Bleeding (AUGIB) is a common major medical emergency. In 2007, a national UK audit showed that overall mortality of patients admitted with acute gastrointestinal bleeding was

Up until the end of the last century most cities in The Netherlands operated publicly owned city transport systems. Central government was responsible for transport to and from the large cities and the surrounding countryside. Once transport companies or public transport corporations operated a transport system they enjoyed a protected position as a sole licensed

to the intrinsic structure collectively revealed by known labeled and unlabeled points. We present a simple algorithm to obtain such a smooth solution. Our method yields encouraging experimental results on a number of classification problems and demonstrates effective use of unlabeled data.

scales. In this paper we suggest a new definition of scale-space, and introduce a class of algorithms that realize it using a diffusion process. The diffusion coefficient is chosen to vary spatially in such a way as to encourage intraregion smoothing in preference to interregion smoothing. It is shown

in seven organizations, and results support its validity. A number of special features of the model are discussed (including its use as a basis for the diagnosis of jobs and the evaluation of job redesign projects), and the model is compared to other theories of job design. Work redesign is becoming

The TREC Video Retrieval Evaluation (TRECVid) is an international benchmarking activity to encourage research in video information retrieval by providing a large test collection, uniform scoring procedures, and a forum for organizations 1 interested in comparing their results. TRECVid completed its

against a view that links economic development to geographic factors. Instead, we argue that the reversal reflects changes in the institutions resulting from European colonialism. The European intervention appears to have created an "institutional reversal" among these societies, meaning

programming systems. We have implemented the algorithm in a system that allows patterns to have constraints on the words, part-of-speech tags, and semantic classes present in the filler and the surrounding text. We present encouraging experimental results on two domains.

even in the absence of stars. We present a simple model of network growth which captures these aspects of component structure. The model follows our ex-perimental results, characterizing users as either passive members of the network; inviters who encourage offline friends and acquain-tances to migrate

methods in certain image reconstruction problems. The empirical results reported here are in encouraging agreement.