375 With the wide availability of non-invasive imaging techniques, the occurrence of a patient with a large disc herniation who ultimately has complete disappearance of the herniation on imaging without surgery is not rare.1-4 It is unclear how common this is, as most patients who recover from sciatica do not get repeat imaging. Alternatively, how commonly cauda equina syndrome subsequently occ...

This brief essay reviews an approach to defining and then detecting the emergence of complexity in nonlinear processes. It is, in fact, a synopsis of Reference [1] that leaves out the technical details in an attempt to clarify the motivations behind the approach. The central puzzle addressed is how we as scientists — or, for that matter, how adaptive agents evolving in populations — ever “disco...

At the time of the first edition of Pediatrics, the Journal of Pediatrics was the major pediatric publication in the United States. The American Academy of Pediatrics (AAP) was instrumental in the establishment of the Journal of Pediatrics in 1931 and had designated it as its “official organ.” The Journal of Pediatrics, owned by C. V. Mosby Company, was generating profit, the magnitude of which...