武汉市关山地区“城中村”改造问题调查报告

一、调查背景与目的 随着改革开放的深入,城市经济得以迅速发展,城市的大规模建设,也使城市面貌得以迅速改观.     

证券市场的开放与规则的发展--以B股规则为中心的检讨

人民币特种股(B股)市场作为我国证券市场开放的窗口和试验田,至今已存在10余年,相比它短暂的辉煌,如今的B股市场已经日益“边缘化”,除了进行投机,B股还能为中国证券市场开放做些什么?结合我国证券市场的特点,深入分析B股市场的发展及其规则变迁,认真总结其经验和教训,对我国在证券市场开放过程中建立健全相关法律制度很有借鉴意义。     

东北方言中的万能动词——整

方言是极具地方和民族性格特征的一种表现,也是特殊的文化现象。辽宁是一个多民族聚居地区,东西南北各有不同的语音语调。用文字的形式表述方言的特点,也是本刊的一个尝试。意于相声、小品之外,更多了解辽宁人的不同生活侧面。本刊今起将开设"东北话"栏目。相信它能通过对我们习以为常的一些用词用语加以归纳梳理,帮助国内外读者走进辽宁人丰富多彩的真实生活之中。     

Bootstrap Estimation of Benchmark Doses and Confidence Limits with Clustered Quantal Data

The benchmark dose (BMD) is an exposure level that would induce a small risk increase (BMR level) above the background. The BMD approach to deriving a reference dose for risk assessment of noncancer effects is advantageous in that the estimate of BMD is not restricted to experimental doses and utilizes most available dose-response information. To quantify statistical uncertainty of a BMD estimate, we often calculate and report its lower confidence limit (i.e., BMDL), and may even consider it as a more conservative alternative to BMD itself. Computation of BMDL may involve normal confidence limits to BMD in conjunction with the delta method. Therefore, factors, such as small sample size and nonlinearity in model parameters, can affect the performance of the delta method BMDL, and alternative methods are useful. In this article, we propose a bootstrap method to estimate BMDL utilizing a scheme that consists of a resampling of residuals after model fitting and a one-step formula for parameter estimation. We illustrate the method with clustered binary data from developmental toxicity experiments. Our analysis shows that with moderately elevated dose-response data, the distribution of BMD estimator tends to be left-skewed and bootstrap BMDL s are smaller than the delta method BMDL s on average, hence quantifying risk more conservatively. Statistically, the bootstrap BMDL quantifies the uncertainty of the true BMD more honestly than the delta method BMDL as its coverage probability is closer to the nominal level than that of delta method BMDL. We find that BMD and BMDL estimates are generally insensitive to model choices provided that the models fit the data comparably well near the region of BMD. Our analysis also suggests that, in the presence of a significant and moderately strong dose-response relationship, the developmental toxicity experiments under the standard protocol support dose-response assessment at 5% BMR for BMD and 95% confidence level for BMDL.     

刑事普通程序简化审理的制度选择与模式构建

现代社会犯罪率上升 ,刑事司法积案严重 ,对适用普通程序的刑事案件实行简化审理 ,有助于提高诉讼效率、缩短诉讼周期、降低诉讼成本 ,是司法实践中行之有效的应对之举。本文从刑事案件实行普通程序简化审理的海外借鉴及现实需要等角度论证了实行该制度的必然性 ,并从理论与实践相结合的角度 ,对普通程序简化审理的适用条件与操作流程作了深入的阐述     

中国节节麦的细胞遗传学研究及有关问题探讨

应用染色体组分析法,对新疆节节麦、黄河流域节节麦、伊朗节节麦和中东节节麦的D染色体组进行了较系统的比较分析,结果表明:新疆节节麦与伊朗、中东两地节节麦在染色体组水平上无明显差异,其差异仅体现在染色体的细微结构组成上;臂内倒位是引起染色体结构组成上细微分化的主要原因。黄河流域节节麦与新疆节节麦的染色体组极为相近;其D组染色体无论在染色体组水平上,还是在染色体细微结构组成上均无差异。本文还就中国节节麦与中国特有六倍体普通小麦的起源演化,中国节节麦种质资源在现代小麦育种中的应用等问题进行了讨论。     

丙硫咪唑驱绦虫试验

作者首次应用不同剂量的丙硫咪唑进行驱除建鲤绦虫试验。用丙硫咪唑20mg/Kg体重驱除建鲤肠道中的九江头槽绦虫,驱虫率达96.5％以上,效果好,安全可靠。     

有错检验情况下标准型抽样方案的设计

本文给出了在有错检验情况下标准型抽样方案的设计方法，讨论了误检概率ｐ，ｐ′对抽样方案的影响，并给出抽样方案的实际应用。     

试述高校工会的维权途径

在高等院校改革过程中,协调劳动关系,维护教职工的合法权益是工会的基本职责。那么怎样维权,其途径是什么?这是值得探讨和研究的问题。本文就这一问题谈些自己的粗浅认识。