全文获取类型
收费全文 | 19676篇 |
免费 | 352篇 |
国内免费 | 1篇 |
专业分类
管理学 | 2825篇 |
民族学 | 69篇 |
人才学 | 1篇 |
人口学 | 1887篇 |
丛书文集 | 78篇 |
教育普及 | 2篇 |
理论方法论 | 1742篇 |
现状及发展 | 1篇 |
综合类 | 263篇 |
社会学 | 9507篇 |
统计学 | 3654篇 |
出版年
2021年 | 113篇 |
2020年 | 279篇 |
2019年 | 379篇 |
2018年 | 454篇 |
2017年 | 611篇 |
2016年 | 486篇 |
2015年 | 357篇 |
2014年 | 470篇 |
2013年 | 3089篇 |
2012年 | 650篇 |
2011年 | 625篇 |
2010年 | 454篇 |
2009年 | 374篇 |
2008年 | 455篇 |
2007年 | 471篇 |
2006年 | 470篇 |
2005年 | 447篇 |
2004年 | 407篇 |
2003年 | 385篇 |
2002年 | 428篇 |
2001年 | 530篇 |
2000年 | 538篇 |
1999年 | 473篇 |
1998年 | 346篇 |
1997年 | 314篇 |
1996年 | 331篇 |
1995年 | 305篇 |
1994年 | 286篇 |
1993年 | 290篇 |
1992年 | 346篇 |
1991年 | 318篇 |
1990年 | 288篇 |
1989年 | 294篇 |
1988年 | 289篇 |
1987年 | 255篇 |
1986年 | 247篇 |
1985年 | 280篇 |
1984年 | 271篇 |
1983年 | 252篇 |
1982年 | 219篇 |
1981年 | 187篇 |
1980年 | 169篇 |
1979年 | 199篇 |
1978年 | 182篇 |
1977年 | 161篇 |
1976年 | 134篇 |
1975年 | 160篇 |
1974年 | 118篇 |
1973年 | 117篇 |
1972年 | 93篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
Devine CM Maley M Farrell TJ Warren B Sadigov S Carroll J 《Evaluation and program planning》2012,35(1):88-96
Small Steps are Easier Together (SS) was a pilot environmental intervention in small rural worksites in Upstate New York in collaboration with Extension educators. Worksite leaders teamed with co-workers to select and implement environmental changes to increase walking steps over individual baseline and to choose healthy eating options over 10 weeks. Participants were 226 primarily white, women employees in 5 sites. A mixed methods process evaluation, conducted to identify determinants of intervention effectiveness and to explain differences in outcomes across worksites, included surveys, self-reports of walking and eating, interviews, focus groups, and an intervention log. The evaluation assessed reach, characteristics of recruited participants, dose delivered, dose received, and context and compared sites on walking and eating outcomes. Emergent elements of participant-reported dose received included: active leadership, visible environmental changes, critical mass of participants, public display of accomplishments, accountability to co-workers, and group decision making. Participants at sites with high reach and dose were significantly more likely than sites with low reach and dose to achieve intervention goals. Although this small pilot needs replication, these findings describe how these evaluation methods can be applied and analyzed in an environmental intervention and provide information on trends in the data. 相似文献
972.
Using geo-referenced data from the Panel Study of Income Dynamics, in conjunction with decennial census data, this research examines metropolitan-area variation in the ability of residentially mobile blacks, Hispanics, and whites to convert their income into two types of neighborhood outcomes-neighborhood racial composition and neighborhood socioeconomic status. For destination tract racial composition, we find strong and near-universal support for the "weak version" of place stratification theory; relative to whites, the effect of individual income on the percent of the destination tract population that is non-Hispanic white is stronger for blacks and Hispanics, but even the highest earning minority group members move to tracts that are "less white" than the tracts that the highest-earning whites move to. In contrast, for moves into neighborhoods characterized by higher levels of average family income, we find substantial heterogeneity across metropolitan areas in minorities' capacity to convert income into neighborhood quality. A slight majority of metropolitan areas evince support for the "strong version" of place stratification theory, in which blacks and Hispanics are less able than whites to convert income into neighborhood socioeconomic status. However, a nontrivial number of metropolitan areas also evince support for spatial assimilation theory, where the highest-earning minorities achieve neighborhood parity with the highest-earning whites. Several metropolitan-area characteristics, including residential segregation, racial and ethnic composition, immigrant population size, poverty rates, and municipal fragmentation, emerge as significant predictors of minority-white differences in neighborhood attainment. 相似文献
973.
Eye-tracking was used to investigate whether gaze direction would influence the visual scanning of faces, when presented in
the context of a full character, in different social settings, and with different task demands. Participants viewed individual
computer agents against either a blank background or a bar scene setting, during both a free-viewing task and an attractiveness
rating task for each character. Faces with a direct gaze were viewed longer than faces with an averted gaze regardless of
body context, social settings, and task demands. Additionally, participants evaluated characters with a direct gaze as more
attractive than characters with an averted gaze. These results, obtained with pictures of computer agents rather than real
people, suggest that direct gaze is a powerful attention grabbing stimulus that is robust to background context or task demands. 相似文献
974.
This review of controlled studies of marital and family therapy (MFT) in alcoholism treatment updates the earlier review by O'Farrell and Fals-Stewart (2003). We conclude that, when the alcoholic is unwilling to seek help, MFT is effective in helping the family cope better and motivating alcoholics to enter treatment. Specifically, both Al-Anon facilitation and referral and spouse coping skills training (based on new findings) help family members cope better, and CRAFT promotes treatment entry and was successfully transported to a community clinic in a new study. Once the alcoholic enters treatment, MFT, particularly behavioral couples therapy (BCT), is clearly more effective than individual treatment at increasing abstinence and improving relationship functioning. New BCT studies showed efficacy with women alcoholics and with gay and lesbian alcoholics, and BCT was successfully transported to a community clinic, a brief BCT version was tested, and BCT was adapted for family members other than spouses. Future studies should evaluate the following: MFT with couples where both members have a current alcohol problem and with minority patients, mechanisms of change, transportability of evidence-based MFT approaches to clinical practice settings, and replication of MFT outcomes of reduced partner violence and improved child functioning. 相似文献
975.
The overarching aim of this article is to review the research on relationship education programs and approaches that has been published or accepted for publication since the last review article in 2003. This article provides a critical overview of the relationship education field and sets an agenda for research and practice for the next decade. A theme weaved throughout the article is the ways in which relationship education is similar and different from couples therapy, and we conclude that there can be a synergistic, healthy marriage between the two. We then provide recommendations for future directions for research in the relationship education field. Finally, the coauthors comment on our experiences in both the relationship education field and the couples therapy field as both researchers and interventionists. 相似文献
976.
Jørgen Carling Marta Bivand Erdal Cindy Horst 《The International migration review》2012,46(2):283-309
This article examines how conflict in the country of origin interacts with other factors in shaping migrants’ remittance‐sending practices. Our data come from a survey of 10 immigrant groups in Norway and semi‐structured interviews with Somali and Pakistani remittance‐senders and receivers. First, we conduct an in‐depth comparison to explore the differences in how Somali and Pakistani migrants decide about remittance‐sending. Second, we use survey data on all 10 migrant groups to evaluate whether the differences that are not explained by socioeconomic characteristics, may partly reflect whether or not there is ongoing conflict in the country of origin. In our analyses we differentiate between (1) the effect of migrants’capacity to remit and their prioritizing of local and transnational expenditures, and (2) the impact of state collapse and absence of human security on migrants’ and refugees’desire to remit. We find that ongoing conflict in the country of origin exerts an upward pressure on remittance‐sending. 相似文献
977.
Farmers,trust, and the market solution to water pollution: The role of social embeddedness in water quality trading 总被引:1,自引:0,他引:1
Water quality trading (WQT) is a market arrangement in which a point-source water polluter pays farmers to implement conservation practices and claims the resulting benefits as credits toward meeting a pollution permit. Success rates of WQT programs nationwide are highly variable. Most of the literature on WQT is from an economic perspective emphasizing property rights, transaction costs, and the role of the price signal, but this institutional approach cannot fully account for the differential success rates between and within WQT programs. In this paper I turn to the role of social embeddedness and trust in helping explain these variable outcomes. Using interview data from all WQT programs nationwide I demonstrate that differential success rates between, and particularly within programs is largely determined by the presence or absence of a trusted local intermediary with relationships to the farming community. Trust helps WQT programs succeed because it makes information more credible to farmers, makes outreach to farmers more efficient, and buffers the risk that farmers may perceive in participating in the trading scheme. 相似文献
978.
Improving animal welfare is an important part of the development of the agricultural industry, particularly at a time when intensification and the encroachment of factory-style production systems is making the maintenance of human-animal relations increasingly difficult. Animal science deals with the issue of improving stockmanship by focusing on the relationships between attitudes and behaviour, under the premise that improved attitudes will lead to improved behaviour. From an analysis of 42 interviews with owners, sharemilkers and workers on dairy farms in New Zealand we present a different view, seeing behaviour instead as part of a self-reinforcing culture in which animals, humans and the physical structure all contribute to the development of farm specific ways of doing and being. We further suggest that changing one stockperson's attitude alone is insufficient to ensure a change in the culture as other actors – including animals and non-human actors – reinforce any existing culture that has developed, making both attitudinal and behavioural change difficult. We conclude by discussing the key importance of designing farm systems and structures that promote positive interactions between animals and humans and suggest that this, rather than simply promoting knowledge and attitudinal change, is likely to be the most effective way of maintaining stockmanship in the face of an industrialising agriculture. 相似文献
979.
This study investigated socio-economic impacts of land use change, giving explicit attention to the relationships between independently observed land use change and associated socio-economic changes, perceived land use change and socio-economic change, attributed cause of change, and experienced impacts of change. Using a case study region in south-east Australia, we examined the impacts of growth in use of land for dairy farming, cropping, blue gum plantations and rural residential development on (i) rural population trends, and (ii) the amount and nature of employment available in the study region. Perceptions and impacts of change were assessed using multiple qualitative and quantitative methods. Results demonstrate that local residents were not always aware of the extent and nature of land use change, and had difficulty attributing social changes and their impacts to the land use changes that underlie them. Furthermore, the felt impacts of land use change appeared dependent on a person's awareness of that change, and on their beliefs about the causes of social change. These findings highlight avenues for theoretical development to better specify the processes by which social change processes are experienced as human impacts. The findings also have implications for land use policy and social impact assessment, illustrating the importance of understanding both perceived and actual social change. 相似文献
980.
In one of only a few crisis communication research studies taking a relational approach, examining the effects of a company's prior reputation in publics’ responses to a given crisis situation, Lyons and Cameron (2004) found that both reputation and response profoundly affected publics’ attitude and behavioral intentions toward an organization involved in a crisis situation, using hypothetical, fictitious organizations and crises. Using actual organizations and crises, our research team designed a 2 (reputation: good vs. bad) × 2 (crisis response: apologetic vs. defensive) × 2 (CEO visibility in immediate crisis response: visible vs. invisible) within-subjects experiment (N = 102) to examine the variances in stakeholders’ attitudes and behavioral intentions toward a company after being exposed to online video that delivered a corporate crisis response. Findings were counter-intuitive: a defensive response to a crisis is as acceptable to crisis stakeholders as an apologetic response if the CEO is visible (or audible) in the response and if the pre-crisis company-stakeholder reputation is positive. Good reputation, defensive crisis response and CEO visibility in immediate response to a crisis resulted in the best stakeholder attitudes and purchase intentions. 相似文献