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Pergolide, sold under the brand name Permax and Prascend (veterinary) among others, is an ergoline-based dopamine receptor agonist used in some countries for the treatment of Parkinson's disease. Parkinson's disease is associated with reduced dopamine synthesis in the substantia nigra of the brain .
The first organoaluminium compound with an Al-Al bond was reported in 1988 as (((Me 3 Si) 2 CH) 2 Al) 2 (a dialane). They are typically prepared reduction of the dialkylaluminium chlorides by metallic potassium: [6] (R 2 AlCl) 2 + 2 K → R 2 Al-AlR 2 + 2 KCl. Another notable group of alanes are tetraalanes containing four Al(I) centres.
This means a roof coating actually becomes the top layer of a composite roof membrane and underlying system. As such, the roof coating is the topmost layer of protection for the membrane, receiving the impact of sunlight (both infrared and ultraviolet (UV)), rain, hail and physical damage. Roof Coatings should not be confused with deck coatings.
Aluminium oxynitride (marketed under the name ALON by Surmet Corporation [3]) is a transparent ceramic composed of aluminium, oxygen and nitrogen.Aluminium oxynitride is optically transparent (≥80% for 2 mm thickness) in the near-ultraviolet, visible, and mid-wave-infrared regions of the electromagnetic spectrum.
Kate Middleton's annual Christmas Carol on Friday, December 6 included numerous members of the extended royal family in attendance. Sophie Winkleman, who is married to Lord Frederick Windsor, the ...
Aluminium (British and IUPAC spellings) or aluminum (North American spelling) combines characteristics of pre- and post-transition metals. Since it has few available electrons for metallic bonding, like its heavier group 13 congeners, it has the characteristic physical properties of a post-transition metal, with longer-than-expected interatomic ...
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