首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   43篇
  免费   0篇
管理学   4篇
人才学   2篇
人口学   5篇
理论方法论   3篇
综合类   1篇
社会学   22篇
统计学   6篇
  2020年   2篇
  2019年   1篇
  2018年   2篇
  2017年   5篇
  2016年   1篇
  2015年   1篇
  2014年   1篇
  2013年   8篇
  2012年   3篇
  2011年   3篇
  2006年   3篇
  2003年   1篇
  2001年   1篇
  2000年   1篇
  1997年   1篇
  1994年   1篇
  1993年   1篇
  1989年   1篇
  1987年   1篇
  1985年   1篇
  1984年   1篇
  1981年   2篇
  1975年   1篇
排序方式: 共有43条查询结果,搜索用时 15 毫秒
41.
How and why journalists avoid the population-environment connection   总被引:1,自引:1,他引:0  
Recent surveys show that Americans are less concerned about population than they were 25 years ago, and they are not connecting environmental degradation to population growth. News coverage is a significant variable affecting public opinion, and how reporters frame a problem frequently signals what is causing the problem. Using a random sample of 150 stories about urban sprawl, endangered species and water shortages, Part I of this study shows that only about one story in 10 framed population growth as a source of the problem. Further, only one story in the entire sample mentioned population stability among the realm of possible solutions. Part II presents the results of interviews with 25 journalists whose stories on local environmental problems omitted the causal role of population growth. It shows that journalists are aware of the controversial nature of the population issue, and prefer to avoid it if possible. Most interviewees said that a national phenomenon like population growth was beyond the scope of what they could write as local reporters.  相似文献   
42.
This review of qualitative research examining young Indigenous Australians’ sexual health highlights the profoundly social nature of young people’s sexual lives. Nineteen peer reviewed published papers were identified for inclusion. Findings reveal efforts made by some young Indigenous Australians to control their sexual lives, mitigate risk and maintain their sexual health. The review identified factors which are conducive to sexual health risks and vulnerability, including incomplete knowledge about STIs and safer sexual practices; gossip and ridicule concerning sexual activity and its consequences; damaging expectations about male prerogatives with respect to sexual relationships; limited inter-generational communication about sexual health issues; inadequate school-based sexual health education; and tensions between Indigenous and biomedical explanations of sexual health issues. Future research priorities include a focus on young Indigenous people in cities and towns across Australia, and in regional and remote settings in New South Wales and Victoria; understanding how Indigenous cultural values support young people’s sexual health; young men’s sexual and service-based practices; and the experiences of same-sex attracted and gender diverse youth. This research would inform the design and delivery of culturally safe and acceptable sexual health services and programmes, underpinned by an understanding of factors in young Indigenous Australians’ everyday sexual lives.  相似文献   
43.
    
Bivariate integer-valued time series occur in many areas, such as finance, epidemiology, business etc. In this article, we present bivariate autoregressive integer-valued time-series models, based on the signed thinning operator. Compared to classical bivariate INAR models, the new processes have the advantage to allow for negative values for both the time series and the autocorrelation functions. Strict stationarity and ergodicity of the processes are established. The moments and the autocovariance functions are determined. The conditional least squares estimator of the model parameters is considered and the asymptotic properties of the obtained estimators are derived. An analysis of a real dataset from finance and a simulation study are carried out to assess the performance of the model.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号