酿酒酵母（Saccharomyces cerevisiae）同源DNA片段的克隆

利用作者克隆的酿酒酵母基因启动子片段Ｙ８为探针和菌落原位杂交方法，从构建的Ｓ．ｃｅｒｅｖｉｓｉａｅ ＹＮＮ２７基因组文库中共筛选８个阳性克隆。根据这些克隆中插入片段大小和限制酶切结果，可将其划分为６种，分别命名为ＹＮ１－ＹＮ６．Ｓｏｕｔｈｅｒｎ杂交结果表明，这６种ＤＮＡ片段不仅能与６．５ｋｂ的全长Ｙ８探针我，而且均能与ＰｓｔＩ酶切Ｙ８所得的３段ＤＮＡ探针杂交。     

陕南山区滑坡发育特征与敏感性分析

在系统分析研究历史文献、遥感信息和实地考察资料的基础上，对陕南山区滑坡发育特征进行了归纳；分析研究了岩性与构造、地貌条件、植被因子、气候因素及人类活动对滑坡发育敏感性的影响；提出了防御滑坡发育的措施     

南淝河水体环境单元分类的模糊聚类方法及结果分析

文章运用模糊数学的方法，对南淝河９个断面的水质监测数据，进行了模糊聚类分析。运用多因子共同作用机理，对南淝河水体环境单元进行了分类，并对聚类的结果进行了初步的分析与讨论。     

Relationship between El Nino /South Oscillation (ENSO) and population outbreaks of some lemmings and voles in Europe

Ecologists have been puzzled by population cycles of lemmings and voles for the over 70 years. At present, our understanding and explanation to this phenomenon remain controversial. Recently, El Ni?o/South Oscillation has attracted attention of ecologists on its links with population outbreaks of terrestrial animals. This paper aims to investigate the statistical relationship between outbreaks of microtine rodents and ENSO events by scanning available literature. During 1862—1894, outbreaks of Norway lemmings in Norway tended to occur in the Southern Oscillation Index (SOI) peak years or 1 year after the SOI peak years with an approximate significance level ( p = 0.057). During 1885—1931, outbreaks of voles in France tended to occur 1 year before the SOI peak years (p = 0.01). During 1946—1993, outbreaks of lemmings and voles in North Finland tended to occur 1 year before the SOI peak years with a significant level (p = 0.022); the peaks of population abundance corresponded well to the SOI trough years (equal to 1 year before the SOI peak years). Outbreaks of common voles in Poland during 1946—1975 tended to occur in the SOI peak years or 1 year before the SOI peak years (p = 0.011), and also tended to occur 1 year before the SOI peak years (p = 0.030). It was also found that the rodent outbreaks in Norway and France, rodent outbreaks in Finland and Poland synchronized well. It was suggested that the ENSO-related climate or food were key factors in causing outbreaks of microtine rodents in Europe.     

“十七年”时期南方少数民族题材电影的叙事研究

通过对“十七年”时期南方少数民族题材电影的叙事方式和特点进行分析和讨论,总结了这一时期南方少数民族题材电影的叙事结构,提出了少数民族电影的另一种理论解释,并描绘了少数民族电影未来的发展趋势。     

咸沟岩体地质地球化学特征及成岩机制探讨

咸沟岩体位于华北地台北缘西段．主岩体为二云母花岗岩，成岩时代为３９９．８±１．８２．１Ｍａ，内有岩浆演化晚期的白云母花岗岩侵入，与主岩体有迥然不同的地球化学特点．前者显示出不同地壳物质混合的岩浆特征，后者属典型的Ｓ型花岗岩．结合区域构造演化分析，认为咸沟岩体形成于拉张环境，源岩可能为下地壳的英云闪长岩．下地壳的深熔岩浆在上升迁移过程中，遭受了富含泥质的陆壳物质的强烈混染，混染岩浆向Ｓ型岩浆方向演化．     

RFLP analysis of nov gene in tumor and normal cells

Using human nov (nephroblastoma-overexpressed, nov) DNA as probe, hybridization to total cellular DNAs of tumor and normal cells digested by restriction enzymes BamHI or EcoRI respectively was carried out through Southern blot. It was observed that nov gene in these cells is not only highly conserved, but also certains RFLP characteristic. The correlation between RFLP characteristic of nov gene and its function was analyzed. Supported by the Natural Science Fundation of China and Doctor Station Foundation Zeng Xianchun: born in June, 1966, Ph. D. graduate student     

南四湖水资源的开发利用研究

本文分析研究南四湖(南阳、昭阳、独山和微山四湖之总称)水资源数量与当前开发利用中存在的问题,并就合理利用水资源、综合开发南四湖和发展湖区经济等方面,提出一些建设性意见和建议。     

Export and remineralization of POM in the Southern Ocean and the South China Sea estimated from 210Po/210Pb disequilibria

Disequilibria between ^210Po and ^210Pb in the upper water and their potential applications as a proxy of particle export and remineralization were examined in the Southern Ocean （station IV3） and the South China Sea （NS44）. ^210po was deficit in surface waters but excessive relative to ^210Pb in subsurface waters. Good positive correlation between ^210Po and particulate organic carbon （POC） indicated deficits and excess of ^210Po resulted from particulate organic matter （POM） export and remJneralization respectively, which was also supported by the decreased δ^13C and increased δ^15N downwards as a result of particle remineralization. On the basis of ^210Po/^210Pb box-model, POC export flux out of the surface waters were 1.2 mmol C. m^-2. d^-1 and 2.3 mmol C. m^-2. d^-1 for station NS44 and IV3, respectively. In the subsurface waters, remineralization fluxes of ^210Po were 0.062 Bq. m^-2.d^-1 and 0.566 Bq.m^-2.d^-1 for station NS44 and IV3 along with the recycle efficiency of 52±26% and 119±52%, respectively. Remineralized fluxes of POM derived from ^210Po and exported POC were 0.6 mmol C.m^-2.d^-1 and 2.7 mmol C. m^-2. d^-1 for NS44 and IV3. This study suggested that ^210Po was a powerful tracer of particle export and remineralization.     

A revision of the Caridina serrata species group,with descriptions of five new species (Crustacea: Decapoda: Caridea: Atyidae)

The taxonomy of the Caridina serrata species group (Caridea: Atyidae) is revised. Neotypes of C. serrata Stimpson, 1860, and C. cantonensis Yu, 1938, are designated. Additional information on Caridina sphyrapoda Liang and Zhou, 1993 is provided. Five new species of the Caridina serrata species group are described, namely Caridina nanaoensis from Guangdong Province, C. apodosis from Hong Kong, and C. yulinica, C. wumingensis and C. mutata from Guangxi Province, all in southern China. A key to all members of the species group is included.