著者

加藤 清司 平野 眞

出版者

東海大学

雑誌

東海大学紀要. 課程資格教育センター (ISSN:09169741)

巻号頁・発行日

vol.3, pp.69-77, 1993

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In Japan, many public junior high schools have a rule on close-cropped for boys on the grounds for protection against a delinquency, good sanitation, and concentration in school studies as a part of guidance. Although many assert the rule to invide schoolboy's fundamental human rights, little study has been done on the pedagogical value of the rule. Recently, we attempted to clarify the effects of the rule using statistical analysis. Our working hypothesis was that if the rule had pedagogical effects, the prevalence of the rule in each prefecture would be associated with indices on those effects. We calculated single correlation coefficients of the prevalence of rule with some indices on pedagogical effects and also with indices on pedagogical environment or on regional characteristics. The prevalence of the rule in each prefecture was represented by that in the prefectural capital. After the single correlation coefficient analysis, the multiple correlation analysis was done using indices for which the single correlation coefficient with the pevalence was over 0.2. Of the indices of pedagogical effects, the mean score of the Entrance Examination Center test showed a weak but not significant negative correlation, especially physics and English. Ratio of long-term absentees due to illness and ratio of juvenile delinquent arrested under larceny offenses showed weak but not significant positive correlations. Other indices on pedagogical effects showed no correlations. None of the indices on pedagogical environment showed significant correlations. In indices on regional characteristics, ration of runaways showed a strong positive correlation (p=0.45), and perinatal mortality showed statistically significant positive and number of museums per population showed statisitcally significant negative correlations. According to the multiple correlation analysis, ratio of runaways, number of people per copy of the newspaper, perinatal mortality, number of museums per population and ratio of longterm absentees due to illness were selected and the coefficient of determination was 0.33. These results clearly disprove the pedagogical value of the school rule on closecropped hair for boys. Moreover, they suggested that the rule hinders them from developing their flexible thinking power. From the strong correlation of the ratio of runaways with the prevalence of the rule, it is suspected that the educational function of the family is impaired in regions where the prevalence of the rule is high. In conclusion, this rule has inverse educational effects, and its prevalence would be an index for educational incompetence of the family and school, or backwardness in culture.

著者

大石 修治 望月 圭介 平野 眞一

出版者

公益社団法人日本セラミックス協会

雑誌

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi (ISSN:18821022)

巻号頁・発行日

vol.102, no.1185, pp.502-504, 1994-05-01

被引用文献数

3 6

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The growih of emerald crystals by the flux evaporation method in the system Mo0_3 B_20_3 rs reported. The crys tal growth was conducted by heating a mixture of a so lute (3BeO・Al_2O_3・6SiO_2+1wt% Cr_2O_3) and a fiux (MoO_3 B_2O_3) at 1100℃, followed by holding at 1100℃ for 10, 20, 25 and 30h. The evaporation loss of flux decreased gradually with increasing amount of B_20_3 ad ded to Mo0_3 and increased with the holding time. The transparent emerald crystals were grown with the typi cal emerald green color in size up to I mm. The crystal size was dependent on the evaporation loss of flux. Hexagonal thin plate like crystals were grown from an Mo0_3 rich flux containing 0.15 0.60 wt% B_20_3. The plate like crystals were bounded by the {0001} and {1010} faces. In rare cases, the small {1120} faces ap peared. Crystals grown froun the MoO_3 flux were twelve sided prism in shape. Molybdenum trioxide con taining a small amount of B_2O_3 was found to be a suita ble flux for growing plate like crystals of emerald.

著者

平野 眞完

出版者

Japanese Association of Indian and Buddhist Studies

雑誌

印度學佛教學研究 (ISSN:00194344)

巻号頁・発行日

vol.9, no.2, pp.538-539, 1961-03-31 (Released:2010-03-09)

著者

平野 眞一 田島 伸

出版者

Japan Society of Powder and Powder Metallurgy

雑誌

粉体および粉末冶金 (ISSN:05328799)

巻号頁・発行日

vol.37, no.3, pp.421-425, 1990-04-25 (Released:2009-05-22)

参考文献数

12

被引用文献数

3 2

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The formation process and magnetic properties of Fe3C particles were investigated. Various iron oxides as a starting material were carbureted with CO gas in a furnace. Fe3C was formed at the reaction temperatures from 450 to 600°C. The partial pressure of CO gas was controlled by mixing with N2 gas to prevent the free carbon deposition due to the disproportionation of CO gas. Synthesized Fe3C particles were identified as a single phase by XRD and the weight change measurement. The saturation magnetization of Fe3C increased from 80 to 117 emu/g with the increase of the reaction temperature, while the coercive force decreased from 170 to 80 Oe with the increase of the reaction temperature.