Skip to content. | Skip to navigation

Personal tools

You are here: Home

Search results

RSS Subscribe to an always-updated RSS feed.

2177 items matching your search terms.
Filter the results.
Item type



































New items since



Sort by relevance · date (newest first) · alphabetically
Proceedings Reference The Late Devonian spermatophytes: what about the male organs ?
The spermatophytes first evolved by the end of the Middle Devonian, some 390 million years ago. The Famenian deposits record what has been interpreted as the first seed plant radiation. In these levels, a surprisingly large seed plant diversity is observed. Indeed, up to seventeen ovule species are found occupying a wide morphological spectrum. In Belgium, ovules are associated in nearly all localities to sporangiate axes presenting a very similar vegetative morphology. They consist un a dichotomous branchin system bearing terminally a group of sporangia. Sporangia are small and round to oval in shape. They are borne on the recurved tips of a small dichotomous organ. This communication will focus on the description and discussion of the evolutionary implications of these sporangia that we consider as the microsporangiate organs of Late Devonian spermatophytes.
Located in Library / RBINS Staff Publications
Proceedings Reference Natuursteen in Oost-Brabant als bindteken tussen natuur en cultuur
Streekeigen natuursteen is een duurzaam en een bijzonder milieuvriendelijk product. De gesteenten ondergaan geen enkele transformatie en in de oudste gebouwen gaan ze al 1000 jaar mee. Toch zijn ze niet vergankelijk en is zorg geboden, vooral voor de ijzerzandsteen van het Hageland. Tegelijk geven ze vorm en kleur, blijven ze afkerig van standaardisering en dragen ze bij tot de uitstraling van het gebouw en zijn omgeving. Natuurgesteenten zijn niet alleen iets van het verleden, in gebruik ondergaan ze duidelijk een evolutie in functie van beschikbaarheid, veelzijdigheid en smaak en kunnen vandaag nog hun bijdrage leveren tot de opwaardering van het gebouwenpark, zonder aan de globalisering ten prooi te moeten vallen.
Located in Library / RBINS Staff Publications
Proceedings Reference Herbaceous Plant Availability and Use by Western Lowland Gorillas in South East Cameroon
Located in Library / RBINS Staff Publications
Proceedings Reference Improving the Accuracy of Monitoring Great Apes in the Wild: A Case Study from Southeast Cameroon
Located in Library / RBINS Staff Publications
Proceedings Reference Impacts of Western Lowland Gorillas on the Regeneration of Logged Forests: Preliminary Insights in a Gabonese Logging Concession
Located in Library / RBINS Staff Publications
Proceedings Reference The Enhancement of Secondary Succession by Western Lowland Gorillas (Gorilla gorilla gorilla) in a Moist Tropical Forest of Southeast Cameroon
Located in Library / RBINS Staff Publications
Proceedings Reference Geochemistry and XRD to differentiate oolitic ironstone geological levels from Germany, Belgium and France and application to the archaeological artefacts.
Located in Library / RBINS Staff Publications
Proceedings Reference Geological record and sedimentology of the Palaeozoic oolitic ironstone deposits in Western Europe. Spatial relationships with the Linienbandkeramik settlements (LBK) in Belgium.
Located in Library / RBINS Staff Publications
Inproceedings Reference Detecting algae blooms in European waters
A near real-time algal bloom detection service has been developed for European waters. Daily chlorophyll a data from Envisat/MERIS and Aqua/MODIS are compared to a predefined threshold map to determine whether an algal bloom has occurred. The design of the threshold map takes account of two factors. Firstly, over European waters regional differences in typical and extreme levels of chlorophyll a span two orders of magnitude. A concentration, e.g. 2 μg/1, that would be considered as a bloom concentration in one region could correspond to a relatively low concentration in another region. Secondly, the errors in satellite chlorophyll a can be significant in coastal waters effectively giving an artificial background level in satellite images. To account for these two factors a threshold map has been designed using satellite chlorophyll a data from a previous year, with separate threshold maps for each sensor to take account of sensor-specific bias. This threshold is defined here as the top 10\% level of a previous year's chlorophyll a data. The results of algal bloom detection in various regions are analysed in terms of bloom timing, duration and strength. Differences between the performance for the MERIS and Aqua sensors are also discussed.
Located in Library / RBINS Staff Publications
Inproceedings Reference MOS sensitivity for detecting chlorophyll and suspended matter over coastal and inland waters by forward and inverse modelling
Located in Library / RBINS Staff Publications