Identification and Individualization of Lophophora using DNA Analysis of the trnL/trnF Region and rbcL Gene

Lophophora williamsii (peyote) is a small, spineless, greenish‐blue cactus found in Mexico and the southwestern United States. Ingestion of the cactus can result in hallucinations due to its content of mescaline. In the United States, L. williamsii is classified as a Schedule I controlled substance. In this study, we use DNA analysis of the chloroplast trnL/trnF region and chloroplast rbcL gene to identify the individuals of Lophophora. Using the rbcL gene, Lophophora specimens could be distinguished from outgroups, but species within the genus could not be distinguished. The trnL/trnF region split the Lophophora genus into several groups based on the length and substructure of an AT‐rich segment of the sequence. Our results indicate that the genetic variability at the trnL/trnF locus is greater than previously recognized. Although DNA structures at the trnL/trnF region and rbcL gene do not align with the classification of Lophophora species, they can be used to aid in forensic analysis.     

Cyberbullying Victimization and Depression in Adolescents: The Mediating Role of Body Image and Cognitive Schemas in a One-year Prospective Study

Cyberbullying, the harassment of others via new technologies, is a growing phenomenon with important consequences for its victims. Despite the growing interest in this new form of violence, only a few longitudinal studies have analyzed the relationship between cyberbullying victimization and psychological problems, such as depression, in adolescents. Furthermore, the mechanisms through which cyberbullying victimization contributes to the development of depressive symptoms remain almost unexplored. The current study assesses whether cyberbullying victimization predicts the increase in depressive symptoms over time and the role of body image and cognitive schemas in the association between cyberbullying victimization and depression. We hypothesized that victims of cyberbullying would develop a negative body image, the belief that others would hurt them and that they were defective to some degree, and that, as a consequence of these cognitions, they would increase their symptoms of depression. A sample of 1015 adolescents (mean age?=?15.43, SD?=?1.09) completed measures of depressive symptoms at three waves (T1, T2, and T3) spaced 6 months apart, measures of body image and cognitive schemas at T1 and T2, and measures of CB victimization at T1. Findings indicated that CB victimization at T1 predicted a worsening of body image and cognitive schemas of mistrust and defectiveness at T2, and those changes in cognitions predicted in turn an increase in depressive symptoms from T2 to T3. Gender differences were also examined. The model was very similar for boys and girls. However, changes in body image acted as a mediator between CB victimization and depression only in girls. Therefore, this study contributes to clarifying the cognitive mechanisms involved in the development of depression among victims of CB. These findings suggest that intervention programs with victims of CB should address the cognitions that are relevant for the development of depression.     

Country level efficiency and national systems of entrepreneurship: a data envelopment analysis approach

This paper tests the efficiency hypothesis of the knowledge spillover theory of entrepreneurship. Using a comprehensive database for 63 countries for 2012, we employ data envelopment analysis to directly test how countries capitalize on their available entrepreneurial resources. Results support the efficiency hypothesis of knowledge spillover entrepreneurship. We find that innovation-driven economies make a more efficient use of their resources, and that the accumulation of market potential by existing incumbent businesses explains country-level inefficiency. Regardless of the stage of development, knowledge formation is a response to market opportunities and a healthy national system of entrepreneurship is associated with knowledge spillovers that are a prerequisite for higher levels of efficiency. Public policies promoting economic growth should consider national systems of entrepreneurship as a critical priority, so that entrepreneurs can effectively allocate resources in the economy.     

Does media freedom improve government effectiveness? A comparative cross-country analysis

Government effectiveness could be explained by the level of well-informed electorate members, who use the press to learn more about politicians and public servants. Thus, a free press may improve citizens’ accessibility to this information, which in turn will make it more difficult for politicians and public servants to cover up or get away with corrupt behaviour, so the quality of the government could be affected by the media freedom. Accordingly, the main aim of this paper is to determine the effect of the freedom of the press on government effectiveness, considering additionally environmental, institutional, and political characteristics as factors that could determine the level of government effectiveness. To achieve this aim, we examined 202 central governments and compared them across countries using the World Bank data set of Governance Indicators for 2002–2008. The results show that the media, the organizational environment, and political characteristics may be determinants of the level of government effectiveness, taking countries’ economic development into account.     

Legislative success in open sky congresses: weak gatekeeping prerogatives and the loss of majority support

In legislatures with weak gatekeeping institutions and constrained plenary time, scheduling rules and majority requirements explain inter-party differences in the consideration and approval of law initiatives. In this paper a mixture survival model is used to analyse legislative success in a legislature with very weak gatekeeping prerogatives, the House of Representatives of Uruguay. Evidence is provided that the loss of majority support depletes plenary time more rapidly and yields an ideological drift that benefits the median voter of the House. The results inform recent debates on the endogenous formation of a plenary schedule in open sky legislatures.     

Opiate treatment in the criminal justice system: a review of <Emphasis Type="Italic">crimesolutions.gov</Emphasis> evidence rated programs

As drug control policy reform trends toward marijuana decriminalization, focus will shift to opiate enforcement which, in turn, accentuates substance abuse treatment. While the national offender reentry movement has effected widespread implementation of programming for co-occurring substance abuse and mental health disorders, the practice of Medicated Assisted Treatment (MAT) is nonstandard throughout the criminal justice system despite its evidence based status. This paper observes MAT delivered within and by the criminal justice system as indicated by evidence rated programs and practices listed in the national criminal justice evidence based registry crimesolutions.gov. Observation of these programs’ treatment orientation, client populations, delivery settings, and operational status inform discussion for additional MAT implementation and program registry augmentation.