Search Results - "Hewitt, D. P."

The influence of the North Atlantic Oscillation on the physical, chemical and biological characteristics of four lakes in the English Lake District by George, D. G., Maberly, S. C., Hewitt, D. P.

“…Summary 1. Thirty‐six years of winter meteorological and limnological measurements from four lakes in the English Lake District are analysed and related to…”
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Improving the response of optical phase modulators in SOI by computer simulation by Hewitt, P.D., Reed, G.T.

“…This paper reports on the simulation of a low-loss single-mode optical phase modulator fabricated in silicon-on-insulator (SOI) material. The device operates…”
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Biotic and abiotic influences on the recruitment of male perch in Windermere, U.K by Paxton, C. G. M., Winfield, I. J., Fletcher, J. M., George, D. G., Hewitt, D. P.

“…Perch Perca fluviatilis recruitment (based on the catch per unit effort, CPUE, of 2 or 3 year male perch) varied greatly from 1941 to 1995 in Windermere, U.K.,…”
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impact of year-to-year changes in the weather on the dynamics of Daphnia in a thermally stratified lake by George, D. G, Hewitt, D. P

“…The factors influencing the seasonal dynamics of Daphnia in a thermally stratified lake (Esthwaite Water) are described and related to long-term changes in the…”
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Improved modulation performance of a silicon p-i-n device by trench isolation by Hewitt, P.D., Reed, G.T.

“…This paper reports on the simulation of the dc and transient performance of a p/sup +/-i-n/sup +/ single-mode optical phase modulator suitable for…”
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A novel optical phase modulator design suitable for phased arrays by Jackson, S.M., Hewitt, P.D., Reed, G.T., Tang, C.K., Evans, A.G.R., Clark, J., Aveyard, C., Namavar, F.

“…A new design of optical phase modulator in SIMOX has been demonstrated, which allows duplication of active waveguides with a minimum requirement for external…”
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Investigation of first year biotic and abiotic influences on the recruitment of pike Esox lucius over 48 years in Windermere, U.K by Paxton, C. G. M., Winfield, I. J., Fletcher, J. M., George, D. G., Hewitt, D. P.

“…Estimated pike Esox lucius recruitment varied by a factor of 16 for females from 1944 to 1991 and by a factor of 27 for males from 1943 to 1990 in Windermere,…”
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Placental Expression of Peroxisome Proliferator-Activated Receptors in Rat Pregnancy and the Effect of Increased Glucocorticoid Exposure by HEWITT, Damien P, MARK, Peter J, WADDELL, Brendan J

“…Peroxisome proliferator-activated receptors (PPARs) are members of the nuclear hormone receptor superfamily of ligand-activated transcription factors. Recent…”
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Responses of the phytoplankton to a deliberate attempt to raise the trophic status of an acidic, oligotrophic mountain lake by Reynolds, C S, Jaworski G H M, Roscoe, J V, Hewitt, D P, George, D G

“…The paper reports the impact of a sharp artificial enrichment of the available phosphorus in a small, acidic and oligotrophic corrie lake and its effects upon…”
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Sex ratio changes in the long-term Windermere pike and perch sampling program by Paxton, C. G. M., Fletcher, J. M., Hewitt, D. P., Winfield, I. J.

“…– Analysis of the Windermere (England), Perca fluviatilis (1965–1997) and Esox lucius (1943‐1997) fishery data indicates there have been substantial changes in…”
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The influence of year‐to‐year variations in winter weather on the dynamics of Daphnia and Eudiaptomus in Esthwaite Water, Cumbria by George, D. G., Hewitt, D. P.

“…1. Micro‐crustacea of the genus Daphnia and Eudiaptomus have evolved different physiological mechanisms for coping with life in a rapidly changing environment…”
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The relationship between spatial distribution and diet of Arctic charr, Salvelinus alpinus, in Loch Ness, U.K by WINFIELD, Ian J, BEAN, Colin W, HEWITT, Diane P

“…The pelagic fish community of Loch Ness, U.K., is dominated by Arctic charr, Salvelinus alpinus. Previous studies have shown that the distribution of…”
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The population dynamics of Keratella cochlearis in a hypereutrophic tarn and the possible impact of predation by young roach by Hewitt, D. P., George, D. G.

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The influence of year-to-year variations in winter weather on the dynamics of Daphnia and Eudiaptomus in Esthwaite Water, Cumbria by George, D G, Hewitt, D P

“…1. Micro-crustacea of the genus Daphnia and Eudiaptomus have evolved different physiological mechanisms for coping with life in a rapidly changing environment…”
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Stringing up the Pearls:  Self-Assembly, Optical and Electronic Properties of CdSe− and Au−LiMo3Se3 Nanoparticle−Nanowire Composites by Osterloh, Frank E, Martino, Jason S, Hiramatsu, Hiroki, Hewitt, Daniel P

“…Chevrel-type LiMo3Se3 nanowires dissolved in dimethyl sulfoxide were decorated with 13 nm citrate ligated Au particles (water) and 6 nm trioctylphosphineoxide…”
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Responses of the phytoplankton to a deliberate attempt to raise the trophic status of an acidic, oligotrophic mountain lake by REYNOLDS, C. S, JAWORSKI, G. H. M, ROSCOE, J. V, HEWITT, D. P, GEORGE, D. G

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