International Geophysical Year Symbol: H. Odishaw ................... 722 Library Searches with Punched-Card Machines: W. F. Brown, Jr., and G. Oneal, Jr ................................. 722 Dangerous Dagger: C. F. Richter. .................................... 723 Subject Indexing in a Restricted Field: I. D. Welt ............. ......... 723 Age and Productivity among Scientists: W. Dennis ......

The idea that quotidian, middle-level concepts typically have internal structure-definitional, statistical, or whatever—plays a central role in practically every current approach to cognition. Correspondingly, the idea that words that express quotidian, middle-level concepts have complex representations "at the semantic level" is recurrent in linguistics; it is the defining thesis of what is of...

Abstract Canonical quantization has conventionally been adopted as a necessary procedure for the description of quantum radiation field by analogy between quantum-mechanical oscillators and oscillators. In this paper we provide physical basis formal interacting with matter in presence vacuum field, taken here solution classical Maxwell equations. Just canonical particle operators $$\hat{x}$$ <m...

Clinical case The patient presented with 7 days of spiking fever not responding to oral antibiotics, arthralgias and a maculous rash. Laboratory results showed leukocytosis, thrombocytosis, CrP of 240 mg/l, ESR 100 mm. The symptoms persisted under intravenous antibiotic treatment. Focus work-up gave no evidence of an infectious origin, malignancy, IBD, vasculitis, connective tissue disease or p...

Abstract Let $\mathcal {A} \subset{\mathcal {B}}(\mathcal {H})$ A ⊂ B ( H ) be a row contraction and $\Phi _{\mathcal {A}}$ Φ determined by {A}$ completely positive map on ${\mathcal . ...