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An experimental study was undertaken to highlight the potential ecotoxicological impact of the herbicide diuron on biofilms during flooding events in a small river (Morcille) in the Beaujolais vineyard area (France). We investigated the responses of chronically contaminated biofilms exposed to short-term pulses (3 h) of diuron. Biofilms were grown in indoor(More)
Developing new biological indicators for monitoring toxic substances is a major environmental challenge. Intensive agricultural areas are generally pesticide-dependent and generate water pollution due to transfer of pesticide residues through spray-drift, run-off and leaching. The ecological effects of these pollutants in aquatic ecosystems are(More)
Silver nanoparticles (AgNP) are increasingly used as antimicrobials in consumer products. Subsequently released into aquatic environments, they are likely to come in contact with microbial communities like periphyton, which plays a key role as a primary producer in stream ecosystems. At present, however, very little is known about the effects of(More)
This study aimed to explore the use of antioxidant enzyme activities (AEA) and biofilm metal accumulation capacity in natural communities as effect-based indicator of metal exposure in fluvial systems. To achieve these objectives, an active biomonitoring using fluvial biofilm communities was performed during 5 weeks. Biofilm was colonized over artificial(More)
1 S. Morin, S. Pesce, A. Tlili, M. Coste, B. Montuelle 2 a Cemagref, UR REBX, 50 avenue de Verdun, F-33612 Cestas cedex, France 3 b Cemagref, UR QELY, 3 bis quai Chauveau – CP 220, F-69366 Lyon, France 4 * Corresponding author. Email: soizic.morin@cemagref.fr; tel.: +33 557 892721; fax: +33 5 557 890801. 6 7 Abstract 8 Vineyard areas are important causes of(More)
Aquatic ecosystems face variable exposure to pesticides, especially during floodings which are associated with short bursts of high contaminant concentrations that influence biological systems. A study was undertaken to highlight the impact of the herbicide diuron applied in mixture with the fungicide tebuconazole on natural periphyton during flooding(More)
Pollution-induced community tolerance (PICT) concept is based on the assumption that the toxicant exerts selection pressure on the biological communities when exposure reaches a critical level for a sufficient period of time and therefore sensitive species are eliminated. However, induced tolerance of microbial biofilm communities cannot be attributed(More)
Many researchers proved the efficiency of using educational games in the learning field. Thanks to the new wave of mobile technology, these games became even possible to run on mobile devices. On the other hand, various learners found learning the "computer architecture" subject dry and hard using the tradition way in classrooms. This paper presents a new(More)
Recently, games have started to be used in the educational field to teach different subjects. In fact, according to different research works, educational games have made learners more motivated and interested in learning. At the same time, learning analytics is gaining an increasing attention because it supports evaluating the learner, the given courses and(More)
The rapid proliferation of silver nanoparticles (AgNP) in industry and the environment requires realistic toxicity assessments based on approaches that consider the biological complexity of ecosystems. Here we assessed the acute toxicity of carbonate-coated AgNP and, for comparison, AgNO3 (Ag(+)) by using a model system consisting of decomposing plant(More)