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Introducing the concept of the isodose for optimisation of decontamination activities in a radioactive fallout scenario

In the recovery phase after a radioactive release incident, it is important to be able to focus decontamination operations on the areas that contribute most to the radiation dose. Monte Carlo simulations were applied to determine the shielding effect of a building against radiation from various directions, also giving information on the dose contributions at various locations inside the building f

Modeling walking on a lightweight wooden floor

The most common sound insulation problem for lightweight timber structures is impact sounds from people walking. This is especially apparent in the low frequency range, due to differences in weight, stiffness, density and repartitioning as compared to more traditional materials. As lightweight timber structures increase their market share, the understanding of their behaviour and the ability to pr

Excretion Rate and Distribution Volumes in Common Marmoset Monkeys After Slow and Fast Injection of Gadobutrol

Common marmoset monkeys (Callithrix jacchus) are increasingly used in models of neurodegenerative diseases. Serial measurements of gadolinium excretion were performed using the dual flip angle method to map R1 on three animals in the wrist coil of a 3T whole-body system. R1 values were analyzed in a ROI in the straight sinus and fitted with a single compartment model. Slow injection of 0.3 mmol Ga

Twenty-first century remote sensing technologies are revolutionizing the study of tropical forests

The fields of tropical biology and conservation face significant transformations due to rapid technological developments in remote sensing. Other fields (e.g. Archeology) are experiencing this momentous change even more rapidly. In this article, we review some of the challenges that the fields of tropical biology and conservation face during the first quarter of the twenty-first century from the p

Quantifying changes on forest succession in a dry tropical forest using angular-hyperspectral remote sensing

The tropical dry forest (TDF) is one the most threatened ecosystems in South America, existing on a landscape with different levels of ecological succession. Among satellites dedicated to Earth observation and monitoring ecosystem succession, CHRIS/PROBA is the only satellite that presents quasi-simultaneous multi-angular pointing and hyperspectral imaging. These two characteristics permit the stu

Monitoring Flooding Damages in Vegetation Caused by Mining Activities Using Optical Remote Sensing

Ground removal during the mineral extraction in mine galleries provokes permanent changes in ground compacting during mine exploitation and after mine closure. In extreme cases, the loss of cohesion in ground layer over mines causes surface subsidence and eventually the emergence of flooded areas on the surface. Mining companies are obligated to the surveillance and mending of damages caused by th

Target detection of mine-related flooded areas using AISA-eagle data

The present research is developed in the frame of the R&D project GMES4Mining, which aims to support particular tasks within the different phases of a mining life cycle [1]. During the exploitation and after the closure of the mine, environmental and civil impacts may happen, due to changes in the compacting properties of the soil related to mining activities. In this paper, we focus in the em

Multi-Temporal Monitoring Of Ecological Succession In Tropical Dry Forests Using Angular-Hyperspectral Data (Chris/Proba)

The tropical dry forest is the largest and most threatened ecosystem in Latin America. Remote sensing can effectively contribute to the surveillance of conservation measurements and laws through the monitoring of natural protected areas, at the required temporal and spatial scales. CHRIS/PROBA is the only satellite that presents quasi-simultaneous multi-angular pointing and hyperspectral spectrosc

GMES4Mining: : GMES-based Geoservices for Mining to Support Prospection and Exploration and the Integrated Monitoring for Environmental Protection and Operational Security

The GMES4Mining R&D project started in summer 2011 with the purpose of supporting management in all phases of a mining cycle. In most states of the European Union, the mines are in phases of operation or reclamation, but in other countries there is an interest in prospecting and exploring new areas for mining. In order to support the implementation of legal responsibilities, GMES4Mining invest

Co-payment for unfunded additional care in publicly funded health care systems: ethical issues

The burdens of resource constraints in publicly funded healthcare systems urge decision makers in countries like Sweden, Norway and the UK to find new financial solutions. One proposal that has been put forward is co-payment—a financial model where some treatment or care is made available to patients who are willing and able to pay the costs that exceed the available alternatives fully covered by

Large-scale hydrological modelling of the Upper Paraná River Basin

The Upper Paraná River Basin (UPRB) has undergone many rapid land use changes in recent decades, due to accelerating population growth. Thus, the prediction of water resources has crucial importance in improving planning and sustainable management. This paper presents a large-scale hydrological modelling of the UPRB, using the Soil andWater Assessment Tool (SWAT) model. The model was calibrated an