Objective:To determine the prevalence and compare the related factors of depressive symptoms among urban primary school students in Hefei and Shenzhen.Methods:Participants from Hefei and Shenzhen were asked to fill out the questionnaires including Children's Depression Inventory(CDI)and items of Social Support and demography.Results:The prevalence of depressive symptoms was significantly higher among the participants in Hefei(11.9%)than that in Shenzhen(8.2%)(?2 =10.37,P=0.001).The students with depressive symptoms had significant lower social support scores than those with no depressive symptoms in Hefei and Shenzheng cities(Parents support score was 3.6?1.6 vs 5.0?0.9,school support score was 2.1?0.9 vs 2.6?0.8,peer support score was 3.2?1.5 vs 4.4?1.0,total support score was 8.9?2.9 vs 12.0?1.8 in Hefei.Parents support score was 3.4?1.8 vs 4.9?0.7,school support score was 2.2?1.2 vs 2.9?0.8,peer support score was 3.4?1.5 vs 4.4?0.9,total support score was 9.0?2.7/12.3?1.6 in Shenzheng,all P

A 35-year-old male patient was admitted in October, 2018 to Burn and Plastic Surgery Department, Sanya Central Hospital (Hainan Third People’s Hospital) with diagnosis of complex pressure ulcer, hip arthritis, urethral fistula. The patient was treated with systemic support, debridement, negative pressure drainage, bilateral gluteus maximus myocutaneous flap and scrotal flap. After the two-week treatment with this method, the wounds were healed completely.

A 35-year-old male patient was admitted in October, 2018 to Burn and Plastic Surgery Department, Sanya Central Hospital (Hainan Third People’s Hospital) with diagnosis of complex pressure ulcer, hip arthritis, urethral fistula. The patient was treated with systemic support, debridement, negative pressure drainage, bilateral gluteus maximus myocutaneous flap and scrotal flap. After the two-week treatment with this method, the wounds were healed completely.

Objective: To investigate the ⁹⁰Sr concentration levels in the monitoring areas and the control area at Ningde Nuclear Power Plant (NPP). Methods: Food samples were collected from the monitoring areas in 30 km of Ningde NPP and the control area far away. The radioactive levels of ⁹⁰Sr in food samples were analyzed using the chromatography with 2-(2-ethylhexyl) phosphate fast extraction method. Results: In this survey, ⁹⁰Sr radioactive concentrations in 30 varieties of foods in 6 categories were analyzed. In the monitoring area, ⁹⁰Sr radioactivity concentration in the samples collected were in the range of 0.017-1.830 Bq/kg for cereals, beans and potatoes, 0.021-0.318 Bq/kg for vegetables, 0.007-7.690 Bq/kg for quatic products, and 0.009-0.184 Bq/kg for meats; whereas, in the control area, cereals, beans and potatoes in 0.017-0.700 Bq/kg, vegetables in 0.034-0.677 Bq/kg, aquatic products in 0.038-3.360 Bq/kg, and meats in 0.019-0.054 Bq/kg. Conclusions The ⁹⁰Sr radioactive concentrations in foods were far below the food standard limits in this survey. The contribution of evaluated to the public from the ⁹⁰Sr in foods was neglectable.

Objective To investigation the radioactivity level of ⁹⁰Sr in tea leaves within and outside 30 km range of Ningde nuclear power plant. Methods The tea leaves within and outside the 30 km range of Ningde Nuclear Power Plant were collected from 2013 to 2018. According to“Radiochemical analysis of strontium-90 in water and ash of biological samples” (HJ 815—2016), the separation and analysis of ⁹⁰Sr-⁹⁰Y were carried outusing the method of di (2-ethylhexyl) phosphate (HDEHP) chromatography. Results During the period of 2013-2018, the radioactivity concentrations of ⁹⁰Sr in the tea leaves within the range of 30 km around the Ningde nuclear power plant were 0.486～13.29 Bq/kg and that of ⁹⁰Sr in the tea leaves outside the range of 30 km around the nuclear power station were 1.021～17.19 Bq/kg. Conclusion During the six years of operation in Ningde Nuclear Power Plant, there was no increase in the radioactivity level of ⁹⁰Sr in the tea leaves around the nuclear power plant.