体育与健康课程学生学习评价之管见     

李泽群 《高等农业教育》2003,(10):60-62

章论述了我国高等院校体育教学学生学习评价中存在的主要问题，研究了新的体育与健康课程中学生学习评价的内容、方法和原则，为建立新的课程体系提供了理论依据。  相似文献   

保健食品现状及前景   总被引：1，自引：0，他引：1  

李敏 《农产品加工．学刊》2006,(12):73-76

随着经济的迅速发展,人民生活水平的提高,居民健康问题给保健食品行业带来了极大的机遇和挑战。  相似文献   

萌动种子处理提高黄瓜幼苗的抗冷性   总被引：3，自引：0，他引：3  

刘明池 《华北农学报》1994,9(4):23-26

根据植物抗逆性交叉适应现象，试图通过对萌动种子进行低温，干旱处理来提高幼苗的抗冷性，并研究了３种种子处理对幼苗产生的影响。低变温，自然脱水和ＰＥＧ脱水３种种子处理都提高了黄瓜幼苗的抗冷性，提高了叶片ＳＯＤ酶和过氧化物酶的活性，但没出现新的同工酶带。种子处理的还提高了叶片中叶绿素总含量和叶绿素Ａ的含量，使植物生长趋势增强，地上部的鲜，干重及壮苗指标均得到明显提高。。  相似文献   

HPTLC screening of taro hybrids (Colocasia esculenta (L.) Schott) with high flavonoids and antioxidants contents          下载免费PDF全文

Vincent Lebot  Laurent Legendre 《Plant Breeding》2015,134(1):129-134

Taro (Colocasia esculenta) is the tropical root crop species featuring the greatest flavonoids diversity. Their quantification is important for breeding programmes focusing on biofortification. This study aims at developing an HPTLC protocol to compare the flavonoids fingerprints of more than 1800 hybrids belonging to 24 full‐sib families and to select genotypes with high levels of antioxidants. Twenty different chemical markers were identified based on bands R_f and colour. Flavonoids differ among individuals both quantitatively and qualitatively. Marker ‘A’ yielded the strongest antioxidant response to DPPH, equivalent to the one with quercetin pure standard. Overall, 377 high flavonoids content (HFC) hybrids were selected from 14 different families. The mean corm weight of HFC hybrids always appeared higher than the mean corm weight of the family they belong to. This method allows unambiguous selection of HFC hybrids. It also contributes to taro genetic improvement for nutritional value and access to new markets and to strengthen corm tolerance to pests and diseases. It could be applied to other tropical root crop species.  相似文献   

杨梅的营养保健和保鲜技术   总被引：5，自引：0，他引：5  

蔡健  宋华  金小花 《农产品加工．学刊》2005,(1):73-74

杨梅是我国南方特有的水果,富含人体需要的多种营养成分,杨梅的果实、叶、仁、树皮等具有较高的医疗价值。综述了杨梅的营养保健作用和保鲜技术,为杨梅的综合利用开辟了一条途径。  相似文献   

提高我国山鸡种蛋人工孵化技术的试验研究   总被引：3，自引：0，他引：3  

郑亚勤  关键  张丽敏 《天津农学院学报》2002,9(4):12-14,22

使用我国山鸡种蛋进行了3个人工孵化试验,每个试验设2次重复,测定在不同的孵化温度与相对湿度条件下,即高温度—低湿度、低温度—高湿度与恒温—恒湿,对胚胎发育的死亡率、受精蛋孵化率、健雏率、不同胎龄胚蛋的失重率及雏山鸡出生重的影响。试验结果表明:我国山鸡种蛋在不同的孵化温度、相对湿度的人工孵化条件下,其胚胎的死亡率、受精蛋孵化率与健雏率均有显著差异（P<0.05）,而在雏山鸡出生重等方面差异不显著（P>0.05）。为我国山鸡种蛋的人工孵化提供了技术材料与数据。  相似文献   

试论精神性疾病的病因机理及预防——对大学生精神性疾病的浅析     

米翠萍  张树兵 《山西农业大学学报(自然科学版)》1992,(1)

本文对10年来(1981—1990)全校学生6269人中患精神性疾病的调查情况进行了病因病机的探讨,并提出相应的预防措施。笔者认为: 1 十年来大学生中精神性疾病的发生有明显的上升趋势。发病人数后五年为前五年的3.5倍. 2 精神性疾病的病因与患者的性格有直接的关系,其次与学生来源地区的文化水平、经济状况、社会变革、学校家庭的教育有关。另外亦与遗传因子有关。 3 高等学校除了重視政治思想教育和专业学习外,还应注意学生的心理健康教育,极早发现学生中精神性疾病的早期表现,针对性地进行疏导教育,做到“防患于未然”,使这部分学生亦能身心健康地成长。  相似文献   

Social-ethical issues concerning the control strategy of animal diseases in the European Union: A survey   总被引：1，自引：0，他引：1  

Nina E. Cohen  Marcel A.P.M. van  Asseldonk  Elsbeth N. Stassen 《Agriculture and Human Values》2007,24(4):499-510

In 2004 a survey was conducted in the member states of the European Union designed to gain greater insight into the views on control strategies for foot and mouth disease, classical swine fever, and avian influenza with respect to the epidemiological, economic and social-ethical consequences of each of these animal diseases. This article presents the results of the social-ethical survey. A selection of stakeholders from each member state was asked to prioritize issues for the prevention and control of these diseases. A majority of stakeholders chose preventive measures as the preferred issue. An analysis was done to determine whether there were differences in views expressed by stakeholders from member states with a history of recent epidemics and ones without such a history, and whether there were regional differences. There were no differences between member states with or without a history of recent epidemics. There were indeed regional differences between the priority orders from Northern and Southern Europe on the one hand, and from Eastern Europe on the other. Nina E. Cohen is a biologist and is a researcher at the Wageningen University. She is specialized in societal and ethical issues in human–animal relationships. Her current research is focused on the social-ethical issues concerning the prevention and control of foot and mouth disease, classical swine fever and avian influenza. Marcel A.P.M. van Asseldonk has studied animal science. Currently he works at the Institute for Risk Management in Agriculture (IRMA) of the Wageningen University. He is specialized in the design and pricing of insurance policies and animal health funds for the main livestock epidemics. Elsbeth N. Stassen is a veterinarian and professor of Animals and Society at the Wageningen University. Elsbeth Stassen is specialized in animal health, animal welfare and human–animal relationships. She was a member of a governmental welfare committee during the avian influenza epidemic in the Netherlands in 2003.  相似文献   

生猪价格超常波动对健康养殖推广的影响   总被引：1，自引：0，他引：1  

单福彬 《畜牧与饲料科学》2011,(6):41-43

生猪价格的超常波动使生猪养殖风险增大、收益不稳定,频繁的价格波动影响了养殖主体决策的理性,同时,养殖主体决策的非理性也会对生猪健康养殖推广造成明显的障碍。因此,只有确保中央政策与地方政策的配套协同,构建生猪产业链内各主体之间合理的利益关系,对养殖主体的心理预期进行调节,针对养殖主体的需求改变推广模式与方法,才能有效突破生猪价格波动对生猪健康养殖推广的制约。  相似文献   

马齿苋功能饮料的研究   总被引：5，自引：1，他引：5  

于新  李竞 《农业工程学报》2001,17(6):115-118

以马齿苋为主要原料，加入4倍重量的85～95℃的热水，在pH值为5的条件下浸提2次，每次5～10 min。过滤，冷却至25～30℃，调节pH值到6～7。过滤，加入柠檬酸、甜叶菊糖、维生素C等进行调配，得到酒红色的马齿苋独特风味的功能饮料。本产品优点在于无糖、低热值，入口清香，回味甘甜纯厚，具有马齿苋天然中药材的功能。  相似文献