全文获取类型
收费全文 | 4556篇 |
免费 | 2316篇 |
国内免费 | 2篇 |
出版年
2024年 | 7篇 |
2023年 | 48篇 |
2022年 | 24篇 |
2021年 | 195篇 |
2020年 | 297篇 |
2019年 | 719篇 |
2018年 | 575篇 |
2017年 | 642篇 |
2016年 | 585篇 |
2015年 | 528篇 |
2014年 | 444篇 |
2013年 | 845篇 |
2012年 | 280篇 |
2011年 | 252篇 |
2010年 | 198篇 |
2009年 | 171篇 |
2008年 | 118篇 |
2007年 | 145篇 |
2006年 | 142篇 |
2005年 | 114篇 |
2004年 | 87篇 |
2003年 | 93篇 |
2002年 | 80篇 |
2001年 | 90篇 |
2000年 | 67篇 |
1999年 | 36篇 |
1998年 | 8篇 |
1997年 | 8篇 |
1996年 | 4篇 |
1995年 | 12篇 |
1994年 | 4篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1990年 | 1篇 |
1985年 | 5篇 |
1984年 | 13篇 |
1983年 | 2篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1980年 | 7篇 |
1979年 | 5篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1974年 | 1篇 |
1973年 | 1篇 |
排序方式: 共有6874条查询结果,搜索用时 46 毫秒
941.
基于阶层线性理论的多层级中介效应 总被引:1,自引:0,他引:1
本文介绍了三种常见的多层级中介效应模型, 并根据阶层线性理论和依次检验回归系数的方法, 详述了多层级中介效应的检验步骤以及中介效应量的估计方法, 在2-1-1和1-1-1中介效应模型中, 推荐采用对层1自变量按组均值中心化, 同时将组均值置于层2截距方程式的中心化方法, 以实现组间和组内中介效应的有效分离。本文还展望了多层级中介效应模型的拓展方向, 即多层级调节性中介模型和多层级结构方程模型; 以及检验方法的拓展, 即Sobel检验和置信区间检验。 相似文献
942.
This paper introduces a method for finding the non‐dominated set in criterion space of an MOLP problem based on Fourier–Motzkin Elimination. The method incorporates a procedure that eliminates decision variables from constraints and transforms a feasible region from decision space to criterion space. While avoiding characterization of the efficient set in decision space, it finds the non‐dominated set in criterion space. After the decision maker's most preferred criterion vector has been identified, the corresponding efficient solutions can be found by backward substitution. The method was implemented in MATLAB using a tabular form and computational experiments were conducted. The results indicate that although the method performs well for relatively small problems, it can be computationally intensive for larger problems. Nonetheless, the method is intuitively appealing and it provides useful insights into the geometry and theory of MOLP. As such it makes it a valuable educational tool for students of multi‐criteria decision analysis. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
943.
Jeffrey M. Keisler 《Journal of Multi-Criteria Decision Analysis》2002,11(6):315-326
An intermediate step is introduced to the dialogue decision process for decision analysis. Alternatives are refined after they have been generated within a strategy table but before they are subject to more detailed evaluation. Two or more judges create a subjective mapping from alternatives to attributes that will later be mapped to criteria. In strategy tables, each of the alternative strategies consists of a coherent set of choices made across several decisions that are to be coordinated. These strategic alternatives are modified so as to increase their differentiation in the attribute space, rather than in the decision space alone. When criteria weights are unknown, the best alternative from the modified set may be superior to the best alternative from the original set. Furthermore, analysis of the resulting alternatives may yield a better mapping of the value response surface for the action space, in the sense that this mapping leads to eventual construction of a higher value alternative. Results are reported for a consulting engagement incorporating the proposed step. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
944.
Kerstin Palmrus 《Infant and child development》1999,8(3):155-171
Swedish mothers and fathers from 200 volunteer families (target child aged 1–6 years) were asked what they would do in five situations which called for either control or discipline. The Parental Discipline Interview (PDI) was scored for 18 possible responses. Both mothers and fathers reported a variety of discipline strategies. Firm Command and Redefine were reported most often, while Threat and Physical Punishment were reported least often. Analysis of Variance (ANOVAs) showed higher frequencies of Reasoning and Ignore and lower frequencies of Redefine for mothers than for fathers. Regression analyses showed that mothers that had less traditional attitudes and young children predicted the preference of Physical Restraint, as well as Distraction. Ignore was predicted for older, less active children of less educated mothers. Fathers having younger, less active daughters predicted the preference of Redefine. Even if parents do not have Physical Punishment at their disposal following the ‘aga‐law’, the results showed that they have not abdicated their parental authority. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
945.
Hannah Papenfuss 《Dialog》2019,58(3):173-174
In this solicited essay, an undergraduate Interfaith Scholar and Interfaith Studies minor at Concordia College responds to the ELCA proposed interreligious policy statement. In this essay, I will contend that the policy statement beautifully articulates our Lutheran commitment to accompany our neighbors by envisioning a world in which God celebrates all forms of diversity. Moreover, by framing our vocation in the context of relational theology, the document lays the groundwork for mutual understanding that prioritizes service to the neighbor over proselytization. 相似文献
946.
Christel Devue 《British journal of psychology (London, England : 1953)》2019,110(3):483-485
In this commentary, I will expand on three aspects suggested by Ramon et al. (2019, British Journal of Psychology, 110, 461) to improve the predictive value of laboratory‐based tasks in real‐world applications. There are potential benefits that may arise from three interrelated considerations, particularly in terms of predicting agents’ susceptibility to errors in operational settings. The first is a proposal to conduct a detailed examination of performance on face processing tests rather than only analysing overall accuracy scores. The second involves considering non‐face‐related cognitive and meta‐cognitive sub‐processes involved in face processing tasks. The third highlights the contribution of superior recognisers in creating challenging tests that simulate difficult real‐world situations. 相似文献
947.
Simone Sinn 《Dialog》2019,58(3):191-196
The ELCA Declaration of Inter‐Religious Commitment is an important instrument for mainstreaming inter‐religious engagement in local communities and diverse ministries. This article assesses this recent policy document and highlights how the text engages Lutheran theological reasoning on “the neighbor” for a profound understanding of God's grace, theologically de‐legitimizes hostility and exclusion, and strengthens joint agency. This resonates with current concerns in the global Lutheran communion and the wider ecumenical movement. 相似文献
948.
Many see old age as asexual but studies show that significant numbers of people 65 years old and older continue to desire and engage in acts of sexual intimacy as seem in long‐term care facilities and in cohabitation. Sexual ethics in the context of aging requires respect for the sexuality of older adults and sensitivity to their needs and challenges. 相似文献
949.
950.
Todd M. Jensen 《Family process》2019,58(2):384-403
Stepfamilies are an increasingly common family form, many of which are headed by a resident mother and stepfather. Stepfather–child relationships exert notable influence on stepfamily stability and individual well‐being. Although various stepfather roles have been observed, more research is warranted by which stepfather–child interactions are explored holistically and across a variety of life domains (e.g., recreational, personal, academic, and disciplinary). Thus, the primary purpose of the current study is to explore varying interactional patterns between youth and their stepfathers. A latent class analysis is conducted using a representative sample of 1,183 youth (53% female; mean age = 15.64 years, SD = 1.70 years; 62% non‐Hispanic White) residing in mother–stepfather families from Wave I of the National Longitudinal Study of Adolescent to Adult Health. Latent‐class enumeration processes support a four‐class solution, with latent classes representing inactive, academically oriented, casually connected, and versatile and involved patterns of youth–stepparent interaction. Notable differences and similarities are evident across patterns with respect to family relationship quality, youth well‐being, and socio‐demographic characteristics. Differences are most stark between the inactive and versatile and involved patterns. Ultimately, the results showcase notable variation in youth–stepparent interactional patterns, and one size does not necessarily fit all stepfamilies. Family practitioners should be mindful of variation in youth–stepparent interactional patterns and assist stepfamilies in seeking out stepparent–child dynamics that are most compatible with the needs and dynamics of the larger family system. 相似文献