丙型肝炎(丙肝)是由丙型肝炎病毒(hepatitis C virus,HCV)引起的一种常见传染病,2019年全球有慢性HCV感染者5800万人,29万人死于HCV感染引起的肝硬化,2019年全球新发感染者约150万人.丙肝危害严重,早发现、早诊断、早治疗在其中起到重...丙型肝炎(丙肝)是由丙型肝炎病毒(hepatitis C virus,HCV)引起的一种常见传染病,2019年全球有慢性HCV感染者5800万人,29万人死于HCV感染引起的肝硬化,2019年全球新发感染者约150万人.丙肝危害严重,早发现、早诊断、早治疗在其中起到重要意义.因此,本文作者总结了丙肝的诊断、治疗方法.丙肝的诊断需结合流行病学史、临床表现和实验室检查等进行.应根据基因型、肝脏损伤严重程度、适应症和禁忌症等选择合适的方案.展开更多
本文采用Friedman检验判断河南省空气质量是否有季节差异,并利用镝数图表数据可视化工具制作出河南省空气质量地区分布图来研究河南省大气污染物和三种气象因素的年际变化特征,最后通过内梅罗指数法探究出对空气质量影响最大的指标。针...本文采用Friedman检验判断河南省空气质量是否有季节差异,并利用镝数图表数据可视化工具制作出河南省空气质量地区分布图来研究河南省大气污染物和三种气象因素的年际变化特征,最后通过内梅罗指数法探究出对空气质量影响最大的指标。针对文章中的内容和结果,该研究方式具有实践意义。通过研究发现,时间上,河南省AQI年际变化呈倒“V”形,AQI整体存在季节性差异;空间上,河南省AQI总体呈现“北高南低”的空间分布特点。六大空气污染物指标的浓度呈现逐年降低的趋势。通过内梅因指数法探究得出CO对AQI的影响最大。In this paper, Friedman test is used to determine whether there are seasonal differences in air quality in Henan Province, and regional distribution map of air quality in Henan Province is made by means of dysprosium chart data visualization tool to study the characteristics of the annual changes of air pollutants and three meteorological factors in Henan Province. Finally, Nemero index method is used to explore the index that has the greatest impact on air quality. According to the content and results in the article, this research method has practical significance. Through the research, it is found that the annual variation of AQI in Henan Province presents an inverted “V” shape in terms of time, and the overall AQI has seasonal differences. In terms of space, AQI in Henan Province generally presents a spatial distribution characteristic of “high in the north and low in the south”. The concentration of the six air pollutant indicators showed a decreasing trend year by year. Through Nemaine index method, it is found that CO has the greatest influence on AQI.展开更多
文摘丙型肝炎(丙肝)是由丙型肝炎病毒(hepatitis C virus,HCV)引起的一种常见传染病,2019年全球有慢性HCV感染者5800万人,29万人死于HCV感染引起的肝硬化,2019年全球新发感染者约150万人.丙肝危害严重,早发现、早诊断、早治疗在其中起到重要意义.因此,本文作者总结了丙肝的诊断、治疗方法.丙肝的诊断需结合流行病学史、临床表现和实验室检查等进行.应根据基因型、肝脏损伤严重程度、适应症和禁忌症等选择合适的方案.
文摘本文采用Friedman检验判断河南省空气质量是否有季节差异,并利用镝数图表数据可视化工具制作出河南省空气质量地区分布图来研究河南省大气污染物和三种气象因素的年际变化特征,最后通过内梅罗指数法探究出对空气质量影响最大的指标。针对文章中的内容和结果,该研究方式具有实践意义。通过研究发现,时间上,河南省AQI年际变化呈倒“V”形,AQI整体存在季节性差异;空间上,河南省AQI总体呈现“北高南低”的空间分布特点。六大空气污染物指标的浓度呈现逐年降低的趋势。通过内梅因指数法探究得出CO对AQI的影响最大。In this paper, Friedman test is used to determine whether there are seasonal differences in air quality in Henan Province, and regional distribution map of air quality in Henan Province is made by means of dysprosium chart data visualization tool to study the characteristics of the annual changes of air pollutants and three meteorological factors in Henan Province. Finally, Nemero index method is used to explore the index that has the greatest impact on air quality. According to the content and results in the article, this research method has practical significance. Through the research, it is found that the annual variation of AQI in Henan Province presents an inverted “V” shape in terms of time, and the overall AQI has seasonal differences. In terms of space, AQI in Henan Province generally presents a spatial distribution characteristic of “high in the north and low in the south”. The concentration of the six air pollutant indicators showed a decreasing trend year by year. Through Nemaine index method, it is found that CO has the greatest influence on AQI.
