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   3408篇
  免费   121篇
  国内免费   14篇
管理学   250篇
劳动科学   6篇
民族学   95篇
人口学   179篇
丛书文集   765篇
理论方法论   179篇
综合类   1197篇
社会学   388篇
统计学   484篇
  2023年   16篇
  2022年   28篇
  2021年   39篇
  2020年   41篇
  2019年   44篇
  2018年   49篇
  2017年   102篇
  2016年   52篇
  2015年   85篇
  2014年   108篇
  2013年   286篇
  2012年   180篇
  2011年   223篇
  2010年   219篇
  2009年   238篇
  2008年   242篇
  2007年   255篇
  2006年   240篇
  2005年   210篇
  2004年   100篇
  2003年   78篇
  2002年   88篇
  2001年   87篇
  2000年   59篇
  1999年   46篇
  1998年   43篇
  1997年   29篇
  1996年   24篇
  1995年   23篇
  1994年   29篇
  1993年   16篇
  1992年   24篇
  1991年   12篇
  1990年   12篇
  1989年   16篇
  1988年   21篇
  1987年   16篇
  1986年   20篇
  1985年   9篇
  1984年   17篇
  1983年   14篇
  1982年   16篇
  1981年   19篇
  1980年   20篇
  1979年   6篇
  1978年   7篇
  1977年   5篇
  1976年   6篇
  1968年   4篇
  1965年   4篇
排序方式: 共有3543条查询结果,搜索用时 265 毫秒
41.
E Gao 《人口研究》1987,(5):43-48
The question of how to measure the influence of family planning in fertility has been addressed by numerous international scholars. Highlighted briefly here are some of the methods endorsed by United Nations publications and recognized by scholars of various countries: 1) Standardization; 2) John Bongaarts model; 3) Trend analysis; 4) Wishik model; 5) Converse model of Dorothy Nartman; 6) Potter model; 7) Nathan Keyfitz model; 8) "Plural model"; 9) Model analysis.  相似文献   
42.
在语言使用过程中,动结式逐渐被语法化成表示致使—结果的特定语法形式,被语法化了的不是具体的词汇单位,而是一种语法结构或构式,即任何两个没有语义关联的动词只要并列出现在一个句子里就会形成致使—结果的语义关系。动结式里的两个动词各自表示一个事件,每个事件都能表述为一个独立的句子,通过移位和融合等句法操作合并在一起,临时构成独立的动词单位,从而在句法上把分别表示不同事件的两个句子合并为一个,实现表达的简约性。因为题元指派首先在底层结构完成,而动结式是表层句法操作的结果,所以动结式的语义关系仍需回到合并前的两个句子里确认。这种追根溯源的底层结构解释,清晰地揭示了动结式表层所呈现的复杂的句法和语义关系,是一种对于动结式的句法派生和形成机制提出的全新看法。  相似文献   
43.
44.
When the author of this article found herself in need of emergency medical help, her role reversed from physician to patient. Unlike many patients who are traumatized by an emergency department visit, Dr. Blumberg was pleased with her treatment. However, in later reviewing the experience with her nonphysician husband, she was amazed to learn that he was left with negative feelings about how he was treated by the frontline staff and about the appearance of the facility. As a result, Dr. Blumberg wrote this article detailing the importance of frontline staff performance and exploring ways staff can be motivated to gain maximum job and patient satisfaction.  相似文献   
45.
The author analyzes the demographic characteristics of the elderly population in Poland. The focus is on the spatial distribution of the elderly around the country.  相似文献   
46.
Summary Analysis of data from various phases of a study of post-partum amenorrhoea in Bangladesh illustrated good aggregate consistency of response on menstrual status, but less individual consistency on duration of post-partum amenorrhoea. Using life table techniques, the median duration of amenorrhoea was calculated as 19.9 months for women with births between February and September 1974. There were substantial seasonal variations in duration, with the median decreasing from 21.5 months for women with February births to 16.9 months for those with September births. By contrast, the median duration of post-partum amenorrhoea varies by only two months for women in the lowest and highest quartiles of weight and weight for height. The seasonal pattern was similar for all weight groups.  相似文献   
47.
The author presents a general review of the demographic transition in Poland from 1750 to the present day. Official data are used to describe the fluctuations in birth and death rates over this period.  相似文献   
48.
49.
S Du  Z Yuan  X Fang 《人口研究》1983,(3):49-53
Because of the popularization of a responsible agricultural production system, the livilihood of peasants has been improving greatly, while the demands and needs of the general public are also increasing at the same time. Still under the influence of the traditional belief of carrying on one's family line and emphasis on having male children, married people prefer to have more childre, and the birth rate is now rising again. In order to solve this new problem, we need to teach the peasants national policies on population, land utilization, and food supply. In order to initiate a new situation in family planning work, we need to control this "gold key" of ideological education and propaganda. The emphasis should be placed on ideological education for cadres at all levels as well as the general public in order that they may understand the Party's strategy. Education on the national strategy should be combined with material interests of the peasants, and reward and punishment in production should also be linked up with that of family planning. Social measures are needed to reduce economic burdens of the peasants, offer better treatment for single-child households, and provide adequate care for old and retired people. Family planning projects should be consolidated and improved. Scientific management, facilities and techniques for birth control, compensation for working personnel in family planning, and other practical problems deserve immediate attention and solution.  相似文献   
50.
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