present study assessed the ability of normal Japanese adults to recognize kanji
and hiragana characters through passive finger tracing without visual cues. We
tested fifty-six right-handed Japanese university students using the left or
right hand. Participants recognized approximately 50% of 44 kanji characters,
regardless of the hand they used. The results are consistent with previous
findings in Chinese speakers. In contrast, the average correct response to the
44 hiragana was almost 80%, again irrespective of hand. The results are
discussed in terms of differential processing systems for Japanese writing and
of differential cerebral hemispheric specializations.
This paper describes optimal investment strategies for kinked utility functions. One example is a CRRA utility function with a kink at a maximum wealth, which leads a covered call “like” strategy and the other is a CRRA utility function with a kink at a minimum wealth, which leads a protective put “like” strategy. This paper introduces analytic mathematical solutions providing a mathematical explanation of a dual utility where Black-Sholes assumption is utilized in the solutions. The intuitive solutions are clear for cases of those kinked utilities but minute mathematical explanation is described. Also a numerical simulation is performed for a covered call like strategy case.
Seeking the possibility of the formation of benzoic acids from benzyl halides in natural soil, a model oxidation reaction of
the halides was carried out in the presence of water and soil in an open air
under UV light irradiation. Addition of TiO2 to soil raised the yield of the acid,
implying such a metal oxide plays a real catalytic role in this oxidation. By
these supplementary experiments, one of the possibilities for the formation of
benzoic acids in natural soil from benzyl chlorides was supported.
The present study examined the effects of air pollutants on people’s health, focusing on dust produced from automobile tires while cars drive on roads. The annual volume of dust resulting from tire wear, calculated based on the number of automobiles registered in Japan, was 1747245.4 m3. To put it simply, this translates to approximately 1.4 times the volume of the Tokyo Dome, a famous Japanese baseball stadium. Particulate substances are categorized into three groups depending on their size, and dust resulting from tire wear is classified into the coarse particle mode along with mold spores, pollen, and dust produced from brake pads. This study examined whether or not tire dust causes health damage similarly to pollen, a particulate substance in the same group. There were 38/cm2 dust particles resulting from tire wear on a busy road in Osaka Prefecture, and this number was larger than that of cedar pollen/cm2 (35), a cause of hay fever, identified in Hokkaido. The results suggest that tire dust may also adversely affect the health of people if any of its constituents has a toxicity or causes allergies.