ニンジンジュース連続飲用によるカロテノイドの体内蓄積と排泄

Dietary carotenoids are absorbed from the digestive tract and distributed in tissues and fluids in the body. However, little is yet known on their absorption and metabolism. The purpose of this study was to investigate the absorption and excretion of carotenoids in human after continual in, gestion of carrot juice. ln this study, we used carrot juice as sample because carrot juice is the best β-carotene source as human food. Seven healthy female subjects were ingested 2 cans of carrot juice per day for 2 weeks. The concentration of carotenoids (β-carotene, lycopene, xanthophyll) and retinol in human serum and feces were measured before and after continual ingestion. Serum β-carotene level after ingestion was very high level, but it decreased smoothly over 3 weeks. This suggests that continual ingestion of carrot juice was effective for the accumulation of serum β-carotene. In the case of fecal β-carotene level, the content was increased significantly and fecal lycopene level also increased a little. From this result, carotenoids interaction was observed between β-carotene and lycopene. Probably, because of the rapid increase internal β-carotene level when the subjects ingested carrot juice, accumulating lycopene would be squeezed out of the body

ソーシャルサポートの効果についての探索的研究 : 公立小・中学校教員の自由記述の分析をもとに

The purpose of this research is to clarify the positive and negative effects of social support among teachers. A questionnaire survey was completed by 190 public elementary and junior high school teachers in Japan. The results were as follows : (1) Positive effects of social support were found to consist of : "instrumental support" and "socio-emotional support". (2) Negative effects of social support were found to consist of : "a supporter\u27s unsuitable behavior", "an unsuitable support", and "a mismatch between the supportee\u27s needs and the supporter\u27s behavior". These results were disscussed in relation to a theoretical model. In addition, investigations were conducted as to how teachers should be supported by others

乳化剤無添加のジアシルグリセロールで調製した油中水滴型エマルションの乳化特性に及ぼす塩類の影響

The effect of various types of salt on the properties of water-in-oil emulsions prepared with diacylglycerol (DAG) without the addition of an emulsifier was examined. Aqueous salt solutions containing 0, 0.025, 0.05, 0.1, 0.25M and 0.5M concentrations of NaCl, KCl, CaCl_2, MgCl_2, Na_2S0_4, K_2 SO_4 and MgSO_4 were each separately used as aqueous phase. The same volume of DAG and each salt solution was emulsified at 10,000 rpm for 5 min. The emulsion stability, the particle-size distribution and the flow behavior of each emulsion were measured. The emulsion stability was markedly increased by the addition of all types of salt tested, the stability depended on salt concentration up to 0.1M. In spite of the combination of different anion, this effect was stronger for those salts having a divalent cation than a monovalent cation. On the other hand, the particle-size distribution of the all of the emulsions was similar, regardless of the type of salt or its concentration. A high salt concentration had a greater effect and increased for those salts having a divalent cation than a monovalent cation on flow behavior. From these results, we thought that divalent cations in the emulsions would have strengthened the film of the oil-water interface

建物外皮に用いるガラス表面の気流性状と室内空気の垂直温度分布に関する実験研究(その1) : 非空調時の気流性状と垂直温度の重心(中性帯)について

With the enactment of Japan\u27s Energy Conservation Law in 1980, window glass in building external walls was extremely reduced over the next about 6 years. However,through the efforts of glass manufacturers, energy conserving glass, such as heat reflecting and highly insulated glass, Low-E glass, and bi-layered glass were developed, and from about the end of the 80s on, buildings using large amounts of glass began to increase. Today, even buildings with exteriors made entirely of glass are capable of meeting Energy Conservation Law PAL values, and glass is reaching the height of its popularity. However, it has been commented that during spells of fine weather and clear days, the brightness of these glass buildings can hurt the eyes, and their year-round thermal load is great compared with concrete buildings. Thus, we believe it is necessary to investigate the light and thermal characteristics of glass. Up until now, various research has been carried out on glass, but this report uses experiments on interior climate, and explores airflow characteristics, thermal characteristics, light charaeteristics, and vertical temperature distribution in the vicinity of glass, with the goal of clarifying optimal usage for glass. Furthermore, as a starting point, the airflow characteristics around glass installed on building exteriors, vertical temperature distribution, and the position of the center of gravity of room interior air, were investigated

基本6表情認知における注視部位の基礎的検討 II : 刺激提示前の注視点の位置がカテゴリー判断に及ぼす影響

For the recognition of six basic expressions (happiness, surprise, fear, sadness, anger and disgust) using, as the stimulus, Japanese facial expression images composed on the basis of the FACS (Facial Action Coding System), the time spent by the observer was measured for scanning each facial area (forehead, brow, eye, nose, mouth and cheek) of the stimulus. In Bamba and Uemura (2007), the visual fixation point seen by the observer preceding the presentation of each stimulus was located in the area corresponding to the middle of the two eyes of the stimulus. In the present study, we examined the observer\u27s fixation under four different conditions for the prefixation point, viz. corresponding to the upper, lower, left and right positions of the subsequent stimulus. The fixation time was measured by means of an Eye-tracker. Twenty undergraduate and graduate students of a women\u27s university participated as the observers. The results showed that the longest fixation time required was in the eye area in all the six facial expressions, regardless of the location of the pre-fixation point