Sexual dimorphism in human browridge volume measured from 3D models of dry crania: A new digital morphometrics approach

Sex estimation from the human skull is often a necessary step when constructing a biological profile from unidentified human remains. Traditional methods for determining the sex of a skull require observers to rank the expression of sexually dimorphic skeletal traits by subjectively assessing their qualitative differences. One of these traits is the prominence of the glabellar region above the browridge. In this paper, the volume of the browridge region was measured from digital 3D models of 128 dry crania (65 female, 63 male). The 3D models were created with a desktop laser scanner, and the browridge region of each 3D model was isolated using geometric planes defined by cranial landmarks. Statistical analysis of browridge-to-cranium volume ratios revealed significant differences between male and female crania. Differences were also observed between geographically distinct populations, and between temporally distinct populations from the same locale. The results suggest that in the future, sex determination of human crania may be assisted by quantitative computer-based volume calculations from 3D models, which can provide increased objectivity and repeatability when compared to traditional forensic techniques. The method presented in this paper can easily be extended to other volumetric regions of the human cranium.     

Laminated safety glass as an intermediate target: a wound ballistic study

Various 9‐mm ammunitions (A1, A4, A5, ST, GS, GSb, P.E.P., SeCa, HP, PTP/s, VM, McVG, DM41, PTP, SX2, PT, and MEN frangible) were tested regarding their velocity, energy, angle of impact, and potential wound channel after penetrating a car window at 30° and 90°. Test materials were gelatine, soap, and pig cadavers. The velocities of the projectiles were between c. 288 and 430 m/ses, the energy spread between 394 and 564 J. Handgun bullets fired through vehicular side window glass lose substantial energy reducing the effectiveness of the ammunition. This effect is greater when fired at an angle of 30° compared to 90°. At a shooting angle of 90°, none of the different projectiles showed remarkable differences considering its wound ballistic features. Accuracy is maintained at a 90° angle but seriously impaired at 30°. None of the examined ammunition complied with the demanded wound channel effectiveness of 30–60 J/cm.     

Towards a Measurement of Extreme Left-Wing Attitudes

Previous research on left-wing extremism relied largely on measurements that are unsuitable to detect and track extreme attitudes. In the absence of a clearly defined instrument for left-wing extremism, researchers based their predictions largely on indicators like voting behaviour or the left—right self-placement scale. Building on a large-scale investigation of data from the past 20 years, the paper shows that such indicators do not serve as adequate proxies, since those labelled as ‘extreme’ do not hold extreme attitudes in most cases. Analysing a variety of left-wing extremist attitudes across the past two decades shows that there is indeed a core set of attitudes that seem to resemble what we would call a traditional left-wing extremist identity. The paper suggests an instrument that can serve as a starting point for further developing an index of left-wing extremism. Finally, the potential of the extreme left is assessed using the constructed index. The results show that the estimated potential of the new measure differs substantially from conventional measurements, not in quantity but in its composition. As a result, traditional measurements fail to predict actual left-wing extremism. In particular, anti-pluralist mindsets are heavily neglected. Implications are thus discussed for Germany, and the world at large.     

Are School Committees a Source of Empowerment? Insights from Tanzania

Studies on user committees often critique the claim that membership to these committees empowers people. In this article, we use survey data on empowerment school committees in Tanzania to find out whether school committee membership is a source of empowerment of people at the local levels. Our findings suggest that membership in itself has limited impact on empowerment, while access to information and gender are the major sources of empowerment. However, the role of membership to the school committee is significant insofar as it can expose members to critical information on school issues.     

Justice Sensitivity and Cooperation Dynamics in Repeated Public Good Games

It is frequently observed that despite individual incentives to free ride, humans decide to cooperate with each other to increase social payoffs. In the current research, we address the effects of individual differences in justice sensitivity on cooperation. Using incentivized repeated public good games, we find that individual differences in justice sensitivity—the ease of perceiving, remembering, and reacting to injustice from the perspectives of an observer, beneficiary, or perpetrator, but not victim—substantially predicts cooperation in the absence of a punishment option. In contrast, when costly punishment is allowed for, cooperation becomes strategic as it also aims at avoiding subsequent punishment. If such a sanctioning mechanism is in place, justice sensitivity no longer predicts cooperation. The results regarding the degree of cooperation as reaction to initial non-cooperation of one’s counterparts highlight the role of justice-concerning personality traits for the sufficient provision of public goods, as sanctioning institutions are not always possible, effective, or suitable.     

Managing technological distance in internal and external collaborations: absorptive capacity routines and social integration for innovation

While high technological distance to project partners outside of the established value chain can positively influence innovation performance, project goals can only be achieved if the social integration of project members is improved in terms of coordination and communication. This paper draws on embeddedness and absorptive capacity literature to explore how social integration mechanisms translate into different learning outcomes in distant collaborations within and across organizational boundaries. Drawing upon expert interviews with project members as our primary source of data, we conducted an in-depth multiple case study analysis of a number of inter-organizational projects. Our findings indicate that the effect of different types of social integration mechanisms on learning outcomes also affect the ability to bridge distances in process and product technology. Moreover, they suggest that it is not just the extent, but also the interplay of social integration mechanisms surrounding internal and external absorptive capacity routines that enable project members to engage in the exploration, transformation and exploitation of distant knowledge. In examining how social integration mechanisms foster learning outcome in distant collaborations, our study contributes to the literature on absorptive capacity.     

Do Politicians See Eye to Eye? The Relationship between Political Group Characteristics,Perceived Strategic Plan Quality,and Strategic Consensus in Local Governing Majorities

Although strategic consensus is a core concept in strategic management research, empirical evidence is lacking on (1) the degree of strategic consensus in public organizations, (2) how strategic consensus is impacted by group characteristics specific to public strategic decision‐making groups, and (3) how strategic plans impact these relationships. An analysis of multisource data from 1,075 governing majority members nested in 256 Flemish municipalities (Belgium) indicates that within‐group strategic consensus varies among governing majorities and is negatively impacted by political diversity and political power, but these relationships are mediated by perceived strategic plan quality. The results indicate that the idiosyncrasies of public decision‐making groups can impede high levels of strategic consensus, but strategic plans can attenuate this effect by fulfilling a boundary‐spanning role.     

Reflections on Global Climate Politics Post Paris: Power,Interests and Polycentricity

The Paris Agreement on climate change adopted in December 2015 has the potential to shape future climate politics and governance significantly, with broader implications for world politics at large. First of all, it solidifies the importance of ‘low-emission capacity’ as a source of power in international climate politics. Second, it supports the ongoing societal mobilisation and reinforces interest in the new climate economy. Third, it points, as a result, toward a more multipolar future climate world order. Finally, the Agreement recalibrates the role of the multilateral UN process as providing overall direction towards global decarbonisation, while leaving implementation to states, other international organisations and various non-state actors and initiatives. Therefore, phasing out global greenhouse gas emissions within the next few decades requires subnational and national policy frameworks that facilitate and promote overachievement and hence drive an upward dynamic – making the Paris Agreement a real-world experiment with an uncertain outcome.     

Less conflict,more peace? Understanding trends in conflict persistence

Persistent civil wars constitute a serious challenge to human security and have received growing attention in recent years. Yet our understanding of patterns of conflict persistence suffers from both the absence of clear definitions and measurements as well as a lack of attention to changes over time. As a result, the prevailing image of conflict persistence as an increasing threat does not adequately reflect reality. This in turn limits our ability to identify factors that favour or prevent persistence. The paper will highlight largely overlooked developments in intrastate conflict persistence over the last decades, showing that new conflicts appear to be shorter than before, while long duration and high recurrence rates are predominantly found in relatively small and peripheral conflicts. I argue that the major drivers of these patterns include changes in the nature and context of civil wars since the end of the Cold War, as well as changes in state capacity. The relationship between state capacity and conflict persistence, however, is ambivalent, and in some cases state strength appears to be a permissive factor of conflict persistence.