In densely deployed wireless sensor networks (WSN), sensor observations are highly correlated in the space domain. Furthermore, the nature of the physical phenomenon constitutes the temporal correlation between each consecutive observation of a sensor node. These spatial and temporal correlations along with the collaborative nature of the WSN bring significant potential advantages for the devel...

Few security mechanisms in wireless sensor networks (WSNs) have been implemented, and even fewer have been applied in real deployments. The limited resources of each sensor node makes security in WSNs hard, as the tradeoff between security and practicality must be carefully considered. While there are many types of security attacks in WSNs, we have decided to focus our analysis on a particularl...

Video and image sensors in wireless multimedia sensor networks (WMSNs) have directed view and limited sensing angle. So the methods to solve target coverage problem for traditional sensor networks, which use circle sensing model, are not suitable for WMSNs. Based on the FoV (field of view) sensing model and FoV disk model proposed, how expected multimedia sensor covers the target is defined by ...

One of the biggest promises of the Industrial Internet of Things is to leverage real-world data gathered through wireless sensor networks (WSN) to drive higher efficiencies and streamline business practices. The demands on WSNs are diverse, with sensors placed throughout buildings, city streets, industrial plants, tunnels and bridges, moving vehicles or in remote locations such as along pipelin...

Received: 02 March 2012; accepted: 18 March 2012; published online: 02 April 2012. Citation: Kretsinger RH (2012) Neuronal calcium sensor proteins – recognizing a face in a crowd. Front. Mol. Neurosci. 5:41. doi: 10.3389/fnmol.2012.00041 Copyright © 2012 Kretsinger. This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permi...

Wireless sensor networks (WSN) consist of sensor nodes. These sensor nodes have the ability of sensing variety of environment. WSN are very small in size and have limited processing capability and very low battery power. So most of the research is based on to reduce power consumption. One such research direction is data aggregation. Even though energy consumption is an important factor in WSN, ...

Ca2+ ions play a crucial role not only as the trigger for neurotransmitter release, but also in other aspects of brain function, such as short-term and long-term modulation of synaptic efficacy, which may underlie certain forms of learning and memory. The actions of Ca2+ are mediated by Ca(2+)-binding proteins, including a group of proteins known as neuronal calcium sensor (NCS) proteins. The N...

Recoverin is an EF-hand Ca -binding protein that is suggested to control the activity of the G-protein-coupled receptor kinase GRK-1 or rhodopsin kinase in a Ca -dependent manner. It undergoes a Ca -myristoyl switch when Ca binds to EF-hand 2 and 3. We investigated the mechanism of this switch by the use of point mutations in EF-hand 2 (E85Q) and 3 (E121Q) that impair their Ca binding. EF-hand ...