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BACKGROUND This study was conducted to ascertain the feasibility of using rapid oral fluid testing as an alternative HIV testing method in China. METHOD This is a mixed-method study among men who have sex with men (MSM), female sex workers (FSW) and VCT clients, conducted in 4 cities in Shandong Province. A pre-tested questionnaire was administered to(More)
BACKGROUND The availability of oral fluid HIV rapid testing provides an approach that may have the potential to expand HIV testing in China, especially among most-a-risk populations. There are few investigations about the acceptability of oral fluid HIV testing among most-at-risk populations in China. METHOD A cross-sectional study with men who have sex(More)
Cell-microstructure surface interactions play a significant role in tissue engineering to guide cell spreading and migration. However, the mechanisms underlying cell-topography interactions are complex and remain elusive. To address this topic, microsphere array patterns were prepared on silk fibroin films through polystyrene microsphere self-assembly,(More)
Polyethylenimine (PEI) has attracted much attention as a DNA condenser, but its toxicity and non-specific targeting limit its potential. To overcome these limitations, Antheraea pernyi silk fibroin (ASF), a natural protein rich in arginyl-glycyl-aspartic acid (RGD) peptides that contains negative surface charges in a neutral aqueous solution, was used to(More)
BACKGROUND Men who have sex with men (MSM) have become a high-risk group of HIV infection in China. To date, little is known regarding the behavioral, social and psychological characteristics in Chinese MSM, which makes the implementation of preventive and therapeutic strategies for this high-risk subpopulation of people extremely difficult. METHODS A(More)
Degradation behavior is very important in the field of silk-based biomaterials. Mulberry and nonmulberry silk fibroins are structurally and functionally distinguishable; however, no studies have examined the differences in the degradation behaviors of silk materials from various silkworm species. In this study, Ca(NO3)2 was used as a uniform solvent to(More)
A growing body of evidence indicates that aberrant activation of epithelial-to-mesenchymal transition (EMT) plays a key role in tumor cell invasion and metastasis. Zinc finger E‐box-binding homeobox factor 1 (ZEB1), as a crucial mediator of EMT, contributes to the malignant progression of various epithelial tumors. To determine whether ZEB1 is involved in(More)
This paper presents a novel area-based stereo matching algorithm based on improved census transform under changing illumination. For the traditional census-based stereo matching, the result is not robust under variant illumination, because the intensity value of center pixel in the mask is affected by the noise to cause distortion. In order to solve this(More)
In this paper, we present a novel robust census transform stereo matching algorithm based on the classic census transform. While many stereo algorithms have been proposed in recent years, their similarity measures greatly depends on the intensity statistic of the stereo image pairs and are sensitive to the noise. Although the classic census non-parametric(More)
The physical, chemical, and bioactive cues provided by biomaterials are critical for spinal cord regeneration following injury. In this study, we investigated the bioactivity of a silk-based scaffold for nerve tissue remodeling that featured morphological guidance in the form of ridges as well as bioactive molecules. Multichannel/laminin (LN) silk scaffolds(More)