The object of this study is to clarify the construction and historical trends of the homes with middle corridors, as found in Goto City, Nagasaki Prefecture, Japan. The method of investigation was principally a field study of 158 homes in seven districts in Goto City. The study concentrated on analyzing the floor plans and age of the homes as well as the name given to the living space by the occupants. The use of the rooms was analyzed both in daily use as well as on special occasions. Particular attention was given to the relationship between the redidence with middle corridors and the living room. It is to be noted that the analysis was made with four new types of middle corridors in mind. Results of the study are as follows: 1. Of the seven districts, there were 48 houses equipped with middle corridors in 6 districts (The village of Hantomari is not included.), and, of these, 30 households referred to the room as living room. 2. Of the Goto City houses equipped with middle corridors, there were four types of corridors: 14 right-key corridors, 7 left-key corridors, 20 left/right-key corridors, and 7 straight corridors. 3. In the six districts, the oldest house with middle corridor built in 1951 was located in Dozaki and had a straight middle corridor. 4. The living rooms in houses with middle corridors in the six districts had four types which had changed over time from being a middle living space to a house with a middle corridor. And, at the same time, the separation of living rooms and bedrooms was also seen. Also, there were some cases where the middle living space had been transformed into the living room; the rooms were used for two purposes. There were four types of such houses. 5. The Goto City houses with middle corridors were mostly the straight corridor type houses, and the living rooms of these types were located to the rear. It is clear that this type house with a middle corridor is particular to Goto City.
In order to clarify anti-deposition effects of mukuroji pericarps, deposition of carbon black onto cotton and polyester fabrics has been studied in aqueous solutions of mukuroji pericarps. The rates of deposition were evaluated from the reflectivity of stained fabrics. It was revealed that the rate of deposition of carbon black onto the fabrics in an aqueous solution of mukuroji pericarps was lower than that in an aqueous solution of sodium dodecyl sulfate as well as in polyvinyl alcohol, which is a known anti-redeposition agent. In addition, it was revealed that theses effects were not introduced by the saponin component alone, but by the whole mukuroji pericarp which contains the non-saponin component.
With a view to furthering high school education on the community to which they belong, this report aims to clarify to what extent each high school identifies itself in relation to the surrounding area. The author sent a questionnaire to all national and public high schools in this country from late August to early September 2002; a total of 4,125 questionnaires were sent and 2,292 schools returned their replies (recovery rate: 55.6%). The results of the research are as follows. 1) Most schools interpret their community as a commuting area rather than an area within specifics distance or time, and the size of the commuting area differs from prefecture to prefecture. 2) As to whether or not the schools recognize the specifics or characteristics of their community, many schools replied in the affirmative while not many schools admitted that their students were aware of the specifics or characteristics of the community. It should be noted that the above is again different from prefecture to prefecture. 3) The Open School has been practiced at more than 90 percent of the high schools, but the contents of the project vary a great deal from prefecture to prefecture.