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用“活动式作业”培养学生的实验能力 被引量:1
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作者 蔡剑 《物理教学探讨(中学教学教研版)》 2011年第8期72-74,共3页
“活动式作业”是指学生利用生活中常用工具及日常用品作为实验器材,或个人或以小组为单位进行的课外实验型作业,改变了作业的形式,让学生在动手操作中体验、感悟,提升了学生的观察、分析、归纳、设计、探究、创新等方面的实验能力。
关键词 活动式作业 实验能力
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Mathematical model of the effects of government intervention and rehabilitation of prostitution
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作者 Aprillya Lanz Zakar White Terry L. Alford 《International Journal of Biomathematics》 SCIE 2018年第3期37-52,共16页
In the United States, prostitution is considered illegal in all but one state; Nevada allows some legal activities in exchange for substantial guidelines. In 2010, approxi- mately 43,600 females were arrested for pros... In the United States, prostitution is considered illegal in all but one state; Nevada allows some legal activities in exchange for substantial guidelines. In 2010, approxi- mately 43,600 females were arrested for prostitution. Numerous intervention programs were established in order to obstruct the lifestyle of a prostitute (PRP~ Project ROSE, etc.). There are many documentations and programs that share their forethought on prostitution; however, few target prostitution directly. To determine the dynamics of prostitution, this paper constructs a four-class compartmental model that focuses on the effectiveness of government intervention and rehabilitation of prostitutes mathematically. The basic reproductive number, R0, helps to discover the threshold values for the dynamics of prostitution to become both prevalent or absent in society. This paper predominately observes government intervention to curtail a prostitution prevalent society. Various parameters and variables help to define and indicate the dynamics of pros- titution to construct viable simulations. Successful prostitution interaction prevention deemed essential in prostitution prevention; however, government intervention corresponding with successful rehabilitation competitively challenges prostitution interaction prevention in reducing basic reproductive values. 展开更多
关键词 Prostitution model EPIDEMIOLOGY rehabilitation of prostitutes
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