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These data indicated that changes of vascular smooth muscle contractile apparatus may play an important role in decreased vasoconstrictor responsivness of artery during simulated weightlessness.

本工作结果提示平滑肌收缩结构的变化在模拟失重所致动脉收缩反应性降低中是至关重要的。

Methods OECs were cultured in the olfactory bulb of newborn wistar rat. OECs suspension was infused into the lateral cerebral ventriculus of AE rats, intraperitoneal methyl-vitamine B12 associated with above OECs suspension in combined transpiantion group, and the saline with the same quantity was infused in pseudo-operation group. Afterwards, sport-function grade, histo pathological change were observed.

用新生wistar大鼠嗅球培养OEC,移植组将OECs悬液注入实验性变态反应性脑脊髓炎大鼠的侧脑室;联合移植组在侧脑室注入OECs的基础上,腹腔注入甲基维生素B12;假手术组按以上方法注入等量生理盐水;观察两组大鼠运动功能评分、组织病理学变化。

Mr. Wagoner said concerns about climate change and energy security could push significant adoption of alternative fuels and technologies.

瓦格纳表示,对气候变化和能源安全的担忧有可能推动替代性燃料和技术的大规模采用。

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。

Suitable for making concrete have no significant effect on workability.

土的水质量的变化对和易性没有重大影响。

The monotonic and cyclic shear tests of the interface between geotextile and gravel as well as geotextile drawing tests were conducted with the apparatus. The interface was found to exhibit strain-softening and obvious aeolotropic normal displacement which was affected by the normal stress.

剪切试验结果表明,粗粒土与土工布接触面出现了一定程度的应变软化,相对法向位移的变化受法向应力影响很大,并表现出异向性。

Angiectasis, permeability were increased , inflammatory cell were transuded; The cardiac muscle injury conditions after hypoxia 4 h were similar with hypoxia 2h group, appeared lipid droplet, implied the oxidative metabolism of lipid got obstacle started from then; The cardiac muscle injuried conditions were got little improvement in hypoxia 6 and 8 hours team, mitochondria were increased and aggregatived, normal cell junction, sarcomere contract weaked; in hypoxia 10h group , mitochondria were increased and aggregatived obviously, a few glycogenosome were assembled, transverse tubule were expanded, all the changes may be the adaption of Gansu zokors in the hypoxia tolerance process to 4% hypoxia extent gradually.

在4%严重低氧耐受过程中,甘肃鼢鼠心肌超微结构在2h组出现血管扩张,通透性增加,有炎细胞渗出,异染色质边集;4h组心肌损伤状况与2h组接近,出现脂滴,提示脂类的氧化代谢在此时开始发生障碍,6和8h组心肌损伤状况逐渐好转,线粒体聚集增多,细胞连接正常,肌小节收缩较前有所减弱;10组线粒体增多聚集,线粒体脊增粗更为明显,少量糖原颗粒聚集,脂滴较前有所减少,横小管扩张增大变粗,出现了与能量代谢有关的结构适应性变化。

Four anthryl lower aliphatic amine derivatives were synthesized, and DNA binding properties of these compounds were investigated by fluorescence and absorption spectra.

蒽的低级脂肪胺衍生物水溶性很好,不宜固定于PVC膜中,但它们可与核酸分子相互作用,其荧光光谱和吸收光谱发生明显变化。对于不同脂肪胺的衍生物,其作用结果不同。

However, analysis of DNA methylation level indicated that the total DNA methylation levels were not significantly different between diploid and autotetraploid. Autotriploid showed a trend of low DNA methylation level. It implied that the alterations of DNA methylation levels were not linear with the autopolyploidy level in watermelon.

有趣地是,二倍体与四倍体西瓜相比DNA甲基化水准却未发生大规模的调整,而三倍体西瓜显示出较为明显的低DNA甲基化水准趋势,表明西瓜同源多倍化过程中其基因组DNA甲基化水准变化与其倍性不成线性关系。

Objective: To compare the differences between homosexual and heterosexual men in the pattern of induced aversive emotion regulation.

目的:探索男性同性恋和男性异性恋与负性情绪调节相关的大脑功能变化,比较两组之间调节模式的差异。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

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三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。