查询词典 Cortex

Chinese reading dyslexia ; children ; working memory ; left dorsolateral prefrontal cortex ; regional cerebral blood volume; functional near-infrared imaging

汉语阅读障碍；儿童；工作记忆；左前额叶；局部脑血流量；功能性近红外光学成像

In monkeys, the supplementary eye field in the dorsomedial frontal cortex is involved i n producing eye movements, but its precise function has not been clarified.

在电脑屏幕中央先出现一个小点，一旦猴子注视这个小点，点就消失并在屏幕四周的某一地方重新出现，要是猴子将视线转移到这个新出现的点，它将得到果汁作为奖赏。

Results A dense accumulation of fos and jun positive neurons exhibited in the FC, temporal cortex, CA1, DG, PVN, the supraoptic nucleus and the dorsomedial nucleus.

结果 两种方式应激结束后3h，脑皮层的额叶和颞叶、海马的CA1和DG及下丘脑的PVN、视上核、背内侧核均有较强的c-fos和 c-jun表达。

Following brain stem injury,the number of GFAP-positive astrocytes in cerebral cortex and pervent-ricular area,dorsomedial and ventro-medial pafts of midbrain at 30 min antemortem,and in periventricular area,dorsomedial part of pens,dorso-medial and ventro-medial part of medulla oblongata at 60 min antemortem.

采取针刺法造成实验大白鼠脑干损伤，用免疫组织化学LSAB法检测大脑、中脑、桥脑及延髓等不同部位脑组织中胶质原纤维酸性蛋白的改变。结果发现，生前损伤30min，大脑顶部灰质及中脑腹例中央部的GFAP阳性星形胶质细胞数目增多；生前损伤60min，除大脑顶部灰质及中脑腹侧中央部外。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

UltrastructureAfter the formation of resting cyst in Urostyla grandis, the cyst wall is composed of three layers named from outside to inside: ectocyst, endocyst, and granular layer. Ciliary shaft and microtubule are absorbed by cortex , except for part of the kinetosome.

超微结构大尾柱虫在形成休眠细胞后，所特化出的包囊壁在形态学上可分为三层，从外向内依次是外层壁、内层壁和颗粒层，纤毛杆和微管结构都已被皮层吸收，仅残留部分毛基体。

Transplanted NSCs can survive for long time and differentiate into neurons in the chitosan porous scaffold within the cerebral cortex lesion of rats with TBI, which can improve the cognitive function of rats. Ectogenic NGF can accelerate all these changes.

大鼠TBI后移植的外源性NSCs可以在脑损伤区壳聚糖载体中长期存活并向神经元分化，可以改善大鼠的认知功能；NGF对其具有促进作用。

The cells expressing nAchR clearly decrease in the areas of CA1 and cortex of rats when their fimbria/fornix is transected, but the cell number increases significanly if ectogenic estrogen is added. The change in nAchR is closely relative with AD whose pathological course can be influenced by the intervention of estrogen.

穹隆海马伞切断组大鼠脑内海马CA1区、皮层区nAchR的阳性细胞显著减少，补充外源性雌激素治疗后，上述各脑区内的nAchR表达显著增加。nAchR的变化与AD的病理变化过程密切相关，补充雌激素可以干预这种病理过程。

Third, it has a discussion on the development of modern and traditional artificial neural network technology and their application in image processing. It summaries that the model of the Pulse-coupled neural network based on Elkhorn's model of the cat visual cortex was constructed according to the mammalian vision systems. The nonlinear modulation property, which is a generic and pervasive biological pulse-coupling mechanism, is used in the construction of PCNN. So, PCNN finds many applications in image processing, including segmentation, edge extraction et al. As all known, the performance of the image segmentation depends not only directly on the adjustment of PCNN parameters and the statistical properties of image but also on the cyclic iteration times N of PCNN. If the parameters have been properly set, it turns out to be essential to select a suitable criterion to determine N.

回顾了神经网络技术的现状，指出传统人工神经网络只利用了生物神经元有限的属性进行模型构建，而90年代产生的脉冲耦合神经网络充分利用了哺乳动物视神经网络特有属性，其神经元模型除了考虑生物神经元特有的线性相加、兴奋与抑制属性外，还考虑到生物神经元特有的非线性相乘调制耦合特性；考虑了哺乳动物视神经系统视野受到适当刺激时，相邻连接神经元同步激发产生35Hz～70Hz振荡脉冲串特性等，所以PCNN网络模型更靠近真实生物视觉特性，特别是哺乳动物视神经网络，特别适合计算机图像处理应用，尤其在生物细胞图像分割、图像平滑、降噪及图像中目标的分类、计数等方面的研究。

These findings were consistent with the results of E20 cerebral cortex. iNOS was detected in E14 brain and There were no evidence changes of expression of iNOS in the encephalocoele group compared with the control group.

在Western blot分析中，发现与对照组比较，E14脑膨出组胎鼠大脑皮质中nNOS蛋白表达明显减少，eNOS蛋白表达水平明显增加，与E20结果相一致；在E14胎鼠大脑皮质中检测到iNOS蛋白微量表达，但脑膨出组与对照组比较无明显差异，E20胎鼠大脑皮质中未检测到iNOS表达。

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。