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On attitudes about colorectal cancer screening among gastrointestinal specialists and general practitioners in the Netherlands

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World Journal of Gastroenterology 2006年第32期12卷 5201-5204页

作者： JS Terhaar sive Droste GDN heine ME Craanen h boot CJJ Mulder Department of Gastroenterology and hepatology VU University Medical Centre AmsterdamThe Netherlands Department of Gastroenterology and hepatology Antoni van Leeuwenhoek hospital AmsterdamThe Netherlands

AIM： To find out whether there are differences in attitudes about colorectal cancer （CRC） screening among gastrointestinal （GI） specialists and general practitioners （GPs） and which method is preferred in a national screening program METhODS： Four hundred and twenty Dutch GI specialists in the Netherlands and 400 GPs in Amsterdam were questioned in 2004. Questions included demographics, affiliation, attitude towards screening both for the general population and themselves, methods of screening, family history and individual risk. RESULTS： Eighty-four percent of the GI specialists returned the questionnaire in comparison to 32% of the GPs （P〈0.001）. Among the GI specialists, 92% favoured population screening whereas 51% of GPs supported population screening （P〈0.001）. Of the GI specialists 95% planned to be screened themselves, while 30% of GPs intended to do so （P〈0.001）. Regarding the general population, 72% of the GI specialists preferred colonoscopy as the screening method compared to 27% of the GPs （P〈0.001）. The method preferred for personal screening was colonoscopy in 97% of the GI specialists, while 29% of the GPs favoured colonoscopy （P〈0.001）. CONCLUSION： Screening for CRC is strongly supported by Dutch GI specialists and less by GPs. The major health issue is possibly misjudged by GPs. Since GPs play a crucial role in a successful national screening program, CRC awareness should be realized by increasing knowledge about the incidence and mortality, thus increasing awareness of the need for screening among GPs.

关键词： Colorectal cancer General practitioner Screening Colonoscopy Awareness

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对FAT32的分析

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微机发展 1999年第3期9卷 58-60页

作者：陈奇华南师范大学教育科学研究所

本文详细分析了ＦＡＴ３２系统主引导扇区和ＤＯＳ引导扇区中的引导程序和数据结构，描述该系统的引导过程，并导出该系统计算文件扇区位置的公式。

关键词： FAT DOS 系统引导操作系统数据安全 FAT32

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Modern pollen distributions in Qinghai-Tibetan Plateau and the development of transfer functions for reconstructing holocene environmental changes

Modern pollen distributions in Qinghai-Tibetan Plateau and t...

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中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： houyuan Lu~(a,*),Naiqin Wu~a,Kam-biu Liu~b,Liping Zhu~c,Xiangdong Yang~d,Tandong Yao~c,Luo Wang~a, Quan Li~a,Xingqi Liu~d,Caiming Shen~e,Xiaoqiang Li~f,Guobang Tong~g,hui Jiang~h aKey Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China b Department of Oceanography and Coastal Sciences,Louisiana State University,Baton Rouge,LA 70803,USA cInstitute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100085,China d State Key Laboratory of Lake Science and Environment,Nanjing Institute of Limnology and Geography,Chinese Academy of Sciences,Nanjing 210008,China e Atmospheric Sciences Research Center,State University of New York,Albany,NY 12203,USA f Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044,China g Institute of hydrology and Geology,Chinese Academy of Geological Sciences,Zhengding 050803,China h State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China

This study investigates the distribution of modern pollen assemblages in the Qjnghai-Tibetan Plateau, China,based on surface soil samples collected at 1202 sites along an altitudinal gradient of 10 -5500 m asl,where mean annual precipitation(MAP) ranges from 12 to 1840 mm and mean annual temperature(MAT) from -1 to 21.5℃.A total of 153 pollen taxa were found with relative abundances greater than 1%in at least two *** correspondence analysis(CCA) was used to determine the main environmental variables influencing pollen *** results reveal that MAP is the most significant dominant ***,MAT,altitude(ALT),July temperature(MT7),and relative humidity(hhh) are also significant variables that clearly follow the gradients in the CCA ordination, suggesting that pollen assemblages probably not only reflect a single climatic parameter,but also a variety of other climatic inter-related parameters. Transfer functions,based on locally weighted weighted averaging(LWWA),were developed for MAP (R-boot = 0.89,RMSEP = 109 mm),MAT(R-boot = *** = 2.3℃),ALT(R-boot = 0.73, RMSEP = 597 m),hhh(R-boot = 0.82,RMSEP = 4.5%),and July mean precipitation(MP7)(R- boot = 0.87,RMSEP = 23 ram).Overall,our results confirm that pollen can provide reliable estimates of the primary climatic *** application of the LWWA model to the fossil records of Chen Co Lake allowed quantitative inferences to be made about holocene climatic changes in the southern Tibetan Plateau,suggesting that LWWA is a robust calibration method for quantitative palaeo-environ-mental reconstruction based on pollen data in the regions.

关键词： Qinghai-Tibetan plateau Vegetation Pollen Transfer functions holocene Climatic changes

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中压配电网单相接地故障暂态定位技术综述

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电气开关 2019年第4期57卷 1-4页

作者：刘民培林竞妍洪伟彬黄超艺林文贵吴荣福国网泉州供电公司福建泉州362000 国网安溪县供电公司福建泉州362400

中压配电网单相接地故障定位技术,是提高配网供电可靠性的关键。为全面剖析定位算法研究现状,本文从故障暂态信号定位原理、现有定位装置启动方法、装置和信号对时及同步问题三个方面进行了阐述,并对其特点进行分析。针对暂态信号定位方... 详细信息

中压配电网单相接地故障定位技术,是提高配网供电可靠性的关键。为全面剖析定位算法研究现状,本文从故障暂态信号定位原理、现有定位装置启动方法、装置和信号对时及同步问题三个方面进行了阐述,并对其特点进行分析。针对暂态信号定位方法,主要分析了暂态无功功率法、行波法、暂态信号相关法和基于数学信息处理的综合定位法。然后在此基础上结合配电网发展趋势及用户对供电可靠性的要求,探讨了未来配电网故障定位技术的研究方向和发展前景。

关键词：单相接地故障定位暂态信号装置启动对时及同步

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