全文获取类型
收费全文 | 159篇 |
免费 | 9篇 |
专业分类
各国政治 | 10篇 |
工人农民 | 1篇 |
世界政治 | 11篇 |
外交国际关系 | 20篇 |
法律 | 50篇 |
中国政治 | 1篇 |
政治理论 | 73篇 |
综合类 | 2篇 |
出版年
2023年 | 1篇 |
2021年 | 2篇 |
2020年 | 3篇 |
2019年 | 2篇 |
2018年 | 9篇 |
2017年 | 5篇 |
2016年 | 10篇 |
2015年 | 5篇 |
2014年 | 5篇 |
2013年 | 21篇 |
2012年 | 7篇 |
2011年 | 3篇 |
2010年 | 4篇 |
2009年 | 3篇 |
2008年 | 7篇 |
2007年 | 8篇 |
2006年 | 3篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 4篇 |
2002年 | 8篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1996年 | 4篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1990年 | 4篇 |
1989年 | 2篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1969年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有168条查询结果,搜索用时 15 毫秒
101.
Joshua P. Darr 《政治交往》2016,33(3):503-522
Today’s campaigns have ample resources with which to influence the media, while plummeting revenue, readership, and reporting staffs make local newspapers more vulnerable than ever. This imbalance raises an important question: if a campaign invests more resources in an area, can it earn positive media coverage? In this article, I propose a strategic relationship between campaigns and local media. Newspapers offer campaigns credibility and exposure, while campaigns offer local newspapers easy-to-report stories that will appeal to their readers. Campaign messages are more impactful when communicated through the local press, so campaigns will try to influence local news coverage (when they have the resources to do so) by establishing a local presence. When newspapers are vulnerable, they should be more likely to accept campaign prompting and provide campaigns with positive earned media. I employ an original data set of newspaper content and campaign investment from the 2004 and 2008 elections. I utilize a within-state matched-pairs design of newspapers from the state of Florida and a detailed content analysis of stories from 21 randomly selected days from each election cycle. I find that regional campaign presence generates positive earned media, but only in smaller newspapers. This article contributes to the fields of campaign and media effects by demonstrating how campaigns’ calculated decisions influence the construction of local political news. It is the first study to describe the connection between the voter contact and campaigns’ earned local media strategy. 相似文献
102.
Comparative Evaluation of Potentially Radiolucent Projectile Components by Radiographs and Computed Tomography
下载免费PDF全文
![点击此处可从《Journal of forensic sciences》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Catherine R. Miller M.D. M.A. Michael Haag B.S. Chandra Gerrard B.S. Gary M. Hatch M.D. Jamie Elifritz M.D. Michael C. Simmons M.D. Sarah Lathrop D.V.M. Ph.D. Kurt B. Nolte M.D. 《Journal of forensic sciences》2016,61(6):1563-1570
Projectile components that are traditionally radiolucent can be of considerable importance in determination of weapon type and caliber, but they are often missed on evaluation of postmortem radiographs. We hypothesized that these components would be significantly better visualized by evaluation of computed tomography (CT) scans compared to the practice standard of radiography alone. In this project, potentially radiolucent projectile components were both pulled apart and fired, and the radiolucent components were recovered. These components were embedded in blocks of ballistics gelatin and were imaged using both radiography and CT. The scans were evaluated by three blinded, board‐certified radiologists for the presence/absence of projectile components and true‐negative regions in each block. If a radiologist indicated visualization of a projectile component, they were further requested to describe their observation. It was found that traditionally radiolucent projectile components are not significantly more often identified on CT scans than radiography (p < 0.05). 相似文献
103.
Abstract: The number of people who cannot be identified at the time of death, sometimes referred to as John or Jane Does, is unknown, and little is known about them as a group. The study's objectives were to estimate the number of annual unidentified deaths, to identify demographic characteristics associated with dying unidentified, to determine whether the rates of such deaths vary geographically or over time, and to better characterize the causes of death. This was a population-based surveillance study of data collected from death certificates from 1979 to 2004 in the U.S. Subjects were selected by the absence of name, date of birth, and Social Security Number on their certificates. Main outcome measures were distributions by age, sex, and underlying cause of death and rates by sex, race, year, and state of death. An average of 413 unidentified persons died each year. The peak year was 1987 with 691 deaths, a rate of 28.5 per 10 million people. The rate declined to 9.7 per 10 million in 2004. Most unidentified decedents were male (80.6%). Unidentified death rates were highest among black people and in the Southwest. Among deaths for which the cause was known, 82.7% were due to injuries. Among injury deaths, 31.8% were homicides. Improvement in identification technology may have reduced rates of unidentified death since the 1980s. In addition, variations in rates of unidentified decedents may reflect changes in risk factors such as homelessness and substance abuse. 相似文献
104.
H. Özden Bademci E. Figen Karadayı İpek Güzide Pur Karabulut Zeynep Kurt Nasir Warfa 《Child & Youth Services》2017,38(4):272-284
Child laborers are typically subjected to multiple and chronic traumatic experiences. With no parents or caregivers to act as a buffer zone against stressors, they grow up in chaotic and unpredictable work environments. Child laborers are more at risk of developing a range of psychological, emotional, and behavioral problems. The authors established an 8-month psychosocial support program for child laborers and young people attending a vocational training center one day a week. The authors found that anxiety and depression moderately correlated with negative self-concept, somatization, and hostility. Toward the end of the 8-month program, participants reported improved psychological and emotional well-being. The provision of a safe and mediated psychosocial program enhanced the emotional and mental well-being of vulnerable children and young people. 相似文献
105.
Kurt Weyland 《国际研究季刊》2000,44(3):481-502
To what extent does a government's success in resolving a deep political and economic crisis strengthen its popular support? The Fujimori administration in Peru, which tackled both profound economic problems and a powerful guerrilla threat, constitutes a useful test case for this important question. Most observers of Peru assume that both Fujimori's success in improving the economy and in combating insurrectionary forces contributed substantially to his high popularity and his reelection victory. Regression analyses of survey and electoral data suggest, however, that the successful counterinsurgency campaign had no significant medium or long-term impact on presidential approval and electoral support. These surprising findings seem to reflect a paradox of success: when a government effectively combats a severe threat, such as rampant guerrilla violence, the salience of the issue diminishes subsequently and people's high appreciation for the president's accomplishment has an ever lower impact on their political attitudes and behavior. 相似文献
106.
This article investigates politicians’ preferences for cutting and spending. The research questions are where do politicians prefer to cut, where do they prefer to spend and how is this influenced by political ideology? These questions are investigated in a large-scale survey experiment fielded to Danish local councillors, who are randomly assigned to a decision-making situation, where the block grant provided to their municipality is either increased or reduced. The results show that the politicians’ preferences for cutting and spending are asymmetric, in the sense that the policy areas, which are assigned the least cuts when the grant is reduced, are rarely the ones which are assigned extra money when the grant is increased. Areas with well-organised interests and a target group which is perceived as deserving are granted more money, whereas policy areas where the target group is perceived as less deserving receive the highest cuts. Ideology matters as left-wing councillors prefer more vague categories when cutting and prioritise childcare and unemployment policies when increasing spending. In contrast, right-wing councillors prefer to cut administration and increase spending on roads. 相似文献
107.
108.
Sarah L. Lathrop DVM PhD Philip W. Wiest MD Sam W. Andrews MD Jamie Elifritz MD Janet P. Price MSA Gary W. Mlady MD Ross E. Zumwalt MD Chandra Y. Gerrard MPH Valerie L. Poland BA Kurt B. Nolte MD 《Journal of forensic sciences》2023,68(2):524-535
Postmortem computed tomography (PMCT) has been integrated into the practice of many forensic pathologists. To evaluate the utility of PMCT in supplementing and/or supplanting medicolegal autopsy, we conducted a prospective double-blind comparison of abnormal findings reported by the autopsy pathologist with those reported by a radiologist reviewing the PMCT. We reviewed 890 cases: 167 with blunt force injury (BFI), 63 with pediatric trauma (under 5 years), 203 firearm injuries, and 457 drug poisoning deaths. Autopsy and radiology reports were coded using the Abbreviated Injury Scale and abnormal findings and cause of death (COD) were compared for congruence in consensus conferences with novel pathologists and radiologists. Overall sensitivity for recognizing abnormal findings was 71% for PMCT and 74.6% for autopsy. Sensitivities for PMCT/autopsy were 74%/73.1% for BFI, 61.5%/71.4% for pediatric trauma, 84.9%/83.7% for firearm injuries, and 56.5%/66.4% for drug poisoning deaths. COD assigned by reviewing PMCT/autopsy was correct in 88%/95.8% of BFI cases, 99%/99.5% of firearm fatalities, 82.5%/98.5% of pediatric trauma deaths, and 84%/100% of drug poisoning deaths of individuals younger than 50. Both autopsy and PMCT were imperfect in recognizing injuries. However, both methods identified the most important findings and are sufficient to establish COD in cases of BFI, pediatric trauma, firearm injuries and drug poisoning in individuals younger than 50. Ideally, all forensic pathologists would have access to a CT scanner and a consulting radiologist. This would allow a flexible approach that meets the diagnostic needs of each case and best serves decedents' families and other stakeholders. 相似文献
109.
110.
This article questions existing performing arts market segmentation practices in the United States, probing for examples of unintended exclusion and discrimination. The author critiques specific performing arts marketing scholarship and the segmentation practices that stem from it. Future growth of the performing arts industry's audiences may rest on the ability to define their composition more broadly, to be more inclusive rather than exclusive. At the same time, marketing theory, research, and practice may need to be specifically developed to meet the needs of both the performing arts industries and their audiences. 相似文献