Conflict of interest reporting in biomedical journals published in China

This study aimed to investigate the current status and policy of Conflict of interest (COI) reporting in biomedical journals in China. Thirty Chinese-language medical journals and 37 English-language biomedical journals indexed by Journal Citation Reports categories were included into this study. These 67 journals were all published in China. All articles published in the most recent two issues were checked for identifying the disclosure statement in the text or not. Twenty-one of 30 (70%) Chinese-language journals required a disclosure of author’s potential COI. No journals require editors or referees to disclose the conflicts of interest to the readers. In total, 1,212 publications in Chinese-language were evaluated. Only two journals reported COI in their publications. For the 37 English-language journals, 32 (86.5%) required author’s potential COI disclosure, and four of them required only research articles or original articles to disclose COI. A total of 1,170 publications were evaluated. Among them, 50% editorials, 79.3% review articles, and 73.6% original articles reported presence or absence of COI. In our studied journals, the percentage of the policies requiring author COI disclosure is still low. Biomedical journals published in China should enforce COI disclosure policies to authors, editors, and referees.     

从灾害新闻的传播看中美新闻理念的不同——以《人民日报》和《纽约时报》的台风报道为例

同样是面对自然灾害给民众带来的巨大损失,中美两国的主流报纸是怎么表现的？分析《人民日报》和《纽约时报》关于台（飓）风的灾害新闻传播,比较它们在传播数量、内容特点、表现方式等的差异,可以窥见两国在新闻理念中的不同。     

“90后”网络媒体形象的建构与实证

网络媒体报道的内容与"90后"的生活常态不符,且主要呈现的是一种负面形象。这是媒体赚取关注而主动选择的结果。通过将相关调查研究的结果与网络媒体建构的形象相比较,研究发现网络媒体所建构的"90后"形象与现实中的"90后"存在着明显的差距,媒体要从社会责任、社会公平的角度出发,客观全面地去报道"90后"的真实形象。     

媒体监督公司治理的实证研究

随着国内改革环境的逐步宽松和市场竞争的加剧,为了赢得社会声誉和获得商业利益,媒体有动力去监督公司中存在的治理问题。在本文所选取的96个研究样本中,60.42%存在公司治理问题的企业都在证监会正式介入调查前受到过媒体的质疑和负面报道,说明媒体并非事前"缄默无语"、事后"言辞铿锵",而是积极地扮演了资本市场监督者的角色;基于成本与收益的权衡考虑,媒体会选择性质严重和涉及金额大的公司治理问题进行负面报道。本文的研究结论一方面为媒体在转型经济国家发挥公司治理监督者的作用提供了证据,另一方面也分析了在法律制度和市场化尚不完善的情况下,影响媒体发挥监督作用的因素,依此提出了若干政策建议。     

Bayesian prediction of the total time on test using doubly censored rayleigh data

In a Bayesian setting, and on the basis of a doubly censored random sample of failure times drawn from a Rayleigh distribution, Fernandez (2000, Statist. Probab. Lett. , 48 , 393-399) considered the problem of predicting an independent future sample from the same distribution. In this article, we extend his work to include the estimation of the predictive distribution of the total time on test up to a certain failure in a future sample, as well as that of the remaining testing time time until all the items in the original sample have failed. Two examples are used to illustrate the prediction procedure.     

十七大对马克思主义利益理论的坚持与发展

十七大报告含有丰富的关于利益的理论。它确立了中国共产党所要代表和维护的根本利益问题,把人民的切身利益即民生问题摆到了重要的议事日程上。在利益成果的分配上,提出了共享利益的理念;在利益矛盾处理的方式上,要统筹兼顾以协调各种利益关系。报告还充分认识到我国利益关系的复杂性,对利益格局变化有充分的洞见并提出了应对措施和办法;对人们现阶段关心的除经济利益之外的政治利益和文化利益也给予了高度关注。最后,还明确提出了各国人民间的共同利益思想。这些利益理论的提出是对马克思主义利益理论的丰富和发展。     

复共线条件下普通岭估计的改进

本文通过对普通岭估计缺陷的分析，提出了改进岭估计的“部分修正”的方法。这一方法既降低了过度膨胀的均方误差，使回归参数得到合理压缩，同时又降低了岭估计过大的均方残差。     

浅谈对Pitman准则的认识

Pitman准则是估计理论中仅有的几个比较两个估计优劣的标准之一 ,本文着重从Pitman准则的局限性、合理性及可发展性这三个方面浅谈了对Pitman准则的看法及认识 ,并在文 [1]的基础上给出了判断估计子 ^ 是否是Pitman意义下的最优估计一种判断方法     

从《范司马奏议》看范钦的抗倭活动

天一阁藏明嘉靖刻本《范司马奏议》,以第一手资料反映了明代抗倭斗争某些方面的重要史实。作者对此作出评介 ,使读者能进一步了解范钦 (1 5 0 6—— 1 5 85 )的抗倭业绩 ,并提出功过评论 ,以弥补历来研究范钦的学者侧重其藏书事业而忽略其他方面的缺憾