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   457篇
  免费   32篇
管理学   58篇
民族学   7篇
人口学   42篇
丛书文集   2篇
理论方法论   55篇
综合类   11篇
社会学   297篇
统计学   17篇
  2024年   1篇
  2023年   10篇
  2022年   7篇
  2021年   9篇
  2020年   17篇
  2019年   24篇
  2018年   32篇
  2017年   47篇
  2016年   30篇
  2015年   19篇
  2014年   23篇
  2013年   70篇
  2012年   27篇
  2011年   21篇
  2010年   20篇
  2009年   16篇
  2008年   19篇
  2007年   14篇
  2006年   11篇
  2005年   10篇
  2004年   12篇
  2003年   6篇
  2002年   13篇
  2001年   8篇
  2000年   2篇
  1999年   6篇
  1998年   1篇
  1997年   1篇
  1996年   1篇
  1994年   1篇
  1991年   4篇
  1990年   1篇
  1989年   2篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
排序方式: 共有489条查询结果,搜索用时 562 毫秒
181.
Objective. Sociologists of technology propose that not only a technological artifact, as such, but also patterns of usage should be considered when studying the social implications of technologies. Accordingly, we explore how people's online activities are influenced by users' socioeconomic status and context of use. Methods. We analyze data from the Allensbacher Computer and Technology Analysis (ACTA) 2004 survey with uniquely detailed information about people's Internet uses and context of usage to explore this relationship. Results. Findings suggest that high‐status and low‐status individuals cultivate different forms of “Internet‐in‐practice.” High‐status users are much more likely to engage in so‐called capital‐enhancing activities online than are their less privileged counterparts. Conclusion. Results suggest differential payoffs from Internet use depending on a user's socioeconomic background. Digital inequalities might be mitigated by improving people's Internet equipment and digital experience, but they do not account for all the status differential in use.  相似文献   
182.
In this paper, a regression semi-parametric model is considered where responses are assumed to be missing at random. From the empirical likelihood function defined based on the rank-based estimating equation, robust confidence intervals/regions of the true regression coefficient are derived. Monte Carlo simulation experiments show that the proposed approach provides more accurate confidence intervals/regions compared to its normal approximation counterpart under different model error structure. The approach is also compared with the least squares approach, and its superiority is shown whenever the error distribution in the simulation study is heavy tailed or contaminated. Finally, a real data example is given to illustrate our proposed method.  相似文献   
183.
184.
Through a survey of organizational stakeholders (N = 660), this study contributes to the understanding of nonprofit public relations in three key areas. First, a new five-factor scale to measure perceptions of the relationship cultivation strategies of stewardship was tested. Second, group differences between organization stakeholder types were explored. Third, a new working model that extends previous organization-public relationship (OPR) models to include variables of loyalty and behavioral intentions was advanced. Findings revealed theoretical, measurement, and practical applications.  相似文献   
185.
The potential indirect effect of observed maternal sensitivity at 5 months on the development of infants' behavioral regulation of emotion from 5 to 10 months (i.e., distraction and maternal‐orientation behaviors) via infant's vagal withdrawal was investigated (N = 230). Results indicated that maternal sensitivity at 5 months was not directly associated with behavioral regulation at 10 months. However, greater maternal sensitivity at 5 months was associated with greater vagal withdrawal at 10 months, after controlling for vagal withdrawal at 5 months. Further, vagal withdrawal at 10 months was associated with greater orientation toward the mother at 10 months, after controlling for 5‐month orientation behaviors. The indirect effect of maternal sensitivity on maternal‐orientation behaviors was significant, suggesting that infant's vagal withdrawal may be one potential mechanism through which maternal sensitivity is related to behavioral regulation.  相似文献   
186.
On the basis of three empirical studies Fitts' Law was refined for bivariate pointing tasks on large touch screens. In the first study different target width parameters were investigated. The second study considered the effect of the motion angle. Based on the results of the two studies a refined model for movement time in human-computer interaction was formulated. A third study, which is described here in detail, concerns the validation of the refined model. For the validation study 20 subjects had to execute a bivariate pointing task on a large touch screen. In the experimental task 250 rectangular target objects were displayed at a randomly chosen position on the screen covering a broad range of ID values (ID= [1.01; 4.88]). Compared to existing refinements of Fitts' Law, the new model shows highest predictive validity. A promising field of application of the model is the ergonomic design and evaluation of project management software. By using the refined model, software designers can calculate a priori the appropriate angular position and the size of buttons, menus or icons.  相似文献   
187.
This paper presents a mixed-method approach to measuring the functioning of Safe Schools/Healthy Students (SS/HS) Initiative partnerships. The SS/HS national evaluation team developed a survey to collect partners’ perceptions of functioning within SS/HS partnerships. Average partnership functioning scores were used to rank each site from lowest to highest. Sites with the most favorable perceptions of partnership functioning were defined as having average scores in the top 10% (n = 10) and sites with the least favorable perceptions of partnership functioning were defined as having average scores in the bottom 10% (n = 10). Qualitative data for these 20 sites were inductively open coded for emergent themes and analyzed for patterns using grounded theory approach. Six themes emerged that distinguished sites reporting the most favorable and least favorable perceptions of partnership functioning: partner engagement, facilitators, barriers, shared decision making, partnership structure, and sustainability. Sites reporting the most favorable perceptions of partnership functioning effectively utilized collaboration processes that facilitate coalition building, such as shared decision making, effective communication, and developing a clearly defined structure. Qualitative themes from this analysis provide evidence of validity for the partnership functioning scale used and illustrate distinguishing features between sites with the most favorable and least favorable perceptions of partnership functioning.  相似文献   
188.
Previous research indicates that men are affected when their female partners have breast cancer. However, little is known about what predicts men's psychological well-being in this context. The current investigation involved couples in which the woman had early stage breast cancer and explored the degree to which men's positive and negative well-being was related to women's well-being, women's physical symptoms, relationship functioning, and relationship duration. The findings indicate that all of these factors play a role and interact in predicting men's well-being. In particular, when women have a high level of physical symptoms, the typical associations between men's well-being with women's well-being and relationship adjustment no longer persist. Implications for working with couples addressing health problems are provided.  相似文献   
189.
We evaluated the effects of differential reinforcement and accurate verbal rules with feedback on the preference for choice and the verbal reports of 6 adults. Participants earned points on a probabilistic schedule by completing the terminal links of a concurrent-chains arrangement in a computer-based game of chance. In free-choice terminal links, participants selected 3 numbers from an 8-number array; in restricted-choice terminal links participants selected the order of 3 numbers preselected by a computer program. A pop-up box then informed the participants if the numbers they selected or ordered matched or did not match numbers generated by the computer but not displayed; matching in a trial resulted in one point earned. In baseline sessions, schedules of reinforcement were equal across free- and restricted-choice arrangements and a running tally of points earned was shown each trial. The effects of differentially reinforcing restricted-choice selections were evaluated using a reversal design. For 4 participants, the effects of providing a running tally of points won by arrangement and verbal rules regarding the schedule of reinforcement were also evaluated using a nonconcurrent multiple-baseline-across-participants design. Results varied across participants but generally demonstrated that (a) preference for choice corresponded more closely to verbal reports of the odds of winning than to reinforcement schedules, (b) rules and feedback were correlated with more accurate verbal reports, and (c) preference for choice corresponded more highly to the relative number of reinforcements obtained across free- and restricted-choice arrangements in a session than to the obtained probability of reinforcement or to verbal reports of the odds of winning.  相似文献   
190.
The present study explored the experiences of parents of children with Down syndrome at different phases of the life span. Using a mixed‐method design, the current study included 445 participants who were divided into 4 groups based on the age of the child: (a) parents of children under 5 years of age (early childhood), (b) parents of children between 5 and 11 years of age (middle childhood), (c) parents of children between 12 and 18 years of age (adolescence), and (d) parents of children over the age of 18 (chronological adults). Parents reported higher coping strategy scores during the middle childhood and adolescent years than early childhood or later years (adult children). Qualitative data identified key areas that parents across the 4 groups reported, including acceptance of the diagnosis, having a positive attitude, their child's developmental level, and other internal and external factors that contribute to their attitudes and coping.  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