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Polystyrene, Head-to-head

2009
Abstract Preparative Technique H H polystyrene has never been obtained directly from styrene monomer and indirect polymerization techniques have to be used. H–H polystyrene was first synthesized in a four step reaction. It is synthesized by the selective hydrogenation of 1,4-poly(2,3-diphenyl-1,3-butadiene) (PDPB) using potassium/ethanol.
Michael. T Li, Ying Malanga
openaire   +1 more source

Equation head-to-head

Physics World, 2022
Researchers in Canada ran an online tournament pitting famous physics equations against each other. In the final between Maxwell’s equations and Noether’s theorem, Noether’s theorem won with 59% of the vote.
openaire   +1 more source

Head to head

BMJ, 2007
Tom Burns, Joanne Shaw
openaire   +2 more sources

Going Head to Head

2003
When activists miscalculate their strategic approach, their boycotts tend to falter and fade away, squandering important resources and credibility. Similarly, when companies mishandle their nonmarket strategies, they too pay a steep price.
openaire   +1 more source

HEAD ON !*

Journal of School Health, 1948
Harry E. Mock   +2 more
openaire   +1 more source

Head to head

Competitive Intelligence Review, 1992
openaire   +1 more source

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