The management of scarce groundwater resources involves numerous complex challenges, not least developing appropriate allocation limits for extraction and establishing efficient and equitable allocation between competing uses at various interacting scales. Practitioners, lawmakers and scholars continue to struggle with designing water governance approaches that adequately address these challeng...

We study conjunctive query answering and first-order rewritability of conjunctive queries for binary guarded existential rules. In particular, we prove that the problem of establishing whether a given set of binary guarded existential rules is such that all conjunctive queries admit a first-order rewriting is decidable, and present a technique for solving this problem. These results have a impo...

A variety of approaches have been used to infer decision rules used by consumers. These approaches include protocol methods, self-reports, and non-linear compensatory and noncompensatory models of judgement. But there is little work on inferring the rules from choice or preference data, a situation that stands in contrast with the great progress in data-analytic techniques for linear models. Th...

[1] Potential climate change effects on aspects of conjunctive management of water resources can be evaluated by linking climate models with fully integrated groundwater– surface water models. The objective of this study is to develop a modeling system that links global climate models with regional hydrologic models, using the California Central Valley as a case study. The new method is a suppl...

During the past decade, there has been an extensive investigation of the computational complexity of the consistent answers of Boolean conjunctive queries under primary key constraints. Much of this investigation has focused on self-join-free Boolean conjunctive queries. In this paper, we study the consistent answers of Boolean conjunctive queries involving a single binary relation, i.e., we co...

The challenges of how to respond to climate change and ensure sustainable development are currently high on the political agenda among the world’s leading nations. The Clean Development Mechanism (CDM) is part of the global carbon market developing rapidly as part of the Kyoto response towards mitigation of global warming. One of the aims of the CDM is to achieve sustainable development in deve...

Global mental health (GMH) is a growing domain with an increasing capacity to positively impact the world community's efforts for sustainable development and wellbeing. Sharing and synthesizing GMH and multi-sectoral knowledge, the focus of this paper, is an important way to support these global efforts. This paper consolidates some of the most recent and relevant 'context resources' [global mu...