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  • Article
  • Open Access
47 Citations
11,012 Views
18 Pages

Drug Use before and during Pregnancy in Japan: The Japan Environment and Children’s Study

  • Hidekazu Nishigori,
  • Taku Obara,
  • Toshie Nishigori,
  • Hirohito Metoki,
  • Mami Ishikuro,
  • Satoshi Mizuno,
  • Kasumi Sakurai,
  • Nozomi Tatsuta,
  • Ichiko Nishijima and
  • Japan Environment & Children’s Study Group
  • + 6 authors

Purpose: To elucidate drug use before and during pregnancy in Japan. Methods: The Japan Environment and Children’s Study (JECS) is an ongoing nationwide birth cohort study. We analyzed data from JECS involving cases where drugs were used for 12 month...

  • Article
  • Open Access
6 Citations
2,915 Views
21 Pages

Deep Water PAH Cycling in the Japan Basin (the Sea of Japan)

  • Yuliya Koudryashova,
  • Tatiana Chizhova,
  • Mutsuo Inoue,
  • Kazuichi Hayakawa,
  • Seiya Nagao,
  • Evgeniya Marina and
  • Rodrigo Mundo

16 December 2022

A vertical pattern of fractionated polycyclic aromatic hydrocarbons (PAH) was studied in the Japan Basin in the Sea of Japan. The highest PAH concentration was found in the mesopelagic realm, possibly resulting from deep convection and/or subduction...

  • Systematic Review
  • Open Access
5 Citations
4,389 Views
21 Pages

A Review of Climate Security Discussions in Japan

  • Christo Odeyemi and
  • Takashi Sekiyama

This review paper provides preliminary analysis and answers to three key questions that were identified by synthesizing qualitative evidence from climate security research in Japan. The questions identified are: (1) Has Japan participated in the glob...

  • Article
  • Open Access
12 Citations
4,809 Views
9 Pages

Suicide Mortality in Foreign Residents of Japan

  • Stuart Gilmour,
  • Haruko Hoshino and
  • Bibha Dhungel

Suicide is a major public health issue in Japan, with very high rates of death compared to other countries in the Asia Pacific. Foreigners living in Japan may be at increased risk of suicide, but little is known about how their risk of suicide differ...

  • Article
  • Open Access
4 Citations
5,486 Views
13 Pages

Preliminary Examination of an Appropriate Price Calculation Method and Medical Treatment Costs for Foreign Visitors in Japan

  • Tomoyuki Takura and
  • Study Group: Research on Appropriate Medical Treatment Prices for Foreigners Visiting Japan

This study proposes a method for calculating the appropriate medical treatment price level for foreign visitors (FVs) in Japan. Hospital management costs and foreign prices were analyzed from a market principles perspective to determine the medical t...

  • Review
  • Open Access
78 Citations
10,130 Views
13 Pages

A Review of the Methane Hydrate Program in Japan

  • Ai Oyama and
  • Stephen M. Masutani

21 September 2017

In this paper, methane hydrate R&D in Japan was examined in the context of Japan’s evolving energy policies. Methane hydrates have been studied extensively in Japanese national R&D programs since 1993, with the goal of utilizing them as an en...

  • Article
  • Open Access
6 Citations
9,358 Views
26 Pages

14 March 2021

This study focuses on what Japan’s Immigration Control and Refugee Recognition Act (ICRRA) calls ‘Special Permission to Stay’ (zairyū tokubetsu kyoka) on humanitarian grounds (SPS), and evaluates the extent to which SPS provides effective internation...

  • Feature Paper
  • Review
  • Open Access
74 Citations
16,739 Views
17 Pages

The Oral Healthcare System in Japan

  • Takashi Zaitsu,
  • Tomoya Saito and
  • Yoko Kawaguchi

This paper describes the present Japanese oral healthcare system and outlines the future challenges and perspectives for Japan. Japan has developed a system for providing high-quality and appropriate health care efficiently through a universal health...

  • Article
  • Open Access
7 Citations
6,672 Views
17 Pages

Effectiveness of Text-Only Cigarette Health Warnings in Japan: Findings from the 2018 International Tobacco Control (ITC) Japan Survey

  • Janet Chung-Hall,
  • Geoffrey T. Fong,
  • Gang Meng,
  • Mi Yan,
  • Takahiro Tabuchi,
  • Itsuro Yoshimi,
  • Yumiko Mochizuki,
  • Lorraine V. Craig,
  • Janine Ouimet and
  • Anne C. K. Quah

Health warnings are an effective strategy for communicating the health harms of smoking, encouraging quitting, and preventing smoking initiation. This study examines the effectiveness of existing text-only health warnings, identifies key predictors o...

  • Article
  • Open Access
22 Citations
8,668 Views
13 Pages

What Constitutes Traditional and Modern Eating? The Case of Japan

  • Gudrun Sproesser,
  • Sumio Imada,
  • Isato Furumitsu,
  • Paul Rozin,
  • Matthew B. Ruby,
  • Naomi Arbit,
  • Claude Fischler,
  • Harald T. Schupp and
  • Britta Renner

25 January 2018

Traditional Japanese dietary culture might be a factor contributing to the high life expectancy in Japan. As little is known about what constitutes traditional and modern eating in Japan, the aims of the current study were to (1) comprehensively comp...

  • Article
  • Open Access
27 Citations
13,141 Views
11 Pages

The CO2 Emission Factor of Water in Japan

  • Yasutoshi Shimizu,
  • Satoshi Dejima and
  • Kanako Toyosada

28 September 2012

From the viewpoint of combating global warming in Japan, measures to reduce emissions from the activities involved in daily life have been accelerated in concurrence with the efforts made in the industrial sector to save energy. As one such measure,...

  • Review
  • Open Access
12 Citations
5,785 Views
19 Pages

21 April 2023

With growing concern about risks related to energy security around the world, the development of hydrogen cooperation between India and Japan has become very important to ensure the economic security of the two countries and to deepen economic cooper...

  • Article
  • Open Access
1 Citations
3,087 Views
16 Pages

22 October 2025

This study investigates plastic waste management, focusing on Japan. The volume of plastic waste in Japan is more than eight million tons, and less than a quarter of the plastic waste is subjected to recycling. Considering that Japan is an archipelag...

  • Article
  • Open Access
3 Citations
2,417 Views
20 Pages

Cyclability in Japan: Toward a Comprehensive National Assessment

  • Lucas Belliard,
  • Akinori Morimoto and
  • Naohiro Kitano

13 February 2025

Japan is a unique country in terms of mobility. While the popularity of bicycles as a practical and environmentally friendly means of transport is growing worldwide, particularly since the COVID crisis, bicycle use in Japan has been declining for ove...

  • Article
  • Open Access
15 Citations
7,537 Views
10 Pages

Secondhand Smoke Exposure in Public Places and Support for Smoke-Free Laws in Japan: Findings from the 2018 ITC Japan Survey

  • Genevieve Sansone,
  • Geoffrey T. Fong,
  • Gang Meng,
  • Lorraine V. Craig,
  • Steve S. Xu,
  • Anne C. K. Quah,
  • Janine Ouimet,
  • Yumiko Mochizuki,
  • Itsuro Yoshimi and
  • Takahiro Tabuchi

Comprehensive smoke-free policies such as those called for by the WHO FCTC are the only way to protect the public effectively from the harms of secondhand smoke (SHS), yet Japan has been slow to implement this important health measure. This study exa...

  • Article
  • Open Access
3 Citations
3,029 Views
22 Pages

11 July 2022

CO2 emissions embodied in domestic trade between Japanese prefectures are gradually increasing and becoming an important growth point in the country’s CO2 emissions. The primary objective of this study is to evaluate the CO2 emissions embodied...

  • Article
  • Open Access
7 Citations
5,790 Views
18 Pages

29 November 2020

This study presents an approach for estimating the offshore wind potential of Japan. Bathymetry data (1 km mesh) and near shore wind speed data of the year 2018 were used to assess the potential. A turbine with a peak power of 10.6 MW was employed fo...

  • Article
  • Open Access
15 Citations
3,694 Views
9 Pages

Allergic Disorders and Risk of Anemia in Japanese Children: Findings from the Japan Environment and Children’s Study

  • Limin Yang,
  • Miori Sato,
  • Mayako Saito-Abe,
  • Yumiko Miyaji,
  • Mami Shimada,
  • Chikako Sato,
  • Minaho Nishizato,
  • Natsuhiko Kumasaka,
  • Hidetoshi Mezawa and
  • on behalf of the Japan Environment and Children’s Study (JECS) Group
  • + 2 authors

17 October 2022

Previous epidemiological studies have reported an increased risk of anemia in people with allergic disorders. However, previous studies have followed a cross-sectional design. The aim of this study was to investigate the association between the two c...

  • Article
  • Open Access
4 Citations
3,652 Views
12 Pages

Competitive Positioning of Mexican Pork in Japan

  • Jaciel Ramsés Méndez-León,
  • Dena María Jesús Camarena-Gómez and
  • Lizbeth Salgado-Beltrán

20 February 2023

Historically, Mexico has distinguished itself by its strong participation in exports to the US market; however, the pork sector’s main destination is the Asian market, particularly Japan. Hence, this document aims to show the competitive positi...

  • Review
  • Open Access
8 Citations
8,103 Views
17 Pages

The Role of Data-Driven Agritech Startups—The Case of India and Japan

  • Divya Suresh,
  • Abhishek Choudhury,
  • Yinjia Zhang,
  • Zhiying Zhao and
  • Rajib Shaw

26 May 2024

Global climate change poses many threats, with significant consequences for crop productivity and food security. The agricultural sectors in India and Japan face multiple problems, such as pre-harvest problems (volatility in input prices), post-harve...

  • Systematic Review
  • Open Access
4 Citations
4,299 Views
31 Pages

Suicide Interventions in Spain and Japan: A Comparative Systematic Review

  • Noelia Lucía Martínez-Rives,
  • María del Pilar Martín Chaparro,
  • Bibha Dhungel,
  • Stuart Gilmour,
  • Rory D. Colman and
  • Yasuhiro Kotera

(1) Background: This systematic review presents an overview of psychological interventions in suicide published between 2013 and 2023 in Spain and Japan, sparked by Spain’s alarming recent increase in suicide rates and the potential exemplar of...

  • Article
  • Open Access
10 Citations
3,640 Views
11 Pages

The National Database of Health Insurance Claims and Specific Health Checkups of Japan (NDB) Open Data Japan is helpful for attaining simple and comprehensive understanding of medical care in Japan. Herein, we investigated the transition of anti-HIV-...

  • Article
  • Open Access
78 Citations
15,920 Views
22 Pages

14 October 2018

In recent years, Japan has undergone an unprecedented increase in farmland abandonment, which not only causes serious environmental problems and rural landscape loss, but also has a significant impact on socio-economic conditions and the livelihood o...

  • Article
  • Open Access
4 Citations
6,392 Views
27 Pages

14 February 2022

This paper investigates the Japanese Nichiren Buddhist organization, Soka Gakkai (SG), whose members have supported the political party known as Kōmeitō, or Clean Government Party, in Japan for over half a century. SG members have often bee...

  • Article
  • Open Access
5 Citations
10,165 Views
19 Pages

The Academic Mobility of Students from Kazakhstan to Japan: Problems and Prospects

  • Aktolkyn Rustemova,
  • Serik Meirmanov,
  • Akito Okada,
  • Zhanar Ashinova and
  • Kamshat Rustem

13 August 2020

Background: Despite the internationalization of higher education (IoHE) in Kazakhstan and it being among the top 15 countries sending students abroad, the level of student mobility between Kazakhstan and Japan and factors influencing it have not been...

  • Feature Paper
  • Article
  • Open Access
2 Citations
5,144 Views
16 Pages

11 October 2017

The question motivating this essay is how tantric Buddhist practitioners in Japan understood language such as to believe that mantra, dhāraṇī, and related forms are efficacious. “Extraordinary language” is introduced as a cover term for these several...

  • Article
  • Open Access
14 Citations
5,645 Views
12 Pages

Hypertensive Disorders of Pregnancy in Relation to Coffee and Tea Consumption: The Japan Environment and Children’s Study

  • Yoko Kawanishi,
  • Aiko Kakigano,
  • Takashi Kimura,
  • Satoyo Ikehara,
  • Takuyo Sato,
  • Takuji Tomimatsu,
  • Tadashi Kimura,
  • Hiroyasu Iso and
  • on behalf of the Japan Environment and Children’s Study Group

24 January 2021

Background: The association between coffee/tea intake and hypertensive disorders of pregnancy (HDP) remains unclear. This study aimed to investigate the association of caffeine, coffee, and tea intake during pregnancy with the risk of HDP. Methods: W...

  • Article
  • Open Access
4 Citations
3,483 Views
9 Pages

Incidence Trend of Follicular Lymphoma in Taiwan Compared to Japan and Korea, 2001–2019

  • Liang-Chun Chiu,
  • Chih-Wen Lin,
  • Hung-Ju Li,
  • Jian-Han Chen,
  • Fu-Cheng Chuang,
  • Sheng-Fung Lin,
  • Yu Chang and
  • Yu-Chieh Su

10 February 2023

A continuous increase in follicular lymphoma has been observed in Taiwan, Japan, and South Korea over the last few decades. This study aimed to evaluate the difference in incidence trends of follicular lymphoma in Taiwan, Japan, and South Korea betwe...

  • Review
  • Open Access
2 Citations
5,391 Views
19 Pages

Colorectal cancer (CRC) remains a major health burden in Japan, with precision medicine playing an increasingly critical role in treatment optimization. Key biomarkers, including RAS, BRAF, microsatellite instability/mismatch repair, and human epider...

  • Review
  • Open Access
8 Citations
7,439 Views
14 Pages

This research paper investigates the evolving defense cooperation between India and Japan in the context of the strategic landscape in the Indo-Pacific region, particularly considering China’s rise. The existing literature recognizes China&rsqu...

  • Article
  • Open Access
19 Citations
3,495 Views
13 Pages

Dietary Inflammatory Index during Pregnancy and the Risk of Intrapartum Fetal Asphyxia: The Japan Environment and Children’s Study

  • Hyo Kyozuka,
  • Tsuyoshi Murata,
  • Toma Fukuda,
  • Akiko Yamaguchi,
  • Aya Kanno,
  • Shun Yasuda,
  • Akiko Sato,
  • Yuka Ogata,
  • Masahito Kuse and
  • the Japan Environment and Children’s Study (JECS) Group
  • + 5 authors

13 November 2020

We aimed to examine the impact of a daily pro-inflammatory diet during pregnancy on intrapartum fetal acidemia using a large birth cohort study in Japan. We used data on singleton pregnancies in the Japan Environment and Children’s Study (JECS) invol...

  • Article
  • Open Access
42 Citations
6,408 Views
14 Pages

Detection of Jingmenviruses in Japan with Evidence of Vertical Transmission in Ticks

  • Daisuke Kobayashi,
  • Ryusei Kuwata,
  • Toshiya Kimura,
  • Hiroshi Shimoda,
  • Ryosuke Fujita,
  • Astri Nur Faizah,
  • Izumi Kai,
  • Ryo Matsumura,
  • Yudai Kuroda and
  • Haruhiko Isawa
  • + 10 authors

19 December 2021

Jingmen tick virus (JMTV) and the related jingmenvirus-termed Alongshan virus are recognized as globally emerging human pathogenic tick-borne viruses. These viruses have been detected in various mammals and invertebrates, although their natural trans...

  • Article
  • Open Access
7 Citations
4,517 Views
21 Pages

Analysis of PV Subsidy Schemes, Installed Capacity and Their Electricity Generation in Japan

  • Kristina Knüpfer,
  • Samuel Matthew G. Dumlao,
  • Miguel Esteban,
  • Tomoya Shibayama and
  • Keiichi N. Ishihara

11 April 2021

Solar PV capacity growth in Japan has been facilitated by a number of government schemes that have been implemented since 1994. Publicly available capacity data are provided by a number of agencies and organisations at various resolutions and at diff...

  • Article
  • Open Access
9 Citations
4,229 Views
14 Pages

Yield Spread and Economic Policy Uncertainty: Evidence from Japan

  • Mei-Chih Wang,
  • Pao-Lan Kuo,
  • Chan-Sheng Chen,
  • Chien-Liang Chiu and
  • Tsangyao Chang

25 May 2020

In this paper, we adopt the nonlinear autoregressive distributed lags (NARDL) model extended by Shin et al. (2014) to investigate the relationship between the treasury yield spread and economic policy uncertainty (EPU) in Japan. This model helps us t...

  • Article
  • Open Access
227 Citations
19,078 Views
8 Pages

Willingness to Receive COVID-19 Vaccination in Japan

  • Takeshi Yoda and
  • Hironobu Katsuyama

14 January 2021

In the wake of the COVID-19 pandemic, vaccines are being developed by many countries for the safety of their population. However, people of various nations have revealed hesitancy towards being vaccinated, citing reasons such as side effects, safety,...

  • Article
  • Open Access
15 Citations
3,775 Views
14 Pages

14 June 2018

Controlling the rapid growth of residential energy demand and enhancing energy efficiency are key policy issues in Japan. Thus, this study aims to estimate a residential energy demand function by conducting a stochastic frontier analysis and analyze...

  • Article
  • Open Access
44 Citations
13,045 Views
13 Pages

Trends in Suicide Mortality by Method from 1979 to 2016 in Japan

  • Bibha Dhungel,
  • Maaya Kita Sugai and
  • Stuart Gilmour

Suicide is a major public health concern in Japan. This study aimed to characterize the trends in suicide mortality in Japan by method since 1979. Using data from the Japan vital registration system, we calculated age-standardized rates of suicide mo...

  • Article
  • Open Access
2 Citations
4,299 Views
19 Pages

18 April 2025

E-methane is considered the most important way to decarbonize the natural gas system in Japan. The advantage of e-methane is that it can use existing natural gas infrastructure and end-use facilities. There is a potential for China to produce e-metha...

  • Article
  • Open Access
22 Citations
6,580 Views
15 Pages

Financial Literacy and Exercise Behavior: Evidence from Japan

  • Shunsuke Ono,
  • Pattaphol Yuktadatta,
  • Takafumi Taniguchi,
  • Tomoe Iitsuka,
  • Masafumi Noguchi,
  • Sawa Tanaka,
  • Haruka Ito,
  • Kousei Nakamura,
  • Nanako Yasuhara and
  • Yoshihiko Kadoya
  • + 3 authors

9 April 2021

Lack of exercise, which increases the risk of many serious physical and mental illness, has been a common health issue in Japan. Recent studies confirm that financial literacy discourages irrational behavior like gambling and smoking. We therefore in...

  • Review
  • Open Access
10 Citations
8,271 Views
14 Pages

2 February 2022

River basins in Madagascar are prone to water scarcity and conflicts of use, which are projected to worsen due to climate change. Therefore, effective integrated water resources management (IWRM) is key. This review examines the current condition of...

  • Article
  • Open Access
7 Citations
4,938 Views
18 Pages

Acidification and Deoxygenation of the Northwestern Japan/East Sea

  • Pavel Tishchenko,
  • Vyacheslav Lobanov,
  • Dmitry Kaplunenko,
  • Sergey Sagalaev and
  • Petr Tishchenko

1 September 2021

Seasonal hypoxia in the bottom waters of the Peter the Great Bay (PGB) of the Japan/East Sea (JES) occurs in summer. Using the empirical relationship between dissolved oxygen (DO) and pH obtained for hypoxic conditions and available historical DO dat...

  • Article
  • Open Access
14 Citations
9,618 Views
26 Pages

21 December 2021

The circular economy (CE) is about a system-level change towards sustainability, and it aims at keeping products, components, and materials at their highest utility and value at all times, covering both technical and biological cycles. This study aim...

  • Article
  • Open Access
13 Citations
3,297 Views
11 Pages

Relationship between the Mediterranean Diet Score in Pregnancy and the Incidence of Asthma at 4 Years of Age: The Japan Environment and Children’s Study

  • Kaita Nakano,
  • Shohei Kuraoka,
  • Masako Oda,
  • Takashi Ohba,
  • Hiroshi Mitsubuchi,
  • Kimitoshi Nakamura,
  • Takahiko Katoh and
  • the Japan Environment and Children’s Study (JECS) Group

5 April 2023

Several scoring methods for the Mediterranean diet, which is considered as a healthy diet, are available, but studies that have compared more than one of these scores are rare. In addition, the applicability of Mediterranean diet scoring has not been...

  • Article
  • Open Access
11 Citations
3,492 Views
9 Pages

Preterm Deliveries in Women with Uterine Myomas: The Japan Environment and Children’s Study

  • Tsuyoshi Murata,
  • Hyo Kyozuka,
  • Yuta Endo,
  • Toma Fukuda,
  • Shun Yasuda,
  • Akiko Yamaguchi,
  • Akiko Sato,
  • Yuka Ogata,
  • Kosei Shinoki and
  • The Japan Environment Children’s Study (JECS) Group
  • + 5 authors

This study aimed to clarify the association between uterine myomas and preterm birth (PTB), preterm premature rupture of membranes (pPROM), and intrauterine infection (II). The study was based on data from the Japan Environment and Children’s Study,...

  • Review
  • Open Access
123 Citations
24,466 Views
14 Pages

The circular economy (CE) concept is gaining traction as a sustainable strategy for reducing waste and enhancing resource efficiency. This concept has been adopted in some countries such as Denmark, Netherlands, Scotland, Sweden, Japan, China, and Ge...

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