皮层

objective to study mri diagnostic value on multiple sclerosis.methods mri examination data of 31 patients with multiple sclerosis were analysised retrospectively.results total 184 lesions were detectived in 31 patients.most lesions were located on white watter area beside the lateral ventricle,and a few lesions were located on the spinal cord,cerebellum,brain stem and corpus callosum.the shape of lesion can be circle or ellipse.the lesion showed as slightly long t1 and long t2 signal.the acute stage lesions can have enhancement.conclusions ms have characteristic findings on mri image.mri can show the patholoic changes,and provide strong evidence for clinic diagnosis of multiple sclerosis.

摘 要］目的：探讨多发性硬化（muliplle sclerosis，ms）的mri特征表现及其诊断价值。方法：回顾分析31例临床诊断为ms患者的mri检查资料。结果：31例共发现病灶184个，病灶于侧脑室旁白质区、半卵圆中心及皮层下区最多见，其次见于脊髓小脑、脑干及胼胝体，部分可见视神经受累，病灶呈卵圆形或圆形稍长t1、长t2信号，矢状位像见病灶与侧脑室垂直，急性病灶增强扫描有的可呈结节状、环状或斑点状强化。结论：在mri图像上ms有特征性表现，mri能反应ms病理变化，为临床诊断ms提供可靠依据。

From media transfer to the cortex tissue, and then to the xylem vessel

1由介质迁移到根系皮层组织，再运送到木质部导管

The xylem and the cortex ratio in the stem structure could be used as one of the morphological structure indexes to determine its cold resistance.

可以把木质部和皮层在茎的结构中所占比率作为抗寒性的形态结构鉴定指标之一。

The biomass of trees and the calcium content and accumulation of the cortex and the xylem were studied in this paper.

对幼果期矮化富士苹果树体各器官及其皮层、木质部的生物量、钙含量和钙累积量进行了研究。

Efficacy: It contains proteins and vitamin A, B, C, E, which could moisturize and nourish skin, comprehensively activate oxygen-absorbing system of cells, improve anti-oxidation ability of skin, and build defense system for skin. Rich nourishments such as olive polyphenol can penetrate into dermis, accelerate elastic fibers and collagen to generate, replenish abundant water and nourishments, intensively remove aging signs of skin, and make skin firm, smooth, stretchy and youthfully luminous.

功效：富含蛋白质和维他命A、B、C、E，具有保湿和美肤双重功能，全面激活细胞吸氧系统，提高皮肤抗氧化能力，为皮肤建立周全地防卫系统，同时丰富的橄榄多酚等营养成份，能深入皮肤真皮层，促进弹力纤维与胶原蛋白合成，补充大量水分及营养，强力纠正皮肤老化痕迹，令肌肤紧实、光滑紧致、富有弹性，重现青春光彩。

Acanthosis and imperceptible stratum corneum have also been discovered within the epidermis.

表皮层内发现棘皮层增生的现象与不明显的角质层。

Methods Rat embryo dermal fibroblasts were cultivated on regenerated silk fibroin films in vitro adherently. The effect of regenerated silk fibroin films on morph, activity and growth of cells by viable cell counts and MTT colorimetric assay was observed.

采用静置贴壁培养法在再生丝素膜上体外培养鼠胚真皮层成纤维细胞，并用活细胞计数法及MTT比色法观察再生丝素膜对细胞的形态、功能和生长的影响。

There were some important discovery in structure character as the follows: in sarcotesta that materials making experiment, all possessed the structure of bandshape and like primary thickening meristem; sarcotesta possessed amphivasal vascular bundle and the vascular bundle that xylem distribute in two sied of phloem on inside and outside were discovered; new structure patterns of root that possessed more plentiful secondary cortex etc.

其中，发现外种皮中均具明显的似初生增厚分生组织的带状结构；且发现在外种皮的组织中具有双木维管束及周木维管束，发现了苏铁科植物根具较丰富的次生皮层等新的结构形式；在对比材料鳞秕泽米铁的羽片中发现了导管，这些在苏铁植物方面过去均未见有报道。

On the first day after exposure these changes gradually expanded to amygdaline nucleus cluster and piriform cortex.

暴露后1d，上述变化逐渐扩展至杏仁核簇和梨状皮层。

N perifocal tissue intracerebral hemorrhage there were rarefaction neuron,cell spaces augmentation,cell diminution,distinct demarcation of cell membrane and surrounding,and we discovered a lot of degeneration and necrosis nerve cells,cell body collapsed,pycnosis anachromasis,nucleoli disappeared. In EPO group we discovered that center area of hemorrhage shinked,nerve cells of degeneration and necrosis decreased in perifocal tissue,majority cells morphous were normal and pathological changes were light.

CH对照组在术后皮层出血中心无神经元，仅见少量胶质细胞，细胞间质空泡样改变；出血边缘区神经元稀疏，细胞间隙增大，细胞缩小，胞膜与周围分界清楚，并可见大量变性及坏死的神经细胞，表现为胞体皱缩，核固缩深染，核仁消失。rhEPO治疗组出血中心区变小，边缘区神经细胞变性坏死减少，多数存活细胞形态相对正常，病变较轻。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。