It is now well established that the visual brain is divided into two visual streams, the ventral and the dorsal stream. Milner and Goodale have suggested that the ventral stream is dedicated for processing vision for perception and the dorsal stream vision for action [A.D. Milner & M.A. Goodale (1995) The Visual Brain in Action, Oxford University Press, Oxford]. However, it is possible that ong...

A central topic of controversy in the search for cortical mechanisms underlying perceptual awareness concerns the fundamental specialization of the visual system into a dorsal "vision-for-action/Where" stream and a ventral "vision-for-perception/What" stream. Specifically, it has been debated whether suppression of visual perception leads to differential reduction in brain activity in the 2 str...

We analyzed the relation of the amount and spatial pattern of land cover with stream fish communities, in-stream habitat, and baseflow in 47 small southeastern Wisconsin, USA, watersheds encompassing a gradient of predominantly agricultural to predominantly urban land uses. The amount of connected impervious surface in the watershed was the best measure of urbanization for predicting fish densi...

Road construction of the Redwood National Park highway bypass resulted in a large accidental infusion of fine sediments into pristine streams in Prairie Creek State Park, California, during an October 1989 storm event. This incident provided a natural experiment where we could measure, compare, and evaluate native stream amphibian densities as indicators of stream ecosystem stress. We employed ...

  The study seeks to address the importance of urban stream ecosystems from the perspective of urban ecology, human health and social well-being in the context of urban planning. The case study area is Paveh stream in the City of Paveh. The data from the case study area were gathered from questionnaire, existing scientific and library studies and by conducting interviews with residents and auth...

The paper considers the problem of audio-visual speech recognition in a simultaneous (target/masker) speaker environment. The paper follows a conventional multistream approach and examines the specific problem of estimating reliable timevarying audio and visual stream weights. The task is challenging because, in the two speaker condition, signal-to-noise ratio (SNR) – and hence audio stream wei...

Background: Identifying age-related changes in cognition that contribute towards reduced driving performance is important for the development of interventions to improve older adults' driving and prolong the time that they can continue to drive. While driving, one is often required to switch from attending to events changing in time, to distribute attention spatially. Although there is extensiv...

1. Introduction Given the fundamental role played by joins in querying relational databases, it is not surprising that stream join has also been the focus of much research on streams. Recall that relational (theta) join between two non-streaming relations R1 and R2, denoted RlweR2, returns thesetofallpairs (rl, r2), whererl E R1, 7-2 E R2, and the join condition 8(rl, r2) evaluates to true. A s...

0164-1212/$ see front matter 2009 Elsevier Inc. A doi:10.1016/j.jss.2009.06.026 * Corresponding author. Tel.: +886 2 27376386; fax E-mail addresses: [email protected] (J.-S. edu.tw (C.-W. Tsai). Thanks to the growing of the wireless networks, the video streaming application becomes a ubiquitous joyful service. In a wireless communication network environment, the service traffic spans acro...