منابع مشابه
Ribosomal ambiguity made less ambiguous.
In PNAS, Fagan et al. (1) report a significant step forward in the quest to understand how the fidelity with which ribosomes translate the sequences of mRNAs into protein sequences is determined. The crystal structures discussed in this paper show that the B8 bridge between the two ribosomal subunits is critical in this regard. This work also brings into high relief a more general problem that ...
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Prologue: Canada’s provincial health insurance scheme is a source of endless fascination to policymakers advocating health system reform. Whether one is an advocate or a or a detractor of Canada’s plan us a model for the United States, an important issue that engages the antagonists is how much it costs to operate compared with America’s pluralistic and mostly private health insurance approach....
متن کاملEmergency ulcer surgery.
The rate of elective surgery for peptic ulcer disease has been declining steadily over the past 3 decades. During this same period, the rate of emergency ulcer surgery rose by 44%. This means that the gastrointestinal surgeon is likely to be called on to manage the emergent complications of peptic ulcer disease without substantial experience in elective peptic ulcer disease surgery. The goal of...
متن کاملA comparative direct cost analysis of pediatric urologic robot-assisted laparoscopic surgery versus open surgery: could robot-assisted surgery be less expensive?
BACKGROUND AND PURPOSE Cost in healthcare is an increasing and justifiable concern that impacts decisions about the introduction of new devices such as the da Vinci(®) surgical robot. Because equipment expenses represent only a portion of overall medical costs, we set out to make more specific cost comparisons between open and robot-assisted laparoscopic surgery. MATERIALS AND METHODS We perf...
متن کاملLess invasive heart surgery.
gical techniques in the last three years has been one of the most dramatic changes in the field of cardiology in some time. It is fair to say that although improvements and results are being published almost monthly in the cardiac surgery literature, these approaches are still in their infancy. Access to the heart through small incisions (8–10 cm) has received a lot of attention and many patien...
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ژورنال
عنوان ژورنال: Annals of Surgery
سال: 1983
ISSN: 0003-4932
DOI: 10.1097/00000658-198307000-00002