著者
荒井 龍弥 Tatsuya Arai 仙台大学 Sendai College
雑誌
仙台大学紀要 = Bulletin of Sendai College (ISSN:03893073)
巻号頁・発行日
vol.32, no.1, pp.35-48, 2000-11-01

A topic of recent interest in educational psychology is that students have wrong or scientifically unreasonable knowledge. This knowledge is called by various terms, for example, "misconception", "conceptual bug", "lay theory" or "RU-bar". In a college of sports science, it is an important educational target to remove misconceptions about sports. In this study, two investigations were carried out to reveal what sort of misconceptions about sports students had. In a preliminary research, 673 students in a college of sports science were asked to report about their misconceptions after having had the concept of RU-bar explained in an educational psychology class. From their repots, 47 things were judged to be misconceptions. Then, in the main research, 241 students were asked to rate 23 misconceptions selected from the 47, using a 5-scale rating method. They did the rating twice, to recall when they were in high school and the present time. The results showed the following. 1) When they were in high school, the average rating of 12 out of the 23 items was higher than 3, suggesting that many students had several misconceptions at high school. But nowadays, this number has reduced by half. It would seem that education at college was effective. 2) Within the items related to each other, because the value of partial correlation was low, this means that students answered without consistency. It was considered that any RU-bar did not exist in these items.
著者
Noriyuki Kuya Jian Sun Ken Iijima Ramaiah Venuprasad Toshio Yamamoto
出版者
日本育種学会
雑誌
Breeding Science (ISSN:13447610)
巻号頁・発行日
pp.19003, (Released:2019-10-04)
被引用文献数
10

Direct seeding saves time and labour in the cultivation of rice. However, seedling establishment is often unstable, and yields are lower than in transplanting. Anaerobic germination (AG) is a key trait for improvement of direct seeding of rice. We established a simple and reliable method of evaluating AG in rice breeding. We germinated seeds in distilled water or deoxygenated water and measured coleoptile length several days later; compared the results of each method with survival rate in flooded soil; and used the anoxic water method for QTL analysis and for testing cultivars. Coleoptile elongation in anoxic water and survival rate in flooded soil were significantly correlated (r = 0.879, P < 0.01). A significant QTL, likely to be a major gene (AG1), was found in chromosome segment substitution lines and in a backcrossed F2 population derived from tolerant and sensitive lines. Diverse rice genetic resources were classified into tolerant or sensitive accession groups reflecting their ecotypes. Our study revealed that anoxic water evaluation method saves space and time in a stable environment compared with flooded soil evaluation. It is applicable to QTL analysis and isolation of genes underlying anaerobic germination.
著者
中澄 博行
出版者
一般社団法人 色材協会
雑誌
色材協会誌 (ISSN:0010180X)
巻号頁・発行日
vol.63, no.11, pp.677-684, 1990-11-20 (Released:2012-11-20)
参考文献数
53
被引用文献数
2 4
著者
鈴木 守
出版者
一般社団法人 照明学会
雑誌
照明学会雑誌 (ISSN:00192341)
巻号頁・発行日
vol.57, no.4, pp.249-252, 1973-04-25 (Released:2011-07-19)
参考文献数
8
著者
大野 善雄
出版者
Japan Society of Civil Engineers
雑誌
土木史研究 (ISSN:09167293)
巻号頁・発行日
vol.12, pp.395-402, 1992-06-05 (Released:2010-06-15)
参考文献数
7

品川台場は幕末外国船の頻繁な来航に備えて江戸の護りを堅める必要から、江戸幕府が最後の国家的事業として、西欧式の築城術を取り入れて築造したわが最初の本格的な近代城郭で、当時の内外の知識(軍学)とわが国古来の石積技術を結集して出来上がったわが国最初のそして最後の海上遺構ということが出来る。当時品川海岸台場を含めて計7基の台場が築造されたが、その後東京湾の開発の歴史の中で撤去あるいは埋立地に埋没して現存するのは第三台場、第六台場のみで、両者とも史跡に指定されている。品川台場に対する土木技術としての関心は石垣にあるが、建設後一世紀余りを経て変状も著しく、最近修復に関連した調査が行われた。しかし、修復に当っての重要な情報である石垣の構造の詳細を知り得る図面等の資料は殆どなく、また、第三台場など変状が著しく現状から当初の形状を推定することは困難な状況であった。この報告は、文献による微かな手掛りと現況の実測結果、石垣技術の研究書などによる知識を基に総合的に検討し、台場石垣の構造および形状の推定を試みたものである。
著者
宮村 一夫
出版者
公益社団法人 日本化学会
雑誌
化学と教育 (ISSN:03862151)
巻号頁・発行日
vol.63, no.12, pp.584-587, 2015-12-20 (Released:2017-06-16)
参考文献数
2

有機化合物の分析法を分析手順に沿って概説した。各分析手順における留意点を中心に記してある。多くの方にとってわかりきったことであろうが,基本的な考え方から記すよう心がけた。