Implementation of physically active lessons: A 2-year follow-up

Combining physical activity and academic content is a promising way to improve health and academic learning in schoolchildren. This paper examined the continuation of physically active lessons (PAL) in five Norwegian elementary schools, two years after a 10-month intervention period, which consisted of weekly minimum 2 x 45 min of PAL. Data were collected through semi-structured interviews with nine teachers and five school leaders. The Level of Use instrument was used to assess how the teachers integrated PAL into the school day. Two years after the intervention period, seven of nine teachers conducted PAL regularly, on average one lesson per week. Teachers’ implementation progress varied from struggling with logistics, to stable routine and creative adaption. Perceived benefits for the children, active leadership, and ongoing implementation support seem important for continuation. Introduction of PAL as a school development project, systematic planning from the onset and a gradual introduction of PAL, can be an effective strategy for continuation and long-term sustainability. In addition, the Level of Use instrument was useful to better understand which support mechanisms are needed at different stages in the implementation of PAL.     

Do male reproductive preferences really point to a need to refocus fertility policy?

Independently collected data from a 1994 survey in Accra, Ghana, are used here to verify earlier findings from Demographic and Health Survey (DHS) data which indicate the existence of a closer tie between men's reproductive preferences and contraceptive use, than between the latter and women's preferences. Indeed, the findings corroborate the earlier studies and suggest that fertility transition in Africa may be accelerated if the family planning establishment would recognize the contribution of the male role, and bring men into the mainstream of their agenda.     

浅析IF-条件句的语用功能

结合语法学家的研究成果,提出并分析if-条件句的13种主要语用功能及其语言特点.if-条件句的用法相当复杂,其功能还需进一步探讨.     

千名育龄人群生育意愿的调查与分析

根据2002年8月在湖南省进行的一项育龄人群生育意愿调查,本文分析了人们生育意愿的一些变化特点,并就如何更加有力地引导人们生育意愿的健康变化提出一些建议。     

简论生育权及其立法构想

本文简要论述了生育权的概念、性质、内容及立法的必要性, 并提出了我国生育权的立法构想。     

中国电影在进步文化运动中的历史嬗变--兼与中国现代文学比较

中国电影产生以来即成为中国进步化运动的重要组成部分，但其鲜明的工业生产属性(资本主要由官僚买办把持)和广泛的群众性，使其与中国现代学比较起来，行进的步伐要滞后一些。1931年后，左翼电影运动的开展及时代的呼唤，进步电影逐渐发展壮大起来，成为表现反帝抗日主旨的重要艺术形式。     

论我国适度的社会保障水平选择

世界各国社会保障制度的内容基本相同,但各国的社会保障水平却各具特色。目前,我国的社会保障体系建设正在不断地完善过程当中,但对保障水平的总体目标和思路却缺乏明确统一的认识。有鉴于此,借鉴先进市场经济国家的经验,结合我国的实际国情,确立适度的社会保障水平,是我国社会保障体系建设的重要环节,也是我们理论研究和实际工作应该明确的出发点。     

我国人口转变模式及其形成机制

通过对我国近 5 0年人口出生率、死亡率、自然增长率统计数据的分析认为 ,我国已经完成了由传统的人口再生产类型向现代的人口再生产类型的人口转变过程。又通过对我国 5 0年来的人口转变模式的分析 ,探讨了其转变机制 ,指出社会经济发展和计划生育政策是人口转变的根本原因     

简论生育权及其立法构想

本文简要论述了生育权的概念、性质、内容及立法的必要性, 并提出了我国生育权的立法构想。     

天津城市化水平综合测度研究

把人口城市化作为城市化水平的惟一测度指标,似乎不能全面具体地反映城市化水平。而真正认识和测度城市化水平,对于我国的城市建设和国民经济发展具有重要意义。针对这一问题,文章分析了人口城市化的片面性,提出了新的城市化概念。在此基础上,依据牛顿第二定律,建立了基于城市发展评价城市化水平的城市化水平综合测度模型,对天津市基于城市发展的城市化水平进行了测度,并且对2010年我国部分省、市基于城市发展的城市化水平进行了测度,测度结果与以人口城市化为惟一测度指标的城市化水平进行了对比研究,表明利用城市化水平综合测度模型测度城市化水平的合理性。