Effect of three cooking methods on nutrient components and antioxidant capacities of bamboo shoot (Phyllostachys praecox C.D. Chu et C.S. Chao)     

Zhang JJ  Ji R  Hu YQ  Chen JC  Ye XQ 《Journal of Zhejiang University. Science. B》2011,12(9):752-759

Three cooking methods, namely boiling, steaming, and stir-frying for 5 to 10 min, were used to evaluate the effect on nutrient components, free amino acids, l-ascorbic acid, total phenolic contents, and antioxidant capacities of bamboo shoots (Phyllostachys praecox). Results showed that boiling and stir-frying had a great effect on the nutrient components and they decreased the contents of protein, soluble sugar, and ash, and caused a great loss in the total free amino acids (decreased by 38.35% and 34.86%, respectively). Significant differences (P<0.05) in free amino acids were observed in the samples cooked by different methods. Stir-fried bamboo shoots had a high fat content which increased by 528.57% because of the addition of edible oil. After boiling, the L-ascorbic acid and total phenolic contents were significantly reduced, while steaming increased total phenolic content by 3.98% and stir-frying well-preserved L-ascorbic acid (78.87% of its previous content). Results of the antioxidative property study showed that stir-frying could increase antioxidant capacities of bamboo shoots. It is concluded that stir-frying is more suitable for bamboo shoots because it could obtain the maximum retention of antioxidant capacities.  相似文献   

体育规则：足球规则修改与集体项目规则的比较研究          下载免费PDF全文

Robert C.R. Siekmann 《体育科研》2014,(6):51-53

本文以法学视角,尤其是国际法视角,通过研读规则文本的方式,对足球规则的演进进行分析,并且揭示一些目前体育法领域关注的问题:体育法(lex sportiva)确实存在,包含了公法部分(国际公约、国家立法)和私法部分(体育规则);体育规则(Laws of the game)是体育法的核心,包括国家、地区以及全球范围内各级体育主管部门的章程与条例;项目规则是体育法的另一个重要核心,作者以足球为例,论证了为什么项目规则也是法的问题。  相似文献   

The minimizing style: perceptions of psychological abuse and quality of past and current relationships     

Varia R  Abidin RR 《Child abuse & neglect》1999,23(11):1041-1055

OBJECTIVE: The goals of this current project were to expand and elaborate on the results of Varia, Abidin, and Dass' (1996) study to better understand what historical parenting factors may contribute in creating a "Minimizing" perception of childhood psychological abuse. A second objective included examining the association between perceptual styles and adult ratings of adult relationship satisfaction. METHOD: Ninety individuals from a non-clinical adult sample completed self-report questionnaires regarding psychological maltreatment and adult relationship satisfaction. Three groups were created and compared using analysis of variance. The groups were (I) "Non-Abused," consistent reporters of no abuse; (II) "Acknowledgers," consistent reporters of abuse; and (III) "Minimizers," reporters of abuse, but do not label themselves as having been abused. RESULTS: Results indicated a continuum effect with the Non-Abused individuals reporting the highest level of maternal warmth and affection, the Acknowledgers reporting the lowest, with the Minimizers in the middle. The Non-Abused group reported the healthiest adjustment in terms of adult relationship satisfaction. While Minimizers and Acknowledgers reported similar levels of psychologically abusive experiences, Acknowledgers reported more difficulties with adult relationships. CONCLUSIONS: This study highlights the importance of studying Minimizers, a group which describes abusive events but minimizes the meaning and scope of these experiences. The relatively higher levels of maternal care which the Minimizers reported is hypothesized to be associated with their perceptions that they were not abused and acted as a protective factor associated with better quality adult relationships. The varying degrees of nurturance and care in the early family environment of abused individuals is speculated to be associated with distinct perceptual styles.  相似文献   

速度滑冰的蹬冰力     

J·J库宁  R·W波尔  滕放 《哈尔滨体育学院学报》1989,(1)

在速度滑冰中,成绩与运动员每次蹬冰所产生的功量和蹬冰的频率乘积有关。运动员每次蹬冰所做的功取决于与滑行方向垂直的蹬冰力的分力。通过对三个受过训练的速滑运动员测试,测定他们在不同速度时的蹬冰力。结果表明;在不同的速度时,最大的蹬冰力与平均蹬冰力并不改变。而且速度越大,蹬冰时间越短。由此可见,速滑运动员并不是通过改变蹬冰力的大小,而是通过改变蹬冰时间来调节速度。蹬冰力——时间曲线的图形形状取决于蹬冰技术,并且直道滑行与弯道滑行的曲线形状也有区别。速度滑冰的成绩与运动员用于克服空气和冰面摩擦阻力的外功P。密切相关(Ingen Schenau)。外功P。等于每次蹬冰  相似文献   

论博物馆的藏品保护     

P·R·沃德  子系 《中国博物馆》1985,(4)

对于我们自己和这个世界,我们真正了解的只是过去的一切;对于过去的一切,我们所能了解到的又只是幸存下来的那些实物。我们的历史只有很少一部分记载在文献资料中,而文献资料又要受到人类错误观念的影响。只有人类的物质世界历史的实物资料才是无可争  相似文献   

Professor of Medicine,University of Edinburgh, 1747-1766     

Whytt R 《Medical Library and Historical Journal》1904,2(3):153-160

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第五代计算机与工程师及知识工程     

Enna.  R 赵正迈 《河海大学科技情报》1989,9(5):67-71

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世界级短跑运动员的训练     

R.L.黑斯勒  李桂华 《中国体育科技》1989,(Z1)

本文系统地介绍了一位世界级短跑运动员阿尔伯特在1988年比赛季节前及进人室内训练季节前4个月遵循的训练计划(包括该计划各时期的训练量、强度的变化及训练手段、方法等),提出了力量训练中用力百分比锥体形结构,还介绍了心理准备。  相似文献   

航空和社会     

Géo R.Besse  金同超 《科学对社会的影响》1981,(3)

飞机是否飞得太高了?这个不必回答、只是为了加强印象的反问句表明这样一种关切:今天飞机的航线并不象从前的商业和旅行的非常大的交通干线——沙漠和海洋——一样,也许不会对航线通过的国家的民族和文化产生相对来说较深远的影响。诚然,飞机用于空中运输正在不断地使地球变小,而飞机用于空中作业,创造了许多人道主义的或科学上的奇迹。“但是”,作者问道,“飞机是否深入到了人的内心世界?是否改变了人的心理活动或丰富了人的文化生活?”  相似文献   

氢弹大事记     

Sawyer  R 张建堂 《科学学译丛》1991,(4):72-79

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