J-P. THISSEN

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In the frame of the DARE (Durable Apple Resistance in Europe) project, a collection of strains of Venturia inaequalis was established. It comprises 319 strains from 8 European countries, isolated from 48 different Malus species and M. x domestica cultivars. The pathogenicity of 39 strains from this collection was tested on a set of 8 differential hosts,(More)
In the Wadden Sea area, a total of 248 (sub)species of vascular plants are threatened in at least one subregion. Of these, 216 (sub)species are threatened in the entire area and are therefore placed on the trialteral Red List. 17 (sub)species of the listed vascular plants are (probably) extinct in the entire Wadden Sea area. The status of 47 (sub)species of(More)
The Wadden Sea Area extends from Den Helder in The Nether lands along the coast and the islands of the German Bight to Esbjerg in Denmark. It is a ne twork of tidal areas, channels, sandbars, mudflats, salt marshes and islands covering an area of about 900000 ha and thereby consti tutes the largest intert idal area in the world. About 10% of the area belong(More)
Airborne laboratory-animal allergens can be measured by several methods, but little is known about the effects of important differences in methodology. Therefore, methods used in research projects in The Netherlands, the UK, and Sweden were compared. Seventy-four sets of three parallel inhalable dust samples were taken by a single operator in animal(More)
The aim of the study was to compare four different immunological methods to analyse fungal alpha-amylase in flour dust samples. Three European research groups have independently developed four immuno assay based methods to measure alpha-amylase in air samples. Three of the methods use polyclonal antibodies and one method uses monoclonal antibodies. Eighty(More)
350000–400000 pairs of breeding birds as well as 10–12 millions of migratory waterbirds use the Danish-German-Dutch Wadden Sea as a feeding, roosting and moulting area. The exact number of migrating birds using the Wadden Sea is unknown. 4 Wadden Sea breeding bird species are (probably) extinct in the area, e.g. Caspian Tern (Sterna caspia) and Roseate Tern(More)
INTRODUCTION: In vivo gene electrotransfer (ET) is frequently used in preclinical gene therapy studies. The transient permeation of cell membranes facilitates therapeutic material transfection without resorting to viral vectors. Over the past decade, many studies have attempted to optimize ET protocols to increase efficiency while reducing variability of(More)
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