Prevenção e tratamento de doenças dos caprinos.

Apresentação; Algumas orientações sobre as doenças dos caprinos; Como prevenir e tratar as doenças dos caprinos; Umbiqueira; Como evitar a umbigueira; Boqueira; Como tratar a boqueira; Caroço; Como tirar o caroço; Verminose; Como evitar a verminose; Piolhos; Como tratar os piolhos; Caspa do ouvido; Como tratar a caspa do ouvido; Bicheira; Evite a bicheira na criação cuidando sempre das feridas que aparecem nos animais; Bexiga; Cuidados necessários; Outros cuidados para evitar doenças nas criações.bitstream/item/210385/1/Prevencao-e-tratamento-de-doencas-dos-caprinos.pd

Quantum criticality in inter-band superconductors

In fermionic systems with different types of quasi-particles, attractive interactions can give rise to exotic superconducting states, as pair density wave (PDW) superconductivity and breached pairing. In the last years the search for these new types of ground states in cold atom and in metallic systems has been intense. In the case of metals the different quasi-particles may be the up and down spin bands in an external magnetic field or bands arising from distinct atomic orbitals that coexist at a common Fermi surface. These systems present a complex phase diagram as a function of the difference between the Fermi wave-vectors of the different bands. This can be controlled by external means, varying the density in the two-component cold atom system or, in a metal, by applying an external magnetic field or pressure. Here we study the zero temperature instability of the normal system as the Fermi wave-vectors mismatch of the quasi-particles (bands) is reduced and find a second order quantum phase transition to a PDW superconducting state. From the nature of the quantum critical fluctuations close to the superconducting quantum critical point (SQCP), we obtain its dynamic critical exponent. It turns out to be $z=2$ and this allows to fully characterize the SQCP for dimensions $d \ge 2$.Comment: 5 pages, 1 figur

O modelo de inovação aberta no apoio ao desenvolvimento regional - O caso do Proeta.

Open Innovation is a collaborative organizational strategy to stimulate regional development. Based on this model, Embrapa created Proeta, where it transfers technology to newly created companies with the support of incubators. This study aimed to present the PROETA’ actions to stimulate the entrepreneurship and regional development through the open innovation model. The research is descriptive to multiple case study. It was observed that Proeta has assisted in regional developing by promoting actors integration, technology transfer that increase value to traditional products, increase of the competitiveness of the industry and search for new opportunities through knowledge exchange among brazilian regions. The results indicate the Proeta’s potential to encourage innovation and regional development, with partnerships among institutions, showing the consolidation of the opened innovation model that has been implemented

Fluctuations in a superconducting quantum critical point of multi-band metals

In multi-band metals quasi-particles arising from different atomic orbitals coexist at a common Fermi surface. Superconductivity in these materials may appear due to interactions within a band (intra-band) or among the distinct metallic bands (inter-band). Here we consider the suppression of superconductivity in the intra-band case due to hybridization. The fluctuations at the superconducting quantum critical point (SQCP) are obtained calculating the response of the system to a fictitious space and time dependent field, which couples to the superconducting order parameter. The appearance of superconductivity is related to the divergence of a generalized susceptibility. For a single band superconductor this coincides with the \textit{Thouless criterion}. For fixed chemical potential and large hybridization, the superconducting state has many features in common with breached pair superconductivity with unpaired electrons at the Fermi surface. The T=0 phase transition from the superconductor to the normal state is in the universality class of the density-driven Bose-Einstein condensation. For fixed number of particles and in the strong coupling limit, the system still has an instability to the normal sate with increasing hybridization.Comment: 10 pages, 8 figure

Observações sobre a produção animal na região de Ouricuri-PE.

Numa tentativa de contribuir para o conhecimento de alguns aspectos da produção animal nas regiões semiáridas do Nordeste, desenvolveu-se algumas observações na região de Ouricuri, Estado de Pernambuco, que possui um rebanho representativo para o estado.bitstream/item/177923/1/FL-05159.pd

Observações sobre a produção animal na região de Ouricuri-PE.

Numa tentativa de contribuir para o conhecimento de alguns aspectos da produção animal nas regiões semiáridas do Nordeste, desenvolveu-se algumas observações na região de Ouricuri, Estado de Pernambuco, que possui um rebanho representativo para o estado.bitstream/item/177923/1/FL-05159.pd

Estimativa e espacialização da umidade relativa do ar no Estado do Piauí.

Este trabalho teve como objetivo obter uma equação de regressão a fim de se estimar a umidade relativa do ar, através da correlação dos dados existentes desse parâmetro com os elementos do balanço hídrico climático e, apresentar a distribuição espacial da umidade relativa do ar para o estado do Piauí

Pressure induced FFLO instability in multi-band superconductors

Multi-band systems as intermetallic and heavy fermion compounds have quasi-particles arising from different orbitals at their Fermi surface. Since these quasi-particles have different masses or densities, there is a natural mismatch of the Fermi wave-vectors associated with different orbitals. This makes these materials potential candidates to observe exotic superconducting phases as Sarma or FFLO phases, even in the absence of an external magnetic field. The distinct orbitals coexisting at the Fermi surface are generally hybridized and their degree of mixing can be controlled by external pressure. In this Communication we investigate the existence of an FFLO phase in a two-band BCS superconductor controlled by hybridization. At zero temperature, as hybridization (pressure) increases we find that the BCS state becomes unstable with respect to an inhomogeneous superconducting state characterized by a single wave-vector q.Comment: 5 pages, 1 figur