全文获取类型
收费全文 | 2900篇 |
免费 | 7篇 |
国内免费 | 1篇 |
专业分类
管理学 | 170篇 |
民族学 | 124篇 |
人才学 | 7篇 |
人口学 | 309篇 |
丛书文集 | 75篇 |
教育普及 | 3篇 |
理论方法论 | 621篇 |
综合类 | 367篇 |
社会学 | 1126篇 |
统计学 | 106篇 |
出版年
2020年 | 5篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 15篇 |
2013年 | 13篇 |
2012年 | 351篇 |
2011年 | 287篇 |
2010年 | 103篇 |
2009年 | 89篇 |
2008年 | 138篇 |
2007年 | 140篇 |
2006年 | 154篇 |
2005年 | 107篇 |
2004年 | 84篇 |
2003年 | 92篇 |
2002年 | 73篇 |
2001年 | 57篇 |
2000年 | 80篇 |
1999年 | 87篇 |
1998年 | 81篇 |
1997年 | 106篇 |
1996年 | 33篇 |
1995年 | 43篇 |
1994年 | 28篇 |
1993年 | 30篇 |
1992年 | 60篇 |
1991年 | 58篇 |
1990年 | 39篇 |
1989年 | 45篇 |
1988年 | 54篇 |
1987年 | 58篇 |
1986年 | 49篇 |
1985年 | 37篇 |
1984年 | 45篇 |
1983年 | 40篇 |
1982年 | 50篇 |
1981年 | 43篇 |
1980年 | 54篇 |
1979年 | 13篇 |
1978年 | 6篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1975年 | 4篇 |
1974年 | 5篇 |
1973年 | 7篇 |
1971年 | 3篇 |
1970年 | 2篇 |
1967年 | 6篇 |
1959年 | 2篇 |
1957年 | 5篇 |
排序方式: 共有2908条查询结果,搜索用时 31 毫秒
91.
This article presents an evaluation framework developed to assess the first-level effects of introducing the Standard Days Method (SDM) in Peru Ministry of Health clinics. Four questions are asked: 1) To what extent do providers routinely achieve SDM service delivery standards? 2) Is the time invested in SDM delivery consistent with program norms? 3) How does SDM delivery compare with delivery of established methods? and 4) How does SDM introduction affect delivery of established methods? A study at 62 clinics demonstrated the framework's usefulness. The Standard Days Method introduction had positive overall effects on the quality of care but provider training needed adjustments. 相似文献
92.
Online sexual behavior may be more completely explained by integrating a Pull Factor analysis, centering on the characteristics of the Internet that make it an appealing outlet for sexuality (e.g., "Triple A Engine") and a Push Factor analysis, centering on characteristics of the offline world that disallow fulfillment of sexual desires. This new framework is utilized in explaining paraphilic (unconventional) sexualities online. Because paraphilics are members of highly concealable, horizontal and rare sexual minorities, they are pushed online by mainstream society. Online, paraphilics interact with similar others, and through lurking, re-learning and self-disclosing, may become sexually empowered. Clinical ramifications of attainment of positive sexual-social identity via empowerment are discussed, as are possible affects on public policy. 相似文献
93.
How does leaving home affect marital timing? An event-history analysis of migration and marriage in Nang Rong, Thailand 总被引:2,自引:0,他引:2
Jampaklay A 《Demography》2006,43(4):711-725
This study examines the effects of migration on marital timing in Thailand between 1984 and 2000 using prospective and retrospective survey data from Nang Rong. In contrast to previous results in the literature, event-history analysis of the longitudinal data reveals a positive, not a negative, effect of lagged migration experience on the likelihood of marriage. The findings also indicate gender differences. Migration's positive impact is independent of other life events for women but is completely "explained" by employment for men. 相似文献
94.
Strahle A Stainton MC 《Women and birth : journal of the Australian College of Midwives》2006,19(1):17-21
Comments of women engaged in a longitudinal study of urinary leaking from first trimester to 12 months following birth provide the data for this paper. Useful insights into the factors contributing to the maintenance of silence and ways to break the barriers to discussion of urinary incontinence before, during and following pregnancy were revealed. Given the prevalence of 30% of Australian women experiencing urinary leaking following pregnancy, it is imperative that midwives engage in discussion and support prevention of this unwelcome outcome of childbirth. 相似文献
95.
Graham S Gill A Lamers D 《Women and birth : journal of the Australian College of Midwives》2006,19(1):23-28
A very small proportion of newborns fail to establish a normal respiratory pattern without some assistance at birth and newborns requiring resuscitative measures at birth should have a skilled practitioner able to provide it. In this small hospital midwives felt unskilled in newborn resuscitation and paediatricians were not always immediately available. A stakeholder group gathered to discuss the problem. A training program was implemented that improved the skills, confidence and support of the attending midwife to resuscitate the newborn effectively. The aim was to improve the outcome for the infant whilst maintaining the mother's choice of birthing in a small local hospital close to family and friends. 相似文献
96.
为民主而斗争是一项政治任务,也是一项教育任务.要促进充满活力的民主文化的产生,最根本的就是要认识到,教育必须被作为公共利益来看待.使高等教育沦为公司文化的附庸违反了教育支持和发展包含民主在内的公共空间的重要社会规则.从汤姆斯·杰佛逊到约翰·杜威,再到C.赖特·米尔斯,赞颂教育对于民主公共生活的根本的重要性成为一个悠久的传统. 相似文献
97.
98.
自18世纪以降,源于传统的藏医学的布里亚特医学,在外贝加尔地区逐渐兴盛。布里亚特医疗传统秉承了两个主要的医学传统:一是布里亚特民间医学;另一个是本文探讨的主要内容,即精深的藏医学传统。藏医学是借助蒙古医药文化传播到布里亚特地区的。藏蒙医学传统,特别是药理学知识最终被布里亚特人接受和采纳,期间经历了较长时间的本土化过程。同时,布里亚特也为藏蒙医学文化的传播和发展做出了重要贡献。 相似文献
99.
直链淀粉和类脂化合物是通过采用差异量热比色法(DSC),在过量的水中把玉蜀黍淀粉、豌豆、玉米、小麦、马铃薯、蜡质种玉米从20℃加热到180℃,然后冷却到4℃,最后再加热至180℃除去淀粉而形成的。直链淀粉和软化淀粉的冷却曲线显示了放热期(<70℃)是由直链淀物链组成的原理.覆盖范围0~95%的直链淀粉和支链淀粉混合物类似于被加热和被冷却.直链糖链淀物链的缔合被支链淀粉所限制. 相似文献
100.
施工图中梁钢筋的读取和统计是提高预算工作效率和施工准备的关键。对计算机自动读取DXF文件格式的结构施工图进行了深入分析,并在此基础上对钢筋统计的总体设计和几个主要模块的功能和实现方法进行了探讨。 相似文献