441 resultados para pereiro-do-sertão


Relevância:

10.00% 10.00%

Publicador:

Resumo:

The towns presently named Pombal and Sousa, located in the hinterland of the State of Paraíba, Brazil, still keep vestiges of the colonization process they went through along the 18th and 19th centuries, when they both emerged as settlement nuclei in the extreme West of the then captaincy of Paraíba and attained the status of freguesia and vila in a later period. This research aims to comprehend the process of urban formation and development of the colonial urban nuclei of Pombal and Sousa as they became povoados (hamlets), freguesias (parishes) and vilas (small urban communities with a local government), according to territorial expansion policies implemented by the Portuguese government from 1697 to 1800. The choice of the two urban settlements for this survey lies in the fact that they were part of the great conquest and colonization program undertaken by the Portuguese Crown. Another aspect that was considered was the fact that those towns are the oldest urban nuclei of Paraíba s hinterland. They came into being as early as in the times of the colony, thus producing a favorable environment to the study of the changes that occurred in the captaincy s hinterland scenery resulting from the process of formation and development of the colonial urban space. Three fundamental categories of analysis were defined since they have a direct bearing upon the urban configuration of the two colonization nuclei: povoado, freguesia and vila. The three of them are related to civil and ecclesiastic jurisdictions. Field, documentation and bibliography surveys were undertaken in order to develop the study. They allowed for the finding of vestiges of the old, colonial urban structures and for the development of theoretical analysis based on present-day studies of issues relating to the colonial urban history. The study purposes were, therefore, to try to understand how the old urban nuclei of Pombal and Sousa fit in the territorial expansion policies undertaken by the Portuguese government; to relate the process of urban formation and development of such nuclei with the categories of analysis povoação-freguesia-vila by discussing the relations and influences they exert over one another and their territory, as well as to unveil, as much as possible, the configuration the urban spaces that were shaped along the 18th century

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Droughts surfaced in 1877 as a crucial problem for the birthing Brazilian nation. Engineers, who formed the country's technical and scientific elite, took it upon themselves to study, understand and fight the problem through planned actions of intervention on space. This work, based on proposals and discussions contained in engineering magazines and reports, aims to provide elements for the comprehension of how these systematized actions against droughts, in the Iate nineteenth and early twentieth century, contributed to spatial analysis and the formation of a (then-inexistent) regional and territorial planning discipline in Brazi!. Engineers, by taking up the position of masterminds in the country's modernization, guaranteed for themselves personal economic stability, social prestige and political power. By understanding nature, either as a resource to be exploited or an adversary to national progress, they contributed to the delimitation of the region now known as the Northeast. By seeking to understand the drought phenomenon, they created knowledge about the space they sought to intervene on; by constructing their projects amid political and economical difficulty, they changed the organizational structures of cities and country in the northeast. The proposals for açudes (Iarge water reservoirs) allowed the fixation of population and the resistance against droughts; the roads - railroads and automotive roadways - connected the sertão to the capitais and the coast, speeding up help to the affected populations during droughts and allowing the circulation of goods so as to strengthen the local economies in normal rimes. The adopted practices and techniques, adapted from foreign experience and developed through trial and improvement, were consolidated as an eminently spatial intervention course, even if a theoretical body of regional or territorial planning wasn't formed in Brazil. Regional Planning proper was first applied in the country in the Northeast itself, in the 1950s, based off an economical view of reality in order to achieve development. The engineer's work prior tothat date, however, cannot be dlsconsldered. It was proved that, despite facing financial and political hurdles, engineers had a profound commitment to the problem and intended to act systematically to transform the economical and social relations in the region, in order to be victorious in their struggle against droughts

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This research was motivated by the requirement of asbestos s replacement in building systems and the need to generate jobs and income in the country side of the state of Bahia, Brazil. The project aimed at using fibers from licuri leaves (syagrus coronata), an abundant palm in the region, to produce composites appropriate for the sustainable production of cement fibre reinforced products in small plants. The composites were produced in laboratory using Portland cement CP-II-F32, sand, water, licuri palm fiber contents of 1.0, 1.5 and 2.0% by weight of binder (two different fiber length) and metakaolin. The latter was chosen as an additional binder for its efficiency to reduce the alkalinity of cementitious matrixes therefore preventing the degradation of vegetable fibers. The characterization of the composite components was carried out by sieving and laser particle size analyses, thermal analysis, fluorescence and X-ray diffraction. The composites performance was evaluated by 3- point-bending tests, compressive strength, ultrasound module of elasticity, free and restrained shrinkage, water capillarity absorption and apparent specific gravity. It has been found that the addition of fibers increased the time to onset of cracking over 200.00% and a 25% reduction in cracks opening in the restrained shrinkage test. The capillary absorption reduced about 25% when compared to fiber-free composites. It was also observed with regard to flexural strength, compressive strength and specific gravity, that the addiction of fibers did not affect the composite performance presenting similar results for compounds with and without fibers. In general it can be stated that the reinforced composite fibers of palm licuri presents physical and mechanical characteristics which enable them to be used in the intended proposals of this research

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O objetivo deste trabalho foi coletar espécimes de Apis melífera em três tipos de meloeiro em diferentes horários, buscando identificar os horários de coleta de pólen.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O presente estudo teve como objetivo avaliar o comportamento forrageador de A. mellifera para a coleta de néctar nas flores de meloeiro do tipo amarelo (Cucumis melo Lineu, 1753) ao longo do ano, sem adição de colmeias.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O objetivo deste trabalho foi avaliar o tempo de visita e o recurso forrageado por Apis mellifera nas flores do meloeiro.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Desde o primeiro registro da presença destrutiva de Meloidogyne enterolobii, em 2001, em áreas de goiabeira no Vale do São Francisco (VSF), nos estados da Bahia e de Pernambuco, a ocorrência desse nematoide passou a ter dimensão nacional, sendo relatado em outros 17 estados brasileiros, constituindo-se no principal desafio para a cultura. Práticas de controle do patógeno, como uso de nematicidas, controle biológico, adubações nitrogenadas, plantas não hospedeiras e manejo integrado, têm efeito limitado ou ineficiente (Freitas, 2012). O impacto inicial direto do nematoide na cultura da goiabeira foi estimado em quase US$ 70 milhões em todo o Brasil (Pereira et al., 2009), com redução inicial de até 50% da área plantada no VSF.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O presente estudo teve como objetivo avaliar a compatibilidade de enxertia de goiabeira (Psidium guajava L.) cv. Paluma sobre a jabuticabeira (Myrcia cauliflora Berg), considerando-se o fato de a jabuticabeira ser resistente ao nematoide e pertencer à família das mirtáceas.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O trabalho avaliou a penetração, desenvolvimento e reprodução de M. enterolobii nas raízes de quatro espécies do gênero Psidium (P. guajava cv. Paluma, P. guineense, P. cattleyanum e P. friedrichstalianum) provenientes do Banco Ativo de Germoplasma (BAG) da Embrapa Semiárido em Petrolina, PE.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O Nordeste brasileiro apresenta condições edafoclimáticas favoráveis ao desenvolvimento da fruticultura tropical. No entanto, o número de espécies cultivadas comercialmente ainda é pequeno, criando uma situação de vulnerabilidade econômica. Assim, a diversificação dos cultivos é medida premente e a acerola é uma alternativa interessante, pois seus atributos sensoriais e ingredientes nutracêuticos lhe conferem grande versatilidade de aplicações no mercado de frutos in natura e processados.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Objetivou-se avaliar a qualidade das mudas de goiabeira no município de Petrolina, PE.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O objetivo deste trabalho foi avaliar a presença de Meloidogyne spp. em mudas de aceroleiras formadas em alguns viveiros localizados em Petrolina, PE.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O objetivo deste trabalho foi identificar as espécies de Meloidogyne em áreas de aceroleiras no polo de irrigação Petrolina-Juazeiro.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O objetivo deste trabalho foi realizar o levantamento dos principais fitonematoides nas lavouras de bananeira, obter populações para estudos da diversidade genética e obtenção de genótipos contrastantes para resistência com base em marcadores moleculares.