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The aims of this study were twofold: (1). to measure parameters that contribute significantly to estimates of dental age, using a combination of classic methods and a computer-assisted image analysis procedure to avoid the bias inherent in observer subjectivity; and (2). to develop new mathematical regression models for age prediction according to postmortem interval. Two different populations were studied. Forty-three permanent teeth (Group I), extracted for valid clinical reasons, were taken from patients 25-79 years of age. The other population group (Group II) was composed of 37 healthy erupted permanent teeth obtained from human skeletal remains (age 22-82 years) with a postmortem interval ranging from 21 to 37 years. Morphologic age-related changes were investigated by measuring variables on intact and half-sectioned teeth. Multiple regression analyses were performed with age as the dependent variable for each sample source. In fresh extracted teeth, the variables that made the greatest contributions to predictions of age were dental attrition, dentin color, and translucency width, the latter measured with a computer-assisted image analysis method. In teeth from human skeletal remains, the variables that made the greatest contributions to age calculation were cementum apposition, pulp length measured by computer-assisted image analysis, dental attrition, root translucency, and dental color. We conclude by recommending different regression models to calculate age depending on the postmortem interval.  相似文献   
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Tattooing has always been associated with criminals. Indeed, it is both an administrative and clinical problem in prisons. This article looks at the relationship between psychopathology and tattooing infractions within prison. Using a sample of 8,574 male inmates in the Colorado Department of Corrections, initial admission personality testing was compared to tattooing infractions within the next 2 years. Personality types more likely to engage in tattooing included Antisocial, Sadistic, Negativistic, and Borderline. Compulsive personality types engaged in relatively less tattooing. Clinical syndromes associated with more tattooing included Mania, Drug Abuse, Post-Traumatic Stress disorder, and Thought Disorder.  相似文献   
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Over the last decades, indigenous movements have propelled the political empowerment of historically marginalized groups in Latin America. The Maya struggle for ethnic equality in Guatemala, however, since its reawakening during the peace process, has reached an impasse. Based on field research consisting of dozens of elite interviews, this article analyzes the patterns of and obstacles to present‐day Maya mobilization. It combines movement‐internal and ‐external factors in an overarching theoretical argument about indigenous movements' capacity to construct strong collective voices. In the Guatemalan case, organizational sectorization, the lack of elite consensus on key substantive issues, and unclear alliance strategies compromise the effectiveness of horizontal voice among Maya organizations. These problems are exacerbated by the lasting effects of the country's unique history of violence and state strategies of divide and rule, preventing the emergence of a strong vertical voice capable of challenging the Guatemalan state.  相似文献   
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Over recent decades, emigrants have gained expanded voting rights on a global scale. Despite the normative debates about this issue, there are few empirical studies on why states decide to implement external voting and how electoral systems perform. This article seeks to fill this gap by looking at the Portuguese case. Our study suggests that a combination of political and socio-economic factors explains the implementation of external voting. On the other hand, the interests of political parties and the low level of civil society engagement are key to determining the failure of electoral reforms and the attempts to overcome the shortcomings of external voting.  相似文献   
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During the first third of the twentieth century, several women joined associations to promote legal reforms. Between 1917 and 1934, the Cuban Parliament passed laws regarding women’s legal status, therefore challenging the traditional relations between state, Church and family inherited from the colonial period. Although the Constitution of 1940 incorporated these measures, Cuban women barely took part in state institutions, but their increasing presence in public affairs marked a turning point in their social status. A few women were appointed as Cuban representatives to international organizations, and political parties set up female auxiliaries. Moreover, several women’s associations worked for peace, demanded improvements in the healthcare system, took action towards enhancing education in rural areas and pushed for effective reform of the Civic Code in order to provide equal rights for men and women. African-Cuban women’s participation in these organizations was limited due to discrimination and they in turn set up their own organizations.  相似文献   
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This article is an abstract of a conference with the same title presented at the XIII Jornadas sobre Derecho y Genoma Humano and is basically centred in a report for the Royal Society and the Royal Academy of Engineering entitled Nanoscience and Nanotechnology made publicly available July 2004.  相似文献   
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