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Retrospective cohort study. To evaluate efficacy and relevant problems of in situ reconstruction of extensor muscle insertion on the C2 spinous process combined with titanium miniplates internal fixation in expansive open-door cervical laminoplasty in order to improve surgical treatment effect. Expansive open-door cervical laminoplasty has been widely(More)
There are several essential features in key agreement protocols such as key escrow (essential when confidentiality, audit trail and legal interception are required) and perfect forward secrecy (i.e., the security of a session key established between two or more entities is guaranteed even when the private keys of the entities are compromised). Majority of(More)
OBJECTIVES Chinese county hospitals have been excessively enlarging their scale during the healthcare reform since 2009. The purpose of this paper is to examine the technical efficiency and productivity of county hospitals during the reform process, and to determine whether, and how, efficiency is affected by various factors. SETTING AND PARTICIPANTS 114(More)
This retrospective cohort study was conducted to evaluate the clinical outcomes of radical anterolateral debridement and autogenous ilium with rib or titanium cage interbody autografting with transpedicle fixation for the treatment of thoracolumbar tuberculosis. Spinal tuberculosis operation aims to remove the lesions and necrotic tissues, remove spinal(More)
OBJECTIVES Health knowledge and behaviors are the key elements that ensure high quality of health for the elderly. This study explored and determined the conditions and factors of health knowledge and behaviors that affect the elderly in rural China. METHODS A cross-sectional research approach and random stratified sampling method were used in 12 towns(More)
PURPOSE This study aimed to explore the competencies of public health workers (PHWs) of township hospitals in Chongqing Municipality (China), and determine the related impact factors of the competencies of PHWs; METHODS A cross-sectional research was conducted on 314 PHWs from 27 township hospitals in three districts in Chongqing Municipality (China),(More)
In 2001, Boneh and Franklin presented the first efficient and security-proved identity-based encryption scheme using pairing on ellip-tic curve. In 2003 Sakai and Kasahara proposed another IBE scheme with pairing, which has the potential to improve performance. Later, Chen and Cheng proved the security of a variant of Sakai and Kasahara's scheme. While,(More)
A systematic method of isolating and culturing human bone mesenchymal stem cells (hMSCs), and inducing them to differentiate into neuron-like cells in vitro was established. The hMSCs were isolated from bone marrow with the lymphocyte-separating medium, cultured and expanded in vitro, and induced after addition of compound neuro-revulsants. The(More)
OBJECTIVE Township hospitals (THs) are important components of the three-tier rural healthcare system of China. However, the efficiency and productivity of THs have been questioned since the healthcare reform was implemented in 2009. The objective of this study is to analyse the efficiency and productivity changes in THs before and after the reform process.(More)