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Adolescent Intimacy Revisited 总被引:3,自引:0,他引:3
Shulman Shmuel Laursen Brett Kalman Zwi Karpovsky Sigal 《Journal of youth and adolescence》1997,26(5):597-617
Two studies examined intimacy in adolescent friendships. In the first, 7th-, 9th-, and 11th-grade students completed a questionnaire assessing perceived friendship intimacy. Age and sex differences were identified in emotional closeness, self-disclosure, emphasis on individuality, control, and conformity. Across ages, emphasis on individuality increased, whereas control and conformity declined. There were no age differences in emotional closeness and self-disclosure. Females reported more emotional closeness and self-disclosure than males. In the second study, individual differences in friendship intimacy were examined in a sample of 9th-grade adolescents. A joint problem solving task identified interdependent and disengaged friends. Perceived intimacy among interdependent and disengaged friends was contrasted with that in a control group of subjects without friends. Adolescents with friends reported more closeness than those without friends. Interdependent friends reported greater levels of respect for individuality than disengaged friends. The results underscore the salience of intimacy for peer relationships during the adolescent years and suggest that intimacy may be an important construct distinguishing between different types of close friendships. 相似文献
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The use of a new technique, Fourier transform infrared (FTIR) chemical imaging, has been demonstrated for the enhancement of latent fingermarks on a number of surfaces. Images of untreated fingermarks on glass backgrounds with excellent ridge detail were acquired using infrared chemical imaging. High quality fingermarks on glass backgrounds were also developed using ethyl cyanoacrylate (super glue) fuming and subsequent infrared chemical imaging. This new method allows the collection of images from backgrounds that traditionally pose problems for current fingermark detection methods. The background may, for example, be highly colored, have a complex pattern, or possess other pattern or image characteristics that make it difficult to separate fingermark ridges using traditional optical or luminescent visualization. One background that has proven to be a challenging surface for the development of latent fingermarks is the Australian polymer banknote. To demonstrate the power and applicability of infrared chemical imaging, fingermarks fumed with ethyl cyanoacrylate were successfully imaged from Australian polymer banknotes. 相似文献
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We examine how benefit amounts and family income would change in response to changing the Social Security (Old-Age, Survivors, and Disability Insurance, OASDI) benefit indexing scheme. We are interested in a class of reform options designed to gradually slow the growth of benefits across the board. These options include the "price indexing" and "longevity indexing" proposals that have been part of the recent Social Security reform debate in the United States as well as a range of proposals developed in Europe. In this article, we focus on the distributional effects on the disabled. This focus leads to two comparisons. First, we compare disabled-worker beneficiaries to another group that would be affected by the changes, retired-worker beneficiaries. Second, we examine relative changes for particularly vulnerable subgroups of disabled workers. In the empirical analysis, we use two illustrative examples of potential indexing changes: Shifting from wage indexing to price indexing of the initial level of OASDI benefits; and Adjusting the initial benefit level for changes in life expectancy at retirement, that is, longevity indexing. We employ a historical counterfactual simulation to evaluate outcomes that would have resulted from changing the indexing scheme at one particular point in time. The hypothetical implementation period begins with the historical start of the current regime of indexing in 1979 and ends with one of the reference periods of the 1996 Survey of Income and Program Participation (SIPP), a 17-year period. However, we briefly assess the extent to which the results would be applicable to other time horizons. The analysis uses a cross-sectional sample of OASDI beneficiaries from the 1996 SIPP matched to Social Security administrative records. Further, we use total income from the SIPP (as adjusted to correspond to the calculated OASDI benefit amounts) to simulate eligibility for Supplemental Security Income (SSI) and SSI benefit amounts. Our overall findings pertain to three outcomes: (1) effects on OASDI benefits viewed in isolation, (2) the offsetting role of SSI, and (3) the diluting effect of other sources of family income. We find that a broader perspective incorporating all three measures is necessary to obtain an appropriate picture of distributional outcomes. Even though the proposals were designed to have proportional effects, differences between groups--such as disabled and retired workers--can arise from differences in the timing of benefit claiming, mortality, and other factors. Specifically, our cross-sectional estimates suggest that the average change in OASDI benefit levels would be higher for disabled-worker beneficiaries than for retired-worker beneficiaries. These differences are attributable to the fact that a higher proportion of the stock of disabled beneficiaries have been on the Disability Insurance (DI) program rolls for a relatively short period of time and therefore have been affected by the shift in indexing scheme for a longer period of time. These results must be interpreted within the context of the methodology that was used. Further, other methodologies may lead to different results. For example, in previous studies that restricted the sample to a particular birth cohort, a higher proportion of disabled workers than retired workers were observed to have been on the DI program rolls for a relatively long period of time. Longer time on the beneficiary rolls corresponds to less exposure to the new indexing scheme and smaller estimated benefit changes. Thus, the same underlying factor-the timing of benefit claiming-influences both results. When the offsetting role of SSI benefits is also considered, we estimate smaller overall changes, especially for those at the bottom of the income distribution. When OASDI and SSI are considered together, differences in average benefit changes between disabled and retired workers are removed. This is due to a higher rate of SSI program participation among disabled workers than among retired workers. In addition, including SSI substantially reduces the proportion of disabled workers that have large simulated changes in benefit amounts. The estimated effects of changing the indexing scheme are further muted when total family income is considered. This occurs on a roughly equivalent scale for disabled and retired workers. As a result, changing the indexing scheme would produce little change in the status quo differences in poverty status between disabled and retired workers. Finally, we examine the most economically vulnerable subgroups of OASDI beneficiaries. Within the general group of beneficiaries, we find that the most vulnerable would be less affected than average, primarily as a result of the mitigating effect of SSI benefits. Further, within the population of disabled-worker beneficiaries, we examine economically vulnerable subgroups including those in the lowest primary insurance amount quartile, with less than a high school education, with an early onset of disability, or a primary mental impairment. These groups would also be less affected than average. 相似文献
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Alexander G. Kalman 《Trends in Organized Crime》2001,6(3-4):68-76
The collapse of communism in Ukraine created opportunities for organized criminal groups to expand their economic criminal
activities in the “shadow economy” by penetrating all levels of public and economic administration. Ukrainian law enforcement
agencies are poorly equipped to handle this increase in criminal activity, especially with respect to uncooperative foreign
and domestic economic institutions. State machinery for regulation and control of industry and commerce was easily accessible
to organized crime through bribing of state officials, who received no supervision during economic restructuring. Notwithstanding
the active assistance of corrupt government officials, organized economic crime has benefited from chaos and lost government
control as the result of recent economic reforms in Ukraine. Researchers in this study hypothesize that the social and economic
disorder, as well as a common and justified mistrust of state officials, fosters a pessimism and erodes moral standards, which
in turn fosters criminal activity. Of late, judicial sentencing for those convicted of economic crimes has become lighter
while many economic criminal cases are never investigated or prosecuted in the first place. In order to combat large-scale
corruption, there must be better supervision of government officials and better monitoring of foreign economic transactions.
One of the most disastrous consequences of the collapse of the Ukrainian communist system has been the widespread increase
of economic crime. This phenomenon is self-sustaining, penetrating all levels of Ukraine's economy and administrative sectors.
Criminal activity helps to sustain the shadow economy in Ukraine, which has been estimated by various sources to constitute
50 to 60 percent of the economy. Law enforcement and administrative efforts have been largely futile in curbing this corruption.
Nevertheless, it is possible to overcome the criminal social and economic order that has become ingrained in this “shadow
economy.” This paper seeks to propose policy solutions for Ukrainian economic crime and corruption that could be implemented
at the national level. 相似文献
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The application of infrared chemical imaging to the detection and enhancement of latent fingerprints: method optimization and further findings 总被引:1,自引:0,他引:1
Tahtouh M Despland P Shimmon R Kalman JR Reedy BJ 《Journal of forensic sciences》2007,52(5):1089-1096
Fourier transform infrared (FTIR) chemical imaging allows the collection of fingerprint images from backgrounds that have traditionally posed problems for conventional fingerprint detection methods. In this work, the suitability of this technique for the imaging of fingerprints on a wider range of difficult surfaces (including polymer banknotes, various types of paper, and aluminum drink cans) has been tested. For each new surface, a systematic methodology was employed to optimize settings such as spectral resolution, number of scans, and pixel aggregation in order to reduce collection time and file-size without compromising spatial resolution and the quality of the final fingerprint image. The imaging of cyanoacrylate-fumed fingerprints on polymer banknotes has been improved, with shorter collection times for larger image areas. One-month-old fingerprints on polymer banknotes have been successfully fumed and imaged. It was also found that FTIR chemical imaging gives high quality images of cyanoacrylate-fumed fingerprints on aluminum drink cans, regardless of the printed background. Although visible and UV light sources do not yield fingerprint images of the same quality on difficult, nonporous backgrounds, in many cases they can be used to locate a fingerprint prior to higher quality imaging by the FTIR technique. Attempts to acquire FTIR images of fingerprints on paper-based porous surfaces that had been treated with established reagents such as ninhydrin were all unsuccessful due to the swamping effect of the cellulose constituents of the paper. 相似文献
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