全文获取类型
收费全文 | 5088篇 |
免费 | 155篇 |
专业分类
管理学 | 680篇 |
民族学 | 24篇 |
人口学 | 523篇 |
丛书文集 | 20篇 |
教育普及 | 1篇 |
理论方法论 | 487篇 |
综合类 | 59篇 |
社会学 | 2386篇 |
统计学 | 1063篇 |
出版年
2023年 | 32篇 |
2021年 | 50篇 |
2020年 | 89篇 |
2019年 | 116篇 |
2018年 | 128篇 |
2017年 | 194篇 |
2016年 | 139篇 |
2015年 | 81篇 |
2014年 | 133篇 |
2013年 | 783篇 |
2012年 | 160篇 |
2011年 | 145篇 |
2010年 | 124篇 |
2009年 | 109篇 |
2008年 | 138篇 |
2007年 | 127篇 |
2006年 | 148篇 |
2005年 | 112篇 |
2004年 | 112篇 |
2003年 | 76篇 |
2002年 | 98篇 |
2001年 | 131篇 |
2000年 | 122篇 |
1999年 | 132篇 |
1998年 | 101篇 |
1997年 | 86篇 |
1996年 | 93篇 |
1995年 | 68篇 |
1994年 | 60篇 |
1993年 | 87篇 |
1992年 | 89篇 |
1991年 | 97篇 |
1990年 | 78篇 |
1989年 | 78篇 |
1988年 | 61篇 |
1987年 | 68篇 |
1986年 | 62篇 |
1985年 | 75篇 |
1984年 | 66篇 |
1983年 | 69篇 |
1982年 | 44篇 |
1981年 | 40篇 |
1980年 | 37篇 |
1979年 | 47篇 |
1978年 | 38篇 |
1977年 | 33篇 |
1976年 | 34篇 |
1975年 | 32篇 |
1974年 | 40篇 |
1973年 | 29篇 |
排序方式: 共有5243条查询结果,搜索用时 15 毫秒
161.
162.
Kaylie T. Allen Elizabeth A. Meadows 《Journal of American college health : J of ACH》2017,65(4):250-258
Objective: Women assertively resisting sexual aggression have the best chances of avoiding completed rape. Especially with acquaintances, there are significant social and psychological barriers to resistance. Novel vignettes depicting acquaintance rape were designed to enhance self-efficacy, reduce unrealistic optimism, and empower assertive resistance. Participants: The data were collected using a Web-based survey of 449 female college students from multiple universities in August–October 2014. Methods: Between-subjects mixed-methods design. Participants were randomly assigned to read one of four vignettes and complete self-report measures of personal vulnerability, self-efficacy, and beliefs and intention about resistance. Results: Although vignettes did not impact self-efficacy, one vignette enhanced perceived controllability and decreased unrealistic optimism. Women who read about completed acquaintance rape described intention to use physically assertive responses at double the rate of women reading about successful resistance. Conclusions: As low-cost, easily disseminated materials, vignettes about sexual assault may enhance campus prevention efforts. 相似文献
163.
The Alliance Experience Transfer Effect: The Case of Industry Convergence in the Telecommunications Equipment Industry 下载免费PDF全文
A central premise of the industry change literature is that firms change their strategic actions when an industry changes. Industry convergence (IC), the blending of boundaries between industries creating competition among firms that previously did not compete, is increasingly impacting many industries and is a salient case of industry change. Acquisitions are an important action shaping the course of IC because they trigger imitation and bandwagon effects further accelerating IC. This paper focuses on why and when learning from alliances reduces uncertainty resulting in acquisitions during IC: an ‘alliance experience transfer effect’. We demonstrate the utility of this mechanism for the substitution‐based form of IC that occurred between the telecommunications equipment and computer networking industries. Our key insight is that when the extent of IC is low there are significant transfer effects but, as the extent of IC increases, firms have access to an expanding volume and diversity of information sources that reduce uncertainty, thus weakening the transfer effect mechanism. We contribute to the alliance–acquisition relationship and learning literatures by demonstrating that the alliance experience transfer effect mechanism explains changes in firm strategic action (alliancing and acquiring) as the extent of IC changes. We also introduce a semi‐convergence perspective by directly measuring the extent of IC. 相似文献
164.
T. H. Starks 《统计学通讯:模拟与计算》2013,42(5):603-617
The use of the logit transformation on paired-comparison data in the weighted least squares analysis of response surfaces for aesthetic qualities of products is discussed. Monte Carlo simulations are employed to investigate the small sample properties of the estimators and test statistics. A secondary objective of the Monte Carlo simulations is the comparison of two transformation procedures. The simulations are of standard-item paired-compar-ison experiments in which ties are not allowed. 相似文献
165.
T. Swartz 《统计学通讯:理论与方法》2013,42(11):2999-3011
This paper reviews difficulties with the interpretation and use of the prior parameter u required in the Dirichlet approach to nonpararnetric Bayesian statistics. Two subjective prior distributions are introduced and studied. These priors are obtained computationally by requiring that the experimenter specify certain constraints. 相似文献
166.
Annelies E. M. van Vianen Irene E. De Pater Paul T. Y. Preenen 《The Career development quarterly》2009,57(4):298-309
Today, young adults are expected to decide between educational, vocational, and job options and to make the best choice possible. Career literatures emphasize the importance of young adults' career decision making but also acknowledge the problems related to making these decisions. The authors argue that career counselors could support clients' intuitive processing of career information and help their clients to develop a positive and flexible view of the self and the environment while diminishing concerns about accountability for and irreversibility of career decisions. The authors argue that career adaptability rather than decision making should become the focal concept of career theory and practice. 相似文献
167.
This article examines the concept of career exploration in adult populations. In contrast to the prevailing positive view of career exploration, the authors present a more complex and balanced perspective of this process, addressing some of the barriers to career exploration and the applicability of this concept to different populations. They examine differences between voluntary exploration and forced or chance exploration, discuss how relationships may be barriers to exploration, consider various outcomes of career explorations, and call for a more holistic view of the individual in career counseling. 相似文献
168.
This paper deals with the problem of selecting the “best” population from a given number of populations in a decision theoretic framework. The class of selection rules considered is based on a suitable partition of the sample space. A selection rule is given which is shown to have certain optimum properties among the selection rules in the given class for a mal rules are known. 相似文献
169.
Alan T. Peacock 《Population studies》2013,67(3):298-305
The persistence of the population problem in many developing countries' especially in Asia, must mean that the relation between population trends and productivity has to be kept continually under review. In recent years the economists' interest in this relation has shifted away from the Keynesian stagnation analysis, with its emphasis on the influence of population trends on the level and composition of consumption and investment, to a reconsideration of their influence on production. It is a striking testimony to the influence of Malthus that his theory is still under active consideration and that it frequently serves as starting point, as it does for Professor Belshaw, for an analysis of the economics of population. Divorced from its particular context, in which value judgements particularly distasteful to many commentators abound, and reformulated in terms of modern production theory, it clarifies the main issues, by showing what facts are required and what logic demands in order to provide a useful answer to practical problems of policy. Readers of the first two chapters of Professor Buquet's book will find ample confirmation of the sterility of much of the debate regarding optimum populations which developed largely from differences of opinion about definitions of “good” and “bad” economic criteria for policy than from faults in logic. The debate continues and the posthumous career of Parson Malthus still occasions even personal abuse! It would be difficult, however, to accuse Professor Belshaw of taking sides in the Malthusian debate. He takes the Malthusian analysis for what it is worth, shows where it fits the facts and where it does not, provides convincing evidence of a Malthusian problem in Asia by a skilful round-up of well presented statistics, and then, instead of committing himself to a forecast of what is likely to happen in Asia, he illustrates through the modern theory of production what are the pre-conditions for a removal of the population problem. This is surely a sensible procedure and contrasts favourably with the sibylline utterances of a number of distinguished amateur social scientists. 相似文献
170.