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   291篇
  免费   4篇
管理学   64篇
人口学   22篇
理论方法论   25篇
综合类   4篇
社会学   137篇
统计学   43篇
  2023年   2篇
  2021年   2篇
  2020年   4篇
  2019年   6篇
  2018年   8篇
  2017年   7篇
  2016年   4篇
  2015年   2篇
  2014年   6篇
  2013年   60篇
  2012年   9篇
  2011年   11篇
  2010年   3篇
  2009年   8篇
  2008年   8篇
  2007年   9篇
  2006年   13篇
  2005年   9篇
  2004年   11篇
  2003年   7篇
  2002年   5篇
  2001年   8篇
  2000年   5篇
  1999年   12篇
  1998年   2篇
  1997年   2篇
  1996年   5篇
  1995年   3篇
  1994年   2篇
  1993年   4篇
  1992年   4篇
  1991年   5篇
  1990年   4篇
  1989年   3篇
  1987年   3篇
  1986年   3篇
  1985年   3篇
  1984年   5篇
  1983年   4篇
  1981年   3篇
  1980年   3篇
  1979年   1篇
  1978年   3篇
  1977年   3篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   2篇
  1971年   2篇
  1970年   1篇
排序方式: 共有295条查询结果,搜索用时 46 毫秒
61.
This research examined the relationship between organizational design and leadership in decision-making teams. It used a grounded theory-based qualitative research design. The validity of the research was enhanced by data triangulation, wherein quantitative psychometric data augmented the qualitative data that are traditionally used. The research was based upon two organizations within the substantive setting of the knowledge industry. The higher order category of consensual commitment explained effective decision-making. At the meso-level of leadership modeling, organizational design influenced both leadership style and decision-making. Specifically, an organizational design that generated lateral job roles and a relational leadership orientation was found to enhance consensual commitment, and provided a level of assurance against dysfunctional team dynamics.  相似文献   
62.
Parental Speech at 6 Months Predicts Joint Attention at 12 Months   总被引:1,自引:0,他引:1  
In a prospective longitudinal study of a representative community sample (N = 264), mothers' references to infants' mental states were coded during a topic‐sharing task in the home at 6 months. Joint attention behaviour was assessed in the laboratory at 12 months. Individual joint attention skills (gaze following, gaze alternating, and declarative pointing) were significantly inter‐correlated, with a single factor accounting for 68% of the variance. Mothers' references to infants' mental states at 6 months predicted infants' joint attention at 12 months. The association was not explained by sociodemographic characteristics of the family, the mother's mental state, or by the quantity or acoustic properties of her speech. However, variability in pitch of maternal speech was an independent predictor of the infants' later joint attention skills. Taken together, these findings suggest that mothers' infant‐directed speech fosters infants' attentive participation in topic‐sharing interactions, which in turn provide an important arena in which joint attention skills develop over the first year of life.  相似文献   
63.
Child sexual abuse poses a serious threat to public health and is often unreported, unrecognized, and untreated. Prevention, early recognition, and treatment are critically important to reduce long-term effects. Little data are available on effective methods of preventing child sexual abuse. The current research demonstrates a unique approach to promoting awareness and stimulating discussion about child sexual abuse. Qualitative methods have rarely been used to study child sexual abuse prevention. Qualitative inductive analyses of interviews from 20 key informants identified both positive and negative assessments with six emergent themes. The themes revealed inherent tensions in using narrative accounts to represent the complex cultural context within which child sexual abuse occurs. More research is needed, but the program shows potential as a methodology to raise awareness of child sexual abuse.  相似文献   
64.
Urban development either eliminates, or severely fragments, native vegetation, and therefore alters the distribution and abundance of species that depend on it for habitat. We assessed the impact of urban development on bird communities at 121 sites in and around Perth, Western Australia. Based on data from community surveys, at least 83 % of 65 landbirds were found to be dependent, in some way, on the presence of native vegetation. For three groups of species defined by specific patterns of habitat use (bushland birds), there were sufficient data to show that species occurrences declined as the landscape changed from variegated to fragmented to relictual, according to the percentage of vegetation cover remaining. For three other groups (urban birds) species occurrences were either unrelated to the amount of vegetation cover, or increased as vegetation cover declined. In order to maximise the chances of retaining avian diversity when planning for broad-scale changes in land-use (i.e. clearing native vegetation for housing or industrial development), land planners should aim for a mosaic of variegated urban landscapes (>60 % vegetation retention) set amongst the fragmented and relictual urban landscapes (<60 % vegetation retention) that are characteristic of most cities and their suburbs. Management actions for conserving remnant biota within fragmented urban landscapes should concentrate on maintaining the integrity and quality of remnant native vegetation, and aim at building awareness among the general public of the conservation value of remnant native vegetation.  相似文献   
65.
In our study we used a two-step cluster analytic approach to identify personality typologies for conservative Christians seen in intensive marital therapy (N = 207). Sixteen Personality Factor Fifth Edition results revealed significant personality differences based on gender as well as five significantly different personality clusters: (1) abstract, deferential, trusting, and tolerates disorder; (2) reactive and deferential; (3) reserved, abstract, serious, grounded, traditional, and self-reliant; (4) grounded; and (5) socially bold, abstracted, forthright, and open to change. Conclusions are drawn related to how these results compare with other personality studies in the literature and how these differing personality types might fit together in Christian marriage dyads.  相似文献   
66.
Abstract

While the employment rate of women has risen steadily in New Zealand over the last two decades, employment is still highly variable by ethnicity and age. One of the groups least engaged in paid employment is young Māori women (15–24 years). Their employment rates are much lower than their Pākehā counterparts (42 and 64%, respectively) and this is not offset by their greater involvement in education.

Although there is a general awareness of these differences, there has been no systematic enquiry into the possible reasons for the relatively low engagement of young Māori women in the formal economy. Using a full set of 178,776 unit records pertaining to all young Māori and Pākehā women from the 2001 Census of Population and Dwellings, we develop a number of novel measures of household composition as indicators of domestic responsibilities. These become arguments in a multivariate statistical model in which young women are modelled as choosing to participate in the formal paid workforce and/ or in education.

Our results show that young Māori women's choice of paid work is no more sensitive to her domestic responsibilities than those of young Pākehā women, but they do encounter these responsibilities far more often. The results have a number of important implications for Māori development.  相似文献   
67.
Abstract

Analysis of the literature and examination of the various models of integration and testing in the field, have revealed five key issues relating to management system integration. This paper examines the recently published ISO 9001 : 2000 quality management system standard to see how it addresses these issues, under the headings of compatibility, scope and organizational culture. The examination reveals that while compatibility with the ISO 14001 and OHSAS 18001 standards has been improved in some areas, a different approach and model of a management system has been used. The paper suggests that differences in the scope of the standards are also likely to give rise to different sub-cultures which will hinder integration, and scope and culture are more important than compatibility. This leads the authors to conclude that new models of integration should be based on an approach and definitions which can be used in any management system, as well as an integrated one. Models of an integrated management system should also emphasize the need for no significant differences in the scope of the integrated systems, and a strong culture which supports the main requirements of TQM.  相似文献   
68.
This paper addresses the questions of market penetration and locational conflict in a franchise system of distribution. The models developed provide a means to evaluate alternative scenarios and the effects of various franchise policies. It is shown that the market penetration and location goals of the members of a franchise system coincide only under a very limited set of circumstances.  相似文献   
69.
Dale Hattis 《Risk analysis》1990,10(2):303-316
Neither experimental animal exposures nor real-life human exposures are delivered at a constant level over a full lifetime. Although there are strong theoretical reasons why all pharmacokinetic processes must "go linear" at the limit of low dose rates, fluctuations in dose rate may produce nonlinearities that either increase or decrease actual risks relative to what would be expected for constant lifetime exposure. This paper discusses quantitative theory and specific examples for a number of processes that can be expected to give rise to pharmacokinetic nonlinearities at high dose rates–including transport processes (e.g., renal tubular secretion), activating and detoxifying metabolism, DNA repair, and enhancement of cell replication following gross toxicity in target tissues. At the extreme, full saturation of a detoxification or DNA repair process has the potential to create as much as a dose2 dependence of risk on dose delivered in a single burst, and if more than one detoxification step becomes fully saturated, this can be compounded. Effects via changes in cell replication rates, which appear likely to be largely responsible for the steep upward turning curve of formaldehyde carcinogenesis in rats, can be even more profound over a relatively narrow range of dosage. General suggestions are made for experimental methods to detect nonlinearities arising from the various sources in premarket screening programs.  相似文献   
70.
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