神经元

In the range of 200~600 nm,the absorbance at 12 wavelengths was taken as characteristic parameter of artificial neural network.

人工神经网络是在生物学中神经网络理论的基础上，简化了复杂结构的偏微分方程，构成了多个神经元互联网络的结构，研究这

Synchronization in a pair of chaotic Chay neurons coupled by synaptically mutual inhibition is considered in this paper.

一对抑制性突触耦合的混沌Chay神经元的同步模式被研究。

Transitions of different neuronal firing patterns in the Chay model are explored by numerical simulation and bifurcation analysis of limit cycle, with respect to three firing sequences observed in experiments on neural pacemakers.

本文利用神经元Chay 模型，对实验中观察到的三种放电节律模式序列进行数值模拟，并应用余维1极限环分岔分析研究了其产生机理。

Since the character of network capability can also be influenced by the processing function of hidden neurons, a Chebyshev orthogonal neural network, in which the Chebyshev function is chosen for the hidden unit processing function, is proposed and the optimization algorithm under norm‖x‖〓 is investigated.

由于网络隐层神经元处理函数对网络性能也有重要影响，故将Chebyshev函数选为隐单元的处理函数而提出Chebyshev正交神经网络，并讨论了一致范数‖x‖〓意义下的优化算法。

This indicated that there were functional relations between the LVPO and NTS/NRA, and further supported that the LVPO might play a role in central chemoreception.

观察到电刺激LVPO，可以使部分NTS和NRA区的单位放电频率增加，提示LVPO与NTS和NRA之间存在功能联系，经统计学检验提示LVPO与NTS和NRA中的各类神经元功能联系的机率相似

4DRG was co-culture with sciatic nerve segment in 10%FBS+DMEM; the axons were longer and surround the sciatic nerve segment which was regard as a new evidence for chemotropism.

4有血清条件下联合培养，观察到神经元的轴突环绕坐骨神经段生长，呈现诱导现象，并且能够促使轴突长度明显增长。

Then the intracellular calcium concentration of neurons was measured by laser confocal scanning microscope , represented by the mean intracellular fluorescent intensity. On the ice, the cerebral cortical tissue at the infarction margin of the section after optic chiasm was rapidly dissociated about 100mg, then made into brain homogenate in low temperature. The high performance liquid chromatography was used to determine the Glu, Asp and Gly contents in homogenized brain tissue.

视交叉平面用2％TTC染色，用图像处理软件计算出脑梗死面积占该片脑组织面积的百分比；取视交叉前平面梗死边缘区皮层组织约100mg，用酶消化法制作神经细胞悬液，用激光扫描共聚焦显微镜检测皮层神经元细胞内游离钙离子浓渡，以细胞平均的荧光强度代表细胞内钙浓度；冰上迅速分离视交叉后梗死边缘区皮层组织约100mg，于低温下制作脑组织匀浆，用高效液相色谱法测定皮层匀浆中谷氨酸、天门冬氨酸、甘氨酸的含量。

The following methods were used in the study, such as viral inoculation of animal, pathological method, flow cytometry, RT-PCR, in situ hybridization, immunohistochemistry and terminal deoxy nucleotidyl transferase mediated dUTP nick end labling . Morphological changes of the infected chickling, dynamic changes of T, B cells and T subsets, changes of adhesion molecules on the lymphocyte surface, necrosis and apoptosis of lymphocyte and neurons, changes of MIP-1β and IL-8 producing cells in the brain, cell types of perivascular tuffing in cerebral tissue were systematically studied.

在研究过程中，采用了病毒接种技术、普通病理学研究方法、流式细胞仪技术、RT-PCR技术、原位杂交技术、免疫组化技术、凋亡细胞末端标记技术，系统研究了不同日龄的SPF雏鸡人工感染AEV-NH937株后的病理变化，T和B淋巴细胞、T淋巴细胞亚群的动态变化规律，淋巴细胞表面某些粘附分子的变化，淋巴细胞和神经元的坏死与凋亡，雏鸡脑组织中产生趋化因子MIP-1β和IL-8细胞的变化规律，脑组织中围官性细胞浸润的细胞类型。

The following methods were used in the study, such as viral inoculation of animal, pathological method, flow cytometry, RT-PCR, in situ hybridization, immunohistochemistry and terminal deoxy nucleotidyl transferase mediated dUTP nick end labling. Morphological changes of the infected chickling, dynamic changes of T, B cells and T subsets, changes of adhesion molecules on the lymphocyte surface, necrosis and apoptosis of lymphocyte and neurons, changes of MIP-1β and IL-8 producing cells in the brain, cell types of perivascular tuffing in cerebral tissue were systematically studied. The key research results were.(1)The average percentage of CD19+cell in blood, bursa and spleen, after 3, 5 days of inoculation, was significantly Phybridization revealed that the number of IL-8 and MIP-1βproducing cells was increased in the infected brain.

在研究过程中，采用了病毒接种技术、普通病理学研究方法、流式细胞仪技术、RT-PCR技术、原位杂交技术、免疫组化技术、凋亡细胞末端标记技术，系统研究了不同日龄的SPF雏鸡人工感染AEV-NH937株后的病理变化，T和B淋巴细胞、T淋巴细胞亚群的动态变化规律，淋巴细胞表面某些粘附分子的变化，淋巴细胞和神经元的坏死与凋亡，雏鸡脑组织中产生趋化因子MIP-1β和IL-8细胞的变化规律，脑组织中围官性细胞浸润的细胞类型。

All experiments were carried out on 105 normotensive male Sprague-Dawley rats, weighing from 250-350g, anesthetized with urethane and α-chloralose, breathed spontaneously.

头端延髓腹外侧区是心血管交感活动的基本中枢，其神经元不仅参与基础心血管活动的维持，而且能对不同状态下的信息进行整合，从。。。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新