全文获取类型
收费全文 | 1285篇 |
免费 | 52篇 |
专业分类
各国政治 | 45篇 |
工人农民 | 256篇 |
世界政治 | 98篇 |
外交国际关系 | 77篇 |
法律 | 582篇 |
中国政治 | 20篇 |
政治理论 | 249篇 |
综合类 | 10篇 |
出版年
2023年 | 4篇 |
2022年 | 4篇 |
2021年 | 6篇 |
2020年 | 24篇 |
2019年 | 29篇 |
2018年 | 46篇 |
2017年 | 46篇 |
2016年 | 36篇 |
2015年 | 41篇 |
2014年 | 36篇 |
2013年 | 174篇 |
2012年 | 31篇 |
2011年 | 38篇 |
2010年 | 33篇 |
2009年 | 42篇 |
2008年 | 45篇 |
2007年 | 49篇 |
2006年 | 41篇 |
2005年 | 48篇 |
2004年 | 62篇 |
2003年 | 44篇 |
2002年 | 45篇 |
2001年 | 23篇 |
2000年 | 25篇 |
1999年 | 16篇 |
1998年 | 13篇 |
1997年 | 28篇 |
1996年 | 32篇 |
1995年 | 16篇 |
1994年 | 25篇 |
1993年 | 20篇 |
1992年 | 28篇 |
1991年 | 23篇 |
1990年 | 18篇 |
1989年 | 14篇 |
1988年 | 13篇 |
1987年 | 8篇 |
1986年 | 15篇 |
1985年 | 12篇 |
1984年 | 9篇 |
1983年 | 11篇 |
1982年 | 11篇 |
1981年 | 11篇 |
1980年 | 6篇 |
1979年 | 5篇 |
1978年 | 7篇 |
1977年 | 7篇 |
1976年 | 5篇 |
1975年 | 3篇 |
1974年 | 4篇 |
排序方式: 共有1337条查询结果,搜索用时 31 毫秒
901.
Lardon C Soule S Kernak D Lupie H 《Journal of prevention & intervention in the community》2011,39(1):65-76
Health promotion aims to support people in their efforts to increase control over factors that impact health and well-being. This emphasis on empowerment and contextual influences allows for a more holistic conceptualization of health and approaches to promoting health that are anchored in principles of community development and systems change. Piciryaratgun Calritllerkaq (Healthy Living Through A Healthy Lifestyle) is a collaboration between a Yup'ik village in rural Alaska and researchers from the University of Alaska Fairbanks. The goal was to improve nutrition, increase exercise, and decrease stress. The project utilized elements of organization development and strategic planning to develop a local infrastructure and process and to promote local expertise. The project team developed goals, objectives, action, and evaluation plans that integrated local traditions, Yup'ik culture, and research. 相似文献
902.
There is a growing recognition in the field of e‐government that improving the quality and impact of research requires taking into account their complex contexts and drawing on more interdisciplinary and collaborative research. Limited attention so far has been directed toward the conduct of such research, particularly in contract‐based research arrangements for developing e‐government policy. A four‐nation study of public e‐procurement policy is used here to make transparent the process of designing and conducting transdisciplinary and interactive research. Further sharing of research designs and accounts is needed to advance theory, policy, and practice, and to develop a history of ideas in the e‐government research field. 相似文献
903.
Priming is often mentioned in studies of media effects in Britain, yet empirical tests of its extent and nature are lacking; most evidence of priming effects is from the United States. Moreover, research on British elections concludes that the media have little impact on the public’s perceptions of issues, including in the 2005 election. In this paper we argue that priming by the British media has been misconceived and thus not studied adequately. We demonstrate that the issue of the war in Iraq was primed by media coverage in 2005, both as a consequence of the volume of coverage of the issue and its tone. The influence of Iraq was not just long-term, via its impact on confidence in the Labour government or Tony Blair’s reputation, but was also affected by media coverage during the campaign. We also demonstrate that the media’s coverage of Iraq in 2005 influenced voters’ evaluations of Blair by polarizing consumers of the same news. Finally, we find slightly more of an impact of the tone of coverage of Iraq in 2005 but it is moderated by the editorial stance of the newspaper—the editorial stance of British newspapers still seems to matter, suggesting that the dealignment of the British press has not eliminated the influence of reading a newspaper that endorses a party, no matter how qualified that endorsement may be. 相似文献
904.
Schwartz SJ Beyers W Luyckx K Soenens B Zamboanga BL Forthun LF Hardy SA Vazsonyi AT Ham LS Kim SY Whitbourne SK Waterman AS 《Journal of youth and adolescence》2011,40(7):839-859
Identity is a critical developmental task during the transition to adulthood in Western societies. The purpose of the present study was to evaluate an empirically based, cluster-analytic identity status model, to examine whether all four of Marcia's identity statuses (diffusion, foreclosure, moratorium, and achievement) would emerge empirically, and to identify different patterns of identity formation among American college-attending emerging adults. An ethnically diverse sample of 9,034 emerging-adult students (73% female; mean age 19.73?years) from 30 U.S. universities completed measures of identity exploration (ruminative, in breadth, and in depth) and commitment (commitment making and identification with commitment), identity synthesis and confusion, positive and negative psychosocial functioning, and health-compromising behaviors. The identity status cluster solution that emerged provided an adequate fit to the data and included all four of Marcia's original identity statuses, along with Carefree Diffusion and Undifferentiated statuses. Results provided evidence for concurrent validity, construct validity, and practical applicability of these statuses. Implications for identity research are discussed. 相似文献
905.
Political risk frequently impedes the flow of capital into developing countries. In response, governments often adopt innovative
institutions that aim to attract greater flows of international investment and trade by changing the institutional environment
and limiting the risk to outside investors. One primary example of this is the Bilateral Investment Treaty (BIT), aimed specifically
at increasing the flow of foreign direct investment (FDI) to developing countries. Yet the literature in political science
and economics is inconclusive about whether or not BITs do indeed stimulate FDI, and it provides conflicting theoretical reasoning
for the claimed connection. This article argues that BITs do attract FDI to developing countries, but the story is a complicated
one. Two important factors must be taken into account. First, BITs cannot entirely substitute for an otherwise weak investment
environment. Countries must have the necessary domestic institutions in place that interact with BITs to make these international
commitments credible and valuable to investors. Second, as the coverage of BITs increases, overall FDI flows to developing
countries increase. However, although remaining positive, the marginal effect of a country’s BITs on its own FDI may fall
because of heightened competition for FDI from other BIT countries. Using data from 97 countries for 1984–2007, we provide
empirical evidence consistent with both of these theoretical claims. 相似文献
906.
Missotten LC Luyckx K Branje S Vanhalst J Goossens L 《Journal of youth and adolescence》2011,40(8):972-982
Adolescent identity and parent–adolescent conflict have each attracted considerable research interest. However, few studies
have examined the important link between the two constructs. The present study examined the associations between adolescent
identity processing styles and adolescent conflict resolution styles in the mother–adolescent dyad. Questionnaires about conflict
frequency and resolution were completed by 796 adolescents (66% female, mostly Caucasian) and their mothers. Adolescents also
completed a measure on identity styles. Each identity style was hypothesized to relate to a specific conflict resolution behavior.
Hierarchical regression analyses showed that the information-oriented identity style was positively associated with positive
problem solving and negatively with conflict engagement and withdrawal, the normative style was positively associated with
compliance, and, finally, the diffuse-avoidant style was positively associated with withdrawal and conflict engagement and
negatively with positive problem solving. Our results demonstrated that the way in which adolescents tackle identity-relevant
issues is related to the way in which they deal with conflicts with their mothers. Implications and suggestions for future
research are discussed. 相似文献
907.
Abstract: A 15‐year‐old male orally consumed an unknown but fatal amount of sustained release hydromorphone. He was naïve to opioid use. No other drugs or alcohol were involved. The cause of death was acute aspiration‐related bronchopneumonia, secondary to hydromorphone ingestion; the manner of death was accidental. Hydromorphone and hydromorphone‐3‐glucuronide were quantified in postmortem fluids by tandem liquid chromatography–mass spectrometry. The hydromorphone concentrations in the peripheral blood, urine, and vitreous humor were 57, 4460, and 31 ng/mL, respectively. The hydromorphone‐3‐glucuronide concentrations in the corresponding three fluids were 459, 36,400, and 40 ng/mL. Hydromorphone‐3‐glucuronide accumulation probably did not contribute significantly to the opiate toxicity. The proposed minimum lethal hydromorphone blood concentration in the nontolerant user is in the vicinity of 60 ng/mL. 相似文献
908.
Susan H. Horwitz Despina Mitchell Michelle LaRussa-Trott Lizette Santiago Joan Pearson David M. Skiff Catherine Cerulli 《Journal of family violence》2011,26(8):617-625
Since the recognition of domestic violence (DV) in the late 1970s, police officers have been frontline providers. Despite their changing role as a result of the criminalization of DV, little is known about their experiences and responses to this public health issue from their unique perspective. Via focus groups, 22 police officers discussed their scope of practice and emotional reactions to DV calls. Participants reported frustration with the recurring nature of DV and with the larger systems?? lack of accountability (e.g., courts, prosecution and community) that follow their initial interventions. Participants discussed the limitations of their role as protectors of public safety, attitudes that evolve over time and their beliefs as to contributing factors that perpetuate DV. Additionally, the officers recommend: more professional training, counseling, incident debriefing for officers including feedback on case disposition, better collaboration across professional groups, and evidence-based prosecution. Harsher penalties were also recommended. 相似文献
909.
In recent years, the analysis of trace amounts of DNA has become a necessary and useful forensic tool. DNA profiles can be obtained from items that have been worn or handled, due to the presence of transferred DNA derived from skin cells. Shoeprints collected from crime scenes that match a suspects shoe can link a shoe to the crime scene. A DNA profile from inside the shoe can link a wearer to a shoe thus increasing the evidential value of the forensic evidence. In this work, variation in the amount of DNA recovered from hands and feet of different individuals is investigated. Sites for sampling DNA from shoe insoles are compared and a protocol for the subsequent sampling and extraction is developed. Finally, a case study is described where DNA analysis of shoe insoles has provided forensic evidence. 相似文献
910.
Julie S. Cinamon Robert T. Muller Susan E. Rosenkranz 《Journal of family violence》2014,29(7):725-737
The goal of the current study was to evaluate the extent to which abuse history predicted change in treatment in an inpatient setting. Poly-victimization and trauma severity were examined as predictors of treatment response measured by the Trauma Symptom Checklist-40 and the Symptom Checklist-90-R at admission, discharge, and 6-months follow-up. Data from 161 clients of an inpatient trauma treatment program were analyzed using structural equation modeling. Results indicate that level of poly-victimization predicted treatment response from admission to discharge on two of four outcome variables; however, this relationship was not found at follow-up. Further analyses suggest that the difference in treatment response at discharge among clients with higher rates of poly-victimization was an artifact of scores at admission. Trauma severity analyses reveal that differing types of abusive experiences generally did not predict treatment response. Overall, results demonstrate that this inpatient treatment program is similarly effective for a broad array of patients, including those with a greater number, and higher severity, of victimizations. 相似文献