It is known that there are exactly five positive universal products. We classify non-positive universal products and find a two-parameter deformation of the Boolean product, which we call (r, s)-products. Furthermore, we introduce a GNS-construction for non-positive linear functionals on algebras and study the GNS-modules of (r, s)-product functionals.
A generalization of the GNS-representation is investigated that represents partial ∗-algebras as systems of operators acting on a partial inner product space (PIP -space). It is based on possibly indefinite B-weights which are closely related to the positive B-weights introduced by J.-P. Antoine, Y. Soulet and C. Trapani. Some additional assumptions had to be made in order to guarantee the GNS-...
Andrea C TriccoCharlene SoobiahErik BlondalAreti A VeronikiPaul A KhanAfshin VafaeiJohn IvoryLisa StriflerHuda AshoorHeather MacDonaldEmily ReynenReid RobsonJoanne HoCarmen NgJesmin AntonyKelly MrklasBrian HuttonBrenda R HemmelgarnDavid MoherSharon E Straus
BACKGROUND
Serotonin (5-HT3) receptor antagonists are commonly used to decrease nausea and vomiting for surgery patients, but these agents may be harmful. We conducted a systematic review on the comparative safety of 5-HT3 receptor antagonists.
METHODS
Searches were done in MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials to identify studies comparing 5-HT3 receptor ant...
BACKGROUND AND OBJECTIVES
It is calculated that the incidence of postoperative nausea and vomiting (PONV) is approximately 30%. The prophylaxis of PONV has been the subject of several studies, both to decrease this problem and to compare the cost-benefit ration of the treatment used. The objective of this study was to compare the efficacy of 5 antiemetic drugs with a control group in emergency ...
Purpose of Study: In the present study, an attempt was made to design and evaluate buccoadhesive bilayer tablets of granisetron hydrochloride (an anti-emetic drug), in order to overcome bioavailability problems, to reduce dose dependent side effects and frequency of administration. Method: Bilayer buccal tablets containing the drug were prepared by direct compression method using combination of...