‏‎for the first time nakayama introduced qf-ring. in 1967 carl. faith and elbert a. walker showed that r is qf-ring if and only if each injective right r-module is projective if and only if each injective left r-modules is projective. in 1987 s.k.jain and s.r.lopez-permouth proved that every ring homomorphic images of r has the property that each cyclic s-module is essentialy embeddable in dire...

Background: This study compared the effect of Voluven and Ringer solution in cardiopulmonary bypass on the bleeding after the surgery and renal function in coronary artery bypass graft surgeries. Methods: Two types of prime solution including ringer - as Crystalloid- and Voluven were used in two groups and compared in terms of bleeding and renal function during the first 24 hours after the surg...

what miller wants is a theatre of heightened consciousness. he speaks of two passions in a man, the passion to "feel" and the passion "know". he belives that we can have more of the latter. he says: drama is akin to the other inventions of man in that it ought to help us know more and not merely to spend our feelings. the writing of the crucible shows us that he is trying to give more heightene...

  A field study was carried out among 265 post surgical patients in 67 surgical wards belonging to teaching hospitals located in Tehran. The purpose of this study was to determine the amount of Dipyron administration in the first 48 hours of postoperative period and the accuracy of its recording in the medication records by the nursing staff, meanwhile the physicians' post operative analgesic m...