding and practice. Despite regional differences, this study aims to contribute to understanding and improving the universal acceptance and application of animal welfare. This study examines the Japanese zoo staff's initial skepticism and bewilderment regarding animal welfare and environmental enrichment in the mid-1990s. Utilizing a 2001 questionnaire conducted by the Japanese Association of Zoos and Aquariums and existing literature reveals that this resistance stemmed from inadequate information, cultural history, and legal perspectives on animal care. Specifically, environmental enrichment was initially misunderstood as an exhibition strategy, partly due to post-WWII trends in mobile zoos and legal views of animals as non-sentient under Japan's Animal Protection Law. The research highlights the early hurdles in adopting animal welfare and environmental enrichment in non-Western settings, aiming to provide insights for other regions dealing with similar transitional challenges. It also addresses misperceptions about environmental enrichment in the context of empathetic relationships and professional ethics in Japanese zoology, offering insights into regions facing similar issues. Additionally, the paper discusses the progression of animal welfare practices in Japanese zoos and related managerial challenges, acknowledging cultural and institutional factors. Despite regional differences, this study aims to contribute to understanding and improving the universal acceptance and application of animal welfare. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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8. Governors in the Digital Era: Analyzing and Predicting Social Media Engagement Using Machine Learning during the COVID-19 Pandemic in Japan.
- Author
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Shady, Salama, Shoda, Vera Paola, and Kamihigashi, Takashi
- Subjects
COVID-19 pandemic ,DIGITAL technology ,MACHINE learning ,SOCIAL media ,MICROBLOGS ,GOVERNORS ,CRISIS communication ,SOCIAL media in business - Abstract
This paper presents a comprehensive analysis of the social media posts of prefectural governors in Japan during the COVID-19 pandemic. It investigates the correlation between social media activity levels, governors' characteristics, and engagement metrics. To predict citizen engagement of a specific tweet, machine learning models (MLMs) are trained using three feature sets. The first set includes variables representing profile- and tweet-related features. The second set incorporates word embeddings from three popular models, while the third set combines the first set with one of the embeddings. Additionally, seven classifiers are employed. The best-performing model utilizes the first feature set with FastText embedding and the XGBoost classifier. This study aims to collect governors' COVID-19-related tweets, analyze engagement metrics, investigate correlations with governors' characteristics, examine tweet-related features, and train MLMs for prediction. This paper's main contributions are twofold. Firstly, it offers an analysis of social media engagement by prefectural governors during the COVID-19 pandemic, shedding light on their communication strategies and citizen engagement outcomes. Secondly, it explores the effectiveness of MLMs and word embeddings in predicting tweet engagement, providing practical implications for policymakers in crisis communication. The findings emphasize the importance of social media engagement for effective governance and provide insights into factors influencing citizen engagement. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. Deep-Learning-Based Stereo Matching of Long-Distance Sea Surface Images for Sea Level Monitoring Systems.
- Author
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Yang, Ying, Lu, Cunwei, and Li, Zhenhua
- Subjects
OCEAN waves ,IMAGE analysis ,STEREOPHONIC sound systems - Abstract
Due to the advantages of coastal areas in the fields of agriculture, transport, and fishing, increasingly more people are moving to these areas. Sea level information is important for these people to survive after extreme sea level events. With the recent improvements in computing and storage capacities, image analysis as a new measuring method is being rapidly developed and widely applied. In this paper, a multi-camera-based sea level height measuring system was built along Japan's coast and a deep-learning-based stereo matching method has been proposed for this system to complete 3D measurements. In this system, cameras are set with long base distances to ensure the long-distance monitoring system's precision, which causes a huge difference between the fields of view of the left and right cameras. Since most common network structures complete stereo matching by depth-wise cross-correlation between left and right images, they rely too much on the high-quality rectification of two images and fail on our long-distance sea surface images. We established a feature detection and matching network to realize sea wave extraction and sparse stereo matching for the system. Based on our previous result using the traditional method, the initial disparity was computed to reduce the search range of stereo matching. A training set with 785 pairs of sea surface images and 10,172 pairs of well-matched sea wave images was constructed to supervise the network. The experimental results verified that the proposed method can realize sea wave extraction and mask generation. It can also realize sparse matching of sea surface images regardless of poor rectification. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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10. A Study of Learning Environment for Initiating Flutter App Development Using Docker.
- Author
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Aung, Soe Thandar, Funabiki, Nobuo, Aung, Lynn Htet, Kinari, Safira Adine, Mentari, Mustika, and Wai, Khaing Hsu
- Subjects
CLASSROOM environment ,STEVEDORES ,WEB browsers ,SOURCE code ,MOBILE apps - Abstract
The Flutter framework with Dart programming allows developers to effortlessly build applications for both web and mobile from a single codebase. It enables efficient conversions to native codes for mobile apps and optimized JavaScript for web browsers. Since utilizing a wide range of widgets in Flutter ensures consistent experiences on various devices for users, it becomes crucial in programming education by providing a unified environment for learning app development while reducing the need for platform-specific knowledge. However, the setup of the Flutter environment is challenging for novice students due to its multiple steps, such as installing dependencies and configuring environments. To support independent learning for these students, it is essential to simplify the setup by providing user-friendly instructions and automated tools. In this paper, we present a Docker-based environment for Flutter app developments across Windows, Linux, and Mac through Visual Studio Code, ensuring a unified learning experience. This paper aims to simplify complex configurations and address the obstacles encountered by students when initiating Flutter projects. For the evaluation, we prepared three simple Flutter projects along with the setup environment in a Docker container. Then, we asked 24 Master's students at Okayama University, Japan, to install the environment and modify the source codes in the projects independently by following the given instructions. The results show that all the students successfully completed the assignments, which confirms the efficiency and validity of our proposal. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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11. Techno-Economic Analysis of Grid-Connected Hydrogen Production via Water Electrolysis.
- Author
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Zhu, Pengcheng, Mae, Masahiro, and Matsuhashi, Ryuji
- Subjects
HYDROGEN production ,HYDROGEN analysis ,GREEN fuels ,RENEWABLE energy transition (Government policy) ,RENEWABLE energy sources ,WATER electrolysis - Abstract
As the global energy landscape transitions towards a more sustainable future, hydrogen has emerged as a promising energy carrier due to its potential to decarbonize various sectors. However, the economic competitiveness of hydrogen production by water electrolysis strongly depends on renewable energy source (RES) availability. Thus, it is necessary to overcome the challenges related to the intermittent nature of RESs. This paper presents a comprehensive techno-economic analysis of complementing green hydrogen production with grid electricity. An evaluation model for the levelized cost of hydrogen (LCOH) is proposed, considering both CO
2 emissions and the influence of RES fluctuations on electrolyzers. A minimum load restriction is required to avoid crossover gas. Moreover, a new operation strategy is developed for hydrogen production plants to determine optimal bidding in the grid electricity market to minimize the LCOH. We evaluate the feasibility of the proposed approach with a case study based on data from the Kyushu area in Japan. The results show that the proposed method can reduce the LCOH by 11% to 33%, and increase hydrogen productivity by 86% to 140%, without significantly increasing CO2 emission levels. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
12. The Sound of One Hand Playing: The Sonic Environment of a Zen Training Temple.
- Author
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Joskovich, Erez
- Subjects
ZEN Buddhism ,TEMPLES ,SOUNDS ,VALUES (Ethics) ,RITES & ceremonies - Abstract
Zen practice is often associated with aloof silence and introspection. However, any visitor to a Japanese Zen training temple will be surprised by the abundance and richness of the acoustic environment. In effect, every moment of the training schedule is accompanied, chronicled, and choreographed by percussions and chanting vocals. This paper will introduce this sonic environment and explain how different sounds construct the training experience. In particular, I will focus on sound instruments that coordinate daily activities, such as bells, gongs, drums, and the like, arguing that they are essential to Zen practice. The first part of the paper explains the unique characteristics of a Japanese Zen training temple, focusing on ritual sound instruments and their place within the monastic soundspace. The second part examines the meaning of these instruments as described in Zen canonical writing, focusing mainly on Baizang's monastic regulation and different references to it by Japanese masters throughout history. The third part explores how contemporary monastics understand sound instruments and their function in regulating the body, conveying values, and evoking spiritual transformation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
13. Analysis of Pre-Earthquake Ionospheric Anomalies in the Japanese Region Based on DEMETER Satellite Data.
- Author
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Lu, Jingming, Hu, Yaogai, Jiang, Chunhua, Zhao, Zhengyu, Zhang, Yuannong, and Ma, Zhengzheng
- Subjects
EARTHQUAKE prediction ,EARTHQUAKE magnitude ,GEOMAGNETISM ,ELECTRON density ,ELECTRON temperature ,SPACE environment ,DATA integrity ,EARTHQUAKES - Abstract
The electron density (N
e ), ion density (Ni ), and electron temperature (Te ) statistics recorded by the DEMETER satellite payload ISL (Instrument Sonde de Langmuir) were used to study the disturbance characteristics of the ionosphere before solid earthquakes of magnitude 6 or higher in Japan during the summer of 2005 – 2009 , to provide more information and methods for the coupling mechanism and short-range earthquake prediction. In this paper, the region of ± 10 ° of the epicenter is divided into 1 ° × 1 ° pixels, and the background field of each parameter is constructed using data without earthquakes and relatively calm space weather. We also define a measure of the perturbation intensity of ionospheric parameters relative to the background field during the occurrence of earthquakes. The analysis results of the four Japanese earthquakes from space and time show an excellent synchronization in the time and area of the anomalies in ionospheric parameters of the four cases. All four instances showed Ne abnormalities, and three showed Ni and Te anomalies, in which N e and Ni increased or decreased abnormally, while Te increased abnormally every time, and the anomalies mainly occurred about 9–12 days before the earthquake. This paper eliminates the influence of solar, geomagnetic, and satellite data defects on the experimental results as much as possible in data screening and method selection. The results partially agree with the conclusions reported in the existing literature, and the obtained anomalies are somewhat related to the ionospheric precursors of earthquakes. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
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14. Research Trends and Future Direction for Utilization of Woody Biomass in Japan.
- Author
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Zhou, Junnan and Tabata, Tomohiro
- Subjects
BIOMASS ,GREENHOUSE gases ,FREE enterprise ,SUBSIDIES ,GREENHOUSE gas mitigation - Abstract
After nearly a decade of rapid development, woody biomass has been widely used in Japan for power generation and heating. However, it has faced bottlenecks in recent years, leading to a decline in its popularity. This study aimed to elucidate the current status of woody biomass utilization in Japan by reviewing relevant research papers on upstream resource supply and downstream case studies in the supply chain. The supply potential of woody biomass estimated by reviewed articles ranges from 1.2 to 5.5 m
3 /year/ha, yet a significant portion of this potential cannot be exploited. The utilization of government subsidies, mechanization, and aggregated forests can substantially enhance the availability. The utilization of woody biomass has garnered widespread attention from the Japanese government and private enterprises, presenting an economic impact ranging from 66 to 249 million JPY/t, along with a GHG emission reduction spanning from −17.29 to 202.44 kg-CO2eq /GJ. However, balancing cost and scale remains the primary challenge facing woody biomass utilization in Japan. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
15. Deep Container Fabrication by Forging with High- and Low-Density Wood.
- Author
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Uejima, Hinako, Kuboki, Takashi, Tanaka, Soichi, and Kajikawa, Shohei
- Subjects
WOOD ,CRYPTOMERIA japonica ,MATERIALS testing ,FIBER orientation ,CONTAINERS ,WOOD density - Abstract
This paper presents a method for applying forging to high-density wood. A cylindrical container was formed using a closed die, and the appropriate conditions for temperature and punch length were evaluated. Ulin, which is a high-density wood, and Japanese cedar, which is a low-density wood and widely used in Japan, were used as test materials. The pressing directions were longitudinal and radial based on wood fiber orientation, and the shape and density of the resulting containers were evaluated. In the case of ulin, cracks decreased by increasing the temperature, while temperature had little effect on Japanese cedar. Containers without cracks were successfully formed by using a punch of appropriate length. The density of the containers was uniform in the punch length l = 20 and 40 mm in the L-directional pressing and l = 20 mm in the R-directional pressing when using ulin, with an average density of 1.34 g/cm
3 . This result indicates the forging ability of ulin is high compared to that of commonly used low-density woods. In summary, this paper investigated the appropriate parameters for forging with ulin. As a result, products of more uniform density than products made by cutting were obtained. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
16. Prediction of Uranium Adsorption Capacity in Radioactive Wastewater Treatment with Biochar.
- Author
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Qu, Zening, Wang, Wei, and He, Yan
- Subjects
WASTEWATER treatment ,ADSORPTION capacity ,METAHEURISTIC algorithms ,URANIUM ,BIOCHAR ,PARTICLE swarm optimization - Abstract
Recently, Japan's discharge of wastewater from the Fukushima nuclear disaster into the ocean has attracted widespread attention. To effectively address the challenge of separating uranium, the focus is on finding a healthy and environmentally friendly way to adsorb uranium using biochar. In this paper, a BP neural network is combined with each of the four meta-heuristic algorithms, namely Particle Swarm Optimization (PSO), Differential Evolution (DE), Cheetah Optimization (CO) and Fick's Law Algorithm (FLA), to construct four prediction models for the uranium adsorption capacity in the treatment of radioactive wastewater with biochar: PSO-BP, DE-BP, CO-BP, FLA-BP. The coefficient of certainty (R
2 ), error rate and CEC test set are used to judge the accuracy of the model based on the BP neural network. The results show that the Fick's Law Algorithm (FLA) has a better search ability and convergence speed than the other algorithms. The importance of the input parameters is quantitatively assessed and ranked using XGBoost in order to analyze which parameters have a greater impact on the predictions of the model, which indicates that the parameters with the greatest impact are the initial concentration of uranium (C0 , mg/L) and the mass percentage of total carbon (C, %). To sum up, four prediction models can be applied to study the adsorption of uranium by biochar materials during actual experiments, and the advantage of Fick's Law Algorithm (FLA) is more obvious. The method of model prediction can significantly reduce the radiation risk caused by uranium to human health during the actual experiment and provide some reference for the efficient treatment of uranium wastewater by biochar. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
17. Blessings on the Waves: Miraculous Encounters of Japanese Pilgrim Monks during Sea Voyages Transmitting Dharma from Southern Song China.
- Author
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Liu, Yi
- Subjects
BUDDHIST monks ,VOYAGES & travels ,MONKS ,PILGRIMS & pilgrimages ,DHARMA ,JAPANESE literature ,GODS - Abstract
The maritime route connecting the Chinese continent and the Japanese archipelago facilitated a significant exchange of commercial goods and sociocultural knowledge throughout the Southern Song dynasty. Within this context, Japanese pilgrim monks traveling along this route acted as key conduits for the transmission of Buddhist teachings. Their journeys profoundly influenced the establishment and development of new Buddhist monasteries in Japan. Focusing on biographical accounts that portray the experiences of these pilgrim monks during their twelfth- and thirteenth-century sea voyages, this paper aims to explore how these accounts drew on intertextual links with existing Buddhist records to fulfill the compilers' intentions. Specifically, this paper examines the structure and sources of biographical accounts detailing miraculous encounters between pilgrim monks and Buddhist deities during perilous situations at sea. By interpreting the role of these deities in the corpus of Buddhist literature and within Japanese Buddhist monasteries founded by pilgrim monks, this paper argues that the increasing emphasis on pilgrim monks' attainment of divine protection in their biographical records suggests a growing concern for reinforcing the authority of their dharma lineages. Moreover, the composition and reception of these miraculous accounts reflected the changing religious needs and reshaped strategies for promoting specific Buddhist sects in subsequent periods. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
18. Simulated Seismicity as a Tool for Studying the Long-Term Seismogenic Process: An Italy–Japan Comparison.
- Author
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Console, Rodolfo, Carluccio, Roberto, and Vannoli, Paola
- Subjects
EARTHQUAKES ,STRAINS & stresses (Mechanics) ,SEISMOGRAMS ,SEISMOLOGY ,SUBDUCTION - Abstract
In this study, we aimed to assess the capacity of a physics-based earthquake simulator to improve our understanding of the seismogenic process. In this respect, we applied a previously tested earthquake simulator to two well-known and completely different seismogenic fault systems, namely the Italian Apennines and the Nankai subduction in Japan, for which long historical records of strong earthquakes are available. They are characterized by different fault mechanisms, fault sizes, and slip rates. Because of the difference in slip rates, the time scale of the seismicity patterns is different for the two systems (several hundreds of years for the Apennines and a few tens of years for the Nankai Fault). The results of simulations that produced synthetic catalogues of 100,000 years show these significant long-term seismicity patterns characterizing the seismic cycles for both seismogenic areas as follows: The average stress and the occurrence rate of earthquakes increase in the long term as the next major earthquake approaches; while the average stress increases uniformly, the occurrence rate stops increasing well in advance of the mainshocks; the b-value exhibits a long-term increase before major earthquakes and a fast decrease shortly before the mainshocks. Even if no specific statistical tool was applied for the quantification of the similarities between the seismicity patterns of the two seismic areas, such similarities are clearly justified by the large number of seismic cycles included in the 100,000-year synthetic catalogues. The paper includes a discussion on the capability of the simulation algorithm to reliably represent the real long-term seismogenic process. This question is difficult to answer because the available historical observations are of too short a duration to provide significant statistical results. In spite of the limitations characterizing the use of earthquake simulators for time-dependent earthquake hazard assessment, and the lack of convincing mechanistic explanations of the specific seismic patterns reproduced by our simulator algorithm, our results encourage further investigations into the application of simulators for the development of seismogenic models, including short-term features. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. 'No State, No Masters': Café Lavandería in Tokyo, Music, and Anticapitalism in a Cultural Environment.
- Author
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González Dávila, María José and Pérez Garrido, Federico Fco.
- Subjects
LINGUISTIC landscapes ,POLITICAL movements ,ANTI-capitalist movement ,SOCIAL movements ,MEGALOPOLIS ,SOCIOLINGUISTICS - Abstract
This paper is part of a series of research that these authors are conducting to study the linguistic landscape of the Tokyo megacity. In this instance, our focus lies on Shinjuku city. However, our examination does not extend to the linguistic landscape of the city itself; rather, it zeroes in on a café situated at its core, the Café Lavandería. How did Café Lavandería contribute to the development of the Hispanic linguistic, sociolinguistic, and subversive landscape in central Tokyo? The research unfolds in various segments. Initially, contextualization introduces the reader to Tokyo and Shinjuku; subsequently, the significance of Café Lavandería and the subversive social and political movements in Japan are elucidated. Following this, the study's foundation, including the photographic evidence and corresponding data, is presented. Lastly, an analysis of these data is conducted, culminating in an evaluation of Café Lavandería's impact in Japan. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
20. Dissecting the School Management Rubric in a Japanese Reform-Oriented Municipality.
- Author
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Yokota, Hirokazu
- Subjects
SCHOOL administration ,TRANSFORMATIONAL leadership ,TRANSACTIONAL leadership ,LEADERSHIP ,SCHOOL administrators ,EDUCATIONAL leadership - Abstract
In Japan, there is almost no national policy that details the attributes and abilities desirable for school management staff. However, in March 2023, Toda City in Saitama prefecture, a city famous for its aggressive education reforms, published the Toda City School Management Rubric (SMR) as perspectives to be referred to in the daily practice of school management through a time-consuming hearing from principals and vice principals. By categorizing each dimension of the rubric itself as well as the documents relating to the creation process with the four school leadership styles, while making a comparison to school leadership standards in the U.S. and U.K., this paper aims to illuminate how the magic words of "school leadership" were turned into concrete perspectives for school leaders to reflect on. As a result, there are similarities and differences among leadership standards in three countries. Moreover, a transformational leadership style seems to be the most frequently mentioned among the four school leadership styles, and many of the principals and vice principals referred to instructional leadership in a sense that they need to take a lead in transforming traditional teacher-led instruction into student-centered learning. Furthermore, a distributed leadership style is considered to be important by many school leaders, especially because they continue to seek an appropriate balance between top-down and bottom-up approaches, and some principals and vice principals take the issue of work style reform seriously, which assumes an aspect of transactional leadership. As an arguably unprecedented attempt to comprehensively analyze the detailed policy documents on school leadership in Japan, this article will provide cross-cultural implications for school leadership policy and practice. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Accuracy Verification of Multiple Floating LiDARs at the Mutsu-Ogawara Site.
- Author
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Uchiyama, Shogo, Ohsawa, Teruo, Asou, Hiroshi, Konagaya, Mizuki, Misaki, Takeshi, Araki, Ryuzo, and Hamada, Kohei
- Subjects
SYSTEMS availability ,WIND speed ,LIDAR ,BUOYS ,TURBULENCE - Abstract
Floating LiDAR systems (FLSs) may replace conventional offshore met masts, and they have been developed well in Europe. However, before using them in Japan, we must determine whether they demonstrate the same performance under the unique East-Asian meteorological and oceanographic conditions. Therefore, herein, we investigate the performance of FLSs by focusing on the differences among models. Four independent wind datasets from three FLSs were simultaneously verified against a reference met mast and vertical LiDAR at a Japanese site. The data availability was confirmed to vary from 62.7 to 98.0% over the period at 63 m. This was strongly affected by the system availability of the buoy and LiDAR, suggesting that buoy system robustness is key to better campaigns with higher data availability. The 10 min averaged wind speed and direction largely satisfied the Carbon Trust's key performance indicators, with a low sensitivity to wave conditions depending on the buoy shape. The standard deviation of the wind speed and turbulence intensity had poorer accuracy than that of the 10 min averaged statistics because of the wave-induced buoy motion, especially for small buoys. In short, this paper provides an overview of a measurement by FLS in Japan. Also, the unique verification with multiple units suggests the need for a low-motion buoy or motion compensation to improve the measurement accuracy of the turbulence component. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Watchful Waiting in Pediatric Acute Otitis Media: A Real Practice Approach or an Intangible Desideratum?
- Author
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Spoială, Elena-Lia, Stârcea, Iuliana Magdalena, Ioniuc, Ileana Katerina, Cozma, Romică Sebastian, Rusu, Daniela Carmen, Bozomitu, Laura, Lupu, Vasile Valeriu, Iliescu Haliţchi, Codruţa Olimpiada, Roşu, Vasile Eduard, Roşu, Solange Tamara, and Gavrilovici, Cristina
- Subjects
ACUTE otitis media ,WATCHFUL waiting ,OTITIS media ,DRUG resistance in bacteria ,ANTIBIOTIC overuse ,ANTI-infective agents - Abstract
Acute otitis media (AOM) in children is one of the leading causes of health care visits and antibiotic prescriptions worldwide. The overall aim of the current study is twofold: 1. to analyze and discuss the antibiotic prescription patterns in AOM in children without complications or risk factors and 2. to assess to what extent the watchful-waiting approach is a real practice or a mere desideratum. We performed an electronic search in the PubMed and Embase databases from 2013 to 2023 to capture original research studies investigating antibiotic prescribing patterns for AOM in children. Among the 12 papers included in the analysis, the antibiotic prescription rate ranged from 44.8% to 98%. Our study reveals similarities regarding the use of amoxicillin as a first-line antibiotic in pediatric AOM, but also discrepancies in the watchful-waiting approach attitude and in the choice of second or third-line antimicrobial agents. The proportion of cases managed with the watchful-waiting approach ranged from 7.5% (Australia) to 55.2% (Finland). Denmark was the only country reporting penicillin V as a first-choice regimen for children with AOM, which fulfils the guidelines' recommendations. The most unsatisfying rate of amoxicillin use was recorded in Japan, contrary to the recommendations of local guidelines. The use of quinolones was reported in two out of twelve studies, with the highest proportion in Japan, where tosufloxacin was used in 21.4% of the total number of cases. The duration of the antibiotic regimens was analyzed in three out of twelve papers. Since global antibiotic overuse contributes to the emergence of antibiotic resistant bacteria, new strategies are needed to increase the rate of watchful waiting and to promote the judicious use of antibiotics. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
23. Investigating How Exchange Rates Impact Japan's Machinery Exports since 1990.
- Author
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Thorbecke, Willem
- Subjects
GLOBAL Financial Crisis, 2008-2009 ,FOREIGN exchange rates ,FOREIGN investments ,MACHINERY ,RESEARCH personnel - Abstract
Japan exports sophisticated capital goods. Since the Global Financial Crisis (GFC), Japanese companies have offshored the production of lower-end goods and parts and components to Asian countries. Because of this, several researchers argued that a weaker yen no longer stimulates machinery exports much because an increase in Japanese exports increases parts and components imports from overseas Asian subsidiaries. This paper finds that, after the GFC, a weaker yen no longer increases Japanese machinery exports to Asia but continues to stimulate exports outside of Asia. Thus, the weaker yen since 2020 does not help Asian firms to import vital Japanese capital goods but does increase the profitability of Japanese manufacturers and their exports to non-Asian countries. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Study on the Relationship between Port Governance and Terminal Operation System for Smart Port: Japan Case.
- Author
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Inutsuka, Hideyo, Ichimura, Kinya, Sugimura, Yoshihisa, Yoshie, Muneo, and Shinoda, Takeshi
- Subjects
MARINE terminals ,INFORMATION & communication technologies ,SMART cities - Abstract
Background: To improve port productivity, safety, and sustainability, the use of information and communication technology is being promoted as a smart port. The utilization of a terminal operation system (TOS) is important for advanced port operations, and it is necessary to organize the issues and characteristics of the TOS. Methods: The characteristics of TOSs introduced in Japan and those widely introduced in Europe and Southeast Asia will be investigated and discussed according to the port management system in Japan. Results: Japanese TOSs are characterized by a lack of automated functions, such as ship loading plans, and by the fact that they are designed to allow the crane driver to select the order of operations, which may be attributed to a system wherein stakeholders are segmented and on-site decisions are emphasized. The promotion of smart ports in Japanese-style ports requires a system for information linkage between stakeholders. Conclusions: TOS capabilities for smart ports should be implemented according to the characteristics of port management in each region, and the studies conducted in this paper are useful in examining port system implementation strategies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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25. Enhanced Day-Ahead Electricity Price Forecasting Using a Convolutional Neural Network–Long Short-Term Memory Ensemble Learning Approach with Multimodal Data Integration.
- Author
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Wang, Ziyang, Mae, Masahiro, Yamane, Takeshi, Ajisaka, Masato, Nakata, Tatsuya, and Matsuhashi, Ryuji
- Subjects
ELECTRICITY pricing ,RENEWABLE energy sources ,DATA integration ,PRICES ,FORECASTING ,ENERGY industries - Abstract
Day-ahead electricity price forecasting (DAEPF) holds critical significance for stakeholders in energy markets, particularly in areas with large amounts of renewable energy sources (RES) integration. In Japan, the proliferation of RES has led to instances wherein day-ahead electricity prices drop to nearly zero JPY/kWh during peak RES production periods, substantially affecting transactions between electricity retailers and consumers. This paper introduces an innovative DAEPF framework employing a Convolutional Neural Network–Long Short-Term Memory (CNN–LSTM) model designed to predict day-ahead electricity prices in the Kyushu area of Japan. To mitigate the inherent uncertainties associated with neural networks, a novel ensemble learning approach is implemented to bolster the DAEPF model's robustness and prediction accuracy. The CNN–LSTM model is verified to outperform a standalone LSTM model in both prediction accuracy and computation time. Additionally, applying a natural logarithm transformation to the target day-ahead electricity price as a pre-processing technique has proven necessary for higher prediction accuracy. A novel "policy-versus-policy" strategy is proposed to address the prediction problem of the zero prices, halving the computation time of the traditional two-stage method. The efficacy of incorporating a suite of multimodal features: areal day-ahead electricity price, day-ahead system electricity price, areal actual power generation, areal meteorological forecasts, calendar forecasts, alongside the rolling features of areal day-ahead electricity price, as explanatory variables to significantly enhance DAEPF accuracy has been validated. With the full integration of the proposed features, the CNN–LSTM ensemble model achieves its highest accuracy, reaching performance metrics of R 2 , MAE, and RMSE of 0.787, 1.936 JPY/kWh, and 2.630 JPY/kWh, respectively, during the test range from 1 March 2023 to 31 March 2023, underscoring the advantages of a comprehensive, multi-dimensional approach to DAEPF. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. El Niño–Southern Oscillation-Independent Regulation of Western North Pacific Tropical Cyclone Genesis.
- Author
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Jian, Danlei, Zhao, Haikun, Liu, Min, and Wang, Ronghe
- Subjects
TROPICAL cyclones ,ROSSBY waves ,EL Nino ,LATITUDE ,KUROSHIO - Abstract
As the most significant interannual signal in the tropical Pacific, the influence of ENSO on the interannual variability in TC genesis location in the western North Pacific (WNP) has received much attention in previous studies. This paper mainly emphasizes the underlying SST factors independent of the ENSO signal and explores how they modulate interannual tropical cyclone genesis (TCG) latitude variability. Our study finds that the meridional sea temperature gradient (SSTG) between the Kuroshio Extension and the WNP still has a significant effect on the interannual variability in the TCG latitude after removing the effect of ENSO (r = 0.6). The interannual forecasts of the TCG latitude were effectively improved from 0.67 to 0.81 when the ENSO-independent SSTG and ENSO were regressed together in a multi-linear regression. We then propose an ENSO-independent physical mechanism affecting the TCG latitude. The equatorward (poleward) SSTG excited the positive (negative) Pacific–Japan telecorrelation pattern over the WNP, forming Rossby wave trains and propagating northward. A significant cyclonic vortex (anticyclonic vortex) with strong convective development (suppression) developed near 20° N, leading more TCs to the northern (southern) part of the WNP. These findings provide a new perspective for the prediction of the interannual variability in the TCG latitude. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
27. Downside Risk in Australian and Japanese Stock Markets: Evidence Based on the Expectile Regression.
- Author
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Marumo, Kohei and Li, Steven
- Subjects
STOCK price indexes ,STOCKS (Finance) ,VALUE at risk ,INVESTMENT risk ,EXPORT marketing - Abstract
The expectile-based Value at Risk (EVaR) has gained popularity as it is more sensitive to the magnitude of extreme losses than the conventional quantile-based VaR (QVaR). This paper applies the expectile regression approach to evaluate the EVaR of stock market indices of Australia and Japan. We use an expectile regression model that considers lagged returns and common risk factors to calculate the EVaR for each stock market and to evaluate the interdependence of downside risk between the two markets. Our findings suggest that both Australian and Japanese stock markets are affected by their past development and the international stock markets. Additionally, ASX 200 index has significant impact on Nikkei 225 in terms of downside tail risk, while the impact of Nikkei 225 on ASX is not significant. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. Eco-Driving on Hilly Roads in a Mixed Traffic Environment: A Model Predictive Control Approach.
- Author
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Bakibillah, A. S. M., Kamal, Md Abdus Samad, Imura, Jun-ichi, Mukai, Masakazu, and Yamada, Kou
- Subjects
HYBRID electric vehicles ,DRIVER assistance systems ,COST functions ,PREDICTION models ,DIGITAL maps ,ROAD maps - Abstract
Human driving behavior significantly affects vehicle fuel economy and emissions on hilly roads. This paper presents an ecological (eco) driving scheme (EDS) on hilly roads using nonlinear model predictive control (NMPC) in a mixed traffic environment. A nonlinear optimization problem with a relevant prediction horizon and a cost function is formulated using variables impacting the fuel economy of vehicles. The EDS minimizes vehicle fuel usage and emissions by generating the optimum velocity trajectory considering the longitudinal motion dynamics, the preceding vehicle's state, and slope information from the digital road map. Furthermore, the immediate vehicle velocity and angle of the road slope are used to tune the cost function's weight utilizing fuzzy inference methods for smooth maneuvering on slopes. Microscopic traffic simulations are used to show the effectiveness of the proposed EDS for different penetration rates on a real hilly road in Fukuoka City, Japan, in a mixed traffic environment with the conventional (human-based) driving scheme (CDS). The results show that the fuel consumption and emissions of vehicles are significantly reduced by the proposed NMPC-based EDS compared to the CDS for varying penetration rates. Additionally, the proposed EDS significantly increases the average speed of vehicles on the hilly road. The proposed scheme can be deployed as an advanced driver assistance system (ADAS). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. The Reception of the Mantra of Light in Republican Period Chinese Buddhism.
- Author
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An, Saiping
- Subjects
RITES & ceremonies ,REINCARNATION ,RITUAL ,BUDDHISTS ,BUDDHISM ,SCHOLARS ,IMPORTS - Abstract
This paper examines the utilization of the mantra of light and its associated maṇḍala practices by Wang Hongyuan 王弘願 (1876–1937), a Chinese Buddhist during the Republican Period, and his adherents, which has not yet been noticed by previous scholars. With the import of esoteric Buddhist doctrines and practices from Japan, the mantra of light, which was a rarely used mantra in pre-modern China, gained renewed significance. This led to the widespread adoption of the ritual practices of this mantra by Wang Hongyuan and his surrounding Buddhist groups in early modern China. The rituals of this mantra were used as a supplement or substitute for near-death Pure Land practices. This paper presents Pure Land Buddhist practices intertwined with esoteric Buddhist elements or "esoteric" approaches to Pure Land rebirth in modern Chinese Buddhism which have been overlooked by previous scholars. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. Confirmation of Final Bolt Tightening via Deep Learning-Based Image Processing.
- Author
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Fukuoka, Tomotaka, Minami, Takahiro, and Fujiu, Makoto
- Subjects
DEEP learning ,IMAGE processing ,ENGINEERS ,INFORMATION storage & retrieval systems ,JUDGMENT (Psychology) ,PROBLEM solving - Abstract
In Japan, the final tightening of bolts in the bolt-tightening operations is guaranteed to have been performed correctly by visually determining the change in markings during the temporary tightening operation performed by the technician. However, the engineer must confirm many bolts; further, the amount of time needed for the confirmation work and the inability to keep an objective record of the confirmation results present problems. To solve these problems, we developed a system for automating the final tightening of bolts using deep learning-based image-processing technology. The proposed system takes as input videos of bolt fastening points, extracts individual bolts, extracts markings on the extracted bolts, and makes fastening decisions based on the markings. In the judgment stage, the system processes information on each bolt where a marking is detected; thus, it is possible to leave this information as objective data. In this paper, we evaluated the accuracy of each automated step using an actual bridge video. We also compared the confirmation time with human confirmation. As a result of the confirmation, our proposed method reduces the confirmation time by about 33% in comparison to human confirmation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. Study on the Preparation Method of Quality-Assured In-Hospital Drug Formulation for Children—A Multi-Institutional Collaborative Study.
- Author
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Saito, Jumpei, Suzuki, Eiji, Nakamura, Yosuke, Otsuji, Takashi, Yamamoto, Hiroshi, Yamamoto, Hideki, Kai, Yuiko, Totsu, Maiko, Hashimoto, Sayuki, Nakamura, Hidefumi, Akabane, Miki, and Yamatani, Akimasa
- Subjects
RESEARCH ,DRUG packaging ,QUALITY assurance ,BACLOFEN ,DRUG stability ,RESEARCH funding ,PHARMACEUTICAL chemistry ,CLONIDINE ,DRUG storage ,DOSAGE forms of drugs ,HYDROCORTISONE ,POWDERS - Abstract
The quality-assured preparation of crushed and diluted preparations for children is a challenge. In this study, a multicenter study was conducted to validate the preparation method for the quality assurance of baclofen powder, clonidine powder, and hydrocortisone powder prepared from tablets according to a previously established method. In-hospital preparations were prepared at five medical facilities under different crushing and mixing conditions. After storage in closed bottles, in-use bottles, and laminated paper for 120 days, ingredients stability, drug elution, and content uniformity after packaging were evaluated. All three ingredients were maintained at between 90% and 110% of their initial content for 120 days under packaging conditions of 25 ± 2 °C and 60 ± 5% relative humidity, with no change in dissolution in all formulations made at all five facilities. The content uniformity was also acceptable. The established method may contribute to quality-assured pediatric dosage form modification. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
32. Bridging East-West Differences in Ethics Guidance for AI and Robotics.
- Author
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Jecker, Nancy S. and Nakazawa, Eisuke
- Subjects
WORLD War II ,VALUES (Ethics) ,ARTIFICIAL intelligence ,ETHICS - Abstract
Societies of the East are often contrasted with those of the West in their stances toward technology. This paper explores these perceived differences in the context of international ethics guidance for artificial intelligence (AI) and robotics. Japan serves as an example of the East, while Europe and North America serve as examples of the West. The paper's principal aim is to demonstrate that Western values predominate in international ethics guidance and that Japanese values serve as a much-needed corrective. We recommend a hybrid approach that is more inclusive and truly 'international'. Following an introduction, the paper examines distinct stances toward robots that emerged in the West and Japan, respectively, during the aftermath of the Second World War, reflecting history and popular culture, socio-economic conditions, and religious worldviews. It shows how international ethics guidelines reflect these disparate stances, drawing on a 2019 scoping review that examined 84 international AI ethics documents. These documents are heavily skewed toward precautionary values associated with the West and cite the optimistic values associated with Japan less frequently. Drawing insights from Japan's so-called 'moonshot goals', the paper fleshes out Japanese values in greater detail and shows how to incorporate them more effectively in international ethics guidelines for AI and robotics. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
33. Overcoming Uncertainty in Novel Technologies: The Role of Venture Capital Syndication Networks in Artificial Intelligence (AI) Startup Investments in Korea and Japan.
- Author
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Hyun, Eun-jung and Kim, Brian Tae-Seok
- Subjects
VENTURE capital ,ARTIFICIAL intelligence ,SOCIAL network theory ,VENTURE capital companies ,INDUSTRIAL clusters - Abstract
This paper investigates how historical inter-firm syndication networks influence venture capitalists' (VCs) propensity to invest in startups pursuing novel, uncertain technologies, with a focus on artificial intelligence (AI). We theorize that VCs' positional attributes within cumulative syndication networks determine their access to external expertise and intelligence that aid AI investment decisions amidst informational opacity. Specifically, reachability to prior AI investors provides referrals and insights transmitted across short network paths to reduce ambiguity. Additionally, VC brokerage between disconnected industry clusters furnishes expansive, non-redundant information that is pivotal for discovering and assessing AI opportunities. Through hypotheses grounded in social network theory, we posit network-based mechanisms that equip VCs to navigate uncertainty when engaging with ambiguous innovations like AI. We test our framework, utilizing comprehensive historical records of global venture capital investments. Analyzing the location information of VC firms in this database, we uncovered a history of 14,751 investments made by Korean and Japanese firms. Using these data, we assembled an imbalanced panel dataset from 1984 to 2022 spanning 230 Korean and 413 Japanese VCs, with 4508 firm-year observations. Negative binomial regression analysis of this dataset reveals how historical relational patterns among venture capital firms foster readiness to evaluate unfamiliar innovations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. A Review of the Distribution and Health Effect of Organophosphorus Flame Retardants in Indoor Environments.
- Author
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Song, Xingwei, Zhu, Sheng, Hu, Ling, Chen, Xiaojia, Zhang, Jiaqi, Liu, Yi, Bu, Qingwei, and Ma, Yuning
- Subjects
FIREPROOFING agents ,DUST ingestion ,POLYBROMINATED diphenyl ethers ,VAPOR pressure - Abstract
As a replacement for polybrominated diphenyl ethers (PBDEs), organophosphorus flame retardants (OPFRs) have been widely used and detected in different indoor environments all over the world. This paper comprehensively describes the concentration levels and distribution information of 11 kinds of OPFRs from 33 indoor dust and 10 air environments, from which TBOEP, TCIPP, and TDCIPP were observed to have higher concentrations in indoor environments. The ΣOPFRs displayed higher concentrations in indoor dust than in indoor air due to the higher molecular weight and vapor pressure of ΣOPFRs in building decoration materials, specifically for TCIPP and TDCIPP compounds. Considering that it is inevitable that people will be exposed to these chemicals in the indoor environments in which they work and live, we estimated their potential health risks through three human exposure pathways and found that the ingestion exposure to TBOEP for toddlers in Japan may reach up to 1270.80 ng/kg/day, which comprises a significant pathway compared to dermal contact and indoor air inhalation. Specifically, the combined total exposure to OPFRs by air inhalation, dust ingestion, and dermal contact was generally below the RfD values for both adults and toddlers, with a few notable higher exposures of some typical OPFRs. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. Code Plagiarism Checking Function and Its Application for Code Writing Problem in Java Programming Learning Assistant System †.
- Author
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Htet, Ei Ei, Wai, Khaing Hsu, Aung, Soe Thandar, Funabiki, Nobuo, Lu, Xiqin, Kyaw, Htoo Htoo Sandi, and Kao, Wen-Chung
- Subjects
PLAGIARISM ,JAVA programming language ,PYTHON programming language ,SUPPORT vector machines - Abstract
A web-based Java programming learning assistant system (JPLAS) has been developed for novice students to study Java programming by themselves while enhancing code reading and code writing skills. One type of the implemented exercise problem is code writing problem (CWP), which asks students to create a source code that can pass the given test code. The correctness of this answer code is validated by running them on JUnit. In previous works, a Python-based answer code validation program was implemented to assist teachers. It automatically verifies the source codes from all the students for one test code, and reports the number of passed test cases by each code in the CSV file. While this program plays a crucial role in checking the correctness of code behaviors, it cannot detect code plagiarism that can often happen in programming courses. In this paper, we implement a code plagiarism checking function in the answer code validation program, and present its application results to a Java programming course at Okayama University, Japan. This function first removes the whitespace characters and the comments using the regular expressions. Next, it calculates the Levenshtein distance and similarity score for each pair of source codes from different students in the class. If the score is larger than a given threshold, they are regarded as plagiarism. Finally, it outputs the scores as a CSV file with the student IDs. For evaluations, we applied the proposed function to a total of 877 source codes for 45 CWP assignments submitted from 9 to 39 students and analyzed the results. It was found that (1) CWP assignments asking for shorter source codes generate higher scores than those for longer codes due to the use of test codes, (2) proper thresholds are different by assignments, and (3) some students often copied source codes from certain students. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. A Transfer Learning Approach Based on Radar Rainfall for River Water-Level Prediction.
- Author
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Ueda, Futo, Tanouchi, Hiroto, Egusa, Nobuyuki, and Yoshihiro, Takuya
- Subjects
RAINFALL ,CONVOLUTIONAL neural networks ,WATER levels ,HYDROLOGICAL stations ,RADAR ,RAIN gauges ,FLOOD damage - Abstract
River water-level prediction is crucial for mitigating flood damage caused by torrential rainfall. In this paper, we attempt to predict river water levels using a deep learning model based on radar rainfall data instead of data from upstream hydrological stations. A prediction model incorporating a two-dimensional convolutional neural network (2D-CNN) and long short-term memory (LSTM) is constructed to exploit geographical and temporal features of radar rainfall data, and a transfer learning method using a newly defined flow–distance matrix is presented. The results of our evaluation of the Oyodo River basin in Japan show that the presented transfer learning model using radar rainfall instead of upstream measurements has a good prediction accuracy in the case of torrential rain, with a Nash–Sutcliffe efficiency (NSE) value of 0.86 and a Kling–Gupta efficiency (KGE) of 0.83 for 6-h-ahead forecast for the top-four peak water-level height cases, which is comparable to the conventional model using upstream measurements (NSE = 0.84 and KGE = 0.83). It is also confirmed that the transfer learning model maintains its performance even when the amount of training data for the prediction site is reduced; values of NSE = 0.82 and KGE = 0.82 were achieved when reducing the training torrential-rain-period data from 12 to 3 periods (with 105 periods of data from other rivers for transfer learning). The results demonstrate that radar rainfall data and a few torrential rain measurements at the prediction location potentially enable us to predict river water levels even if hydrological stations have not been installed at the prediction location. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
37. Planned Happenstance and Entrepreneurship Development: The Case of Japanese Undergraduate Students.
- Author
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Hosomi, Masaki, Khalid, Saddam, and Sekiguchi, Tomoki
- Subjects
JAPANESE students ,UNDERGRADUATES ,INTENTION ,ENTREPRENEURSHIP ,LEARNING theories in education ,COLLEGE students ,BUSINESS education - Abstract
This research aimed to investigate Japanese university students' entrepreneurial development processes using the happenstance learning theory. The current research was an empirical study investigating the role of risk propensity, lifetime employment orientation, and entrepreneurship-related exploratory behaviour in developing the entrepreneurial intention of university students in Japan. Data were collected from 214 undergraduate students in Japan. The results demonstrated that the risk propensity characteristic of students influenced entrepreneurial intentions through entrepreneurship-related exploratory behaviour and lifetime employment orientation. The research also found that leadership experience moderated the relationship between risk propensity and entrepreneurship-related exploratory behaviour and the relationship between entrepreneurship-related exploratory behaviour and entrepreneurial intention. By applying the happenstance learning theory in an entrepreneurship study, the current research provides meaningful insights for research scholars, educators, and policymakers interested in the entrepreneurial intentions of students. This paper concludes with a discussion on the theoretical implications and future research directions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. Performance of the Food Waste Recycling Law in Japan with Reference to SDG 12.3.
- Author
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Okayama, Tomoko and Watanabe, Kohei
- Subjects
FOOD waste recycling ,RECYCLING laws ,FOOD waste ,WASTE minimization ,FOOD service - Abstract
SDG target 12.3 calls for halving food waste in retail, food service, and households by 2030. The food waste index developed for this purpose includes parts attached to food that are usually removed intentionally ("unavoidable food waste") and counts conversion into animal feed and utilisation as biomaterial as a means of reduction. In Japan, the "Food Waste Recycling Law", which has been in effect since 2001, promotes the recycling of food waste generated from businesses, designating feed conversion as a top priority. On the other hand, based on the more recent "Food Loss Reduction Promotion Act" of 2019, the government is currently promoting reduction in avoidable food waste to meet the SDG target. Based on statistical sources and interviews with ministry officers, this paper explains the history and achievements of Japan's 23-year policy based on the Food Recycling Law, as well as the tension between the two legislations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. How Can Artificial Intelligence Be Implemented Effectively in Diabetic Retinopathy Screening in Japan?
- Author
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Kawasaki, Ryo
- Subjects
LANGUAGE models ,MEDICAL screening ,DIABETIC retinopathy ,GENERATIVE artificial intelligence ,ARTIFICIAL intelligence - Abstract
Diabetic retinopathy (DR) is a major microvascular complication of diabetes, affecting a substantial portion of diabetic patients worldwide. Timely intervention is pivotal in mitigating the risk of blindness associated with DR, yet early detection remains a challenge due to the absence of early symptoms. Screening programs have emerged as a strategy to address this burden, and this paper delves into the role of artificial intelligence (AI) in advancing DR screening in Japan. There are two pathways for DR screening in Japan: a health screening pathway and a clinical referral path from physicians to ophthalmologists. AI technologies that realize automated image classification by applying deep learning are emerging. These technologies have exhibited substantial promise, achieving sensitivity and specificity levels exceeding 90% in prospective studies. Moreover, we introduce the potential of Generative AI and large language models (LLMs) to transform healthcare delivery, particularly in patient engagement, medical records, and decision support. Considering the use of AI in DR screening in Japan, we propose to follow a seven-step framework for systematic screening and emphasize the importance of integrating AI into a well-designed screening program. Automated scoring systems with AI enhance screening quality, but their effectiveness depends on their integration into the broader screening ecosystem. LLMs emerge as an important tool to fill gaps in the screening process, from personalized invitations to reporting results, facilitating a seamless and efficient system. However, it is essential to address concerns surrounding technical accuracy and governance before full-scale integration into the healthcare system. In conclusion, this review highlights the challenges in the current screening pathway and the potential for AI, particularly LLM, to revolutionize DR screening in Japan. The future direction will depend on leadership from ophthalmologists and stakeholders to address long-standing challenges in DR screening so that all people have access to accessible and effective screening. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Toward Innovation in Healthcare: An Analysis of the Digital Behavior of Older People in Europe and Japan for the Introduction of a Technological Coaching System.
- Author
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Möller, Johanna, Stara, Vera, Amabili, Giulio, Barbarossa, Federico, Riccardi, Giovanni Renato, Martella, Clotilda, Di Donna, Valentina, Palmier, Cecilia, Ogawa, Toshimi, Luc, Marine, Wieching, Rainer, Maranesi, Elvira, and Bevilacqua, Roberta
- Subjects
HOME environment ,HEALTH care industry ,WELL-being ,ACTIVE aging ,INTERNET ,EFFECT sizes (Statistics) ,HEALTH status indicators ,SATISFACTION ,MANN Whitney U Test ,SURVEYS ,SOCIOECONOMIC factors ,COMMUNICATION ,DESCRIPTIVE statistics ,CHI-squared test ,RESEARCH funding ,INFORMATION technology ,DIFFUSION of innovations ,OLD age - Abstract
(1) Background: The increasing older population and demographic shifts highlight the need to understand the digital profiles of older adults, a pivotal factor in developing innovative technologies like the e-VITA virtual coach. This personalized coach provides recommendations for sustainable well-being in a smart home environment. (2) Methods: This study focuses on analyzing the characteristics of older individuals categorized as Internet users (onliners) and non-users (offliners). European Social Survey data from 2021 were utilized for European analysis, determining Internet usage based on frequency. Offliners are defined as users who never use the Internet, and onliners as those who use it, albeit with different frequencies. In Japan, data from the 9th International Comparative Survey on the Lives and Attitudes of the Elderly were employed, based on the responses of 1367 subjects, which defined onliners as individuals using communication devices and offliners as those not utilizing fax machines, cell phones, or the Internet. (3) Results: This paper presents a primary analysis of older end-user context and perspectives, outlining effective strategies for the diffusion of an active and healthy aging coaching system in the market and society. (4) Conclusions: the study emphasizes the importance of analyzing digital behavior in any user-centered design approach to ensure the system's acceptance after deployment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
41. Empowering Smart Aging: Insights into the Technical Architecture of the e-VITA Virtual Coaching System for Older Adults.
- Author
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Naccarelli, Riccardo, D'Agresti, Francesca, Roelen, Sonja Dana, Jokinen, Kristiina, Casaccia, Sara, Revel, Gian Marco, Maggio, Martino, Azimi, Zohre, Alam, Mirza Mohtashim, Saleem, Qasid, Mohammed, Abrar Hyder, Napolitano, Giulio, Szczepaniak, Florian, Hariz, Mossaab, Chollet, Gérard, Lohr, Christophe, Boudy, Jérôme, Wieching, Rainer, and Ogawa, Toshimi
- Subjects
OLDER people ,ACTIVE aging ,SELF-efficacy ,SMART devices ,AGING ,INTELLIGENT sensors ,MULTISENSOR data fusion - Abstract
With a substantial rise in life expectancy throughout the last century, society faces the imperative of seeking inventive approaches to foster active aging and provide adequate aging care. The e-VITA initiative, jointly funded by the European Union and Japan, centers on an advanced virtual coaching methodology designed to target essential aspects of promoting active and healthy aging. This paper describes the technical framework underlying the e-VITA virtual coaching system platform and presents preliminary feedback on its use. At its core is the e-VITA Manager, a pivotal component responsible for harmonizing the seamless integration of various specialized devices and modules. These modules include the Dialogue Manager, Data Fusion, and Emotional Detection, each making distinct contributions to enhance the platform's functionalities. The platform's design incorporates a multitude of devices and software components from Europe and Japan, each built upon diverse technologies and standards. This versatile platform facilitates communication and seamless integration among smart devices such as sensors and robots while efficiently managing data to provide comprehensive coaching functionalities. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Discussion of So-Called "Architectural Heritage DNA" via a Case Study of the Conservation of the Nara Palace Site, Japan.
- Author
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Le, Vinh An and Nguyen, Thi Kim Nhung
- Subjects
CULTURAL pluralism ,WORLD Heritage Sites ,CULTURAL property ,TREATIES ,PALACES - Abstract
This study introduces a brief history of the discovery of and conservation efforts to preserve the Nara Palace Site in Japan, which brought about the recognition of this heritage site as a World Cultural Heritage location by UNESCO in 1996. Accordingly, the 1994 Nara Document on Authenticity plays an important role in contributing to Japanese cultural heritage conservation achievements, with the expansion of cultural diversity and heritage diversity and the concepts of values and authenticity, which proposed a new orientation in terms of awareness and openness to develop a broader vision when identifying architectural heritage values. Against this background, we first discuss the newly proposed concept of so-called "architectural heritage DNA" and its potential structure, providing a simple formula for appraising the authentic values of architectural heritage conservation works. Working within conservation theory, besides the doctrinal study of the 1994 Nara Document on Authenticity, this study also focuses on other important international conventions, such as the 1964 Venice Charter and the 1999 Burra Charter, to clarify the concepts of conservation, restoration, and reconstruction, adding the concept of inheritance between conservation and development, which addresses the lack of international conventions regarding cultural heritage conservation. The viewpoints expressed in this paper are based on the most common concepts of these international conventions but are interpreted in a novel, understandable, practical, and highly applicable approach suited to both the current socio-political situation and future scenarios. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Fusion of a Tooth with a Supernumerary Tooth: A Case Report and Literature Review of 35 Cases.
- Author
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Akitomo, Tatsuya, Kusaka, Satoru, Usuda, Momoko, Kametani, Mariko, Kaneki, Ami, Nishimura, Taku, Ogawa, Masashi, Mitsuhata, Chieko, and Nomura, Ryota
- Subjects
MAXILLA abnormalities ,SUPERNUMERARY teeth ,FUSED teeth ,PANORAMIC radiography ,INCISORS ,ORTHODONTICS ,ROOT canal treatment ,PALATE ,RARE diseases - Abstract
Tooth fusion is a dental anomaly with a prevalence of 0.1% in permanent dentition. The aim of this paper is to present the occurrence, region of fusion, and prognosis of fused tooth which is a very rare case in the literature. The authors present a very rare case with a maxillary right lateral incisor fused to a supernumerary tooth on the palatal side. The eruption was delayed, but eruption occurred naturally at 9 years and 6 months. However, cone-beam computed tomography at 11 years and 6 months revealed it was diagnosed as a fused tooth. The authors undertook a literature review over the past 10 years and found 30 articles about fused teeth between permanent teeth and supernumerary teeth. It was more common in males than females and there were no differences depending on the occurrence. Mesiodistal fusion was more common in the incisor region, while labiopalatal fusion was more common in the molar region. Most cases required dental treatment with a surgical approach, root canal treatment, or orthodontic treatment. The present study highlights the importance of long-term follow-up and suggests the region of fusion and prognosis of the fused tooth may vary depending on the occurrence. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Applying Religious Studies Discourse during Wartime: On Katō Totsudō's Discussion of Religious War.
- Author
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Nishimura, Akira
- Subjects
RELIGIOUS wars ,RELIGIOUS studies ,RELIGIOUS movements ,RELIGIONS ,DISCOURSE ,WAR & society - Abstract
This paper argues how the study of religion in Japan influenced the nation's conduct during the Asia-Pacific War (1931–1945). Specifically, the paper addresses the wartime national indoctrination texts of Katō Totsudō 加藤咄堂 (a.k.a. Katō Yūichirō 加藤熊一郎, 1870–1949). Although Katō was not strictly a religious scholar, analyzing Katō's texts is significant in understanding the influence of religious theory and religious studies discourse on Japanese society during the war. To illustrate this point, this paper introduces previous studies that have discussed the movements of religious scholars during the war. It then clarifies the significance of discussing Katō's texts, followed by an introduction to what has been revealed about Katō so far. The paper then examines Katō's wartime texts that discuss the relationship between war, faith and the readiness to die. The East–West comparison of views of life and death used by Katō was characterized as a wartime application of comparative religion. It was intended to emphasize Japan's superiority over other countries. Such features agitated Japanese readers to proactively enter the fight to the death through spiritual mobilization in a total war system. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
45. Japan's Corporate Governance Transformation: Convergence or Reconfiguration?
- Author
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Renou, Theo, Carraz, René, and Burger-Helmchen, Thierry
- Subjects
CORPORATE governance ,CORPORATE reform ,CAPITAL structure ,BOARDS of directors ,CAPITALISM - Abstract
Japanese firms have historically followed a country-specific model of corporate governance. Yet, Japan has had to adapt its corporate model over the last 30 years, along with the transformation of distinctive characteristics of Japanese capitalism in the same period. We review the historical evolution of Japanese corporate governance over the last three decades with a specific emphasis on the changes in the capital structure of major companies and the efforts to correct ineffective board of directors monitoring. By doing this, we investigate to what extent specific Japanese corporate governance features may explain the nation's economic situation over this period. Thereby, we try to clarify the influences that have presided over recent corporate governance reforms in Japan despite the existence of managerial failures and corporate scandals. This paper places itself into the debate over the diversity of capitalism as it portrays the specificities, differences, and converging trends of Japanese corporate governance practices. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
46. Development and Reproduction of a Japanese Strain of Ctenolepisma calvum (Ritter, 1910) at Room Temperature.
- Author
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Watanabe, Hiroki, Shimada, Megumi, Sato, Yoshinori, and Kigawa, Rika
- Subjects
APTERYGOTA ,EGG incubation ,OVIPARITY ,EGGS ,TEMPERATURE ,INSECT development ,MOLTING - Abstract
Simple Summary: Ctenolepisma calvum, commonly known as the ghost silverfish, is an insect that lives in buildings, including museums, libraries, and archives. It is regarded as a pest of paper-based objects. Recently, C. calvum was discovered in several areas of Japan for the first time, and it may be a new threat to the conservation of collections that are of cultural and historical importance. Because the biological characteristics of this species in Japan are not well known, we observed their growth and reproduction. We found that eggs were laid from April to November, especially in early June, and eggs usually hatched within two months. The young insects grew through molting, and started laying eggs the next year. Females laid around 10 or more eggs at one time, and they were able to lay eggs once or more per year. Through this study, only females were found, and they were able to reproduce without male individuals. Further research on practical control methods for this species in museums and other facilities is required. Ctenolepisma calvum (Ritter, 1910) (Zygentoma: Lepismatidae) is a primitive wingless insect that causes damage to paper, and it is regarded as a pest of collections in museums, archives, and libraries. This species was recently discovered in Japan for the first time and may have already spread over large areas of Japan, but, currently, no information is available on the biological characteristics of C. calvum in Japan. In this study, we observed the processes of development and reproduction of C. calvum found in Japan at room temperature. Oviposition was observed from April to November, with a peak in early June. The average egg period was 56.9 days at average temperatures above 24.0 °C, and was 72.4 days at average temperatures below 24.0 °C. The 1st, 2nd, and 3rd instars lasted 4.7 days, 13.2 days, and 26.1 days on average, respectively, at average temperatures above 22.0 °C. Average instar periods were 23–28 days in 4th–7th instars and tended to increase in later instars. Instar periods also increased when the average temperature was 22.0 °C or lower. In individual rearing, the longest-living individual lived for approximately two years, up to the 15th instar. The head width grew at an approximate ratio of 1.1 per molt. First oviposition occurred at the 10th or 11th instar. Individually observed females oviposited once or twice a year, laying 6–16 eggs at one time, but females at least two years old laid 78.2 eggs per year on average in a mass-culture cage. Through this study, only females were found, and the mature females produced their progenies parthenogenetically. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
47. Japanese Economic Performance after the Pandemic: A Sectoral Analysis.
- Author
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Thorbecke, Willem
- Subjects
ECONOMIC indicators ,BALANCE of trade ,BALANCE of payments ,COVID-19 pandemic ,PANDEMICS ,FOREIGN study - Abstract
The COVID-19 crisis battered the Japanese economy. The purpose of this paper is to investigate whether the pandemic has left scars. To this end, it employs out-of-sample forecasting models and detailed stock market data for 30 sectors and disaggregated current account data for the 3 years after the first case occurred. The findings indicate that stock prices in sectors such as tourism, education, and cosmetics remain far below forecasted values after three years. Office equipment and semiconductor stock prices initially fell more than predicted but have since recovered. Other sectors such as bicycle parts and home appliances gained at first but are now performing as expected. Sectors such as home delivery and electronic entertainment continue to outperform. The results also indicate that income flows from Japanese investments abroad are much larger than forecasted, keeping the Japanese current account in surplus even as imports of oil and commodities have created persistent trade deficits. Since the travails of hard-hit sectors such as tourism reflect their exposure to the COVID-19 pandemic rather than bad choices made by firms, policymakers should consider employing cost-effective ways to stimulate economic activity in these sectors. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
48. New Concept of Forest Medicine.
- Author
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Li, Qing
- Subjects
PREVENTIVE medicine ,ENVIRONMENTAL medicine ,MEDICAL sciences ,HUMAN ecology ,FORESTS & forestry - Abstract
Forest bathing was proposed in Japan in 1982 for the purpose of reducing stress and health management, and research on the health promotion and disease prevention effects of forest bathing began in Japan in 2004. Since then, the author's research team has published many papers and, in 2012, established Forest Medicine as a new preventive medicine. Imagine a new medical science that could let you know how to be more active, more relaxed, healthier, and happier, with reduced stress and a reduced risk of lifestyle-related diseases. This new medical science is Forest Medicine. Forest Medicine studies the effects of forest environments on human health and is a new interdisciplinary science that belongs to the categories of environmental and preventive medicine. On the other hand, more than 10 years have passed since then, and a lot of evidence has been obtained and many articles regarding Forest Medicine have been published. Therefore, in this review, the author proposes a new concept of Forest Medicine, based on the new evidence and published papers, with the psycho-neuro-endocrino-immune network in mind. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
49. A Feasibility Study on Monitoring Earthquake-Caused Furniture Vibrations Using Radiofrequency Identification Sensor Tags.
- Author
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Song, Zequn, Rahmadya, Budi, Sun, Ran, and Takeda, Shigeki
- Subjects
RADIO frequency ,RADIO frequency identification systems ,FURNITURE ,EFFECT of earthquakes on buildings ,FEASIBILITY studies ,DETECTORS - Abstract
This paper presents a feasibility study on monitoring earthquake-caused furniture vibrations using radiofrequency identification (RFID) sensor tags. Finding unstable objects by exploiting the vibrations caused by weaker earthquakes is effective as one of the potential countermeasures for large-scale earthquakes in earthquake-prone areas. For this purpose, a previously proposed ultrahigh-frequency (UHF)-band RFID-based batteryless vibration/physical shock sensing system enabled long-term monitoring. This RFID sensor system introduced standby and active modes for long-term monitoring. This system enabled lower-cost wireless vibration measurements without affecting the vibration of furniture because the RFID-based sensor tags provide lightweight, low-cost, and battery-free operations. This RFID sensor system observed earthquake-cased furniture vibrations in a room on the fourth floor of a building eight stories high at Ibaraki University, Hitachi, Ibaraki, Japan. The observation results revealed that the RFID sensor tags identified the vibrations of furniture caused by earthquakes. The RFID sensor system also observed the vibration duration times of the objects in a room and specified the most unstable reference object. Hence, the proposed vibration sensing system helped achieve safe living in indoor environments. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
50. Cultural Exchange in the East Asian Seas in Light of the Acceptance of Mazu Beliefs by Japanese Sea Gods.
- Author
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Li, Zhuang and Liu, Kehua
- Subjects
CULTURAL relations ,GODS ,LOCAL culture ,FISHERIES ,CULTURE ,GOD ,SPIRITUALITY - Abstract
This paper examines the local beliefs of the sea gods in Japan, represented by the Sumiyoshi Sanjin 住吉三神, and their acceptance of the foreign culture of Mazu 媽祖. While there are many differences between the two in terms of their backgrounds, functions, and identities, the evolution of Japanese sea god beliefs has been characterized by a gradual acceptance of Mazu culture, culminating in the co-culturing of the two in shrines. This paper adopts an empirical research design to compare the local beliefs of the sea gods in Japan with the culture of Mazu and to analyze the reasons for their acceptance of Mazu culture from the perspective of the other. This article argues that the Japanese sea gods accepted Mazu for two reasons: the tangibility of Mazu's beliefs and the superb spirituality of Mazu's beliefs. Superb spirituality means effective protection, both in terms of safety at sea and swiftness in rescuing shipwrecks, and in terms of the smooth running of the fishing industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
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