Act on the Protection of Personal Information was enforced in April 2005, in Japan. It aims to support and promote the use of ICT by protecting personal information that is collected, used or disclosed in certain circumstances. Its effect, however, seems to be still unsatisfactory because the number of entities which contravene the Act has not decreased even after its enforcement.This paper distinguishes four categories of the accidents. Most of them can be chalked up to carelessness of the entities or an inside job although computer hacking is still regarded as a major thread. Security technology is effective but not perfect to prevent illegal access from happening because it is almost useless to protect personal information from authorized but malicious use or access from inside. In addition, cost-effectiveness mut be considered when an entity takes measures of personal information protection. Thus, this paper proposes a tracing and recording system of computer network access as an efficient post-accident tool for tracking back both authorized and unauthorized access.

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Accelerometers have been used for several decades to monitor body movement in subjects, and technological advances have provided devices that are suitable to monitor life activities of free-living subjects over prolonged time span. In this study, we compared the possibility of Bio Balance Chip (BBC), a newly developed micro-sized biological data (body movement, posture and skin temperature) monitoring logger, as an automatic sleep-wake identification tool and a life activity monitor, with Actigraph the most widely used device in these field.BBC is at the same level compared to Actigraph in terms of the estimation of the starting and ending time of sleep. Furthermore, since it can detect turnovers and abrupt waking and body movements during sleep, and it helps to understand the subject's daily life activities more specifically, BBC is suggested to be superior to Actigraph.Since BBC's smallness allows measurements non-conscious to subjects, its application to the cure and care of patients such as with dementia etc. is highly expected.

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The privacy protection law was enforced in April, 2005. And the guideline was shown in first in a roll in the Ministry of Health, Labour and Welfare simultaneously with the privacy protection law. On the other hand, the hospital which considers action which can be taken as the overreaction to the privacy protection law was also seen in some hospitals in Japan. Then, the example of the Imai hospital is introduced. In the Imai hospital, it has managed as information which must classify information as patient information, health information, hospital management information, and staff information, and must be managed not only in the object of the privacy protection law. Furthermore, the measure to the privacy protection law in a hospital performed the notice of a privacy policy in Imai hospital, distribution for the purpose of personal information use, the study about the privay protection law for all members of staff, and the secrecy agreement. And I think three points of essence, one is clarification of a protection-of-personal-information plan and common knowledge to a patient or the personnel, two is the basic role, "safety" of hospital and construction of the system of information security, three is we decide how to use and provide patient information from cooperation medical institutions. Although this law was enforced and half a year passed, the trouble has not occurred.

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Presentation with a LCD projector has become more popular at scientific conferences. Microsoft PowerPoint is exclusively used in most cases. The author variously examined required conditions for presentation software used in scientific conferences, resulted that PowerPoint was found as rather inappropriate to the conferences. As an alternative, presentation with a PDF file(PDF Presentation) is proposed in this paper, and showed a actual sample and remarks. Use of PDF Presentation gives a safe feeling to conference staffs because of much lower cost and risk thanPowerPoint, and reduces speakers' burden of slides preparation.

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