Rifaximin is a nonabsorbed (< 0.4%), broad-spectrum antibiotic specific for enteric pathogens of the gastrointestinal tract (ie, gram-positive, gram-negative, aerobic, anaerobic). Rifampin is a structural analogue.
Hawthorne begins The Scarlet Letter with a long introductory essay that generally functions as a preface but , more specifically , accomplishes four significant goals : outlines autobiographical information about the author , describes the conflict between the artistic impulse and the commercial environment , defines the romance novel ( which ...
The purpose of an essay is to encourage students to develop ideas and concepts in their writing with the direction of little more than their own thoughts (it may be helpful to view the essay as the converse of a research paper). Therefore, essays are (by nature) concise and require clarity in purpose and direction.