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| 1 | Soil selenium concentration and Kashin-Beck disease prevalence in Tibet,China显示文摘In order to investigate the correlation between the prevalence of Kashin-Back disease(KBD)and Se concentrations,natural soil samples and cultivated soil samples were collected from southeastern Tibet,China;and the soil Se concentrations were measured by atomic fluorescent spectrophotometer.It was found that the mean Se concentrations of natural soil samples in KBD areas,from the first layer to the third layer,were 0.17 mg/kg,0.11 mg/kg,and 0.10 mg/kg,respectively,and in nondisease areas were 0.21 mg/kg,0.24 mg/kg,and 0.13mg/kg,respectively.The mean Se concentrations of cultivated soil samples were 0.10 mg/kg in KBD areas and 0.23 mg/kg in non-disease areas,respectively.Soil Se concentrations in KBD areas were lower than that in non-disease areas,and the mean concentrations of soil Se in Tibet were lower than the average of China(0.29 mg/kg).Therefore,there is a close relationship between soil Se concentrations and KBD in Tibet.More studies should be concentrated on the impacts of Se deficiency in soils and its relationship with Se concentrations in food-grain and the human body in Tibet areas. | Shunjiang LI Wei LI Xia HU Linsheng YANG Ruodeng XIRAO | 2009 | Frontiers of Environmental Science & Engineering2009，3，1： | 4 |
| 2 | Effect of Different Cultivation Practices on Soil Physical and Chemical Properties for Greenhouse Vegetables under Long-Term Continuous Cropping显示文摘Five kinds of greenhouse vegetables( eggplant,loofah,tomato,cucumber and pepper) were selected in summer uprooting stage from greenhouse in Shouguang area,Shandong Province. Total nitrogen,ammonium nitrogen,nitrate nitrogen,available phosphorus,available potassium,organic matter content and p H,EC value of three soil layers were measured,respectively. The results showed that the total nitrogen,ammonium nitrogen,nitrate nitrogen,available phosphorus and available potassium in the soil were mainly accumulated in the upper soil,which made the soil acidification trend,because different farmers adopted different cultivation practices for different greenhouse vegetables in Shouguang region,but there was no significant effect on soil EC value. The input of ammonium nitrogen and nitrate nitrogen and other related fertilizers to greenhouse cucumber was higher than that of other greenhouse vegetables,but the amount of available potassium fertilizer and organic matter input to greenhouse tomato under different cultivation practices was lower than other greenhouse vegetables. In Shouguang area,the input of organic matter into greenhouse vegetables should be increased by increasing the proportion of manure input to increase the content of soil organic carbon,so as to achieve the balance of carbon and nitrogen ratio,and to provide a scientific basis for the establishment of an evaluation system for the environmental benefits brought about by chemical fertilizer reduction in greenhouse vegetables in Shouguang area. | Lijuan GAO Guoyuan ZOU Lianfeng DU Shunjiang LI Jing LIU Hongkai DUAN | 2018 | Asian Agricultural Research2018，10，9： | 2 |
| 3 | Synthesis,morphology and thermal decomposition of Schiff base derived from m-hydroxybenzaldehyde and p-aminobenzoic acid显示文摘 | Li Shunjiang Cai Yanhua | 2011 | Asian Journal of Chemistry2011，23，6： | 1 |
| 4 | Relationship between selenium concentration in child hair and the distribution of Kashin-Beck Disease in Tibet, China显示文摘The focus of this study is to determine the relationship between selenium(Se)concentrations in child hair and the distribution of Kashin-Beck disease(KBD)in Tibet.The hair of children in typical KBD-affected areas and non-disease areas was collected,and its Se concentrations were measured by atomic fluorescent spectrometry.The Se concentrations in child hair were(0.13±0.04)and(0.18±0.07)μg/g respectively in KBD areas and non-disease areas respectively,which are significantly different.In areas supplemented with Se in Tibet,the Se concentration of hair in KBD-affected areas was higher than that in non-diseased areas,being(0.28±0.03)and(0.18±0.04)μg/g respectively.There is a close relationship between the Se concentrations in hair and KBD distribution.Se supplement increase the Se concentrations in the human body.Appropriate Se supplementation is important to prevent KBD in Tibet. | LI Shunjiang YANG Linsheng WANG Wuyi LI Yonghua LI Hairong XIRAO Ruodeng | 2007 | Frontiers of Medicine2007，1，2： | 1 |
| 5 | Groundwater Nitrate Contamination and Driving Forces from Intensive Cropland in the North China Plain显示文摘High nitrate in groundwater is a serious problem especially in highly active agricultural areas.In this paper,the concentration and spatial distribution of groundwater nitrate in cropland area in the North China Plain were assessed by statistical and geostatistical techniques.Nitrate concentration in groundwater reached a maximum of 526.58 mg/L,and 47.2%,21.33%and 11.13%of samples had levels in excess of nitrate safety threshold concentration(50 mg/L)in shallow,middle-deep and deep groundwater,respectively.And NO-3 content significantly decreased with groundwater depth.Groundwater nitrate concentrations under vegetable area are significantly higher than ones under grain and orchard.And there are great differences in spatial distribution of nitrate in the North China Plain and pollution hotspot areas are mainly in Shandong Province.Based on both multiple regressions combined with principal component analysis(PCA),significant variables for nitrate variation in three types of ground water were found:population per unit area,percentage of vegetable area,percentage of grain crop area,livestock per unit area,annual precipitation and annual mean temperature for shallow groundwater;population per unit area and percentage of vegetable area for middle-deep groundwater;percentage of vegetable area,percentage of grain crop area and livestock per unit area for deep groundwater. | Jing LIU Chengjun ZHANG Peng LI Shunjiang LI Maoting MA Guoyin ZHANG Xianbiao GAO Changlin KOU Lihua JIANG Tongke ZHAO | 2019 | Asian Agricultural Research2019，11，9： | 1 |
| 6 | Expert consensus on prevention and cardiopulmonary resuscitation for cardiac arrest in COVID-19显示文摘Background:Cardiopulmonary resuscitation(CPR)strategies in COVID-19 patients differ from those in patients suffering from cardiogenic cardiac arrest.During CPR,both healthcare and non-healthcare workers who provide resuscitation are at risk of infection.The Working Group for Expert Consensus on Prevention and Cardiopulmonary Resuscitation for Cardiac Arrest in COVID-19 has developed this Chinese Expert Consensus to guide clinical practice of CPR in COVID-19 patients.Main recommendations:1)A medical team should be assigned to evaluate severe and critical COVID-19 for early monitoring of cardiac-arrest warning signs.2)Psychological counseling and treatment are highly recommended,since sympathetic and vagal abnormalities induced by psychological stress from the COVID-19 pandemic can induce cardiac arrest.3)Healthcare workers should wear personal protective equipment(PPE).4)Mouth-to-mouth ventilation should be avoided on patients suspected of having or diagnosed with COVID-19.5)Hands-only chest compression and mechanical chest compression are recommended.6)Tracheal-intubation procedures should be optimized and tracheal-intubation strategies should be implemented early.7)CPR should be provided for 20-30 min.8)Various factors should be taken into consideration such as the interests of patients and family members,ethics,transmission risks,and laws and regulations governing infectious disease control.Changes in management:The following changes or modifications to CPR strategy in COVID-19 patients are proposed:1)Healthcare workers should wear PPE.2)Hands-only chest compression and mechanical chest compression can be implemented to reduce or avoid the spread of viruses by aerosols.3)Both the benefits to patients and the risk of infection should be considered.4)Hhealthcare workers should be fully aware of and trained in CPR strategies and procedures specifically for patients with COVID-19. | Wei Song Jie Wei Xiangdong Jian Deren Wang Yanhong Ouyang Yuanshui Liu Xianjin Du Ying Chen Yingqi Zhang Heping Xu Shuming Xianyu Qiong Ning Xiang Li Xiaotong Han Feng Zhan Tao Yu Wenteng Chen Jun Zhang Wenwei Cai Sheng’ang Zhou Shengyang Yi Yu Cao Xiaobei Chen Shunjiang Xu Zong’an Liang Duohu Wu Fen Ai Zhong Wang Qingyi Meng Yuhong Mi Sisen Zhang Rongjia Yang Shouchun Yan Wenbin Han Yong Lin Chuanyun Qian Wenwu Zhang Yan Xiong Jun Lv Baochi Liu Yan Cao Xiaojun He Xuelian Sun Yufang Cao Tian’en Zhou | 2021 | Asian Pacific Journal of Tropical Medicine2021，14，6： | 0 |
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