The expression of SNAP-25 fused to green fluorescent protein (GFP) has been instrumental in demonstrating SNARE role in exocytosis. The wild-type GFP-SNAP-25 and a Delta9 form, product of botulinum neurotoxin A activity, the main ingredient in the BOTOX preparation, were employed here to study SNARE implication in vesicle mobility and fusion in cultured bovine chromaffin cells, a neuroendocrine...

Fusion of remote sensing images with different spatial and temporal resolutions is highly needed by diverse earth observation applications. A small number of spatiotemporal fusion methods using sparse representation appear to be more promising than traditional linear mixture methods in reflecting abruptly changing terrestrial content. However, one of the main difficulties is that the results of...

Providing some techniques to enhance the performance of spectrum sensing in cognitive radio systems while accounting for the cost and bandwidth limitations in practical scenarios is the main objective of this thesis. We focus on an essential element of cooperative spectrum sensing (CSS) which is the data fusion that combines the sensing results to make the final decision. Exploiting the advanta...

Continuing investigations of multiphoton ionization processes in napliL..dene have established the geometry and spectroscopy of trimer and tetramer cluster states. A new, highly efficient ionization mechanism has been identified in the trimer. It is Closely related to autoionization of 2-electron atoms by resonant 2-photon excitation and to exciton fusion in larger clusters.

HeteroSort load balances and sorts within static or dynamic networks using a conceptual torus mesh. We ported HeteroSort to a 16-node Beowulf cluster with a central switch architecture. By capturing global system knowledge in overlapping microregions of nodes, HeteroSort is useful in data dependent applications such as data information fusion on distributed processors.

An important challenge in wireless sensor networks (WSN) is that how to disseminate data packets from sensor nodes to base station energy efficiently. Inspiring data fusion, an outstanding feature of clustering approach, and multi-hop routing, in this paper, we propose a clustering approach called PLIR (Prolonging Network Lifetime via Intra-Cluster Routing) for saving energy and distributing da...

The arsenic resistance gene cluster of Microbacterium sp. A33 contains a novel pair of genes (arsTX) encoding a thioredoxin system that are cotranscribed with an unusual arsRC2 fusion gene, ACR3, and arsC1 in an operon divergent from arsC3. The whole ars gene cluster is required to complement an Escherichia coli ars mutant. ArsRC2 negatively regulates the expression of the pentacistronic operon...

The validity of the assumption on the predominant contribution of the stepwise processes to the ionic micelle formation/destruction in the vicinity of critical micelle concentration was investigated by molecular dynamics simulation. A coarse-grained model was used to describe the surfactant/water mixture. The cluster size distribution was estimated directly from molecular dynamics simulations o...

In information retrieval (IR), many techniques are used by systems to improve their efficiency in the retrieval process. In this paper, we consider13 linguistic features for queries clustering (Mothe et al., 2005). Queries are TREC 3, 5, 6 and 7 topics. We then associate to each cluster a system that will be used for all queries in this cluster. Results show that P@15 can be improved for exampl...

A 5-layer hierarchy of system characteristics is proposed: (1) input-output, (2) input-output relationships, (3) system functions, (4) system function clusters; (5) digraph of system function clusters. The following problems are examined for layers 3, 4, and 5: synthesis of a test case for a system function cluster; scheduling of test cases; design of test case sequence for a chain of system fu...