Estabilidade da produção de variedades de mangueira em vertissolo irrigado no Submédio São Francisco.

O presente trabalho teve o o bjetivo de coletar os dados por dezoito ciclos, avaliando a produção, o peso médio de frutos por planta e o número de frutos por planta

Accuracy of a teleported trapped field state inside a single bimodal cavity

We propose a simplified scheme to teleport a superposition of coherent states from one mode to another of the same bimodal lossy cavity. Based on current experimental capabilities, we present a calculation of the fidelity that can be achieved, demonstrating accurate teleportation if the mean photon number of each mode is at most 1.5. Our scheme applies as well for teleportation of coherent states from one mode of a cavity to another mode of a second cavity, both cavities embedded in a common reservoir.Comment: 4 pages, 2 figures, in appreciation for publication in Physical Review

Insetos prejudiciais ao açaizeiro e seus controles.

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Levantamento de pragas em acessos de açaizeiro.

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Avaliação de insetos fitófagos em acessos de açaizeiro.

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Sensory evaluation and cooking properties of macaroni at basis of brazil nut (Bertholetia excelsa) and peach palm fruit (Bactris gasipaes, Kunt) flours.

The Brazil nut tree, Bertholletia excelsa HBK, is explored throughout the Amazon region and its main characteristic is high content of lipids and proteins, they consist of sulfur amino acids of high biological value. The peach palm, Bactris gasipases, Kunth, is a native palm to the same region, that is grown for heart-of-palm extraction. Their fruits are mostly protein, vitamin A and fiber. The way of adding commercial value from co-products to Brazil nut processing is flour productian. That way the Brazil nut flour, for its high nutritional value and pleasant taste was used in macaroni production, along with peach palm fruit flour to improve the nutritianal properties of final product

Experimental investigation of linear-optics-based quantum target detection

The development of new techniques to improve measurements is crucial for all sciences. By employing quantum systems as sensors to probe some physical property of interest allows the application of quantum resources, such as coherent superpositions and quantum correlations, to increase measurement precision. Here we experimentally investigate a scheme for quantum target detection based on linear optical measurment devices, when the object is immersed in unpolarized background light. By comparing the quantum (polarization-entangled photon pairs) and the classical (separable polarization states), we found that the quantum strategy provides us an improvement over the classical one in our experiment when the signal to noise ratio is greater than 1/40, or about 16dB of noise. This is in constrast to quantum target detection considering non-linear optical detection schemes, which have shown resilience to extreme amounts of noise. A theoretical model is developed which shows that, in this linear-optics context, the quantum strategy suffers from the contribution of multiple background photons. This effect does not appear in our classical scheme. By improving the two-photon detection electronics, it should be possible to achieve a polarization-based quantum advantage for a signal to noise ratio that is close to 1/400 for current technology.Comment: comments are welcome, submitted to PR