Arruda: (Ruta graveolens L.)

Publicação com informações sintéticas sobre a arruda e sua aplicação medicinal.bitstream/item/100482/1/Folder-arruda.pd

Combining type I and type II seesaw mechanisms in the minimal 3-3-1 model

The minimal 3-3-1 model is perturbative until energies around 4-5TeV, posing a challenge to generate neutrino masses at eV scale, mainly if one aims to take advantage of the seesaw mechanism. As a means to circumvent this problem we propose a modification of the model such that it accommodates the type I and type II seesaw mechanisms altogether. We show that the conjunction of both mechanisms yield a neutrino mass expression suppressed by a high power of the cutoff scale, $M^5$, in its denominator. With such a suppression term we naturally obtain neutrino masses at eV scale when $M$ is around few TeV. We also investigate the size of lepton flavor violation through the process $\mu \rightarrow e\gamma$.Comment: about 15 pages, no figure

Processos de ingestão de forragem por caprinos em pastagem com Capim-Massai com diferentes alturas.

The objective of this study was to evaluate the forage-intake process of goats feeding on Massai grass pastures with different heights (40, 50, 60, and 70 cm). The experimental design was completely randomized, with treatments corresponding to four sward heights with two replicates over time and space. Collected data were related to the forage-intake process and the chemical and morphological composition of the pasture. Grazing trials (45 min) were performed with four Anglo-Nubian crossbred goats. Total forage mass intake, bite mass, and intake rate were expressed in relation to animal weight. Pasture density, forage mass, and leaf blade increased as forage height increased

Efeito do aumento da temperatura na classificação climática do município de Nossa Senhora da Glória, SE.

Estudos do Painel Intergovernamental de Mudanças Climáticas (IPCC) tem sugerido um incremento da temperatura do ar, que em regiões Semiáridas pode oscilar entre 2 e 5°C (IPCC, 2007). Estas alterações podem ser grandes o suficiente para promover mudanças na tipologia climática de determinados locais e consequentemente na dinâmica dos ecossistemas predominantes, cuja magnitude dos impactos ainda são desconhecidos. Assim, o objetivo deste trabalho foi analisar o impacto do aumento da temperatura na classificação climática do município de Nossa Senhora da Glória ? SE. Para tanto, foram utilizados dados das normais climatológicas de temperatura e precipitação referentes ao período de 1950-2003, para o processamento do balanço hídrico climatológico. A classificação climática adotada foi a de Thornthwaite, sendo analisados neste caso três cenários distintos: Cenário C1: cenário atual (1950-2003); Cenário C2: atual + 1,3°C, e Cenário C3: atual + 3°C. Para os três cenários climáticos em estudo, os dados mensais de precipitação pluviométrica não foram alterados em função da grande variabilidade da precipitação, e principalmente devido às grandes incertezas dos modelos climáticos em simular a precipitação. O clima de Nossa Senhora da Glória foi classificado de acordo com o método de Thornthwaite como sub-úmido seco, com pequeno ou nenhum excesso de água durante o ano, megatérmico, com concentração da evapotranspiração potencial nos meses de novembro, dezembro e janeiro; d) para o cenário de aquecimento de 3,0oC sobre a temperatura média mensal, o clima do município poderá se tornar semiárido, podendo necessitar da adoção de medidas de adaptação dos sistemas de produção agropecuários ao clima mais quente e seco

Production, breeding and potential of cowpea crop in Brazil.

About 50 years ago cowpea was reported as a relatively minor tropical legume. However, in the last years, it has been emerging as one of the most important food legume of the 21st century (SINGH, 2010). Brazil is not out of this panorama. Brazilian agriculture is undergoing major technological changes and, in addition, globalization in agribusiness has caused impacts on the production chain of several crops, particularly those heavily dependent on the use of a large volume of agricultural inputs, mainly fertilizers and pesticides. Such crops have had a higher production cost each year. On the other hand, this situation has brought new opportunities. Business farmers have sought new alternatives for their production arrangements. In this context cowpea constitutes one of the best options.bitstream/item/85620/1/Doc-216-Production.pd

Ancilla-based quantum simulation

We consider simulating the BCS Hamiltonian, a model of low temperature superconductivity, on a quantum computer. In particular we consider conducting the simulation on the qubus quantum computer, which uses a continuous variable ancilla to generate interactions between qubits. We demonstrate an O(N^3) improvement over previous work conducted on an NMR computer [PRL 89 057904 (2002) & PRL 97 050504 (2006)] for the nearest neighbour and completely general cases. We then go on to show methods to minimise the number of operations needed per time step using the qubus in three cases; a completely general case, a case of exponentially decaying interactions and the case of fixed range interactions. We make these results controlled on an ancilla qubit so that we can apply the phase estimation algorithm, and hence show that when N \geq 5, our qubus simulation requires significantly less operations that a similar simulation conducted on an NMR computer.Comment: 20 pages, 10 figures: V2 added section on phase estimation and performing controlled unitaries, V3 corrected minor typo