全文获取类型
收费全文 | 2024篇 |
免费 | 62篇 |
专业分类
管理学 | 329篇 |
民族学 | 11篇 |
人口学 | 139篇 |
丛书文集 | 8篇 |
教育普及 | 1篇 |
理论方法论 | 257篇 |
综合类 | 23篇 |
社会学 | 1003篇 |
统计学 | 315篇 |
出版年
2023年 | 15篇 |
2022年 | 8篇 |
2021年 | 12篇 |
2020年 | 38篇 |
2019年 | 57篇 |
2018年 | 54篇 |
2017年 | 73篇 |
2016年 | 57篇 |
2015年 | 55篇 |
2014年 | 66篇 |
2013年 | 334篇 |
2012年 | 75篇 |
2011年 | 66篇 |
2010年 | 63篇 |
2009年 | 54篇 |
2008年 | 79篇 |
2007年 | 65篇 |
2006年 | 59篇 |
2005年 | 62篇 |
2004年 | 56篇 |
2003年 | 52篇 |
2002年 | 51篇 |
2001年 | 49篇 |
2000年 | 44篇 |
1999年 | 44篇 |
1998年 | 34篇 |
1997年 | 37篇 |
1996年 | 20篇 |
1995年 | 24篇 |
1994年 | 31篇 |
1993年 | 15篇 |
1992年 | 19篇 |
1991年 | 21篇 |
1990年 | 19篇 |
1989年 | 8篇 |
1988年 | 28篇 |
1987年 | 21篇 |
1986年 | 24篇 |
1985年 | 21篇 |
1984年 | 22篇 |
1983年 | 20篇 |
1982年 | 14篇 |
1981年 | 21篇 |
1980年 | 19篇 |
1979年 | 15篇 |
1978年 | 14篇 |
1977年 | 6篇 |
1976年 | 8篇 |
1975年 | 9篇 |
1974年 | 7篇 |
排序方式: 共有2086条查询结果,搜索用时 78 毫秒
31.
Emily S. Minor Christopher W. Appelt Sean Grabiner Lorrie Ward Alexandra Moreno Stephen Pruett-Jones 《Urban Ecosystems》2012,15(4):979-991
Monk parakeets (Myiopsitta monachus) are the most abundant and widely distributed of the naturalized parrots in the United States. Their presence is simultaneously encouraged by some humans (through use of bird feeders) and discouraged by others (through removal of their nests) and, as a result, they show an interesting spatial distribution across urban areas. We used an online public survey and field surveys to examine the influence of human activities and land use on the distribution of this exotic species around Chicago, IL (USA). These efforts resulted in detection of 249 nesting structures and approximately 778 birds across the region. A CART analysis successfully separated nesting sites from random sites and correctly classified 90?% of the nesting sites. The most important factor in the model was land use, with nests typically found in areas with less than 84?% residential zoning. We found nests on a wide variety of substrates including trees, cell phone towers, and stadium lights. Spatial point pattern analysis indicated that nests in trees and nests in built substrates were significantly dissociated with each other at all scales. Nests on built substrates were closer to railroads and highways or in areas with lower human population density, suggesting either a difference in substrate availability or human tolerance between these settings. While humans may have a positive effect on distribution of monk parakeets at large spatial scales, at the scale of this study we see a potentially negative effect of too many humans on the distribution of monk parakeet nests. 相似文献
32.
Bayesian Networks: With Examples in R. By M. Scutari and J.‐B. Denis Boca Raton,Florida CRC Press. 2014. 241 pages. UK £69.99 (hardback). ISBN 978‐1‐48222‐558‐7 下载免费PDF全文
33.
Richard T. Lapan Amanda M. Marcotte Robert Storey Patricia Carbone Sharon Loehr‐Lapan Donna Guerin Teisha Thomas Deidre Cuffee‐Grey Aria Coburn Teresa Pfeiffer Latoya Wilson Stephen Mahoney 《The Career development quarterly》2016,64(2):126-139
An approach is presented for strengthening middle school standards‐based English language arts (ELA) classroom instruction by infusing theory‐ and research‐supported career development constructs and practices. Over an 8‐week period, 90 urban 7th graders participated in an integrated ELA–career development curriculum. Career agency emerged as an important construct for students. It was related to key markers of ELA achievement (i.e., standardized test scores, grades, and positive change in 6th‐ to 7th‐grade test scores) and elaborated on in nuanced ways by students in their written narratives. Four themes related to career agency were identified in student writings: time perspective, challenges of self‐direction, career development, and social and emotional development. Advantages for students and schools related to synergy, scale, and sustainability are discussed. 相似文献
34.
35.
36.
Stephen L. Wright 《The Career development quarterly》2017,65(2):98-112
The author integrated attachment theory with social cognitive career theory (SCCT) to examine how attachment styles influence the career search self‐efficacy activities of interviewing, networking, job searching, and personal exploration. Using an undergraduate sample (N = 275, 81% women), the author tested a structural model. Results indicated that anxious attachment style was negatively related to interviewing self‐efficacy, whereas avoidant attachment style was negatively related to networking, job searching, and personal exploration self‐efficacy. Theoretical implications based on these findings provide support for an integrative model of attachment theory with SCCT. Career counselors are encouraged to consider clients’ attachment styles when working with individuals who are searching for employment. To help address the limitations of the study, future researchers could test the applicability of the current model with a more diverse sample. 相似文献
37.
Matthew McDonald Brendan Gough Stephen Wearing Adrian Deville 《Journal for the theory of social behaviour》2017,47(3):363-379
Consumer culture and neoliberal political economy are often viewed by social psychologists as topics reserved for anthropologists, economists, political scientists and sociologists. This paper takes an alternative view arguing that social psychology needs to better understand these two intertwined institutions as they can both challenge and provide a number of important insights into social psychological theories of self‐identity and their related concepts. These include personality traits, self‐esteem, social comparisons, self‐enhancement, impression management, self‐regulation and social identity. To illustrate, we examine how elements of consumer culture and neoliberal political economy intersect with social psychological concepts of self‐identity through three main topics: ‘the commodification of self‐identity’, ‘social categories, culture and power relations’ and the ‘governing of self‐regulating consumers’. In conclusion, we recommend a decommodified approach to research with the aim of producing social psychological knowledge that avoids becoming enmeshed with consumer culture and neoliberalism. 相似文献
38.
Statistics and Computing - To overcome the inherent limitations of axis-aligned base learners in ensemble learning, several methods of rotating the feature space have been discussed in the... 相似文献
39.
Leanne ten Brinke Stephen Porter Natasha Korva Katherine Fowler Scott O. Lilienfeld Christopher J. Patrick 《Journal of Nonverbal Behavior》2017,41(3):269-287
Psychopathic individuals are characterized as “intra-species predators”—callous, impulsive, aggressive, and proficient at interpersonal manipulation. For example, despite their high risk for re-offending, psychopathic offenders often receive early release on parole. While reputed to be social chameleons, research suggests that even naive observers can accurately infer high levels of psychopathic traits in others with very brief exposures to behavior, but accuracy degrades with extended observation. We utilized a lens model approach to examine the communication styles (emotional facial expressions, body language, and verbal content) of offenders varying in levels of psychopathic traits using “thin slice” video clips of psychological assessment interviews and to reveal which cues observers use to inform their evaluations of psychopathy. Psychopathic traits were associated with more (a) Duchenne smiles, (b) negative (angry) emotional language, and (c) hand gestures (illustrators). Further, psychopathy was associated with a marked behavioral incongruence; when individuals scoring high in psychopathic traits engaged in Duchenne smiles they were also more likely to use angry language. Naïve observers relied on each of these valid behavioral signals to quickly and accurately detect psychopathic traits. These findings provide insight into psychopathic communication styles, opportunities for improving the detection of psychopathic personality traits, and may provide an avenue for understanding successful psychopathic manipulation. 相似文献
40.
This paper is concerned with the well known Jeffreys–Lindley paradox. In a Bayesian set up, the so-called paradox arises when a point null hypothesis is tested and an objective prior is sought for the alternative hypothesis. In particular, the posterior for the null hypothesis tends to one when the uncertainty, i.e., the variance, for the parameter value goes to infinity. We argue that the appropriate way to deal with the paradox is to use simple mathematics, and that any philosophical argument is to be regarded as irrelevant. 相似文献