Although discriminating between all efficient decision making units (DMUs) with identical efficiency is a very important subject in data envelopment analysis (DEA), it may not be an easy task, particularly when the decision maker wants to select one and only one efficient DMU among all. There are some papers that have proposed methods for finding an efficient DMU as the most efficient one but h...

Two endothelin (ET)-binding inhibitors, BE-18257A and BE-18257B, which antagonized 125I-ET-1 binding to a porcine aortic smooth muscle membrane, were isolated from the mycelium of a strain of Streptomyces misakiensis. These binding inhibitors were extracted with methanol from mycelium and purified by HPLC.

Testing the CAPM boils down to testing the mean/variance efficiency of the market portfolio. Numerous studies have examined the mean/variance efficiency of various market proxies by employing sample parameters, and have concluded that these proxies are inefficient. Shrinkage methods do not seem to help. These findings cast doubt about one of the cornerstones of modern finance. This study adopts...

This paper demonstrates that a representation which balances natural image encoding with metabolic energy efficiency shows many similarities to the neural organisation observed in the early visual system. A simple linear model was constructed that learned receptive fields by optimally balancing information coding with metabolic expense for an entire visual field in a 2-stage visual system. The ...

It is well-known that state abstraction can speed up planning exponentially, under ideal condi tions We add to the knowledge—showing that state abstraction may likewise slow down planning exponentially, and even result in generat ing an exponentially longer solution than necessary This phenomenon can occur for abstraction hierarchies which are generated automatically by the A L P I N E and H I ...

Students slow me down” and “Students take too much time” are common complaints of precepting physicians, and yet some physicians have endless energy for teaching and are able to maintain their clinical productivity. What do these doctors do differently? We held five professional seminars in 2007 and 2008 to talk with experienced physicians from health education programs across the United States...

Melanoma is a highly metastatic tumour and its incidence has ranked 5 and 6 among the most common cancer afflicting both men and women. Melanoma cells have a diminished antioxidant potential compared to normal melanocytes, which leads to an accumulation of ROS [1]. 1,4-benzopyrone heterocyclic compounds are widely distributed in plants and are reported to exhibit several biological roles, inclu...