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This study aims to focus on asset management of large‐scale information systems supporting infrastructures and especially seeks to address a methodology of their statistical deterioration prediction based on their historical inspection data. Information systems are composed of many devices. Deterioration process i.e. wear‐out failure generation process of those devices is formulated by a Weibull hazard model. Furthermore, in order to consider the heterogeneity of the hazard rate of each device, the random proportional Weibull hazard model, which expresses the heterogeneity of the hazard rate as random variables, is to be proposed.

Large‐scale information systems comprise many components, and different types of components might have different hazard rates. Therefore, when analyzing faults of information systems that comprise various types of devices and components, it is important to consider the heterogeneity of the hazard rates that exist between the different types of components. In this study, with this in consideration, the random proportional Weibull hazard model, whose heterogeneity of hazard rates is subject to a gamma distribution, is formulated and a methodology is proposed which estimates the failure rate of various components comprising an information system.

Through a case study using a traffic control system for expressways, the validity of the proposed model is empirically verified. Concretely, as for HDD, the service life at which the survival probability is 50 percent is estimated as 158 months. However, even for the same HDD, use environment differs according to usage. Actually, among the three different usages (PC, server, others), failures happen earliest in the case of PCs, which have the highest heterogeneity parameter and a survival probability of 50 percent after 135 months of usage. On the other hand, as for others, its survival probability is 50 percent at 303 months.

To operationally express the heterogeneity of failure rates, the Weibull hazard model is employed as a base, and a random proportional Weibull hazard model expressing the proportional heterogeneity of hazard rates with a standard gamma distribution is formulated. By estimating the parameter of the standard proportional Weibull hazard function and the parameter of the probability distribution that expresses the heterogeneity of the proportionality constant between the types, the random proportional Weibull hazard model can easily express the heterogeneity of the hazard rates between types and components.

In this paper, we discussed relations between drivers' cognition and the dynamics of traffic conditions. When we take into account drivers' cognition, many types of psychological impedance to behavioral change could be accounted for, including cognitive conservatism and habitual decision making. Based on psychological theories with respect to these impedance to behavioral change, we elucidated the process of changes in traffic conditions that might be induced by changes in road-network structure. As a result of the discussion, we concluded that traffic conditions are unlikely change as much as predicted by theories that assume a simple, and sometimes unique, relation between a traffic condition and a road-network structure, e.g., theories that assume user equilibrium.

The purpose of this paper is to critically examine the concept of multi-stakeholder partnerships in relation to the United Nations' sustainable development goals and propose a renewed multi-stakeholder partnerships framework that enables the implementation of the sustainable development goals.

This paper employs an integrative review methodology to assess, critique and synthesize the extant literature on the multi-stakeholder partnerships and sustainable development goals.

We propose a conceptual framework of multi-stakeholder partnerships to support the sustainable development goals implementation. Thus, this paper contributes to the conceptual understanding of the multi-stakeholder partnerships mechanism that enhances the sustainable development goals implementation.

We propose a conceptual framework of multi-stakeholder partnerships to support the sustainable development goals implementation. Thus, this paper contributes to the conceptual understanding of the multi-stakeholder partnerships mechanism that enhances the sustainable development goals implementation.

We contend that this is one of the few early papers that contributes to the conceptual development of a collaborative multi-stakeholder partnerships paradigm by which such partnerships are formed and institutionalized among multiple interacting sectors to achieve the sustainable development goals.

This study aims to establish a Japanese-style healthcare program customized for Japan and Asia under ISO 9001: 2008 (ISO: International Organization for Standardization) to improve problem areas and to inspect the effectiveness of the program. Furthermore, the authors wanted to create this health program using the ISO widely available in Asian countries and make an international contribution.

The authors implemented a 6- to 10-month health program in Minowa Town, Matsumoto City and Nagano City in Japan. This study assessed findings from pedometric, anthropometric and blood pressure measurements and physical fitness, blood chemistry and brain function tests.

The comparisons were made by examining the interaction effects between groups of participants. Groups from three regions in Japan showed significant differences on the physical fitness tests; regarding the 10-meter obstacle walk, the results of the Minowa participants showed the greatest improvement and the Matsumoto participants showed the second greatest improvement. In the six-min walk, the time of the Minowa participants significantly improved.

This health education program, which has been conducted by the Japanese authors since 1998, measures anthropometry, brain function and physical fitness and performs blood tests before and after the program and it measures energy consumption with a pedometer during the program. With the aim of improving exercise via encouragement from friends and a sense of community with fellow participants, participants learn together with hands-on training in tai chi and aerobics about the importance of ongoing exercise and proper nutrition. This health education met the Health Education ISO in 2014.

Since 2010, Nagano Prefecture, including Minowa Town, Matsumoto City and Nagano City, where our study was carried out, has been the area with the highest life expectancy rates in Japan.

The authors want to make this health promotion through ISO widely available in Asian countries and an international contribution.

This study aimed to appropriately establish a Japanese-style healthcare program under the ISO 9001:2008 to improve problem areas and inspect its effectiveness.

This paper aims to propose a simple method for stabilizing silica-coated silver iodide (AgI/SiO₂) core-shell particles, of which a colloid solution functions as an X-ray contrast agent.

A colloid solution of AgI nanoparticles was prepared by mixing silver perchlorate and potassium iodide in water. The AgI/SiO₂ nanoparticles were fabricated by a sol-gel method using NaOH, H₂O and tetraethylorthosilicate in ethanol in the presence of AgI nanoparticles surface-modified with 3-mercaptopropyltrimethoxysilane.

The silica shells of AgI/SiO₂ particles were dissolved near the AgI nanoparticle surface, when they were washed by a process composed of centrifugation, removal of supernatant with decantation, addition of water as a washing solution and a shake with a vortex mixer. In contrast, the shells were not damaged by using ethanol as the washing solution, i.e. ethanol-washing. An X-ray photoelectron spectroscopy spectrum of the silica was changed after the ethanol-washing, which indicated that the ethanol-washing had an effect on the chemical bonds in silica. The effect also acted on the silica shells of AgI/SiO₂ particles, which did not damage the core-shell structure, i.e. controlled the dissolution of shell.

The paper demonstrates that the ethanol-washing is quite useful for stabilizing the core-shell structure composed of the silica shells.

Human beings spend their daily lives within the range of the atmospheric boundary layer, where airflow is affected by friction from Earth's surface. The airflow in this area is generally called wind. Strong wind occasionally causes severe damage to infrastructures and people because of its aerodynamic effects, but even weak and moderate winds can have serious environmental impacts on human society such as those seen with air-pollution problems and thermal effects.

This chapter reports a study that investigates the link between rural small firms’ social networks and their market diversification strategies in the context of the Internet.

Telephone interviews were conducted with a random sample of 142 Scottish small rural and urban firm owners in May 2012. The purpose of the telephone interviews was to understand how Internet usage impacted on the social networks and market diversification experiences of small rural firms. Analysis of the categorical data was performed using a variety of established methods.

Internet usage for many small Scottish rural firms was facilitating both their market reach and social networks. In addition, small rural firms’ most important social network contacts are highly correlated to their origin of sales, and this can be either locally or extra-locally based.

A positive relationship between Internet usage, social networks and market reach expansion offers support for further developing and improving the Internet infrastructure of rural communities.

Internet usage emerges as a critical tool for augmenting the social networks of Scottish rural small firms, which in turn helps to extend their market reach activities.

This study examines the impact of work-to-family conflict (WFC) on depression for employed husbands and wives in Japan, the moderating role of own psychological family involvement in the relationship between WFC and depression, and the moderating role of spouses’ family and job involvement in the relationship between WFC and depression.

We use a matched sample of Japanese employed husbands and wives to examine the relationships between inter-spousal dynamics about work–family conflict and psychological well-being.

We found that (1) the effect of WFC on depression was larger for wives, (2) husbands’ and wives’ own psychological family involvement did not moderate the relationship between WFC and their depression, and (3) spousal family and job involvement operated as a moderator only for husbands. While WFC reduced husbands’ depression when their wives were highly involved in their jobs psychologically and behaviorally, WFC increased husbands’ depression when their wives were highly involved in family at both psychological and behavioral levels.

Employers need to take into account the importance of looking simultaneously at the ways employed husbands and wives work when trying to understand how workplace conditions may be changed to ameliorate psychological well-being for spouses.

This study suggests that an experience of conflict between work and family is likely to deteriorate the psychological well-being for employed husbands and wives in non-Western contexts like Japan. Furthermore, spousal involvements in family and work domains are likely to play moderating roles in the relationship between WFC and depression.