MRI E-Conference electronic conference on ‘Marine Research Infrastructures (MRI): The need for better Information and Co-ordination’ 26-30 april 2004, final report

The MRI E-conference was an initiative of VLIZ and AWI in collaboration with EurOcean, ESF/Marine Board and IOC/UNESCO. The objective of this forum was to discuss the needs and expectations of the Scientific Community towards a common European approach for optimizing the coordination of marine research infrastructure. All the points made by the contributors are summarised and bundled in this final report

Report of the Biological Data Products Workshop of the European Marine Observation and Data Network (EMODnet)

From 25 till 26 of February 2010, the Flanders Marine Institute (VLIZ) organized a workshop on biological data products in Oostende, Belgium. This workshop was organized within the framework of the upcoming European Marine Observation and Data Network, EMODnet, launched by the Maritime Policy of the European Commission. 57 participants from 42 excellent institutes involved in marine biological data collection, marine research and marine policy across Europe attended the workshop. The workshop had three main objectives: (1) to discuss the marine biological data availability and gaps in Europe, (2) to demonstrate the prototype of the EMODnet biological data portal to different user groups and (3) to define a set of derived biological data products relevant for private bodies, public authorities and researchers. A huge amount of reliable European marine biological data and information was presented to the public. These data are available and despite some temporal, spatial and taxonomic limitations, data are already very useful for analyses. There was a consensus amongst workshop participants that the look and feel and functionalities of the EMODnet biological prototype portal, visualizing both data observations and data products, were meeting the requirements. Although the user groups were very diverse, being people from the scientific community, people involved in the European marine policy and coastal and marine practitioners, a number of striking similarities amongst data products were found. In the different user discussion groups, four different sets of marine biological data products were identified as priority biological data products being: (1) species distribution maps and trends, (2) species sensitivity and vulnerability maps, (3) species attributes (functional groups, HAB’s, invasive species, red list or protected species) and (4) biodiversity indices. Within the biological EMODnet preparatory action, a few data analysis workshops will be organized in the near future (2011) to produce some of the data products identified during this workshop. The same community and other relevant stakeholders, identified during the meeting will be involved in this process

Quantitative pretreatment VOI analysis of liver metastases 99mTc-MAA SPECT/CT and FDG PET/CT in relation with treatment response to SIRT

Using quantitive VOI analysis, the percentage Tc-99m-MAA uptake and SUVmax and mean values of liver metastases obtained prior to SIRT were related to treatment response using both a lesion-based and clinical dichotomous approach. Based on the VOI % of Tc-99m-MAA activity, the estimated Y-90-microspheres activity/cc (MBq/cc) was calculated from the effective dose injected. Baseline VOI FDG PET SUVmean and max values and estimated MBq/cc values were related to treatment response using a lesion-based approach (% change in SUVmean >= 50%) and a clinical dichotomous approach. Fifteen treatment sessions were analyzed (13 patients). Using the lesion-based approach (12 treatment sessions) 40 lesions responded and 37 did not. SUVmax and mean values proved significantly different between non-responding and responding lesions; 18:6 (SD 10.8) versus 13.5 (SD 8.4) for SUVmax (p = 0.02) and 11.4 (SD 3.8) versus 6.3 (SD 4.5) for SUVmean (p = 0.002). Using the clinical dichotomous approach (15 treatment sessions / 11 responding), 91 lesions were analyzed; 57 responded. VOI volumes and estimated Y-90-loaded glass microspheres activity (MBq/cc) did not differ between responders and non responders; 24 cc (SD 27) versus 21 cc (SD 21 cc) (p = 0.4) and 1.95 MBq/cc (SD 1.1 MBq/cc) versus 1.90 MB/cc (SD 2.7 MBq/cc) (p = 0.92). On the contrary, SUVmax and mean values proved significantly different between responders and non-responders; 23.7 (SD 9.8) versus 9.4 (SD 3.8) for SUVmax (p = 0.0001) and 13.1 (SD 8.1) versus 4.9 (SD 1.4) for SUVmean. Conclusion: These findings suggest that in patients presenting with high baseline SUVmax and mean values, the administration of higher activities or alternatively, other potentially more useful treatment options might be considered

Academische studiedag: 5 Jaar strand-natuurreservaat 'De Baai van Heist' - De Vlaamse stranden: steriele zandbakken of natuurpatrimonium? Zeebrugge, 14 juni 2002

The management of the natural reserve 'De Baai van Heist' focuses not only on the implementation of European Directive

Europese duurzaamheidsindicatoren voor kustgebieden in Nederland: een eerste inventarisatie = European sustainability indicators for coastal zones in The Netherlands: a first inventory

The Directorate-General Water of the Dutch Ministry of Public Works and Water Management has appointed the National Institute for Coastal and Marine Management (RIKZ) and Flanders Marine Institute (VLIZ) to draw up an inventory of the ED sustainability indicators for its coasts. This document provides a first assessment of sustainability in our coastal zone from a common European point of view. It depicts the findings for the 27 EU sustainability indicators supported by a brief trend analysis where feasible

Amplitude and frequency modulation control of sound production in a mechanical model of the avian syrinx

Birdsong has developed into one of the important models for motor control of learned behaviour and shows many parallels with speech acquisition in humans. However, there are several experimental limitations to studying the vocal organ – the syrinx – in vivo. The multidisciplinary approach of combining experimental data and mathematical modelling has greatly improved the understanding of neural control and peripheral motor dynamics of sound generation in birds. Here, we present a simple mechanical model of the syrinx that facilitates detailed study of vibrations and sound production. Our model resembles the `starling resistor', a collapsible tube model, and consists of a tube with a single membrane in its casing, suspended in an external pressure chamber and driven by various pressure patterns. With this design, we can separately control `bronchial' pressure and tension in the oscillating membrane and generate a wide variety of `syllables' with simple sweeps of the control parameters. We show that the membrane exhibits high frequency, self-sustained oscillations in the audio range (>600 Hz fundamental frequency) using laser Doppler vibrometry, and systematically explore the conditions for sound production of the model in its control space. The fundamental frequency of the sound increases with tension in three membranes with different stiffness and mass. The lower-bound fundamental frequency increases with membrane mass. The membrane vibrations are strongly coupled to the resonance properties of the distal tube, most likely because of its reflective properties to sound waves. Our model is a gross simplification of the complex morphology found in birds, and more closely resembles mathematical models of the syrinx. Our results confirm several assumptions underlying existing mathematical models in a complex geometr