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This paper presents a crowd sensing system (CSS) that captures geospatial social media topics and allows the review of results. Using Web-resources derived from social media platforms, the CSS uses a spatially-situated social network graph to harvest user-generated content from selected organizations and members of the public. This allows 'passively' contributed social media-based opinions, along with different variables, such as time, location, social interaction, service usage, and human activities to be examined and used to identify trending views and influential citizens. The data model and CSS are used for demonstration purposes to identify geotopics and community interests relevant to municipal affairs in the City of Toronto, Canada. [ABSTRACT FROM AUTHOR]

The quincentennial year of Vasco da Gama's arrival in India, 1998, was pivotal in new efforts to reimagine and represent Portuguese national identity, as Lisbon hosted the country's first international exposition, Expo '98. The iconography of Da Gama and the golden age of the Portuguese maritime "Discoveries" permeated new urban development and official cultural events at tile fair, calling attention to the relevance of Portugal's past to its present and future roles in emerging European and global economies, claiming special national expertise in brokering cross-cultural exchanges, especially between Europe, Africa, and Asia, and highlighting cosmopolitan Lisbon's historic and continuing importance in such encounters. Newer liberal reinterpretations of Portuguese history were challenged by leftist and anti-imperialist elements within Portugal, by critics in India, and by the Portuguese right wing. This controversy over historical commemoration also offered implicit commentary on the quality of Portuguese democracy, especially over how much Portugal has superseded the ideologies of the right-wing Salazarist "New State," which officially ended in 1974. [ABSTRACT FROM AUTHOR]

This paper proposes a new framework to understand the use and value of GIS by social movement groups and to transcend the contested debate over how and whether GIS should be adopted. It frames the debate in terms of the conforming properties of GIS. The proposal is that conservation GROs must conform to GIS to ensure effective usage; however, in the process of that use, they mould the GIS to their own objectives. Various examples from the North American conservation movement illustrate the properties of GIS conformity and likely outcomes of research. This paper asks the reader to rethink PPGIS and GIS diffusion. It also poses questions for further research that frames adoption as an issue of conformity. [ABSTRACT FROM AUTHOR]

Plotnicov, Leonard, ed. American Culture: Essays on the Familiar and Unfamiliar. Pittsburgh: University of Pittsburgh Press, 1990. xii + 301 pp. including chapter bibliographies. $24.95 cloth, $12.95 paper. Moffat, Michael. Coming of Age in New Jersey: College and American Culture. New Brunswick, New Jersey: Rutgers University Press, 1989. xvii + 355 pp. including references and index. $35.00 cloth, $12.95 paper. [ABSTRACT FROM PUBLISHER]

The influence of bovine serum albumin (BSA) on the radiolysis of double-stranded DNA was studied by measuring the loss of highly polymerized DNA with HPL-gel chromatography. The scavenger capacity of BSA for OH-radicals kBSA \[BSA] was kept constant at 7.8 105 s1, when DNA (0.1 mg/ml) was irradiated under different gas conditions (air, N2 and N2 O), at pH 7 and 5 and with different ionic conditions. The resulting protein radicals react with DNA producing DNAprotein crosslinks and DNA double-strand breaks. The yield and the kind of DNA damage depend on the nature of the protein radicals and their association with DNA. High phosphate concentration prevents the association of BSA with DNA and causes a reduction of the protection by BSA against double-strand breakage of DNA. Radiolysis in the presence of BSA in perchlorate solution leads to more strand breakage and less protein crosslinking than in phosphate solution because perchlorate is more chaotropic than phosphate. Changing the pH from 7 to 5 increases the protection by BSA against DNA strand breakage. [ABSTRACT FROM AUTHOR]