全文获取类型
收费全文 | 18606篇 |
免费 | 321篇 |
专业分类
管理学 | 2436篇 |
民族学 | 78篇 |
人才学 | 1篇 |
人口学 | 1562篇 |
丛书文集 | 92篇 |
教育普及 | 3篇 |
理论方法论 | 1655篇 |
综合类 | 386篇 |
社会学 | 9082篇 |
统计学 | 3632篇 |
出版年
2023年 | 93篇 |
2021年 | 109篇 |
2020年 | 220篇 |
2019年 | 328篇 |
2018年 | 393篇 |
2017年 | 553篇 |
2016年 | 425篇 |
2015年 | 324篇 |
2014年 | 410篇 |
2013年 | 3523篇 |
2012年 | 570篇 |
2011年 | 504篇 |
2010年 | 383篇 |
2009年 | 351篇 |
2008年 | 400篇 |
2007年 | 391篇 |
2006年 | 374篇 |
2005年 | 410篇 |
2004年 | 351篇 |
2003年 | 372篇 |
2002年 | 407篇 |
2001年 | 454篇 |
2000年 | 427篇 |
1999年 | 435篇 |
1998年 | 300篇 |
1997年 | 260篇 |
1996年 | 320篇 |
1995年 | 295篇 |
1994年 | 309篇 |
1993年 | 315篇 |
1992年 | 337篇 |
1991年 | 322篇 |
1990年 | 338篇 |
1989年 | 302篇 |
1988年 | 288篇 |
1987年 | 267篇 |
1986年 | 254篇 |
1985年 | 281篇 |
1984年 | 258篇 |
1983年 | 222篇 |
1982年 | 188篇 |
1981年 | 168篇 |
1980年 | 171篇 |
1979年 | 182篇 |
1978年 | 165篇 |
1977年 | 130篇 |
1976年 | 124篇 |
1975年 | 136篇 |
1974年 | 99篇 |
1973年 | 89篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
This paper examines the demand for money in Bolivia during the 1980s, a decade of extreme instability with annual inflation rates reaching over 20,000 percent, and a subsequent stabilization, with annual rates falling to less than 25 percent and remaining so for more than five years.
Our empirical analysis makes use of error-correction approaches, time-varying-parameter estimation with Kalman filtering, and GARCH models of expected inflation and inflation variance. We find that expected inflation and inflation uncertainty both matter for money demand. Time-varying estimates show that the reaction to monetary disequilibria was significantly faster during hyperinflation. 相似文献
Our empirical analysis makes use of error-correction approaches, time-varying-parameter estimation with Kalman filtering, and GARCH models of expected inflation and inflation variance. We find that expected inflation and inflation uncertainty both matter for money demand. Time-varying estimates show that the reaction to monetary disequilibria was significantly faster during hyperinflation. 相似文献
42.
43.
Research into the nature of aggressive behavior in youths has demonstrated that these youths are often the victims of abuse, exhibit aggressive behavior in early childhood, and remain aggressive into young adulthood. The treatment approach described in this article is a modification of Monahan's [1981] model of the prediction of violent behavior and the anger-management approach of Novaco [1985], and integrates the developmental models of Piaget [1963] and Erikson [1959]. The program is a combination of cognitive, behavioral, and expressive therapies and is targeted to the reduction of dysfunctional cognitive, affective, behavioral, and problem-solving patterns of aggressive youths. As referrals of such aggressive clients are often involuntary, interventions with unwilling and resistant clients are also presented. 相似文献
44.
This study examines the influence of the socialization of aggression among different gender and social class groupings and the influence of psychosocial stage on cognitive developmental play preferences among groups of school aged children. Observations of 143 play groups were coded for play preference (symbolic play, practice play, games with rules) and play performance (cooperative or competitive). Findings of the log-linear data analysis suggest a middle class and masculine bias in Piaget's cognitive model (i.e., that as age increases children prefer more games with rules). This model held only for middle class and affluent boys. Girls (both latency and prepubertal) and lower socioeconomic groups tended to prefer practice play. Girls were more likely to play cooperatively; boys more likely to play competitively. Implications for theory development and clinical practice are explored. 相似文献
45.
We propose some estimators of noncentrality parameters which improve upon usual unbiased estimators under quadratic loss. The distributions we consider are the noncentral chi-square and the noncentral F. However, we give more general results for the family of elliptically contoured distributions and propose a robust dominating estimator. 相似文献
46.
47.
Andrée Coulombe M.Ps. Robert Ladouceur Ph.D. Raymond Desharnais Ph.D. Jean Jobin Ph.D. 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》1992,8(3):235-244
This study investigated the relationship between the level of arousal (Heart Rate) and the number of erroneous perceptions among video poker players. Twelve regular and twelve occasional gamblers participated in a gambling session conducted in a natural environment. It was hypothesised that 1) a significant positive correlation would be observed between arousal and the number of erroneous verbalizations, 2) regular players would show a higher level of arousal than occasional players, and 3) they would emit more erroneous verbalizations. Results showed that hypotheses one and three were confirmed. Theoretical and practical implications of these results for the psychology of gambling are discussed.This study was supported by a grant from Loto-Québec. 相似文献
48.
49.
This article examines trends in divorce attitudes of young adult women in the United States by educational attainment from 1974 to 2002. Women with 4‐year college degrees, who previously had the most permissive attitudes toward divorce, have become more restrictive in their attitudes toward divorce than high school graduates and women with some college education, whereas women with no high school diplomas have increasingly permissive attitudes toward divorce. We examine this educational crossover in divorce attitudes in the context of variables correlated with women's educational attainment, including family attitudes and religion, income and occupational prestige, and family structure. We conclude that the educational crossover in divorce attitudes is associated most strongly with work and family structure variables. 相似文献
50.
Kevin P. Scheibe Brian E. Mennecke Christopher W. Zobel 《Journal of Labor Research》2006,27(3):275-290
Outsourcing of IT functions has become a widespread corporate practice, which has naturally led to concerns among IT works about how this affects their jobs. The issue is complex, and many companies are bringing their IT functions back inhouse. In light of this complexity, what skills do IT workers need to be com-petitive? We address this question first by reviewing the literature and then by examining two corporate case studies that have dealt with outsourcing issues. Based on this view of outsourcing, we discuss the skills that can provide a com-petitive advantage in the current environment. 相似文献