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Microplastics (MPs) are non-biodegradable substances that can sustain our environment for up to a century. What is more worrying is the incapability of modern technologies to annihilate MPs from om environment. One ramification of MPs is their impact on every kind of life form on this planet, which has been discussed ahead; that is why these substances are surfacing in everyday discussions of scholars and researchers. This paper discusses the overview of the global occurrence, abundance, analysis, and remediation techniques of MPs in the environment. This paper primarily reviews the event and abundance of MPs in coastal sediments and agricultural soil of three major Asian countries, India, China, and Japan. A significant concentration of MPs has been recorded from these countries, which affirms its strong presence and subsequent environmental impacts. Concentrations such as 73,100 MPs/kg in Indian coastal sediments and 42,960 particles/kg in the agricultural soil of China is a solid testimony to prove their massive outbreak in our environment and require urgent attention towards this issue. Conclusions show that human activities, rivers, and plastic mulching on agricultural fields have majorly acted as carriers of MPs towards coastal and terrestrial soil and sediments. Later, based on recorded concentrations and gaps, future research studies are recommended in the concerned domain; a dearth of studies on MPs influencing Indian agricultural soil make a whole sector and its consumer vulnerable to the adverse effects of this emerging contaminant. [Display omitted] • Film & fibre shaped microplastics (MPs) are more abundant in India, China and Japan. • Plastic mulching is the root cause of major MPs pollution in soil and sediment. • Estuarian soil/sediment are more prone to MPs pollution than terrestrial and coastal. • FT-IR is highly used for MPs identification; mass spectrometry & microscopy are least. • MPs work as a vector for metals, PPCPs, surfactants and antibiotic resistance genes (ARGs). [ABSTRACT FROM AUTHOR]

Methamphetamine (MA) abuse continues in East Asia and shows an increasing trend among youths in South Korea, Japan, and China. Although the negative effects of MA abuse on youth are considered as significant problems, few studies have been conducted on the topic in these countries. This paper focuses on the effects of MA on the human body and current MA abuse among youths in South Korea, Japan, and China. To investigate the negative effects of MA on the human body, we searched the keywords "MA," "human," and "effect" for studies published from 2013 to 2017. MA activates the neurotransmitter system and the central nervous system, and when used at high dosage or for long term, MA can cause severe neurotoxicity and cardiovascular problems. Online networks contribute to MA abuse by sharing methods for preparing synthetic MA. Despite efforts to reduce MA abuse, social crimes associated with its abuse continue and numbers of illegal MA users are increasing steadily in Korea, Japan, and China. In young users, diverse factors associated with drug addiction, such as curiosity and peer effect, lead to MA abuse and its attendant personal and social problems. [ABSTRACT FROM AUTHOR]

In recent years, agents for sludge dewatering have received extensive attention both from fundamental and applied research. Papers in the field of sludge dewatering agents are mainly concerned with the synthesis and characterization of agents as well as their interaction mechanisms with sludge. On the other hand, patents, which are characteristically different than papers, involve the invention and application of sludge dewatering agents. However, these researches rarely use bibliometric technology and social network analysis to provide a better understanding of the fundamental and applied researches in this specific field. This paper presents a quantitative analysis based on a total of 338 (out of 1126) core papers from Web of Science Expanded and 961 (out of 4678) core patents from Derwent Innovation to provide valuable suggestions that may promote further development in the field of sludge dewatering agents. The core point of this paper is to explore the relationship between fundamental research and applied research in the field of sludge dewatering agents through citation, characteristics of different countries/regions, collaborations of research area and organizations. Our results underline that highly cited papers support applied research by citating information among them. With respect to countries, Japan paid more attention to applied research, whereas the USA performed well both in fundamental research and applied research. China has high quantity in both papers and patents in agents for sludge dewatering. However, the papers per capita of population of China is low and the pattern still needs to optimized to improve the quality in this field. The unique development path revealed that developing countries still have a long way to go in terms of technology innovation. In addition, collaboration network of research areas has shown strong cooperation among applied researches, however they lack connection with fundamental sciences, such as physics or chemistry. Furthermore, collaboration network of organizations disclosed the necessity for upstream enterprises (agent producers) to work closely with downstream enterprises (agent users) in the sludge dewatering. Image 1 • A bibliometric analysis on agents for sludge dewatering was conducted. • Highly cited papers support applied research. • Japan is application-oriented and USA performed well in both fundamental research and applied research. • Developing countries still need to optimize their pattern or promote technology innovation. • Interdisciplinary collaboration covering the lifecycle of industrial chain is needed. [ABSTRACT FROM AUTHOR]

Building sector accounts for a large percentage of the total national energy consumption in most of the countries, thus it is critical to formulate and implement appropriate energy saving policies in the building sector. This paper focuses on energy saving policies in the building sector by conducting a comparative study between Japan and China. The exiting Building Energy Saving (BES) policies, actual effectiveness of policy implementation and obstacles to the effective policy implementation are compared in sequence. Related policies are categorized into four groups: control and regulatory instruments; economic/market-based instruments; fiscal instruments and information and voluntary actions. Policy effect analysis identifies that BES policies have promoted building energy saving in both Japan and China. Obstacles comparison reveals that Japan and China shared many obstacles including high transaction costs and lack of applicable methodology. Compared with Japan, China is suffering more obstacles such as inefficient enforcement, insufficient levels of information and awareness and immature financial regulation system. Based on the previous findings, common suggestions for overcoming these obstacles of BES policies in Japan and China are presented, such as the accurate methods of baseline identification and emission accountings, innovative incentives, and more capacity building activities. Distinct suggestions for Japan and China are also added by considering their own situations so that both countries can further improve their BES policies. [ABSTRACT FROM AUTHOR]

Improvement of recovery rates is crucial for the supply chain management of waste cooking oil-to-biofuel conversion. This paper constructs a dynamic game model between biofuel enterprises and recyclers to compare the recycling modes and recycling rate decisions of waste cooking oil-to-biofuel conversion in China and Japan. Results demonstrate that: (1) the recovery rate of Chinese mode with recyclers as price leader is not necessarily lower than that of Japanese mode theoretically, indicating that the collection-storage-transportation integrated mode in several cities led by Chinese government may not be the optimal choice. (2) The subsidies for recyclers have insignificant impact on recovery rate, while the subsidies for biofuel enterprises can significantly improve the recovery rate. (3) Decreasing difficulty coefficient and expanding the market size can greatly improve the recovery rate. Therefore, reforming the beneficiary of subsidies, improving the recycling infrastructure, implementing strict technical and administrative control and creative sales policy of biofuel finished products may benefit the recovery rate in China. [ABSTRACT FROM AUTHOR]

With the frequent coastal activities of human beings, tens of thousands of tons of floating marine plastics pose a serious threat to marine ecosystems and human survival. This paper studies the feasibility of regional marine plastic garbage management, taking the Northwest Pacific as the research object. According to the Cobb-Douglas utility function of the costs and benefits of plastic processing in China, Japan and South Korea, the Shapley value method was used to analyze it. The study found that the data were substituted into the Shapley value model of cooperative game for calculation, and the results showed that any country joining the triple alliance U would create greater benefits, and obtain higher benefits than the sub alliance. It is a triple win situation for China, Japan and the South Korea to jointly manage marine plastic in the Northwest Pacific. The results of the model confirm that the three countries are willing to maintain long-term cooperation on marine plastic governance, this method can be used to solve the trans-national marine governance innovatively and promote regional ocean cooperation governance. At the same time, by comparing the Northwest Pacific Plan with other action plans, China, Japan and South Korea should abandon political controversy, seeking common ground while putting aside differences, to cooperate fully to curb the growing trend of plastic waste problem in the Northwest Pacific, and contribute to the sustainable development of regional marine. [ABSTRACT FROM AUTHOR]

China's economic growth has been progressively moving towards reducing carbon intensity. In parallel, Japan has long been regarded as the pioneer of energy efficiency worldwide. Why have these two economic giants had such different experiences of carbon intensity in the past decades? A closer examination in both countries may hold vital clues, which are still very unclear. This paper compares the patterns of carbon intensity between China and Japan, in which we propose a bilateral-country decomposition framework by combining production-theoretical decomposition analysis and index decomposition analysis. The decomposition highlights the effects of emission factor, energy structure, sectoral structure, substitution among labor-energy and capital-energy, and technological progress. The results show that the energy structure, sectoral structure, and capital-energy substitution are the main drivers behind that China is much higher carbon intensity than Japan, accounting for 26%, 25%, and 38%, respectively. Yet, these effects also narrowed the carbon intensity gap between China and Japan over the years. Furthermore, the labor-energy substitution effect has generally decreased the carbon intensity gap. The technological effect has a minor impact on the carbon intensity gap per year, while it plays a dominant role in enlarging the carbon intensity gap over time. • An improved approach is proposed to decompose driving forces of carbon intensity. • The approach is applied to carbon intensity gap between China and Japan. • Potential energy intensity of each sector is uncovered by input substitution. • Enabling policymakers in developing countries to reduce carbon intensity. [ABSTRACT FROM AUTHOR]

Abstract: This paper examines the impact of charter services on international tourism in Japan. Particularly, charter flows between Japan and China are analyzed to examine their role in Sino-Japanese tourism. The results show that charters have contributed to geographic spread of tourism destinations in China, and that they meet dispersed and seasonal travel demand from Japanese regions. Scheduled services have not been able to entirely replace charter services, but cause uneven patterns in charter services. [Copyright &y& Elsevier]

Abstract: In the mainland of China, the constraints of environments, resources, especially energy resources, has increasingly become the bottleneck of economic development after reform policy for more than thirty years. In this paper, we illustrate the basic structure of energy conservation and emission reduction from historic, institutional and comparative analysis based on Japan''s case as an example of energy conservation. Our investigation shows the evolution of Japan''s energy conservation policies from a view of energy security to the view of environment protection and low carbon economy. We also analyze the tools that Japan adopted to remove energy conservation barriers. [Copyright &y& Elsevier]

The paper highlights the findings of a study from selected ecosystems in Indonesia, China and Japan. The study sought to trace changes to productive resources of ecosystems over a period of 50years; and trace the dependence of well-being of local populations on the ecosystems for the same time period. Data was collected from land-use maps, records and participatory rapid/rural appraisal (PRA) surveys in multistakeholder forums. To illustrate the changes, an indicator-based assessment framework was developed that integrates data from biophysical and socio-economic parameters. We observed that the approach (1) provides a better representation of the preferences of different stakeholders of ecosystem services, (2) fosters validation of data between the different stakeholders and (3) enables a communication and planning process among the stakeholders to sustainably utilize and manage their ecosystems. The use of spatial maps validates the relevance and utility of diachronic observations of communities and other stakeholders directly dependent on ecosystems. At the same time, they can be used to strengthen local planning processes for the development of services in the ecosystem. Such research thereby also acts as a catalyst to a social process of coordinated action to address local issues of global relevance. [Copyright &y& Elsevier]

Abstract: Since Kyoto Protocol is going to be expired in 2012, all the develop ed and developing countries are very concerned about the future of clean development mechanism. By using the game theory the paper analyzes the market of clean development mechanism, especially the projects of CDM between the U.S., EU, Japan and China. Based on this, the prospects of Chinese CDM market are provided. [Copyright &y& Elsevier]

This paper aims to provide a comparative study of growing strategies of non-profit organisations between Japan and China. The concept of the non-profit organisation (in China, 'non-governmental organisation') was imported into the two societies around the same period; however, many differences emerged between their respective processes of development. I will describe those differences to feel for an answer to the following question: How are non-profit organisations developing uniquely in East Asian societies? [ABSTRACT FROM AUTHOR]

Abstract: The technology of hot metal pretreatment had tremendous improvements in past decades and was widely used by the overwhelming majority of steelworks in Japan. While, since the first hot metal pretreatment station was established in Taiyuan Iron and Steel Co., Ltd in the later period of 1980s, this process began to be applied in domestic steel plants. And now 30 years have passed, the desilionization and dephosphorization process are still rarely seldom used in China except desulphurization process in most carbon steel plants. So in this paper, the metallurgical principles and effects of hot metal desiliconization were analyzed in great details. Meanwhile, the optimum silicon content of hot metal between iron-making and steelmaking process was summarized and calculated. The necessity of hot metal desiliconizaiton was discussed for the iron and steel companies in China. [Copyright &y& Elsevier]

Abstract: China''s demand for energy has grown to fuel its rapidly expanding industrial, commercial and consumer sectors. At the same time, China has become the second largest consumer of petroleum products having surpassed Japan for the first time in 2003. The environmental consequences of a continuation of these trends will have global implications. Government policies and consumers have become more environmentally aware, but the ability of governments to formulate policies has been hindered by the lack of data on inter-factor and inter-fuel substitution possibilities. In this paper Allen partial elasticities of factor and energy substitution, and price elasticities of energy demand are calculated for China''s industrial economy using a two-stage translog cost function approach for the period 1995–2004. The results suggest that energy is substitutable with both capital and labor. Coal is significantly substitutable with electricity and slightly complementary with oil, while oil and electricity are slightly substitutable. China''s energy intensity is increasing during the study period and the major driver appears to be due to the increased use of energy-intensive technology. [Copyright &y& Elsevier]

• The global coal import competition network is tight. • Japan and China have made coal competition on the Asian-Pacific region more drastic. • The competition intensity of European importers is becoming weaker. • Asian countries should make out strategies to decrease the carbon dioxide emission. Until today, the volume and trade relationships of the global coal trade still follow an increasing trend, which adversely affects both the environment and coal supply security. However, whether the possibility exists to change this trend to a decrease in global coal trade competition remains unknown. If this were possible, the volume and relationships of coal trade would gradually decrease. To address this question, this paper applies the complex network model and comprehensively explores the dynamic competitive relationship and intensity among the global coal import trade. At the global level, the results indicate that more competitive relationships regarding coal imports emerge, and the coal import competition network has changed from a core periphery structure to a reticular structure. In addition, the competitive intensity of the global coal trade continues to rise. At the regional level, the role of the Asian-Pacific region, led by Japan and China, in the evolution of this competitive pattern is increasingly becoming prominent. In contrast, the competitive intensity of European importers has declined since 2007. At the national level, Japan bore the greatest competitive pressure among all coal-importing countries from 1998 to 2007, when it was replaced by China. The intensity of competition in China has increased fiercely, from seventh in 2009 to first in 2016. Finally, based on the results, meaningful policy implications are presented. For example, it is recommended that the result of record-high levels of coal competition in Asia should receive more attention, and a more appropriate use of coal should be developed. [ABSTRACT FROM AUTHOR]

• Provide a state-of-the-art review of buckling restrained braces (BRBs). • Discuss the development and classifications of BRBs. • Outline the advantages and limitations of the various types of BRBs. • Explore some innovative applications of BRBs in earthquake-resistant design of buildings. As an earthquake-resistant structural element, buckling-restrained brace (BRB) not only adds strength and stiffness but provides excellent energy absorption capability to a structure. Since its inception in the late 1980s, BRB has been the subject of research by many researchers. Different types of BRBs have been proposed for use to address miscellaneous structural requirements by researchers and practitioners primarily in Japan, U.S. and China. Research is continuing toward the development of BRBs that are more efficient, compact, lightweight, less expensive to fabricate and easier to install. This paper summarizes the development of BRBs in the past few decades including their history, classifications, applications and scientific research. A discussion on the advantages offered by different types of BRBs and some insights into the future prospects for BRBs are also given. [ABSTRACT FROM AUTHOR]

Polybrominated diphenyl ethers (PBDEs) have been extensively used as flame retardants in consumer goods. Sufficient evidence shows that PBDEs have been rapidly accumulating in the environment worldwide. In Asia, deca-bromodiphenyl ether has been produced and used in large quantities, while penta-BDE has largely ceased in the mid-1990s. This paper summarizes and critically reviews the status of PBDE pollution in East Asia, with emphases on the comparisons with Europe and North America and the interpretation of the differences. In general, the concentrations of PBDEs in atmosphere, sludge, human and biological samples of East Asia are comparable to or lower than those in Europe and North America. However, in the sediments of waters near densely populated and heavily industrialized areas, PBDE levels are among the highest ever reported in the literature. In Japan and China, concentrations of PBDEs in sediment cores showed an increasing trend for the past 20–30 years. Also, PBDEs levels in human breast milk in Japan increased about 10-fold in the past 20 years. The presence of PBDEs in fur seal has increased about 150-fold in 1994 than that in 1972. Regional and inter-continental transport cannot be confirmed due to insufficient information. However, the detection of a number of PBDE congeners in a pristine lake on the Qinghai–Tibet Plateau may be an evidence of their long-range transport. [Copyright &y& Elsevier]

In midsummer (July-August) of 2017, the high temperature (HT) frequency in China breaks the record since 1951. For each HT threshold from 35 °C to 40 °C, the frequency is beyond the normal by 2.58–3.46 standard deviations. Specifically, the HT events in southern China make major contributions to the new record, and they demonstrate obvious temporal variations. The strongest episode in southern China appears in mid-to-late July and lasts for nearly 20 days. The westward extension and intensification of the western Pacific subtropical high (WPSH) is usually considered as the leading factor of the HT in southern China. However, the diagnostic analysis in this paper shows that the 2017 HT event does not correspond to the intensification of the whole WPSH but to its western part, and there is a cyclonic circulation anomaly over the western Pacific warm pool, which is closely related to the southward extension of the middle-latitude trough over the east side of Japan. This circulation pattern is favorable for the southward retreat of the WPSH northern boundary over the warm pool, which results in the shape change and even the split of the high. Then the west part of the high is incapable of withdrawing eastward, and it dominates over the southern China steadily, leading to the persistent HT events. This conclusion is further confirmed by the statistical analysis both of the multi-year circulations and the typical HT extreme case in 2013, which could provide reference for the sub-seasonal prediction of HT in southern China. • China suffered the record-breaking extreme high temperature event in July-August 2017 since 1951. • Middle-latitude trough over the East of Japan was first found in causing a constant westward WPSH. • The leading influence of the trough could be considered in the forecast of HT event in southern China. [ABSTRACT FROM AUTHOR]

• In the aspect of anti rheumatism, the effect of A. japonica and A. coreana is closer to that of Atractylodis Rhizoma. • A. coreana and A. chinensis have better and similar therapeutic effects on rheumatoid arthritis. • A. japonica and A. lancea are more similar in the treatment of rheumatoid arthritis. • Rheumatoid arthritis causes changes in two metabolic pathways: primary bile acid biosynthesis and steroid hormone biosynthesis. Atractylodes DC. mainly includes Atractylodis Rhizoma and Atractylodis macrocephalae Rhizoma. According to Chinese Pharmacopoeia, Atractylodis Rhizoma is the rhizome of Atractylodes lancea (Thunb.) DC. (A. lancea) and Atractylodes chinensis (DC.) Koidz. (A. chinensis), while Atractylodis macrocephalae Rhizoma is the rhizome of Atractylodes macrocephala Koidz. (A. macrocephala). Although Atractylodes japonica Koidz. ex Kitam. (A. japonica) and Atractylodes coreana (Nakai) Kitam. (A. coreana) are not included in the Pharmacopoeia, they are often used as Atractylodis Rhizoma in northern China. But in Japan, A. japonica is used as Atractylodis macrocephalae Rhizoma. In order to compare the efficacy of A. japonica and A. coreana with that of Atractylodis Rhizoma and Atractylodis macrocephalae Rhizomain in Pharmacopoeia, this paper studies the anti rheumatism of the five medicinal species in Atractylodes DC., and provides the basis for the rational application of A. japonica and A. coreana. With this purpose, the rheumatoid model of rats was established by Freund's complete adjuvant. Then, Enzyme-linked immunosorbent assay (ELISA) was used to determine the contents of interleukin-6 (IL-6), tumor necrosis factor-α (TNF - α), arthritis factor (RF), anti cyclic citrullinated peptide (anti-CCP), interleukin-1β (IL-1β), Nuclear factor-κB (NF - κB), interleukin-10 (IL-10) and Prostaglandin E2 (PGE2) in rats of each group. Ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) was used to analyze the plasma of each group. After that, multivariate statistical analysis method was used to analyze the data. The results showed that the five medicinal species in Atractylodes DC. can reduce the levels of IL-6, IL-1 β, PGE2 and NF - κB in the plasma of rheumatoid arthritis (RA) rats in varying degrees, among which the regulation of A. macrocephala is relatively weak. A. chinensis, A. lancea, A. coreana and A. japonica can significantly reduce the content of TNF - α, in which A. japonica and A. lancea have better and similar regulatory effects. A. chinensis and A. coreana can significantly reduce the content of RF in arthritis rats. A. coreana, A. lancea and A. japonica can significantly reduce the anti-CCP level, that is, the regulatory effect of A. coreana and A. chinensis is similar. The metabolic disorder of 11-deoxycortisol, taurocholate and other small molecules in the body of rats with RA directly affects the metabolic pathways of primary bile acid biosynthesis and steroid hormone biosynthesis, leading to the decline of immune function and other symptoms. Most of the metabolic pathways tend to be normal after oral administration of five medicinal species in Atractylodes DC. Among them, the regulating effect of A. coreana and A. chinensis is similar, while that of A. japonica and A. lancea are similar. A. macrocephala had little effect of intervention. [ABSTRACT FROM AUTHOR]

• Halocarbon emissions in the building sector is increasing. • Non-Annex parties become bigger emitter instead of Annex parties. • Building sector accounts for more than half of global HFCs emissions. • Data sufficiency is key barrier for policy making. • Building cooling demand increase will push further halocarbon emissions. Estimates of the non-CO 2 greenhouse gas (GHG) emissions contributed by the buildings sector are necessary to evaluate this sector's potential for climate change mitigation. As data is lacking on fluorinated gases (F-gases) and hydrofluorocarbon (HFC) emissions from the buildings sector, this study aimed to estimate these emissions. First, the share of total global GHG emissions represented by buildings-sector emissions was estimated. Then, the HFC emissions of the buildings sectors in several countries (USA, EU, Japan, and China) are compiled. Next, based on necessary assumptions, global buildings-sector HFC emissions were estimated. Finally, this paper discusses implications for policy-makers. [ABSTRACT FROM AUTHOR]

Currently, an increasing number of single-box multi-cell composite box-girders with corrugated steel webs (SBMC-CBGCSWs) have been built in China and Japan. However, the torsional stiffness of SBMC-CBGCSW is dramatically decreased due to the employment of thin corrugated steel webs (CSWs). Investigations of SBMC-CBGCSW under pure torsion are relatively limited, therefore, additional research is needed to investigated to guarantee the safety of such bridges. In this paper, an experimental study on four scaled specimens subjected to pure torsion is conducted to understand the effect of the number of cells and spacing of CSWs on the full torsional response of SBMC-CBGCSW. The failure mode, cracking patterns, and buckling patterns of specimens are presented, and a new shear strain relationship between CSWs obtained from experimental results is proposed to evaluate the contribution of inner CSWs to the torsional behavior of SBMC-CBGCSW. Then, finite element analysis (FEA) models are created to compare with experimental results, such as torque-twist curves, shear strains of CSWs and shear strains of concrete slabs. Finally, a parametric study is performed to examine the effect of geometric factors, such as the ratio of width to height, ratio of width to span length, ratio of width to thickness of slab, number of cells and spacing of CSWs, on such bridges under torsion. • Cracking and buckling patterns and failure modes of 4 scaled SBMC-CBGCSWs under pure torsion are presented. • Effects of number of cells and spacing of CSWs on full torsional response are examined. • Torque-twist curves and shear strains obtained from FEA agree well with that of test. • A new shear strain relationship between CSWs is proposed. • Parametric study is performed to clarify the effect of geometric factors and find optimum positions of CSWs. [ABSTRACT FROM AUTHOR]