全文获取类型
收费全文 | 7442篇 |
免费 | 190篇 |
专业分类
各国政治 | 436篇 |
工人农民 | 325篇 |
世界政治 | 439篇 |
外交国际关系 | 300篇 |
法律 | 4490篇 |
中国共产党 | 10篇 |
中国政治 | 78篇 |
政治理论 | 1387篇 |
综合类 | 167篇 |
出版年
2020年 | 78篇 |
2019年 | 91篇 |
2018年 | 117篇 |
2017年 | 144篇 |
2016年 | 151篇 |
2015年 | 111篇 |
2014年 | 143篇 |
2013年 | 774篇 |
2012年 | 158篇 |
2011年 | 172篇 |
2010年 | 176篇 |
2009年 | 173篇 |
2008年 | 211篇 |
2007年 | 214篇 |
2006年 | 217篇 |
2005年 | 176篇 |
2004年 | 164篇 |
2003年 | 183篇 |
2002年 | 141篇 |
2001年 | 286篇 |
2000年 | 242篇 |
1999年 | 226篇 |
1998年 | 96篇 |
1997年 | 78篇 |
1996年 | 71篇 |
1995年 | 64篇 |
1994年 | 74篇 |
1993年 | 67篇 |
1992年 | 123篇 |
1991年 | 159篇 |
1990年 | 155篇 |
1989年 | 142篇 |
1988年 | 148篇 |
1987年 | 165篇 |
1986年 | 159篇 |
1985年 | 148篇 |
1984年 | 131篇 |
1983年 | 120篇 |
1982年 | 81篇 |
1981年 | 91篇 |
1980年 | 68篇 |
1979年 | 126篇 |
1978年 | 86篇 |
1977年 | 72篇 |
1976年 | 56篇 |
1975年 | 81篇 |
1974年 | 86篇 |
1973年 | 82篇 |
1972年 | 56篇 |
1971年 | 57篇 |
排序方式: 共有7632条查询结果,搜索用时 445 毫秒
291.
William C. Cockerham Bryant W. Hamby Olena Hankivsky Elizabeth H. Baker Setareh Rouhani 《Communist and Post》2017,50(1):53-63
The ongoing health crisis in the Ukraine has persisted for 48 years with a clear division of gender-based outcomes as seen in the decline of male life expectancy and stagnation of female longevity. The purpose of this paper is to investigate differences in self-rated health and system barriers to health care applicable to gender and its intersections because of the differing negative health outcomes for men and women. Intersectionality theory provides an analytic framework for interpreting our results. Utilizing a nationwide sample of the Ukrainian population (N = 1908), we found that low socioeconomic status (SES) women rate their health worse than men generally and any other socioeconomic group. Yet women also face the greatest barriers to health care until older ages when the ailments of men cause them to likewise face the obstacles. In reviewing the barrier to health care scale, one barrier—that of health care services being too expensive—dominated the responses with some 52.5 percent of the sample reporting it. Consequently, the greatest problem in Ukraine with respect to health reform reported by the population is the out-of-pocket costs for care in a system that is officially free. These costs, constituting some 40 percent of all national health expenditures, affect women and the aged the most. 相似文献
292.
Rachel H. Cunliffe 《Journal of Peace Education》2017,14(2):235-252
Peace education provides for the development of knowledge, skills, and dispositions appropriate to effective peacebuilding. Therefore, the development of curriculum in degree programs which builds bridges by which students in conflict resolution/peace studies classrooms may cross over to the field of conflict transformation and peacebuilding may properly be thought of as within the sphere of peace education. This paper describes an emerging theory of change in the context of the peace education offered by a graduate and undergraduate program of conflict resolution. It is argued that employability exists at the nexus of student skills and attributes, and the demands of a labor market which a partnership between experienced practitioners and academics has a responsibility to inform and shape through outreach, education, practice, evaluation, research, and publication. 相似文献
293.
294.
295.
This article argues that if the introduction of genetically modified crops (GM crops) in developing countries is to be successful, we can and should not evade questions of access and control of technology. It implies probing into the experiences, perceptions and understanding of GM crops by the prime user: the farmer. Exactly in these respects the scholarly literature is remarkably silent. We know little about farmers' experiences and perceptions of GM crops' potential risks and benefits. This is evident when concentrating on a major GM crop – Bt cotton – and studying this in the context of China, its second largest producer in the world. Based on the results of a large survey, we demonstrate that Chinese farmers' awareness (‘having heard of’) and their understanding (‘being able to explain’) of Bt cotton is low. This may lead to ill-informed, distorted risk perceptions and a general inability to relate agricultural production problems to the specific nature of transgenic cotton cultivation. A great majority of the farmers find that the Chinese seed market was liberalised too early, in turn leading to a high incidence of ‘stealth transgenics’ or illegal seeds, the undermining of farmers' trust in private institutions, and a weakened biosafety regime. This finding points to the need for continued state intervention in the seed market, particularly in a developing context. Finally, we have discovered that farmers report a significantly lower reduction in pesticide use by Bt cotton than found in other studies. As suggested by recent research, we suspect that the higher pesticide use is necessary to control secondary pests – i.e. pests other than the cotton bollworm. We present empirical evidence that Chinese farmers perceive a substantive increase in secondary pests after Bt cotton was introduced. 相似文献
296.
297.
Hanne Fjelde Håvard Hegre 《Studies in Comparative International Development (SCID)》2014,49(3):267-299
This article is the first to statistically examine the reciprocal relationship between formal political institutions and political corruption. We argue that political corruption is an informal institution that allows nondemocratic leaders to build political support, act as a substitute for liberalizing concessions in the formal institutions of the state, and thereby extends the longevity of non-democratic regimes. Yet, whereas high corruption level will prevail in nondemocratic regimes, we expect the electoral constituency in democratic regimes to have the formal power to curb political corruption. We demonstrate that these expectations hold by estimating a dynamic multinomial regression model on data for 133 countries for the 1985–2008 period. Our model shows that high-corruption autocracies and hybrid regimes are more stable than their low-corruption counterparts, but that low-corruption democracies are more stable than high-corruption ones. For autocratic and hybrid regimes, the stability is due both to corruption making the formal institutions more resistant to democratization and that the formal institutions prevent reductions in corruption. Consistent democracies, on the other hand, are able to reduce corruption and become more stable as a result. 相似文献
298.
As a time of notably increased stress and a marked rise in depressive symptoms, adolescence is a key period in which to examine how stress is related to mental health outcomes. Many studies examine stress as a unitary construct; however, research suggests that how adolescents respond to stress within different domains may differentially predict depression. The current study used an 8-week weekly diary design to assess how adolescents’ cognitive appraisals, rumination, and co-rumination in response to dependent, independent, social, and nonsocial stressors differentially predicted depressive symptoms. Participants were 111 high school students (72 % female) ages 14–19 years (mean age 16.4). Results indicated that rumination and co-rumination about dependent and social events, rather than independent or nonsocial events, prospectively predicted depressive symptoms. Negative cognitive appraisals prospectively predicted depressive symptoms regardless of domain. This study provides support for the hypothesis that adolescents’ responses to stress in different domains differentially predict depressive symptoms. 相似文献
299.
Sheila K. Marshall Lauree C. Tilton-Weaver Håkan Stattin 《Journal of youth and adolescence》2013,42(8):1234-1242
Previous research has shown a consistent positive association between non-suicidal self-injury and depressive symptoms. However, the direction of the effects has not been examined. To understand whether non-suicidal self-injury predicts depressive symptoms or vice versa, we examined the relations between non-suicidal self-injury and depressive symptoms across three waves of self-report data collected 1 year apart from 506 Swedish adolescents (47 % girls; M age = 13.21; SD = .57) who were attending 7th grade at the onset of the study. The results suggest that depressive symptoms predict increases in non-suicidal self-injury 1 year later between the first and second waves of the study. Between the second and third waves of the study depressive symptoms and non-suicidal self-injury were significantly correlated indicating co-occurrence with no direction of effect rather than depressive symptoms predicting non-suicidal self-injury or vice versa. Group comparisons revealed no differences for boys and girls. The findings help clarify the relationships between non-suicidal self-injury and depressive symptoms during middle adolescence. 相似文献
300.
Rajni L. Nair Rebecca M. B. White Mark W. Roosa Katharine H. Zeiders 《Journal of youth and adolescence》2013,42(10):1611-1623
Studies of stress consistently have linked individuals’ experiences of stress to maladjustment, but limited attention has been given to cultural stressors commonly experienced by minority individuals. To address this, the current study examined the links between cultural stressors and prospective changes in mental health symptoms in a sample of 710 (49 % female) Mexican American youth. In addition, the moderating role of both family and neighborhood cohesion was examined. In-home interviews were completed with youth, mothers (required) and fathers (optional) to collect data on youth’s experiences of cultural stressors (discrimination and language hassles) and internalizing/externalizing behavior, and mothers’ report of family cohesion and mothers’ and fathers’ report of neighborhood cohesion. Analyses revealed that youth’s experiences of discrimination and language hassles at 5th grade were related positively to increases in internalizing symptoms at 7th grade. Additionally, youths who reported higher levels of language hassles in 5th grade experienced increases in externalizing symptoms across the 2-year span. Both family and neighborhood cohesion emerged as significant moderating factors but their impact was conditional on youth’s gender and nativity. Limitations and future implications are discussed. 相似文献