introduction: in the age of information, in order for offering integrated library services to the users, librarians need to be knowledgable about new web technologies and their applications in library services, especially in medical areas.  this study investigates the level of knowledge and and usage of world wide web in library services among medical librarians in tehran. methods: the present ...

A review is given of the dielectric properties of mammalian tissues for the frequency range 1 Hz to 10 GHz. Such information is of relevance to a number of medical diagnostic and therapeutic applications which involve the use of non-ionizing electromagnetic radiation, as well as to studies of the possible biological effects arising from exposure to electric and magnetic fields. Dielectric studi...