全文获取类型
收费全文 | 572篇 |
免费 | 27篇 |
专业分类
各国政治 | 71篇 |
工人农民 | 53篇 |
世界政治 | 47篇 |
外交国际关系 | 31篇 |
法律 | 197篇 |
中国政治 | 6篇 |
政治理论 | 173篇 |
综合类 | 21篇 |
出版年
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 9篇 |
2019年 | 13篇 |
2018年 | 9篇 |
2017年 | 13篇 |
2016年 | 17篇 |
2015年 | 16篇 |
2014年 | 10篇 |
2013年 | 122篇 |
2012年 | 15篇 |
2011年 | 15篇 |
2010年 | 14篇 |
2009年 | 15篇 |
2008年 | 27篇 |
2007年 | 14篇 |
2006年 | 11篇 |
2005年 | 17篇 |
2004年 | 12篇 |
2003年 | 23篇 |
2002年 | 16篇 |
2001年 | 17篇 |
2000年 | 6篇 |
1999年 | 14篇 |
1998年 | 10篇 |
1997年 | 10篇 |
1996年 | 8篇 |
1995年 | 6篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 3篇 |
1989年 | 13篇 |
1988年 | 9篇 |
1987年 | 7篇 |
1986年 | 9篇 |
1985年 | 4篇 |
1984年 | 10篇 |
1983年 | 5篇 |
1982年 | 3篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 4篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1974年 | 3篇 |
1972年 | 4篇 |
1971年 | 3篇 |
1970年 | 3篇 |
排序方式: 共有599条查询结果,搜索用时 0 毫秒
161.
162.
163.
Jean Claude N. Majuga Bellancile Uzayisenga Jean Pierre Kalisa Conny Almekinders 《Development in Practice》2018,28(7):858-871
Although plant clinics are considered an important mechanism in the service delivery to farmers, not much is known about their functioning in the daily reality of plant doctors and farmer-clients. This article reports on an exploratory study describing the functioning of eight plant clinics in Rwanda. Personal and organisational commitment, publicity, and proactive communication with farmers and local leaders are key factors explaining higher attendance of some clinics. Farmer attendance is under-reported by 40–50%. Data management needs improvement to make clinic records reliable tools for decision-makers. This type of assessment can help improve operations and realise the plant clinics’ potential. 相似文献
164.
Governments tend to focus on short-term policies to address the immediate effects of high food prices when spikes occur, while in the long term, urban residents are left to their own devices struggling to ensure adequate household food consumption. Using data collected in three cities in Cameroon among 300 households, this article documents participants’ opinions on appropriate policies to address high food prices as well as how households cope with chronic high food prices. It emphasises the importance of long-term government strategies such as improved farm-to-market roads and agricultural sector supports as means to improve food security. 相似文献
165.
166.
Abstract This paper addresses questions related to effects of source credibility on message acceptance. More specifically, we look at (a) the effects of attributed credibility of the source on message acceptance in situation of source identification versus non‐identification, and (b) the effects of attributed credibility of two competitive sources on the acceptance of their respective messages in positively versus negatively predisposed audiences. Source identification and source competition relate to the more general problem of persuasion and inoculation. Political parties often strive to persuade partisan, hostile, or politically neutral audiences while simultaneously trying to inoculate them against the message of opposing parties. These processes of persuasion can take place in situations where the source is either identified (e.g., a well‐known politician clearly linked with a political party) or not identified (e.g., a journalist who presents a politician's point of view without naming him/her). In cases where the source has been identified, the audience may remember the message itself and yet forget who had advanced the message. This raises the question of the extent to which communicators should concern themselves with the attributed credibility of the source in situations of either source identification or non‐identification? And how important is credibility in reinforcing the support of partisans or in persuading neutral and hostile audiences? These are some of the issues we examine experimentally in this article. 相似文献
167.
Jean E. Krasno 《Democratization》2013,20(3):328-342
168.
169.
Sean A. Spence M.D. F.R.C.Psych. Alexandra Hope‐Urwin R.N. M.Med.Sci. Sudheer T. Lankappa M.R.C.Psych. Jean Woodhead Jenny C.L. Burgess B.Med.Sci. Alice V. Mackay B.Med.Sci. 《Journal of forensic sciences》2010,55(5):1352-1355
Abstract: Recent neuroimaging studies investigating the neural correlates of deception among healthy people, have raised the possibility that such methods may eventually be applied during legal proceedings. Were this so, who would volunteer to be scanned? We report a “natural experiment” casting some light upon this question. Following broadcast of a television series describing our team’s investigative neuroimaging of deception in 2007, we received unsolicited (public) correspondence for 12 months. Using a customized template to examine this material, three independent assessors unanimously rated 30 of an initial 56 communications as unequivocally constituting requests for a “scan” (to demonstrate their author’s “innocence”). Compared with the rest, these index communications were more likely to originate from incarcerated males, who were also more likely to engage in further correspondence. Hence, in conclusion, if neuroimaging were to become an acceptable means of demonstrating innocence then incarcerated males may well constitute those volunteering for such investigation. 相似文献
170.