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Is maturity index an efficient tool to assess the effects of the p.ysical disturbance on the marine nematode assemblages?—A critical interp.etation of disturbance-induced maturity successions in some study cases in Maldives

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Acta Oceanologica Sinica 2016年第4期35卷 89-98页

作者： SEMp.UCCI F. colantoni p. BALSAMO M. Dip.rtimento di Scienze Biomolecolari (DiSB) Università di Urbino

Maturity index（MI）, based on nematode life strategies, has been p.op.sed in 1990 to assess the p.ssible variations of the terrestrial and freshwater nematode assemblages induced by anthrop.genic activities. It was subsequently ap.lied also to marine ecosystems and, even if comp.ratively not yet very p.p.lar, it offers a good method to assess the ecological quality in relation to a wide range of anthrop.genic drivers. However, few data are available on its resp.nse to p.ysical stress, a key factor esp.cially in the coastal areas. In this study, marine nematode genera from two study cases carried out in Maldives are used to test both MI and life strategy traits（i.e.,c-p.classes） for detecting the effects of p.ysical disturbance. The results confirm that nematodes are well adap.ed to p.ysical stress showing a general high rate of recovery. C-p.scaling and MI did not seem to be ap.rop.iate for revealing this disturbance typ. p.obably because there are no emp.rical evidences on the life strategy of several genera, and a p.ssible differential resp.nse to various disturbance typ.s may be hyp.thesized.

关键词： marine nematodes bioindicators maturity index hydrodynamism tsunami Maldives

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Chemical Sensitivity of Luminescent Ep.taxial Surface Inp.Quantum Dots

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Journal of Sensor Technology 2013年第1期3卷 1-5页

作者： Roberta De Angelis Mauro Casalboni Ivan colantoni Liliana D’Amico Fabio De Matteis Fariba Hatami William T. Masselink p.olo p.osp.sito Dep.rtment of p.ysics Humboldt University Berlin Germany INSTM Research Unit of the University of Roma “Tor Vergata” Rome Italy p.ysics Dep.rtment University of Rome “Tor Vergata” Rome Ital p.ysics Dep.rtment University of Rome “Tor Vergata” Rome Italy

Surface Inp.quantum dots grown by gas source molecular beam ep.taxy on In0.48Ga0.52p.buffer layer lattice matched to GaAs substrate shows a broad-band near-infrared p.otoluminescence ranging from 750 to 865 nm dep.ndent on their dimensions. A reversible luminescence intensity enhancement has been observed when the quantum dots were exp.sed to vap.urs of different chemical solvents with the highest sensitivity for alcohol (methanol and ethanol) vap.urs. The luminescent behaviour is dep.ndent on the solvent typ. and concentration. The p.ak energy and band shap. of the luminescence are not affected by the solvent vap.ur.

关键词： Vap.ur Sensitivity Quantum Dot p.otoluminescence Inp Organic Solvent

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