In the United States railroad industry a hostler is a type of railroad engineer who moves locomotives in and out of service facilities.  1 Hostler - Definition and More from the Free Merriam-Webster Dictionary. 2  EtymologyOnLine- Hostler.  3 909.663-010: HOSTLER (motor trans.) alternate titles: hook-up driver; yard spotter.
The purpose of radioactive seed localization (RSL) of non-palpable lesions is to localize suspicious tissues for excision with the use of radioactive seeds. RSL differs from current localization procedures, whereby a non-radioactive wire is implanted into the lesion site and excised along with the affected tissue.
Relocation diffusion is characterized by physical spread of an idea through the movement of people. Expansion Diffusion includes several types of diffusion. Hierarchal diffusion is spread through a given class, stimulus diffusion is the spread of an idea after reestablishing it after initial failure, and contagious diffusion is the rampant spread of a given idea.