《哲里木畜牧学院学报》1996—1999年引文分析

对《哲里木畜牧学院学报》1996— 1999年 4年共 16期学报论文后所引用的参考文献的年代、类型、语种等进行了统计分析     

关于医疗纠纷法律制度改革的思考

目前我国医疗纠纷法律制度严重滞后,改革呼声日趋高涨。但学界对改什么和如何改的问题缺乏细致深入的研究。本文在对现行医疗纠纷法律制度进行全面评析后,对消除该法内部固有矛盾、改革医疗鉴定体制、完善医疗诉讼程序等方面提出了新的思路与方法。     

Designing and integrating composite networks for monitoring multivariate gaussian pollution fields

Networks of ambient monitoring stations are used to monitor environmental pollution fields such as those for acid rain and air pollution. Such stations provide regular measurements of pollutant concentrations. The networks are established for a variety of purposes at various times so often several stations measuring different subsets of pollutant concentrations can be found in compact geographical regions. The problem of statistically combining these disparate information sources into a single 'network' then arises. Capitalizing on the efficiencies so achieved can then lead to the secondary problem of extending this network. The subject of this paper is a set of 31 air pollution monitoring stations in southern Ontario. Each of these regularly measures a particular subset of ionic sulphate, sulphite, nitrite and ozone. However, this subset varies from station to station. For example only two stations measure all four. Some measure just one. We describe a Bayesian framework for integrating the measurements of these stations to yield a spatial predictive distribution for unmonitored sites and unmeasured concentrations at existing stations. Furthermore we show how this network can be extended by using an entropy maximization criterion. The methods assume that the multivariate response field being measured has a joint Gaussian distribution conditional on its mean and covariance function. A conjugate prior is used for these parameters, some of its hyperparameters being fitted empirically.     

贺兰山岩画的发现保护及学术地位

作者系统地介绍了贺兰山岩画的发现过程、数量、规模,分析了目前遭大面积破坏的原因,并就近年来对贺兰山岩画的考察研究结果及它在世界古代人类文化史上的地位进行了综合评价。     

光谱法测量等离子体离子温度和再循环粒子流速

利用多道光学分析仪（OSMA）测量HT-6M托卡马克限制器前Hα线形分布,通过高斯拟合由多普勒展宽和多普勒频移分别得出等离子体离子温度和再循环粒子流速。     

国际互联网上环境科学与环境教育分类信息资源

分类介绍了国际互联网上与环境科学和环境教育有关的33个网点的主页、网址、主要信息类型和内容提要等情况。     

关于政治权力合法性的探讨

政治权力合法性的问题是现代国家不可也无法避免的重要问题.本文从政治权力合法性界定入手,从历史发展的角度探讨了合法性理论的渊源,指出政治权力的正当性与对政治权力的认同构成了政治权力合法性的基础和源泉.合法性是一种没有权力的权力.中国正处于经济、社会的转型期,中国共产党必须注重执政合法性的构建.     

论中共二大提出"民族自决"的历史原因

本文认为,中共二大提出并不符合中国国情的民族自决主张,有其一定的必然性.这种必然性来自当时国际与国内、主观和客观诸种因素相互作用而产生的"历史合力".     

从政府单一管理到综合治理——我国人口发展治理体系建设的政策分析

政府单一管理的传统计划生育管理体制已经不适应当今现实。根据社会治理理论,人口发展治理体系建设需要转换政府职能;缩小政府管制范围,扩大市场机制的应用范围和强度;激励公众参与,建立社会制衡机制。在具体的建设当中要注意处理好四对关系。     

A simple two-step procedure using the Fellegi–Sunter model for frequency-based record linkage

The widely used Fellegi–Sunter model for probabilistic record linkage does not leverage information contained in field values and consequently leads to identical classification of match status regardless of whether records agree on rare or common values. Since agreement on rare values is less likely to occur by chance than agreement on common values, records agreeing on rare values are more likely to be matches. Existing frequency-based methods typically rely on knowledge of error probabilities associated with field values and frequencies of agreed field values among matches, often derived using prior studies or training data. When such information is unavailable, applications of these methods are challenging. In this paper, we propose a simple two-step procedure for frequency-based matching using the Fellegi–Sunter framework to overcome these challenges. Matching weights are adjusted based on frequency distributions of the agreed field values among matches and non-matches, estimated by the Fellegi–Sunter model without relying on prior studies or training data. Through a real-world application and simulation, our method is found to produce comparable or better performance than the unadjusted method. Furthermore, frequency-based matching provides greater improvement in matching accuracy when using poorly discriminating fields with diminished benefit as the discriminating power of matching fields increases.