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11.
In the 1980s and 1990s, economic crisis produced ideological convergence in many Latin American party systems. Much scholarship explores how this convergence frequently provoked system change that enabled renewed ideological differentiation, but little research examines instances where convergence persisted without destabilizing the system. Through comparative historical analysis of Dominican continuity amid regional change, this study identifies factors that sustain or challenge party systems. Then, through analysis of Americas Barometer surveys, it assesses the causal mechanisms through which these factors shape support for the traditional Dominican parties. The findings demonstrate that maintaining programmatic and clientelist linkages facilitates continuity. In addition, the article argues that the threats political outsiders pose to existing party systems are constrained when people excluded from the system are divided and demobilized. In the Dominican case, Haitian immigration divides the popular sector while Dominicans abroad sustain ties to the parties, with both migration flows facilitating party system continuity.  相似文献   
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Methanol is a potent neurotoxic substance that causes severe metabolic acidosis and serious neurological disorders. Most of the cases are accidental exposures to drinking beverages contaminated with methanol. There are few articles reporting pure methanol intoxication; however, it is well known that small quantities of pure methanol causes blindness and death, the minimum lethal dose being 50-100 ml.A case report is presented of a 67-year-old woman, who committed suicide by ingestion of 500 ml of absolute methanol. Despite symptomatic and supportive intensive care, the woman died 23 h after hospital admission due to metabolic acidosis and multiple organ dysfunction syndrome. A complete medico-legal autopsy was performed. Grossly, there was complete detachment of the oesophagus mucosa and brownish discolouration of the gastric mucosa. Histological findings showed diffuse haemorrhagic necrosis of the stomach mucosa and intense acute inflammatory infiltration of the lamina propria. To our knowledge, this is the first autopsy report of such severe digestive injuries. A discussion and review of the recent literature on the subject are given.  相似文献   
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Journal of Youth and Adolescence - Although community violence and the deleterious behavioral and psychological consequences that are associated with exposure to community violence persist as...  相似文献   
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The knowledge of the discriminating power of analytical techniques used for the differentiation of writing inks can be useful when interpreting results. Ultraviolet-visible (UV-VIS) spectrophotometry, thin layer chromatography (TLC), and diffuse reflectance Fourier transform infrared spectroscopy (FT-IR) were used to examine a population of 21 black and 12 blue ballpoint writing inks. Based on corroborative results of these methods, the discrimination power for UV-VIS, TLC, and FT-IR was determined to be 100% and 98% for the black and blue inks, respectively. Generally, TLC and UV-VIS can be used to differentiate the colorant components (i.e., dyes and some pigments) found in inks. As FT-IR can be utilized to identify some of the noncolorant components, it was determined to be an excellent complementary technique that can be implemented into an analytical scheme for ink analysis.  相似文献   
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Abstract

Social networks have changed the way in which governments communicate with citizens, encouraging them to participate in decision-making processes. Nevertheless, few studies have specifically addressed the use of social networks in public sector from the standpoint of dialogic communication theory. The aim of this study is, first, to analyse the extent to which European local governments are developing dialogic strategies in their Twitter profiles in order to establish and enhance relations with their citizens and then to examine the impact of certain factors on the implementation of these dialogic strategies. The findings show that the situation is open to improvement, because local governments are mostly unaware of the benefits offered by the use of dialogic principles when establishing online relationships with stakeholders. Therefore, this paper sheds light on the dialogic potential that social networks provide in public sector, and particularly, it offers a guide regarding how local government should implement Twitter to foster the dialogic communication with citizens.  相似文献   
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Haplotype data were obtained from a sample of 777 unrelated male individuals from Antioquia Department (Colombia), for eight Y-chromosome STRs (DYS19, DYS385, DYS389 I, DYS389 II, DYS390, DYS391, DYS392 and DYS393). A total of 442 different haplotypes were identified of which 334 were represented only once in the database and the most frequent haplotype was found in 32 individuals. A high haplotype diversity was found (99.45%). Genetic distances were calculated using previously published haplotype data and the lowest values were found for the comparisons with samples of lberian origin.  相似文献   
18.
The allele frequency distribution of 15 short tandem repeat (STR) loci contained in the AmpFlSTR Identifiler PCR Amplification Kit (Applied Biosystems), was determined in 114 individuals from Andalusia (province of Huelva), in the southernmost part of the Iberian Peninsula. After Bonferroni's correction, no deviations from the Hardy-Weinberg equilibrium were observed for all samples at the 15 STR loci. All loci are highly polymorphic. The aim of the study was to obtain accurate allele frequencies relevant for applications in forensics and population genetics. Comparative analyses between our population data and other population samples gathered from the literature are also presented.  相似文献   
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The developments and applications in human biotechnology make us face deep social dilemmas, social and ethical, that are associated to the possibility of altering our evolutionary and cultural development, thereby renouncing to the principle of Humanity. From a sociological perspective, this text reflects on this matters taking into account how its past and present has shaped a specific operational matrix that is projected towards the future. We shall offer all the public perceptions held on their possibilities in Spain and in the European nations as every advance in scientific and technological matters must take into account the opinion of the citizenry. Finally, there are some final reflections that rather than close the debate leave some questions unanswered. The future should be constructed through dialogue and consensus in a matter of such importance.  相似文献   
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