To refl ect its contemporary focus, Maternity Center Association recently changed its name to Childbirth Connection. Childbirth Connection continues the national not-for-profi t organization ’ s 88-year role as a voice for the needs and interests of childbearing families and focus on improving the quality of maternity care, by promoting evidencebased maternity care. This commentary summarizes r...

The prevention and clinical management of RDS are discussed in detail, of particular interest being the details of the use of Swan-Ganz catheters, anticoagulants in the management of intravascular coagulation, post end-expiratory pressure and intravenous nutrition. Not everyone will agree with the opinions expressed but their rational presentation supported by an excellent bibliography are cert...

P systems with symport/antiport rules of a minimal size (only one object passes in any direction in a communication step) were recently proven to be computationally universal. The proof from [2] uses systems with nine membranes. In this paper we improve this results, by showing that six membranes suffice. The optimality of this result remains open (we believe that the number of membranes can be...