The Stockholm Convention on persistent organic pollutants （POPs） was adopted in 2001. This year is the 10th anniversary of the adoption of the Convention. Until now, 22 chemicals or chemical categories have been lis...The Stockholm Convention on persistent organic pollutants （POPs） was adopted in 2001. This year is the 10th anniversary of the adoption of the Convention. Until now, 22 chemicals or chemical categories have been listed as POPs in the Stockholm Convention. The POPs Research Center was established in Tsinghua University in the same year when the Convention was adopted. In the last ten years, much work has been done by Chinese researchers to understand the environ- mental risk of POPs in China. This article aims to review the recent research progress of our POPs Research Center and some other Chinese researchers＇ studies in addressing the environmental risk of POPs, including the priority screening and inventory study of POPs, monitoring and modeling of POPs pollution and exposure, and environ- mental risk assessment and modeling of POPs. Although great advances in addressing the environmental risk of POPs have been made in recent years, we are still facing quite a few problems, such as data scarcity and uncertainty in environmental risk assessment of POPs. The study on the effect of POPs mixtures is in its infancy and currently POPs are usually assessed from legal perspective by risk assessment of single chemicals. These problems should be well addressed by further efforts. Further studies should also be taken in future to study environment risk of POPs by considering aspects of coupled dynamics between climate processes and POPs. Such sound scientific, riskbased information can support decision-making aiming to effectively minimize the risk level of POPs.展开更多
目的青春期功能失调性子宫出血发病率逐年升高。本研究探讨孕激素或雌激素治疗青春期功能失调性子宫出血的疗效。方法选择2018-03-01—2019-03-31长葛市人民医院收治的青春期功能失调性子宫出血患者68例,根据年龄和月经史分为两组,每组...目的青春期功能失调性子宫出血发病率逐年升高。本研究探讨孕激素或雌激素治疗青春期功能失调性子宫出血的疗效。方法选择2018-03-01—2019-03-31长葛市人民医院收治的青春期功能失调性子宫出血患者68例,根据年龄和月经史分为两组,每组各34例。对照组给予雌激素治疗,观察组给予孕激素治疗。治疗后,比较两组疗效、止血情况、心理状态及不良反应。结果观察组治疗有效率为97.06%,高于对照组的76.47%,χ~2=4.610,P=0.012;观察组控制出血时间为(26.37±12.56)h,低于对照组的(38.62±17.34)h,t=3.336,P=0.001;完全止血时间为(42.52±18.76)h,低于对照组的(57.43±24.49)h,t=2.818,P=0.006。治疗后,观察组心理状态评估量表(psychological state assessment scale,MSSNS)评分为(56.62±3.71)分,低于对照组的(69.46±4.14)分,t=13.468,P<0.001;治疗期间,观察组不良反应发生率为11.76%,低于对照组的32.35%,χ~2=4.191,P=0.041。结论青春期功能失调性子宫出血患者采用孕激素为主的治疗可迅速止血,从而降低患者负性情绪,且不良反应较少,效果高于使用雌激素为主的治疗。展开更多
文摘The Stockholm Convention on persistent organic pollutants （POPs） was adopted in 2001. This year is the 10th anniversary of the adoption of the Convention. Until now, 22 chemicals or chemical categories have been listed as POPs in the Stockholm Convention. The POPs Research Center was established in Tsinghua University in the same year when the Convention was adopted. In the last ten years, much work has been done by Chinese researchers to understand the environ- mental risk of POPs in China. This article aims to review the recent research progress of our POPs Research Center and some other Chinese researchers＇ studies in addressing the environmental risk of POPs, including the priority screening and inventory study of POPs, monitoring and modeling of POPs pollution and exposure, and environ- mental risk assessment and modeling of POPs. Although great advances in addressing the environmental risk of POPs have been made in recent years, we are still facing quite a few problems, such as data scarcity and uncertainty in environmental risk assessment of POPs. The study on the effect of POPs mixtures is in its infancy and currently POPs are usually assessed from legal perspective by risk assessment of single chemicals. These problems should be well addressed by further efforts. Further studies should also be taken in future to study environment risk of POPs by considering aspects of coupled dynamics between climate processes and POPs. Such sound scientific, riskbased information can support decision-making aiming to effectively minimize the risk level of POPs.
文摘目的青春期功能失调性子宫出血发病率逐年升高。本研究探讨孕激素或雌激素治疗青春期功能失调性子宫出血的疗效。方法选择2018-03-01—2019-03-31长葛市人民医院收治的青春期功能失调性子宫出血患者68例,根据年龄和月经史分为两组,每组各34例。对照组给予雌激素治疗,观察组给予孕激素治疗。治疗后,比较两组疗效、止血情况、心理状态及不良反应。结果观察组治疗有效率为97.06%,高于对照组的76.47%,χ~2=4.610,P=0.012;观察组控制出血时间为(26.37±12.56)h,低于对照组的(38.62±17.34)h,t=3.336,P=0.001;完全止血时间为(42.52±18.76)h,低于对照组的(57.43±24.49)h,t=2.818,P=0.006。治疗后,观察组心理状态评估量表(psychological state assessment scale,MSSNS)评分为(56.62±3.71)分,低于对照组的(69.46±4.14)分,t=13.468,P<0.001;治疗期间,观察组不良反应发生率为11.76%,低于对照组的32.35%,χ~2=4.191,P=0.041。结论青春期功能失调性子宫出血患者采用孕激素为主的治疗可迅速止血,从而降低患者负性情绪,且不良反应较少,效果高于使用雌激素为主的治疗。
