In this study, the team focused on nickel porphyrin as a model molecule and used density ... only shows how low-frequency Raman shifts can detect OOP deformations in porphyrin molecules caused ...

Below this pressure, water returns to its low-density phase; above it ... effects that directly modify the behavior of the water molecules, just as one person influences the behavior of another.

These low masses help explain why polyethylene has a low density. Another reason is that these long skinny molecules are loosely packed together. Polyvinyl chloride is made up of carbon, hydrogen, and ...

A centrifuge was used to separate DNA molecules labeled with isotopes ... what would be the composition (in terms of low- and intermediate-density) of the fourth generation DNA?