Ethnic Place Identity Within A Parisian Neighborhood

The Goutte d'Or neighborhood of Paris has long been seen as an impoverished yet colorful quarter of the city. In recent years, it has also developed a reputation as a center for immigrants. Three populations now share the neighborhood: the European French, the Maghrebi immigrant population and their children, and the newest population of migrants from former Francophone colonies. This paper examines how the Goutte d'Or's social and ethnic identity is revealed in the built environment and in its social and economic activity. This neighborhood demonstrates how different communities and place identities coexist. It also shows how global networks of migration, exchange, and visits infuse local places. The Goutte d'Or distills many aspects of French immigrant identities, providing an example for increasing numbers of immigrant neighborhoods in France and across the world.     

A 20cm 2 CCD mosaic camera for a dark matter search part II : Electronics,data acquisition and performance

Conclusion To summarize, the readout and the control system of the CCD mosaic camera are running since December 1991 at the La Silla Observatory (ESO). The overall performance of the camera has been good. About 12000 pictures (data and flat-fields) have been successfully registered up to now. We will report in the near future preliminary scientific results of the EROS experiment.     

Vermicomposting of domestic waste by using two epigeic earthworms (Perionyx excavatus and Perionyx sansibaricus)

The composting potential of two epigeic earthworms (P. excavatus and P. sansibaricus) was studied in 2002 to breakdown the domestic waste under laboratory conditions. The experimental container with P. sansibaricus showed maximum mineralization and decomposition rate than that of P. excavatus. Except for exchangeable K (it was higher (P = 0.004) in a container with P. excavatus), the domestic waste processed by P. sansibaricus showed about 6% more total nitrogen (P = 0.002) and about 7% more available P (P = 0.269) at the end than by P. excavatus. As compared with the initial level organic C content as well as C:N ratio showed a considerable reduction that was noted higher in substrate with P. sansibaricus than those by P. excavatus (organic C, t-test: P = 0.870; C:N ratio, t-test: P = 0.002). The growth (biomass increase) and reproduction parameters such as mean individual live weight, maximum individual growth rate (mg wt./worm/day), number of cocoons and reproduction rate (cocoon/worm/day) were higher in bedding with P. sansibaricus. The maximum earthworm mortality was in vermibed having P. sansibaricus (～50% higher than by P. excavatus) (t-test: P = 0.423), since both species did not show a drastic difference in waste mineralization rate, but comparatively, P. excavatus exhibited better growth and reproduction performance, which further support the suitability of the species for large scale vermiculture operations.     

双链DNA片段的碱基空间模式BSP——基因组调控区的一种可能的信息编码方式

生物体可看作是一种特殊的信息处理系统 ,论文的第二章从这种观点出发讨论了生物细胞内最大的信息源基因组DNA序列的信息编码问题。首先探讨了基因组蛋白质编码区的信息编码问题 ;简要回顾转录水平的基因表达调控后 ,讨论了基因组基因表达调控区的信息编码问题。第三章介绍了我们利用internet上可获取的开放的生物信息学资源 ,对基因组DNA调控区的一种可能的编码方式所进行的理论研究。这种可能的编码方式我们称之为双链DNA上的碱基空间模式BSP (BaseSpatialPattern)。首先 ,我们发现了由三联体BSP介导的一种 4与 2 0的关系 ,称为 4 -BSP -2 0关系。并推测 4 -BSP -2 0关系也许是某些DNA—蛋白质相互作用中的一种识别密码 ;第二 ,研究真核细胞转录调控中的DNA—蛋白质相互作用的实验数据表明 :某些DNA结合蛋白质对双螺旋核酸的专一性识别可能与BSP有关。并找到了 7组由其他生物学家公开发表的实验数据支持这一猜测 ;第三 ,研究了BSP的形式化描述问题 ,找到了一种基于等价类的BSP描述方法 ,并开发了相应的计算机处理算法。该描述方法简明且便于用计算机进行处理 ,更重要的是它提供了一种研究途径 ,可把BSP和 4 -BSP -2 0关系推广到单链DNA (ssDNA)和ssDNA -蛋白质相互作用的研究中 ,从而可进一步推广到RN