BACKGROUND/AIMS The diagnosis of inflammatory bowel disease (IBD) is often delayed due to misdiagnosing patients with irritable bowel syndrome (IBS), mostly because of the under-recognition of high-risk features. The red flag score (RFS) has been recently developed to identify patients with higher risk of IBD rather than IBS. The aim of this study is to estimate the prevalence of high-risk feat...

OBJECTIVE Fine needle aspiration (FNA) is a reliable method in the initial assessment of thyroid nodules. The purpose of this study was to evaluate the causes for discordance between the interpretation on FNA and the pathologic findings in the resected thyroid. METHODS A computer search of all thyroidectomy specimens with previous FNA from January 1998 to December 2001 was obtained from the f...

The construction of robust computational models integrating reasoning and learning is a key research challenge for artificial intelligence. Recently, this challenge was also put forward as a fundamental problem in computer science [255]. Such a challenge intersects with another long-standing entry in the research agenda of artificial intelligence: the integration of its symbolic and connectioni...

Meyer (1971) showed that any point process whose compensator has continuous paths that increase to ∞ can be time-scaled to a standard Poisson process. In this article we consider the converse to this result. We construct a time change with continuous paths increasing to ∞ that transforms a standard Poisson process into a general point process with totally inaccessible arrivals and compensator g...

In cell cultures of carrot (Daucus carota L.), somatic embryogenesis can be induced by transferring cells from a medium containing 2,4-dichlorophenoxyacetic acid (2,4-D) to one devoid of 2,4-D. Previous analysis of transgenic carrot cells containing the 5' non-coding sequence of the Ri plasmid rolC and a structural gene for bacterial beta-glucuronidase (uidA) has shown that the chimeric gene is...

PURPOSE To evaluate the outcomes of 255 patients with nasopharyngeal carcinoma (NPC) treated with four facio-cervical fields conformal radiotherapy (4F-CRT). RESULTS In one patient's 3 different RT treatment modalities, the 4F-CRT techniques resulted in sharper of the dose-volume histograms (DVHs) for primary gross tumor volume (PGTVnx) and planning target volume (PTVnx), similar to the inten...