Publicaties
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Evaluation of biological properties and fate in the environment of a new class of biosurfactants Universiteit Gent
A methodology using option pricing for evaluating a suitable discount rate in environmental management Vrije Universiteit Brussel
With the present analysis the authors propose an approach for determining an adequate discount rate in environmental management problems, more specifically radioactive waste management. It is shown that the classical Black-Scholes pricing formula can be used for determining the adequate present funding to be set-aside for the future. The average funding is equal to the net present value (NPV) of the future costs, including technical-scenario ...
Periodic Time-Series Modeling of Environmental Proxy Records with Guaranteed Positive Growth Rate Estimation Vrije Universiteit Brussel
Identifying a periodic time-series model from environmental records, without imposing the positivity of the growth rate, does not necessarily respect the time order of the data observations. Consequently, subsequent observations, sampled in the environmental archive, can be inversed on the time axis, resulting in a non-physical signal model. In this paper an optimization technique with linear constraints on the signal model parameters is ...
The specificity of marine ecological indicators to fishing in the face of environmental change: a multi-model evaluation
Ecological indicators are widely used to characterise ecosystem health. In the marine environment, indicators have been developed to assess the ecosystem effects of fishing to support an ecosystem approach to fisheries. However, very little work on the performance and robustness of ecological indicators has been carried out. An important aspect of robustness is that indicators should respond specifically to changes in the pressures they are ...
Stratigraphy, palaeontology and geochemistry of the late Neoproterozoic Aar Member, southwest Namibia: Reflecting environmental controls on Ediacara fossil preservation during the terminal Proterozoic in African Gondwana Vrije Universiteit Brussel
Common, Ediacaran fossils are well preserved in a Late Neoproterozoic (ca. 545 Ma) shallow marine sequence, described here as the Aar Member of the Dabis Formation (Kuibis Subgroup, Nama Group), near Aus in southwest Namibia. This 31–38 m thick, shale-dominant unit records the transition from fluvial-shallow marine Kliphoek Sandstone to open marine limestone of the Mooifontein Member of the Zaris Formation, deposited on a subsiding continental ...
Transforming Landscapes of Southwest Anatolia: Modeling Social and Environmental Change from the Middle to Late Holocene Using Predictive Land-use and Cropland Reconstructions KU Leuven
The suitability of landscapes to accommodate various human subsistence strategies is dynamic, and the result of complex interactions between natural and human factors that are difficult to reconstruct from palaeoenvironmental data alone. The long-term multidisciplinary nature of datasets common to archaeological research, though, can provide unique insights into landscape change over time. In particular, the material record can help to mitigate ...
Monod kinetics rather than a first-order degradation model explains atrazine fate in soil mini-columns: Implications for pesticide fate modelling Universiteit Gent KU Leuven
The impact of environmental and biological factors on the resting heart rate of dogs as assessed using 20 years of data from safety pharmacology studies Universiteit Antwerpen
Introduction: A safety pharmacology study detects and evaluates potential side effects of a new drug on physiological function at therapeutic levels and above and, in most cases, prior to the initiation of clinical trials. The aim of this study was to investigate the effects of environmental and biological factors on resting heart rate (HR), a representative cardiac parameter in cardiovascular safety pharmacology. Methods: Over twenty years, 143 ...
Speleothem-based chronology and environmental context of deposits from the Mishin Kamik Cave, NW Bulgaria – A contribution to the archaeological study of the Late Pleistocene human occupation in the Balkans Vrije Universiteit Brussel KU Leuven
ABSTRACT The Balkan Peninsula represents one of the most important human pathways into and out of Europe during the Pleistocene. Mishin Kamik cave, located in the karst region of Western Stara Planina, has a rich faunal content and shows promising features indicating a human occupation site with the discovery of potential bone artefacts and an intriguing accumulation of bear skulls and bones. Petrographic study and U-series dating of a ...