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Abstract］ Objective To explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.Methods Fourteen adult cadaver specimens of cervical spine（C3～C7）with intact structures including ligaments and perivertebral muscles were reserved and used.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性方法随机取14具福尔马林浸泡的成人颈椎标本（C3～C7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。

Abstract］ objective to explore the accuracy and safety of safety drillprepared for cervical pedicle screw trajectory.methods fourteen adult cadaver specimens of cervical spine（c3～c7）with intact structures including ligaments and perivertebral muscles were reserved and used.according to the radiographic measurements,safety drill was inserted into cervical pedicle individually.the evaluation of the drill's trajectory was carried out by ct scan and three-dimension reconstruction and autopsy.results one hundred and forty drill's trajectories were made.9 holes failed with a perforation rate of 6.4%.conclusion the safety drill prepared for cervical pedicle screw hole is safe and effective and can be applied and popularized clinically.

目的 探索安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性。方法随机取14具福尔马林浸泡的成人颈椎标本（c3～c7），保留完整的脊柱三柱结构及相关的韧带和椎旁肌，根据影像学测量的进钉点和进钉方向，模拟颈椎后路手术过程。选用安全钻头，进行实际的颈椎弓根螺钉孔道的钻探，将孔道行ct扫描，并斜位三维重建孔道形态，并以肉眼直视观察结果为金标准，评价孔道钻探的成败。结果钻探孔道准确率89.3%（125/140），穿孔率6.4%（9/140）。结论安全钻头应用于颈椎弓根螺钉孔道钻探的安全性与准确性均较高，可以在临床上推广使用。

An intact detenninantal formula of CGFPA is constructed, and its Pfaffian reduced formula is given.

建立了完整的CGFPA的行列式计算公式，推导出Pfaffian的行列式简化公式。

Two, it keeps the pharyngoesophageal region intact.

二，保持咽区域不变。

Another method for determining primary structure is to employ Edrnan's , which reacts quantitatively with the free amino group of a peptide to yield the corresponding pheny lthiocarbamoyl peptide, leaving the rest of the peptide chain intact.

另一种可以决定初级结构的方法是用埃德曼降解法，它们能与肽键上的游离氨基定量反应，产生相应的苯氨基硫代甲酰肽，而其余的肽链保持不变。

Objective:To study the effect of G6PD deficiency on membrane phospholipid structures. Methods: Treatment of intact erythrocyte with phospho- lipase A2 was used for the membrane phospholipid asymmetry.

目的：通过测定葡萄糖-6-磷酸脱氢酶(G6PD)缺乏红细胞膜磷脂的含量及其不对称性的变化，研究G6PD缺乏对红细胞膜结构的影响。

Using of agarose-embedment lysis cell wallmethod for preparing intact chromosomal DNA from phytopathogenic fungi is thefirst time.

首次采用凝胶包理破壁法由植物病原真菌分生孢子获得完整染色体DNA，克服了先用裂解酶破壁获得大量原生质体再用琼脂糖包理原生质体的传统制备方法的一些不足。

However, analysis results of SEM, WAXD, and mercury porosimeter demonstrated that the granule\'s topological morphology, crystal form and porosity were almost intact after the annealing treatment.

退火处理只是引起原生态聚丙烯粒子部分熔融和再结晶，使得结晶缺陷或者不完善部分趋于完善，其中150℃退火处理的效果最为明显。

Results:① large dose of piracetam(≧600mg/kg) significantly increased scores of praxiology(p.01)、decreased water content(p.05) and the expression of aquaporin( aqp4) in mcao.②all dose of piracetam decreased volume of ischemic (p.01) and remained relatively intact ultramicrostructure.

结果：吡拉西坦注射液剂量依赖性地降低侧大脑半球的含水量、改善其神经功能评分、下调水通道蛋白4(aop4)的表达、降低动物的脑梗死体积、改善缺血脑组织神经元细胞的超微结构。

The magazine merit depends on the pertinency is strong , selectivity is good , confidence is tall , reads rates height again and again , summons the strong point reading rates height , preserving scheduled time , has intact preservability , advertisement life to grow have certain authority together.

杂志的优点在于针对性强，选择性好，可信度高，并有一定的权威性，反复阅读率高，传读率高，保存期长，有完好的保存性，广告生命长。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。