Neurochemical and morphological evidence has shown that some neurotransmitters or substances may be released from both synaptic and nonsynaptic sites for diffusion to target cells more distant than those observed in regular synaptic transmission. There are functional interactions between neurons without synaptic contacts, and matches between release sites and localization of receptors sensitive...

The neurovascular unit, composed of neurons, brain endothelial cells, pericytes, microglia, and astrocytes, regulates cerebral blood flow. physical chemical signals govern the physiology unit within network its cellular components. Astrocytes have an essential role in this since they a privileged anatomical relationship with rest cells. They are capable sensing released by their neighboring rel...

The objective of this article is to show the application a supervision, control and acquisition system an industrial network chemical products, for which design logic architecture on Profibus-DP protocols described Ethernet, with peripheral terminal station ET-200, through Siemens CP433 programmable controller level sensor sensors, coupled radar-type transmitters accuracy ± 0.5 mm. As findings ...

Disorders such as chronic fatigue syndrome (CFS) and gulf war syndrome (GWS) are characterised by prolonged fatigue and a range of debilitating symptoms of pain, intellectual and emotional impairment, chemical sensitivities and immunological dysfunction. Sudden infant death syndrome (SIDS) surprisingly may have certain features in common with these conditions. Post-infection sequelae may be pos...

In this paper, the parallel multiple access channel (MAC) is studied under the assumption that transmitters maximize their individual spectral efficiency by selfishly tuning their power allocation policy. Two particular scenarios are studied: (a) transmitters are allowed to use all the available channels; and (b) transmitters are constrained to use a single channel. Both scenarios are modeled b...

This article examines methods for and results of determining the instantaneous kinematic state a target, i.e., its velocity heading, using passive multistatic radar. is achieved by combining bistatic target range Doppler information obtained multiple transmitter-receiver pairs, to estimate appropriate vector. estimation provided as set closed-form equations, derived general case applicable an a...

We consider a generalization of the classical Art Gallery Problem, where instead of a light source, the guards, called k-transmitters, model a wireless device with a signal that can pass through at most k walls. We show it is NP-hard to compute a minimum cover of point 2transmitters, point k-transmitters, and edge 2-transmitters in a simple polygon. The point 2transmitter result extends to orth...

The paper describes a 3D acoustic imaging system that uses a 2D receiver array and a 2D transmitter array. For many years, high quality acoustic imaging has been achieved by using synthetic transmit aperture (STA) technique [1][2]. Normally, STA uses an array of receivers and a small number of transmitters to produce an image. However, the conventional arrangement of transmitters in a same hori...

We investigated the levels of radio frequency electromagnetic fields (RF EMFs) emitted from marine ship transmitters. In this study, we recorded the radio frequency (RF) electric field (EF) levels emitted from transmitters from a marine vessel focusing on the areas normally occupied by crew members and passengers. Previous studies considered radiation hazard safety assessment for marine vessels...