The Frontal Sinus Cavity Exhibits Sexual Dimorphism in 3D Cone‐beam CT Images and can be Used for Sex Determination

Few studies have assessed the use of the frontal sinus cavities for sex differentiation. In this study, a new methodology was used to assess the reliability of CBCT images of the frontal sinus cavity for determining sex based on the sexual dimorphism found in this anatomical structure. The survey sample consisted of 130 scans that were reconstructed three‐dimensionally. 3D images of the cavity volume in the frontal, lateral, and basal views were exported in TIFF. The following variables were measured in a second program: area, perimeter, bounding rectangle, ellipse fit, circularity, aspect ratio, roundness, solidity, and Feret's diameter. The methodology demonstrated the existence of sexual dimorphism with an accuracy of 80.0% in the logistic regression model. The basal view had the greatest explanatory power in the final model. This methodology may be used as an alternative way of determining a reliable biological profile during the analysis of skeletal remains.     

A cross-cultural comparison of sociopsychological factors in alcohol use among adolescents in Israel,France, and the United States

The correlates of alcohol use by adolescents are compared in three cultures with different prevalences of alcohol use: France, with high prevalence; Israel, with low prevalence; and the United States, in the middle. In all three countries, significant others, parents and peers, are more powerful predictors of alcohol use than are the adolescent's personal attributes, such as attitudes, behaviors, and demographic characteristics. Cross-cultural differences appear in the relative importance of parents and peers and in the structure of influence of parents and peers as role models. Parents are more important role models in Israel than in the other two cultures, while peers are more important in the United States than in France or in Israel.This research was partially supported by Research Grants DA01902, DA00064, and Research Scientist Grant K05-DA00081 from the National Institute on Drug Abuse, and by the Center for SocioCultural Research on Drug Use, Columbia University.Received Ph.D. from Stanford University. Main interests are mathematical sociology, social stratification, and adolescent substance use.Received Ph.D. from Columbia University. Main interests are adolescent socialization, substance use, and psychiatric epidemiology.     

Federalism and National Leadership in Nigeria

National leaders in Nigeria, most of whom have come from themilitary, have exhibited various leadership styles. These stylesboth affect and are affected by Nigeria's federal system ofgovernment. Successful leaders appear to exercise a reconciliationstyle coupled with a mobilizational capacity to institute change.Efforts to impose a unitary system on Nigeria have failed, butseveral leaders have strengthened the power of the federal government,in part through the seemingly paradoxical strategy of creatingmore states. The return to civilian government, however, willrequire a new basis of legitimacy for national leadership rootedin constitutionalism and a democratic party system.     

Framing PIGS: patterns of racism and neocolonialism in the Euro crisis

Van Vossole's article explores the racist framing of the peripheral member states of the European Union, the PIGS (Portugal, Ireland (and/or Italy), Greece and Spain). It demonstrates a strong connection between the processes of racialization and depoliticization, as well as the return of colonial dynamics in the Eurozone. Side-stepping political economy and history, the culturalization of politics perfectly complements the ‘post-political’ neoliberal hegemony. Political and media discourses reproduce it in both populist and corporate interests. The culturalization of politics reduces the differences between centre and periphery to certain ‘cultural characteristics and habits’, as reflected in stereotypes of laziness, non-productivity, corruption, wasteful spending and lying. These make it possible to blame the PIGS for the current crisis, legitimizing drastic austerity measures and a loss of sovereignty. The loss of sovereignty shows remarkable similarities with what Kwame Nkrumah defined as neocolonialism: the continuation of colonial power relations through processes of economic dependence, conditional aid and cultural hegemony. While this problematic only resurfaced during the recent Euro crisis, Van Vossole discusses how today's racist discourses and neocolonial politics have their roots in the past, particularly in anti-Irish and anti-Mediterranean racism and in the (semi-)colonial position of the PIGS in the British and Ottoman empires. Besides structural violence against the periphery, a major consequence of this racialization is that it jeopardizes any possibility of further democratic political integration on the basis of a common European identity.     

Residential Mobility and Turnout: The Relevance of Social Costs,Timing and Education

Residential mobility has substantial negative effects on voter turnout. However, existing studies have been unable to disentangle whether this is due to social costs, informational costs or convenience costs that are related to re-registration. This article analyzes the relevance of the different costs by studying the effect of moving and reassignment to a new polling station in an automatic registration context and using a register-based panel dataset with validated turnout for 2.1 million citizens. The negative effect of moving on turnout does not differ substantially depending on the distance moved from the old neighborhood and it does not matter if citizens change municipality. Thus, the disruption of social ties is the main explanation for the negative effect of moving on turnout. Furthermore, the timing of residential mobility is important as the effect on turnout declines quickly after settling down. This illustrates that large events in citizens’ everyday life close to Election Day can distract them from going to the polling station. Finally, residential mobility mostly affects the turnout of less educated citizens. Consequentially, residential mobility increases inequalities in voter participation, which can be viewed as a democratic problem.     

Moving the campaign from the front door to the front pocket: field experimental evidence on the effect of phrasing and timing of text messages on voter turnout

Despite the widespread scholarly attention given to get-out-the-vote tactics the recent one and a half decade, few have studied the effect of short text messages (SMS) on voter turnout, and no previous such study has been conducted outside the US. We analyze four SMS experiments with more than 300,000 voters conducted in relation to two elections in Denmark and find intention-to-treat (ITT) effects between 0.33 and 1.82 percentage points with a pooled effect of 0.74 percentage points. Furthermore, we vary the timing and the content of the messages to test existing theories of text messages as mobilization tools. In one experiment, we find messages delivered before Election Day to have a higher effect than those delivered on Election Day, while we find no additional effect of delivering multiple messages. We also vary message content and in general find no significant differences from sending different messages.     

Stability and change in international policy-making: A punctuated equilibrium approach

International organizations (IOs) have developed into important policy venues beyond the state. Yet our understanding of the broader dynamics of IO policy-making is limited. This article offers the first comparative analysis of macro patterns in IO policy-making. Theoretically, we draw on punctuated equilibrium theory to develop hypotheses about stability and change in the orientation of IO policy agendas. Empirically, we examine novel data on the policy output of five general-purpose IOs between 1980 and 2015, combining statistical analysis and comparative case illustrations. The analysis yields two central results. First, the policy agendas of all five IOs display patterns of punctuated equilibria, with longer periods of stability interrupted by shorter periods of dramatic change. Second, the level of institutional friction in decision-making contributes to variation in punctuations across IOs and within IOs over time. The results suggest four broader implications: (1) punctuated equilibrium theory applies to a broader empirical domain than previously thought; (2) patterns of change in IOs are more complex than conventionally expected; (3) institutional friction matters for IOs’ responsiveness to societal demands and problem pressures; and (4) deeper integration of punctuated equilibrium theory into the study of IOs can pave the way for a promising IR research agenda.     

Politics in Motion: A Personal History of Political Science

The American Political Science Review (APSR) centennial provided us an occasion for the examination of the political science profession as reflected from its pages. Employing a citation analysis of 220 major political scientists published in the APSR and probing deeper into the citation record of some of its prominent scholars, this paper charts the dynamics of political science history. Since its birth over a hundred years ago, the profession has been in a state of constant flux, where new movements surge as previous ones decline once their integration into the fund of professional knowledge was completed. The paper argues that the surge and decline pattern is not a “tragedy of political science,” but a sign of a healthy and vigorous profession.