查询词典 risk

Innovative Results】Based on study on colorectal cancer screening in Xiacheng district,the results have showed that①The CRC screening in urban area based on guideline established by our units had the same good results as in rural area.High risk factors questionnaire investigation had important role in CRC screening and it can make up the shortcomings of iFOBT and detect nonbleeding lesions,especially precancerous lesions such as adenomas and polyps;②Each high risk factor was sorted according to sensitivity and specificity for the first time among natural population in city.

通过对下城区大肠癌筛查的研究①首次证明来自于中小城市农村的大肠癌筛查方案对城市社区自然人群与中小城市农村的自然人群一样具有较好的检出效果，证明了问卷调查对大肠癌筛查的重要作用，能弥补iFOBT不足，发现其不能检出的包括不出血病变，尤其是腺瘤、息肉；②首次在城市社区自然人群中对各高危项目根据诊断的敏感度及特异度进行了排序。

Results Risk for lung cancer caused by exposure to nitrosoamine increased significantly after adjustment of nonoccupational risk factors (RR=271,with 95% CI of 132 to 557),with a significant doseresponse relationship between exposure to nitrosoamine and lung cancer.

结论（1）本文数据提示病例－队列分析因标准误较小、抽样更简便而优于巢式病例－对照研究方法；（2）亚硝胺暴露与肺癌之间有较确定的关系，但受到吸烟和经济状况等因素作用的修饰，需进一步研究

In this paper, statistical method of return and risk is discussed. Risks are divided into systematic and nonsystematic risk.

现在，风险的概念在经济学，尤其是金融经济学中是一个非常有影响力的词语。

As a result, quantile regression method is better than other methods in both measuring systematic risk and nonsystematic risk.

在度量非系统性风险方面，主要应用于度量市场风险，并与利用GARCH模型度量VaR的方法和历史模拟方法进行比较，通过后验测试，结果表明，分位数回归在模拟VaR序列方面更为准确些；而在系统性风险度量方面，无论是根据平均绝对离差指标还是方差指标来看，结果发现利用分位数回归计算的系数要优于普通最小二乘估计和M估计。

It consider that the conclusion of CAPM dont accord with stock pricing of china. Nonsystematic risk act important role. There is no remarkable relation between systematic risk and stock return.

文章认为我国现行证券市场的股票定价与CAPM的结论相悖：公司特征因素在我国股票定价中扮演着重要的角色，公司特征因素模型更适合描述中国股市的定价机制。

Credit risk can be affected by nonsystematic factors including corporate asset value,credit rating,default probability ,correlation,risk exposure and recovery ratio,meantime,it can be affected by systematic factors such as interest rate,commercial cycle and industry.

分析结果表明信用风险一方面受非系统性基本因素的影响，如公司资产价值、信用状况、违约概率以及相关性等，另外一方面也受到系统性宏观经济因素的影响，如利率、经济周期和行业因素等。其次是研究了信用风险的量化管理问题。具体方法是通过比较分析四种具有代表性的信用风险度量模型，包括CreditMetrics、CredirRisk+、KMV以及CreditPortfolioView等，目的是找到信用风险量化方法的统一框架，为度量信用风险建立一个合适的标准。

Early menarche, late menopause, or late 1st pregnancy increases risk. Women who have a 1st pregnancy after age 30 are at higher risk than those who are nulliparous.

初潮早，停经晚，或首次妊娠晚，均可增加癌症危险。30岁后怀第一胎的妇女，其危险性要高于未产妇。

Risk factors of mortality by univariate analysis were: outborn babies, resuscitation before admission, first born baby, low pH, high oxygen index, high alveolar- arterial oxygen tension gradient (AaDO2) at admission, high Of and AaDO2 at 2 hours after admission, shock, pneumothorax, asphyxia, pulmonary hemorrhage, persistent pulmonary hypertension of newborn, and renal failure. Logistic regression analysis showed asphyxia, pneumothorax and PPHN are the most important risk factors of mortality in MAS. How to diminish these events is the key point for reducing the mortality rate of MAS.

又变项分析显示，死亡危险因子包括院外出生婴儿，黑心诊时需急救，第一胎，刚入院时的Ph、OI、AaDO2，住院后2小时的OI、AaDO2，休克、气胸、室息、肺出血、新生儿肺动脉高压；回归分析则显示窒息，气胸及新生儿肺动脉高压是死亡的危险因子，如何减少这些事故，将是降低便吸入症候群死亡的重要因素。

And countries was 5. 4%. And the control rate was 2. 9%, in which that in cities was 4. 2% and countries was only 0.9%. From these data we knowed that three rate of hypertension very low. The traditonal risk factors of cardiovascular diseases including overweigh, fat, alcohol, high salt intake, hypokalemia, hypocalcemia of cardiovascular diseases and low animal protein intake have been known, but these factors only explained half of cardiovascular diseases. So, it is necessary to find out and recognize the new risk factors.

心血管疾病的传统危险因素（体重超重和肥胖、饮酒、膳食高盐、低钾、低钙、低动物蛋白质）已经早已被认识，在不同的地区和不同的人群也进行了样本量不同大小的流行病学研究和基础研究，但研究表明传统的危险因素只能解释50％的心血管疾病，仍有50％的心血管疾病不能用传统的危险因素来解释，因此有必要认识和寻找新的危险因素。

Build up the policy agriculture insurance system of science since can resolve the farmer to resist the risk power to lead the weak problem, and then make up to depend the shortage that the nation salvage causes the public finance pressure overweigh only, being advantageous to the aggressive that transfers the everyone to face, is a next and valid agriculture risk of the market economy condition to compensate the system.

建立科学的政策性农业保险制度既能解决农民抵御风险力量过弱的问题，又能弥补仅靠国家救助导致财政压力过重的不足，有利于调动各方面的积极性，是市场经济条件下一种有效的农业风险补偿制度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。