The paper describes GRAPE-II (Graphical RApid Prototyping Environment), an advanced system level development environment for the specification, compilation, debugging, simulation and emulation of Digital Signal Processing (DSP) applications. GRAPE-II supports the real-time emulation of synchronous multirate applications on heterogeneous target platforms, consisting of multiple TMS320C40 process...

The key to performance improvements in the multicore era is for software to utilize the available concurrency. A recent paper [3] summarizes the challenges and describes twelve so-called dwarfs—types of computing and communication patterns that occur in parallel programs. One of the key points in the paper is that a general programming model has to be able to accommodate all of the patterns def...

BACKGROUND Maternal depression can be harmful to both mothers and their children. Omega-3 polyunsaturated fatty acid (PUFA) supplementation has been investigated as an alternative intervention for pregnant women with depressive symptoms because of the supporting evidence from clinical trials in major depression, the safety advantage, and its anti-inflammatory and neuroplasticity effects. This s...

BACKGROUND AND PURPOSE Although self-expanding intracranial microstents have been used to treat acute middle cerebral artery (MCA) stroke, there are disadvantages associated with placing a permanent endovascular implant. We describe a technique in which a reconstrainable stent was used to provide a temporary endovascular bypass to achieve MCA recanalization without permanent stent implantation....

We use one-and-a-half dimensional particle-in-cell plasma simulations to study the interaction of a relativistic, strongly magnetized wind with an ambient medium. Such an interaction is a plausible mechanism which leads to generation of cosmological γ-ray bursts. We confirm the idea of Mészáros and Rees (1992) that an essential part (about 20%) of the energy that is lost by the wind in the proc...

The last years have seen a revolution in ground-based g-ray detectors. We can now detect the spectra of nearby TeV blazars like Mrk 421 and Mrk 501 out to ∼20 TeV, and during the strongest flares, we can now follow fluctuations in these spectra on timescales close to the shortest ones likely in these objects. We point out that this represents a unique opportunity. Using these and future detecto...

G lobal collaboration on knowledge work, such as product development, is vital in many industries as competition extends across regional borders. Collaborating in such an environment means working between cross-functional, cross-cultural teams separated by time-zone differences and geographical distance. The Internet infrastructure has made global collaboration possible for large numbers of peo...

The decision making process in transportation is often about making a choice between alternative solutions to a problem. To select the best alternative, the decision should be based on results from a careful study of the implications of the alternatives. This paper presents the results of a study comparing two alternative interchange designsDiverging Diamond and Conventional Diamond Interchange...