市场经济与主持人直播机制

面对计划经济向社会主义市场经济转轨的伟大变革,新闻媒介必须打破旧的传播模式,寻求新的运作动机,这是当前新闻界面临的重大改革课题。在这一变革中孕育诞生的主持人直播机制,是广播走向市场服务于市场的历史选择。市场经济的发展给广播注入了生机和活力。始于珠江经济     

浅谈数学独立思考能力的培养

独立思考是在强烈的求新、创造意识之下改组已有经验获取新颖知识的一种非常复杂的心理智能活动，它是发现、突破、创新的前提。《中学数学教学大纲》明确提出“要重视培养学生独立思考和自学能力”，因此，培养学生的独立思考能力是中学数学教育的目标之一。那么，让学生在哪些方面思考，又如何培养他们的独立思考能力呢？     

中国古代“文气论”探■

“气”是中国文化的核心范畴。作为文章之“气”，可析之为三：作者之气、创制之气和文本之气。由此可推演出“文气论”的三个组成部分：着眼于作者的“养气说”、关乎创制的“行气说”和立足文本的“神气说”。因“文气论”在“作者——创制——文本”中具有举足轻重的作用，故而，它成为中国文章理论的核心     

CHINESE ARTS SPARKS FEVER AT CERVANTES FESTIVAL

Cervantes International Festival, the largest cultural event in Latin America, embraced its 35th session on October 3 in the historic city of Guanajuato, Mexico. China was invited as the guest country of the annual festival this year and regaled the audience with diverse performances and exhibitions. At the opening evening gala taking place in the city＇s Frog Plaza singers and dancers from the Chinese province of Jilin staged fascinating programs, all with distinctive Chinese flavors and winning lots of ovations. Chinese assistant cultural minister Ding Wei, senior officials from Guanajuato as well as many other distinguished guests watched opening performances.[第一段]     

理论广播的困惑和选择

困惑中的思索理论广播是广播宣传的重要组成部分。它在提高群众理性认识和理论思维能力方面,在加强舆论导向方面所发挥的作用,是其它节目无法替代的。当前,改革和建设的伟大实践呼唤着理论,寻求理论的支持,期待理论的指导,迅     

Deregulation of microRNA expression in thyroid tumors简

MicroRNAs (miRNAs or miRs) are endogenous non-coding RNAs that negatively regulate gene expression by binding to the 3′ non-coding regions of target mRNAs, resulting in their cleavage or blocking their translation. miRNAs may have an impact on cell differentiation, proliferation, and survival, and their deregulation can be inclined to diseases and cancers, including thyroid tumors. The purpose of this review is to summarize the existing findings of deregulated miRNAs in different types of thyroid tumors and to exhibit their potential target genes, especially to demonstrate those involved in tumor invasion and metastasis. In addition, new findings of circulating miRNA expression profiles, single nucleotide polymorphism (SNP) in thyroid tumors, and the correlation of somatic mutations with deregulated miRNA expression in thyroid tumors were all included in this review.     

Is right ventricular mid-septal pacing superior to apical pacing in patients with high degree atrio-ventricular block and moderately depressed left ventricular function?

Objective

We are aimed to investigate whether right ventricular mid-septal pacing (RVMSP) is superior to conventional right ventricular apical pacing (RVAP) in improving clinical functional capacity and left ventricular ejection fraction (LVEF) for patients with high-degree atrio-ventricular block and moderately depressed left ventricle (LV) function.

Methods

Ninety-two patients with high-degree atrio-ventricular block and moderately reduced LVEF (ranging from 35% to 50%) were randomly allocated to RVMSP (n=45) and RVAP (n=47). New York Heart Association (NYHA) functional class, echocardiographic LVEF, and distance during a 6-min walk test (6MWT) were determined at 18 months after pacemaker implantation. Serum levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) were measured using an enzyme-linked immunosorbent assay (ELISA) kit.

Results

Compared with baseline, NYHA functional class remained unchanged at 18 months, distance during 6MWT (485 m vs. 517 m) and LVEF (36.7% vs. 41.8%) were increased, but BNP levels were reduced (2352 pg/ml vs. 710 pg/ml) in the RVMSP group compared with those in the RVAP group, especially in patients with LVEF 35%–40% (for all comparisons, P<0.05). However, clinical function capacity and LV function measurements were not significantly changed in patients with RVAP, despite the pacing measurements being similar in both groups, such as R-wave amplitude and capture threshold.

Conclusions

RVMSP provides a better clinical utility, compared with RVAP, in patients with high-degree atrioventricular block and moderately depressed LV function whose LVEF levels ranged from 35% to 40%.     

寻找新视点——谈《一位农民和农业法》

在众多农村题材的报道中,江苏人民广播电台祝长胜、唐野苍采制的录音通讯《一位农民和农业法》(获93年度“中国广播奖”社教类一等奖),以其独特的视角,向人们展现了一个新型农民的形象。费桂龙,江都杨庄乡的一个普通农民,差不多与共和国同时诞生。他不但目睹,而且亲身经历了农村变迁的风风雨雨。中国的黄土地曾经长期负载着沉重的灾难,面     

基础观·系统观·引导观──关于农业宣传的思考

基础观·系统观·引导观──关于农业宣传的思考成明农业、农村和农民问题，始终是一个关系我们党和国家全局的根本性问题。在发展社会主义市场经济中，这一根本问题又被赋予了新的内涵。因此，如何宣传农业、农村和农民，是我们面；启的一个新课题。我认为，目前对农业的...