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   2825篇
  免费   58篇
  国内免费   1篇
管理学   402篇
民族学   8篇
人口学   250篇
丛书文集   17篇
理论方法论   307篇
综合类   35篇
社会学   1106篇
统计学   759篇
  2023年   14篇
  2021年   16篇
  2020年   48篇
  2019年   65篇
  2018年   89篇
  2017年   104篇
  2016年   62篇
  2015年   70篇
  2014年   84篇
  2013年   572篇
  2012年   114篇
  2011年   92篇
  2010年   73篇
  2009年   56篇
  2008年   73篇
  2007年   72篇
  2006年   59篇
  2005年   52篇
  2004年   41篇
  2003年   24篇
  2002年   45篇
  2001年   56篇
  2000年   55篇
  1999年   46篇
  1998年   37篇
  1997年   38篇
  1996年   31篇
  1995年   33篇
  1994年   41篇
  1993年   35篇
  1992年   47篇
  1991年   47篇
  1990年   34篇
  1989年   33篇
  1988年   43篇
  1987年   19篇
  1986年   26篇
  1985年   38篇
  1984年   30篇
  1983年   40篇
  1982年   26篇
  1981年   23篇
  1980年   22篇
  1979年   23篇
  1978年   40篇
  1977年   20篇
  1976年   26篇
  1975年   24篇
  1974年   15篇
  1972年   14篇
排序方式: 共有2884条查询结果,搜索用时 12 毫秒
121.
The current study explored two possible comparison groups for the double Face‐to‐Face Still‐Face (FFSF) paradigm to evaluate their effects on infant behavior and different hypotheses about the nature of the Still‐Face (SF) effect, an effect not fully understood. Mothers and their 4‐month‐old infants were randomly assigned to one of three groups, a double FFSF group (GroupFFSF, n = 44), a control, semi‐structured play group (GroupStory, n = 46), or a control, unstructured play group (GroupPlay, n = 28). As hypothesized, GroupFFSF infants exhibited the classic SF response (decreased positive affect and gaze to mother; increased negative affect) and GroupPlay infants showed an increase in negative affect over episodes. Contrary to expectations, GroupStory infants displayed a similar, but less intense, pattern of behavior as GroupFFSF. Taken together, the findings indicate that multiple episodes of face‐to‐face play exceeded 4‐month‐olds' regulatory capacities and that infants are sensitive to shared communicative intentions and violations of social expectations, whether these violations are negative or positive in nature.  相似文献   
122.
The cross‐national intragenerational literature has often analyzed income mobility within short time periods over which mobility might reasonably be thought of as invariant. Here, we argue that a great social transformation—German reunification—abruptly and permanently altered mobility. Using standard measures (with panel data for the western states of Germany and the United States) over the period 1984–2006, we find the conventional result that income mobility is greater in Germany. But when we cut the data into 5‐year windows, we find that income mobility declines significantly over the years immediately following reunification in Germany but not in the United States, using both measures. (JEL J1, J6)  相似文献   
123.
In Russia, elder abuse is rarely discussed in the professional literature and the media. However, it is posited that parricide can be considered a form of elder abuse in Russia, as the line between elder abuse and parricide can be vague. Instances of parricide can appear trivial, hardly realized as such by victims and the social environment. Borderline cases can include involving older people in binge drinking, denying them help, and manipulating them to commit suicide. The perpetrators are often nonpsychotic, although sometimes exhibiting abnormal personality traits. Anger toward the victim can be absent on the part of the perpetrator, with their actions often driven by economic desires. A concluding point is that for better prevention of parricide and, therefore, elder abuse, it should not be considered only an unusual horrific crime committed by the mentally ill.  相似文献   
124.
Incorporating issues of race and racism can improve clinical engagement and the therapeutic alliance. Assessing, understanding, and responding to experiences related to racial identity and racism related stress can be an important factor in a clinician??s ability to be culturally responsive. A vignette of client treatment presents common dilemmas in clinical treatment. Responses to questions about race from focus groups are presented to frame the experiences of women of color who struggle with poverty and social-emotional issues. A framework of multicultural antiracist practice highlights the skills necessary for clinicians, supervisors, and managers.  相似文献   
125.
126.
This study aimed to perform an ergonomic analysis in a fiberglass parts factory. For this purpose, was used the methodology of Ergonomic Work Analysis (EWA). At the end of the study it was possible to identify some ways to the development of improvements in order to contribute to the transformation of working conditions in the sector analyzed.  相似文献   
127.
128.
Proper body support plays an import role in the recuperation of our body during sleep. Therefore, this study uses an automatically adapting bedding system that optimises spinal alignment throughout the night by altering the stiffness of eight comfort zones. The aim is to investigate the influence of such a dynamic sleep environment on objective and subjective sleep parameters. The bedding system contains 165 sensors that measure mattress indentation. It also includes eight actuators that control the comfort zones. Based on the measured mattress indentation, body movements and posture changes are detected. Control of spinal alignment is established by fitting personalized human models in the measured indentation. A total of 11 normal sleepers participated in this study. Sleep experiments were performed in a sleep laboratory where subjects slept three nights: a first night for adaptation, a reference night and an active support night (in counterbalanced order). Polysomnographic measurements were recorded during the nights, combined with questionnaires aiming at assessing subjective information. Subjective information on sleep quality, daytime quality and perceived number of awakenings shows significant improvements during the active support (ACS) night. Objective results showed a trend towards increased slow wave sleep. On the other hand, it was noticed that % N1-sleep was significantly increased during ACS night, while % N2-sleep was significantly decreased. No prolonged N1 periods were found during or immediately after steering.  相似文献   
129.
The ergonomic risks constitute a vital aspect of study and prevention for the worker's health, especially for people with different capacities. Very job has and implies certain type of risk for the worker's health, depending on the conditions it is done with the use of tools or without them. Aplicated techniques: posturogram, baropodometry, Schober test, biocinemátic chain test, Fukuda test, propioceptiva plataform in personnel with special capabilities.  相似文献   
130.
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