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The pedunculopontine nucleus (PPN) or pedunculopontine tegmental nucleus (PPT or PPTg) is a collection of neurons located in the upper pons in the brainstem. [1] [2] It is involved in voluntary movements, [3] arousal, and provides sensory feedback to the cerebral cortex and one of the main components of the ascending reticular activating system.
Bis(triphenylphosphine)iminium chloride is the chemical compound with the formula [((C 6 H 5) 3 P) 2 N]Cl, often abbreviated [(Ph 3 P) 2 N]Cl, where Ph is phenyl C 6 H 5, or even abbreviated [PPN]Cl or [PNP]Cl or PPNCl or PNPCl, where PPN or PNP stands for (Ph 3 P) 2 N.
Head of statue, Jericho, from c. 9000 years ago.Displayed at the Rockefeller Archeological Museum in Jerusalem.. Cultural tendencies of this period differ from that of the earlier Pre-Pottery Neolithic A (PPNA), in that people living during this phase began to depend more heavily upon domesticated animals to supplement their earlier mixed agrarian and hunter-gatherer diet.
The Pre-Pottery Neolithic is divided into Pre-Pottery Neolithic A (10000 – 8800 BCE) and the following Pre-Pottery Neolithic B (8800 – 6500 BCE). [1] [5] PPNB differed from PPNA in showing greater use of domesticated animals, a different set of tools, and new architectural styles.
A protoplanetary nebula or preplanetary nebula [1] (PPN, plural PPNe) is an astronomical object which is at the short-lived episode during a star's rapid evolution between the late asymptotic giant branch (LAGB) phase and the subsequent planetary nebula (PN) phase. A PPN emits strongly in infrared radiation, and is a kind of reflection nebula.
Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
This Optimum customer service facility in Freehold Township, New Jersey, has existed during both the Cablevision and Altice eras. Introduced in 2018 on Long Island and then extended through its service area, Altice One is the company's flagship home entertainment platform, and combines broadband internet access, television, VOIP telephone service, and various streaming applications. [2]