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Sebesvari Zita Rodrigues Sandrina Renaud Fabrice 《Regional Environmental Change》2017,17(7):1907-1920
Regional Environmental Change - Efficient, equitable, and transboundary management of the water resources of the Mekong River Basin (MRB) is challenged by ongoing and accelerating alteration of the... 相似文献
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Emilie Deletre Bertrand Schatz Denis Bourguet Fabrice Chandre Livy Williams Alain Ratnadass Thibaud Martin 《Chemoecology》2016,26(4):127-142
The overall interest in environmentally safe pest control methods and the rise of insecticide resistance in pest populations have prompted medical and agricultural entomology research on insect repellents in recent years. However, conducting research on repellent is challenging for several reasons: (1) the different repellent phenomena are not well defined; (2) it is difficult to test for and quantify repellent; (3) the physiological mechanisms are poorly known; (4) the field efficacy appears to be highly variable. Here, we identified five different types of repellent: expellency, irritancy, deterrency, odor masking and visual masking, and described behavioral bioassays to differentiate between them. Although these categories are currently defined by their behavioral response to different stimuli, we suggest new definitions based on their mechanism of action. We put forward three main hypotheses on the physiological mechanism: (1) a dose effect that modifies the behavior, (2) a repellent mechanism with specific receptors, or (3) inhibition of the transduction of neural information. 相似文献
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Study of the Degradation of Poly(ethyl glyoxylate): Biodegradation, Toxicity and Ecotoxicity Assays 总被引:1,自引:1,他引:0
Benjamine Belloncle Claude Bunel Laurence Menu-Bouaouiche Olivier Lesouhaitier Fabrice Burel 《Journal of Polymers and the Environment》2012,20(3):726-731
Biodegradation of poly (ethyl glyoxylate) (PEtG), a functionalized polyacetal, was investigated over 6?month according to ASTM 5988-96 modified method and compared to micronized cellulose. More than 95?% of the polymer was converted into CO2 over that period attesting the biodegradability of PEtG. The degradation by-products toxicity and ecotoxicity were evaluated. Toxicity was checked using an innovant non-mammalian toxicological model using the nematode Caenorhabditis elegans. Ecotoxicity was performed using a plant growth test with cress (Lepidium Sativum), and barley (Hordeum vulgare). In all cases, results concluded on the harmlessness of PEtG and relative by-products. 相似文献
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