[Characteristics of Stable Mercury Isotopic Compositions in the Food Web of the Caohai Lake].

Caohai Plateau Wetland is a National Nature Reserve. The characteristics of stable mercury isotopic compositions in the food web were studied by comprehensively analyzing the concentrations of Hg species (MeHg, THg), C, and N, and the isotopic compositions of Hg in different aquatic organisms. The main results are as follows:all samples of the food web show mass-dependent fractionation (MDF) and mass-independent fractionation (MIF) and a negative Hg(-0.

[Mercury Distribution of Benthonic Animals and Response to Mercury in Sediments in Caohai Wetland, Guizhou Province].

Caohai wetland is a National Nature Reserve. Benthic animals were collected from the deep-water area in the middle of Caohai Lake and the shallow-water area in the surrounding marshes, and mercury and methyl mercury distributions in the benthic animals were analyzed and discussed. The risk of mercury pollution was evaluated.

[Prospects of the Application of Photoacoustic Technique in Microcirculation Imaging Research on the Acupoints Sensitization].

Research on the imaging of acupoint sensitization is inadequate, especially at the microcirculation level. Photoacoustic imaging is one of the main techniques used in microcirculation imaging, and has the characteristics of high contrast, high detection depth and high sensitivity for tissue function. In the present paper the authors briefly introduce photoacoustic imaging and review research advances in photoacoustic imaging of microcirculation from the aspects of structure and function.