中国已经批准了烟草控制框架公约(Framework Convention on Tobacco Control,FCTC),并致力于执行烟草控制方案,以对抗烟草使用带来的大量不良健康和经济后果。医生需要在这场斗争中像其它国家,如澳大利亚等实施严厉烟草控制政策的国家一...中国已经批准了烟草控制框架公约(Framework Convention on Tobacco Control,FCTC),并致力于执行烟草控制方案,以对抗烟草使用带来的大量不良健康和经济后果。医生需要在这场斗争中像其它国家,如澳大利亚等实施严厉烟草控制政策的国家一样,发挥主导作用。目前中国的问题包括医生自身的吸烟状况及其对患者影响作用的低估,这意味着他们潜在的积极作用远未实现。医生在烟草控制中责无旁贷。首先应从他们自身的戒烟等行为和做法开始,如果医生为吸烟者,则应戒烟,并指导患者及患者家属不吸烟。提倡医院和医疗机构无烟,亦为医生的首要任务。作为人们试图改善自身健康状况和接受疾病治疗的医疗中心,允许吸烟的行为是完全不合理的。责任亦在于医生工作的机构和代表医生的专业团体机构,应为医生提供有助于控制他们自己以及患者烟草使用的信息、培训和支持。展开更多
A passivity concept for switched systems with state-dependent switching is presented. Each subsystem has a storage function to describe the ＂energy＂ stored in the subsystem. The passivity property of a switched syst...A passivity concept for switched systems with state-dependent switching is presented. Each subsystem has a storage function to describe the ＂energy＂ stored in the subsystem. The passivity property of a switched system is given in terms of multiple storage functions. Each storage function is allowed to grow on the ＂switched on＂ time sequence but the total growth is bounded by a certain function. Stability is inferred from passivity and asymptotic stability is achieved under further assumptions of a detectivity property of a local form and boundedness of the total change of some storage function on its inactive intervals. A state-dependent switching law that renders the system passive is also designed.展开更多
Introduction: Skin prick testing (SPT) is a common test to diagnose IgE sensitization and the rate of adverse reactions is very low. Case Presentation: 29-year-old woman with anaphylactic reaction to routine SPT with ...Introduction: Skin prick testing (SPT) is a common test to diagnose IgE sensitization and the rate of adverse reactions is very low. Case Presentation: 29-year-old woman with anaphylactic reaction to routine SPT with 11 allergens (aero and food). Discussion: Allergy profile included multiple food and inhalant allergies, polysensitization, prior episode of anaphylaxis to mushrooms, active eczema and active hay fever but not active asthma. Conclusion: Anaphylaxis to SPT, although a rare event, is unpredictable necessitating availability of appropriate personnel and adequate resuscitation facilities for all testing.展开更多
文摘中国已经批准了烟草控制框架公约(Framework Convention on Tobacco Control,FCTC),并致力于执行烟草控制方案,以对抗烟草使用带来的大量不良健康和经济后果。医生需要在这场斗争中像其它国家,如澳大利亚等实施严厉烟草控制政策的国家一样,发挥主导作用。目前中国的问题包括医生自身的吸烟状况及其对患者影响作用的低估,这意味着他们潜在的积极作用远未实现。医生在烟草控制中责无旁贷。首先应从他们自身的戒烟等行为和做法开始,如果医生为吸烟者,则应戒烟,并指导患者及患者家属不吸烟。提倡医院和医疗机构无烟,亦为医生的首要任务。作为人们试图改善自身健康状况和接受疾病治疗的医疗中心,允许吸烟的行为是完全不合理的。责任亦在于医生工作的机构和代表医生的专业团体机构,应为医生提供有助于控制他们自己以及患者烟草使用的信息、培训和支持。
基金This work was supported by the Hong Kong Research Grants Council (No. CityU 1232/02E), City University of Hong Hong (No. 9380026) and theNational Natural Science Foundation of China (No.60574013, 60274009). Part of the work was carried out when both authors were at City Universityof Hong Kong.
文摘A passivity concept for switched systems with state-dependent switching is presented. Each subsystem has a storage function to describe the ＂energy＂ stored in the subsystem. The passivity property of a switched system is given in terms of multiple storage functions. Each storage function is allowed to grow on the ＂switched on＂ time sequence but the total growth is bounded by a certain function. Stability is inferred from passivity and asymptotic stability is achieved under further assumptions of a detectivity property of a local form and boundedness of the total change of some storage function on its inactive intervals. A state-dependent switching law that renders the system passive is also designed.
文摘Introduction: Skin prick testing (SPT) is a common test to diagnose IgE sensitization and the rate of adverse reactions is very low. Case Presentation: 29-year-old woman with anaphylactic reaction to routine SPT with 11 allergens (aero and food). Discussion: Allergy profile included multiple food and inhalant allergies, polysensitization, prior episode of anaphylaxis to mushrooms, active eczema and active hay fever but not active asthma. Conclusion: Anaphylaxis to SPT, although a rare event, is unpredictable necessitating availability of appropriate personnel and adequate resuscitation facilities for all testing.
