听证在公共政策选择中的作用

听证是现代公共决策的重要程序,对于促进和实现公共决策科学化、民主化和法制化具有重要意义.在政策选择中引入听证程序不仅可以有效抑制和防止政府自利性,解决政策制定中的信息不对称问题,而且可以广纳民意、争取民心,增强政策选择的合法性和有效性.     

论创造性思维的时效性

创造性思维的时效是指创造性思维在一定的时间内所取得的思维成果。在追求创造性思维科学性的同时 ,力求其高效率是创造性思维的目的。我们要运用先进的思维工具 ,采用科学的思维方法 ,尽量减少创造性思维中的挫折和曲折 ,力戒不必要思维时间的浪费 ,以提高创造性思维的效率     

高校学生思想政治教育实效性探索

针对当前高校学生思想出现多元性的特点,必须增强思想政治工作的实效性。为此,要坚持创新,在时代感和针对性上下功夫,从育人手段和思政教育的主体等方面入手,改革“两课”教学模式,营造适合学生特点与需要的校园文化环境,加强思政队伍建设,不断探索增强思想政治教育实效性的方法,努力把思想政治教育工作落到实处。     

网络教育的成本与效益分析

在分析网络教育的特点及发展趋势的基础上 ,对网络教育的成本与效益及相关性问题进行了探讨 ,并提出了网络教育成本分担 ,阐述了通过提高网络教育的利用效率与效益 ,降低网络教育直接成本 ,促进网络教育持续不断发展     

The impact of sales promotions on store performance: a structural vector autoregressive approach

The present paper analyses the impact of sales promotions on store performance, in the short and long term, from the retailer's point of view. Relationships among promoted and regular sales in the hypermarkets of a large-scale retail chain of national importance, are investigated by means of a structural vector autoregressive model (SVAR). Statistically significant effects of sales promotions in the heavy household section on store sales are found in the short-run; these promotions produce additional sales and thus act as an attractive factor. Promotions in textile category, on the contrary, produce an immediate negative effect on net sales. In the long run, negative statistically significant effects on regular sales are detected when promotions are repeatedly implemented within perishables category.     

无因管理问题的研究

无因管理作为民法法律之债的发生依据之一,应当根据社会的发展赋予其新的价值。本文试从无因管理的社会意义和法律性质、成立条件、效力、类型化及类型化无因管理的法律效果等方面就无因管理的有关问题进行了研究。     

国外社区矫正的理论基础及其发展评估

20世纪70年代以来,世界各国都在不断地进行刑罚制度的改革和创新,社区矫正就是在这样的背景下诞生的一种全新的行刑方式。社区矫正之所以能在现代社会被西方国家普遍接受和采纳,是因为其背后包含了若干深层合理的基础理论,蕴涵着人道和效益的价值理念。正如一个硬币的两面,社区矫正在发展进程中也面临着一些问题:社区矫正在减少再犯和疏减监狱拥挤压力方面成效并不显著;社区矫正的实施容易导致自由裁量权的滥用和社会控制网络的扩张。     

Assessing accuracy of a continuous screening test in the presence of verification bias

Summary.  In studies to assess the accuracy of a screening test, often definitive disease assessment is too invasive or expensive to be ascertained on all the study subjects. Although it may be more ethical or cost effective to ascertain the true disease status with a higher rate in study subjects where the screening test or additional information is suggestive of disease, estimates of accuracy can be biased in a study with such a design. This bias is known as verification bias. Verification bias correction methods that accommodate screening tests with binary or ordinal responses have been developed; however, no verification bias correction methods exist for tests with continuous results. We propose and compare imputation and reweighting bias-corrected estimators of true and false positive rates, receiver operating characteristic curves and area under the receiver operating characteristic curve for continuous tests. Distribution theory and simulation studies are used to compare the proposed estimators with respect to bias, relative efficiency and robustness to model misspecification. The bias correction estimators proposed are applied to data from a study of screening tests for neonatal hearing loss.     

外语教学运行效能机制及其教学应对策略探析

探讨和揭示了外语教学运行中几个基本要素的关系及其运行过程中的教学效能机制,为教学实践提供理论依据。     

论保险利益的效力

保险利益原则是保险法上的基本原则之一 ,其功能在于防止赌博和道德危险。保险利益应于何时、对何人发生效力 ,是保险利益的效力问题。基于保险利益的功能和存在的意义 ,保险利益应是对保险合同中约定的、或法律规定的受益人的约束 ,其应在保险事故发生时存在。