Memory for targets in a multilevel simulated environment: Evidence for vertical asymmetry in spatial memory

In two experiments, adult participants explored a symmetrical three-tiered computer-simulated building that contained six distinctive objects, two on each floor. Following exploration, the objects were removed, and the participants were asked to make direction judgments from each floor, indicating the former positions of the objects on that floor and on higher and lower floors. Relative tilt error scores indicated a bias, in that targets that were higher than the test location were judged as consistently lower than their actual positions and targets that were lower than the test location were judged as consistently higher than their actual positions. Absolute tilt errors revealed an asymmetry, with more accurate and less variable tilt errors for judgments directed to lower floors than for judgments directed to higher floors. Experiment 3 ruled out an account of the findings that does not relate them to spatial memory. The results suggest that the superiority of downward over upward spatial judgments, previously reported in two-dimensional visual-spatial tasks, extends to navigational spatial memory.     

Global Economy,Justice and Sustainability

Although this paper attends to some extent to the question whether the global economy promotes or impedes either justice or sustainability, its main focus is on the relationship between justice and sustainability. Whilst sustainability itself as a normative goal is about sustaining inter alia justice, justice itself requires intergenerationally the sustaining of the conditions of a good life for all. At the heart of this is a conception of justice as realising the basic rights of all–in contrast to a more demanding distributive principle or a less demanding principle of not violating the liberty rights or other basic rights of others. Although Pogge’s analysis that the global economy causes harm by failing to realise basic rights is seen as a useful challenge to common libertarian assumptions, the acceptance of other positive correlative duties, following Shue, is advocated. Insofar as the global economy fails to realise basic justice, the question is ‘how far can it realistically be changed?’ and this is a function partly of the moral attitudes of individuals at large.     

The Role of Reproductive Strategies in Academic Attainment

Since there is a tradeoff between prolongedformal education and early reproduction, education canbe construed as a long-term reproductive tactic. Thisreproductive strategies approach was tested by looking at relationships between sociosexuality (SOI)and parental investment (parental income, number ofsiblings, parental divorce, number of step siblings,birth intervals, birth order, closeness to parents) and GPA of 139 White students at a privatecollege. Parental investment was reduced to threefactors (Family Composition, Family Security, andMarital Instability), the last of which was negativelycorrelated with GPA and positively correlated with SOI.SOI was a much stronger (negative) predictor of GPA inwomen, but not men, than ACT was. Results support thereproductive strategies approach and imply that prediction of academic difficulty (and genderdifferences therein) must confront reproductiveissues.     

Peace and Justice: A Limited Reconciliation

This paper aims to relax the tension between the political requirements of making peace and the moral demands of doing justice, in light of the ‘peace processes’ in South Africa and Northern Ireland. It begins by arguing that criminal justice should be reconceived as consisting primarily in the vindication of victims, both direct and indirect. This is not to deny the retributive punishment of perpetrators any role at all, only to insist that it be largely subservient to the goal of vindication. Why should we take such an account of justice to be true? The paper offers two reasons. First, Christians – and even secularist liberals – have a prima facie reason in the consonance of this account with the Bible's eudaimonistic conception of justice as ordered to the restoration of healthy community. Second, since all concepts of criminal justice share the basic notion of putting right what is wrong, it would be odd if the repair of damage done to victims (i.e., their ‘vindication’) were not prominent among its concerns; and there are reasons to suppose that this vindication should actually predominate in relation to the other principles of justice (the retributive ‘balancing’ of crime and punishment, and the reform of the criminal for his own sake). In its final sections, the paper applies the proposed conception of criminal justice to the ‘peace processes’ in South Africa and Northern Ireland, and concludes that in both cases, notwithstanding concessions to the politics of peace-making, considerable justice has been done.     

Contribution of imitative suicide to the suicide rate in prisons

Suicide rates in prisons are high. Our aim was to investigate the contribution of imitative suicide to the prison suicide rate. We used Knox tests for space-time clustering in a case register of natural and self-inflicted deaths in prisons in England and Wales and model simulations to estimate the effect size. We found significant space-time clustering among 657 self-inflicted deaths in 90 prisons over 10 years but no space-time clustering among 430 deaths from natural causes in 87 prisons over this period. Model simulations with an imitation rate of 5.8% (CI 1%-11%) reproduced the observed space-time clustering.     

Global ethics: dimensions and prospects

Global ethics is an emerging discipline which has not yet reached maturity. The main tasks before it to gain maturity are: first, to achieve a greater integration of various domains of enquiry all of which are concerned with global normative issues. At a general level this includes integrating global ethics with cosmopolitanism, global justice and human right discourse. At the level of areas of concern, there needs to be greater integration of various areas such as development, trade, environment and climate change. And it must grapple with the question of diversity within universality: how far can diversity of practices be accommodated within a culturally sensitive universal framework? Second, there is the question of finding a shared normative framework with respect to the diverse worldviews that may lie behind this: what degree and kind of convergence/consensus are worth working for? Third, there is the task of creating the conditions for its own wider acceptance, which should include taking the idea of global citizenship seriously.     

Three-dimensional joint kinematics of ACL-deficient and ACL-reconstructed knees during stair ascent and descent

Mechanical environmental changes in the knee are induced by altered joint kinematics under cyclic loading during activities of daily living after anterior cruciate ligament (ACL) injury. This is considered a risk factor in progressive cartilage degeneration and the early onset of osteoarthritis following ACL injury and even after reconstructive surgery. The purpose of this study was to examine 3D joint kinematics of ACL-deficient and ACL-reconstructed knees to health controls during stair ascent and descent. A 3D optical video motion capture system was used to record coordinate data from reflective markers positioned on subjects as they ascended and descended a custom-built staircase. Spatiotemporal gait and knee joint kinematic variables were calculated and further analyzed. The ACL-deficient knees exhibited a significant extension deficit compared to the ACL-intact controls. A more varus and internally rotated tibial position was also identified in the ACL-deficient knees during both stair ascent and descent. The ACL-reconstructed knees exhibited less abnormality in both spatiotemporal gait parameters and joint kinematics, but these variables were not fully restored to a normal level. The kinematic profiles of the ACL-reconstructed knees were more similar to those of the ACL-deficient knees when compared to the ACL-intact knees. This suggests that the ACL-reconstructed knees had been "under-corrected" rather than "over-corrected" by the reconstructive surgery procedure. Findings from this study may provide more insight with respect to improving ACL reconstruction surgical techniques, which may aid the early progression of cartilage degeneration in ACL-reconstructed knees.