Various data related to driving of older drivers were collected in this research to construct database, called Data Repository for Human Life-Driving Anatomy (Dahlia). The database includes visual functions, cognitive performance, driving aptitude tests, and questionnaires about driving attitudes and belief obtained from approximate 300 drivers. Further, naturalistic driving study has been conducted to collect driving behavior from some drivers. This paper describes concept of the database, details of data collection, case of the present applications, and prospects.

In Safety-1, safety is defined as having as few as possible negative outcomes, and in Safety-2, safety is defined as having as many success outcomes as possible. In this study, we aimed to experimentally verify the effectiveness of using Safety-1 mode and Safety-2 mode properly according to the situational variability, and to derive a quantitative indicator of the situational variability that should switch between both modes. The following was clarified from the result of the simulation experiment which assumed fire extinguishing activity. 1） The larger the situational variability, the more cases will be switched from Safety-1 mode to Safety-2 mode, but switching to the Safety-2 mode is a minority, as long as the situation does not change by more than 15 times the steady state. 2） The larger the situational variability, the more successful outcomes will be in the Safety-2 mode than in the Safety-1 mode, and an indication of better switching timing to achieve a successful outcome is that the magnitude of the situational variability 4-6 times relative to steady state.

An Act for the Realization of Work Style Reformation has been enforced in 2019. Municipalities also began to constrain long working hours. However, the current reformation of working style is giving staff new burdens that they cannot regard their work as positive. The purpose of this research is to clarify the causal relationship among organizational culture in municipalities, leadership of managerial positions, and job satisfaction, and to energize staff in municipalities. In order to clarify the characteristics of municipalities, we compared municipalities with large companies by means of Multiple Group Structural Equation Modeling. By statistical analysis of the questionnaire applied to more than 1,000 people, we revealed that （1） the closed aspect of organizational culture does not act as a disincentive to job satisfaction and （2） positive and collaborative aspects of organizational culture encourage the sense of worthiness and growth in municipalities rather than in large companies. It is therefore more effective, in the era of working style reformation, to encourage teamwork and other collaborative aspects of staff working for municipalities than to highlight a negative aspect of municipality, which is so-called bureaucracy, and try overcoming it.

The present study examined the effect of continuous use of a scented sanitary mask on nasal discomfort due to hay fever. Forty participants who suffer from hay fever wore a mint-scented mask or an unscented control mask for 6 h. Participants were periodically prompted to report their nasal discomfort through mobile devices. The results indicated that the scented mask reduced discomfort immediately upon application. However, the effect of the scent became saturated after 30 min of wear. Reactivating the scent produced no additional reduction in the discomfort level. These results suggest that the effect of the sanitary mask’s scent was volatile and limited to the first 30 min of application.