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一类半线性抛物型方程全离散Chebyshev拟谱逼近的大时间性态 被引量:1
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作者 向新民 王鼎 《计算数学》 CSCD 北大核心 2002年第1期53-66,共14页
In thc paper, the nonperidic initial value problem for a class of semilinear parabolic equations is considered. We construct the full discrete Chebyshev pseu- dospectral scheme and analyze the error of approximate sol... In thc paper, the nonperidic initial value problem for a class of semilinear parabolic equations is considered. We construct the full discrete Chebyshev pseu- dospectral scheme and analyze the error of approximate solution for it. We obtain the error estimation on large time using the local continuation method and the existence of approximate global attractor. This method can be applied to other nonlinear problems too. 展开更多
关键词 半线性抛物型方程 Chebyshev拟谱逼近 大时间误差估计 近似吸引子 大时间性状
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Study on efficacy and safety of acupuncture for treatment of functional constipation 被引量:8
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作者 张超贤 秦咏梅 《World Journal of Acupuncture-Moxibustion》 2010年第3期6-12,共7页
Objective To explore clinical efficacy and safety of acupuncture in treatment of functional constipation.Methods One hundred and twenty cases were randomly divided into an observation group and a control group,60 case... Objective To explore clinical efficacy and safety of acupuncture in treatment of functional constipation.Methods One hundred and twenty cases were randomly divided into an observation group and a control group,60 cases in each group.The patients in the observation group were treated with acupuncture at Tiānshū(天枢 ST 25),Shàngjùxū(上巨虚 ST 37),Zúsānlǐ(足三里 ST 36),Dàchángshū(大肠俞 BL 25),etc.,and the control group was treated with oral administration of Macrogol 4000 and Mosapride.Defecation frequency,stool property,constipation symptom score,accompanying symptom score,gastrointestinal transit time and adverse reaction were observed before treatment,at the end of treatment and 4 weeks after treatment in the two groups.Results Compared with those before treatment,defecation frequency was increased significantly at the end of treatment in the two groups,while stool property,constipation symptom score,accompanying syndrome score and gastrointestinal transit time all were decreased significantly(all P0.01),with no significant difference in these indexes between the two groups at the end of treatment (all P0.05).Compared with the end of treatment,the above-mentioned indexes did not significantly recur in the observation group 4 weeks after the treatment (all P0.05),but the therapeutic effects were unstable with decreased to some extent in the control group (all P0.05).No serious adverse reaction was found in the two groups.Conclusion In the patients with functional constipation,acupuncture can significantly increase defecation frequency,change stool property,alleviate constipation and accompanying symptoms,and shorten gastrointestinal transit time with better safety and tolerance,and the therapeutic effect is more stable than that of Macrogol 4000 and Mosapride. 展开更多
关键词 ACUPUNCTURE Functional Constipation Defecation Frequency Stool Property Gastrointestinal Transit Time
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