Emergency vehicle lighting is one or more visual warning lights fitted to a vehicle for use when the driver wishes to convey to other road users the urgency of their journey, to provide additional warning of a hazard when stationary, or in the case of law enforcement as a means of signalling another driver to stop for interaction with an officer.
Grossular dodecahedron, .7 cm across, from Coahuila, Mexico. Grossular is a calcium-aluminium species of the garnet group of minerals. It has the chemical formula of Ca3Al2(SiO4)3 but the calcium may, in part, be replaced by ferrous iron and the aluminium by ferric iron.
glomerular. pertaining to or of the nature of a glomerulus, especially a renal glomerulus. glomerular basement membrane. the structure located between endothelial cells of renal capillaries and the visceral epithelial cells of the glomerulus.It functions as a barrier to filtration of large molecules.n normal subjects the capillary endothelium of the glomerulus, by virtue of its fenestration, is permeable to all blood constituents except blood cells and colloids so that the glomerular filtrate has a close similarity to plasma and interstitial fluid but has a lower protein concentration than both of them.