Avaliação dos cenários futuros na região nordeste do Brasil utilizando modelos climáticos globais: tendências de temperatura.

O Nordeste é a região brasileira mais vulnerável ao aquecimento global. Os modelos climáticos globais são a melhor ferramenta para projetar cenários prováveis de alterações climáticas para o futuro, apesar da incerteza envolvida. O objetivo deste trabalho foi realizada uma avaliação da tendência da temperatura média nos cenários futuros previstos pelos modelos climáticos globais do IPCC para região Nordeste do Brasil. Foi realizada uma análise estatística básica dos dados de comparação entre os modelos. Foi possível agrupar os modelos em 5 grupos, desde modelos estimando temperaturas médias comparativamente inferiores em todos os meses a outros com valores superiores em todos os meses.

Métodos de estimação de evapotranspiração para a região nordeste do Brasil.

No estudo da evapotranspiração potencial (ETP) são utilizados métodos que, na maioria dos casos, não se aplicam satisfatoriamente à região Nordeste, entre eles, o método de Thornthwaite, que em condições de extrema aridez ou umidade não produz estimativas confiáveis. O objetivo deste trabalho foi comparar os métodos de Thornthwaite, Camargo original - 1971, Camargo Tef (corrigido pela temperatura media mensal) e Hargreaves e Samani (HS) com o método de Penman-Monteith, padrão FAO, segundo a parametrização de ALLEN et al. (1998). Como critério de comparação, foi utilizado o índice de (c), que considera o viés e precisão das estimativas. Foram observados valores de c inferiores a 0,40 (péssimo) para os métodos de Thornthwaite e Camargo-71 e superiores a 0,80 (muito bom) para Hargreaves-Samani (HS) e Camargo-Tef. No entanto, o método HS apresentou maior freqüência de índices de confiança (c) superiores a 0,80 (muito bom) nas avaliações mensais.

Semeadura direta na produção do milho em agricultura de sequerio na região Nordeste do Brasil.

2011

Avaliação do desempenho agronômico de híbridos de milho na Região Nordeste do Brasil.

2016

Comportamento agronômico de híbridos de milho na região Nordeste do Brasil.

2016

Incentivo fiscal local a cultura: operacionalidade das normas em vigor em São Paulo, Rio de Janeiro e Belo Horizonte

O trabalho compara o lado operacional de três leis municipais de incentivo fiscal à cultura - São Paulo, Rio e Belo Horizonte. Foram escolhidas por estarem entre as mais antigas, por mobilizarem cifras maiores e por apresentarem diferenças significativas em seus procedimentos legais, contábeis e administrativos. Em particular, o texto focaliza a prestação de contas, objeto de insatisfação e queixas por parte de produtores culturais, patrocinadores e dirigentes municipais de cultura e finanças, e sugere medidas de simplificação.

Pobreza multidimensional na região nordeste: uma aplicação da Teoria dos Conjuntos Fuzzy (em 2010)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Estudo das propriedades psicométricas da escala WHOQOLold em idosos da região Nordeste

The population aging process increases the number of elderly people worldwide. In Brazil, a country of continental size, this process began in the 40s and happens with specific features in each of the different region s realities. This way, this thesis aimed to evaluate the psychometric properties of a elderly s quality of life (QOL) scale, the WHOQOL-old, in a population of the Northeast of Brazil. We sought to investigate the congruence between the content covered by the scale and the ones deemed as relevant by the participants. It aimed also study the validity evidences of the instrument s internal structure. To achieve the research objectives we adopted the design of multiple methods. The research was organized in two studies. For data collection, both studies used a sociodemographic questionnaire to obtain a profile of the participants and the Mini Mental State Exam (MMSE), used as exclusion criterion. A number of 18 elderly residents of the cities of Natal-RN and Campina Grande-PB, mean age of 73.3 years (SD = 5.9) took part od the study, They were organized into three focal groups (FG) in witch they discussed about the concept of QOL, what enhance and what hinders QOL. For Study II, a quantitative approach, 335 elderly from Campina Grande responded scale WHOQOL-old. They are between 65 and 99 years (M = 74.17, SD = 6.5). The FG data were analyzed by categorical thematic content. For the data analysis of the WHOQOL-old scale were used exploratory factor analysis and calculation of the Akaike and Bayesian information criteria. The results of both studies were triangulated. According to the discussions in the FG, health and social participation have central roles in quality of life. Social participation is related to all the other QOL s influences raised. The participants indicated the relevance of religiosity and were divided about the importance of sexual activity. Exploratory factor analysis (EFA) extracted a model of six factors. Two items (OLD_3 and OLD_9), not loaded on any factor and were excluded. The other items had factor loadings > 0.3. The response categories were reduced from five to three. After the scale changes, the empirical model showed better fit (-2loglikelihood = 8993.90, BIC and AIC = 9183.90 = 9546.24) than the theoretical model (-2loglikelihood = 18390.88, AIC = 18678.88 and BIC = 19228.11). Despite the best information criterion values, the RMESA remained above the ideal (0.06). We conclude that the WHOQOL-old presents psychometric parameters below the ideal when used with the Northeast population, but the improvements made the scale s use acceptable. The WHOQOL-old uses observable variables that matches with the participants' perceptions on quality of life. However, new strategies must be tested for a better sacale refinement

Impacto do racionamento nos resultados das empresas concessionárias do serviço público de distribuição de energia elétrica: um estudo nas empresas privadas da Região Nordeste

This work verifies the impact caused by the Emergencial Program of Reduction of Consumption of Electric Energy (energy-rationing program) in the results of the concessionary private companies of the public service of electric energy distribution localized in the Northeast Area. As the rationing invigorated from June 2001 to February 2002, its effects are diluted in the results presented by these companies in the second semester of 2001 and first quarter of 2002, with prominence for the last quarter of 2001, when the revenue of extraordinary tariff restore was instituted by the National Agency of Electric Energy (ANEEL), consequence of the so-called General Agreement of the Electric Sector made between the federal government and the companies of the electric sector. The structure of a generic electric sector and a historical review of the Brazilian electric sector from the time it was controlled by the private enterprises, including the State control period, about 1960, and returning to the control of the private enterprises in 1990, under a new regulation structure are presented. An explanation of the models of economic regulation that Brazil used for the electric sector is made, with prominence for the price cap that is the actual effective model. The process of tariff revision foreseen in the concession contracts signed by the federal government and the concessionary companies is presented, highlighting its two stages: the tariff rebalancing that defines the new price cap and the calculation of the factor X that establishes the efficiency goals for the companies. There is made a presentation of the Emergencial Program of Reduction of Consumption of Electric Energy and of the consequent General Agreement of the Electric Sector, which created the revenue of extraordinary tariff restore. A conceptual revision on reviews is presented, regarding to concepts, accomplishment and recognition. A brief review of the six companies that made part of the worked sample is also presented. Analyzing the quarters historical review and of amount of sold energy, it was possible to conclude that the energy-rationing altered the results of the studied companies significantly and that alteration was masked by the accounting process of the revenue of extraordinary tariff restore

Erosividade das chuvas na bacia hidrográfica do Rio Apeú, região nordeste do estado do Pará

Pós-graduação em Agronomia (Agricultura) - FCA