过伸性颈椎颈髓损伤的手术入路疗效比较

目的探讨过伸性颈椎颈髓损伤后三种手术入路疗效的比较。方法我们对2000年9月～2004年10月间收治的47例过伸性颈椎颈髓损伤并接受手术治疗的患者进行回顾性分析，根据手术方式不同分成三组：前路入路组、后路入路组、前后联合入路组，比较其疗效。结果所有患者经6～12个月随访，比较三组间手术前、后的Frankel的分级变化和ASIA评分改变。三组术后神经功能均较术前有明显改善；前路减压、植骨内固定和前后联合入路减压、植骨内固定均较后路减压、植骨内固定术后神经功能恢复好，两两间差异有显著性意义（P〈0．05）；前后联合入路减压最彻底，但其预后与单纯前路减压内固定差异无显著性意义（P〉0.05）。结论前路减压内固定是过伸性颈椎颈髓损伤首选的手术方式，后路是辅助的手术方法，而前后联合入路应谨慎选用。     

非线性动力学在脑神经系统研究中的应用

采集一组脑电数据，利用3种非线性动力学算法对数据进行性分析，通过对结果的分析展望了非线性动力学方法在研究脑神经系统方面的应用前景。     

高等院校专业课程开展双语教学的若干问题分析

双语教学是贯彻教育“三个面向”原则在教学中的一个有效载体 ,双语教学核心目的仍然是专业的思想、内容与能力的学习与培养 ,讨论了专业课程双语教学的目标、基本条件、教学方法、考试考核及现阶段开展双语教学应注意的主要事项。     

Synthesis of CCK-8 Tetrapeptide Fragment by Enzymatic Method

Cholecystokinin (CCK )isa polypeptidehor monecontaining 33aminoacidsresiduewithgastroin testinal,biliarandbrainactivities Itiswidelydis tributedinthevertebratecentralnervoussystem ,anditcanstimulateextensivelytheliberationofinsulinandglucagonfromtheLangerhansislets GreateffortshavebeendevotedtothesynthesisofCCK 8,itsderivativesandanalogues Amongthedifferentmethods ,theenzymaticmethodisthemosteffectiveonewithmanyadvantagesoverconventionalchemicalmethodologies :enzymespecificitysuppress essid…     

全科医疗质量评价指标体系的研究

本研究采用改进的Delphi法，经过两轮专家咨询，建立一套合理的全科医疗质量评价指标体系。两轮咨询专家的权威程度较高，其平均值分别为0．7634，0．7378。专家意见的协调系数分别为：0．122，0．231。最终确定全科医疗评价指标体系共有指标146项，其中一级指标4项，二级指标30项，三级指标112项。其中服务内容、服务满意度、效果效益、卫生经济4项一级指标的权重系数分别为0．2416、0．2646、0．2453、0．2485。     

间接测热法和反向Fick氏法测定心脏手术病人术后氧耗量的比较

目的 采用反向Fick氏法和间接测热法测定心脏手术后病人的全身氧耗,并比较两种测量方法的相关性和准确性。方法8例心脏手术术后病人,分别在入ICU后2h和6h时同时采用反向Fick氏和间接测热法测定病人的全身氧耗量。结果 间接测热法和反向Fick法测得氧耗分别是(16±30)ml·min-1·m-2和(127±23)ml·min-1·m-2,前者的测定结果显著高于后者(P<0.01)。相关分析显示两者有较好的相关性(r=0.92,P<0.01)。采用Bland和Altman统计分析提示两种测定结果的平均偏离值为(35.5±13.4)ml·min-1·m-2,其95％的分布范围是(9～62)ml·min-1·m-2,提示两种测量结果间的一致性较差。结论 两种方法测定心脏病人术后全身氧耗的结果有明显差异,其中反向Fick氏法的测定结果误差大、准确性差,而间接测热法是较好的临床选择。     

52例电烧伤的治疗分析

目的：总结电烧伤的治疗方法。方法：对52例资料齐全的电烧伤病人的治疗方法及疗效进行回顾性分析。结果：单纯电火花烧伤的治疗和一般烧伤相同，电击伤多为早期清创，植皮覆盖创面。结论：电烧伤创面根据情况可有多种治疗方法：包括单纯换药，湿润烧伤膏，中厚皮片移植，皮瓣移植等。     

Using Computer Simulated Results of a Bulk Drug Substance Assay to Determine Acceptance Criteria for Method Validation

Purpose. To determine the statistical variability expected for a well designed HPLC assay of a bulk drug substance (BDS). The results are used to develop appropriate acceptance criteria for a method validation protocol as well as to evaluate the level of uncertainty expected for assay results using a variety of sampling/injection schemes. Methods. Computer simulation was used to generate a large quantity of data and the variability of the mock results was evaluated. Error propagation was also calculated, whenever possible, to confirm results obtained from the simulations. Results. Protocol acceptance criteria were developed that were consistent with the expected variability for data resulting from the execution of the validation protocol. In certain cases simulations provided the only avenue of obtaining results that could not otherwise be readily determined. Conclusions. Computer modeling can be used to obtain suitable acceptance criteria for validation results which are consistent with method variability. This is particularly significant in the case of linearity where it has been difficult to develop acceptance criteria based on anything other than analyst intuition and experience. Assay simulations clearly demonstrated that the variability expected for a typical BDS assay is large relative to the average specification range and therefore little insight about relative purity can be gained comparing individual passing assay results.     

一种鉴别肥大细胞表型的复合染色法

运用ABC-爱先蓝-PAS复合染色法,分别对大鼠肝,胃、肠中不同表型肥大细胞即结缔组织肥大细胞(CTMC)和粘膜肥大细胞(MMC)进行鉴别染色实验。结果表明:肝汇管区MC呈棕褐色;胃粘膜上皮及粘膜下结缔组织内MC分别被染成蓝色和棕褐色;肠粘膜固有层MC呈蓝色.通过不同颜色反应从而确定其MC表型。本实验还通过对染色顺序。固定液选择等的多次摸索。取得了较好的染色效果,与其它检测方法的结果相一致,但试剂来源方便,操作简易。一般实验室即可进行。     

Improved sib-pair linkage test for disease susceptibility loci

An improved sib-pair test for linkage is introduced which is superior to the previously proposed tests. The test is derived from the standard chi-squared goodness of fit statistic by restricting the alternative hypothesis to the genetically possible. Critical values are given and exact power comparisons are made with the previously proposed tests. The new test is shown to be more powerful for finite samples as well as being asymptotically uniformly most powerful. © 1993 Wiley-Liss, Inc.