神经元

It is composed of variable neurons, Lagrange multiplier neurons and Kuhn-Tucker multiplier neurons which are interconnected.

该模型由变量神经元、Lagrange 乘子神经元和Kuhn-Tucker乘子神经元相互连接构成。

Results The number and the mean optical density of Bcl-2-IR neurons were significantly increased with rhIL-6 in cultured hippocampal neurons.

结果 培养3、7、14、21和28 d时，rhIL-6组神经元活存数、Bcl-2-IR阳性神经元数和Bcl-2-IR阳性神经元的平均光密度均明显高于对照组。

In the 65 recorded neurons, the results showed: Characteristic frequency , minimum threshold and response latency was between 18.9 and 76.7 kHz (42.94 ± 11.29), 29 and 80dB SPL (58.65 ± 12.62), 3.1 and 13.4 ms (6.10 ± 1.47), respectively; CFs increased with the recording depth, but CF and MT were not correlated; There were three different types of discharge patterns in the IC, including phasic pattern (73.9%), chopper (15.4%) and tonic (10.7%); The types of frequency tuning curves were all V-shaped, most of which were wide type and few were narrow type.

结果发现，在所得的65个下丘神经元中：特征频率在18.9～76.7kHz(42.94±11.29)之间，最小阈值在29～80dB SPL(58.65±12.62)之间，潜伏期在3.1～10.4ms(6.10±1.47)之间；特征频率随记录深度的增加而增大，与最小阈值之间没有显著相关性；发放类型包括相位型(73.9%)、梳齿型(15.4%)和紧张型(10.7%)3种基本类型；频率调谐曲线均为开峰型，多数神经元(72.3%)调谐曲线较宽阔，少数(27.7%)较狭窄，并且多数神经元的频率调谐曲线高频边比低频边陡。

In conclusion, Schwann cells from wallerian degenerating facial nerves of rats might bear with similar biological characteristics and functional phenotype to those from sciatic nerves in vitro, and they might be able to produce soluble NTFs for trophic support on facial motoneuron cultures. The establishment of methods for obtaining high-purity facial motoneuron cultures of rats with partially labeled fluorescence should be of significance in contribution to further investigation on facial motoneuron's response to NTFs and other affecting factors.

综上所述，本文通过面神经雪旺氏细胞体外培养条件下生物学特性、功能表型，及其对培养面神经运动神经元细胞的营养活性作用的研究，为在体外条件下研究雪旺氏细胞对面神经运动神经元的营养支持作用时，如何选择细胞来源，提供了实验依据；建立了获得较高纯度并带荧光标记的面神经运动神经元的分离和体外培养方法，为进一步研究影响面神经生长、损伤后再生修复的因素奠定了实验基础。

The intensity of pulse noisy pixels significantly differs from adjacent pixels of image. The de-noising will be accomplished by modifying the intensity of the noisy pixel according to the firing patterns of adjacent neurons of PCNN. At last, this dissertation suggests a new kind of filter for de-noising pulse noise based on the PCNN and median filter. It is very simple, and the simulation experiment of the image processing shows that the de-noising effect is much better than neighborhood averaging method and median filter.

一般脉冲噪声点与其所在图像像素灰度值之间相关性很差，而PCNN脉冲耦合神经网络能使相似神经元同步激发；这就决定亮点脉冲噪声像素对应神经元会在其区域所在相邻神经元中首先激发，为此结合中值滤波，我们提出了结合PCNN脉冲耦合神经网络和中值滤波的混合滤波新算法，理论分析和实验证明，该方案在滤除噪声的同时，比常规中值滤波更有效地保持了图像的高频细节信息。

Utilizing a variety of computer-generated patterns, we tested visual responses of 60 extracellularly recorded nLM cells and found that all these responses can be explained by the responses of neurons to edges of the objects.

使用多种视觉刺激检测扁豆核神经元的反应，发现神经元对所有刺激图形的反应都可归结为对边缘的反应，扁豆核神经元实质上是运动边缘检测器。

With billions of neurons, each with thousands of connections, one's noggin is a complex, and yes congested, mental freeway.

一个人的脑袋是一个复杂且拥挤的精神"高速公路"，拥有数以十亿计的神经元，并且每个神经元都和数千的神经元相互联系。

Open field test showed a low level of locomotion, rearing and grooming, which indicate a disruption of engagement in both a social and nonsocial nature and decreased explorational ability. These findings all fit the behaviors of depression. The increased adrenal weight and increased total number of CRF immunoreactive neurons in PVN of hypothalamus indicated the hyperactivity in HPA axis.

以上指标符合抑郁动物模型的标准；肾上腺重量增加和下丘脑室旁核CRF阳性神经元数目增加提示HPA活性升高；DST显示，预给地塞米松(dexamethasone，DEX)不能减少CUMS处理的大鼠下丘脑室旁核CRF阳性神经元数目，与之对应的是，预给DEX能够显著减少急性应激诱导的大鼠下丘脑室旁核神经元的增加，这提示DST的失抑制。

Pass nerve of pair of layer of different hidden from view yuan numerary considers to discover, when concealed layer nerve yuan amount is achieved 100 when, emulation result and degree of experimental data likeness achieved 90% above, and nerve of the layer that follow concealed yuan number increase, training error drops speed is accelerated, but training rate slows, training time is lengthened.

通过对不同隐层神经元数目的探究发现，当隐层神经元数目达到100时，仿真结果和实验数据相似程度达到了90%以上，且随隐层神经元数目增多，练习误差下降速度加快，但练习速度变慢，练习时间延长。

GDNF has been reported to exhibit trophic actions on various neurons of central nervous system and peripheral nervous system .

GDNF对中枢及外周的多种神经元有神经营养作用，与目前已知的神经营养因子相比，GDNF对受到损伤的多巴胺能神经元和运动神经元的促存活作用最为显著。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了