Orientações tecnicas para o cultivo do maracuja em Roraima.

Solo e clima. Variedades. Formacao de mudas. Etapas do plantio. Tratos culturais. Pragas e doencas. Colheita e embalagem.bitstream/item/131653/1/maracujaCIT.pd

A cultura do abacateiro.

Origem. Botanica. Variedades. Clima e solo. Propagacao e formacao do pomar. Tratos culturais e adubacao. Pragas e doencas. Colheita, comercializacao e utilizacao. Rendimento.bitstream/item/131654/1/abacateiroCIT.pd

A cultura da acerola para o Estado de Roraima.

Clima. Solos. Cultivares. Propagacao. Plantio. Irrigacao. Controle de invasoras. Poda. Adubacao de manutencao. Controle de pragas e doencas. Colheita. Importancia social.bitstream/item/131649/1/AcerolaCIT.pd

Oscillatory dynamics of a superconductor vortex lattice in high amplitude ac magnetic fields

In this work we study by ac susceptibility measurements the evolution of the solid vortex lattice mobility under oscillating forces. Previous work had already shown that in YBCO single crystals, below the melting transition, a temporarily symmetric magnetic ac field (e.g. sinusoidal, square, triangular) can heal the vortex lattice (VL) and increase its mobility, but a temporarily asymmetric one (e.g. sawtooth) of the same amplitude can tear the lattice into a more pinned disordered state. In this work we present evidence that the mobility of the VL is reduced for large vortex displacements, in agreement with predictions of recent simulations. We show that with large symmetric oscillating fields both an initially ordered or an initially disordered VL configuration evolve towards a less mobile lattice, supporting the scenario of plastic flow.Comment: 5 pages, 4 figures. To appear in Phys. Rev.

Factors associated with loss to follow-up in Tuberculosis treatment in the Huambo Province, Angola

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Non universality of entanglement convertibility

Recently, it has been suggested that operational properties connected to quantum computation can be alternative indicators of quantum phase transitions. In this work we systematically study these operational properties in 1D systems that present phase transitions of different orders. For this purpose, we evaluate the local convertibility between bipartite ground states. Our results suggest that the operational properties, related to non-analyticities of the entanglement spectrum, are good detectors of explicit symmetries of the model, but not necessarily of phase transitions. We also show that thermodynamically equivalent phases, such as Luttinger liquids, may display different convertibility properties depending on the underlying microscopic model.Comment: 5 pages + references, 4 figures - improved versio