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Adolescent self-regulation is increasingly seen as an important predictor of sexual risk-taking behaviors, but little is understood about how changes in self-regulation affect later sexual risk-taking. Family financial stress may affect the development of self-regulation and later engagement in sexual risk-taking. We examined whether family financial stress influences self-regulation in early adolescence (age 13) and growth in self-regulation throughout adolescence (from age 13–17 years). We then assessed the effects of family financial stress, baseline self-regulation, and the development of self-regulation on adolescent sexual risk-taking behaviors at age 18 years. Using a curve-of-factors model, we examined these relationships in a 6-year longitudinal study of 470 adolescents (52% female) and their parents from a large northwestern city in the United States. Results indicated that family financial stress was negatively associated with baseline self-regulation but not with growth in self-regulation throughout adolescence. Both baseline self-regulation and growth in self-regulation were predictive of decreased likelihood of engaging in sexual risk-taking. Family financial stress was not predictive of later sexual risk-taking. Intervening to support the development of self-regulation in adolescence may be especially protective against later sexual risk-taking.  相似文献   
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For approximately two decades, the federal regulation for third‐party election spending was the focus of repeated constitutional debate. However, with the 2004 Supreme Court decision in Harper v. Canada, a relative level of policy stability has been established. This stability permits us to evaluate the performance of spending limits according to the principles of the egalitarian model on which it is based. Using an original data set compiled from third‐party election advertising reports from the 2004, 2006 and 2008 federal elections, this article offers the first empirical analysis of this important election policy. A number of observations can be offered. First, third parties are not spending large amounts relative to spending limits. Second, despite legislative changes in 2006 banning all federal party contributions except those from individuals, there appears little strategic action by third parties in spending “around” contribution limits. During this three‐election cycle, third parties quite simply did not spend significant amounts. Current third‐party spending limits therefore appear to be situated comfortably within the expectations of the egalitarian model, though why third parties of all types spend so little remains in question.  相似文献   
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Suspecting that his electoral campaign had received contributions from the Cali drug cartel, the U.S. government considered Colombian president Ernesto Samper (1994–98) an enemy in the drug war. U.S. antidrug policy accordingly targeted not just illicit crop cultivation, traffickers, and money laundering but also the democratically elected president himself. In many ways, U.S. policy became obsessed with bringing down Samper, an "explicit narcotization" that had severe consequences for the two countries' relationship. This case study analyzes the often complex interactions between dominant and subordinate states, especially when the dominant state's involvement in the subordinate state is driven by domestic political concerns.  相似文献   
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This article explores the experience of domestic violence and utilization of domestic violence resources among immigrant women who were Russian speaking. Participants, many of whom came to the United States as so-called mail-order brides, reported diverse forms of abuse, including isolation and financial restrictions, and were reluctant to get outside help because of embarrassment about their circumstances. Survivors stressed the importance of language- and culture-appropriate outreach and services and urged that women receive information about domestic violence services and laws on immigration. Assistance with housing, child care, and job searches is integral to safe transitions out of abusive relationships.  相似文献   
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Successful technology transfer depends on the skills and knowledge of those who must implement new or rapidly advancing technologies. Often, new systems and technologies are delivered without proper preparation of the intended users. Thorough documentation is only part of the solution-during development, many important and technology-specific lessons are learned. These include problem diagnosis, troubleshooting techniques, and strategies for optimum utilization. Many such skills develop in response to incidents that occur during testing and evaluation and are rarely incorporated into formal documentation or instructional materials. Yet they can make the difference between skilled satisfied users and frustrated non-users. Gary A. Klein, who received his Ph.D. in experimental psychology at the University of Pittsburgh in 1969, is chairman and chief scientist of Klein Associates Inc. (Fairborn, OH) an R&D company he founded in 1978 to do work in applied cognitive psychology. His principal research area is methods of knowledge elicitation that reflect the perceptual-cognitive aspects of expertise. He previously worked at the US Air Force Human Resources Laboratory. Beth Crandall holds a dual appointment as research associate and director of operations at Klein Associates Inc., which she joined in 1986. Her research interests include expert knowledge and decisionmaking skills, and methods for eliciting this information. She received her BS in psychology from Wright State University in 1978.  相似文献   
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When assaying for postmortem morphine concentration, significant site sampling variability exists between central and peripheral sampling sites and even within sampling regions of the body. To study the variation, 76 suspected heroin overdoses were identified. Each had femoral artery (FA) and vein (FV), left and right ventricle and pooled heart blood samples obtained at autopsy. Forty-four tested positive for morphine. Morphine concentrations were determined by gas chromatography/mass spectrometry, with sampling site differences reported as log-transformed ratios and compared by signed rank test.The mean FA to FV ratio for total morphine was 1.2 (range 0-4.5). The ratio for left heart to right heart total morphine was 1.1 (range 0.4-3.2). Left ventricular to FV total morphine ratio was 2.0 (range 0.6-6.9). In these opioid overdose deaths, FA and FV morphine concentrations are usually similar, although up to 4.5-fold differences were noted. Centrally obtained morphine concentrations are on average twice as high compared with peripheral morphine concentrations. Left and right ventricular morphine concentrations were usually similar, although up to 3.2-fold differences were noted (left side higher).  相似文献   
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