随着大学英语教学改革的开展,教师话语(teacher talk,TT)对英语语言教学(English language teaching ,ELT)的影响已成为一个亟需关注的新课题.本文通过教材分析、个例研究,论证了TT对ELT的重大影响.并以理论和实践经验为基础,提出TT设计...随着大学英语教学改革的开展,教师话语(teacher talk,TT)对英语语言教学(English language teaching ,ELT)的影响已成为一个亟需关注的新课题.本文通过教材分析、个例研究,论证了TT对ELT的重大影响.并以理论和实践经验为基础,提出TT设计的4个要点,以期抛砖引玉,使同行专家们关注并参与TT的研究.展开更多
目的探究血栓通注射液联合利伐沙班治疗髋关节置换术后下肢深静脉血栓的临床疗效。方法选取2011年11月—2014年11月在延安大学附属医院骨科接受髋关节置换术后发生下肢深静脉血栓的患者78例,按照治疗方案不同分为对照组和治疗组,每组各3...目的探究血栓通注射液联合利伐沙班治疗髋关节置换术后下肢深静脉血栓的临床疗效。方法选取2011年11月—2014年11月在延安大学附属医院骨科接受髋关节置换术后发生下肢深静脉血栓的患者78例,按照治疗方案不同分为对照组和治疗组,每组各39例。对照组口服利伐沙班片,1片/次,1次/d。治疗组在对照组治疗的基础上静脉滴注血栓通注射液,5 m L溶于0.9%生理盐水250 m L中,1次/d。两组均连续治疗14 d。观察两组的临床疗效,比较两组治疗前后D-二聚体、患肢膝上差、膝下差、静脉血流速度、激活部分凝血活酶时间(APTT)、凝血酶原时间(PT)、凝血酶时间(TT)、纤维蛋白原(FIB)的变化情况。结果治疗后,对照组和治疗组的总有效率分别为84.62%、97.44%,两组比较差异有统计学意义(P<0.05)。治疗后,两组D-二聚体、膝上差、膝下差、FIB均显著降低,患侧血流速度、APTT、PT、TT显著升高,同组治疗前后差异具有统计学意义(P<0.05);且治疗组这些观察指标的改善程度优于对照组,两组比较差异具有统计学意义(P<0.05)。结论血栓通注射液联合利伐沙班治疗髋关节置换术后下肢深静脉血栓具有较好的临床疗效,可显著改善患者的凝血状态,具有一定的临床推广应用价值。展开更多
Testicular torsion （TT） is a serious urologic emergency that is observed in adolescent males and that can lead to infertility if left untreated. The ischemia-reperfusion （I/R） injury due to TT has been implicated ...Testicular torsion （TT） is a serious urologic emergency that is observed in adolescent males and that can lead to infertility if left untreated. The ischemia-reperfusion （I/R） injury due to TT has been implicated in the pathogenesis of testicular damage. We investigated the effects of melatonin on oxidative damage in the ipsUateral and contralateral testes of rats induced by unilateral TT. A total of 21 prepubertal male Wistar albino rats were divided into three groups, each consisting of seven rats, In Group 1 （SHAM group）： a sham operation to the left testis and bilateral orchiectomy were performed. In Group 2 （I/R group）： I/R injury was created by rotating the left testis 720° in a clockwise direction for 2 h and detorsing the testis after 2 h. Group 3 （I/R ＋ MEL group）： rats were subjected to I/R injury and one-shot melatonin injection （50mgkg-1, intraperitoneal （i.p.））. The testes of the rats were excised bilaterally in all groups. The testicular tissue activities of antioxidant catalase （CAT）, superoxide dismutase （SOD） and glutathione peroxidase enzymes （GSH-Px）, and the tissue levels of malondialdehyde （MDA）, protein carbonyl （PC） and nitric oxide （NO） were determined. Administration of melatonin caused a significant decrease in lipid peroxidation and enzyme activities in the ipsilateral testis when compared with the control group （P 〈 0.05）. All of the changes in the enzyme activities of the contralateral testis were insignificant （P 〉 0.05）. MDA levels were significantly altered in the contralateral testis （P = 0.009）, Melatonin administration decreased the deleterious effects of I/R injury in the ipsilateral torted testes of the rats. The contralateral testes were slightly affected by unilateral TT.展开更多
目的探讨多囊卵巢综合症(PCOS)患者血清硫酸脱氢表雄酮(DHEAS)及总睾酮(TT)与血脂异常的关系。方法选择在我院就诊的未经过药物治疗的PCOS患者219例,分别检测其血清DHEAS、TT及血脂相关指标,并对其进行统计分析。结果 TT高值组的BMI、DH...目的探讨多囊卵巢综合症(PCOS)患者血清硫酸脱氢表雄酮(DHEAS)及总睾酮(TT)与血脂异常的关系。方法选择在我院就诊的未经过药物治疗的PCOS患者219例,分别检测其血清DHEAS、TT及血脂相关指标,并对其进行统计分析。结果 TT高值组的BMI、DHEAS、CHOL、LDL-C及Apo B明显高于TT低值组,具有统计学意义(P<0.05)。DHEAS高值组的Apo A I明显高于DHEAS低值组,具有统计学意义(P<0.05)。血清TT水平与BMI、DHEAS、CHOL、LDL-C及Apo B正相关,而与年龄负相关,具有统计学意义(P<0.05)。DHEAS水平与TT、HDL-C及Apo A I正相关,而与Apo B负相关,具有统计学意义(P<0.05)。结论高水平DHEAS常与较好的脂类代谢参数相关联,而恰恰相反,高水平TT常与较差的脂类代谢参数相关联。在预测PCOS患者发生血脂异常及冠心病的危险时,要区分不同来源的雄激素的不同意义。展开更多
文摘随着大学英语教学改革的开展,教师话语(teacher talk,TT)对英语语言教学(English language teaching ,ELT)的影响已成为一个亟需关注的新课题.本文通过教材分析、个例研究,论证了TT对ELT的重大影响.并以理论和实践经验为基础,提出TT设计的4个要点,以期抛砖引玉,使同行专家们关注并参与TT的研究.
文摘目的探究血栓通注射液联合利伐沙班治疗髋关节置换术后下肢深静脉血栓的临床疗效。方法选取2011年11月—2014年11月在延安大学附属医院骨科接受髋关节置换术后发生下肢深静脉血栓的患者78例,按照治疗方案不同分为对照组和治疗组,每组各39例。对照组口服利伐沙班片,1片/次,1次/d。治疗组在对照组治疗的基础上静脉滴注血栓通注射液,5 m L溶于0.9%生理盐水250 m L中,1次/d。两组均连续治疗14 d。观察两组的临床疗效,比较两组治疗前后D-二聚体、患肢膝上差、膝下差、静脉血流速度、激活部分凝血活酶时间(APTT)、凝血酶原时间(PT)、凝血酶时间(TT)、纤维蛋白原(FIB)的变化情况。结果治疗后,对照组和治疗组的总有效率分别为84.62%、97.44%,两组比较差异有统计学意义(P<0.05)。治疗后,两组D-二聚体、膝上差、膝下差、FIB均显著降低,患侧血流速度、APTT、PT、TT显著升高,同组治疗前后差异具有统计学意义(P<0.05);且治疗组这些观察指标的改善程度优于对照组,两组比较差异具有统计学意义(P<0.05)。结论血栓通注射液联合利伐沙班治疗髋关节置换术后下肢深静脉血栓具有较好的临床疗效,可显著改善患者的凝血状态,具有一定的临床推广应用价值。
文摘Testicular torsion （TT） is a serious urologic emergency that is observed in adolescent males and that can lead to infertility if left untreated. The ischemia-reperfusion （I/R） injury due to TT has been implicated in the pathogenesis of testicular damage. We investigated the effects of melatonin on oxidative damage in the ipsUateral and contralateral testes of rats induced by unilateral TT. A total of 21 prepubertal male Wistar albino rats were divided into three groups, each consisting of seven rats, In Group 1 （SHAM group）： a sham operation to the left testis and bilateral orchiectomy were performed. In Group 2 （I/R group）： I/R injury was created by rotating the left testis 720° in a clockwise direction for 2 h and detorsing the testis after 2 h. Group 3 （I/R ＋ MEL group）： rats were subjected to I/R injury and one-shot melatonin injection （50mgkg-1, intraperitoneal （i.p.））. The testes of the rats were excised bilaterally in all groups. The testicular tissue activities of antioxidant catalase （CAT）, superoxide dismutase （SOD） and glutathione peroxidase enzymes （GSH-Px）, and the tissue levels of malondialdehyde （MDA）, protein carbonyl （PC） and nitric oxide （NO） were determined. Administration of melatonin caused a significant decrease in lipid peroxidation and enzyme activities in the ipsilateral testis when compared with the control group （P 〈 0.05）. All of the changes in the enzyme activities of the contralateral testis were insignificant （P 〉 0.05）. MDA levels were significantly altered in the contralateral testis （P = 0.009）, Melatonin administration decreased the deleterious effects of I/R injury in the ipsilateral torted testes of the rats. The contralateral testes were slightly affected by unilateral TT.
文摘目的探讨多囊卵巢综合症(PCOS)患者血清硫酸脱氢表雄酮(DHEAS)及总睾酮(TT)与血脂异常的关系。方法选择在我院就诊的未经过药物治疗的PCOS患者219例,分别检测其血清DHEAS、TT及血脂相关指标,并对其进行统计分析。结果 TT高值组的BMI、DHEAS、CHOL、LDL-C及Apo B明显高于TT低值组,具有统计学意义(P<0.05)。DHEAS高值组的Apo A I明显高于DHEAS低值组,具有统计学意义(P<0.05)。血清TT水平与BMI、DHEAS、CHOL、LDL-C及Apo B正相关,而与年龄负相关,具有统计学意义(P<0.05)。DHEAS水平与TT、HDL-C及Apo A I正相关,而与Apo B负相关,具有统计学意义(P<0.05)。结论高水平DHEAS常与较好的脂类代谢参数相关联,而恰恰相反,高水平TT常与较差的脂类代谢参数相关联。在预测PCOS患者发生血脂异常及冠心病的危险时,要区分不同来源的雄激素的不同意义。
