全文获取类型
收费全文 | 13024篇 |
免费 | 401篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1983篇 |
民族学 | 70篇 |
人才学 | 1篇 |
人口学 | 1100篇 |
丛书文集 | 52篇 |
理论方法论 | 1287篇 |
综合类 | 196篇 |
社会学 | 6213篇 |
统计学 | 2524篇 |
出版年
2023年 | 92篇 |
2021年 | 69篇 |
2020年 | 211篇 |
2019年 | 332篇 |
2018年 | 310篇 |
2017年 | 472篇 |
2016年 | 324篇 |
2015年 | 294篇 |
2014年 | 332篇 |
2013年 | 2319篇 |
2012年 | 445篇 |
2011年 | 448篇 |
2010年 | 348篇 |
2009年 | 299篇 |
2008年 | 380篇 |
2007年 | 406篇 |
2006年 | 349篇 |
2005年 | 309篇 |
2004年 | 293篇 |
2003年 | 254篇 |
2002年 | 285篇 |
2001年 | 301篇 |
2000年 | 257篇 |
1999年 | 234篇 |
1998年 | 194篇 |
1997年 | 192篇 |
1996年 | 179篇 |
1995年 | 160篇 |
1994年 | 128篇 |
1993年 | 183篇 |
1992年 | 189篇 |
1991年 | 168篇 |
1990年 | 182篇 |
1989年 | 160篇 |
1988年 | 154篇 |
1987年 | 145篇 |
1986年 | 141篇 |
1985年 | 112篇 |
1984年 | 164篇 |
1983年 | 135篇 |
1982年 | 132篇 |
1981年 | 99篇 |
1980年 | 127篇 |
1979年 | 133篇 |
1978年 | 96篇 |
1977年 | 101篇 |
1976年 | 90篇 |
1975年 | 103篇 |
1974年 | 80篇 |
1972年 | 72篇 |
排序方式: 共有10000条查询结果,搜索用时 953 毫秒
61.
Uganda has made much progress towards including disabled people in its mainstream development, particularly in the political agenda. The exact process by which this has been achieved and the relationship between this and international guidelines and legislation are not known. This study undertakes to examine this from two specific perspectives: (1) How do international documents relevant to disabled people relate to national legislation in Uganda? (2) What can this comparison, together with the perceptions of stakeholders, tell us about how the legislation and services could improve? International legislation and Ugandan legislation is reviewed and compared. Data from 5 semi‐structured key informant interviews and 6 focus group discussions involving a total of 38 people are collected and analysed. The themes arising from the data are related to the documents, legislation, policies and other relevant literature. The results examine the barriers to service provision; the role of change; the importance of representation; policy and legislation issues; and the effects of devolution. Five specific findings relate to how legislation and services can improve: more resources to increase access for disabled people; strong leadership and collaboration between Disabled People’s Organisations (DPOs) funding bodies and governments; awareness raising and training; representation from all impairment groups; and raising the profile of disabled people through further legislation. 相似文献
62.
63.
Philip L. H. Yu K. F. Lam S. M. Lo 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2005,168(3):583-597
Summary. Factor analysis is a powerful tool to identify the common characteristics among a set of variables that are measured on a continuous scale. In the context of factor analysis for non-continuous-type data, most applications are restricted to item response data only. We extend the factor model to accommodate ranked data. The Monte Carlo expectation–maximization algorithm is used for parameter estimation at which the E-step is implemented via the Gibbs sampler. An analysis based on both complete and incomplete ranked data (e.g. rank the top q out of k items) is considered. Estimation of the factor scores is also discussed. The method proposed is applied to analyse a set of incomplete ranked data that were obtained from a survey that was carried out in GuangZhou, a major city in mainland China, to investigate the factors affecting people's attitude towards choosing jobs. 相似文献
64.
Michael Humphrey 《The Australian journal of social issues》2007,42(1):9-25
This paper explores the construction of Islam as abject and the symbolic positioning of Muslims as being outside secular modernity in Australia through an analysis of the way the criminal legal process and perceptions of criminality are culturalised. The empirical focus is gang rape and the trials of Muslim youth on gang rape charges in Sydney between 2000–2003 which quickly became culturally inflected as ‘Muslim’ and ‘Lebanese’ by media reporting of the criminal trials and moral panic about them as source of social menace. Three dimensions of culturalisation of crime and the criminalisation of culture are identified in the criminal legal process and media reporting of it; firstly the cultural inflection of new laws against gang rape by their association with particular events and trials; secondly the introduction of ‘cultural defence’ by the accused as a mitigating factor in the criminal legal process; thirdly, media reporting and commentary on criminal cases which emphasize cultural explanations for individual criminal behaviour. 相似文献
65.
Michael S. Rendall Ryan Admiraal Alessandra DeRose Paola DiGiulio Mark S. Handcock Filomena Racioppi 《Statistical Methods and Applications》2008,17(4):519-539
In non-experimental research, data on the same population process may be collected simultaneously by more than one instrument.
For example, in the present application, two sample surveys and a population birth registration system all collect observations
on first births by age and year, while the two surveys additionally collect information on women’s education. To make maximum
use of the three data sources, the survey data are pooled and the population data introduced as constraints in a logistic
regression equation. Reductions in standard errors about the age and birth-cohort parameters of the regression equation in
the order of three-quarters are obtained by introducing the population data as constraints. A halving of the standard errors
about the education parameters is achieved by pooling observations from the larger survey dataset with those from the smaller
survey. The percentage reduction in the standard errors through imposing population constraints is independent of the total
survey sample size. 相似文献
66.
We examine how attention to animacy information may contribute to children's developing knowledge of language. This research extends beyond prior research in that children were shown dynamic events with novel entities, and were asked not only to comprehend sentences but to use sentence structure to infer the meaning of a new word. In a 4 × 3 design, animacy status (e.g., animate agent, inanimate patient) and labeling syntax (agent, patient, nonlabel control) were varied. Across most events, 2 1/2‐year‐old participants responded as if they expected animate entities to be named. However, in a prototypical (animate agent‐inanimate patient) event condition, children responded differentially across different syntactic structures. Thus, the clearest evidence for attention to syntactic cues was found in the prototypical event condition. These results suggest that young children attend to the animacy status of unfamiliar entities, that they have expectations about animacy relations in events, and that these expectations support emerging syntactic knowledge. 相似文献
67.
Using an experimental design, this research examines the effect of the nation's first family cap on the births, abortions, and contraception use of over 8,000 women receiving public assistance in New Jersey. The family cap denies additional cash benefits to children conceived while the mother is receiving public assistance. Our research shows that a targeted welfare benefit manipulation does influence fertility behavior; however, the effect is conditioned by race. We find that Black women in the experimental group have a 21% lower birth rate and a 32% higher abortion rate than Black women in the control group. We do not find a birth effect for Hispanic or White women. We discuss the policy implications of the effects of a segmented family cap. 相似文献
68.
Jan C. H. van Eijkeren 《Risk analysis》2002,22(1):159-173
A mechanistic model is presented describing the clearance of a compound in a precision-cut liver slice that is incubated in a culture medium. The problem of estimating metabolic rate constants in PBPK models from liver slice experiments is discussed using identifiability analysis. From the identifiability problem analysis, it appears that in addition to the clearance, the compound's free fraction in the slice and the diffusion rate of the exchange of the compound between culture medium and liver slice should be identified. In addition, knowledge of the culture medium volume, the slice volume, the compound's free fraction, and octanol-water-based partition between medium and slice is presupposed. The formal solution for identification is discussed from the perspective of experimental practice. A formally necessary condition for identification is the sampling of parent compound in liver slice or culture medium. However, due to experimental limitations and errors, sampling the parent compound in the slice together with additional sampling of metabolite pooled from the medium and the slice is required for identification in practice. Moreover, it appears that identification results are unreliable when the value of the intrinsic clearance exceeds the value of the diffusion coefficient, a condition to be verified a posteriori. 相似文献
69.
Ian H. Langford 《Risk analysis》2002,22(1):101-120
Existential, or existential-phenomenological philosophical approaches to the social psychology of risk perception provide a novel framework for understanding issues that are common to all humanity, such as fear of death, freedom and responsibility, isolation and meaninglessness, as these anxieties are a function of existing, or being-in-the-world. These fundamental anxieties can be related theoretically to the ways people perceive risks within social and cultural milieus, and can also be used practically within case studies, as demonstrated in the three examples presented, which examine perceptions of climate change, food-related risks, and environmental awareness via a mixture of quantitative and qualitative techniques. The discussion focuses on the possible insights that can be gained from taking an existential perspective on risk perception, and relates notions of contemporary technologically-oriented societies to the existential challenges faced by individuals and societies in the contemporary world. 相似文献
70.