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121.
Partner violence causes many negative outcomes for the target of the violence. Preventing negative outcomes in part hinges on altogether preventing the violence from occurring. There have been advances in violence prevention that the authors briefly review. However, some of the most notable advances focus on dealing with partner violence once it occurs. We now have a better understanding of different types of violence, and this has led to better interventions for perpetrators. But preventing the negative consequences of partner violence involves more than ending the violence itself; it also involves helping the targets of violence heal. The authors propose that the next decade of research on partner violence should focus on developing precise models of target coping and appropriate interventions for targets. The authors describe key variables that characterize the coping process but highlight limitations in knowledge of how these variables are related. The authors also outline several benefits of focusing on helping targets. 相似文献
122.
Ethanol formation in unadulterated postmortem tissues 总被引:2,自引:0,他引:2
During the investigation of aviation accidents, postmortem samples obtained from fatal accident victims are submitted to the FAA's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. During toxicological evaluations, ethanol analysis is performed on all cases. Many species of bacteria, yeast, and fungi have the ability to produce ethanol and other volatile organic compounds in postmortem specimens. The potential for postmortem ethanol formation complicates the interpretation of ethanol-positive results from accident victims. Therefore, the prevention of ethanol formation at all steps following specimen collection is a priority. Sodium fluoride is the most commonly used preservative for postmortem specimens. Several studies have been published detailing the effectiveness of sodium fluoride for the prevention of ethanol formation in blood and urine specimens; however, our laboratory receives blood or urine in approximately 70% of cases. Thus, we frequently rely on tissue specimens for ethanol analysis. The postmortem tissue specimens received by our laboratory have generally been subjected to severe trauma and may have been exposed to numerous microbial species capable of ethanol production. With this in mind, we designed an experiment utilizing unadulterated tissue specimens obtained from aviation accident victims to determine the effectiveness of sodium fluoride at various storage temperatures for the prevention of microbial ethanol formation. We found that without preservative, specimens stored at 4 degrees C for 96 h showed an increase in ethanol concentration ranging from 22 to 75 mg/hg (average 42 +/- 15 mg/hg). At 25 degrees C, these same specimens showed an increase ranging from 19 to 84 mg/hg (average 45 +/- 22 mg/hg). With the addition of 1.00% sodium fluoride, there was no significant increase in ethanol concentration at either temperature. 相似文献
123.
Voluntary environmental programs (VEPs) have become a popular alternative to traditional regulation. However, little is known about whether these programs are sending accurate signals about the environmental practices of their participants. As a means for understanding signaling accuracy, this research investigates VEP design characteristics. The findings suggest that there are four distinct types of programs with varying degrees of rigor. Because information for differentiating among program types is limited, less rigorous VEPs can signal that their administrative, environmental performance and conformance requirements are comparable to programs with more robust designs. Further, the lack of monitoring and sanctions in less rigorous programs create opportunities for participants to free-ride and receive benefits without satisfying VEP requirements. Unless some means of distinguishing among program types is implemented, these issues can threaten the long term viability of VEPs as a tool for environmental protection, and the credibility of market mechanisms more broadly. 相似文献
124.
Homeland Security Preparedness: The Rebirth of Regionalism 总被引:1,自引:0,他引:1
The homeland security mission has placed many new demands onthe U.S. system of federalism. The successful implementationof homeland security policy requires cooperation among all levelsof governmentfederal, state, and local. Regionalism offersa powerful tool for encouraging greater intergovernmental cooperationand improved homeland security preparedness. We assess the impactof regionalism on intergovernmental cooperation and the implementationof the homeland security mission in Florida, an early proponentof the regional approach. From a regional perspective, we evaluatehow intergovernmental complexity, the quality and quantity ofintergovernmental networks, and security vulnerabilities contributeto perceived improvements in intergovernmental cooperation andhomeland security preparedness. The results of a 2004 mail surveyof city and county officials suggest that regional organizationalstructures are most effective in promoting intergovernmentalcooperation and preparedness where the intergovernmental landscapeis the most complex and where security vulnerabilities are themost intense. 相似文献
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Stab-resistant body armour is now becoming a standard item of equipment for police officers in the United Kingdom. In the UK these are usually required to have a stab resistance as specified by the Police Scientific Development Branch KR42 standard [G. Parker, PSDB Stab Resistant Body Armour Test Procedure, Police Scientific Development Branch, Publication No 10/93, 1993]. There are several other test standards, all of which specify that body armour must resist penetration by a specific blade type delivered at a specific energy level or range of levels. However, the actual range of energy levels specified varies over almost an order of magnitude and the basis for these levels is not clearly defined. This paper describes tests to determine the energy range and characteristics of stabbing actions that might be directed against stab resistant body armour by an assailant. The energy and velocity that can be achieved in stabbing actions has been determined for a number of sample populations. Volunteers were asked to stab a target using an instrumented knife that measured the axial force and acceleration during the stabbing. The maximum energy obtained in underarm stabbing actions was 64 J whilst overarm stabbing actions could produce 115 J. The loads produced on contact with the target often approached 1000 N. 相似文献
128.
Eisenberg Marla E. Erickson Darin J. Gower Amy L. Kne Len Watson Ryan J. Corliss Heather L. Saewyc Elizabeth M. 《Journal of youth and adolescence》2020,49(4):836-848
Journal of Youth and Adolescence - Research has indicated that lesbian, gay, bisexual, and queer/questioning (LGBQ) adolescents have disproportionately high rates of substance use compared to... 相似文献
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Our article explores the contribution of local initiatives to the creation of path dependencies for energy transition in Germany and Japan in the face of resistance from entrenched incumbents at the national level. We use a process‐tracing methodology based partly on interviews with local participants. In particular, we explore the role of local initiatives in securing “socio‐political space” for the expansion of renewable energy (RE) and in embedding themselves in “ecosystems” of public and private institutions. German energy activists were more successful than their Japanese counterparts in expanding this space and creating positive feedback in part because they were able to build horizontal networks that anchored the energy transition firmly in local communities. Although problems with grid technology have led to retrenchment in both cases, Japanese activists' reliance on vertical networks has limited their ability to weather a backlash from national government and utility actors. Our study demonstrates the interaction of political, economic/technological, and legitimation paths to energy transition and highlights the importance of the latter two. 相似文献