OBJECTIVE To evaluate whether external suction is more advantageous than water seal in patients undergoing selective pulmonary resection (SPR) for lung neoplasm. SUMMARY OF BACKGROUND DATA Whether external suction should be routinely applied in postoperative chest drainage is still unclear, particularly for lung neoplasm patients. To most surgeons, the decision is based on their clinical expe...

serosal permeability to sugars (Holman & Naftalin, 1975). With a preparation of the mucosa of rabbit ileum and the sugar galactose, these authors were able to show that, although theophylline and dibutyryl cyclic AMP had no effect on the entry or exit permeabilities to galactose at the mucosal pole of the epithelium, both the serosal entry and the exit permeability were decreased to 30% of cont...

This paper explains contemporaneous exit and entry in a new industry with a diffusion process across submarkets. It allows a re-interpretation of the shakeout process in some industries in a novel way. The industry is a collection of initially inactive independent submarkets; the timing of their activation is determined by an exogenous aggregate diffusion process. New submarket opening attracts...

conventional hydrostatic barium reduction or pneumatic reduction of intussusception is associated with considerable ionizing radiation. the aim of this study was to evaluate ultrasound-guided hydrostatic reduction for childhood intussusception using water enema. a total of 76 children who diagnosed as having intussusception were referred to doctor sheikh children hospital in mashhad (northeast ...

The Dixit entry/exit real option model was applied to the entry/exit decisions of New York dairy farmers. For the cost structure of a 500-cow farm the entry milk price is $17.52 per hundredweight (cwt.) and the exit milk price is $10.84. For the 50-cow farm cost structure the entry price is higher at $23.71 per cwt., and the exit price is also higher at $13.48. If infinite numbers of representa...