从开封“清明文化节”看清明文化复兴概况

清明节作为我国一大节日,有着丰富的传统文化内涵。在清明节俗传承、保护与发展的过程中,我们必须尊重清明节传统习俗,真正了解该传统习俗的内涵,只有这样,才能真正达到弘扬传统文化、保护清明节俗的目的。     

“现代村庄公社”的文化嬗变及其应对机制——以韩村河企业集团改制为例

“现代村庄公社”是市场经济中一种特殊的文化现象，曾有人用“外圆内方”描述其运作模式。然而，随着工业文明的深入，乡土文化日渐式微，“现代村庄公社”所孕育的价值理性也不得不做出妥协。通过村庄精英的推动，以较高的村庄福利以及村籍制度等提升村民生活预期、巩固地缘关系、强化内聚力的制度化形式使村庄公社得以维系。     

《南方文坛》与90年代以来的广西文学

《南方文坛》和90年代以来的广西文学是在互动中共同成长、共同发展的。它始终以推介广西文学为己任。通过设置品牌栏目和策划、举办、参与文学活动等形式，为广西文学的持续发展提供理论支持和营造良好的批评氛围，培养和扶持一批青年作家和批评家，对广西文学的崛起和广西文学整体推向全国文坛作出了突出贡献。     

Ancient DNA sequences of rice from the low Yangtze reveal significant genotypic divergence

Rice (Oryza sativa) was first domesticated in the lower and middle Yangtze regions of China, and rice remains have been found in many Chinese archaeological sites. Until now, only phenotypic archeobotanical evidence, such as the spikelet bases of ancient grains, has been used to speculate on the domestication process and domestication rate of rice. In this study, we sequenced 4 genomic segments from rice remains in Tianluoshan, a site of the local Hemudu Neolithic culture in the low Yangtze and two other archaeological sites (~2400 and 1200 BC, respectively). We compared our sequences with those of the current domesticated and wild rice (O. rufipogon) populations. At least two genotypes were found in the remains from each site, suggesting a heterozygotic state of the rice seeds. One ancient genotype was not found in the current domesticated population and might have been lost. The rice remains belonged to the japonica group, and most if not all were japonica-type, suggesting that the remains might be at an early stage of indica-japonica divergence or an indica-japonica mixture. We also identified sequences with significant similarity to those from species of Sapindales, Zygophyllales, and Brassicales, which is consistent with the identification of other plant remains in the Tianluoshan site and the common rice field weeds such as mustards in southern China.     

试论王晓方的《驻京办主任》系列小说

王晓方的《驻京办主任》系列小说从单一的驻京办"批评"转向为对体制改革、人性缺陷的反思,并在此过程中融入了对中国当代官场文化生态的悲剧性审美,体现了作者试图对中国"政治"文学场域进行更为宽广的拓展,以此构建其独特的文化诗学。其中系列小说一、二部和三、四部的艺术旨意有着明显的差异,前两部小说存在"道德性"的论断与痕迹,后两部小说则试图从整个政治框架去思考官场人物的心理变迁及这种变迁的悲剧性,寻求从人性的角度去拓展当代中国的"政治"文学场域。     

模板甲基化水平对鼠肝RNA聚合酶体外转录活性的影响

利用３Ｈ－ＵＴＰ同位素参入法，研究了大鼠肝细胞ＲＮＡ聚合酶在核内外的转录活性，结果表明：在细胞核内的转录活性明显低于在无核抽提物中的转录活性。利用自身的ＤＮＡ模板，优于利用外加的ＤＮＡ模板。并比较了不同ＤＮＡ甲基化水平的模板对ＲＮＡ聚合酶体外转录活性的影响，发现模板的甲基化水平与其体外转录水平呈反相关。     

Gene inactivation triggered by recognition between DNA repeats

This chapter focuses on phenomena of gene inactivation resulting from the presence of repeated gene copies within the genome of plants and fungi, and on their possible relationships to homologous DNA-DNA interactions. Emphasis is given to two related premeiotic processes: Methylation Induced Premeiotically (MIP) and Repeat-Induced Point mutation (RIP) which take place in the fungiAscobolus immersus andNeurospora crassa, respectively. The relationships between these processes and genetic recombination are discussed.