全文获取类型
收费全文 | 14545篇 |
免费 | 695篇 |
专业分类
各国政治 | 616篇 |
工人农民 | 520篇 |
世界政治 | 1111篇 |
外交国际关系 | 420篇 |
法律 | 9521篇 |
中国共产党 | 2篇 |
中国政治 | 79篇 |
政治理论 | 2900篇 |
综合类 | 71篇 |
出版年
2020年 | 229篇 |
2019年 | 283篇 |
2018年 | 300篇 |
2017年 | 378篇 |
2016年 | 385篇 |
2015年 | 319篇 |
2014年 | 337篇 |
2013年 | 1417篇 |
2012年 | 343篇 |
2011年 | 396篇 |
2010年 | 368篇 |
2009年 | 373篇 |
2008年 | 396篇 |
2007年 | 372篇 |
2006年 | 383篇 |
2005年 | 356篇 |
2004年 | 355篇 |
2003年 | 339篇 |
2002年 | 335篇 |
2001年 | 620篇 |
2000年 | 561篇 |
1999年 | 399篇 |
1998年 | 241篇 |
1997年 | 196篇 |
1996年 | 160篇 |
1995年 | 165篇 |
1994年 | 186篇 |
1993年 | 175篇 |
1992年 | 276篇 |
1991年 | 289篇 |
1990年 | 293篇 |
1989年 | 291篇 |
1988年 | 279篇 |
1987年 | 266篇 |
1986年 | 328篇 |
1985年 | 300篇 |
1984年 | 227篇 |
1983年 | 241篇 |
1982年 | 157篇 |
1981年 | 164篇 |
1980年 | 123篇 |
1979年 | 168篇 |
1978年 | 128篇 |
1977年 | 105篇 |
1976年 | 100篇 |
1975年 | 80篇 |
1974年 | 129篇 |
1973年 | 115篇 |
1972年 | 106篇 |
1969年 | 82篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Current structure of pancreatic traumas of peace time is considered. The dynamics, mechanism and characteristics of pancreastic injury are described. Surgical treatment of pancreatic injuries and causes of their inadequate management are analysed. This will contribute to improvement of the quality of treatment of pancreatic injuries and of expert evaluation. 相似文献
992.
The experimental material has shown possibility of definition of shooting distance and some technical characteristics of the barrel of the pneumatic gun loaded with shots. 相似文献
993.
By potential damage, chemical terroristic attacks are much more dangerous than terroristic bombing. To fight chemical terrorism it is necessary to create the system of medical-environmental defense of the population. In line with emergency medicine, forensic medical service is a very important element of the antiterroristic defense. The activity of forensic-medical experts in the field of terroristic chemical attack is analysed. 相似文献
994.
Some causes of ineffective dental care because of the patient's negligence were analyzed. In 16 cases the patients ignored recommendations of the dentist and missed visits to the doctor. As a result, the patients developed complications leading to esthetic dissatisfaction, prolonged treatment, repeated prosthetic management. 相似文献
995.
996.
Although representative payeeship is prevalent among people with mental illness and shows promise to positively influence
clinically relevant outcomes, research also suggests this legal mechanism could be implemented in ways that are problematic.
The current study examined whether family representative payeeship was associated with elevated risk of family violence perpetrated
by persons with severe mental illness (SMI). Data were collected every 4 months for 1 year in structured interviews with N
= 245 persons with SMI who received disability benefits. Multivariate analyses showed that substance abuse, history of violence,
frequency of family contact, and family representative payeeship were associated with elevated odds of family violence. Analyses
also showed family contact and family representative payeeship had a cumulative effect on increasing the predicted probability
of family violence (controlling for covariates such as violence history and substance abuse). The data shed light on the potential
for family representative payeeship to be associated with increased risk of interpersonal conflict and violence in SMI. 相似文献
997.
The Decline and Decay of European Refugee Policy 总被引:1,自引:0,他引:1
This article challenges the view, implicit in much current researchon EU migration and asylum policy, that supranationalizationis a self-evident antidote to the exclusionary and securitizedmigration policy that has been enacted through inter-governmentalcooperation. It does so by treating supranationalization asan open question in need of empirical scrutiny. To develop thisthesis, it undertakes not only a critique of the current developmentstowards supranational policies, but also of the inter-governmentalpolicy-making system, pursuing a broad brush historical assessmentup to and beyond Amsterdam, with the aim of bringing fresh andfurther insights into the future development of EU asylum policy.It concludes that the current aims are less to do with the establishmentof a common European asylum system and more to do with reducingimmigration pressure and compensating for the perceived lossesof internal security in the wake of full freedom of movementinside the Union. Communitarization will not necessarily occursimply because the European Union is intent upon institutingever stricter immigration controls. Communitarization is doggedby the legacy of intensive trans-governmentalism. In particular,the British, Danish and Irish governments have only been preparedto support communitarization so long as they could have separateprotocols that legitimized their non-participation. The UK andIreland have opted into all proposals on asylum, illegal migrationand civil law but have opted out of practically all proposalsconcerning visas, borders, and legal migration. The securitarianframe still predominates and trans-governmentalism refuses todie. In January 2005, following the agreement on The Hague programme,there was change in decision-making rules from unanimous votingto Qualified Majority Vote (QMV) in the European Council andco-decision with the European Parliament. Yet, there is no guaranteethis will bring about more liberal asylum rules, as is clearfrom the Schengen Borders Code which was agreedin June 2005. This is because European migration policy hasalways been fraught with internal contradictions, which haveyet to be resolved. Accordingly, the emergence of a rights-respectingmodel of asylum law based on the Geneva Convention 1951 remainsa distant dream. 相似文献
998.
U.S. Office of Personnel Management 《Federal register》2005,70(104):31389-31392
The U.S. Office of Personnel Management (OPM) is issuing a final regulation amending the Federal Employees Health Benefits (FEHB) Acquisition Regulation (FEHBAR). This regulation provides additional contract cost principles and procedures for FEHB Program experience-rated contracts and is intended to clarify our requirements and enhance our oversight of FEHB carriers. 相似文献
999.
A coffee can, factor analysis, and prediction of antisocial behavior: the structure of criminal risk
The predictive accuracy of the Psychopathy Checklist-Revised, Level of Service Inventory-Revised, Violence Risk Appraisal Guide, and the General Statistical Information on Recidivism were compared to four instruments randomly generated from the total pool of original items. None of the four original instruments better predicted post-release failure than the four randomly generated instruments. These results suggest two conclusions: (a) the instruments are only measuring criminal risk, and (b) no single instrument has captured sufficient risk assessment theory to result in better prediction than randomly derived instruments measuring criminal risk. A two-stage factor analysis was completed on 1614 cases. This analysis of the risk items indicated a 4-factor solution and all 4 factors were equal to the original instruments in predicting post-release failure. Thus, the original instruments did not improve prediction over randomly structured scales, nor did the restructuring of items improve risk assessment, suggesting substantial deficiencies in the conceptualization of risk assessment and instrumentation. We argue that developing a risk-based construct, which involves hypothesis testing and an explanation of behavior, is the optimal method to advance risk assessment within the criminal justice and mental health systems. Such an approach would provide targeted areas for clinical intervention that are salient to risk. 相似文献
1000.
This study reports on the reduction in violent offending in a population of serious and violent juvenile offenders following an intensive institutional treatment program. The treatment group (N=101) is compared to a similar group that was assessed but not treated (N=147). All youth were sent to the program from a juvenile corrections institution where they had received the customary rehabilitation services. The results show a significant reduction in the prevalence of recidivism in the treated group after controlling for time at risk in the community and other covariates. The effects of non-random group assignment were reduced by including a propensity score analysis procedure in the outcome analysis. Untreated comparison youth appeared to be about twice as likely to commit violent offenses as were treated youth (44% vs. 23%). Similarly, treated youth had significantly lower hazard ratios for recidivism in the in the community than the comparison youth, even after accounting for the effects of non-random group assignment. 相似文献