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Our results show that low doses of chronically and intragastrically administered rotenone induce PD pathology in all the above-mentioned nervous system structures in wild-type mice.

我们的结果表明，低剂量的长期和灌餵鱼藤酮诱导帕金森病理学所有上述神经系统结构，野生型小鼠。

A prediction model has been proposed to deal with threshold voltage shift as a function of 1MeV neutron flux and gate oxide thickness, and to deal with room-temperature annealing of threshold voltage shift induced-by 〓Coγ as a function of electric field and gate oxide thickness. The commonness and individuality of MOS device degradation between hot-carrier effect and ionizing radiation were investigated. The dependence of substrate current, gate current and threshold voltage shift due to hot-carrier on gate oxide thickness were simulated with MEDICI-2D simulator. The photocurrents of PN junction and bipolar transistor were studied. Their transient responses on varied bias voltages, pulse durations and absorbed doses were simulated. The influences of NPN base width on base and collector photocurrents were investigated. We also studied 1MeV neutron displacement damage in PN junction, and calculated reverse current leakage under the neutron flux of 2. 67×10〓 per square centimeter. 3 The study of nondestructive screening method for MOS radiation tolerance A theoretical and experimental study of nondestructive screening methods for radiation tolerance of nMOS and pMOS were firstly fulfilled. We determined the informative parameters pertinent to the method and proposed how to deal with experimental data and verify obtained results statistically, as well as make the required steps for nondestructive screening. Based on the experimental data of 180 samples of discrete pMOS devices, the relation between sample quantity and correlation coefficient, screening equation, and other significant results were obtained from the threshold voltage shifts of pre-and post-irradiation samples.

二、分立器件电离和位移辐射损伤响应研究在国内首次开展了电离辐射引起的氧化层阈值电压漂移和退火理论研究，编程计算了1MeV中子引起的MOS器件阈值电压漂移与中子通量及栅氧厚度的关系，计算了〓Coγ光子引起的阈值电压漂移及退火的时效曲线与纵向电场和栅氧厚度的关系等，对评估MOS型集成电路电离损伤和加固方法研究，以及论文中开展的MOSFETs无损筛选方法研究奠定了基础；分析了MOS器件热载流子损伤效应与辐射电离损伤效应之间的异同性，利用二维模拟软件MEDICI-2D模拟了衬底电流和栅电流，在不同栅氧厚度下随栅压的变化曲线，计算了热载流子效应造成的阈值电压漂移，研究结果对当前存在的以热载流子效应研究取代电离辐射损伤实验研究的设想，具有重要的参考价值；开展了PN结和双极晶体管电离光电流研究，计算了不同偏压、不同辐射脉宽和不同吸收剂量下PN结光电流的瞬时响应，计算了不同辐射脉宽下NPN晶体管基极电流和收集极电流的瞬时响应，以及基区宽度对NPN晶体管光电流的影响，研究结果对双极器件抗电离辐射损伤响应及加固方法研究具有重要意义；在国内首次开展了器件位移损伤的理论研究，分析了辐射产生的缺陷对电性能的影响，计算了注量为2.67×10〓cm〓的1MeV中子产生的缺陷对PN结反向电流的影响。

Objective:To investigate the effects of different doses of carbachol on gastric emptying and gastric blood flow in rats with scald injury.

目的：探讨不同剂量卡巴胆碱对烫伤大鼠胃血流量和胃排空功能的影响。

This is due to competition between crosslinking, chain scission and decomposition in high radiation doses.

化学稳定性测试表明EPDM纳米复合材料的吸湿率比相应的传统EPDM复合材料以及未填充粘土的EPDM要低。

However, there were no difference in the secretory rates of Aloe preparation and placebo-treated rats at the same doses.

然而，在以上实验中使用相同剂量的芦荟制剂和安慰剂，两者对胃酸的分泌却没有差异

Objective:To determine the effects of different doses of midazolam and fentanyl on combined spinal-epidural anesthesia and sedation.

目的：观察不同剂量咪达唑仑加芬太尼用于腰硬联合麻醉镇静的临床效果。

Methods: According to the sedimentation rate, controlling process was chosen for different doses of medicine.

根据颗粒沉降速度的计算结果对不同剂型药物的生产工艺进行控制。

Effects of various doses of 1,2,4-trichlorobenze on seed germination and seedling growth of soybean were studied.

在实验室人工控制条件下，研究了不同浓度 1，2 ，4 三氯苯胁迫对大豆种子萌发和幼苗生长的影响。

Drugs: to breast-feeding mother, even though most of the drug in normal doses, do not let your baby be affected, but still recommends breast-feeding mother in self-medication, they have to take the initiative to tell doctors they are breast-feeding situation, to doctor for medications taken, and select a shorter duration of the drug, reaching the amount of drugs through the milk at least.

药物：对哺乳妈妈来说，虽然大部分药物在一般剂量下，都不会让孩子受到影响，但仍建议哺乳妈妈在自行服药前，要主动告诉医生自己正在哺乳的情况，以便医生开出适合服用的药物，并选择持续时间较短的药物，达到通过乳汁的药量最少。

Methods Forty natural senescent rats were randomly divided into four groups:control group,low,middle and high doses of high germanium ganoderma group.

40只自然衰老大鼠随机分成对照组、高锗灵芝低剂量组、中剂量组和高剂量组。

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。