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法国人群的引产调查:COCON研究结果
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作者 Lelong N. Moreau C. +1 位作者 Kaminski M. 杨晓梅 《世界核心医学期刊文摘(妇产科学分册)》 2005年第6期58-58,共1页
Objective. The aim of this article is to describe conditions of abortions practices in France. Materials and methods. The study was based on the COCON survey. This survey was carried out among a representative sample ... Objective. The aim of this article is to describe conditions of abortions practices in France. Materials and methods. The study was based on the COCON survey. This survey was carried out among a representative sample of 2863 women aged 18 to 44 living in metropolitan France. Women were interviewed by telephone. The analysis was performed among a sub- sample of 320 women who had had an abortion between 1996 and 2000. Results were compared with those of the national notification of induced abortions. Results. Altogether, the way in which abortions were carried out was appropriate, but differences were observed according to the type of hospital: access to care was easier in the private sector; however a pre- abortion interview was less often carried out and a post- abortion interview less often proposed in the private sector. Besides, in both sectors, women were rarely allowed to choose the abortion technique, or the type of anesthesia in the case of a surgical abortion. Conclusion. The COCON study is the first population based survey describing the characteristics of care regarding voluntary abortion. It shows the persistence of differences in practices between the public and the private sectors. 展开更多
关键词 引产方法 cocon 私立医院 公立医院 医患交流 产时 描述法
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考虑多普勒参数的SAR影像距离—共面方程及其定位 被引量:8
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作者 程春泉 张继贤 +1 位作者 黄国满 张力 《遥感学报》 EI CSCD 北大核心 2013年第6期1444-1458,共15页
通过对合成孔径雷达(SAR)影像成像几何机理的分析,以传感器位置和姿态作为定向参数,构建了考虑多普勒参数的SAR影像距离—共面方程及基于该方程的SAR影像空中三角测量模型。以登封地区99景0.5 m分辨率机载非0多普勒SAR影像为试验数据,... 通过对合成孔径雷达(SAR)影像成像几何机理的分析,以传感器位置和姿态作为定向参数,构建了考虑多普勒参数的SAR影像距离—共面方程及基于该方程的SAR影像空中三角测量模型。以登封地区99景0.5 m分辨率机载非0多普勒SAR影像为试验数据,进行了单片定向、无控制点的自由网平差、稀少控制点的区域网平差及带有自检校参数的区域网平差等系列试验。与R-D模型相比,本文模型减少了定向参数的数目,实现了SAR影像与POS数据的联合平差处理,建立的带有自检校参数的SAR影像区域网平差模型,对提高稀少或无地面控制点条件下未进行(或低精度)几何定标SAR影像的区域网平差精度起到了显著作用。较少控制点条件下模型满足了丘陵和山区1∶5000/1∶10000航摄测图对空中三角测量精度的要求。 展开更多
关键词 SAR影像定位 距离-共面方程 区域网平差 空中三角测量 多普勒频率 外方位元素
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