━━ Objective. Mesothelioma patients can enjoy peace of mind if they apply early for Industrial Accident Compensation Insurance System. However, physicians bear a heavy burden in the application process, and the consultation and support department is expected to play a part in this process. Therefore, we decided to clarify the current status and issues of consultation and support department in application for Industrial Accident Compensation Insurance System. Study Design. A questionnaire survey of patients was conducted, and a stepwise regression analysis was performed with application (certification) for Industrial Accident Compensation Insurance System as the dependent variable and three items of "response of the consultation and support department" and five items of "reasons for application for Industrial Accident Compensation Insurance System" as independent variables. Results. Patients who received information on asbestos exposure from the consultation and support department showed an increased tendency to apply for Industrial Accident Compensation Insurance System (b= 0.42, t[22]=1. 971, p=0.061, β=0.387). In addition to the patientsʼ own memories of asbestos exposure, the advice of medical institutions and the patient groups were significant factors in their reasons for choosing to apply for Industrial Accident Compensation Insurance System (b=1.47, t[18]=2.941, p=0.009, β=0.65). Conclusion. It is important for the medical departments of doctors and nurses, the phase consultation and support department, and the patient groups to cooperate with each other when hearing about asbestos exposure and applying for Industrial Accident Compensation Insurance System and the Asbestos Health Damage Relief System.

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This paper presents a flying capacitor linear amplifier (FCLA) without p-channel MOSFETs. The FCLA is an advanced topology for the conventional class-B linear amplifier to enhance the conversion efficiency. It maintains multiple voltages by flying capacitors in the circuit and reduces the linear operation losses generated in the MOSFETs as the number of the series connected MOSFETs increases. As the result, the FCLA with a high number of series devices can achieve a noiseless and no-harmonic output voltage maintaining high efficiency. The conventional FCLA typically utilizes complementary operation between n-channel and p-channel MOSFETs. However, p-channel MOSFETs have worse characteristics than those of n-channel MOSFETs in general. It causes a limitation of the efficiency improvement of the whole circuit. In particular, when the number of series devices increases, the total series on-state resistance of the current path increases more by that of the p-channel MOSFETs. Therefore, it is desirable to use only n-channel MOSFETs for all the power devices. In this study, a circuit configuration of the FCLA using individual linear gate circuits for each MOSFET. It does not only achieve capacitor voltage balance, but also makes it possible to use only n-channel MOSFETs. It is verified that the proposed circuit configuration with only using n-channel MOSFETs realizes higher efficiency than that of the conventional FCLA.

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