全文获取类型
收费全文 | 2983篇 |
免费 | 110篇 |
专业分类
各国政治 | 235篇 |
工人农民 | 108篇 |
世界政治 | 303篇 |
外交国际关系 | 196篇 |
法律 | 1151篇 |
中国政治 | 14篇 |
政治理论 | 1009篇 |
综合类 | 77篇 |
出版年
2023年 | 10篇 |
2022年 | 10篇 |
2021年 | 23篇 |
2020年 | 47篇 |
2019年 | 58篇 |
2018年 | 97篇 |
2017年 | 85篇 |
2016年 | 106篇 |
2015年 | 63篇 |
2014年 | 78篇 |
2013年 | 462篇 |
2012年 | 97篇 |
2011年 | 102篇 |
2010年 | 75篇 |
2009年 | 84篇 |
2008年 | 98篇 |
2007年 | 116篇 |
2006年 | 81篇 |
2005年 | 109篇 |
2004年 | 95篇 |
2003年 | 80篇 |
2002年 | 87篇 |
2001年 | 77篇 |
2000年 | 77篇 |
1999年 | 60篇 |
1998年 | 52篇 |
1997年 | 48篇 |
1996年 | 52篇 |
1995年 | 44篇 |
1994年 | 41篇 |
1993年 | 36篇 |
1992年 | 44篇 |
1991年 | 50篇 |
1990年 | 45篇 |
1989年 | 42篇 |
1988年 | 34篇 |
1987年 | 19篇 |
1986年 | 25篇 |
1985年 | 25篇 |
1984年 | 25篇 |
1983年 | 24篇 |
1982年 | 30篇 |
1981年 | 38篇 |
1980年 | 28篇 |
1979年 | 13篇 |
1978年 | 14篇 |
1977年 | 12篇 |
1975年 | 12篇 |
1974年 | 13篇 |
1973年 | 8篇 |
排序方式: 共有3093条查询结果,搜索用时 13 毫秒
881.
Paul M. Monk 《亚洲研究》2013,45(2):181-208
In September 2000 the Australian government declassified thousands of pages of documents concerning the Indonesian invasion and annexation of East Timor in 1975. Some 68,000 pages of documents were released. About 2,600 pages of diplomatic documents were withheld, along with Cabinet papers, intelligence materials, and Defence Department records. The documents cover only the period from early 1974 to mid-1976 and do not document the Indonesian war and its human costs. What they do document is the process whereby Australia acquiesced in the Indonesian annexation of East Timor. Above all, they show that secret briefings by the Indonesians kept the Australian government closely informed of Indonesian intentions and operations at every step. In the light of these secret briefings and related documents, it is clear that Prime Minister Gough Whitlam's claim that he wanted to see a “genuine act of self-determination” by the East Timorese is and always was hollow. This was a fig leaf covering his desire to see East Timor incorporated into Indonesia as West Papua had been in the 1960s. Its patina of moral responsibility and legal respectability were his alibi or, as Richard Woolcott put it in late 1974, “escape clause,” if and when Indonesian actions led to accusations of Australian complicity with Jakarta. Mr. Whitlam was complicit. The record is clear. 相似文献
882.
Jack Garland B.Med. Benjamin Ondruschka M.D. Simon Stables M.B.Ch.B. Paul Morrow M.D. Kilak Kesha M.B.B.S. Charley Glenn M.D. Rexson Tse M.D. 《Journal of forensic sciences》2020,65(6):2019-2022
Postmortem computed tomography (PMCT) is a relatively recent advancement in forensic pathology practice that has been increasingly used as an ancillary investigation and screening tool. One area of clinical CT imaging that has garnered a lot of research interest recently is the area of “artificial intelligence” (AI), such as in screening and computer-assisted diagnostics. This feasibility study investigated the application of convolutional neural network, a form of deep learning AI, to PMCT head imaging in differentiating fatal head injury from controls. PMCT images of a transverse section of the head at the level of the frontal sinus from 25 cases of fatal head injury were combined with 25 nonhead-injury controls and divided into training and testing datasets. A convolutional neural network was constructed using Keras and was trained against the training data before being assessed against the testing dataset. The results of this study demonstrated an accuracy of between 70% and 92.5%, with difficulties in recognizing subarachnoid hemorrhage and in distinguishing congested vessels and prominent falx from head injury. These results are promising for potential applications as a screening tool or in computer-assisted diagnostics in the future. 相似文献
883.
Studies of the relationship between the welfare and regulatory state have hitherto either focused on the latter displacing the former, or presented regulation as an alternative means for achieving welfare goals. Little is known, however, about their varied mutual interactions. This article addresses that gap by examining the coevolution of workers' compensation and occupational safety regulation in Germany, France, the United Kingdom, and the Netherlands. Drawing on an extensive international analysis of primary documents, secondary literature, and interviews with regulator, insurance, business, and labor representatives, the article identifies strikingly varied but stable national preferences for: (a) the use of financial versus regulatory instruments and (b) the allocation of regulatory responsibilities between state and nonstate actors. The article presents a novel explanation of that variation as dependent on the relative coherence of interactions between the particular cost‐control logics of welfare provision and wider norms and traditions of state action in each country. 相似文献
884.
Freedom of Information Acts (FOIAs) aim to provide a channelled exchange between citizens and public officials that, irrespective of the citizen's identity, results in the provision of timely, relevant, and often new information about policy. We evaluated Mexico's FOIA by submitting 307 information requests on behalf of an average male citizen to government entities in the years 2007, 2013, and 2015. In 2007, we also submitted the same requests to 87 comparable entities on behalf of a male citizen who signalled economic and political clout. Encouragingly, entities do not discriminate between regular and seemingly influential citizens. Entities also answer more frequently and provide more information in 2015 compared to earlier years, but they are taking longer to answer, frequently charging fees, and often failing to provide quality information to questions they are legally bound to answer. Mexico's FOIA is a functional system demanding significant improvements. 相似文献
885.
AbstractA discrete choice experiment was conducted to discover the relative importance of five characteristics of developing countries considered by people when choosing countries to donate money to. The experiment was administered via an online survey involving almost 700 university student participants (potential donors). The most important recipient country characteristic for participants on average is hunger and malnutrition, followed by child mortality, quality of infrastructure, income per capita, and, least importantly, ties to the donor’s home country. A cluster analysis of participants’ individual ‘part worth utilities’ representing the relative importance of the country characteristics reveals they are not strongly correlated with participants’ demographic characteristics. 相似文献
886.
V. Paul Poteat Craig D. DiGiovanni Jillian R. Scheer 《Journal of youth and adolescence》2013,42(3):351-362
As a form of bias-based harassment, homophobic behavior remains prominent in schools. Yet, little attention has been given to factors that underlie it, aside from bullying and sexual prejudice. Thus, we examined multiple domain general (empathy, perspective-taking, classroom respect norms) and sexual orientation-specific factors (sexual orientation identity importance, number of sexual minority friends, parents’ sexual minority attitudes, media messages). We documented support for a model in which these sets of factors converged to predict homophobic behavior, mediated through bullying and prejudice, among 581 students in grades 9–12 (55 % female). The structural equation model indicated that, with the exception of media messages, these additional factors predicted levels of prejudice and bullying, which in turn predicted the likelihood of students to engage in homophobic behavior. These findings highlight the importance of addressing multiple interrelated factors in efforts to reduce bullying, prejudice, and discrimination among youth. 相似文献
887.
Paul C. Avey 《安全研究》2018,27(1):89-119
What are the strategic costs of foreign-deployed nuclear weapons? Thus far, scholars have focused primarily on the possible benefits: deterring adversaries and reassuring allies. There is little scholarship on the costs side of the cost–benefit equation. This article evaluates one potential cost: that deployments generate crises. I argue that such deployments have, historically, rarely resulted in crises because few deployments generate the level of threat necessary for the target of the deployment to forcefully act. Crises are likely only in the rare situations when the deployment is to an area that the rival views as vital and the deployment threatens to embolden the deploying or host state. I examine all foreign nuclear deployments to support these claims. The results have implications for ongoing debates on the effects of nuclear weapons and US nuclear deployments abroad today. 相似文献
888.
Paul R. Hensel 《国际研究季刊》2001,45(1):81-109
This article studies the management of territorial claims using an issue-based approach that reconceptualizes processes of interstate conflict and cooperation as reflecting contention over issues. Hypotheses on issue management techniques are tested using newly collected data from the Issue Correlates of War (ICOW) research project. Empirical analysis of territorial claims in the Western Hemisphere supports the general model, with issue salience and past issue interactions systematically affecting states' choices between peaceful and militarized techniques for managing or settling their contentious issues. In particular, action over territorial claims is most likely when more valuable territory is at stake, in the aftermath of militarized conflict, and when recent peaceful settlement attempts have failed. Third parties are more likely to become involved in nonbinding activities when the claim appears more threatening to regional or global stability, and submission of claims to binding third-party decisions is most likely between adversaries that have begun to build up a legacy of successful agreements. The article concludes with a discussion of directions for future research on territory and on other issues. 相似文献
889.
890.
Marceau K Neiderhiser JM Lichtenstein P Reiss D 《Journal of youth and adolescence》2012,41(9):1111-1126
The literature consistently shows an association between pubertal maturation and internalizing problems in girls. The association for boys is less clear. The present study examines genetic and environmental influences on the association between pubertal maturation and internalizing problems for boys and girls in two primarily Caucasian adolescent twin/sibling studies: The Swedish Twin study of CHild and Adolescent Development (706 same-sex twin pairs aged 13-14, M = 13.7 years, 50 % female), and the Nonshared Environment in Adolescent Development sample (US-based, 687 same-sex twin/sibling pairs aged 10-18, M = 13.6 years, 47 % female). For girls, more advanced pubertal maturation was associated modestly with more internalizing problems, and that association was entirely explained by shared environmental influences. For boys, the association between pubertal maturation and internalizing problems was weak and inconsistent. Results for girls were remarkably consistent across samples. Findings suggest that nongenetic mechanisms mediate the association between pubertal maturation and internalizing problems. Findings have implications for intervention such that environmental influences shared by twins/siblings may provide the best targets for intervention strategies designed to minimize the potential negative effects of pubertal maturation on internalizing symptoms in girls. 相似文献