Article
Environmental Sciences
Aris Ismanto, Tony Hadibarata, Risky Ayu Kristanti, Denny Nugroho Sugianto, Sugeng Widada, Warsito Atmodjo, Alfi Satriadi, Malya Asoka Anindita, Amal M. Al-Mohaimeed, Arshad Mehmood Abbasi
Summary: This study assessed the prevalence and distribution of microplastics in water and sediments of the Pekalongan River in Indonesia. The study found higher concentrations of microplastics in water compared to sediments. Fragment and film microplastics were the main components, with microplastics measuring less than 1 mm constituting more than half of the total. Colored microplastics, particularly blue and black microplastics, were also prominent. Polystyrene, polyester, and polyamide were identified as the primary polymer components.
MARINE POLLUTION BULLETIN
(2023)
Article
Geochemistry & Geophysics
Sumanta Pasari, Andrean V. H. Simanjuntak, Anand Mehta, Neha, Yogendra Sharma
Summary: The study quantified the current earthquake hazard for 29 cities of Java by analyzing earthquake potential scores using seismicity statistics. The results showed variations in earthquake risk among different cities, providing insights for decision-makers and risk mitigation efforts in related fields.
PURE AND APPLIED GEOPHYSICS
(2021)
Article
Agronomy
Noladhi Wicaksana, Haris Maulana, Yuyun Yuwariah, Ade Ismail, Yasmin Anissa Robles Ruswandi, Dedi Ruswandi
Summary: This study aimed to determine the impact and relationships of stable and high-yielding maize hybrids in different environments, as well as select suitable hybrids. The results showed that dynamic stability estimations were effective for selecting hybrids in favorable environments, while other estimations were for static stability evaluation. Three high-yielding and stable maize hybrids were identified for further development.
Article
Biodiversity Conservation
Dipta Sumeru Rinandio, Hendra Helmanto, Rizmoon Nurul Zulkarnaen, Enggal Primananda, Arief Hamidi, Iyan Robiansyah
Summary: Java Island's high population and economic activities have greatly affected its plant diversity, particularly the vulnerable endemic plants. This study presents a dataset of 652 endemic plant species on Java Island, with a focus on trees and herbs. Most of the species have not been assessed for conservation status, and only a small number are protected or listed under international agreements or national law.
BIODIVERSITY DATA JOURNAL
(2022)
Article
Construction & Building Technology
Pentti Kuurola, Tuomas Raunima, Joonas Ketko, Oluyemi Toyinbo, Juha Vinha, Ulla Haverinen-Shaughnessy
Summary: Ventilation in buildings is important for indoor air quality, health, and comfort. This study investigated the effects of shutting down mechanical ventilation at night on indoor air quality and health. The results showed that shutting down ventilation at night had no noticeable effects on perceived indoor air quality and health outcomes.
ENERGY AND BUILDINGS
(2023)
Article
Green & Sustainable Science & Technology
Hari Wahyu Wijayanto, Kai-An Lo, Hery Toiba, Moh Shadiqur Rahman
Summary: This study examines the factors influencing farmers' adoption of agroforestry and its impact on their welfare. The findings suggest that agroforestry adoption is influenced by land type, farmers' age and education, and their participation in social activities, cooperatives, and farmers' groups. Adopting agroforestry has a positive impact on farmers' subjective well-being, as indicated by higher life satisfaction and happiness.
Review
Biochemistry & Molecular Biology
Ari Satia Nugraha, Riza Putri Agustina, Syafi Mirza, Dinar Mutia Rani, Naura Bathari Winarto, Bawon Triatmoko, Antonius Nugraha Widhi Pratama, Paul A. Keller, Phurpa Wangchuk
Summary: This study investigated the phytochemical constituents and pharmacological activities of 41 medicinal plants used by the indigenous people of Tengger in Indonesia. Out of 33 species studied, a variety of pharmacologically active compounds were identified, including anti-inflammatory, antimicrobial, and antihypertensive properties.
Article
Environmental Sciences
Arie Dwika Rahmandhana, Muhammad Kamal, Pramaditya Wicaksono
Summary: Mangrove mapping at the species level was conducted by classifying and grouping mangrove species based on their spectral reflectance characteristics. The mapping results were evaluated using different algorithms and found to have varying levels of accuracy. The study highlights the importance of accurately mapping mangrove species for coastal ecosystem management.
Article
Geochemistry & Geophysics
Muhammad Arif Munandar, Josaphat Tetuko Sri Sumantyo, Mohammad Pramono Hadi, Atsushi Higuchi, Muh Aris Marfai, Mohamad Romy
Summary: This study proposes a method to identify aviation turbulence using ADS-B altitude change data and Himawari-8 satellite's spatial temperature difference. The results show that turbulence occurs in the northern central part of Java Island, with non-convective turbulence predominant in July and convective turbulence prevalent in December. This technique will be used to monitor turbulence distribution in Indonesia in the future.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2023)
Article
Public, Environmental & Occupational Health
Jen Fuk Liem, Muchtaruddin Mansyur, Dewi S. Soemarko, Aria Kekalih, Imam Subekti, Franciscus D. Suyatna, Dwi A. Suryandari, Safarina G. Malik, Bertha Pangaribuan
Summary: The study revealed that farmers in Indonesia are at risk of unsafe pesticide usage, particularly exposure to chlorpyrifos (CPF) which can impact their health. Many farmers do not use proper personal protective equipment when using multiple pesticide mixtures, highlighting the need for enhanced training on pesticide usage methods to reduce exposure risks.
Article
Microbiology
Rury Mega Wahyuni, Takako Utsumi, Zayyin Dinana, Laura Navika Yamani, Juniastuti, Ishak Samuel Wuwuti, Elsa Fitriana, Emily Gunawan, Yujiao Liang, Fitratul Ramadhan, Soetjipto, Maria Inge Lusida, Ikuo Shoji
Summary: This study investigated the prevalence and distribution of rotavirus genotypes among children in Indonesia from 2016 to 2018, revealing highly endemic RVAs in South Sumatra and West Papua. Equine-like G3 strains were predominant in South Sumatra and West Papua, with dynamic changes observed in rotavirus genotypes from equine-like G3 to human genotypes. Continuous monitoring may be necessary in isolated areas of Indonesia to track and prevent further spread of RVAs.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Engineering, Chemical
An Galicic, Jan Rozanec, Andreja Kukec, Tanja Carli, Saso Medved, Ivan Erzen
Summary: Poor indoor air quality in schools has a negative impact on students' health and learning performance. This study aimed to identify factors affecting indoor air quality in primary schools. A new questionnaire was developed based on a systematic literature review, and its validity was assessed. The results showed that the location of the school and the distance from potential pollution sources, particularly traffic, were important outdoor factors. No dominant factor was found among the indoor factors. The study highlights the importance of spatial location in addressing indoor air quality issues in schools.
Article
Virology
Andi Wahyono, Rudi Hari Murti, Sedyo Hartono, Tri Rini Nuringtyas, Arman Wijonarko, Mulyantoro Mulyantoro, Deni Firmansyah, Ahmad Afifuddin, Innez Candri Gilang Purnama
Summary: This study provides comprehensive information about the symptoms, incidence and severity, whitefly biotypes, and dominance status of three Begomovirus species in pepper-producing areas in Java. B. tabaci biotype B was the most commonly detected, and the incidence of begomovirus infection was high in both lowlands and highlands. PepYLCIV, as a single infection, was the dominant species causing severe infection in all sampled locations.
Article
Construction & Building Technology
Jian Xu, Muchun Li, Dandan Huang, Yuxin Wei, Sijia Zhong
Summary: This study explored the subjective evaluation of indoor environmental quality in hotels with the same physical environment but different decoration styles. The study found that the light environment and non-light visual factors have the greatest impact on the evaluation of decoration style. Different decoration styles of hotels also have variations in specific environmental factors.
Article
Biochemistry & Molecular Biology
Susanti M. M. Lestari, Sri H. H. Hidayat, Purnama Hidayat, Eui-Joon Kil, Sukchan Lee, Sang-Mok Kim, Kyeong-Yeoll Lee
Summary: This study compares the detection of Begomoviruses in whiteflies and host plants, and finds that B. tabaci acquires Begomoviruses from plants at different rates. This study provides important information on the potential variation in the transmission mechanism of Begomoviruses.
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY
(2023)
Article
Environmental Sciences
Yin Mun H'ng, Naoki Ikegaya, Sheikh Ahmad Zaki, Aya Hagishima, Ahmad Faiz Mohammad
Summary: The aim of this study was to clarify the effects of high-rise buildings on the mean and turbulent wind speeds within the canopy layer of an urban university campus in Malaysia. The study found that existing models have limitations in predicting wind speeds in specific urban morphologies, and proposed the use of probability density functions and normal distribution to predict wind speeds.
Article
Construction & Building Technology
Uelun-Ujin Purev, Aya Hagishima, Munkhbayar Buyan
Summary: This study conducted field measurements on the thermal environment within gers heated by coal stoves. The results showed diverse daily fluctuations of indoor temperature influenced by the unstable heating power of stoves. The occasional outliers in indoor air temperature beyond the comfort range contrasted with the operative temperature, which was mostly within the comfort range due to the direct radiation of stoves.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Jiajun Lyu, Tetsushi Ono, Ataru Sato, Aya Hagishima, Jun Tanimoto
Summary: In recent years, a bottom-up approach based on building-energy simulations coupled with stochastic modelling of occupant behaviours has been developed to estimate the effect of diverse and stochastic occupant behaviours on energy loads. This study focuses on modelling the state transitional probability of occupants' heat pump use and analyzing the seasonal differences in relation to outdoor temperature. The study proposes a revised model considering seasonal behaviour change, and the estimation results are consistent with measured data.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Nishat Tasnim Toosty, Aya Hagishima, Wasimul Bari, Sheikh Ahmad Zaki
Summary: Remote work became the new norm during the COVID-19 pandemic, and this study investigated the impact of Malaysia's Movement Control Order (MCO) on the air conditioner (AC) usage behavior of remote workers. The study found that stopping AC use during remote work was the most significant behavior change due to the MCO, and factors such as age and ethnicity influenced AC-usage behavior in remote work.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2022)
Article
Green & Sustainable Science & Technology
Betty Lala, Solli Murtyas, Aya Hagishima
Summary: This study examined how children adapt to the thermal conditions in classrooms without air conditioning in Dehradun City, India. The results showed that most of the classrooms did not meet the students' comfort requirements. Children had low sensitivity to temperature variations, but were still satisfied with the thermal conditions even in extreme heat risk situations. Adjusting clothing, opening windows and doors, and using ceiling fans were found to be the most affordable ways to optimize indoor thermal comfort.
Article
Construction & Building Technology
Noor Syazwanee Md Taib, Sheikh Ahmad Zaki, Hom Bahadur Rijal, Azli Abd Razak, Aya Hagishima, Waqas Khalid, Mohamed Sukri Mat Ali
Summary: Overcooling indoor spaces in hot-and-humid regions may result in excessive usage of air conditioning. It is important to understand the thermal perception and preferences of occupants in order to determine the cooling energy required. This study found that occupants generally felt more comfortable when the indoor air temperature was increased, but their preferred temperature was lower than the current thermal comfort temperature.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Tetsushi Ono, Aya Hagishima, Jun Tanimoto
Summary: This study quantifies the potential for peak demand reduction of aggregated demand from different dwelling sizes based on data analysis of demand curves from 496 dwellings in Osaka. It provides a basis for promoting the technological development of residential appliances remotely controlled by IoT for demand response.
ELECTRONICS AND COMMUNICATIONS IN JAPAN
(2022)
Article
Construction & Building Technology
Betty Lala, Amogh Biju, Anmol Vanshita, Anmol Rastogi, Kunal Dahiya, Srikant Manas Kala, Aya Hagishima
Summary: The thermal comfort in the classroom is crucial for student health and educational outcomes. However, measuring thermal comfort is complex due to subjective metrics and the use of machine learning for prediction. This study addresses the challenge of selecting the most suitable thermal comfort metric(s) for a given indoor space by evaluating multiple metrics and proposing an algorithm. The results show that machine learning models can accurately predict thermal comfort and occupant behavior, with the highest accuracy achieved using a small subset of metrics.
Article
Construction & Building Technology
Jiajun Lyu, Aya Hagishima
Summary: This study aimed to develop a prediction model for residential household AC usage based on monitoring data of appliance-level electricity use in a residential community in Osaka, Japan. The study identified individual operation schedules and thermal preferences as the main factors for diverse AC behaviors and used clustering analysis to classify households into different behavior patterns. The optimized prediction model showed satisfactory performance for predicting the on/off state of AC usage.
Article
Construction & Building Technology
Solli Murtyas, Yuki Minami, Kusumaningdyah Nurul Handayani, Aya Hagishima
Summary: Prolonged exposure to indoor dampness leads to excessive mould growth, which poses health problems for residents and damages building structures. This study in Surakarta, Indonesia investigated dampness and mould growth in low-cost dwellings and found that plywood board walls and smaller volumes were more susceptible to moulding. The majority of participants expressed dissatisfaction with indoor air quality due to sewage odors and dampness, indicating a perception of inadequate air ventilation. The study provides a reference for developing standard guidelines to assess and mitigate mould risks in Indonesia's dwellings.
Article
Meteorology & Atmospheric Sciences
Betty Lala, Aya Hagishima
Summary: Children in developing countries, such as India, are highly vulnerable to the adverse effects of climate change, particularly primary school students who are most at risk during extreme weather conditions like intensified heat waves. However, there is a lack of understanding and mitigation strategies for children's vulnerabilities. To address this, a study surveyed 335 primary school teachers in seven Indian cities, gathering data on classroom experiences during heat waves. The study highlights the impacts of heat exposure on children's health and emphasizes the need for heat risk management and policy measures in primary schools.
Article
Architecture
Nishat Tasnim Toosty, Tetsushi Ono, Shota Shimoda, Aya Hagishima
Summary: A statistical analysis was conducted on the 2-year electricity consumption of 479 dwellings in a residential building, identifying annual peak events and their contributing factors for different aggregation sizes. Generalized linear models and generalized linear mixed models were used to reveal the diverse U-shaped relationships between outdoor temperature and peak demand occurrence, as well as the impact of the part of the week/year. The study also clarified the contribution of each appliance in reducing the annual peak demand according to the aggregation size, with living/dining room outlets and air conditioners showing significant demand response potential.
JAPAN ARCHITECTURAL REVIEW
(2023)
Article
Construction & Building Technology
Nurul Izzati, Sheikh Ahmad Zaki, Hom Bahadur Rijal, Jorge Alfredo Ardila Rey, Aya Hagishima, Nurizzatul Atikha
Summary: The use of an air conditioner is essential in hot and humid climates to provide a comfortable environment. A field study was conducted in Malaysia to understand respondent behavior and develop a model of thermal comfort. The findings suggest that water intake, clothing insulation, and outdoor temperature affect indoor comfort.
