Immediately check the publisher of the work. How to Detect Bias in Publishers (on the web). A publisher is the agency that prints the material writers submit, and therefore a publisher isn t just an agency that prints books or magazines. You can consider web sites and news agencies as publishers, too.
Definition of objective. 1  1 : a lens or system of lenses that forms an image of an object. 2  2a : something toward which effort is directed : an aim, goal, or end of actionb : a strategic position to be attained or a purpose to be achieved by a military operation.
Objectives are designed to image specimens either with air or a medium of higher refractive index between the front lens and the specimen. The field of view is often quite limited, and the front lens element of the objective is placed close to the specimen with which it must lie in optical contact.