FOREVER: Fault/intrusiOn REmoVal through Evolution & Recovery

The goal of the FOREVER project is to develop a service for Fault/intrusiOn REmoVal through Evolution & Recovery. In order to achieve this goal, our work addresses three main tasks: the definition of the FOREVER service architecture; the analysis of how diversity techniques can improve resilience; and the evaluation of the FOREVER service. The FOREVER service is an important contribution to intrustion-tolerant replication middleware and significantly enhances the resilience

Indução de brotação apical em mudas provenientes de sementes e do enraizamento de estacas de mangostãozeiro.

Com objetivo de induzir a brotação apical de mudas de mangostãozeiro, foi realizado um experimento que consistiu na aplicação de dois reguladores de crescimento: cinetina (0, 100 e 400 mg L-1) e giberelina (50 mg L-1), e outros dois experimentos para obtenção de estacas enraizadas: a) aplicação de ácido-indol-3-butírico nas concentrações de 0, 100, 500 e 1000 mg L-1 e b) aplicação de ácido a naftaleno acético na concentração de 6000 mg L-1. Nesses ensaios foram utilizadas estacas maduras provenientes de ramos ortotrópicos. Os resultados indicaram a possibilidade do uso de reguladores para a obtenção de porta-enxertos mais uniformes e com menor tempo de formação, e apesar da baixa taxa de enraizamento, a obtenção de mudas de estacas enraizadas de mangostãozeiro obtida com fitormônios apresenta grande potencial, equivalendo em tamanho a uma muda de um ano proveniente de sementes apomíticas

Indução de brotação apical em mudas provenientes de sementes e do enraizamento de estacas de mangostãozeiro.

Com objetivo de induzir a brotação apical de mudas de mangostãozeiro, foi realizado um experimento que consistiu na aplicação de dois reguladores de crescimento: cinetina (0, 100 e 400 mg L-1) e giberelina (50 mg L-1), e outros dois experimentos para obtenção de estacas enraizadas: a) aplicação de ácido-indol-3-butírico nas concentrações de 0, 100, 500 e 1000 mg L-1 e b) aplicação de ácido a naftaleno acético na concentração de 6000 mg L-1

Starch/gellan gum hybrid 3D guidance systems for spinal cord injury regeneration: Scaffolds processing, characterization and biological evaluation

[Excerpt] Spinal cord injury (SCI) represents a significant health and social problem and therefore it is urgent to find strategies that can specifically target this problem. In this sense the objective of the present work was to develop a new range of 3D tubular structures aimed at inducing the regeneration within SCI sites. Up to six different 3D tubular structures were initially developed by rapid prototyping-3D bioplotting–based on a biodegradable blend of starch. The mechanical properties of these structures were assessed by DMA, in both dry and wet conditions, and their morphologies/ porosities analysed by micro-CT and SEM. Afterwards, gellan gum hydrogel was injected in the central area of structures. [...]info:eu-repo/semantics/publishedVersio

Método de avaliação de tolerância à toxidez de alumínio em trigo, em condições de hidroponia, na Embrapa Trigo.

bitstream/CNPT-2010/40685/1/p-do67.pd

A review of hemorheology : measuring technologies and recent advances

Significant progress has been made over the years on the topic of hemorheology, not only in terms of the development of more accurate and sophisticated techniques, but also in terms of understanding the phenomena associated with blood components, their interactions and impact upon blood properties. The rheological properties of blood are strongly dependent on the interactions and mechanical properties of red blood cells, and a variation of these properties can bring further insight into the human health state and can be an important parameter in clinical diagnosis. In this article, we provide both a reference for hemorheological research and a resource regarding the fundamental concepts in hemorheology. This review is aimed at those starting in the field of hemodynamics, where blood rheology plays a significant role, but also at those in search of the most up-to-date findings (both qualitative and quantitative) in hemorheological measurements and novel techniques used in this context, including technical advances under more extreme conditions such as in large amplitude oscillatory shear flow or under extensional flow, which impose large deformations comparable to those found in the microcirculatory system and in diseased vessels. Given the impressive rate of increase in the available knowledge on blood flow, this review is also intended to identify areas where current knowledge is still incomplete, and which have the potential for new, exciting and useful research. We also discuss the most important parameters that can lead to an alteration of blood rheology, and which as a consequence can have a significant impact on the normal physiological behavior of blood

Purely elastic flow instabilities in microscale cross-slot devices

We present an experimental investigation of viscoelastic fluid flow in a cross-slot microgeometry under low Reynolds number flow conditions. By using several viscoelastic fluids, we investigate the effects of the microchannel bounding walls and of the polymer solution concentration on the flow patterns. We demonstrate that for concentrated polymer solutions, the flow undergoes a bifurcation above a critical Weissenberg number (Wi) in which the flow becomes asymmetric but remains steady. The appearance of this elastic instability depends on the channel aspect ratio, defined as the ratio between the depth and the width of the channels. At high aspect ratios, when bounding wall effects are reduced, two types of elastic instabilities were observed, one in which the flow becomes asymmetric and steady, followed by a second instability at higher Wi, in which the flow becomes time-dependent. When the aspect ratio decreases, the bounding walls have a stabilizing effect preventing the occurrence of the steady asymmetric flow and postponing the transition to unsteady flow to higher Wi. For less concentrated solutions, the first elastic instability to steady asymmetric flow is absent and only the time-dependent flow instability is observed

Diversidade genética da soja entre períodos e entre programas de melhoramento no Brasil.

O objetivo deste trabalho foi detectar os efeitos do melhoramento sobre a diversidade do germoplasma da soja cultivada nas três ultimas décadas, por meio da comparação de seis programas de melhoramento e períodos de lançamento de cultivares, utilizando locos microssatélites. Em relação aos programas de melhoramento, todos os locos apresentaram diferenças significativas em suas distribuições alélicas. Alguns locos eram compostos de alelos exclusivos em alguns programas de melhoramento, enquanto outros foram compostos sempre dos mesmos alelos em maior freqüência para todos os programas. A AMOVA indicou maior porção da variância devido a cultivares dentro de programas e somente 5,3% (p0,05). Os resultados sugerem que o germoplasma de soja utilizado em programas de melhoramento no Brasil manteve nível constante de diversidade genética nos últimos 30 anos, além de relativa heterogeneidade de determinados programas.Nome correto do quarto autor ARANTES, N. E