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231.
The aim of this article is to identify characteristics of communities where persons indicted under terrorism charges lived, planned, and prepared prior to carrying out a terrorist act. Guided by a model of community deterioration and using data from the Terrorism and Extremist Violence in the United States database, findings indicate: (1) half of all census tracts where terrorists planned and prepared for attacks were located in the western United States; nearly one fourth were in the Northeast; (2) nationally, terrorist pre-incident activity is more likely to occur in census tracts with lower percentages of high school graduates for Al Qaeda and associated movements (AQAM) terrorism but not for far-right terrorism, higher percentages of households living below the poverty level, more urban places, and more unemployed; and (3) communities with terrorist pre-incident activity are different types of places compared to those where there was no pre-incident activity, generally between different regions of the country, and specifically in terms of differences across far-right and AQAM terrorist movements. 相似文献
232.
Melissa Horne B.S. Kaylee R. Mastrianni Ph.D. Gray Amick Ph.D. Rachel Hardy B.S. Elissa Renneker B.S. Kevin W.P. Miller Ph.D. 《Journal of forensic sciences》2020,65(5):1709-1715
In the United States, federal law and many state laws differentiate between marijuana and industrial hemp through delta-9-tetrahydrocannabinol (THC) levels, whereby the latter is defined as ≤0.3 percent THC on a dry weight basis. Many traditional cannabis identification methods employed by crime laboratories cannot accurately determine total THC quantities in accordance with federal and state regulations, or do so with increased time, labor, and risks of instrument damage. In order to quickly distinguish positive marijuana samples, a method was developed to identify plant material with a total THC level >1%. This novel, automated dispersive pipette extraction (DPX) method uses tip-based technology and an automated liquid handler to enable fast, hands-free selective isolation of THC and its precursors for downstream gas chromatography–mass spectrometry (GC-MS) analysis. The workflow proceeds with no repetitive manual effort and reduced need for instrument maintenance while enabling crime labs to legally identify marijuana through the detection of total THC above 1%. Recovery of THC using the DPX extraction method was 93% at 30 µg/mL and 78% at 500 µg/mL. Similarly, THCA-A recovery was 100% at 30 µg/mL and 74% at 500 µg/mL. Samples evaluated in a blind study (proficiency, hemp, and nonprobative case samples) were all accurately identified as greater than or less than 1% THC, with samples containing <1% THC being identified as “cannabis” and subjected to more discriminative analysis as needed. 相似文献
233.
Kevin J. Strom Ph.D. Joshua A. Hendrix Ph.D. William J. Parish Ph.D. Patricia A. Melton Ph.D. Hannah Feeney Ph.D. 《Journal of forensic sciences》2020,65(5):1497-1506
Over the past decade, the large numbers of untested sexual assault kits (SAKs) have been highlighted as a systematic problem that jeopardizes or delays justice for victims. Considering the benefits of testing SAKs, researchers have worked to shed light on why sexual assault evidence has not been effectively submitted to and processed by crime laboratories. Missing from this discourse has been an understanding of the types of practices or qualities that encourage efficiency in the testing of SAKs in crime laboratories. We analyzed results of a national survey administered to all publicly funded state and local crime laboratories (N = 132 respondents) to provide critical information about (i) the extent to which laboratories are testing all of the SAKs possible given the resources they have available; and (ii) the impact that staffing, equipment, policies, and other practices have on SAK testing efficiency. We find that the average laboratory tests only about 69% of the SAKs possible given the resources available to them. However, although technical inefficiencies explain a large proportion of the number of untested SAKs, the accumulation of untested SAKs must also be attributed to laboratories having insufficient resources (e.g., too few forensic analysts). Moreover, results from stochastic frontier models show that doubling the number of forensic analysts in the typical laboratory would allow them to expand their SAK testing capacity by nearly 50%. Implications of these findings are discussed as they relate to the prioritization of resources for crime laboratories, which often operate under strict budgetary realities. 相似文献
234.
This exploratory study examined juvenile drug courts’ effect on adulthood recidivism. Utilizing a twelve-year average follow up time, adult recidivism rates were compared between previous juvenile drug court participants and a comparison group of juveniles who participated in traditional probation. Linear regression models indicated limited recidivism effects of drug court on arrests or convictions into adulthood. The findings suggest that gender and race may play a role in how justice-involved juveniles interact and experience juvenile drug court, highlighting the need for gender-responsive and culturally responsive policies, practices, and programs within juvenile drug courts. Recommendations are made regarding future research areas and ways to potentially improve long-term juvenile drug court outcomes. 相似文献
235.
Kevin Arceneaux 《Political Behavior》2008,30(2):139-160
When evaluating political candidates, citizens can draw on partisan stereotypes and use partisan cues to make inferences about
the candidates’ issue positions without undertaking a costly information search. As long as candidates adopt policy positions
that are congruent with partisan stereotypes, partisan cues can help citizens make an accurate voting decision with limited
information. However, if candidates take counter-stereotypical positions, it is incumbent upon citizens to recognize it and
adjust their evaluations accordingly. Using the dual-processing framework, I hypothesize about the conditions under which
individuals reduce their reliance on partisan cues and scrutinize counter-stereotypical messages, and test these hypotheses
with experimental data collected from a nationally representative sample of adults. The findings show that whether individuals
punish a candidate from their party for taking a counter-stereotypical position is contingent on the salience of the issue
and the political awareness of the message recipient. The article concludes with a discussion of the theoretical and normative
implications of these findings.
相似文献
Kevin ArceneauxEmail: |
236.
This study explores the connections between the Long Wave and the Leadership Cycle by examining their possible effect on long-term patterns in major power war and colonial expansion. Building directly upon the Leadership Cycle work of Modelski and Thompson, Goldstein's Long Wave analysis, and the Modern World System School, a new analytical framework is developed. This framework treats the Leadership Cycle and Long Wave as separate, though interconnected processes, and permits derivation of empirically testable hypotheses concerning the effects of the Leadership Cycle and Long Wave on armed conflict in the system, and on the timing of colonial expansion by major powers into the periphery. This "phase-pair" framework also allows assessment of the effect of each systemic process while controlling for the effect of the other. The results of our analysis suggest that the Long Wave and Leadership Cycle not only are associated with the most severe or systemic wars, but may affect conflict more broadly within the system. We also find strong identifiable effects of these processes on colonization. Finally, all results taken together indicate the Long Wave and Leadership Cycle should be treated as distinct, though interrelated processes. 相似文献
237.
Research Summary This study investigated forensic evidence processing in a nationally representative sample of state and local law-enforcement agencies (n = 3,153). For a 5-year period, agencies reported that 14% of all unsolved homicides (an estimated 3,975 cases) and 18% of all unsolved rapes (an estimated 27,595 cases) contained forensic evidence that had not been submitted to a forensic crime laboratory for analysis. Approximately 40% of these unanalyzed homicide and rape cases were reported to have contained DNA evidence. The lack of a suspect in the case was the most frequently cited reason for not submitting forensic evidence for analysis. Policy Implications Despite an increased diffusion of knowledge regarding the value of forensic evidence in the prosecution and defense of criminal cases, the investigative capabilities of forensic science are not being realized by law enforcement. Additional training for law enforcement on the use of forensic science to develop investigative leads is critical, as is the creation of departmental policies that prioritize and streamline the analysis of forensic evidence for homicide and rape cases—even in “no-suspect” cases. Ensuring adequate resources and information sharing for forensic processing especially of violent crimes, is also critical. 相似文献
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