Search results
Results From The WOW.Com Content Network
In this case, reaction of hexahedral silsesquioxane and CF 3 SO 3 H in DMSO conducted in 1 : 12 molar ratio gives heptahedral silsesquioxane. In the first step CF 3 SO 3 H acid attacks siloxane Si-O-Si bonds and the formation of Si-O-SO 2 CF 3 bond parallel with cage opening process is observed and compound B is obtained (Figure below). Such an ...
Gillette is an American brand of safety razors and other personal care products including shaving supplies, owned by the multi-national corporation Procter & Gamble (P&G). ). Based in Boston, Massachusetts, United States, it was owned by The Gillette Company, a supplier of products under various brands until that company merged into P&G i
For all A P H 4 systems in D 4h symmetry, the ground state is a 1g. The exact electronic configuration, however, is dependent on the electronegativity of the main group element. The distortion to tetrahedral geometry has b 2u symmetry. For these A P H 4 systems, the a 2u →b 1g * and e u →e g * one-electron charge-transfer transitions are ...
This is the list of Schedule I controlled substances in the United States as defined by the Controlled Substances Act. [1] The following findings are required for substances to be placed in this schedule: [2]
The projective plane over K, denoted PG(2, K) or KP 2, has a set of points consisting of all the 1-dimensional subspaces in K 3. A subset L of the points of PG(2, K) is a line in PG(2, K) if there exists a 2-dimensional subspace of K 3 whose set of 1-dimensional subspaces is exactly L.
The conversion from arachidonic acid to prostaglandin H 2 is a two-step process. First, COX-1 catalyzes the addition of two free oxygens to form the 1,2-dioxane bridge and a peroxide functional group to form prostaglandin G 2 (PGG 2). [3] Second, COX-2 reduces the peroxide functional group to a secondary alcohol, forming prostaglandin H 2.
The National Geographic Society – Palomar Observatory Sky Survey (NGS-POSS, or just POSS, also POSS I) was a major astronomical survey, that took almost 2,000 photographic plates of the night sky. It was conducted at Palomar Observatory, California, United States, and completed by the end of 1958. [1] [2]
Unlike traditional point-of-sale setups, virtual POS systems eliminate the need for dedicated hardware, relying instead on software and internet connectivity. These systems are widely used across industries, from small businesses to global retailers, to streamline transactions and integrate with broader business operations with broader business operations.