全文获取类型
收费全文 | 18094篇 |
免费 | 1367篇 |
专业分类
各国政治 | 758篇 |
工人农民 | 551篇 |
世界政治 | 1262篇 |
外交国际关系 | 552篇 |
法律 | 12929篇 |
中国共产党 | 2篇 |
中国政治 | 100篇 |
政治理论 | 3148篇 |
综合类 | 159篇 |
出版年
2020年 | 384篇 |
2019年 | 412篇 |
2018年 | 491篇 |
2017年 | 558篇 |
2016年 | 594篇 |
2015年 | 518篇 |
2014年 | 527篇 |
2013年 | 1872篇 |
2012年 | 455篇 |
2011年 | 526篇 |
2010年 | 657篇 |
2009年 | 609篇 |
2008年 | 456篇 |
2007年 | 402篇 |
2006年 | 509篇 |
2005年 | 373篇 |
2004年 | 363篇 |
2003年 | 363篇 |
2002年 | 347篇 |
2001年 | 688篇 |
2000年 | 590篇 |
1999年 | 485篇 |
1998年 | 217篇 |
1997年 | 225篇 |
1996年 | 176篇 |
1995年 | 206篇 |
1994年 | 226篇 |
1993年 | 191篇 |
1992年 | 357篇 |
1991年 | 388篇 |
1990年 | 348篇 |
1989年 | 377篇 |
1988年 | 335篇 |
1987年 | 306篇 |
1986年 | 350篇 |
1985年 | 339篇 |
1984年 | 332篇 |
1983年 | 306篇 |
1982年 | 218篇 |
1981年 | 200篇 |
1980年 | 180篇 |
1979年 | 249篇 |
1978年 | 152篇 |
1977年 | 134篇 |
1976年 | 120篇 |
1975年 | 132篇 |
1974年 | 147篇 |
1973年 | 131篇 |
1972年 | 116篇 |
1971年 | 110篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
Ministerialrat a. D. Prof. Dr. Ernst-Rainer Hönes 《Natur und Recht》2005,27(5):279-285
Der Begriff der Landeskultur umfasst alle Maßnahmen zur Verbesserung der land- und forstwirtschaftlichen Nutzung des Bodens einschließlich der Erhaltung der Kulturlandschaft. Landeskultur ist somit alles Planen und Handeln mit dem Ziel, die Umwelt als gegebenes Naturraumpotential, insbesondere Wasser, Boden, Luft und die dazugehörigen Natur-, Kultur- und Sachgüter optimal zu erhalten, gestalten und rationell zu nutzen sowie dieses Potential mit bestmöglicher Qualität als natürliche und kulturelle Lebensgrundlage für die Allgemeinheit nachhaltig zu sichern. Landeskultur dient somit auch der Belebung und Werterhöhung der gebauten und gepflanzten Umwelt. Dies schließt auch und gerade die kulturelle Seite einschließlich Kulturlandschaften mit ein. Dabei ist es bis zur Überprüfung durch das BVerfG noch hinnehmbar, dass der Begriff „Landeskultur“ in Art. 89 Abs. 3 GG wegen der Mischkompetenz von Bund und Land vom BVerwG enger ausgelegt wird als in anderen Rechtsvorschriften. 相似文献
112.
Toxicologic findings in the USS Iowa disaster. 总被引:5,自引:0,他引:5
The toxicologic results from the 47 victims of the explosion on the USS Iowa are presented. Good correlation between carboxyhemoglobin saturations and cause of death was found. There were no correlations between blood cyanide concentrations and causes of death. Volatile analysis suggested postmortem ethanol production rather than antemortem ethanol ingestion. No drugs except nicotine were detected in any of the victims. 相似文献
113.
B G Rabe 《Journal of health politics, policy and law》1992,17(1):119-142
Hazardous waste management poses increasing problems for Canadian provinces and American states, given the vast quantities and types of wastes generated and the virtual inability to open new storage, treatment, or disposal facilities. The Canadian experience is very similar to the American one in many respects, except for the fact that three provinces (Alberta, Manitoba, and Quebec) have devised alternative approaches to siting that appear successful in moving beyond the political gridlock so common on this issue. In each of these cases, traditional, top-down approaches to siting have been eschewed in favor of a more comprehensive approach that includes extensive public participation, economic and social compensation packages, formal partnerships between public and private organizations, and direct links between siting proposals and other aspects of waste management, including waste reduction, recycling, and export/import control. 相似文献
114.
Washington University v. Catalona revolves around ownership of tissue samples provided by patients for research purposes, raising significant ethical and legal questions concerning patient rights, current human research practices, and the treatment of samples as capital resources by the research institution. 相似文献
115.
Here we consider two ways that nanomedicine might be disruptive. First, low-end disruptions that are intrinsically unpredictable but limited in scope, and second, high end disruptions that involve broader societal issues but can be anticipated, allowing opportunity for ethical reflection. 相似文献
116.
This synoptic article focuses on the origin and functioning of the Office of the Family Advocate as the protector of the interests of minor children in divorce cases. Attention is paid to the general contemporary trend to specialise in judicial decision-making that developed out of an increasing need for expertise in the administration of justice. A number of arguments for and against judicial specialisation are addressed. The origin of the Office of the Family Advocate within the South African judicial system is discussed and a brief exposition of the history of divorce legislation in South Africa is given. This is followed by attention to the functioning of the Office of the Family Advocate with reference to the process followed in investigations of this office and points of criticism against the system are highlighted. The article closes with an indication of the need for research in this regard and possible focus points for future research are identified. 相似文献
117.
The increased risk of child maltreatment in the presence of domestic violence is well documented, but much remains unknown about factors that modify this relationship. This study investigates the roles of risk and protective factors in the relationship between domestic violence and being reported to the Department of Social Services for child maltreatment. Consistent with the literature, we find a significant overlap between domestic violence and maltreatment. Young maternal age, low education, low income, and lack of involvement in a religious community add to the risk for maltreatment associated with domestic violence. Separation between the maternal caregiver and her partner significantly reduces the risk for maltreatment when domestic violence is reported. A significant reduction in the risk for maltreatment is also found with higher levels of support from the maternal caregiver reported by the child in the context of domestic violence. 相似文献
118.
We consider the problem of drawing inferences within a legal framework when a person is a suspect for two separate offences. Although we are primarily concerned with scientific evidence the issue inevitably arises as to how that evidence interacts with other, non-scientific evidence. We show that, in this particular context, the evidence can be conveniently classified into three categories that concern, respectively: the first crime only; the second crime only; and evidence that relates to similarities between the two crimes. Two case examples are considered and we consider DNA, fibres and eyewitness evidence. These are viewed from the perspective of a prosecutor who has to decide whether or not to charge a suspect with one or both crimes. Graphical sensivity analyses are presented which have features that are not intuitively obvious. 相似文献
119.
120.
Interjurisdictional Competition and Regulatory Advantage 总被引:1,自引:0,他引:1
As formal trade and investment barriers fall, government regulations what once were domestic policy matters becomeissues of international concern. International commerce createsthe potential for competition among regulatory jurisdictions.This article explains why there is variation in these regulatorytrends. Three general trajectories are: (a) convergenceamong countries toward less stringent regulations in some cases,(b) convergence toward more stringent regulations in others,while in still other cases (c) differences persist among countries.I offer three (related) propositions which explain the differentregulatory trajectories: #1) Regulations on production processestend toward laxity; whereas product market-access regulationstend toward stringency. #2) Industrial structure affects thestrength of the process/market-access distinction. Powerfulfirms in concentrated markets facilitate collective action andregulatory capture. Dominant producers push for process andmarket-access regulations which reflect their interests, givingthem a competitive regulatory advantage in world markets. #3)The asset specificity of investments affects regulatory convergence.Low asset specificity leads to a competition-in-laxity; highmultinational asset specificity leads to convergence among jurisdictions(as firms seek to lower their transaction costs); and domesticasset specificity leads to differences among jurisdictions.Detailed case studies (on offshore banking, capital requirements,and infant formula) suggest the propositions are necessary tounderstand general outcomes, although not sufficient to fullyexplain individual cases. 相似文献