全文获取类型
收费全文 | 11904篇 |
免费 | 1341篇 |
国内免费 | 122篇 |
专业分类
管理学 | 3837篇 |
民族学 | 21篇 |
人才学 | 1篇 |
人口学 | 156篇 |
丛书文集 | 346篇 |
理论方法论 | 1239篇 |
综合类 | 3542篇 |
社会学 | 2188篇 |
统计学 | 2037篇 |
出版年
2024年 | 16篇 |
2023年 | 135篇 |
2022年 | 114篇 |
2021年 | 209篇 |
2020年 | 433篇 |
2019年 | 579篇 |
2018年 | 443篇 |
2017年 | 620篇 |
2016年 | 618篇 |
2015年 | 622篇 |
2014年 | 792篇 |
2013年 | 1347篇 |
2012年 | 843篇 |
2011年 | 739篇 |
2010年 | 656篇 |
2009年 | 542篇 |
2008年 | 597篇 |
2007年 | 516篇 |
2006年 | 546篇 |
2005年 | 503篇 |
2004年 | 436篇 |
2003年 | 364篇 |
2002年 | 321篇 |
2001年 | 311篇 |
2000年 | 203篇 |
1999年 | 126篇 |
1998年 | 73篇 |
1997年 | 61篇 |
1996年 | 64篇 |
1995年 | 46篇 |
1994年 | 64篇 |
1993年 | 46篇 |
1992年 | 35篇 |
1991年 | 33篇 |
1990年 | 40篇 |
1989年 | 29篇 |
1988年 | 38篇 |
1987年 | 23篇 |
1986年 | 20篇 |
1985年 | 30篇 |
1984年 | 32篇 |
1983年 | 23篇 |
1982年 | 24篇 |
1981年 | 24篇 |
1980年 | 8篇 |
1979年 | 13篇 |
1978年 | 8篇 |
1977年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
施婉蓉 《淮海工学院学报(社会科学版)》2015,(2)
随着房地产调控和城市化进程的加快,商业地产越来越受到开发商的青睐。城市综合体作为商业地产的典型代表以其多结构多层级的功能组合迅速提升区域价值而拥有了“城中之城”的美誉,在东部地区二三线城市大量涌现。但城市综合体带动城市发展的同时,也引发了一系列风险亟待关注。 相似文献
12.
Bioequivalence (BE) studies are designed to show that two formulations of one drug are equivalent and they play an important role in drug development. When in a design stage, it is possible that there is a high degree of uncertainty on variability of the formulations and the actual performance of the test versus reference formulation. Therefore, an interim look may be desirable to stop the study if there is no chance of claiming BE at the end (futility), or claim BE if evidence is sufficient (efficacy), or adjust the sample size. Sequential design approaches specially for BE studies have been proposed previously in publications. We applied modification to the existing methods focusing on simplified multiplicity adjustment and futility stopping. We name our method modified sequential design for BE studies (MSDBE). Simulation results demonstrate comparable performance between MSDBE and the original published methods while MSDBE offers more transparency and better applicability. The R package MSDBE is available at https://sites.google.com/site/modsdbe/ . Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
13.
《Social Development》2018,27(3):495-509
Parents' reactions to children's emotions shape their psychosocial outcomes. Extant research on emotion socialization primarily uses variable‐centered approaches. This study explores family patterns of maternal and paternal responses to children's sadness in relation to psychosocial outcomes in middle childhood. Fifty‐one families with 8‐ to 12‐year‐old children participated. Mothers and fathers reported their reactions to children's sadness and children's social competence and psychological adjustment. Cluster analyses revealed three family patterns: Supportive (high supportive and low non‐supportive reactions from both parents), Not Supportive (low supportive reactions from both parents), and Father Dominant (high paternal supportive and non‐supportive reactions, low maternal supportive and non‐supportive reactions). Supportive families had children with higher social competence and more internalizing symptoms whereas Father Dominant families had children with lower social competence and fewer internalizing symptoms. Not Supportive families had children with average social competence and fewer internalizing symptoms. Findings are discussed in relation to the “divergence model” which proposes that a diverse range of parental responses to children's sadness, rather than a uniformly supportive approach, may facilitate children's psychosocial adjustment. 相似文献
14.
《Development policy review : the journal of the Overseas Development Institute》2018,36(Z2):O831-O856
While migration has been found to enhance welfare across a range of settings, most of the literature focuses on rural‐to‐urban migrant flows. Using a unique dataset from north‐western Tanzania, this article probes an important, yet overlooked, link between land markets and rural‐to‐rural migration. A mixed‐methods approach is used to discern how these two forces are intertwined in village life. Results indicate that household decisions to migrate are particularly influenced by the ease of market‐based land access in their new communities. This suggests that labour mobility may be facilitated through the development of a well‐functioning land market. 相似文献
15.
Valarie King 《Journal of marriage and the family》2002,64(3):642-656
It has been proposed that recent increases in parental divorce have inhibited the development of trust among offspring. This proposition is tested by examining whether parental divorce is associated with offspring trust in parents, intimate partners, and others. Data come from the Marital Instability Over the Life Course Study. Results reveal that although parental divorce is negatively associated with trust, these effects largely disappear once the quality of the past parent‐teen relationship is taken into account. The one exception is trust in fathers where children of divorce remain at higher risk of mistrust. Trust in parents, intimates, and others is strongly linked to positive parent‐teen relationships regardless of parental divorce. Contemporary relationship experiences also influence trusting intimates and others. 相似文献
16.
Politics and Scientific Expertise: Scientists, Risk Perception, and Nuclear Waste Policy 总被引:2,自引:0,他引:2
To study the homogeneity and influences on scientists'perspectives of environmental risks, we have examined similarities and differences in risk perceptions, particularly regarding nuclear wastes, and policy preferences among 1011 scientists and engineers. We found significant differences ( p 0.05)in the patterns of beliefs among scientists from different fields of research. In contrast to physicists, chemists, and engineers, life scientists tend to: (a)perceive the greatest risks from nuclear energy and nuclear waste management; (b)perceive higher levels of overall environmental risk; (c)strongly oppose imposing risks on unconsenting individuals; and (d)prefer stronger requirements for environmental management. On some issues related to priorities among public problems and calls for government action, there are significant variations among life scientists or physical scientists. We also found that–independently of field of research–perceptions of risk and its correlates are significantly associated with the type of institution in which the scientist is employed. Scientists in universities or state and local governments tend to see the risks of nuclear energy and wastes as greater than scientists who work as business consultants, for federal organizations, or for private research laboratories. Significant differences also are found in priority given to environmental risks, the perceived proximity of environmental disaster, willingness to impose risks on an unconsenting population, and the necessity of accepting risks and sacrifices. 相似文献
17.
Jon M. Patterson 《Journal of marriage and the family》2002,64(2):349-360
The construct, family resilience, has been defined and applied very differently by those who are primarily clinical practitioners and those who are primarily researchers in the family field. In thisarticle, the family resilience perspective is integrated with conceptual definitions from family stress theory using the Family Adjustment and Adaptation Response (FAAR) Model in an effort to clarify distinctions between family resiliency as capacity and family resilience as a process. The family resilience process is discussed in terms of (a) the meaning of significant risk exposure (vs. the normal challenges of family life) and (b) the importance of making conceptual and operational distinctions between family system outcomes and family protective processes. Recommendations for future family resilience research are discussed. 相似文献
18.
语言·命运·历史——论吉本《苏格兰的书》 总被引:1,自引:0,他引:1
高继海 《郑州大学学报(哲学社会科学版)》2002,35(6):43-46
苏格兰小说家吉本最著名的作品是其三部曲《苏格兰的书》。这部小说在语言的运用上独具特色 ,对女主人公命运的关注显示出这位男性作家超前的女性主义意识。而小说的叙述结构所蕴含的历史观则是进步和乐观的 相似文献
19.
波特竞争模型将市场竞争看成一种零和博弈,但是,近年来,合作越来越受到企业的认可,合作带来的收益远大于竞争所带来的收益。本文将合作因素引入波特竞争模型,解释了企业间的合作现象,同时对合作所引起的收益与风险进行了探讨,指出我国企业参与国际竞争必须走合作之路。 相似文献
20.
周谷云 《宁波大学学报(人文科学版)》2002,15(1):125-127
加入WTO,北仑工业经济要上新台阶,就必须敏锐地把握经济发展趋势,以培育支柱工业和临港工业,招商引资和技术改造,拓展国际、国内市场,深化企业改革为重点. 相似文献