Xiaoguo Zhang

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—Expansion of query keywords based on semantic relations is an effective approach to improve the performance of information retrieval. Traditional methods of query expansion did not adequately make use of semantic relations between query keywords. In this paper, a novel approach for query expansion is presented. The main idea of the approach is to construct(More)
BACKGROUND Nucleoside analogues are recommended as antiviral treatments for patients with hepatitis B virus (HBV)-associated liver failure. Clinical data comparing entecavir (ETV) and lamivudine (LAM) are inconsistent in this setting. OBJECTIVES To compare the efficacy and safety of ETV and LAM in patients with chronic hepatitis B (CHB)-associated liver(More)
MicroRNAs are small and non-coding RNA molecules with the master role in regulation of gene expression at post-transcriptional/translational levels. Many methods have been developed for microRNA loss-of-function study, such as antisense inhibitors and sponges; however, the robustness, specificity, and stability of these traditional strategies are not highly(More)
The effects of night temperature on plant morphology and nitrogen accumulation were examined in rice (Oryza sativa L.) during vegetative growth. The results showed that the shoot biomass of the plants was greater at 27°C (high nighttime temperature, HNT) than at 22°C (CK). However, the increase in both shoot and root biomasses was not significant under 10(More)