Huiqin Liu

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INTRODUCTION Vertebral artery hypoplasia (VAH), which has been found in about 10 % of normal individuals, does not produce symptoms but may be associated with an increased risk of cerebral posterior circulation ischemic (PCI) stroke. The aims of this study were to determine the prevalence of VAH in Chinese patients with cerebral infarction and investigate(More)
Four fungal strains—Trichoderma viride, Aspergillus niger, Trichoderma koningii, and Trichoderma reesei—were selected for cellulase production using furfural residues and microcrystalline cellulose (MCC) as the substrates. The filter paper activity (FPA) of the supernatant from each fungus was measured, and the performance of the enzymes from different(More)
Most pathogens initiate their infections at the human mucosal surface. Therefore, mucosal vaccination, especially through oral or intranasal administration routes, is highly desired for infectious diseases. Meanwhile, protein-based antigens provide a safer alternative to the whole pathogen or DNA based ones in vaccine development. However, the unique(More)
Iron is essential for the growth and survival of many organisms. Intracellular iron homeostasis must be maintained for cell survival and protection against iron toxicity. The ferric uptake regulator protein (Fur) regulates the high-affinity ferric uptake system in many bacteria. To investigate the function of the fur gene in Xanthomonas vesicatoria (Xv), we(More)
The application of poly(lactic acid) for sustained protein delivery is restricted by the harsh pH inside carriers. In this study, we synthesized a pH-responsive comb-shaped block copolymer, polyethylene glycol monomethyl ether-ε-polylysine-g-poly (lactic acid) (PEP)to deliver protein (bovine serum albumin (BSA)). The PEP nanoparticles could automatically(More)
Polygalacturonase-inhibiting proteins (PGIPs) are leucine-rich repeat proteins involved in plant defence. The aim of the current study was to isolate the genomic fragment of PGIP genes in alfalfa (Medicago sativa) and to analyse their sequence variation. Four PGIP genes, namely MsPGIP1, MsPGIP2, MsPGIP3 and MsPGIP4, were discovered using the homology(More)
Common leaf spot (CLS), which is caused by Pseudopeziza medicaginis (Lib.) Sacc., is one of the most serious fungal diseases occurring in autotetraploid alfalfa (Medicago sativa) worldwide. Polygalacturonase-inhibiting proteins (PGIPs) are important candidate genes for disease resistance studies in plants. The association between an alfalfa PGIP gene,(More)
  • Hong Chen, Shubin Wang, Huiqin Liu, Bingxin Yan, Yuanyuan Bao
  • 2014
In order to improve the sensing performance for cognitive radio, this paper proposes a spectrum sensing method based on Gabor transform. Firstly, a continuous-time signal is transformed into a discrete-time signal, then, the discrete-time signal is converted into Gabor transform by over-sampling. Secondly, the Gabor transform coefficient of the(More)