O presente trabalho tem como objetivo oferecer algumas reflexões sobre o papel das intervenções e renovações urbanas realizadas em função do turismo no contexto brasileiro, tendo como referência estudos anteriores sobre projetos de intervenção urbana executados no âmbito do Programa de Desenvolvimento do Turismo no Nordeste do Brasil (PRODETUR/NE), que tem no litoral nordestino a concentração de seus investimentos. Adotou-se como hipótese que tais intervenções e projetos de urbanização turística apresentam-se como uma nova fronteira ao processo de acumulação, expansão e reprodução do capital, em razão das características específicas da atividade e do modelo adotado em sua implementação. A base analítica são as transformações espaciais geradas com as ações para o desenvolvimento do turismo, bem como as implicações de ordem social, econômica e espacial decorrentes de tais transformações. As análises estão centradas nas ações do PRODETUR/NE empreendidas na cidade de Natal no Estado do Rio Grande do Norte. A argumentação considera que a distinção e a diferença como requisitos para a atividade turística delimitam territórios e estabelecem regras específicas em sua apropriação. A busca por esta distinção e diferença vem por meio de transformações espaciais e reorganização territorial. Como resultado das transformações espaciais, observa-se, de um lado, o aumento do valor dessas áreas e, de outro, um processo de desterritorialização de práticas sociais e econômicas originais, alijando a população local dos benefícios dos investimentos. Assim o esforço e os investimentos públicos envolvidos no desenvolvimento do turismo não têm sido capazes de sustentar, como propagado no discurso, a melhoria da qualidade de vida das populações locais, ainda que produza alguns benefícios. Ao contrário, o resultado, no espaço intraurbano, é a intensificação do processo de segregação e a fragmentação do tecido urbano, incentivado, promovido e acelerado pela implementação de políticas e recursos públicos.
We study the J/ψ → φK K decay, looking for differences in the production rates of K + K − or K 0 K0 in the region of 1700-1800 MeV, where two resonances appear dynamically generated from the vector-vector interaction. Two resonances are known experimentally in that region, the f0(1710) and a new resonance reported by the BABAR and BESIII collaborations. The K K should be produced with I = 0 in that reaction, but due to the different K * 0 and K * + masses some isospin violation appears. Yet, due to the large width of the K * , the violation obtained is very small and the rates of K + K − or K 0 K0 production are equal within 5%. However, we also find that due to the step needed to convert two vectors into K K, a shape can appear in the K K mass distribution that can mimic the a0 production around the K * K * threshold, and is simply a threshold effect.
The present article examines the relationship between tourism, production of space and the role of residents at two hotspot tourist destinations in Brazil: Cabo Frio, located in State of Rio de Janeiro and Porto Seguro, in State of Bahia. The development of the tourist industry in the localities under study occurred at different points in time. In the first, the urbanization process was associated with the acquisition of second homes in the 1950s, while the second, located in the Northeast region of the country, this process emerged in conjunction with the mass tourism industry only in the late 1980s. We hope this research will enhance understanding of the process of urbanization and the configuration of tourism space and the conflicts arising from this in developing countries, notably Latin America. Our methodology employed theories based on those developed by Chesnais (1996, 2005, 2016), Harvey (2005, 2008, 2011, 2014), Santos (2006) and others to explain the production of space in a way that goes beyond the use of historical data and socioeconomic analysis. The initial conclusion was that, despite the differences in the process (mass tourism vs. second homes, development in space and over time and geographical position), the two geographical locations selected presented the same findings: unequal production of space and the exclusion of local populations. The tourism activity investigated in these two case studies thus appears to replicate the current stage of development in Brazil, characterized by inequality and exclusion and reflected in the landscapes of the country’s tourist destinations.
Nucleus-nucleus collisions offer a great opportunity for analyzing and determining the intrinsic nature of heavy and exotic hadrons. In this sense, here we discuss how the production and dissociation of hadron states are affected by reactions during the expansion of hadronic matter in a heavy-ion collision environment. We give emphasis to recent works on exotic states, revisiting as a case study the time evolution of the abundances of the 0,1 (2900) states.
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