Xiangmin Zheng

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BACKGROUND The Harmonic Scalpel (HS) is widely used in thyroidectomy. Determining the safety margin of using the HS near the recurrent laryngeal nerve (RLN) is helpful in preventing the injury to this nerve during thyroidectomy. METHODS The parameters of evoked electromyography (EEMG) of vocal muscles before and after using the HS at a power level of 3(More)
BACKGROUND Minimally invasive transhiatal esophagectomy for esophageal cancer includes mediastinoscopic and laparoscopic transhiatal esophagectomy. It is inadequate in both two techniques. It is impossible to dissect the lower esophagus with single mediastinoscopy or the upper and middle esophagus with single laparoscopy. We use mediastinoscopy combined(More)
Using bio-disturbed sulphide to trace the mobility and transformation of Cu, Pb, Ni and Zn in the sediments of the Spartina alterniflora-dominated salt marsh in the Yangtze River Estuary, measurements were made of the seasonal variations of acid-volatile sulphide (AVS) and of the simultaneously extracted metals (SEM) in the rhizosphere sediments. Microcosm(More)
The mobility and transformation of arsenic (As) in salt marsh sediments were investigated in Dongtan wetland of the Yangtze River estuary, China. As in surface water, pore water and the rhizosphere sediments were quantified. The microcosm incubation experiments were conducted during the flooding of the sediments to examine As dynamics that occurred during(More)
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