Security issues are always difficult to deal with in mobile ad hoc networks. People seldom studied the costs of those security schemes respectively and for some security methods designed and adopted beforehand, their ...Security issues are always difficult to deal with in mobile ad hoc networks. People seldom studied the costs of those security schemes respectively and for some security methods designed and adopted beforehand, their effects are often investigated one by one. In fact, when facing certain attacks, different methods would respond individually and result in waste of resources. Making use of the cost management idea, we analyze the costs of security measures in mobile ad hoc networks and introduce a security framework based on security mechanisms cost management. Under the framework, the network system’s own tasks can be finished in time and the whole network’s security costs can be decreased. We discuss the process of security costs computation at each mobile node and in certain nodes groups. To show how to use the proposed security framework in certain applications, we give examples of DoS attacks and costs computation of defense methods. The results showed that more secure environment can be achieved based on the security framework in mobile ad hoc networks.展开更多
目的:探讨解毒化瘀汤联合刺络放血疗法对血瘀热结证寻常型银屑病患者血清炎性因子及cAMP反应元件结合蛋白(CREB)信号传导通路相关蛋白表达的影响。方法:选取2018年5月到2020年5月武警成都支队卫生队和武警四川总队医院收治的寻常型银屑...目的:探讨解毒化瘀汤联合刺络放血疗法对血瘀热结证寻常型银屑病患者血清炎性因子及cAMP反应元件结合蛋白(CREB)信号传导通路相关蛋白表达的影响。方法:选取2018年5月到2020年5月武警成都支队卫生队和武警四川总队医院收治的寻常型银屑病患者共80例,随机分成对照组(维A酸哈西奈德乳膏治疗)与观察组(解毒化瘀汤联合刺络放血疗法治疗),各40例。两组均以4周为1个疗程,共治疗2个疗程。对比两组疗效、中医证候积分、血清炎性因子及CREB信号传导通路相关蛋白表达水平。结果:观察组的临床总有效率高于对照组(P<0.05)。两组治疗后中医证候主证、次证总评分和血清白介素-17(IL-17)、肿瘤坏死因子-α(TNF-α)、干扰素-γ(IFN-γ)、C反应蛋白(CRP)水平以及CREB微小核糖核酸(m RNA)、PKA m RNA、P38 m RNA相对表达量均较治疗前下降,且观察组较对照组低(P<0.05)。结论:解毒化瘀汤联合刺络放血疗法治疗血瘀热结证寻常型银屑病患者,疗效显著,可有效改善临床症状,减轻机体炎性反应,其主要作用机制可能与调节CREB信号传导通路相关蛋白表达有关。展开更多
文摘Security issues are always difficult to deal with in mobile ad hoc networks. People seldom studied the costs of those security schemes respectively and for some security methods designed and adopted beforehand, their effects are often investigated one by one. In fact, when facing certain attacks, different methods would respond individually and result in waste of resources. Making use of the cost management idea, we analyze the costs of security measures in mobile ad hoc networks and introduce a security framework based on security mechanisms cost management. Under the framework, the network system’s own tasks can be finished in time and the whole network’s security costs can be decreased. We discuss the process of security costs computation at each mobile node and in certain nodes groups. To show how to use the proposed security framework in certain applications, we give examples of DoS attacks and costs computation of defense methods. The results showed that more secure environment can be achieved based on the security framework in mobile ad hoc networks.
文摘目的:探讨解毒化瘀汤联合刺络放血疗法对血瘀热结证寻常型银屑病患者血清炎性因子及cAMP反应元件结合蛋白(CREB)信号传导通路相关蛋白表达的影响。方法:选取2018年5月到2020年5月武警成都支队卫生队和武警四川总队医院收治的寻常型银屑病患者共80例,随机分成对照组(维A酸哈西奈德乳膏治疗)与观察组(解毒化瘀汤联合刺络放血疗法治疗),各40例。两组均以4周为1个疗程,共治疗2个疗程。对比两组疗效、中医证候积分、血清炎性因子及CREB信号传导通路相关蛋白表达水平。结果:观察组的临床总有效率高于对照组(P<0.05)。两组治疗后中医证候主证、次证总评分和血清白介素-17(IL-17)、肿瘤坏死因子-α(TNF-α)、干扰素-γ(IFN-γ)、C反应蛋白(CRP)水平以及CREB微小核糖核酸(m RNA)、PKA m RNA、P38 m RNA相对表达量均较治疗前下降,且观察组较对照组低(P<0.05)。结论:解毒化瘀汤联合刺络放血疗法治疗血瘀热结证寻常型银屑病患者,疗效显著,可有效改善临床症状,减轻机体炎性反应,其主要作用机制可能与调节CREB信号传导通路相关蛋白表达有关。
