神经形成

It is accepted that once the diagnosis of a tethered spinal cord is made untethering is recommended prior to the development of the inevitable deterioration that is seen in the unoperaed patient.

因此我们形成一个治疗规范，一旦诊断为脊髓拴系，建议在没有发生不可逆神经损害前接受手术治疗，这是从不接受手术的患者那里得到的教训。

However, fully consideration of special structure and physiological function of CRP is critical to investigate whether CRP provide protect effect or pathogenic effect in the progression of atherosclerosis. CRP is a member of pentrxins family, which consists of five identical, noncovalently associated 23-kDa protomers arranged symmetrically around a central pore with a 102 A external diameter. Each protomer has a recognition face with a phosphocholine binding site consisting of two coordinated calcium ions adjacent to a hydrophobic pocket. The opposite face of the pentamer is the effector face, where complement Clq binds and Fc receptors are presumed to bind. A cleft extends from the center of the protomer to the central pore of the pentamer. Both faces ofpentamer form a special bi-phase structure: one face is the ligand recognition phase, which can recognize apoptosis cells and enzyme modified low density lipoprotein in which PCh is exposed.

CRP是一种五聚体蛋白，外径为102 A，由5个相同的单体以非共价键结合，形成双面的环形结构，每个单体的配体识别位点或受体结合位点分别位于五聚体两个平面上，分别组成配体识别相和效应器相，从而构成特殊的二相性结构：一面为配体识别相，含有磷酸胆碱(phosphorycholine，PCh)结合位点，能够使CRP识别在病理条件下暴露出PCh的凋亡细胞、酶修饰低密度脂蛋白(enzyme modified low density lipoprotein，E-LDL)等。E-LDL是天然低密度脂蛋白(native Low density lipoprotein，N-LDL)在多种蛋白酶，如胰蛋白酶、神经氨酸酶、胆固醇酯酶等作用下的代谢产物，其主要特点是结构发生改变(N-LDL大小均匀，平均直径250±30 A，E-LDL大小差异极大，直径为100-2000 A)，暴露磷酸胆碱位点，能够被CRP识别；另一面为效应器相，能够与巨噬细胞、单核细胞表面受体FcγRⅡa结合，介导巨噬细胞、单核细胞识别及吞噬凋亡、坏死细胞作用。

In this issue, now show that the multisubunit histone acetyltransferase Elongator may regulate migration and branch formation of cortical neurons in the developing mouse brain by acetylating -tubulin.

本文研究显示，在老鼠大脑发育时期，多亚基组蛋白乙酰基转移酶Elongator能通过乙酰化微管蛋白，调控大脑皮层神经分支的迁移与形成。

Only then, can your cerebellums acquire the ability and power to command your small muscles to be engaged in harmonious movements by this hand nimbly, so that nerves communication channels necessary for such movements can be created.

其中的道理太简单了，要想用另一只手也同样很灵巧地使用筷子，只有通过练习、练习、再练习，才能形成小脑灵活地驾御生手小肌肉群协调动作的能力，建立夹菜所需要的神经联系。

Using eight known specimens of Fenhuangshan copper deposit, and putting its itto the network to learn, after more than 5000 iterativenesses, the network constringed and the error of output reached the requiration of precision.

矿体的形成与定位也是各种控矿因素耦合作用的结果，其耦合机制是线性函数难以拟合的，而BP人工神经网络的高度非线性拟合功能恰好能解决这一问题。

This imbalance depletes the pool of neuronal progenitors so that fewer cells can be made to build a complete and functional cortex.

这种不平衡使很少的神经祖细胞群就能产生并形成完整的且有功能的大脑皮质。

As muscles are innervated and begin to function, they exert a pull upon the boned to which they are attached and thus help shape the internal structure of this tissue.

当肌肉该使受神经约束，该使运作时，会运作在附著的骨头上，帮助使其形成内部组织。

The machanism may be that 7-NI inhibits activation of nNOS and decreases the number of overproducing neuronal NO in hippocampal during anoxia,so the ability of hippicampal slices against anoxic injury is increased and neurotoxic role of neuronal NO during anoxia is definite.

作用机理可能是7-NI抑制nNOS活性降低缺氧后海马神经原性NO的过多形成，从而提高海马脑片抗缺氧损伤的能力，更加明确了缺氧早期神经原性NO的神经毒性作用。

These changes, which depend on transcription and translation, include formation of motile presynaptic filopodia, elaboration of undifferentiated varicosities, and potentiation of spontaneous release frequency.

这种依赖转录和翻译的变化包括动力型突触前丝状伪足的形成和未分化神经膨体的修饰，以及自发释放频率的增强等。

The author has made researches on the social occurrence of man's functions of symbols and finds out that the occurrence of babies' self-consciousness is achieved under the conditions babies have possessed dualistic attention-----that is to say, attention can concentrate on two signal sources at the same time or it has two focus of attention.

论文摘要本文作者对人的符号功能的社会系统发生进行了研究，发现婴儿自我意识的发生是在婴儿已经具有二元注意--即注意力能同时集中到两个信号源或者说有两个集中点--的条件下实现的，这种并行性注意使一种称为反身性条件反射建立成为可能，并形成了具有符号功能的神经机能组织--二联体。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。