全文获取类型
收费全文 | 2918篇 |
免费 | 532篇 |
专业分类
各国政治 | 466篇 |
工人农民 | 121篇 |
世界政治 | 381篇 |
外交国际关系 | 181篇 |
法律 | 1409篇 |
中国政治 | 37篇 |
政治理论 | 822篇 |
综合类 | 33篇 |
出版年
2023年 | 20篇 |
2022年 | 17篇 |
2021年 | 61篇 |
2020年 | 87篇 |
2019年 | 207篇 |
2018年 | 175篇 |
2017年 | 206篇 |
2016年 | 216篇 |
2015年 | 182篇 |
2014年 | 188篇 |
2013年 | 735篇 |
2012年 | 145篇 |
2011年 | 135篇 |
2010年 | 133篇 |
2009年 | 71篇 |
2008年 | 102篇 |
2007年 | 83篇 |
2006年 | 77篇 |
2005年 | 53篇 |
2004年 | 63篇 |
2003年 | 53篇 |
2002年 | 41篇 |
2001年 | 32篇 |
2000年 | 50篇 |
1999年 | 23篇 |
1998年 | 18篇 |
1997年 | 18篇 |
1996年 | 17篇 |
1995年 | 16篇 |
1994年 | 21篇 |
1993年 | 22篇 |
1992年 | 14篇 |
1991年 | 12篇 |
1990年 | 13篇 |
1989年 | 8篇 |
1988年 | 14篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 7篇 |
1984年 | 10篇 |
1983年 | 8篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 10篇 |
1979年 | 10篇 |
1978年 | 10篇 |
1977年 | 6篇 |
1973年 | 8篇 |
1971年 | 7篇 |
1965年 | 4篇 |
排序方式: 共有3450条查询结果,搜索用时 9 毫秒
61.
Mária Kondeková Radoslav Beňuš Ph.D. Soňa Masnicová Ph.D. Petra Švábová Ph.D. 《Journal of forensic sciences》2020,65(4):1303-1309
Minutiae are small distinguishing features found along every ridge flow, which make each friction ridge print unique. The most common friction ridge prints found at the crime scene are fingerprints; therefore, the most of the minutiae studies are focused exactly on this kind of prints. The authors believe that further examination and enlargement of the palm print database could result in better use of the palm prints for personal identification. We analyzed a total of 160 palm prints from 40 females and 40 males aged between 18 and 70 years from Slovakia. For the evaluation of the minutiae, the area of the hypothenar had to be marked out. The classification of the minutiae used for this study was based on a modified version of the classification system using the total of 13 types of minutiae. The frequency of every minutiae type was calculated and, using the chi-square test with Yates's correction, bilateral and sex differences were assessed. The relationship between the different types of minutiae was examined with Pearson's correlation test. During the initial phases of the identification process, the focus should be on the least common types of minutiae (Y or M and return), which were found not to correlate; thus, their mutual occurrence is random (e.g., overlap—Y or M, crossbar—return, or Y or M—dock). The results of the present study show which specific minutiae types are the most suitable for personal identification. These findings may be beneficial in more effective outcome of the identification process. 相似文献
62.
63.
Paolo Roma Luciano Giromini Franco Burla Stefano Ferracuti Donald J. Viglione Cristina Mazza 《Psychological injury and law》2020,13(1):57-65
The Inventory of Problems-29 (IOP-29; Viglione, Giromini, & Landis, Journal of Personality Assessment, 99(5), 534–544, 2017) is a 29-item, recently published, self-administered test aimed at assessing the credibility of various symptom presentations. Although available research strongly supports the use of this symptom validity test in malingering-related contexts, to date, only few studies have analyzed data from real-life forensic evaluations. To fill this gap and explore ecological and convergent validity, the current study analyzed data from 74 court-ordered evaluations aimed at establishing the possible presence of psychological injury. Such evaluations are high-stakes situations in which exaggeration or malingering occur relatively often. We used a research-supported and popular symptom validity test, i.e., the Structured Inventory of Malingered Symptomatology (SIMS; Smith & Burger, Journal of the American Academy on Psychiatry and Law, 25:180–183, 1997), as our criterion variable. The IOP-29 produced excellent area under the curve (AUC) values of .98 with a recommended SIMS total score cutoff (≥ 17) and .99 when eliminating too-close-to-classify cases (Rogers & Bender, 2018) and very large Cohen’s d effect sizes of 2.98 and 3.59, respectively. Crucially, when implementing established cut scores from previous research, the IOP-29 yielded very high specificity and sensitivity rates, and the predictions from the two tests were strikingly similar. Taken together, these findings support the strong convergent validity of the IOP-29 and its utility in applied clinical and forensic settings. 相似文献
64.
Gonzalo Ordez‐Matamoros Michelle Vernot‐Lpez Ornella Moreno‐Mattar Luis Antonio Orozco 《政策研究评论》2020,37(2):174-200
International research collaboration (IRC) is associated with both positive and negative effects on the performance of research in emerging economies. While some authors claim that North–South collaborations improve scientific quality and visibility for Southern countries, others claim that it may entail the reorientation of research to comply with Northern agendas. South–South collaborations are thought to increase the focus on local affairs, therefore leading to a relatively small number of scientific international publications appearing in “high quality” journals. Research on the impact of IRC beyond publications in international journals has been neglected despite the importance of other products in knowledge creation. This research uses a broad range of scientific outputs to empirically assess such assumptions and explore the outcomes of IRC in Colombia. Results from multivariate regressions and nonparametric analyses show that, contrary to common assumptions, Colombian research teams collaborating with partners from the global South report higher scientific production, while those collaborating with Northern countries seem to contribute to local knowledge the most. 相似文献
65.
Credit markets are expanding, and with them also the automated, large‐scale commercialization of personal credit data. The increasing use of data and scores for commodified decision making lends greater urgency to the study of credit data regulatory regimes. This article promotes a comparative regulatory governance perspective as the basis for theory‐driven, multidimensional measurement. In order to measure consumer protection, we distinguish three different subregimes (collection, profiling, and use) and construct a two‐dimensional index of consumer protection (market restriction and user empowerment). We then assess the index and demonstrate its applicability and validity, building on empirical analysis of the regulatory regimes in the United States, France, Sweden, and Israel for the year 2019. Our approach points to a new direction in researching and measuring regulatory regimes in a comparative manner, which looks beyond national analysis toward an in‐depth understanding of other, equally important, levels of variation. 相似文献
66.
67.
This paper examines Irish campaigns for condom access in the early 1990s. Against the backdrop of the AIDS crisis, activists campaigned against a law which would not allow condoms to be sold from ordinary commercial spaces or vending machines, and restricted sale to young people. Advancing a conception of ‘transformative illegality’, we show that illegal action was fundamental to the eventual legalisation of commercial condom sale. However, rather than foregrounding illegal condom sale as a mode of spectacular direct action, we show that tactics of illegal sale in the 1990s built on 20 years of everyday illegal sale within the Irish family planning movement. Everyday illegal sale was a long-term world-making practice, which gradually transformed condoms’ legal meanings, eventually enabling new forms of provocative and irreverent protest. Condoms ‘became legal’ when the state recognised modes of condom sale, gradually built up over many years and publicised in direct action and in the courts. 相似文献
68.
69.
Wen‐Jui Han Christopher Ruhm Jane Waldfogel 《Journal of policy analysis and management》2009,28(1):29-54
We describe trends in maternal employment and leave‐taking after birth of a newborn and analyze the extent to which these behaviors are influenced by parental leave policies. Data are from the June Current Population Survey (CPS) Fertility Supplements, merged with other months of the CPS, and cover the period 1987 to 1994. This time span is one during which parental leave legislation expanded at both the state and federal level. We also provide the first comprehensive examination of employment and leave‐taking by fathers of infants. Our main finding is that leave expansions are associated with increased leave‐taking by both mothers and fathers. The magnitudes of the changes are small in absolute terms but large relative to the baseline for men and much greater for college‐educated or married mothers than for their less‐educated or single counterparts. © 2009 by the Association for Public Policy Analysis and Management 相似文献
70.
Marta Kolářová 《Feminist Review(on-Line)》2009,92(1):91-107
This paper examines gender aspects of tactics of the alter-globalization movement. Focusing mainly on two transnational collective actions in Prague in 2000 and in Genoa in 2001, the research draws on participant observation, interviews with activists and analysis of the movement's alternative media. The feminist activism within the movement, the gendered tactics and their representation in the alternative media are analysed using the concept of diffusion. Although feminists are involved in the protests, and local Czech feminist activism was incited by the international mobilizations in Prague in 2000, they are often marginalized because of the emphasis on masculine confrontational and violent tactics used in demonstrations. The movement's alternative media further reproduce gender stereotypes. The visual representations of the tactics are traditionally gendered – women are depicted as fairies, men as fighters; this is because the movement does not want to appear weak and feminine, and seeks to be effective. 相似文献