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Incerteza de medição em análises micotoxicológicas: estimativa pelas abordagens Bottom up, Monte Carlo e Kragten
(Universidade Federal de Santa MariaBRMedicina VeterináriaUFSMPrograma de Pós-Graduação em Medicina Veterinária, 2015-03-06)
Different approaches for the estimation of the uncertainty related to measurement results are found in the literature and in published guidelines. In the present work three approaches were used to estimate the uncertainty ...
Bottom-up modulation within the scope of consumers´ visual perception: the effect of previous ocular fixations on the perception of bistable logotypes
Bistable images are visual stimuli that have the particular characteristic of being
interpreted in two different ways. Due to their physical characteristics, these images, while being
observed, encourage the observer to ...
Bottom-up effects may not reach the top: the influence of ant-aphid interactions on the spread of soil disturbances through trophic chains
(The Royal Society, 2012-06-20)
Soil disturbances that increase nutrient availability may trigger bottom-up cascading effects along trophic chains. However, the strength and sign of these effects may depend on attributes of the interacting species. Here, ...
Physical stress modifies top-down and bottom-up forcing on plant growth and reproduction in a coastal ecosystem
(Ecological Society of America, 2015-08)
Bottom-up and top-down effects act together to exert strong control over plant growth and reproduction, but how physical stress modifies those interactive forces remains unclear. Even though empirical evidence is scarce, ...
Top-down and bottom-up regulation of planktonic communities in a warm temperate wetland
(Oxford University Press, 2010-02)
This field experimental study simultaneously analysed the effects of predation (top-down) and nutrients (bottom-up) on planktonic communities (phytoplankton, zooplankton, heterotrophic nanoflagellates and ciliates) in a ...
Bottom-up multitrophic effects in resprouting plants
(Ecological Soc AmerWashingtonEUA, 2012)
An object-based visual selection model combining physical features and memory
(Universidade de São Paulo - USPUniversidade Federal de São Carlos - UFSCarCentro de Robótica de São Carlos - CROBSociedade Brasileira de Computação - SBCSociedade Brasileira de Automática - SBASão Carlos, 2014-10)
In this paper, a new visual selection model is proposed, which combines both early visual features and object-based visual selection modulations. This model integrates three main mechanisms. The first is responsible for ...
A framework for bottom-up induction of oblique decision trees
(ElsevierAmsterdam, 2014-07-05)
Decision-tree induction algorithms are widely used in knowledge discovery and data mining, specially in scenarios where model comprehensibility is desired. A variation of the traditional univariate approach is the so-called ...