导引与膳食处方对大学生慢性胃肠炎疾病影响的实验研究

笔者运用文献资料法、问卷调查法、实验对比法、数理统计法等研究方法,随机抽取了湖州师范学院200名大学生,进行了导引养生功与膳食处方对大学生慢性胃肠炎影响的实验研究。结果显示:导引养生功和膳食处方对大学生慢性胃肠炎疾病有很好的治愈效果。对于长期坚持练习的人而言,慢性胃肠炎疾病症状得到了明显的缓解,相反对于一些练习不认真,饮食不规律的人来说,实验效果并不明显。     

浅析太极拳运动体现的中医养生之道

太极拳是中华传统武术中的主要拳种之一,是我国优秀的文化瑰宝。它吸收了古代哲学、医学、武术、导引术、吐纳术等中国传统文化的精华,形成了一套符合中医理论的独特健身方法。因太极拳运动的特征淋漓尽致的体现了中医养生之道,从而使其在诸多的养生方法中脱颖而出,成为倍受欢迎的运动项目。现笔者就太极拳运动如何体现中医养生之道进行论述。     

农作物病虫综合防治的新阶段——“健身防治”

<正> 一、综合防治理论依据新探 农作物病虫综合防治是对有害生物(包括病虫草鼠等)的控制和使作物健身的科学管理体系。从这个意义上讲,它应该包含两层意思:一是对有害生物的防治、要求达到控制(检疫对象,要求“零”状态的控制)。二是不能为防治而防治,而应该达到农作物健身保产和增产的目的。 就农作物健身保产和增产而言,它是遵循着农作物对病虫害补偿作用规律的,简单地说,     

Fitness traits and underlying genetic variation related to host plant specialization in the aphid Sitobion avenae

Sitobion avenae （E） is an important cereal pest worldwide that can survive on various plants in the Poaceae, but divergent selection on different host plants shouldpromote the evolution of specialized genotypes or host races. In order to evaluate their resource use strategies, clones of S. avenae were collected from oat and barley. Host-transfer experiments for these clones were conducted in the laboratory to compare their fitness traits. Our results demonstrated that barley clones had significantly lower fecundityand tended to have longer developmental times when transferred from barley to oat. However, oat clones developed faster after they were transferred to barley. Clones fromoat and barley had diverged to a certain extent in terms of fecundity and developmental time of the nymphs. The separation of barley clones and oat clones of S. avenae was alsoevident in a principal component analysis. Barley clones tended to have higher broad-sense heritabilities for fitness traits than oat clones, indicating the genetic basis of differentiationbetween them. Barley clones showed significantly higher extent of specialization compared to oat clones from two measures of specialization （i.e., Xsp and Ysp）. Therefore, barleyclones were specialized to a certain extent, but oat clones appeared to be generalized. The fitness of S. avenae clones tended to increase with higher extent of specialization. Theevolution toward ecological specialization in S. avenae clones, as well as the underlying genetic basis, was discussed.