Among the diverse research fields and wide range of studies encompassed by environmental magnetism, the present work elaborates on critical aspects of the geochemistry of trace metals that emerged through years of original research in a variety of environmental compartments. This review aims at sharing the insights gained on (a) tracing metal pollution sources; and (b) identifying processes and...

Performance evaluation of electronic commerce processes requires an integrated vision of the capacities offered by computational resources, website functionalities, and resulting financial outcomes. Simulation is a tool that allows trying out alternative business configurations before implementation. This requires a method that articulates models construction, representing the relation between ...

The completion time and nonrenewable resources are traditionally considered for construction of project. When renewable resources, quality and some criteria considered for the project, the risk related to criteria has to be taken into account. Thus project planning problem can be defined as multicriteria decision problem under risk. In this paper, a project scheduling problem including time, co...

Information generated from economic evaluation is increasingly being used to inform health resource allocation decisions globally, including in low- and middle- income countries. However, a crucial consideration for users of the information at a policy level, e.g. funding agencies, is whether the studies are comparable, provide sufficient detail to inform policy decision making, and incorporate...

This paper introduces a simple evaluation function for multiple instance learning that admits an optimistic pruning strategy. We demonstrate comparable results to state of the art methods using significantly fewer computational resources.

As Bayesian networks are applied to larger and more complex problem domains, search for flexible modeling and more efficient in­ ference methods is an ongoing effort. Mul­ tiply sectioned Bayesian networks (MSBNs) extend the HUGIN inference for Bayesian networks into a coherent framework for flexible modeling and distributed inference. Lazy propagation extends the Shafer-Shenoy and HUG IN infer...

Vaccination has led to remarkable health gains over the last century. However, large coverage gaps remain, which will require significant financial resources and political will to address. In recent years, a compelling line of inquiry has established the economic benefits of health, at both the individual and aggregate levels. Most existing economic evaluations of particular health intervention...

The Information and Communications Technologies (ICT) labour market presents special interest due to its continuous changes, which reflect the rapid evolution of Informatics and its relative technologies. This study focuses on the investigation of various issues of human resource management related to the occupation of the ICT graduates and the employing policies adopted by the Greek enterprise...

The National Science Digital Library (NSDL: http://www.nsdl.org) is an NSF-funded program that supports the creation and dissemination of digital educational resources for all levels of science, technology, engineering, and mathematics education. NSDL is conducting a programwide evaluation of all its activities since the program’s inception in 2000, with the aim of inventorying achievements to ...