通过建立一类具有自愿咨询和检测(voluntary counseling and testing,VCT)意识分类的HIV/AIDS传染病模型,确定了模型的基本再生数,证明了当R_(0)<1时,无病平衡点全局渐近稳定;当R_(0)>1时,无病平衡点不稳定,地方病平衡点局部渐近...通过建立一类具有自愿咨询和检测(voluntary counseling and testing,VCT)意识分类的HIV/AIDS传染病模型,确定了模型的基本再生数,证明了当R_(0)<1时,无病平衡点全局渐近稳定;当R_(0)>1时,无病平衡点不稳定,地方病平衡点局部渐近稳定且疾病一致持久。通过关键参数对基本再生数的敏感性分析表明,VCT意识与基本再生数之间存在着强相关性。数值模拟结果表明:大规模扩大艾滋病自愿咨询和检测,覆盖率达到感染人数的90%后,艾滋病人数量呈现低流行状态且有下降趋势。说明提高VCT意识可以控制艾滋病人数量,从而有效控制疾病的传播。展开更多
This paper demonstrates the rhetoric technique, narrative function and sign decoding of Nabokocian otherworld in LoBta and Pale Fire to detect not only the presence of the metaphysical otherworld, but also the faint i...This paper demonstrates the rhetoric technique, narrative function and sign decoding of Nabokocian otherworld in LoBta and Pale Fire to detect not only the presence of the metaphysical otherworld, but also the faint influence upon the living. Under the narrative strategies of the otherworld lies Nabokov＇s aesthetic ethics, which make those who label Nabokov pessimistic and indifferent to be aware of his persistent attempt to push beyond the boundaries of human consciousness and his sincere concern and deep sympathy for the misery of men.展开更多
文摘通过建立一类具有自愿咨询和检测(voluntary counseling and testing,VCT)意识分类的HIV/AIDS传染病模型,确定了模型的基本再生数,证明了当R_(0)<1时,无病平衡点全局渐近稳定;当R_(0)>1时,无病平衡点不稳定,地方病平衡点局部渐近稳定且疾病一致持久。通过关键参数对基本再生数的敏感性分析表明,VCT意识与基本再生数之间存在着强相关性。数值模拟结果表明:大规模扩大艾滋病自愿咨询和检测,覆盖率达到感染人数的90%后,艾滋病人数量呈现低流行状态且有下降趋势。说明提高VCT意识可以控制艾滋病人数量,从而有效控制疾病的传播。
文摘This paper demonstrates the rhetoric technique, narrative function and sign decoding of Nabokocian otherworld in LoBta and Pale Fire to detect not only the presence of the metaphysical otherworld, but also the faint influence upon the living. Under the narrative strategies of the otherworld lies Nabokov＇s aesthetic ethics, which make those who label Nabokov pessimistic and indifferent to be aware of his persistent attempt to push beyond the boundaries of human consciousness and his sincere concern and deep sympathy for the misery of men.
