全文获取类型
收费全文 | 12199篇 |
免费 | 394篇 |
专业分类
各国政治 | 573篇 |
工人农民 | 515篇 |
世界政治 | 721篇 |
外交国际关系 | 379篇 |
法律 | 7894篇 |
中国共产党 | 3篇 |
中国政治 | 90篇 |
政治理论 | 2329篇 |
综合类 | 89篇 |
出版年
2020年 | 154篇 |
2019年 | 191篇 |
2018年 | 268篇 |
2017年 | 306篇 |
2016年 | 292篇 |
2015年 | 212篇 |
2014年 | 223篇 |
2013年 | 1223篇 |
2012年 | 307篇 |
2011年 | 322篇 |
2010年 | 261篇 |
2009年 | 287篇 |
2008年 | 350篇 |
2007年 | 295篇 |
2006年 | 350篇 |
2005年 | 308篇 |
2004年 | 308篇 |
2003年 | 282篇 |
2002年 | 296篇 |
2001年 | 428篇 |
2000年 | 380篇 |
1999年 | 284篇 |
1998年 | 153篇 |
1997年 | 163篇 |
1996年 | 142篇 |
1995年 | 146篇 |
1994年 | 137篇 |
1993年 | 162篇 |
1992年 | 254篇 |
1991年 | 275篇 |
1990年 | 246篇 |
1989年 | 238篇 |
1988年 | 237篇 |
1987年 | 250篇 |
1986年 | 267篇 |
1985年 | 266篇 |
1984年 | 238篇 |
1983年 | 236篇 |
1982年 | 133篇 |
1981年 | 123篇 |
1980年 | 97篇 |
1979年 | 138篇 |
1978年 | 106篇 |
1977年 | 97篇 |
1976年 | 76篇 |
1975年 | 89篇 |
1974年 | 104篇 |
1973年 | 95篇 |
1972年 | 87篇 |
1968年 | 84篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
981.
Robert D. Enright Daniel K. Lapsley Ann E. Drivas Lawrence A. Fehr 《Journal of youth and adolescence》1980,9(6):529-545
Two studies were undertaken to examine parental influences on autonomy and identity development. In Study 1, 262 adolescents in seventh and eleventh grades were given Kurtines's autonomy measure, Simmons's identity measure, and Elder's questions regarding the adolescents' perceptions of their parents' autocratic, democratic, or permissive parenting styles. Study 2 was a replication with 168 subjects. Across both studies it was found that sex-role socialization is more influential for automony development than is either level of parental power or age. Both age and father's use of democracy were the most influential variables on identity development.Received Ph.D. from the University of Minnesota. Major interests are adolescent social cognition and social development.Major interests are adolescent social cognition and social development.Major interests are adolescent social cognition and social development.Received Ph.D. from the University of Cincinnati. Major interests are cognitive development and theories of personality. 相似文献
982.
Starr NJ 《Journal of health law》1999,32(1):115-137
As more Blue Cross/Blue Shield Organizations employ various means to convert to for-profit status, myriad issues arise concerning the proper treatment of assets that were accumulated during the not-for-profit years of such organizations. Moreover, state officials face pressure from all sides to assure that the conversion process is "fair." In the following Article, the author examines the conversion of Blue Cross and Blue Shield of Georgia to demonstrate the various conversion issues that arise under traditional legal principles--as well as the means by which that Blue employed newly enacted legislation to avoid many of the requirements that otherwise would have attended its conversion. 相似文献
983.
The occurrence of pallidal lesions with or without other hypoxic/ischaemic brain injuries was evaluated in 100 intravenous (i.v.) heroin addicts. The brains were collected consecutively from forensic autopsies during the period from January 1995 to June 1996. The autopsies were required by the police and performed at The Institute of Forensic Medicine, The National Hospital, Oslo. There were 21 women and 79 men, median age 32 (range 21-47) and 34 (19-60) years, respectively. Of 38 brains with abnormalities, twenty-five cases showed isolated or combined lesions of hypoxic/ischaemic origin. Pallidal lesions were found in nine brains; six lesions were old, one was subacute (a couple of weeks), and two were part of recent, generalized hypoxia/ischaemia. Six persons had old infarcts in the hippocampal formation, and one of them in combination with old pallidal infarcts. In seven brains small and old infarcts were found in watershed areas in the cerebellum. Between five and ten percent of i.v. heroin addicts might have pallidal infarcts, either as the sole lesion, or combined with other manifestations of hypoxic/ischaemic brain injury. This might give severe mental disturbances in the affected persons. 相似文献
984.
Keefe JE 《Seton Hall law review》1999,30(1):265-272
These remarks are based upon a presentation given at Seton Hall University School of Law's Seventh Annual Health Law Symposium on February 12, 1999. 相似文献
985.
986.
O'Byrne ME 《Journal of law and health》1999,14(1):45-86
This paper examines the legal and strategic issues raised by the use of information systems in health maintenance organizations (HMOs) and other managed care organizations. Given the critical nature of information systems to an HMO's business success and regulatory compliance, the large financial investment HMOs make in their systems, and the widely publicized concerns over the year 2000 "millennium bug" problem, information systems are appropriately a matter of concern to an HMO's board of directors. The recent experience of Oxford Health Plans, Inc. offers a case study in the apparent failure of the directors to monitor adequately the in-house development of an information system. The systems disaster which this corporation suffered in 1997 led to a dramatic drop in stock price, from which the company has yet to recover, as well as intense scrutiny by state and federal regulators and countless shareholder derivative actions against the directors. Corporate directors are subject to the fiduciary duty of care. Despite statutes in some states requiring directors to act prudently, state courts almost always apply the standard of gross negligence. As a result, even when directors act without due deliberation in their decision, it is rare that a court will find them to have failed in their duty of care. The business and regulatory community may find otherwise, however, when directors fail to evaluate information systems options carefully and the business suffers as a result. 相似文献
987.
E S Schechter 《Social security bulletin》1999,62(1):10-22
This article uses the New Beneficiary Data System to describe the first job held after award of Disability Insurance benefits, in terms of occupation and industry. It examines work activity within sectors of employment, and looks at the issues of whether work return in certain industries and occupations varies according to the demographic characteristics of the beneficiaries. The article also presents data on sector-specific employer accommodations that can aid in sustained work return. Postentitlement work was fairly evenly distributed across occupational and industrial sectors. Persons with higher levels of educational attainment were found to be in white-collar employment sectors. There were noticeable differences in the availability of employer accommodations across postentitlement occupations and industries. 相似文献
988.
989.
Diane E. Yoder 《政策研究评论》1999,16(3-4):11-35
990.
Angelika E. Sauer 《澳大利亚政治与历史杂志》1999,45(3):422-439
Immigration policies implemented in the early 1950s by the Menzies government embraced several principles defined by the postwar Labor government, trying to accommodate employers, unions, veterans and ethnic voters within a framework of international considerations. The issue of admitting Germans severely tested the government's ability to reconcile these divergent interests. While anti-communism and established ethnic stereotypes were the undercurrents driving the debate, the practical demands of the Australian labour force, on the one hand, and the memories of the Second World War, on the other, also assumed much prominence in the public rhetoric. This study suggests that despite the existence of a common set of assumptions, both sides in the debate constructed opposing viewpoints to exploit them for partisan purposes. Groups or individuals whose concerns indeed focused on the advantages and disadvantages of admitting German migrants were shunted aside in this essentially political battle. 相似文献