Gui-Lin Zhang

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OBJECTIVE To investigate the methods for, and clinical outcome of, the operative treatment of thoracolumbar fractures through an approach via the paravertebral muscle (PVM). METHODS From June 2005 to August 2006, 62 patients, comprising 48 men and 14 women with an average age of 45.2 years (range, 21-58) with thoracolumbar fractures without neurological(More)
The lead contamination, lead species and source assignment were studied by a combination of several analytical techniques such as Proton-induced X-ray emission analysis (PIXE), Proton microprobe (micro-PIXE), Inductively coupled plasma-mass spectrometry (ICP-MS) and extended X-ray absorption fine structure (EXAFS) techniques. The results indicate that the(More)
In this paper, we present a characteristic set method for mixed differential and difference polynomial systems. We introduce the concepts of coherent, regular, proper irreducible, and strongly irreducible ascending chains and study their properties. We give an algorithm which can be used to decompose the zero set for a finitely generated differential and(More)
OBJECTIVE To measure the efficiency changes of basic public health service in Beijing rural areas and to provide some suggestions for the basic public health service project throughout China. METHODS In the study, stratified random samples from 32 township health centers (THCs) were measured by data envelopment analysis (DEA) model with the panel data(More)
PM10 and PM2.5 aerosol particle samples were collected at a subway station in Shanghai and their morphology, chemical composition and transition metal species were studied. The mass concentrations of PM10 and PM2.5 inside the subway station were significantly higher than those measured in aboveground ambient air. The PM levels inside subway were much higher(More)
OBJECTIVE To assess the effect of modified cervical expansive open-door laminoplasty preserving the posterior extensor musculature inserted into the C2 and C7 spinous process upon maintaining the cervical lordotic alignment and axial syndrome and to determine whether preserving the posterior extensor musculature inserted into C2 and C7 spinous process can(More)
OBJECTIVE To evaluate the clinical therapeutic outcomes for severe burst fracture of lumbar vertebrae via a posterior approach for one-stage spinal "three-column" reconstruction. METHODS An retrospective analysis of data was performed for 21 patients with severe burst fracture of lumbar vertebrae undergoing a posterior approach for one-stage spinal(More)
Haplocladium was cultivated in a special prepared nutrient medium containing different concentrations of Pb, Fe and Cr in laboratory. The sulfur content in moss was measured by synchrotron radiation X-ray fluorescence (SRXRF), and the percentage of various oxidation states of sulfur was analyzed by X-ray absorption near-edge structure (XANES) spectrum. The(More)
Carbonaceous particles are an important component of the atmospheric aerosol particles and important for global climate change, air quality and human health. The PM₁₀ single particles from two environmental monitor locations and seven pollution emission sources were analyzed using scanning proton microprobe (SPM) techniques. The concentration of carbon in(More)