Calyx (anatomy) kidney, a conglomeration of two or three minor calyces to form a major calyx, or the Calyx of Held, a particularly large synapse in the mammalian auditory central nervous system, named by H. Held in his 1893 article "Die centrale Gehörleitung", due to its flower-petal-like shape. In male insects, a funnel-shaped expansion of the basal part of the "vas deferens" (part of the seminal duct). Also in entomology, a flattened cap of neuropile in an insect brain (a component of the corpus pedunculatum) and by certain female insects, an expansion of the oviduct into which the ovarioles open. Calyx (anatomy)
Surround sessions Surround sessions Advertising sequence in which a visitor receives ads from one advertiser throughout an entire site visit. Recently introduced by the online unit of the New York Times, the "surround session" is creating a major buzz in the online advertising community. The session model represents a potentially significant shift in the way advertisers view online media, as more emphasis is placed on the real interaction between advertisers and audiences. In a surround session, an advertiser has all or most of the ads on each page for a visitor's entire site visit. As the visitor moves from page to page,