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.
1 Examples are ultrasound and MRI machines, PET and CT scanners, and x-ray machines. 2  Treatment equipment includes infusion pumps, medical lasers and LASIK surgical machines. 3  Life support equipment is used to maintain a patient's bodily function.here are several basic types: 1  Diagnostic equipment includes medical imaging machines, used to aid in diagnosis. 2  Examples are ultrasound and MRI machines, PET and CT scanners, and x-ray machines. 3  Treatment equipment includes infusion pumps, medical lasers and LASIK surgical machines.