全文获取类型
收费全文 | 11127篇 |
免费 | 358篇 |
专业分类
各国政治 | 600篇 |
工人农民 | 463篇 |
世界政治 | 724篇 |
外交国际关系 | 420篇 |
法律 | 6555篇 |
中国共产党 | 3篇 |
中国政治 | 75篇 |
政治理论 | 2548篇 |
综合类 | 97篇 |
出版年
2020年 | 137篇 |
2019年 | 178篇 |
2018年 | 255篇 |
2017年 | 285篇 |
2016年 | 282篇 |
2015年 | 196篇 |
2014年 | 202篇 |
2013年 | 1344篇 |
2012年 | 267篇 |
2011年 | 280篇 |
2010年 | 246篇 |
2009年 | 266篇 |
2008年 | 321篇 |
2007年 | 277篇 |
2006年 | 325篇 |
2005年 | 290篇 |
2004年 | 306篇 |
2003年 | 271篇 |
2002年 | 275篇 |
2001年 | 312篇 |
2000年 | 306篇 |
1999年 | 228篇 |
1998年 | 170篇 |
1997年 | 156篇 |
1996年 | 139篇 |
1995年 | 151篇 |
1994年 | 135篇 |
1993年 | 151篇 |
1992年 | 212篇 |
1991年 | 231篇 |
1990年 | 218篇 |
1989年 | 223篇 |
1988年 | 201篇 |
1987年 | 218篇 |
1986年 | 214篇 |
1985年 | 199篇 |
1984年 | 196篇 |
1983年 | 197篇 |
1982年 | 129篇 |
1981年 | 110篇 |
1980年 | 99篇 |
1979年 | 117篇 |
1978年 | 103篇 |
1977年 | 96篇 |
1976年 | 80篇 |
1975年 | 73篇 |
1974年 | 87篇 |
1973年 | 90篇 |
1972年 | 74篇 |
1968年 | 62篇 |
排序方式: 共有10000条查询结果,搜索用时 312 毫秒
941.
942.
L F Sparr M E Reaves R M Atkinson 《The Bulletin of the American Academy of Psychiatry and the Law》1987,15(2):141-162
Although data are inconclusive, popular perception has linked military combat, posttraumatic stress disorder (PTSD), and criminal behavior. This paper discusses the multifactorial elements of this association that include both conscious and unconscious parameters of psychologic functioning. Testimony on combat-related PTSD has been presented in the courtroom to support veterans' claims of not guilty by reason of insanity (NGRI) and diminished capacity and for consideration during judicial sentencing. Because there is a known connection between the degree of combat involvement and PTSD, verification through collateral sources of the veteran's report of combat experiences is an important component of forensic assessment. The DSM-III-defined diagnosis of PTSD and the presence of a dissociative state have particular relevance in NGRI determinations. In other aspects of the judicial process demonstration of the absolute presence or absence of PTSD is often irrelevant and should be replaced by efforts to establish plausible links between provable combat experiences and the circumstances of the crime. 相似文献
943.
Joshua Graff Zivin Richard E. Just David Zilberman 《International Review of Law and Economics》2005,25(4):604-623
This paper investigates the performance of liability rules in two-party stochastic externality problems where negotiations are feasible and side payments are based on the realized level of externalities. Results show that an increase in polluter liability does not necessarily increase safety or efficiency in cases where the polluter is risk neutral. Complete polluter liability is found to yield Pareto optimality. When either party is risk averse, an increase in polluter liability may sometimes reduce safety and efficiency. If the polluter is risk neutral and the victim is risk averse, Pareto optimality is only achieved by assigning full liability on the polluter, i.e. giving the victim complete property rights to a clean environment. If the polluter is risk averse and the victim is risk neutral, no level of polluter liability is optimal. In this case, optimality can only be achieved through a contract on abatement activities, such that the risk-averse polluter receives a guaranteed payment regardless of the stochastic outcome. 相似文献
944.
William M. Rivera 《The Journal of Technology Transfer》1991,16(3):29-37
This second of a two-part article on global policy trends in agricultural extension deals with complexity. Policy differs
enormously from country to country. The author believes that, rather than producing confusion and frustration in the field,
the great variety of methodologies, institutional frameworks, and program priorities provides a rich field of ideas for study
and practice. The major position in the article is that extension must be dealt with as part of a total agricultural-development
process rather than an isolated subsystem for transferring technology to farmers. 相似文献
945.
946.
947.
Debates about child custody following parental separation often have been framed in terms of a battle between the competing rights of different family members. In the United States, advocates of mothers’ rights square off against proponents of fathers’ rights, with each side claiming to truly represent children's rights. Of course, not all advocates lay claim to children's rights in contact and custody disputes merely as a tactical maneuver. Some experts believe that children are entitled to (and benefit from) their own, independent legal advocate in custody cases. In theory, at least, the position that children lay claim to a third set of independent rights is strongly held in Europe, more strongly than in many U.S. states, because of the adoption of United Nations Convention on the Rights of the Child in Europe, but not in the United States. In this article, we examine children's rights in custody disputes from a European perspective, particularly children's legal right to contact with their parents, as well as the children's right to be heard in custody and contact disputes. We find that, despite differences in legal theory, tradition, and family demographics, European countries ultimately face a familiar reality: Custody and contact disputes are, in reality, more about renegotiating family relationships than they are a matter of a mother's, father's, or child's rights. 相似文献
948.
Despite the burdens that students and institutions assume when underwriting educational careers, very little is known about
completion rates, risk factors, and successful strategies of criminology/criminal justice (CCJ) graduate programs. Consequently,
the present study tracks 287 master’s and 70 doctoral students who entered the Florida State University CCJ program during
the 1991–2000 academic years. Almost two-thirds of this cohort earned an advanced degree. Younger students with higher GRE
scores were more likely to complete the master’s program. Successful doctoral degree recipients tended to have lower GRE scores,
be non-White, and earn their master’s degrees in-house. In terms of time-to-degree, it took over two years to earn an M.A.
and slightly more than six years to negotiate the Ph.D. Implications are explored for the program, the university, and the
discipline. 相似文献
949.
950.