The teaching of German as a Foreign Language(DaF)aims to prepare students who study German and take the DaF exam for their professional studies in German universities.Therefore,it is important to integrate the element...The teaching of German as a Foreign Language(DaF)aims to prepare students who study German and take the DaF exam for their professional studies in German universities.Therefore,it is important to integrate the elements of specialised language knowledge and develop the students’professional communicative competence in the Test DaF curriculum.This paper identifies the specialized language knowledge and professional communicative competence that should be incorporated in German language teaching,based on the objectives of the DaF examination.展开更多
目的:观察六味地黄丸方对秀丽隐杆线虫寿命、生殖力、运动能力的影响并探讨其可能的分子机制。方法:秀丽隐杆线虫分为空白对照组、六味地黄丸方高、中、低剂量组(160、80、40 mg·m L-1)。寿命实验观察各组线虫平均寿命;生殖能力测...目的:观察六味地黄丸方对秀丽隐杆线虫寿命、生殖力、运动能力的影响并探讨其可能的分子机制。方法:秀丽隐杆线虫分为空白对照组、六味地黄丸方高、中、低剂量组(160、80、40 mg·m L-1)。寿命实验观察各组线虫平均寿命;生殖能力测试中,计数各组总子代数目;运动能力实验测试各组线虫20 s内身体弯曲的次数。实时荧光定量PCR(Real-Time PCR)方法检测空白组和六味地黄丸方中剂量组的daf-2 m RNA、daf-16 m RNA表达变化。结果:与空白组比较,六味地黄丸方中、低剂量组均能延长线虫的平均寿命(P<0.01),以中剂量组更为显著,并可明显提高线虫生殖高峰期及末期的生殖能力。与空白组比较,各剂量组均使线虫运动能力明显减缓(P<0.01);用药组daf-2 m RNA表达明显下调(P<0.05);daf-16 m RNA表达明显上调(P<0.05)。结论:六味地黄丸方能明显延长秀丽隐杆线虫寿命,其机制可能与下调daf-2基因和上调daf-16基因表达有关。展开更多
文摘The teaching of German as a Foreign Language(DaF)aims to prepare students who study German and take the DaF exam for their professional studies in German universities.Therefore,it is important to integrate the elements of specialised language knowledge and develop the students’professional communicative competence in the Test DaF curriculum.This paper identifies the specialized language knowledge and professional communicative competence that should be incorporated in German language teaching,based on the objectives of the DaF examination.
文摘目的:观察六味地黄丸方对秀丽隐杆线虫寿命、生殖力、运动能力的影响并探讨其可能的分子机制。方法:秀丽隐杆线虫分为空白对照组、六味地黄丸方高、中、低剂量组(160、80、40 mg·m L-1)。寿命实验观察各组线虫平均寿命;生殖能力测试中,计数各组总子代数目;运动能力实验测试各组线虫20 s内身体弯曲的次数。实时荧光定量PCR(Real-Time PCR)方法检测空白组和六味地黄丸方中剂量组的daf-2 m RNA、daf-16 m RNA表达变化。结果:与空白组比较,六味地黄丸方中、低剂量组均能延长线虫的平均寿命(P<0.01),以中剂量组更为显著,并可明显提高线虫生殖高峰期及末期的生殖能力。与空白组比较,各剂量组均使线虫运动能力明显减缓(P<0.01);用药组daf-2 m RNA表达明显下调(P<0.05);daf-16 m RNA表达明显上调(P<0.05)。结论:六味地黄丸方能明显延长秀丽隐杆线虫寿命,其机制可能与下调daf-2基因和上调daf-16基因表达有关。
