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简介：这份报纸使用中国列出的公司的金融数据探索在债结构之间的关系，它作为贸易信用的比率被测量存贷款，和未来股票价格碰撞风险。当好机构的环境减少这种积极关系时，实验结果证明到银行贷款的贸易信用的比率断然与公司特定的碰撞风险被联系。就公司所有权类型而言，另外，作者发现在债结构和碰撞风险之间的积极关系在SOEs是更重要的。

简介：AbstractPurpose:Motorcycle accident is a major cause of road traffic injuries and the motorcyclists are considered as vulnerable road users. The present study aimed to determine the epidemiological characteristics of fatal motorcycle crashes in Iran.Methods:In this cross-sectional study, a total of 28,356 motorcycle traffic fatalities registered in the Legal Medicine Organization of Iran were analyzed during the period between March 2011 and March 2017. The examined variables included demographic characteristics, helmet use, crash mechanisms, crash location, position state, type of counterpart vehicle, cause of death and place of death. In the study, road traffic mortalities involving drivers and/or passenger of motorcycles were included. Cases or events registered without these conditions were excluded from the study. To analyse the data, SPSS statistics 25 and GraphPad Prism 8 softwares were used.Results:Of the 122,682 fatal traffic injury cases, 28,356 (23.1%) were motorcycle users, of whom 95.3% were male and 4.7% were female. Most of the motorcycle fatalities belonged to the age group of 18-24 years (29.1%). Head trauma was the major cause of death (59.0%). Also, the overall proportion of safety helmet use among motorcycle crash victims was estimated at 37.4%. Most of the road traffic crash cases (46.8%) happened out of city and half of people (49.9%) died in hospital. About 77.4% of the victims were motorcycle riders and 21.1% were pillion passengers. The highest rate of mortality belonged to the self-employed (38.4%) and then workers (21.8%) and students (10.2%). In addition, most fatalities occurred in people with low education (77.5%) and the least occurred in university graduates (5.5%). Among 31 provinces of Iran, Fars had the highest (9.3%) occurrence rate and Kohgiluyeh and Buyer-Ahmad had the lowest (0.5%). Most of the crash mechanisms were due to motorcycle-vehicle crashes (80.2%), followed by rollover (9.8%).Conclusion:Comprehensive public education and special rules are needed to reduce the rate of deaths in motorcycle crashes.

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