全文获取类型
收费全文 | 4867篇 |
免费 | 875篇 |
国内免费 | 32篇 |
专业分类
管理学 | 892篇 |
劳动科学 | 1篇 |
民族学 | 27篇 |
人口学 | 147篇 |
丛书文集 | 191篇 |
理论方法论 | 761篇 |
综合类 | 1108篇 |
社会学 | 2149篇 |
统计学 | 498篇 |
出版年
2024年 | 5篇 |
2023年 | 16篇 |
2022年 | 35篇 |
2021年 | 148篇 |
2020年 | 206篇 |
2019年 | 349篇 |
2018年 | 198篇 |
2017年 | 307篇 |
2016年 | 323篇 |
2015年 | 344篇 |
2014年 | 336篇 |
2013年 | 575篇 |
2012年 | 325篇 |
2011年 | 303篇 |
2010年 | 322篇 |
2009年 | 246篇 |
2008年 | 286篇 |
2007年 | 233篇 |
2006年 | 231篇 |
2005年 | 189篇 |
2004年 | 161篇 |
2003年 | 138篇 |
2002年 | 130篇 |
2001年 | 109篇 |
2000年 | 87篇 |
1999年 | 27篇 |
1998年 | 8篇 |
1997年 | 11篇 |
1996年 | 12篇 |
1995年 | 9篇 |
1994年 | 12篇 |
1993年 | 16篇 |
1992年 | 9篇 |
1991年 | 8篇 |
1990年 | 3篇 |
1989年 | 9篇 |
1988年 | 8篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 7篇 |
1984年 | 3篇 |
1983年 | 2篇 |
1981年 | 3篇 |
1978年 | 6篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1971年 | 3篇 |
1969年 | 2篇 |
1966年 | 2篇 |
1965年 | 1篇 |
排序方式: 共有5774条查询结果,搜索用时 40 毫秒
91.
Caroline K. Pemberton Roben Anneliese J. Bass Ginger A. Moore Laura Murray‐Kolb Patricia Z. Tan Rick O. Gilmore Kristin A. Buss Pamela M. Cole Laureen O. Teti 《Infancy》2012,17(5):558-577
Infants’ emerging ability to move independently by crawling is associated with changes in multiple domains, including an increase in expressions of anger in situations that block infants’ goals, but it is unknown whether increased anger is specifically because of experience with being able to move autonomously or simply related to age. To examine the influence of locomotion on developmental change in anger, infants’ (N = 20) anger expressions during an arm restraint procedure were observed longitudinally at a precrawling baseline assessment and 2 and 6 weeks after the onset of crawling. Infant age at each crawling stage was unrelated to the frequency of anger expressed in response to arm restraint. At 6 weeks postcrawling onset, infants whose mothers rated them as temperamentally higher in distress to limitations, compared with those rated lower, showed a greater increase in the frequency of anger expressed during the arm restraint relative to earlier assessments and took longer to reduce the frequency of anger expressed when no longer restrained. Findings suggest that experience with autonomous crawling has an effect on anger expression, independent of age, and that a temperamental tendency to become distressed by limitations may exacerbate the effect of crawling on anger expression. 相似文献
92.
Heather T. Rowan‐Kenyon Amy K. Swan Marie F. Creager 《The Career development quarterly》2012,60(1):2-15
The authors examined the central hypothesis that students’ early perceptions of support and sense of engagement in math classes and math activities strongly influence the broadening or narrowing of their math interest. The focus was on the first wave of qualitative data collected from 5th‐, 7th‐, and 9th‐grade students during the 2007–2008 academic year as part of a longitudinal study. Findings indicate the importance of using group work and extrinsic motivation in middle school math classes to broaden interest; peer classroom behavior was often a detractor of math interest. 相似文献
93.
We investigated the emergence in infancy of a preference to imitate individuals who display confidence over lack of confidence. Eighteen‐ and 24‐month‐olds (N = 70) were presented with an experimenter who demonstrated the use of several objects accompanied by either nonverbal expressions of confidence or lack of confidence. At 24 months, infants were more likely to imitate the actions when demonstrated by a confident experimenter than by an unconfident experimenter; 18‐month‐olds showed no such preference. The experimenter then presented an additional imitation trial and a word‐learning trial while displaying a neutral expression. Twenty‐four‐month‐olds persisted in preferentially imitating a previously confident experimenter, but prior confidence had no effect on their word learning. These findings demonstrate a developmental increase in infants’ use of confidence cues toward the end of the second year of life. 相似文献
94.
高校图书馆联合虚拟参考咨询服务是一种全新的信息服务形式,深受广大用户的喜爱和欢迎。该文通过对江西省昌北高校图书馆联盟2011年1至6月份虚拟参考咨询的服务人员、服务形式、服务内容、服务效率及存在问题进行调查分析研究,提出提升该联盟虚拟参考咨询服务质量的积极建议及对策。 相似文献
95.
Lars Engberg‐Pedersen 《Development policy review : the journal of the Overseas Development Institute》2014,32(1):113-131
In 2003, the Danish Ministry of Foreign Affairs undertook a decentralisation of the management of bilateral aid to the embassies in major partner countries. However, while decentralisation appears to live up to the principles of the Paris Declaration on Aid Effectiveness, the specific delegation of responsibilities as well as the political context of aid management may jeopardise the intended contribution to effective development co‐operation. This article explores some factors potentially limiting the usefulness of decentralised aid management in the Danish case, and discusses certain intra‐organisational dynamics and extra‐organisational pressures influencing ‘donor effectiveness’. 相似文献
96.
97.
Marie‐Pier Vaillancourt‐Morel Natacha Godbout Stéphane Sabourin John Briere Yvan Lussier Marsha Runtz 《Journal of marital and family therapy》2016,42(2):341-356
This study tested a moderation model in which the association between child sexual abuse severity and negative sexual outcomes (i.e., sexual avoidance and compulsivity) differed as a function of relationships status (i.e., single, cohabiting, and married individuals). A sample of 1,033 adults completed self‐report questionnaires online, and 21.5% reported childhood sexual abuse. Path analyses indicated that child sexual abuse severity was associated with higher sexual compulsivity in single individuals, both higher sexual avoidance and compulsivity in cohabiting individuals, and higher sexual avoidance in married individuals. The moderation model was invariant across men and women. These results suggest that the time course of negative sexual outcomes associated with child sexual abuse may follow distinct patterns of expression according to relationship status. 相似文献
98.
“Phil's Calling Grandma… ”: The Role of External Support in Human–Companion Animal Identity Pairings 下载免费PDF全文
Andrea Laurent‐Simpson 《Symbolic Interaction》2017,40(2):212-228
This exploratory paper deals with human–animal role identity pairings such as parent–child or sibling–sibling and the necessity of support from other actors both for the formation of these idiosyncratic identities, as well as for their situational placement in social environments not limited to the nonhuman animal. Taken from a qualitative study examining identity formation counter to the nonhuman animal, I use in‐depth interviews of both people with and without human children to demonstrate how human‐to‐human relationships are formed by categorizing the companion animal as a “child” of sorts within the family structure. These relationships prove integral to the continued development and enactment of identities such as the animal “parent” or the animal “sibling” via three different groups: their own parents, partners, and, in one case, adult siblings. This creates positive affect and commitment to the identity across other social situations. Implications of these findings for identity theory and family research are discussed. 相似文献
99.
100.
Marwan Diab Raija‐Leena Punamäki Esa Palosaari Samir R. Qouta 《Social Development》2014,23(2):215-231
Social resources are considered important protectors in traumatic conditions, but few studies have analyzed their role in psychosocial interventions among war‐affected children. We examined (1) whether a psychosocial intervention (teaching recovery techniques, TRT) is effective in improving peer and sibling relations, and (2) whether these potentially improved relations mediate the intervention's impacts on children's mental health. Participants were 428 Palestinian children [10–13 (mean = 11.29, standard deviation SD = .68)‐year‐old girls (49.4 percent) and boys (50.6 percent)], who were cluster‐randomized into the TRT and wait‐list control groups. They reported the quality of peer (friendship and loneliness) and sibling (intimacy, warmth, conflict, and rivalry) relations, and posttraumatic stress, depressive and psychological distress symptoms, as well as psychosocial well‐being at baseline (T1), postintervention (T2), and six month follow‐up (T3). Results showed gender‐specific TRT intervention effects: Loneliness in peer relations reduced among boys and sibling rivalry reduced among girls. The TRT prevented the increase in sibling conflict that happened in the control group. The mediating hypothesis was partially substantiated for improved peer relations, and beneficial changes in sibling relations were generally associated with improved mental health. 相似文献