Abstract Introduction Where urethral catheterisation fails, cystoscopy may enable urologists’ adequate views to identify the channel. Traditionally this has required a slot on emergency operating list. Our district general hospital introduced single use flexible cystoscopes allow for bedside and here we present our experience. Method Data was collected prospectively each time disposable scope u...

Dolly was the first cloned mammal and must be the most famous sheep in the world. Two things made her famous: first that she is an artificially induced clone, genetically identical to a previously existing sheep, for Dolly can be thought of as a vertical twin with identical genes, in this case to the parent. Second is the way in which it was done. The scientists took the nucleus from a cell fro...

AT&T's long distance prices are regulated in order to avoid supracompetitive pricing. This rationale presumes that AT&T possesses sufficient market power to raise prices substantially above marginal cost. This paper estimates firm specific demand elasticities for AT&T and the other large long distance companies using monthly data for 1988 through 1991 from five states. Lerner indices are calcul...

Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA, USA (C F Estívariz MD, M A Pallansch PhD); National Polio Surveillance Project, RK Khanna Stadium, New Delhi, India (H Jafari MD, H Verma MBBS, S Bahl MD); WHO, Geneva, Switzerland (R W Sutter MD, A Burton BS, R B Aylward MD); Department of Clinical Virology, Christian Medical College, Tamil Nadu, India (Prof...

We lay out a computational model for syntactic category acquisition which combines psychologically plausible concepts from minimally supervised part-of-speech tagging applications with simple distributional statistics. The model assumes a small set of seed words (Haghighi & Klein 2006), an approach with motivation in Pinker (1984)'s semantic bootstrapping hypothesis, and iteratively constructs ...

We lay out a model for minimally supervised syntactic category acquisition which combines psychologically plausible concepts from standard NLP part-of-speech tagging applications with simple cognitively motivated distributional statistics. The model assumes a small set of seed words (Haghighi and Klein, 2006), an approach with motivation in (Pinker, 1984)’s semantic bootstrapping hypothesis, an...