神经元

Results①Make clear of the general principal during the morphologicaldevelopment of the C57BL/6 mouse inner ear and reconstructed the 3D modelof E13 inner ear;②The mature time of many histological structuresassociated closely with the hearing setout of C57BL/6 mouse were madeclear as basilar membrane in D10, scala vestibular and tympanicD4, Cortis tunnel D12, inner sulcus D10, tectorial membrane D10, haircells D12, spiral ganglion neurons D12 and neurofilament in cochlear axisD12-D14.③Outlined the time table and the patterns of the expressionsof those proteins associated with the inner ear development which includedproneural committed proteins, neuronal differential proteins,neurotrophic factors and neuron special proteins.

结果①HE常规染色大体观上了解了C57BL／6小鼠内耳形态发育E8-Da期间的一般规律并且获得了E13的三维立体图像；②获得了各种听功能密切相关的结构的成熟时间点，基底膜(D10)、鼓阶前庭阶(D4)、螺旋器隧道(D12)、内螺旋沟(D10)、盖膜(D10)、毛细胞(D12)、螺旋神经元(D12)和蜗轴纤维(D12-D14)；③完成了前神经决定蛋白、神经分化蛋白、神经营养因子和神经元特异性蛋白等内耳发育相关的蛋白的表达时限表并详细观察了其在内耳各个部位表达随发育变化的特点：④Calbindin在E16以后的螺旋神经元没有表达，但是在scarpa神经元持续表达。

Results①Make clear of the general principal during the morphologicaldevelopment of the C57BL/6 mouse inner ear and reconstructed the 3D modelof E13 inner ear;②The mature time of many histological structuresassociated closely with the hearing setout of C57BL/6 mouse were madeclear as basilar membrane in D10, scala vestibular and tympanicD4, Corti\'s tunnel D12, inner sulcus D10, tectorial membrane D10, haircells D12, spiral ganglion neurons D12 and neurofilament in cochlear axisD12-D14.③Outlined the time table and the patterns of the expressionsof those proteins associated with the inner ear development which includedproneural committed proteins, neuronal differential proteins,neurotrophic factors and neuron special proteins.

结果①HE常规染色大体观上了解了C57BL／6小鼠内耳形态发育E8-Da期间的一般规律并且获得了E13的三维立体图像；②获得了各种听功能密切相关的结构的成熟时间点，基底膜(D10)、鼓阶前庭阶(D4)、螺旋器隧道(D12)、内螺旋沟(D10)、盖膜(D10)、毛细胞(D12)、螺旋神经元(D12)和蜗轴纤维(D12-D14)；③完成了前神经决定蛋白、神经分化蛋白、神经营养因子和神经元特异性蛋白等内耳发育相关的蛋白的表达时限表并详细观察了其在内耳各个部位表达随发育变化的特点：④Calbindin在E16以后的螺旋神经元没有表达，但是在scarpa神经元持续表达。

In this paper, the theory of artificial neural network is summarized; the analyse on BP neural network model is put stress on. For the predominance of artificial neural network"s dealing with non-linear complicated relation, the technology of artificial neural network is introduced into the evaluation of the highway bridge"s carrying capacity; and the preferences , the collection and disposal of stylebook, the structuring of BP neural network model are analyzed.

文中对人工神经元网络理论进行了综述，重点对神经元网络的BP算法进行了分析，利用人工神经元网络处理非线性复杂关系的优势，将人工神经元网络技术引入到公路桥梁承载力评估中；并对其中的参数选择、样本收集与处理、构造BP网络模型等进行了分析。

These data suggest that newborn neurons in adult "critical-period" songbirds are originated only from the ventricular zone of telencephalon and distributed mainly in the NCM, and that they are functional neurons with typical features of mature neurons.

本实验的结果表明，成年"临界型"鸣禽端脑中的新生神经元可能起源于端脑室带区，大量新生神经元主要分布于NCM，到达目的脑区的新生神经元已经发育成熟并具有功能神经元的特征。

Keywords: Neural network, Competitive learning, Vector quantization, Neuron underutilization, Algorithm

与传统竞争学习算法只有一个神经元获胜而得到学习不同，PSCL算法按照各神经元的获胜概率并通过对失真距离的调整使每个神经元均得到不同程度的学习，可以有效地克服神经元欠利用问题。

RESULTS: The mild traction group showed angulus anterior individual neuron slightly engorged, neuron and nerve fiber morphous was normal essentially; individual substantia alba demyelinates in fragmentis; medullary sheath and auxiliary fibers of nerve root were hydropsia slightly without conspicuous myelinolysis. The moderate traction group demonstrated myelinolysis change in the spinal cord, and neurofibras lined up chaos, auxiliary fibers disaggregated, neuron dropsy, tigroid body disappeared with karyopycnosis and anachromasis in neurons; nerve root showed myelinolysis. The severe traction group displayed a great demyelination region; anterior motor neurons with karyopycnosis and anachromasis; myelinated nerve fiber of nerve root shrinked, decreased in number, with severe demyelination changes.

结果：轻度牵拉组牵拉侧前角个别神经元稍肿胀，神经元及神经纤维形态基本上正常，个别白质小片状脱髓鞘样改变，神经根髓鞘和轴索轻度水肿，脱髓鞘不明显；中度牵拉组白质有脱髓鞘改变，神经纤维排列紊乱，轴索崩解、断裂；灰质神经元水肿明显加重，前角运动神经原细胞尼氏体消失，核固缩、深染，神经根髓鞘和轴索水肿，局部轻度脱髓鞘改变；重度牵拉组牵拉侧白质为不规则的大片脱髓鞘区，前角运动神经元胞体固缩、变形、核深染，神经根有髓神经纤维萎缩、数目减少，重度脱髓鞘改变。

All major neuropil regions are labeled by 5-HT antiserum except the optic lobes, antennal lobes and calyces of mushroom bodies, which are almost devoid of 5-HT immunoreactivity.

除常规的免疫阳性神经元(仅细胞质被标记的神经元和整个胞体都被标记的神经元)外，我们在前脑中部及触角叶内侧还发现了一些只有细胞核对 5-HT 抗血清发生反应的特殊神经元。

Periaqueductal gray neurons exhibit increased responsiveness associated with audiogenic seizures in the genetically epilepsy-prone rat.

总之，听源性惊厥发作诱导PAG内大量神经元表达c-fos基因，揭示了PAG内神经元功能活动的剧烈改变，N'Gouemo［12］的电生理研究也发现，听源性惊厥易感大鼠PAG内许多神经元表现为异常的高反应性状态，而且出现与强直相关的神经元异常放电，这些都进一步说明PAG参与了听源性惊厥发作过程，但其中的神经化学机制尚需进一步探讨。

The extremities were titanic, and there was no response to touch stimulations.Our results suggested that Pentobarbital sodium inhibited neuronal firing through GABA_A receptors, therefore the local field potentials and neural firing rates were inhibited; Urethane acted on many kinds of receptors including inhibitory and excitory ones, so the local field potentials did not change significantly; however, because of the multiform receptors on the neurons, the changing of firing rates to different neurons were not the same; Ketamine mainly acted on the NMDA receptors, therefore the local field potentials and neural firing rates were enhanced, and most neural firing rates would be increased.

从这三种麻醉剂的底层作用机制来看，戊巴比妥钠通过作用于GABAA受体对神经细胞发挥抑制性作用，因此表现为场电位和神经元放电的降低；氨基甲酸乙酯同时作用于多种受体通道，既有兴奋性受体，也有抑制性受体，因此，对场电位的影响不大，但对单个神经元来说，每个神经细胞上的受体通道分布差异较大，因此，单个神经元的放电频率变化会有所不同；盐酸氯胺酮主要作用于兴奋性的NMDA受体，故整体场电位活性增加，多数神经元的放电频率也会有所升高。

In the adult, cholinergic neurons in the laterodorsal and pedunculopontine tegmental have been implicated in the generation and maintenance of REMS.

虽然在成年人和动物，胆碱能神经元被认为是主要的REM睡眠的调节神经元，已有实验证实脑桥网状结构及脚桥被盖核胆碱能神经元在REMS的触发和维持中起着关键作用，然而，胆碱能神经元对于幼年期REM睡眠的作用仍有待进一步的研究。

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。