Where do radiologists rank among medical specialties with regard to happiness? Toward the top, ahead of family physicians, general internists, and other primary care physicians who spend a high proportion of their time dealing with chronic diseases? Toward the middle of the pack, along with general surgeons and surgical specialists, who tend to work long hours? Or toward the bottom of the pecki...

Capital structure is the mixture of debt and equity financing. Its choice and determinants related to many different factors. This thesis firstly present several traditional theories discussed on capital structure, such as trade-off theory, agency cost theory and theory of pecking-order. Then the paper concluded seven determined factors from practical aspects and discussed on the correlations a...

Six experiments were used to examine the effects of explicit response, stimulus, and temporal dependencies on responding in an interfood interval. The first two experiments demonstrated that 10-segment 60-s interfood clocks controlled similar distributions of key pecking in pigeons regardless of whether response-reinforcement contiguity was required, allowed, or precluded. The third and fourth ...

The time budgets, behavior rhythms, foraging habitats and food preferences of oriental white stork Ciconia boyciana were studied from December 2013 to March 2014 with instantaneous scan sampling and focus animal sampling methods at Poyang Lake, Jiangxi province, China. The results showed that the main behavior of oriental white stork were resting (40.07±3.21%) and foraging (35.44±2.42%), follow...