冠心病是常见的心血管疾病,长期的炎症反应促使患者病情进展与死亡风险增加,残余炎症风险是比低密度脂蛋白胆固醇更强的主要心血管不良事件预测因子。本文从炎症与冠心病的关系入手,结合国内外抗炎治疗方面的最新研究进展,探讨建立残余...冠心病是常见的心血管疾病,长期的炎症反应促使患者病情进展与死亡风险增加,残余炎症风险是比低密度脂蛋白胆固醇更强的主要心血管不良事件预测因子。本文从炎症与冠心病的关系入手,结合国内外抗炎治疗方面的最新研究进展,探讨建立残余炎症风险评估指导下的冠心病二级预防策略。Coronary heart disease is a common cardiovascular condition. The long-term inflammatory response of patients contributes to the progression of the disease and an increased risk of death. Residual inflammatory risk is a stronger predictor of cardiovascular adverse events than low density lipoprotein cholesterol. The secondary prevention strategies of coronary heart disease under the guidance of residual inflammation risk assessment were discussed according to the relationship between inflammation and coronary heart disease as well as the latest clinical research advances in the anti-inflammatory treatment.展开更多
车载网VANETs(vehicular ad hoc networks)的隐私安全问题,提出隐私保护安全通信协议PPSCP(privacy preserving secure communication protocol)。PPSCP匿名地认证安全消息,从而保护车辆隐私,阻止非法车辆跟踪,并且平衡了隐私与身份识...车载网VANETs(vehicular ad hoc networks)的隐私安全问题,提出隐私保护安全通信协议PPSCP(privacy preserving secure communication protocol)。PPSCP匿名地认证安全消息,从而保护车辆隐私,阻止非法车辆跟踪,并且平衡了隐私与身份识别的关系。同时PPSCP采用了有效的撤销机制,降低了撤销列表的尺寸。此外,PPSCP能够防御重放攻击和拒绝服务攻击。通过与S3P的安全性能对比分析,结果表明,PPSCP有效地降低了安全消息处理时延,减少了撤销列表尺寸,占用带宽少,提高数据传输率。展开更多
The activity of two Cu/SiO2 catalysts prepared by the chemisorption hydrolysis technique has been tested in the hydrogenation reaction of 3-methyl-cyclohexanone. Both catalysts were found to be very active at 60 ℃ an...The activity of two Cu/SiO2 catalysts prepared by the chemisorption hydrolysis technique has been tested in the hydrogenation reaction of 3-methyl-cyclohexanone. Both catalysts were found to be very active at 60 ℃ and 1 atm of H2. Characterization of the materials by FT-IR of adsorbed CO and TEM put in light the presence of well formed Cu cristallites. By assuming a cuboctahedral model we could show that the hydrogenation activity is linked to high coordination sites on the metal particle. A comparison is also reported with a sample prepared by ammonia evaporation that was found to be inactive in the hydrogenation reaction under the same experimental conditions.展开更多
文摘冠心病是常见的心血管疾病,长期的炎症反应促使患者病情进展与死亡风险增加,残余炎症风险是比低密度脂蛋白胆固醇更强的主要心血管不良事件预测因子。本文从炎症与冠心病的关系入手,结合国内外抗炎治疗方面的最新研究进展,探讨建立残余炎症风险评估指导下的冠心病二级预防策略。Coronary heart disease is a common cardiovascular condition. The long-term inflammatory response of patients contributes to the progression of the disease and an increased risk of death. Residual inflammatory risk is a stronger predictor of cardiovascular adverse events than low density lipoprotein cholesterol. The secondary prevention strategies of coronary heart disease under the guidance of residual inflammation risk assessment were discussed according to the relationship between inflammation and coronary heart disease as well as the latest clinical research advances in the anti-inflammatory treatment.
文摘车载网VANETs(vehicular ad hoc networks)的隐私安全问题,提出隐私保护安全通信协议PPSCP(privacy preserving secure communication protocol)。PPSCP匿名地认证安全消息,从而保护车辆隐私,阻止非法车辆跟踪,并且平衡了隐私与身份识别的关系。同时PPSCP采用了有效的撤销机制,降低了撤销列表的尺寸。此外,PPSCP能够防御重放攻击和拒绝服务攻击。通过与S3P的安全性能对比分析,结果表明,PPSCP有效地降低了安全消息处理时延,减少了撤销列表尺寸,占用带宽少,提高数据传输率。
文摘The activity of two Cu/SiO2 catalysts prepared by the chemisorption hydrolysis technique has been tested in the hydrogenation reaction of 3-methyl-cyclohexanone. Both catalysts were found to be very active at 60 ℃ and 1 atm of H2. Characterization of the materials by FT-IR of adsorbed CO and TEM put in light the presence of well formed Cu cristallites. By assuming a cuboctahedral model we could show that the hydrogenation activity is linked to high coordination sites on the metal particle. A comparison is also reported with a sample prepared by ammonia evaporation that was found to be inactive in the hydrogenation reaction under the same experimental conditions.
