Ricardo de Sampaio Dagnino

The main goal of this study was to present the pathways or trajectories the Zika virus tends to expand through Brazil. Therefore, we proposed to map the network of cities that are linked to two important points of occurrence and distribution of cases of the disease, the municipalities of Recife and Rio de Janeiro. Recife for being an initial point of distribution of the Zika cases to the country, whereas the analysis of Rio de Janeiro can present the paths that the virus tends to follow from now. As data sources, we used the Brazilian Population Census (IBGE, 2010) and the National System of Notifiable Diseases (SINAN). From the Census it was possible to analyze the main migratory flows between Brazilian cities that presented Dengue epidemics between 2008 and 2012 (the mosquito vector of this disease is the same as Zika, Aedes aegypti). The results indicate the possible path that led to the distribution of the Zika virus from Recife to other locations in the Brazilian Northeast, reaching Rio de Janeiro, Brasília (the national capital) and, from there, spreading to the other states of the country.

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Este artigo apresenta um método de trabalho que está sendo aplicado na Bacia Hidrográfica do Ribeirão das Anhumas, em Campinas, São Paulo, e constitui parte importante da dissertação de mestrado de Ricardo Dagnino em andamento no Instituto de Geociências da UNICAMP e sob coorientação de Salvador Carpi Jr. O trabalho envolve o mapeamento de riscos ambientais sob o enfoque da participação de moradores e pessoas com algum tipo de atuação na área da bacia: agentes de saúde, líderes comunitários, estudantes, professores, profissionais liberais, donas-decasa, aposentados, dentre outros interessados no tema. Este mapeamento de riscos está inserido no contexto do projeto de políticas públicas apoiado pela Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) nº. 01/02952-1, intitulado "Recuperação ambiental, participação e poder público: uma experiência em Campinas". A equipe de mapeamento de riscos ambientais é multidisciplinarmente composta de profissionais e estudantes das áreas das ciências biológicas e da terra (engenharia agronômica, geografia, biologia, entre outras) e das ciências sociais e da saúde (medicina, publicidade, sociologia, etc).

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This study is part of an integrated landscape analysis at Serra do Mar State Park – Picinguaba Nucleous, at Ubatuba, São Paulo State, based on the ecodynamics studies of Tricart (1977), the dynamic cartography of Journaux (1985) and the geosystemic approach of Bertrand and Bertrand (2002). Human impacts on natural landscapes were studied under three approach levels: terrain shape, processes and superficial deposits. The identification of anthroposoils is expected to bring indicators of man induced transformations of the landscape physiology and thus contribute to the understanding of Technogen. The applied methodology is based on remote sensing (Landsat 7-ETM+) to map actual land use and vegetation cover through image classification and on GIS geomorphological mapping with 30m grid DEM (refined from SRTM-90m data by kriging interpolation) and derived products, as slope angle, terrain curvature and others. The resulting layers are integrated with environmental variables towards the identification and the mapping of altered deposits. This methodology will be completed with the identification of deposits (Fanning and Fanning, 1998) and with the soil classification according to EMBRAPA (1999) and Curcio et al (2004). The study will be evaluated in field work and the final results shall further support a conservation plan for the area.