delayed evaluation and management of penetrating cardiac injuries especially mortar fragments were performed in 30 war victims in the shahid rajai heart hospital, tehran. all were men with a mean age of 20.7 years. pleuritic chest pain was the most common symptom (53.3%), while physical examination was negative in the majority of cases (66.8%). 50 percent of the cases had pericardial effusion o...

Sparse Dynamic Programming has emerged as an essential tool for the design of efficient algorithms for optimization problems coming from such diverse areas as computer science, computational biology, and speech recognition. We provide a new sparse dynamic programming technique that extends the Hunt–Szymanski paradigm for the computation of the longest common subsequence (LCS) and apply it to so...

Disambiguation is a difficult task in Chinese Automatic Word Segmentation, and the ambiguous fragments discovery is the foundation of the disambiguation. This article proposes a method named Bidirectional Maximum Matching and Retroversion Multiword to discover the ambiguous fragments, which can deal with the overlapping ambiguity fragments of the long precision. Some experiments show that this ...