Research on Revolutionary Literature Construction during Wuhan National Government Period

从1926年底到1927年7月，武汉国民政府只存在短短几个月时间，却在中国现代史和现代文学史上占有较重要的地位。这时期出现一系列关于建设“革命文化”以及建立“无产阶级文艺”的讨论，实践上也有着比较丰硕的成果，留下了珍贵的历史足迹和历史影响。因诸多因素的影响，它们却被湮没在历史长河中，成为革命文学叙述中“被遮蔽”的一页。 论文以武汉国民政府时期国民政府在“革命文化”建设方面的具体史料为基础，以武汉革命时期革命青年的革命文学活动为研究对象，分四章论述武汉国民政府时期的“革命文化”建设情况，以求呈现武汉革命文学建设的“当年”情景，客观地认识及评价国民党人在武汉革命时期进行的“革命文化”建设实践，呈...From the end of 1926 to July 1927, Wuhan National Government existed only a few months time, but it had an important position in Chinese modern history and Chinese modern literary history. In this period, there has been a series remarks and opinions on building revolutionary culture.Apart from this, the first discussions on the establishment of "Proletarian Culture" was raised also. There were wea...学位：文学硕士院系专业：人文学院_中国现当代文学学号：1022010115224

田流小说创作的叙事主题与叙事艺术

田流秉持重视文学匡正世道人心和作者道德良知、创作的责任感、使命感的文学观,“立足社会关照人生“是其作品两大叙事主题,相互交织,互相映衬,寄寓其弘扬中华文化,为捍卫华文地位而战斗的理想情怀

校园咖啡文化：梦想与现实之间

厦门大学《凌云报》第四版凤凰树下向朋友介绍厦大时，总是不能免俗地提起校园里的咖啡馆。在中国的高校中，没有哪一所学校如厦大这般钟情于咖啡，执着于咖啡文化。而距离2007年化学化工学院首个学院咖啡厅建立已经过去三年时间了，厦大的校园咖啡文化，是否已经生根发芽了呢？厦门大学研究生

文艺青年的“爱”与“痛”

厦门大学《凌云报》第56期第四版12月24日，鼓浪屿音乐节汇集曹方、痛苦的信仰、卡其社等内地的文艺派歌手，吸引了众多文艺青年到场“膜拜”。明星做宣传总是少不了厦门这一站，仅2010年这一年，厦门先后来了陈绮贞、黄勃、苏遇、拇指姑娘……这些典型的文艺流派，拥有众多自诩为“文艺青年”的粉丝。而厦门俨然成为文艺青年的“圣地”。厦门大学研究生

研究生，你为什么单身？

厦门大学《凌云报》第55期第四版11·11，又是一年单身日，几家欢喜几家愁。这一天，单身族群是发出自由宣言，还是感慨自己的孤独无伴？研究生选择用三年的时间继续学习深造，希望能给未来增加筹码。但是，这一场为期不短的“靶扌”斜中，因为孑然一身而不免多了几分惆怅与不安。单身的你我，总在寻找着与渴望着一份感情，这也是研究生生活一个不争的事实。厦门大学研究生

Effects of Exogenous Nitric Oxide on the Reactive Oxygen Species Metabolisms in Salt-treated Avicennia marina Seedlings

研究了在600 mmol.L-1NaC l处理下,外源一氧化氮供体SNP对白骨壤幼苗叶片中O2-.和H2O2水平、活性氧清除酶活性以及抗氧化小分子AsA、GSH和Car等含量的影响.结果表明:0.1 mmol.L-1SNP可以显著减少NaC l处理下白骨壤叶片中O2-.和H2O2的积累,增强SOD、POD和APX活性,但一定程度抑制CAT和LOX活性,促进AsA消耗,提高GSH和Car含量,从而缓解了NaC l处理下白骨壤叶片的活性氧胁迫.一氧化氮信号传递途径关键酶鸟苷酸环化酶抑制剂亚甲基蓝可以不同程度消除SNP对H2O2、CAT、LOX、POD以及抗氧化小分子AsA、GSH和Car的调节作用,但不能消除SNP对O2-.、SOD和APX的调节作用. 【英文摘要】 The producing rate of O2-·,contents of H2O2,AsA,GSH and Car,activities of the antioxidative enzymes involved in ROS scavenging invoked by sodium nitroprusside(SNP),an nitric oxide(NO) donor,were surveyed in Avicennia marina seedling leaves under 600 mmol·L-1 NaCl treatment.The results showed that,the producing rate of O2-· and content of H2O2 in A.marina leaves were dramatically reduced by 0.1 mmol·L-1 SNP under NaCl treatment.Meanwhile the activities of SOD,POD and APX were increased simultaneously,while t...国家自然科学基金(30271065,39970438);; 厦门大学新世纪优秀人才支持计划(0000-X07115)资

Potential direct interspecies electron transfer (DIET) from Clostridium spp. to Methanosarcina barkeri in amethanogenic isolation

【目的】革兰氏阴性菌Geobacter metallireducens可以与乙酸型产甲烷菌Methanosaeta harundinacea或Methanosarcina barkeri通过种间直接电子传递(DIET)还原CO2产甲烷。本实验室前期的研究发现Methanosarcina mazei和Geobacteraceae在铁还原富集培养中形成团聚体,可能存在直接电子传递。然而,革兰氏阳性菌(如Clostridium spp.)与产甲烷菌是否存在种间直接电子传递尚不明确。【方法】采用Hungate厌氧滚管法,以乙醇为唯一电子供体从铁还原富集培养体系中获得产甲烷分离物(S6)。通过T-RFL..

Diversity of archaea in the sediments from different areas of the Bohai Sea

Methanogens play an important role in the carbon cycle of coastal sediments. In this study, sea water enrichment cultures with acetate as the substrate were employed to enrich methanogens using sediments of the Bohai Sea. The methane production was used to estimate potential methane productivity and terminal restriction fragment length polymorphism analysis was used to analyze the diversity of microbial communities simultaneously. Our results revealed that changes in the bacterial and the methanogens community structures in sediments from different areas of the Bohai Sea were found. The dominant methanogens were Methanobacterium and Methanolobus in sediments of the Bohai Sea, and Desulfovibrio and Thiobacillus were the dominant bacteria. Different areas of the Bohai Sea obviously varied on methane production, which shows that the methane emission is higher in the coastal area. Bohai Sea has great potential for methane productivity and acetic acid conversion rate(46.46%), and the estimation of potential methane production is 1.74 Gt per year

Effects of water conditions on the diversity of soil microbial communities in the coastal reed wetlands

River-sea water interactions in coastal wetlands dramatically affect soil redox potential and cause variations in nutrient elements. In this study, we analyzed the changes in physicochemical properties of soil, diversity in the microbial community, and the Fe(III) reduction activity of microorganisms in reed wetlands of the Yellow River Delta under different water conditions. The results showed that the salinity, pH value, and concentrations of organic carbon, total nitrogen, and Fe(II) in the soil were higher in the flooded reed wetlands as compared with the ammonium concentration. The genera Alishewanella, Cellulomonas, Sphingomonas and Pseudomonas were the dominated bacteria in flooded reed wetlands, whereas Methanosarcina and Methanobacterium were the dominant archaea. Further, the dominated bacteria and archaea in the non-flooded reed wetlands were Cellulomonas, Acidovorax, Geobacter, Thiobacillus, and Methanosarcina, respectively. A shift in the iron-reducing bacterial community structure was also observed in the enrichment samples from flooded and non-flooded reed wetlands. Paracoccus, Geobacter, Alishewanella, and Thiomonas were the dominant iron-reducing bacteria in the flooded reed wetlands, and the dominant genera of iron-reducing bacteria in the non-flooded reed wetlands were Geobacter and Azospira. The diversity of soil bacteria, archaea, and iron-reducing bacteria was higher in the flooded reed wetlands. The Fe(III) reduction activity of iron-reducing bacteria in the reed wetlands was lessened to a certain extent by perennial flooded conditions

Potential direct interspecies electron transfer (DIET) from Clostridium spp. to Methanosarcina barkeri in methanogenic isolates

[Objective] Geobacter metallireducens, a Gram-negative bacterium, can directly transfer electron to acetoclastic methanogens such as Methanosaeta harundinacea and Methanosarcina barkeri for reducing carbon dioxide to methane. Our previous results showed that Methanosarcina mazei and Geobacteraceae formed aggregates in an iron(III)-reducing enrichment culture indicating direct interspecies electron transfer. However, the capability of direct electron transfer with methanogens for Gram-positive iron(III)-reducing bacteria such as Clostridium spp. is still unknown. [Methods] In this further study, methanogenic isolates(S6)were achieved from the iron(III)-reducing enrichment by roll-tube(Hungate)method with ethanol as the sole electron donor. We used terminal restriction fragment length polymorphism(T-RFLP)and clone library analysis to investigate the community of S6 and used electrochemical method such as cyclic voltammetry(CV)to confirm the electroactivity of isolates. [Results] Clone library analysis of 16S rRNA gene showed that Clostridium spp.(close to C. tunisiense)and Methanosarcina barkeri were predominant in the bacterial and archaeal community, respectively. Interestingly, addition of G. metallireducens into S6 did not increase the ability of both iron(III)reduction and methanogenesis, indicating that Clostridium spp. may play a similar role in direct interspecies electron transfer from G. metallireducens to M. barkeri. Furthermore, current generation of the S6 suspension dramatically decreased when contact between the organisms and the electrodes was prevented by dialysis bag, and CV showed no obvious redox peaks. [Conclusion] These results suggested that there was direct electron transfer in the methanogenic isolates. This work demonstrated that the dominant Gram-positive Clostridium spp. can potentially directly transfer electron to M. barkeri in methanogenic isolates