Concurrent focal-plane generation of compressed samples fromtime-encoded pixel values

Compressive sampling allows wrapping the relevant content of an image in a reduced set of data. It exploits the sparsity of natural images. This principle can be employed to deliver images over a network under a restricted data rate and still receive enough meaningful information. An efficient implementation of this principle lies in the generation of the compressed samples right at the imager. Otherwise, i. e. digitizing the complete image and then composing the compressed samples in the digital plane, the required memory and processing resources can seriously compromise the budget of an autonomous camera node. In this paper we present the design of a pixel architecture that encodes light intensity into time, followed by a global strategy to pseudo-randomly combine pixel values and generate, on-chip and on-line, the compressed samples.Ministerio de Economía y Competitividad TEC 2015-66878-C3-1-RJunta de Andalucía TIC 2338-2013Office of Naval Research (USA) N000141410355CONACYT (Mexico) MZO-2017-29106

Nitrogen applied in okra under non-tightness grown and residual fertilization.

The aim of this study was to evaluate, in the Amazonian rainy season, the effect of nitrogen applied in okra under non-tightness grown and residual fertilization

Gut Microbiota as Potential Therapeutic Target for the Treatment of Cow’s Milk Allergy.

Cow's milk allergy (CMA) continues to be a growing health concern for infants living in Western countries. The long-term prognosis for the majority of affected infants is good, with about 80% naturally acquiring tolerance by the age of four years. However, recent studies suggest that the natural history of CMA is changing, with an increasing persistence until later ages. The pathogenesis of CMA, as well as oral tolerance, is complex and not completely known, although numerous studies implicate gut-associated immunity and enteric microflora, and it has been suggested that an altered composition of intestinal microflora results in an unbalanced local and systemic immune response to food allergens. In addition, there are qualitative and quantitative differences in the composition of gut microbiota between patients affected by CMA and healthy infants. These findings prompt the concept that specific beneficial bacteria from the human intestinal microflora, designated probiotics, could restore intestinal homeostasis and prevent or alleviate allergy, at least in part by interacting with the intestinal immune cells. The aim of this paper is to review what is currently known about the use of probiotics as dietary supplements in CMA

Índices agronômicos na cebolinha com doses de sulfato de amônio.

Este trabalho objetivou estudar índices agronômicos na cebolinha, com doses de sulfato de amônio (SA) em cobertura, em um Argissolo Amarelo, textura média.Edição dos Resumos do 52º Congresso Brasileiro de Olericultura, Salvador, jul. 2012

Crescimento e produção em quiabeiro com doses de nitrogênio.

O crescimento e a produção do quiabeiro são afetados pela deficiência de N. Objetivou-se avaliar, no período chuvoso amazônico, em Argissolo Amarelo distrófico textura média, o efeito de doses de uréia em cobertura sobre atributos do crescimento e de produção da cv. híbrida Dardo, incluindo-se a cv. não-híbrida Santa Cruz-47 e o esterco de galinha como fatores adicionais. O ensaio foi conduzido na Embrapa Amazônia Ocidental, Iranduba-AM, de outubro/2010 a fevereiro/2011

Potencial dos pequenos e médios proprietários do estado do Paraná para a implantação de projetos florestais.

EVINCI. Resumo 038

Experimental Investigation of the Evolution of Gaussian Quantum Discord in an Open System

Gaussian quantum discord is a measure of quantum correlations in Gaussian systems. Using Gaussian discord we quantify the quantum correlations of a bipartite entangled state and a separable two-mode mixture of coherent states. We experimentally analyze the effect of noise addition and dissipation on Gaussian discord and show that the former noise degrades the discord while the latter noise for some states leads to an increase of the discord. In particular, we experimentally demonstrate the near-death of discord by noisy evolution and its revival through dissipation.Comment: 5 pages, 5 figure

Altura e suprimento de nitrogênio afetando a Plutella xylostella na couve-de-folhas sob cobertura plástica.

O objetivo desse trabalho foi estudar a influência da altura e do forneciento de N sobre o ataque dessa traça em plantas de couve (cv. hi-crop) cultivadas em vasos, dentro de cultivo dessa brassicácea sob cobertura plástica.Edição dos Resumos do 52º Congresso Brasileiro de Olericultura, Salvador, jul. 2012

CMOS-3D smart imager architectures for feature detection

This paper reports a multi-layered smart image sensor architecture for feature extraction based on detection of interest points. The architecture is conceived for 3-D integrated circuit technologies consisting of two layers (tiers) plus memory. The top tier includes sensing and processing circuitry aimed to perform Gaussian filtering and generate Gaussian pyramids in fully concurrent way. The circuitry in this tier operates in mixed-signal domain. It embeds in-pixel correlated double sampling, a switched-capacitor network for Gaussian pyramid generation, analog memories and a comparator for in-pixel analog-to-digital conversion. This tier can be further split into two for improved resolution; one containing the sensors and another containing a capacitor per sensor plus the mixed-signal processing circuitry. Regarding the bottom tier, it embeds digital circuitry entitled for the calculation of Harris, Hessian, and difference-of-Gaussian detectors. The overall system can hence be configured by the user to detect interest points by using the algorithm out of these three better suited to practical applications. The paper describes the different kind of algorithms featured and the circuitry employed at top and bottom tiers. The Gaussian pyramid is implemented with a switched-capacitor network in less than 50 μs, outperforming more conventional solutions.Xunta de Galicia 10PXIB206037PRMinisterio de Ciencia e Innovación TEC2009-12686, IPT-2011-1625-430000Office of Naval Research N00014111031