水平

The main negative environmental factors have variation among different sports events.

对影响我国高水平运动员出国参赛的环境因素分析结果显示，因所参加的具体赛事不同、项目不同、运动员的个人特点，出国参赛环境因素对运动员的竞技状态或参赛结果可能是促进作用、阻碍作用；对我国高水平运动员出国参赛竞技状态影响较大的劣性环境因素是：语言、时差、旅途、饮食、赛期饮食、赛期语言，对各项目运动员出国参赛竞技状态影响较大的劣性环境因素不尽相同；出国参赛环境因素对运动员竞技状态的影响呈阶段性变化的趋势；影响我国高水平运动员的主要劣性环境因素在项群上、性别上、比赛经验上呈明显差异。

Cell biology, which aims to study the cells, is one of the basic topics in life sciences, and it researches on the structure and function of cell and organelle from the cellular, sub-micron and molecular level.

其中，细胞生物学是生命科学的基础学科之一，它是以细胞为研究对象，从细胞的整体水平、亚显微水平以及分子水平等三个层次，研究细胞和细胞器的结构和功能。

The statistical difference of proinsulin rather than HOMA index was found among the patients of various Gensini's score group (Gensini's score was examined as a categorical variable classified by tertile values) and significantly stenosed vessels group by means of the results of analysis of covariate variance after adjusting for age, sex and body mass index (p＜0.05), and the partial correlation coefficient between proinsulin level and Gensini's score, the number of significantly stenosed vessels after adjusting for age, sex and body mass index was 0.3156 (P＜0.01) and 0.2752 (P＜0.05) respectively. Multivariate linear regression analysis indicated that the level of proinsulin was positively correlated with the Gensini's score (P＜0.01). The results of multivariate stepwise Logistic indicated that the proinsulin was the independent risk factor for the coronary heart disease, and the odds ratio (95％ confidence interval) was 2.268 (1.253～4.105)(P=0.007), however, the HOMA was refused by the final model.

年龄、性别与体重指数为控制变量的协方差分析结果显示，胰岛素原的水平在不同的Gensini评分组、冠状动脉病变血管数分组中分布有统计学差异(P＜0.05)，偏相关分析示胰岛素原的含量与Gensini评分与病变血管数显著正相关，其偏相关系数分别为0.3156(P＜0.01)与0.2752(P＜0.05)，而HOMA指数与两种评分的相关未有统计学意义；多因素线性逐步回归分析结果示胰岛素原水平与Gensini评分独立正相关(P＜0.01)；多因素Logistic回归分析显示，胰岛素原的水平为冠心病的独立的危险因素，其OR值及其95％可信区间为2.268(1.253～4.105)(P＜0.01)，HOMA指数未进入模型。

Young peacock and 45 breeding peafowl were chosen and divided randomly into 3 groups respectively in triplicate for each group. The trial was designed in a single factor of 3 levels according to ME content in diets. The ME contents in diets were 11.09MJ/kg、11.53 MJ/kg and 12.24 MJ/kg for young birds and 11.33 MJ/kg、12.21 MJ/kg and 12.85 MJ/kg for breeding birds respectively.

试验选取2月龄蓝孔雀肉鸟90只，种鸟45只，各分为3个组，每组设3个重复，以能量水平为试验因子，肉鸟日粮代谢能水平为：11.09MJ/kg、11.53 MJ/kg和12.24 MJ/kg，种鸟日粮代谢能水平为11.33MJ/kg、12.21 MJ/kg和12.85 MJ/kg，饲养期为5个月。

Concerning the main difficulties the PEDEs encounter,the paper firstly establishes a competitiveness index system of Chinese PEDEs,and then makes an empirical study of several PEDEs from three dimensions of the index system: service level,timing level and price level,finally,suggestions are put forward to help the PEDEs foster their competitiveness.

文章在考虑快递产业基本特征的前提下，重点从民营快递企业目前面临的主要问题着手，建立了中国民营快递企业的竞争力指标体系，并在此基础上从服务水平、时效水平、价格水平三个方面实证分析了若干民营快递企业的竞争力，最后对民营快递企业如何培育竞争力提出了若干建议。

After treatment, the blood serum prolan level of experimental group dropped obviously, the estrogen level rised to the levels of graafian follicle early time,the body weight, the blood fats and the hepatorenal function change had no statistical significance.

试验组用药后血清促卵泡素水平显著下降，雌激素水平上升至卵泡早期水平，体重、血脂及肝肾功能变化均无统计学意义。

(1)The levels of MCP-1 and VEGF'levels was significant increased in CHD patients,Compared with controls, It was implicated that they might take part in the actions of informing atherosderotic plaques;(2)The serum level of MCP-1 and VEGF were elavated step by stey among the group of controls、SAP、UAP、AMI, It was thought they might develop the matter on the stability of atherosderotic plaques;(3)The serum level of MCP-1 and VEGF were positive correlated with 7-TIMI risk score, It prompt that MCP-1 and VEGF was the reactiveness markers of coronary artery process ,and developed the risk to major acute cardiac events.

(1)血清MCP-1、VEGF水平在冠心病患者中显著升高，提示MCP-1、VEGF可能在促进冠状动脉粥样硬化斑块形成的过程中起重要作用；(2)血清MCP-1、VEGF水平在对照组、各冠心病亚组(SAP、UAP、AMI组)之间逐级升高，提示MCP-1、VEGF可能增加了冠状动脉粥样硬化斑块的不稳定性；(3)联合检测MCP-1、VEGF的灵敏度\特异度上升，证明临床上联合检测二者血清指标意义大；并且血清MCP-1、VEGF水平和7-TIMI积分呈正相关性，7-TIMI积分高的患者血清MCP-1、VEGF水平也高，说明它们能作为冠脉病变的活动性标志物，可能成为评价主要心血管恶性事件的危险性的相关指标。

Methods Forty women and their babies (40) were enrolled in this study. Placental tissues were assayed for leptin mRNA by reverse transcription/polymerase chain reaction, and assayed for the obese gene protein leptin by Western-blot and immunohistochemistry. Blood was taken from the umbilical cord of the babies at delivery. Serum leptin was measured by radio-immunoassay. Neonatal anthropometric measurements were recorded within 48 hours after delivery.

方法在40例产妇分娩时采集胎盘与脐血，采用逆转录聚合酶链反应检测胎盘肥胖基因mRNA相对表达水平，采用Western-Blot检测胎盘肥胖基因蛋白表达水平，采用免疫组化观察胎盘肥胖基因蛋白表达位点，采用放射免疫法检测脐血瘦素水平，采用Ponderal指数［PI=100×体重/身长3］估测新生儿营养状态。

Optical Time Domain Reflectometer, OTDR, an instrument used for measuring the characteristic of the light loss and fault location, which is one of the important and commonly used instruments during construction and maintenance or measurement of optical application system.

国外OTDR的技术指标已经达到很高的水平，但由于我国基础工业水平低、国外技术的封锁以及国内研发力量不足等因素，国产OTDR与国外仍有很大的差距，市场化水平也低，国内市场基本上被国外产品所垄断，因此很有必要对OTDR的测试理论、所用的关键技术等作深入系统的研究。

Because commercial banks have expected to prevent the losses at certain confidence level by using their own reserve for bad debts and capital at risk, commercial banks won't go bankrupt within certain confidence level. If the confidence level were a, the probability of bank failure is 1-a, so the recognition of deposit premium ratio should be performed based on 1-a of risk assets in commercial banks.

由于商业银行自身用损失准备金和风险资本来防范了一定置信水平内的损失，因此，在该置信水平内商业银行是不会破产的：如果一定置信水平为α，则银行破产的概率就为1—α，存款保险费率的确定就以商业银行风险资产的1—α倍为基础进行。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。