Tumor size is an independent and significant prognostic factor and important for planning of surgical treatment. Although lobectomy should be chosen for patients with a tumor of greater than 30 mm in diameter, further investigation is required for tumors of 21 to 30 mm in diameter. Segmentectomy should, as a lesser anatomic resection, be distinguished from wedge resection and might be acceptable for patients with a tumor of 20 mm or less in diameter without nodal involvement.

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This study showed that the physical fitness of amputees was clearly lower than that of the able-bodied subjects and that the amputees were able to recover from a poorly conditioned status after endurance training.

This paper proposes a new MOS-gate transistor structure (IEGT) for the first time, that realizes enhanced electron injection so that the carrier distribution takes a form similar to that of a thyristor and a low forward voltage drop is attained even for 4500 V devices.A developed simple analytical one dimensional model can predict a sufficiently accurate current voltage curve and clarifies a new design criterion for IEGT operation, A fabricated 4500 V IEGT realized a 2 . 5 V forward voltage drop at 100 A/cmz. The IEGT had a current density over ten times that of the conventional trench gate IGBT at 2 . 5 V forward voltage drop, An operation mode of IEGT has been theoretically and experimentally confirmed. IEDM Technical b e s t .

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In this study, independent ambulation of at least 100 metres with/without a cane was regarded as successful prosthetic rehabilitation. The subjects were classified into two groups according to this criterion at the time of discharge. The successful group attained this performance, the other group failed to reach this level. The successful group included 8 unilateral trans-femoral amputees aged 72.2 +/- 2.1 years who underwent amputation at more than 70 years, and succeeded in walking with a prosthesis. The group which failed included 9 unilateral trans-femoral amputees aged 63.2 +/- 2.1 years who underwent amputation between the ages of 60-65 years, and had great difficulty in walking with a prosthesis. The purpose of this research was to investigate whether or not %VO2max as an indicator of physical fitness is useful in predicting prosthetic rehabilitation outcome after dysvascular amputation by comparing these two groups. Evaluation of physical fitness was conducted before the subjects began prosthetic rehabilitation. Information about each subject before fitting with a prosthesis was collected retrospectively from clinical charts made during admission. The successful group were capable of strenuous exercise, reaching the intensity of 50% VO2max or more. In the group which failed only one reached the intensity of 50% VO2max. The working capacity of 50% VO2max or greater would appear to be a valid initial guideline level of physical fitness at which an amputee can expect to succeed in walking with a prosthesis. Apart from physical fitness, a lesser number of comorbidity, good ability to stand on the remaining leg, and a strong will to walk were found to be important factors contributing to successful prosthetic rehabilitation. This study also showed that age alone was not an important factor.

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