Through the passage of time (and the passing of an examination or two), resident physicians transform themselves into unrestricted practitioners. Whether you see this as a good thing or not depends on your perspective. To the residents themselves, this metamorphosis is no less beautiful than a chrysalis becoming a butterfly. Others, though, may deem it a variation of the kitten/cat problem arti...

This paper presents a novel power supply system based on the use of fuzzy inference logic to improve control renewable energy sources. The comprises solar and wind sources, an accumulator battery is used as additional source. procedure for parallel connection multiple sources provides stable optimal charging accumulative element. Renewable are connected in using two serial converters controlled...

In this paper I study the possibility of full surplus extraction on arbitrary type spaces, with three main results: (i) I characterize full surplus extraction, (ii) I characterize full surplus extraction assuming that the surplus-extracting allocation is implementable, and (iii) I show that virtually full surplus extraction implies full surplus extraction. The characterizing condition in (ii) a...

Surplus labor force and migration trends in China are examined, with emphasis on the impact of underemployment in rural areas. "Government policy encourages surplus labourers to transfer out of crop farming into agricultural sidelines or non-agricultural work. Peasants are urged to stay where they are, shifting jobs without shifting location; however, many rural areas are poorly endowed for pr...