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So GSL in combination with choline can synergically reduce the impairment of learning and memory of AD model rats and the mechanism may be involved in enhancing the function of central cholinergic system.

表明 GSL和胆碱合用有协同改善AD模型大鼠学习记忆障碍的作用，其机理与协同提高ChAT活性，增强中枢胆碱能神经功能有关。

AD is characterised by decreased CSF concentrations of Abeta(42) and increased concentrations of tau.

AD的特点为脑脊液中Abeta(42)的浓度下降，tau蛋白的浓度升高。

Mehods: After making the AD models by Aβ(subscript 1-42), draw the whole brain or hippocampus of rats in ordinary group, model group, traditional Chinese Medicine prevention group, traditional Chinese Medicine treatment group and positive control-group, and detect the biochemical marks of T-AOC, MDA, NO, NOS, chAT, TChE.

用凝聚态Aβ(下标 1-42)制备出AD模型后，取正常组、假损伤组、模型组、中药预防组、中药治疗组、阳性药物对照组各组大鼠的全脑或海马检测T-AOC、MDA、NO、NOS、chAT、TchE等指标。

Neural toxity in vivo can be induced exactly by co-injection of coacervated-type A B MO and IBA in the hippocampus , which could be partlymodeled behavior and pathological characterization of AD.

凝聚态Aβ_(1-40)与IBA联合大鼠海马注射具有明确的在体神经毒性作用，可以较好的模拟AD行为和病理表现。

Sections from frontal lobe, occipital lobe, striatum and hippocampus of normal subjects and sections from hippocampus of AD patients were used in hematoxylin eosin, Lox Fast blue, toluidine blue stains and ulex europaeus agglutinin immunostaining.

应用荆豆凝集素(ulex europaeus agglutinin， UEA)免疫组织化学及甲苯胺蓝等染色观察正常增龄病例额叶、枕叶、壳核、海马及AD患者海马的神经元、毛细血管形态改变，应用图像分析技术测算各部位神经元与毛细血管密度比值并分析其与年龄之间的相关性。

An analytical model for performance evaluation of unslotted spread spectrum ad hoc networks is presented by introducing a queuing system and a Markov chain. The model is used to derive packet success probability and expressions for calculating throughput and delay.

通过引入排队系统和马尔可夫链建模方法，建立非时隙扩频ad hoc网络理论分析模型，导出了数据分组成功传输概率，得到了系统吞吐量和时延性能表达式。

A major challenge of the heterogeneous wireless networks is how to jointly utilize the resources of different radio access technologies in an efficient manner. Because of the different system capacities of BS/AP and ununiformity of traffic distribution in different cells, quantities of new calls may be blocked in the overloaded cell in some hot spots; whereas its neighboring under-loaded BS/AP have superfluous bandwidth. In order to raise resource utilization of heterogeneous networks, several novel load balancing strategies are proposed, which combine the call admission control and multi-hop routing protocol of ad-hoc network.

异构无线网络的主要挑战是如何高效利用各种接入网的无线资源，针对异构无线网络基站或AP的容量差异及业务分布不均，导致通信热点地区的新呼叫因负载过重大量阻塞，而相邻轻负载小区却有容量盈余的现象，本文提出了几种联合呼叫接纳控制及ad hoc网络多跳路由算法的负载均衡策略，以提高整个异构网络的资源利用率。

Wireless Ad Hoc networks are self-organized without any immobile basic communication facilities, whose characteristics are wirelessness, multi-hop and mobility.

无线Ad Hoc网络，在没有固定基础设施的情况下，由具有无线通信功能的节点自组织形成，它的主要特点是无线、多跳和移动。

The article basically elaborates ADAM familial the relation with tumor. 1ADAM gene structure and functional ADAMs are familial it is an important metallic albumen enzymatic familial, belong to albumen of zincic dependence metal enzymatic super- familial, cent is two groups:っ狝 DAMs and secrete model AD-AMTSs.

本文主要阐述ADAM家族和肿瘤的关系。1ADAM基因结构和功能ADAMs家族是1个重要的金属蛋白酶家族，属于锌依靠性金属蛋白酶超家族，分为两组：膜锚ADAMs和分泌型AD-AMTSs。

More than 60% of Caucasian patients with AD carry at least one APOE 4 gene.

超过60%的高加索AD患者携带至少一个APOEε4基因。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。