氯乙酸的

Objective:To explore the relationship of negative schizophrenic cognitive function improvement with HVA and 5-HIAA, Method:Thirteen negative schizophrenic patients were treated with clozapine for 8 weeks,Memory,attention,executive function were assessed separately with Waise memory scale,cancellation test and Wisconsin card sorting test before and after treatment,and cerebrospinal fluid HVA and 5-HIAA levels were determined with HPLC-ECD, Results:Part of short memory was improving with decreasing of HVA or increasing of 5-HIAA,while significant correlation were not found between improvement of memory quotient,attention,executive function and change of HVA,5-HIAA, Conclusion:The great part of negative schizophrenic cognitive function improvement has marked correlation with change of DA and 5-HT

目的：探讨阴性精神分裂症认知功能的改善与HVA和5-HIAA变化的关系。方法：对13例阴性精神分裂症在氯氮平治疗前和治疗8周后分别采用韦氏成人记忆量表，数字划消测验和威斯康星卡片分类测验(Wisconsin card sorting test，WCST)评估其记忆、注意及执行功能，采用高效液相色谱-电化学检测测定其治疗前和治疗后脑脊液中DA代谢产物高香草酸和5-HT代谢产物五羟吲哚乙酸(5-HIAA)的浓度。结果：部分短时记忆随HVA降低或5-HIAA的增高而改善。而总的记忆商数，注意及执行功能的改善与HVA和5-HIAA的变化无明显相关。结论：大部分阴性精神分裂症认知功能的改善与DA和5-HT浓度变化无明显相关。

The solubility of the novel polyamides are greatly improved compared with the conventional aramids, especially the polyamide with dendritic blocks of the second genernation as side chains are soluble in most of the common organic solvents such as ether, ethyl acetate, chloroform, acetone, tetrahydrafuran etc.

树状片段的引入大大地改善了聚酰胺的溶解性，特别是以第二代树状片段为侧基的聚酰胺的溶解性得到了很大的改进，可以溶于大部分常见的有机溶剂，如乙醚、乙酸乙酯、氯仿、丙酮、四氢呋喃等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。