This paper proves that, in a general financial model with incomplete markets, the multiplicity of certainty equilibria is not necessary for the existence of sunspot effects. These effects are present, by definition, when real economic variables differ across realizations of extrinsic uncertainty. In a financial model of incomplete markets with identical payouts across realizations of extrinsic ...

PURPOSE To determine the benefits for patients who received an electric powered inoor/outdoor chair (EPIOC) and to quantify their perceived changes to their quality of life. METHOD Community-based cohort study of all patients provided with an EPIOC over 4 months; and followed up about 3 months later in a community served by a regional wheelchair service in North West London (population about ...

The effects of copper on the ageing precipitation behavior of as-quenched and pre-aged AA6016 aluminum alloy were studied by differential scanning calorimetry (DSC), Vickers hardness measurement and transmission electronic microscopy (TEM). The results indicate that the addition of copper facilitates the growth of clusters (GP I) to the critical size during pre-ageing. Therefore, the addition o...

This paper aims to propose a reliable location-allocation model where facilities are subject to the risk of disruptions. Since service facilities are expected to satisfy random and heavy demands, we model the congested situations in the system within a queuing framework which handles two sources of uncertainty associated with demand and service. To insure the service quality, a minimum limit re...

ion + refinement formalisation Figure 2: Different levels of specification To be able to prove required properties, an appropriate abstraction level must be chosen, so that a verification of the relevant functional and security properties is still possible. The behaviour of formal models at different abstraction levels can be compared using appropriate homomorphisms. In refinements of the model...

It was found that in the disaster-hit area, a communication supporting system using the existing mobile ad hoc network techniques cannot function as expected and communication would be interrupted from time to time, since they have not taken into consideration the sleep operation that is a very frequently used means for users of mobile terminals to increase their battery life time. In order to ...

BACKGROUND In high-risk births, the availability and concentration of neonatal resources in larger regional hospitals increases the chance of survival. The advantages of regionalization for low-risk deliveries are still unclear, but some studies have suggested that regionalization also is beneficial for low risk deliveries. The aim of the present study was to investigate both the relevance of r...

Both researchers and policy-making organizations have identified electronic prescribing (e-prescribing) systems as a means to improve quality in healthcare delivery. However, there are documented risks involved in integrating such clinical systems into healthcare processes. These risks generally fall into two categories. First, new technologies may not accomplish what they are designed to do. S...

This paper focuses on a measurement-based comparison of the handover for different mobility protocols: Mobile IPv4, Mobile IPv6 and Fast Handovers for Mobile IPv6. The paper studies the handover using active and passive measurements computing the handover latency, packet losses and the provided QoS level in a real testbed. Our experimental results show that there are severe QoS fluctuations bef...

BACKGROUND Malaria infection in pregnancy is a major risk factor for maternal and child death, and substantially increases the risk of miscarriage, stillbirth and low birthweight. The aim of this study therefore is to assess the prevalence and determinants of Intermittent preventive treatment of Malaria [IPTp] utilization by pregnant women in a rural town in Western Nigeria. METHODS This stud...