Discovery and Presentation of Evidence in Adversary and Nonadversary Proceedings

In order to evaluate fully the advantage claimed for the adversary model we sought to add a third element that would test the hypothesis under a variety of conditions. The degree to which the evidence discovered in a case favors one party at the expense of another appeared to meet this criterion. This fact-distribution element is a pervasive condition of legal conflict resolution that, intuition suggests, may significantly influence information search and transmission. Further, this variable could be easily and accurately controlled by regulating the flow of favorable information acquired by the subjects during the experiment. The remainder of this article reports a laboratory experiment intended to cast light on both the specific claim made on behalf of the adversary system and the nature of information processing in legal systems generally

The decreasing radial wood stiffness pattern of some tropical trees growing in the primary forest is reversed and increases when they are grown in a plantation

International audienceBackground : This study examines the radial trend in wood stiffness of tropical rainforest trees. The objective was to determine if the type of growing environment (exposed plantation or dense primary forest) would have an effect on this radial trend. Methods : The axial elastic modulus of wood samples, representing a pith to bark cross-section, of six trees from several French Guianese species (two of Eperua falcata, one of Eperua grandiflora, two of Carapa procera and one of Symphonia gloubulifera) was measured using a dynamic "forced vibration" method. Results : Primary forest trees were observed to have a decrease in wood stiffness from pith to bark, whereas plantation trees, from the same genus or species, displayed a corresponding increase in wood stiffness. Juvenile wood stiffness appears to vary depending on the environment in which the tree had grown. Conclusion : We suggest that the growth strategy of primary forest trees is to produce wood resistant to selfbuckling so that the height of the canopy may be obtained with the maximum of efficiency. In contrast, the growth strategy of the trees growing in an exposed plantation is to produce low-stiffness wood, important to provide flexibility in wind. Further experiments to study the behaviour of more species, with more individuals per species, growing across a range of physical environments, are required

Financial barriers for sports consumption : the dynamics of the income-expenditure relation

Purpose First, the income elasticities are calculated for different levels of income, for both the decision to spend money on sports and the amount of money that is spent. Second, the study researches whether different operationalisations of income (i.e. family versus personal) result in different elasticity values. Third, the effect of sports-specific and non-sports leisure variables on sports participation is investigated. Design/methodology/approach A representative dataset of 3,775 adults is used containing a wide variety of leisure characteristics, gathered by means of a face-to-face survey. By means of a Tobit regression model both the determining factors of sports expenditure and the income elasticities are analysed. Findings For lower income individuals, a rise in income has a relatively bigger influence on the probability to spend money on sports participation, than is the case for higher income individuals. A positive relationship is found with sex (male), education, number of minutes and disciplines of sports and membership of a socio-cultural organisation, while age, watching TV and attending cultural events have a negative effect. Social implications The study provides evidence that income-based segmentation of sports participants could turn out to be an efficient policy tool. By lowering the monetary-burden for lower incomes, it can be expected that participation rates can be raised efficiently. Originality/value For the first time the relationship between income and expenditure is explored for different levels of income and for two operationalisations of income. Moreover, the inclusion of non-sports leisure variables allows investigating relationships between sports consumption and other leisure activities

Deformation-Induced Melting in the Margins of the West Antarctic Ice Streams

Flow of glacial ice in the West Antarctic Ice Sheet localizes in narrow bands of fast-flowing ice streams bordered by ridges of nearly stagnant ice, but our understanding of the physical processes that generate this morphology is incomplete. Here we study the thermal and mechanical properties of ice-stream margins, where flow transitions from rapid to stagnant over a few kilometers. Our goal is to explore under which conditions the intense shear deformation in the margin may lead to deformation-induced melting. We propose a 2-D model that represents a cross section through the ice stream margin perpendicular to the downstream flow direction. We limit temperature to the melting point to estimate melt rates based on latent heat. Using rheology parameters as constrained by laboratory data and observations, we conclude that a zone of temperate ice is likely to form in active shear margins.Earth and Planetary SciencesEngineering and Applied Science