A judge has been expected to rule in a court battle between Penney and Macy's over whether Macy's has an exclus | ASSOCIATED PRESS. 24/7 Wall St. : Brick-and-mortar retailers have been suffering from slow economic activity for years, as well as from increased competition from online retailers. The rise in store closings is a prominent sign of their struggles.
Gel electrophoresis is one of the principal tools of molecular biology. The basic principle is that DNA, RNA, and proteins can all be separated by means of an electric field and size.
Quick Answer. The types of tools used by doctors in general include the stethoscope, thermometer, ophthalmoscope, sphygmomanometer, otoscope, reflex hammer and tongue depressor, according to the St. Louis Children's Hospital. Within medicine, different specialists rely on different sets of tools depending on the area of focus.