全文获取类型
收费全文 | 5665篇 |
免费 | 97篇 |
专业分类
管理学 | 856篇 |
民族学 | 31篇 |
人才学 | 2篇 |
人口学 | 541篇 |
丛书文集 | 37篇 |
理论方法论 | 680篇 |
综合类 | 48篇 |
社会学 | 2857篇 |
统计学 | 710篇 |
出版年
2023年 | 21篇 |
2020年 | 88篇 |
2019年 | 105篇 |
2018年 | 91篇 |
2017年 | 132篇 |
2016年 | 144篇 |
2015年 | 100篇 |
2014年 | 139篇 |
2013年 | 935篇 |
2012年 | 169篇 |
2011年 | 155篇 |
2010年 | 131篇 |
2009年 | 147篇 |
2008年 | 164篇 |
2007年 | 163篇 |
2006年 | 149篇 |
2005年 | 190篇 |
2004年 | 213篇 |
2003年 | 179篇 |
2002年 | 191篇 |
2001年 | 146篇 |
2000年 | 114篇 |
1999年 | 127篇 |
1998年 | 111篇 |
1997年 | 99篇 |
1996年 | 87篇 |
1995年 | 92篇 |
1994年 | 87篇 |
1993年 | 99篇 |
1992年 | 73篇 |
1991年 | 83篇 |
1990年 | 59篇 |
1989年 | 58篇 |
1988年 | 67篇 |
1987年 | 50篇 |
1986年 | 50篇 |
1985年 | 62篇 |
1984年 | 57篇 |
1983年 | 55篇 |
1982年 | 59篇 |
1981年 | 48篇 |
1980年 | 47篇 |
1979年 | 46篇 |
1978年 | 44篇 |
1977年 | 44篇 |
1976年 | 44篇 |
1975年 | 43篇 |
1974年 | 32篇 |
1973年 | 29篇 |
1971年 | 22篇 |
排序方式: 共有5762条查询结果,搜索用时 0 毫秒
101.
The introduction of the Quality Protects initiative in Englandand the focus on performance management has challenged socialservices departments to examine the systems, processes and outcomesfor children who have their name on a child protection register.Research indicates that approximately one-quarter of the situationsin which children are registered could be described as chronic—thatis, they remain on the child protection register for significantperiods of time, experience more than one period of registrationor suffer a further incident of significant harm whilst subjectto a child protection plan. In this article, the findings froma research study conducted into this group of vulnerable childrenare reported, focusing on the characteristics of the childrenand their families, and their careers in the child protectionsystem. The paper concludes with observations about the weakconceptualization of performance management and the need torecognize the complexity of the factors that influence childrenscareers in the child protection system. 相似文献
102.
Nolan A. Wages Alexia Iasonos John O'Quigley Mark R. Conaway 《Pharmaceutical statistics》2020,19(2):137-144
This paper studies the notion of coherence in interval‐based dose‐finding methods. An incoherent decision is either (a) a recommendation to escalate the dose following an observed dose‐limiting toxicity or (b) a recommendation to deescalate the dose following a non–dose‐limiting toxicity. In a simulated example, we illustrate that the Bayesian optimal interval method and the Keyboard method are not coherent. We generated dose‐limiting toxicity outcomes under an assumed set of true probabilities for a trial of n=36 patients in cohorts of size 1, and we counted the number of incoherent dosing decisions that were made throughout this simulated trial. Each of the methods studied resulted in 13/36 (36%) incoherent decisions in the simulated trial. Additionally, for two different target dose‐limiting toxicity rates, 20% and 30%, and a sample size of n=30 patients, we randomly generated 100 dose‐toxicity curves and tabulated the number of incoherent decisions made by each method in 1000 simulated trials under each curve. For each method studied, the probability of incurring at least one incoherent decision during the conduct of a single trial is greater than 75%. Coherency is an important principle in the conduct of dose‐finding trials. Interval‐based methods violate this principle for cohorts of size 1 and require additional modifications to overcome this shortcoming. Researchers need to take a closer look at the dose assignment behavior of interval‐based methods when using them to plan dose‐finding studies. 相似文献
103.
In this paper, we focus on the problem of factor screening in nonregular two-level designs through gradually reducing the number of possible sets of active factors. We are particularly concerned with situations when three or four factors are active. Our proposed method works through examining fits of projection models, where variable selection techniques are used to reduce the number of terms. To examine the reliability of the methods in combination with such techniques, a panel of models consisting of three or four active factors with data generated from the 12-run and the 20-run Plackett–Burman (PB) design is used. The dependence of the procedure on the amount of noise, the number of active factors and the number of experimental factors is also investigated. For designs with few runs such as the 12-run PB design, variable selection should be done with care and default procedures in computer software may not be reliable to which we suggest improvements. A real example is included to show how we propose factor screening can be done in practice. 相似文献
104.
In Britain in recent years social mobility has become a topic of central political concern, primarily as a result of the effort made by New Labour to make equality of opportunity rather than equality of condition a focus of policy. Questions of the level, pattern and trend of mobility thus bear directly on the relevance of New Labour's policy analysis, and in turn are likely be crucial to the evaluation of its performance in government. However, politically motivated discussion of social mobility often reveals an inadequate grasp of both empirical and analytical issues. We provide new evidence relevant to the assessment of social mobility - in particular, intergenerational class mobility - in contemporary Britain through cross-cohort analyses based on the NCDS and BCS datasets which we can relate to earlier cross-sectional analyses based on the GHS. We find that, contrary to what seems now widely supposed, there is no evidence that absolute mobility rates are falling; but, for men, the balance of upward and downward movement is becoming less favourable. This is overwhelmingly the result of class structural change. Relative mobility rates, for both men and women, remain essentially constant, although there are possible indications of a declining propensity for long-range mobility. We conclude that under present day structural conditions there can be no return to the generally rising rates of upward mobility that characterized the middle decades of the twentieth century - unless this is achieved through changing relative rates in the direction of greater equality or, that is, of greater fluidity. But this would then produce rising rates of downward mobility to exactly the same extent - an outcome apparently unappreciated by, and unlikely to be congenial to, politicians preoccupied with winning the electoral 'middle ground'. 相似文献
105.
The effects of workstation changes and behavioral interventions on safe typing postures in an office
The purpose of the present study was to determine the effectiveness of an ergonomic and behavioral safety intervention for improving participants' safe typing postures in a library office setting. A single-subject multiple baseline design across five participants was employed to evaluate the effects of the four independent variables (workstation adjustment, equipment trial (rollermouse mouse alternative), peer observations, and graphic feedback). Six participant postures were observed repeatedly while participants worked at their workstations throughout the study. Each of the interventions resulted in improvements in safety for more than one posture compared to the previous phase. Results of the study indicate that a comprehensive ergonomic program that includes a workstation adjustment and a behavioral safety approach may be helpful to produce maximum improvements in employees' safe ergonomic postures. 相似文献
106.
A new version of the age-old controversy between religion and science has been launched by today’s intelligent design movement.
Although ostensibly concerned simply with combating Darwinism, this new creationism seeks to drive a “wedge” into the materialist
view of the world, originating with the ancient Greek philosopher Epicurus and manifested in modern times by Darwin, Marx,
and Freud. Intelligent design proponents thus can be seen as challenging not only natural and physical science but social
science as well. In this article, we attempt to explain the long history of this controversy, stretching over millennia, and
to defend science (especially social science) against the criticisms of intelligent design proponents – by defending science’s
materialist roots.
Brett Clark received his Ph.D. from the University of Oregon and is the Editorial Director of Monthly Review Press. His research interests are ecology, political economy, and science. He has published articles and review essays in Theory and Society, The Sociological Quarterly, Organization & Environment, and Critical Sociology. He received the 2007 Outstanding Publication Award from the Environment and Technology Section of the American Sociological Association for a series of articles (one of which was the article “Carbon Metabolism: Global Capitalism, Climate Change, and the Biospheric Rift,” published in Theory and Society in 2005) with Richard York. John Bellamy Foster is Professor of Sociology at the University of Oregon and editor of Monthly Review (New York). He is the author of The Theory of Monopoly Capitalism (1986); The Vulnerable Planet (1994); “Marx’s Theory of Metabolic Rift,” American Journal of Sociology (1999); Marx’s Ecology (2000); Ecology Against Capitalism (2002); Naked Imperialism (2006); and (with Paul Burkett) “Metabolism, Energy, and Entropy in Marx’s Critique of Political Economy,” Theory and Society (2006). Richard York is Associate Professor of Sociology at the University of Oregon and co-editor of the Sage journal Organization & Environment. His research focuses on human interaction with the natural environment and the philosophy, history, and sociology of science. He has published articles in American Sociological Review, Gender & Society, Rural Sociology, Social Problems, Social Science Research, Sociological Forum, The Sociological Quarterly, Theory and Society, and other scholarly journals. He has twice (2004 and 2007) received the Outstanding Publication Award from the Environment and Technology Section of the American Sociological Association. 相似文献
Brett Clark (Corresponding author)Email: |
John Bellamy FosterEmail: |
Richard YorkEmail: |
Brett Clark received his Ph.D. from the University of Oregon and is the Editorial Director of Monthly Review Press. His research interests are ecology, political economy, and science. He has published articles and review essays in Theory and Society, The Sociological Quarterly, Organization & Environment, and Critical Sociology. He received the 2007 Outstanding Publication Award from the Environment and Technology Section of the American Sociological Association for a series of articles (one of which was the article “Carbon Metabolism: Global Capitalism, Climate Change, and the Biospheric Rift,” published in Theory and Society in 2005) with Richard York. John Bellamy Foster is Professor of Sociology at the University of Oregon and editor of Monthly Review (New York). He is the author of The Theory of Monopoly Capitalism (1986); The Vulnerable Planet (1994); “Marx’s Theory of Metabolic Rift,” American Journal of Sociology (1999); Marx’s Ecology (2000); Ecology Against Capitalism (2002); Naked Imperialism (2006); and (with Paul Burkett) “Metabolism, Energy, and Entropy in Marx’s Critique of Political Economy,” Theory and Society (2006). Richard York is Associate Professor of Sociology at the University of Oregon and co-editor of the Sage journal Organization & Environment. His research focuses on human interaction with the natural environment and the philosophy, history, and sociology of science. He has published articles in American Sociological Review, Gender & Society, Rural Sociology, Social Problems, Social Science Research, Sociological Forum, The Sociological Quarterly, Theory and Society, and other scholarly journals. He has twice (2004 and 2007) received the Outstanding Publication Award from the Environment and Technology Section of the American Sociological Association. 相似文献
107.
Publishing performance information about local public services,an increasing trend in many Organisation for Economic Co-operationand Development countries, matters politically because it hasan effect on incumbent local governments' electoral support.Voters are able to use performance information to punish orreward incumbents in the elections that follow their publication,which may fill a gap in the chain of accountability betweenvoters and governments. We model the introduction of publishedComprehensive Performance Assessments of local authorities inEngland, which make summary information about performance availableto voters, as a "shock" to the relationship between voters andincumbents. Controlling for an unpublicized measure of performancechange over time, change in the local tax level, change in localeconomic conditions, and whether the local incumbent is theparty of the incumbent government at the national level, wefind negativity bias. Incumbents in local authorities in the"poor" performance category experience a substantial reductionin aggregate vote share at the election following publication,but there is no similarly sized reward for those in the highestperformance category. 相似文献
108.
109.
Louis A. Penner Heather Orom Terrance L. Albrecht Melissa M. Franks Tanina S. Foster John C. Ruckdeschel 《Journal of Nonverbal Behavior》2007,31(2):99-117
Video recording provides an objective record of the content of medical interactions. However, there is concern that cameras
may be reactive measurement devices that alter what normally transpires during interactions. This study addressed potential
reactivity of cameras in medical interactions. Interactions between 45 patients and 14 medical oncologists were video recorded
and coded for camera-related behaviors. Eleven of 45 patients performed none of the behaviors. Among the other patients, camera-related
behaviors were infrequent and, on average, constituted about 0.1% (one-tenth of one percent) of total interaction time. Behaviors
occurred most often in very early stages of interactions, and when physicians were absent from the room. Seven physicians
showed camera-related behaviors, comprising less than 0.1% of the time they were in the interaction. Results suggest video
recording can provide nonreactive means of studying medical interactions.
相似文献
Louis A. PennerEmail: |
110.
Current thinking suggests that little productive work can be undertaken with families where serious physical or sexual abuse of children has occurred in the absence of a clear acceptance of responsibility for that abuse. This means that children are often removed from their families because of the perceived risks, with the disadvantages that being looked after in local authority care often brings. Alternatively, children may be left in the same environment where serious abuse has taken place with little or no work being undertaken with the family. Either approach fails children, especially those who have made clear and believable allegations in the hope of bringing about a process of change and protection. This article describes the work of a pilot project at the Avon NSPCC in Bristol working with families where the alleged abuser disputes responsibility for maltreating the child. Key to this approach is the support of the non-abusing carer and the child/ren while the concerns of the professional agencies are addressed. The work has two main phases. The first looks for structural change in the organization of family life. The second part asks carers to role-play a ‘similar’ hypothetical family where child abuse has been established. This enables difficult issues raised by the abuse to be addressed and provides an opportunity for carers to express thoughts and feelings to their partner regarding abuse without the seriousness of the concerns being lost. 相似文献