Staph infections can be deadly if left untreated. By Brook Bowden Special to The North Jefferson News Staphylococcus aureus or âStaphâ is a bacteria which normally lives on your skin and in your nose.It usually doesnât cause problems. However, âStaphâ has been identified as the most common cause of skin infections in the United States. It is most commonly caused by direct skin-to-skin contact.ethicillin-resistant Staphylococcus aureus (MRSA) is a type of staphylococcus or âStaphâ bacteria that is resistant to many antibiotics. MRSA infections are more difficult to treat than ordinary Staph infections.
What does polydispersity mean? The term polydispersity has multiple meanings that are dependent upon the context of its use. In the area of polymer chemistry, polydispersity is defined as the weight average divided by the number average molecular weight (M w /M n), and is used to give the researcher an idea of the breadth or width of the molecular weight distribution.
For a theoretical Gaussian distribution the overall polydispersity would be the relative polydispersity of the distribution. Traditionally, this overall polydispersity has also been converted into an overall polydispersity index PDI which is the square of the light scattering polydispersity.