传导

Objective:To observe the distribution of adrenergic fibers in adult cardiac conduction system.

目的：观察成人心脏传导系统中肾上腺素能神经纤维的分布方法：采用荧光显微镜下观察10例成人心脏传导系统中的肾上腺素能神经纤维。

It follows that the mechanism of anodal relief of block can not be supposed to be simply a restoration of previously lowered membrane potential.

上述各种传导阻遏的特点，是或者根本没有膜电位的降低与之相伴，或者膜电位的降低发生在传导阻遏之后。

No Ⅲ° atrioventricular conduction block happened, 9 patients developed right bundle branch block, and 2 patients showed junctional rhythm. Two patients with perimembranous extending outlet were repaired because of residual shunt(0.4cm,0.3cm) on the anterosuperior rim of defect. One patient with trivial residual shunt(0.15cm) on the posteroinferior rim of defect was found closed spontaneously six months later. Tricuspid valve was incised in 10 patients of VSD sextending outlet,8 patients vertical to the valve ring,2 patients parallel to the valve ring. Moderate tricuspid valve regurgitation was found in 1 patient, mild in 5 patients, trivial in 4 patients. No one aggravated. One patient complicated with pericardial effusion.

无Ⅲ°房室传导阻滞发生，9例发生右束支传导阻滞，2例结性心律。2例膜周偏流出道型VSD患者因前上缘残余分流分别为0.4cm和0.3cm，再次手术修补；1例后下缘残留细束样分流，直径0.15cm，随访6个月后自愈；10例膜周偏流出道型VSD患者剪开三尖瓣，8例垂直瓣环，2例平行瓣环；1例三尖瓣中度反流，随访无加重；5例轻度反流，4例轻微反流，随访均无加重；1例心包积液；1例再次进入手术室止血。

Furthermore, we analyzed the possible mechanism. Methods: We established the arterially perfused rabbit left ventricular wedge preparations to record transmembrane ECG and action potentials of the epicardial cells and endocardial cells simultaneously. We divided two groups by setting the location of premature beats.

本试验以冠状动脉灌注兔左心室楔形组织块标本为研究对象，观察期前刺激位置对单向传导阻滞的时间易损窗的影响、单向传导阻滞和折返激动时间易损窗的关系及折返起源部位等，并分析其可能机制。

Organic atrioventricular block has different performance of the HRV in different situations.

2器质性一度房室传导阻滞中，不同的情况有不同的一度房室传导阻滞的 HRV 表现。

The in vitro effects of Gln49-PLA_2 were examined using the chick biventer cervicis nerve muscle preparation. Gln49-PLA_2 caused a dosedependent blockade of neuromuscular transmission. The time required to cause 50% blockade was about 150 min at the highest concentration 100μg/ml. This inhibition appeared to be presynaptic in origin as evidenced by the lack of effect of toxin on responses to exogenous acetylcholine in the non-stimulated BCp.

Gln49-PLA_2能够剂量依赖性地抑制颈二腹肌神经信号正常传导并影响肌肉收缩，在100μg/ml剂量下，肌肉收缩幅度在150分钟后达到50%的抑制率；同时，随着Gln49-PLA_2浓度的降低，肌肉收缩幅度的抑制效率也逐渐降低；实验证明Gln49-PLA_2对突触后膜乙酰胆碱受体敏感性无影响，对神经肌肉信号传导收缩的抑制作用位点在突触前膜。

The concepts of degree of enthalpy and enthalpy diffusivity are introduced in terms of the concept of enthalpy in calorifics. Heat equation of enthalpy is constructed and converted into heat equation of temperature by latent heat.

因此根据热力学中焓的概念，提出了焓度和焓扩散系数的概念，建立了焓的热传导方程并根据潜热把焓的热传导方程转化为温度场方程。

Objective To investigate the methods of making the visual pathway specimens from calvaria and skull base and provide intuitionistic experimental specimens for anatomy teaching and morphological support for the study of the structure and mechanism of the visual pathway.

目的 探讨视觉传导路标本颅顶及颅底的制作方法，为解剖实验教学提供直观形象的标本，并为研究视觉传导路的构架及机制提供形态学支撑。

Shell Cassida Fluid HT 32 is a synthetic heat-transfer fluid for close d circuit and pressureless heat transfer systems.

壳牌加适达HT 32润滑油是一种用于闭路循环和无压热传导系统的合成热传导润滑油。

Shell Cassida Fluid HT 32 is a synthetic heat-transfer fluid for closed circuit and pressureless heat transfer systems.

壳牌加适达HT 32润滑油是一种用于闭路循环和无压热传导系统的合成热传导润滑油。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。