Complex synchronous CSCL environments are dual space environments providing a task space where users “do things” through a set of collaborative tools and a communication space where users “talk of what they do”. The most recent systems provide several tools in each space. In such complex dual space environments, the definition and role of floor-control (FC) has to be clarified. FC can be associ...

In this paper, we empirically analyze two methods for computing the threshold in Fisher’s classifiers. One of these methods, which we call FC or traditional Fisher’s classifier, obtains the threshold by computing the middle point between the two means in the projected space. The second method, which we call FC, obtains the threshold by computing the optimal classifier in the transformed space. ...

We consider the application of distributed space-time coding in wireless sensor networks (WSNs). In particular, sensors use a common noncoherent distributed space-time block code (DSTBC) to forward their local decisions to the fusion center (FC) which makes the final decision. We show that the performance of distributed space-time coding is negatively affected by erroneous sensor decisions caus...

We introduce data structures called responsibility set and kernel. We present an algorithm FCRK, which is a modification of FC that maintains these structures and uses them for pruning of the search space. According to our experimental evaluation, FC-RK outperforms FC-CBJ on constraint networks encoding graph k-coloring instances and on non-dense random binary constraint networks.

It is well known that integration formulas of precision 2fc (2fc + 1) for a region in n-space which is a Cartesian product of intervals can be obtained from onedimensional Radau (Gauss) rules. The number of function evaluations in these product cubatures is (fc + 1) . In this paper, an algorithm is given for obtaining cubatures for hyperrectangles in n-space of precision 2fc, in many instances ...

There are few published data on the effects of housing laying hens at different densities in large furnished cages (FC; a.k.a. enriched colony cages). The objective of this study was to determine the effects of housing laying hens at 2 space allowances (SA) in 2 sizes of FC on measures of production and well-being. At 18 wk of age, 1,218 LSL-Lite hens were housed in cages furnished with a curta...

Functional connectivity (FC) between brain regions is thought to be central to the way in which the brain processes information. Abnormal connectivity is thought to be implicated in a number of diseases. The ability to study FC is therefore a key goal for neuroimaging. Functional connectivity (fc) MRI has become a popular tool to make connectivity measurements but the technique is limited by it...

Functional connectivity (FC) is among the most informative features derived from EEG. However, the most straightforward sensor-space analysis of FC is unreliable owing to volume conductance effects. An alternative-source-space analysis of FC-is optimal for high- and mid-density EEG (hdEEG, mdEEG); however, it is questionable for widely used low-density EEG (ldEEG) because of inadequate surface ...

Production of high-value recombinant proteins in transgenic seeds is an attractive and economically feasible alternative to conventional systems based on mammalian cells and bacteria. In contrast to leaves, seeds allow high-level accumulation of recombinant proteins in a relatively small volume and a stable environment. We demonstrate that single-chain variable fragment (scFv)-Fc antibodies, wi...