866 resultados para Urban history of Parahyba


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This article advocates for a fundamental re-understanding about the way that the history of race is understood by the current Supreme Court. Represented by the racial rights opinions of Justice John Roberts that celebrate racial progress, the Supreme Court has equivocated and rendered obsolete the historical experiences of people of color in the United States. This jurisprudence has in turn reified the notion of color-blindness, consigning racial discrimination to a distant and discredited past that has little bearing to how race and inequality is experienced today. The racial history of the Roberts Court is centrally informed by the context and circumstances surrounding Brown v. Board of Education. For the Court, Brown symbolizes all that is wrong with the history of race in the United States - legal segregation, explicit racial discord, and vicious and random acts of violence. Though Roberts Court opinions suggest that some of those vestiges still exits, the bulk of its jurisprudence indicate the opposite. With Brown’s basic factual premises as its point of reference, the Court has consistently argued that the nation has made tremendous strides away from the condition of racial bigotry, intolerance, and inequity. The article accordingly argues that the Roberts Court reliance on Brown to understand racial progress is anachronistic. Especially as the nation’s focus for racial inequality turned national in scope, the same binaries in Brown that had long served to explain the history of race relations in the United States (such as Black-White, North-South, and Urban-Rural) were giving way to massive multicultural demographic and geographic transformations in the United States in the years and decades after World War II. All of the familiar tropes so clear in Brown and its progeny could no longer fully describe the current reality of shifting and transforming patterns of race relations in the United States. In order to reclaim the history of race from the Roberts Court, the article assesses a case that more accurately symbolizes the recent history and current status of race relations today: Keyes v. School District No. 1. This was the first Supreme Court case to confront how the binaries of cases like Brown proved of little probative value in addressing how and in what ways race and racial discrimination was changing in the United States. Thus, understanding Keyesand the history it reflects reveals much about how and in what ways the Roberts Court should rethink its conclusions regarding the history of race relations in the United States for the last 60 years.

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Vol. 4 edited by W. Wichers, has imprint: Detroit, Wayne State University Press

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Marine invertebrates representing at least five phyla are symbiotic with dinoflagellates from the genus Symbiodinium. This group of single-celled protists was once considered to be a single pandemic species, Symbiodinium microadriaticum. Molecular investigations over the past 25 years have revealed, however, that Symbiodinium is a diverse group of organisms with at least eight (A-H) divergent clades that in turn contain multiple molecular subclade types. The diversity within this genus may subsequently determine the response of corals to normal and stressful conditions, leading to the proposal that the symbiosis may impart unusually rapid adaptation to environmental change by the metazoan host. These questions have added importance due to the critical challenges that corals and the reefs they build face as a consequence of current rapid climate change. This review outlines our current understanding of the diverse genus Symbiodinium and explores the ability of this genus and its symbioses to adapt to rapid environmental change. (c) 2006 Rubel Foundation, ETH Zurich. Published by Elsevier GmbH. All rights reserved.

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Knowledge of the plan competes with self-consciousness of experience. The less we are able to understand our spatio-visual experience by the abstract coordinates of the plan, the more we are thrust back into a lived experience of the building in duration. This formula, frequently unacknowledged, has been one of the main precepts of the experientialist modernism which arises out of the picturesque and which stands in critique of classical idealism. One of the paths to critique this formula is by showing that the attention to the experience of the spaces in duration is predicated on obscuring, complicating and weakening the apprehension of the plan as a figure. Another development in the practice of modern planning has been architects using a kind of over-drawing where human circulation diagrams or 'movement lines' are drawn expressively across the orthographic plane; thus representing the lived experience of buildings. We will show that these two issues are linked; the plan's weak figure and the privilege this supposes for durational experience has a corollary - experience itself demands to be visible in the plan, and this is one origin of the present fascination with 'diagramming'. In this paper we explore the practice of architectural planning and its theoretical underpinnings in an attempt to show the viability of a history of architectural planning methods.

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Effective school board leadership is often an ephemeral ideal in today's highly politicized public education arena. However, effective leadership is necessary in order to ensure a fair and equitable education for all students. This dissertation described and explained one school board member's perspective of his career as a lens from which to view and assess public educational policy making in Miami-Dade County. ^ Now retired after thirty-eight years of service, G. Holmes Braddock is the longest serving, contemporary, urban school board member in the country. Spanning nearly four decades, his perspective provides a comprehensive view of urban education both locally and nationally. The significance of his longevity and the impact of his leadership on educational policy-making was the focus of indepth interviews with Mr. Braddock and other key educational “influentials.” From this transcript data, recurring themes were revealed and categorized. Five elements of his perspective, i.e., teacher professionalization; desegregation; athletics; bilingual education; and his comprehensive leadership role, were identified and analyzed, as were five variables of his perspective, i.e., fairness; integrity; honesty; courage; and the situational context. Other secondary source material, such as excerpts from newspaper articles, school board minutes, and items from Mr. Braddock's own personal effects further augmented and triangulated the data. ^ Given that the purpose of this study was to describe and explain Mr. Braddock's perspective of his school board career, the findings can be understood from two different viewpoints. The elements of Mr. Braddock's perspective describe or characterize his career and represent the significant policy issues in which he demonstrated exceptional vision and leadership. However, taken alone, these elements cannot fully explain his distinguished career. Rather, an analysis of the variables of Mr. Braddock's perspective provides an explanation for the effectiveness of his leadership role. Personality traits such as fairness, integrity, honesty and courage and the impact of the situational context were factors that strongly influenced Mr. Braddock's decision-making. Thus, Mr. Braddock's school board career can be holistically understood as the intersection of person, place and time with significant public education policy issues. ^ The results of this study provide a unique and historical perspective of school board politics in Miami-Dade County. From Mr. Braddock's perspective, we are able to view one individual's leadership role over time and its impact on local public education policy. ^

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The article examines the practice known as ‘rooftopping photography’ and its significance for the representation of vertical cities. It begins by charting the historical development of architecture as a viewing platform in the age of the camera, and dwells on the imagery of cityscapes from above that emerged in the inter-war period. Against this background, the essay investigates how rooftopping arose out of the urban exploration movement and became a global trend in the early 2010s. This phenomenon is situated within its wider social and cultural context, and is discussed with reference to the online media discourse that contributed to its public visibility. A set of ideas from the philosophy of photography and visual culture inform the critical analysis of rooftopping photographs: this broad and diverse body of images is examined with a focus on two predominant modes of representation—panoramic and plunging views. The affective responses elicited by so-called ‘vertigo-inducing’ images are discussed through the concept of vicarious kinaesthesia, which offers insights into the nexus between visceral experience and visual representation that lies at the core of rooftopping. By unpacking this interplay, the essay explores a phenomenon that has hitherto been given little scholarly attention and reflects on its broader implications for the relationship between photography and architecture today.

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Understanding the flow of diaspores is fundamental for determining plant population dynamics in a particular habitat, and a lack of seeds is a limiting factor in forest regeneration, especially in isolated forest fragments. Bamboo dominance affects forest structure and dynamics by suppressing or delaying the recruitment of and colonization by tree species as well as by inhibiting the survival and growth of adult trees. The goal of the present study was to determine whether dominance of the bamboo species Aulonemia aristulata (Döll) McClure in the forest understory influences species abundance and composition. We examined the seed rain at two noncontiguous sites (1.5 km apart) within an urban forest fragment, with and without bamboo dominance (BD+ and BD- areas, respectively). Sixty seed traps (0.5 m², with a 1-mm mesh) were set in the BD+ and BD- areas, and the seed rain was sampled from January to December 2007. Diaspores were classified according to dispersal syndrome, growth form and functional type of the species to which they belonged. There were significant differences between the two areas in terms of seed density, species diversity and dispersal syndrome. The BD+ area showed greater seed density and species diversity. In both areas, seed distribution was limited primarily by impaired dispersal. Bamboo dominance and low tree density resulted in fewer propagules in the seed rain. Our results suggest that low availability of seeds in the rain does not promote the maintenance of a degraded state, characterized by the presence of bamboo.

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We studied the ecology and natural history of the globally threatened and poorly known Akodon lindberghi Hershkovitz, 1990 in Parque Nacional da Serra da Canastra (PNSC) and Juiz de Fora (JF), southeastern Brazil. From November 1998 to September 2001 a total of 131 individuals were captured in wire-cage live-traps and 52 by pitfalls traps. They were all marked and released at the site. The largest abundances were registered during the dry season, and most of the captures occurred in open habitats. The mean body mass of the two populations was significantly different (18.1 g at PNSC versus 13.1 g at JF; H = 46.2678, g.l.=2, p<0.001). In PNSC, individuals were reproductively active from August to February, and juveniles were present from May to August. The results suggest that the changes in vegetation structure caused by deforestation and intensive agricultural activities could increase the predation rate, affecting the mean body mass of the population.

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The objective of this study was to estimate the regressions calibration for the dietary data that were measured using the quantitative food frequency questionnaire (QFFQ) in the Natural History of HPV Infection in Men: the HIM Study in Brazil. A sample of 98 individuals from the HIM study answered one QFFQ and three 24-hour recalls (24HR) at interviews. The calibration was performed using linear regression analysis in which the 24HR was the dependent variable and the QFFQ was the independent variable. Age, body mass index, physical activity, income and schooling were used as adjustment variables in the models. The geometric means between the 24HR and the calibration-corrected QFFQ were statistically equal. The dispersion graphs between the instruments demonstrate increased correlation after making the correction, although there is greater dispersion of the points with worse explanatory power of the models. Identification of the regressions calibration for the dietary data of the HIM study will make it possible to estimate the effect of the diet on HPV infection, corrected for the measurement error of the QFFQ.

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Cryptosporidium spp. are important cause of enteric disease in humans, but may also infect animals. This study describes the relative frequency of several Cryptosporidium species found in human specimens from HIV infected patients in the São Paulo municipality obtained from January to July 2007. Sequence analysis of the products of nested-PCR based on small subunit rRNA and Cryptosporidium oocyst wall protein coding genes revealed 17 (63.0%) isolates of C. hominis, four (14.8%) C. parvum, five (18.5%) C. felis and one (3.7%) C. canis. These findings suggest that, in urban environments of Brazil, the cat adapted C. felis may play a potential role in the zoonotic transmission of cryptosporidiosis whereas the anthroponotic transmission of cryptosporidiosis caused by C. hominis seems to predominate.

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O objetivo foi estimar as regressões de calibração dos dados dietéticos mensurados pelo questionário quantitativo de freqüência alimentar (QQFA) utilizado no Natural History of HPV Infection in Men: o Estudo HIM. Uma amostra de 98 indivíduos do estudo HIM respondeu, por meio de entrevista, a um QQFA e três recordatórios de 24 horas (R24h). A calibração foi feita por meio de análise de regressão linear, tendo os R24h como variável dependente e o QQFA como variável independente. Idade, índice de massa corporal, atividade física, renda e escolaridade foram utilizadas como variáveis de ajuste nos modelos. As médias geométricas dos R24h e do QQFA corrigido pela calibração são estatisticamente iguais. Os gráficos de dispersão entre os instrumentos demonstraram aumento da correlação após a correção dos dados, porém observa-se maior dispersão dos pontos de acordo com a piora do poder explicativo dos modelos. A identificação das regressões de calibração dos dados dietéticos do estudo HIM permitirá a estimativa do efeito da dieta sobre a infecção por HPV, corrigida pelo erro de medida do QQFA

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Background: Population antimicrobial use may influence resistance emergence. Resistance is an ecological phenomenon due to potential transmissibility. We investigated spatial and temporal patterns of ciprofloxacin (CIP) population consumption related to E. coli resistance emergence and dissemination in a major Brazilian city. A total of 4,372 urinary tract infection E. coli cases, with 723 CIP resistant, were identified in 2002 from two outpatient centres. Cases were address geocoded in a digital map. Raw CIP consumption data was transformed into usage density in DDDs by CIP selling points influence zones determination. A stochastic model coupled with a Geographical Information System was applied for relating resistance and usage density and for detecting city areas of high/low resistance risk. Results: E. coli CIP resistant cluster emergence was detected and significantly related to usage density at a level of 5 to 9 CIP DDDs. There were clustered hot-spots and a significant global spatial variation in the residual resistance risk after allowing for usage density. Conclusions: There were clustered hot-spots and a significant global spatial variation in the residual resistance risk after allowing for usage density. The usage density of 5-9 CIP DDDs per 1,000 inhabitants within the same influence zone was the resistance triggering level. This level led to E. coli resistance clustering, proving that individual resistance emergence and dissemination was affected by antimicrobial population consumption.

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This article is an introduction to the special issue of Sexuality Research & Social Policy, where we share some of the research of our project, ""Relations among 'race,' sexuality and gender in different local and national contexts."" The goal of this project was to develop broad comparative research on race, sexuality, and gender in Brazil, South Africa, and the USA. New signs of identity and contestation were noted during our research. Given the numerous and important changes which are currently in progress in these interlinked fields, we identified important connections between transformations in the symbolic order and social gains, which cannot necessarily be converted into more widespread decreases in social inequality or which can break apart forms of hierarchization and exclusion. The results of our studies in South Africa and Brazil are the focus of this special issue, given that these two contexts are less well known by the American public.