智能泛在感知环境下的多维数据融合研究及应用

针对智能泛在感知环境下的数据融合定位不准、应用功能单一以及多网存储的数据难以自动关联等问题,苏州公安在建设"城市盾牌"的过程中,提出了多维数据融合治理的方法和路径,并付诸实践,通过一年多的实际运用,全方位支撑了"城市盾牌"的体系应用,取得了良好的实战成效。     

Hair as a specimen to document tetramethylene disulfotetramine exposure

Tetramethylene disulfotetramine (tetramine) is a rodenticide that has been banned for many years in China. Since 2005, inhabitants of a village in the Henan Province have been suffering from grand mal seizures. To investigate the possibility of tetramine as the cause, we developed a method to determine tetramine in human hair. Sample preparation involved external decontamination, frozen pulverization, and ultrasonication in 2 mL ethyl acetate in the presence of cocaine-d3 as an internal standard. The method exhibited good linearity; calibration curve was linear over a range of 0.1-20 ng/mg hair. The limit of detection for the assay was 0.05 ng/mg hair. Except for one subject (No. 4), all head and pubic hair samples were positive for tetramine. The concentrations of tetramine in pubic hair were significantly higher than those in the same subjects' head hair samples. Because of a long retention in body, segmental head hair analysis cannot provide an accurate exposure history of tetramine in the body.     

广东文化产业发展态势分析及对策建议

目前广东文化产业的发展在全国处于前列地位,但是广东的领先地位主要是以数量形成的,不仅与广东经济发展状况相比文化产业的发展速度仍然滞后,与国内先进省份相比差距也是明显的。为此,广东文化产业发展应在制度改革、科技创新、文化市场建设、文化品牌打造、完善和落实政策法规等方面采取有力的措施。