全文获取类型
收费全文 | 936篇 |
免费 | 32篇 |
专业分类
各国政治 | 55篇 |
工人农民 | 21篇 |
世界政治 | 76篇 |
外交国际关系 | 36篇 |
法律 | 425篇 |
中国政治 | 5篇 |
政治理论 | 340篇 |
综合类 | 10篇 |
出版年
2021年 | 6篇 |
2020年 | 19篇 |
2019年 | 12篇 |
2018年 | 19篇 |
2017年 | 23篇 |
2016年 | 25篇 |
2015年 | 13篇 |
2014年 | 21篇 |
2013年 | 141篇 |
2012年 | 31篇 |
2011年 | 27篇 |
2010年 | 18篇 |
2009年 | 26篇 |
2008年 | 28篇 |
2007年 | 43篇 |
2006年 | 24篇 |
2005年 | 20篇 |
2004年 | 34篇 |
2003年 | 32篇 |
2002年 | 22篇 |
2001年 | 15篇 |
2000年 | 28篇 |
1999年 | 15篇 |
1998年 | 12篇 |
1997年 | 15篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 12篇 |
1993年 | 15篇 |
1992年 | 15篇 |
1991年 | 16篇 |
1990年 | 22篇 |
1989年 | 13篇 |
1988年 | 14篇 |
1987年 | 10篇 |
1986年 | 12篇 |
1985年 | 15篇 |
1984年 | 11篇 |
1983年 | 9篇 |
1982年 | 6篇 |
1980年 | 10篇 |
1979年 | 8篇 |
1978年 | 12篇 |
1976年 | 6篇 |
1975年 | 11篇 |
1974年 | 6篇 |
1973年 | 5篇 |
1969年 | 5篇 |
1968年 | 6篇 |
1966年 | 5篇 |
排序方式: 共有968条查询结果,搜索用时 15 毫秒
51.
Although there have been several studies of women in legislatures in Canada, a cabinet position is a much stronger position from which to wield power in an executive-centered and party-disciplined parliamentary system. In the past decade, the increase of women's share of legislative seats, for majority parties as well as others, has led to more women being appointed to cabinet portfolios. This article utilizes data from the ten Canadian provinces over an 18-year period, from 1976 to 1994, to assess patterns of such appointments by province, party, percentage of women in the governing party, and percentage of women in the legislature. The proportion of women in the governing party far outweighs other variables in its impact on the percentage of women in the cabinet, in contrast to a previous study of West European cabinets which found that more women in the legislature was of greater importance. Although a high level of multicollinearity indicates caution in attempting to distinguish between the impact of these two variables, the differences in these studies may be due to Canadian provinces having single-party majority governments while West European cabinets are often coalitions. 相似文献
52.
Gary Johns 《澳大利亚政治与历史杂志》2000,46(2):284-287
Book reviewed in this article:
Neal Blewett, A Cabinet Diary: A Personal Record of the First Keating Government 相似文献
Neal Blewett, A Cabinet Diary: A Personal Record of the First Keating Government 相似文献
53.
54.
55.
56.
57.
58.
Because of difficulties collecting sales taxes on Internet sales, several states have engaged in an effort (the Streamlined Sales Tax Project, SSTP) to simplify their sales tax systems. One hope among SSTP proponents is that a simplified system will result in Internet vendors voluntarily collecting the sales tax. We address two issues:
- ? Will states adopt the extensive reforms proposed by the SSTP?
- ? Will vendors voluntarily collect the sales tax?
59.
Weight force during prone restraint and respiratory function 总被引:1,自引:0,他引:1
Chan TC Neuman T Clausen J Eisele J Vilke GM 《The American journal of forensic medicine and pathology》2004,25(3):185-189
Prone maximal restraint position (PMRP, also known as hogtie or hobble) is often used by law enforcement and prehospital personnel on violent combative individuals in the field setting. Weight force is often applied to the restrained individual's back and torso during the restraint process. We sought to determine the effect of 25 and 50 lbs weight force on respiratory function in human subject volunteers placed in the PMRP. We performed a randomized, cross-over, controlled trial on 10 subjects placed in 4 positions for 5 minutes each: sitting, PRMP, PRMP with 25 lbs weight force (PMRP+25), and PRMP with 50 lbs weight force placed on the back (PMRP+50). We measure pulse oximetry, end-tidal CO2 levels, and forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1). FVC and FEV1 were significantly lower in all restraint positions compared with sitting but not significantly different between restraint positions with and without weight force. Moreover, mean oxygen saturation levels were above 95% and mean end-tidal CO2 levels were below 45 mm Hg for all positions. We conclude that PMRP with and without 25 and 50 lbs of weight force resulted in a restrictive pulmonary function pattern but no evidence of hypoxia or hypoventilation. 相似文献
60.
Armstrong EJ Jenkins AJ Sebrosky GF Balraj EK 《The American journal of forensic medicine and pathology》2004,25(4):338-341
An unusual fatality secondary to oxycodone in a child is reported. A 2-year-old female child was conveyed to a local hospital after exhibiting signs of rubbing of the mouth and staggering. A hospital toxicological immunoassay screen for drugs of abuse and tricyclic antidepressants was performed on a urine sample and reported as negative. She was discharged and found unresponsive the next morning. She was conveyed to a second hospital in full cardiopulmonary arrest and despite resuscitative efforts, was pronounced dead upon arrival. An autopsy was performed and postmortem specimens were submitted and screened for drugs using mainly chromatographic techniques. Quantitation was achieved by gas chromatography with nitrogen phosphorus detection. Confirmation was performed by gas chromatography/mass spectrometry. Oxycodone was the only drug detected in the following concentrations: heart blood, 1.36 mg/L; gastric contents, 7.33 mg in 33 mL (222.34 mg/L); liver, 0.2 mg/kg; and urine, 47.23 mg/L (47,230 ng/mL). In addition, immunoassay testing of the urine was positive for the opiate class of drugs. This case report demonstrates an unusual cause of death in a young child with emphasis on potential limitation in hospital urine screening tests and the importance of complete forensic toxicological testing in all child deaths. 相似文献