56 research outputs found

    Probabilistic flood mapping of storm surges due to tropical cyclones with sea-level rise along Mekong delta

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    Mekong delta is severe-vulnerable for fluvial flood. Though frequency of coastal flood is low frequency,\ud we should know the risk. This paper shows the extreme heights of storm surges calculated by extreme theory and\ud hindcast of storm surge heights past 60 years. Based on the extreme heights, probabilistic flood area was calculated by\ud physical process model of shallow water flow. And more, impact of rising sea-level is also considered with storm\ud surges. The results were quantified as area of flood and affected population. Reducing of capacity of dykes due to rising\ud in sea-level also was shown at the end of this paper

    Tumor Marker Levels Before and After Curative Treatment of Hepatocellular Carcinoma as Predictors of Patient Survival.

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    BACKGROUND: α-fetoprotein (AFP) is used as a marker for hepatocellular carcinoma (HCC), which is influenced by hepatitis. Protein-induced vitamin K absence or antagonist II (PIVKA-II) is a sensitive diagnostic marker. Changes in these markers after treatment may reflect curability and predict outcome. METHODS: We conducted an analysis of prognosis in 470 HCC patients who received curative treatments, and examined the relationship between changes in AFP and PIVKA-II levels after 1 month of treatment in 156 patients. Subjects were divided into three groups according to changes in both levels: (1) normal (L) group before treatment, (2) normalization (N) or (3) decreased but still above normal level or unchanged (ANU) group after treatment. RESULTS: High AFP and PIVKA-II levels were significantly associated with poor tumor-free and overall survival. The presence of large size and advanced stage were significantly associated with prevalence of DU group. Overall survival in the AFP-L group was significantly better than that of other groups and overall survival in PIVKA-II-L and N groups were significantly better than that of the PIVKA-II-ANU groups. The combination of changes in the AFP- ANU and PIVKA-II- ANU groups showed the worst tumor-free and overall survivals. Multivariate analysis identified high pre-treatment levels of AFP and PIVKA-II and combination of AFP- ANU and PIVKA-II- ANU as significant determinants of poor tumor-free and overall survival, particularly in patients who underwent hepatectomy. CONCLUSION: We conclude that high levels of AFP or PIVKA-II after treatment for HCC did not sufficiently reflect curative efficacy of treatment and reflected a poor predictor of prognosis in HCC patients
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