BACKGROUND: Infection incidence increases with the average number of contacts between susceptible and infected individuals.Contact rates are normally assumed to increase linearly with host density.However, social species seek out each other at low density and saturate their contact rates at high densities.Although predicting epidemic behaviour requ

The lack of proper analytical models of some production processes prevents us from obtaining proper values of process parameters by simply computing optimal values.Possible solutions of control Welding Helmet Accessory problems in such areas of industrial processes can be found using certain methods from the domain of artificial intelligence: neura

Abstract A Oxygen Therapy Accessories surface texture is perceived through both the sound and vibrations produced while being explored by our fingers.Because of their common origin, both modalities have a strong influence on each other, particularly at above 60 Hz for which vibrotactile perception and pitch perception share common neural processes.

There is strong evidence that a major driver of the decline of eastern North American monarch butterflies (Danaus plexippus) is the loss of breeding habitat in the upper midwestern United States.Grasslands, including conservation areas, provide some of the largest remaining tracts of breeding habitat available to monarchs.While grassland conservati

The physiological relevance of the uptake of ligands with no apparent trophic functions via the p75 neurotrophin receptor (p75NTR) remains unclear.Herein, we propose a homeostatic role for this in clearance of amyloid β (Aβ) in the brain.We hypothesize that uptake of Aβ in conjunction with p75NTR followed by its degradati