Xiaokang Li

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Injury to peripheral nerves always results in progressive skeletal muscle atrophy and poor functional recovery. Previous studies have demonstrated that transplanting neural stem cells (NSCs) into peripheral nerve can differentiate into neurons and delay muscle atrophy. However, the mechanism was not very clear. In this study, we transplanted the fetal NSCs(More)
Conventional transplantable biomedical devices generally request sophisticated surgery which however often causes big trauma and serious pain to the patients. Here, we show an alternative way of directly making three-dimensional (3-D) medical electronics inside the biological body through sequential injections of biocompatible packaging material and liquid(More)
Treatment of osseous defects remains a formidable clinical challenge. Porous titanium alloys (pTi) have been emerging as ideal endosseous implants due to the excellent biocompatibility and structural properties, whereas inadequate osseointegration poses risks for unreliable long-term implant stability. Substantial evidence indicates that pulsed(More)
The onset of cardiac fibrosis post myocardial infarction greatly impairs the function of heart. Recent advances of cell transplantation showed great benefits to restore myocardial function, among which the mesenchymal stem cells (MSCs) has gained much attention. However, the underlying cellular mechanisms of MSC therapy are still not fully understood.(More)
Dominant-negative inhibition of glucose-dependent insulinotropic polypeptide impairs function of b cells in transgenic pigs Dear Editor: Glucose-dependent insulinotropic polypeptide (GIP) and proglucagon product glucagon-like peptide-1 (GLP-1) and their corresponding receptors promote secretion of glucose-dependent insulin [1] and may be responsible for up(More)
K-Means, a simple but effective clustering algorithm, is widely used in data mining, machine learning and computer vision community. K-Means algorithm consists of initialization of cluster centers and iteration. The initial cluster centers have a great impact on cluster result and algorithm efficiency. More appropriate initial centers of k-Means can get(More)
Purpose: With the development of information technology, online virtual learning community is on its way to become an important approach for people to construction and sharing of knowledge. Researches on virtual learning community are not only important to the establishment and management of virtual learning community itself, but are helpful for people's(More)
This paper proposes a new method for asymmetric filtering of stereoscopic video. In traditional asymmetric stereoscopic video coding, the quality of one of the views is reduced while the other view is of original quality. However, this approach is not fair for people with one dominant eye. We propose to address this problem by reducing the quality of(More)
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