Masaaki Terano

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A lighting control method has been proposed which adjusts the circadian rhythms of office workers and eliminates a decrease in the arousal level in the afternoon by exposing a high intensity of light in the morning in order to improve their productivity. As a result, it was found that the task performance of the CPTOP test under 2,100 lx was significantly(More)
The authors have developed a performance test, CPTOP (Cognitive Performance Test of Productivity), which combines 11 basic task testss to evaluate intelligent abilities of office workers in order to quantitatively and objectively evaluate their productivity by controlling office environment. However, in the previous experiment, it was found that the results(More)
The authors have developed a performance test, CPTOP2 (Cognitive Performance Test of Productivity), which consists of four task tests to evaluate cognitive abilities of office workers in order to quantitatively and objectively evaluate their productivity by controlling office environment. In addition, the testing time of CPTOP2 becomes shorter than(More)
Metastatic brain tumors are known to produce the symptoms of stroke and intracranial high density areas are demonstrated by CT scan. But exact preoperative diagnosis is sometimes difficult. Recently, we have experienced three cases of metastatic brain tumors which began with the symptoms of vascular accident and were demonstrated as high density area by CT(More)
The concentration of serum immunoglobulins (IgG, IgM, IgA) in 63 patients of primary brain tumors were determined by the method of single radial immunodiffusion. 1) The mean values and standard deviations of three major serum immunoglobulins in 18 cases of meningioma were as follows; IgG, 1297.0 +/- 387.9 mg/dl, IgM, 165.1 +/- 153.4 mg/dl, IgA, 219.5 +/-(More)
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