全文获取类型
收费全文 | 1411篇 |
免费 | 48篇 |
专业分类
管理学 | 197篇 |
民族学 | 12篇 |
人口学 | 102篇 |
丛书文集 | 5篇 |
理论方法论 | 201篇 |
综合类 | 14篇 |
社会学 | 784篇 |
统计学 | 144篇 |
出版年
2023年 | 10篇 |
2022年 | 7篇 |
2021年 | 12篇 |
2020年 | 28篇 |
2019年 | 41篇 |
2018年 | 50篇 |
2017年 | 73篇 |
2016年 | 61篇 |
2015年 | 33篇 |
2014年 | 40篇 |
2013年 | 212篇 |
2012年 | 52篇 |
2011年 | 59篇 |
2010年 | 41篇 |
2009年 | 35篇 |
2008年 | 51篇 |
2007年 | 53篇 |
2006年 | 46篇 |
2005年 | 36篇 |
2004年 | 57篇 |
2003年 | 35篇 |
2002年 | 37篇 |
2001年 | 32篇 |
2000年 | 29篇 |
1999年 | 25篇 |
1998年 | 30篇 |
1997年 | 19篇 |
1996年 | 21篇 |
1995年 | 10篇 |
1994年 | 10篇 |
1993年 | 14篇 |
1992年 | 14篇 |
1991年 | 13篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 9篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 12篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 15篇 |
1981年 | 9篇 |
1980年 | 11篇 |
1978年 | 13篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1975年 | 5篇 |
1973年 | 6篇 |
1969年 | 4篇 |
排序方式: 共有1459条查询结果,搜索用时 15 毫秒
21.
22.
Parker J. Banks Matthew S. Tata Patrick J. Bennett Allison B. Sekuler Aaron J. Gruber 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2018,34(1):181-197
Gambling studies have described a “near-miss effect” wherein the experience of almost winning increases gambling persistence. The near-miss has been proposed to inflate the value of preceding actions through its perceptual similarity to wins. We demonstrate here, however, that it acts as a conditioned stimulus to positively or negatively influence valuation, dependent on reward expectation and cognitive engagement. When subjects are asked to choose between two simulated slot machines, near-misses increase valuation of machines with a low payout rate, whereas they decrease valuation of high payout machines. This contextual effect impairs decisions and persists regardless of manipulations to outcome feedback or financial incentive provided for good performance. It is consistent with proposals that near-misses cause frustration when wins are expected, and we propose that it increases choice stochasticity and overrides avoidance of low-valued options. Intriguingly, the near-miss effect disappears when subjects are required to explicitly value machines by placing bets, rather than choosing between them. We propose that this task increases cognitive engagement and recruits participation of brain regions involved in cognitive processing, causing inhibition of otherwise dominant systems of decision-making. Our results reveal that only implicit, rather than explicit strategies of decision-making are affected by near-misses, and that the brain can fluidly shift between these strategies according to task demands. 相似文献
23.
Sabine S. Nooten Patrick Schultheiss Jules Wright Catriona Macdonald Brajesh K. Singh James M. Cook Sally A. Power 《Urban Ecosystems》2018,21(3):565-576
Recent concern over increasing loss of biodiversity has prompted considerable interest in the role of urban green spaces as reservoirs of local biodiversity. This study assessed the diversity of three indicator taxa - plants, ants and birds - on golf courses spanning a wide range of environmental variation in terms of climate, elevation, course age, size and connectivity to native woodland. Species richness and community composition was further compared between contrasting on-course habitat types that reflect different management intensities. We identified a set of taxon-specific environmental correlates indicating an intricate interplay of landscape- and local-scale variables that affect local species diversity. Our results show that floristic diversity is positively associated with the amount of rainfall, whereas ant and bird diversity are related to local-scale factors, particularly the number of trees and the size of water features on a site. The amount of on-course native habitat was a strong predictor of plant and ant diversity and was also associated with the number of unique species at the site level; this reinforces the value of remnant habitat patches as local biodiversity reservoirs that represent mini hot-spots in an otherwise species-poor urban landscape. Community composition for all three taxa differed markedly between non-playing and playing areas, with boundary and remnant habitats generally having more diverse, species-rich communities. Our results suggest that local floral and faunal biodiversity on urban golf courses can be enhanced by creating woody non-playing areas and, especially, by preserving, restoring or expanding remnant habitats. 相似文献
24.
This paper revisits core family support messages for social work practice in working with children and families, linking to findings from high-profile child protection cases in the UK and the Republic of Ireland. Drawing on a comparative study where these identified practice messages were explored through the lens of testimony of family support workers in the UK and Ireland, these core messages are examined. Operating with hard-to-engage children and parents, we hear how families and family support worker colleagues now view the core functions of child and family work across both jurisdictions (Ireland and England). The authors argue that by naming a more detailed set of practices that are deemed as most useful by families, based on the benefits and challenges of intensive family support work, key messages arise that have major resonance for social work and multiagency practice into the future. A basic message from this study is that valuable lessons on engagement and intervention with families can be drawn for professionals by examining the practice elements of this group of paraprofessionals in the child and family arena. This paper adds to debates on the role of support and intervention in social work and family support work. 相似文献
25.
26.
Walking Ability is Associated with Social Communication Skills in Infants at High Risk for Autism Spectrum Disorder 下载免费PDF全文
Jessica Bradshaw Cheryl Klaiman Scott Gillespie Natalie Brane Moira Lewis Celine Saulnier 《Infancy》2018,23(5):674-691
Achievement of early motor milestones in infancy affords new opportunities for social interaction and communication. Research has shown that both motor and social deficits are observed in infants who later develop autism spectrum disorder (ASD). This study examined associations between motor and Social communication skills in 12‐month‐old infant siblings of children with ASD who are at heightened risk for developmental delays (N = 86) and low‐risk, typically developing infants (N = 113). Infants were classified into one of three groups based on their walking ability: walkers (walks independently), standers (stands independently), or prewalkers (does not yet stand or walk independently). Social communication and cognitive skills were assessed with two standardized assessments (Communication and Symbolic Behaviors Scales [CSBS] and Mullen Scales of Early Learning) and compared across the three walking groups. Results demonstrated that high‐risk walkers showed superior Social communication skills, but commensurate cognitive skills, compared to high‐risk prewalkers. In contrast, Social communication and cognitive skills were largely comparable for low‐risk infants, regardless of walking status. Findings suggest that for high‐risk infants, who are already vulnerable to developmental delays and ASD, independent walking may facilitate the emergence of Social communication abilities. Pivotal motor milestones may serve as useful indicators of Social communication delays and targets for intervention. 相似文献
27.
Megan Woods Rob Macklin Gemma K. Lewis 《International Journal of Social Research Methodology》2016,19(4):385-403
Computer-assisted qualitative data analysis software (CAQDAS) programs are established tools for qualitative research. Making informed decisions when using them requires researchers to understand how they affect research practices and outcomes. In this article we consider the impact of CAQDAS on researcher reflexivity. Reviewing three decades of literature, we identify specific ‘reflexive moments’ experienced by CAQDAS users, the contexts in which they occur, the issues they raise, and the reflexive awareness they generate. The ways in which CAQDAS can enhance or undermine researcher reflexivity are also reported. By doing so, we aim to help researchers and especially research students (and their supervisors) understand the relationship between CAQDAS and reflexivity and the reflexive moments they may encounter when using such software. 相似文献
28.
Young graduates in England often return to the parental home after a period of living away during their university studies. Little is known, however, about why they return and how coresidence with parents fits within a life trajectory. This paper reports upon an in-depth cross-sectional qualitative study of young graduates’ coresidence with their parents. It identifies a five-part typology of the purpose of coresidence as perceived by the graduates: a base camp for exploration before settling into adulthood; a launch pad for careers; a savings bank, in particular for future property purchases; a refuge for respite and reflection; and a preferred residence, whether on account of comfort, cultural practice or to support parents. The paper further explores how far these purposes were associated in young adults’ accounts with social structures, individual agency or some combination of these. It concludes that the default understanding of graduates’ return and coresidence as a residual function when other options fail is insufficient. Such a generalisation obscures the different purposes which the return can enable; it overplays some notion of a broken biography rather than the positive contribution of coresidence to graduates’ trajectories towards adulthood and to their life experiences. 相似文献
29.
Nicola K. Gale Gareth M. Thomas Rachel Thwaites Sheila Greenfield Patrick Brown 《Sociology Compass》2016,10(11):1046-1071
In this article, we define the concept of “risk work,” which aims to make visible working practices to assess or manage risk, in order to subject these practices to sociological critique. This article reviews and synthesizes existing published literature to identify components of risk work: (a) translating risk into different contexts, (b) minimizing risks in practice, and (c) caring in the context of risk. We argue that these three components of risk work raise important tensions for workers that have been inadequately explored in the literature to date. We propose that future research should additionally focus on practitioner subjectivity and identity in risk work. In addition, we argue that comparative research—across type of risk and different contexts—and methodological and theoretical diversity would enhance this emerging field of research. 相似文献
30.
We investigate the performance of capacity-sensitive order review and release (ORR) procedures in job shop environments that have not been previously explored. Previous research has ignored the case of job shops which must perform to very tight due-dates because of time-sensitive customers. We propose and test a new capacity sensitive ORR procedure called path based bottleneck (PBB) in such environments, along with the modified infinite loading (MIL) procedure which has been shown to work well in several studies. We compare the performance of these two controlled release rules with that of immediate release rule under different conditions of capacity utilization and customer specified exogenous duedates. Our results indicate that PBB performs well in lowering total costs when due-dates are tight, while MIL is a better procedure with relatively loose to medium due-dates. We also show that in many cases, the shortest processing time (SPT) dispatching rule is a superior performer than a due-date based rule like critical ratio (CR); a conclusion which is contrary to the existing research in this area. In addition, the shop floor control policies recommended are shown to be sensitive to the cost structure of the firm. The managerial implications of this research in providing effective shop floor control in job shops operating under tight due-date conditions are also discussed. 相似文献