Yonghong Zheng

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Understanding how the dynamics of vegetation growth respond to climate change at different temporal and spatial scales is critical to projecting future ecosystem dynamics and the adaptation of ecosystems to global change. In this study, we investigated vegetated growth dynamics (annual productivity, seasonality and the minimum amount of vegetated cover) in(More)
A tree-ring width chronology was developed using the tree-ring cores of Huangshan pine (Pinus taiwanensis Hayata) from the Dabie Mountains, central China. Descriptive statistics of the chronology indicated that Huangshan pine showed a common signal likely associated to climate. A correlation analysis was conducted between the chronology and climate(More)
Malignancy associated changes (MAC) can be defined as subtle morphological and physiologic changes that are found in ostensibly normal cells of patients harboring malignant disease. It has been postulated that MAC have a potential to become a useful tool in detection, diagnosis and prognosis of malignant diseases. An in vitro cell culture model system was(More)
We retrospectively studied the clinical results of posterior C1-C2 pedicle screw fixation and fusion for 86 patients diagnosed with atlantoaxial instability from January 2002 to January 2013. The study population included 48 men and 38 women, with an average age of 42.6 (range, 16-69years old). The causes of atlantoaxial instability could be divided into(More)
OBJECTIVE We put forward an assessment system of thoracolumbar osteoporotic fracture (ASTLOF) evaluating the severity of thoracolumbar osteoporotic fracture. This study was to investigate its efficacy in guiding clinical practice. METHODS Three hundred and eighty-one patients with thoracolumbar vertebral osteoporosis fracture admitted to the hospital from(More)
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