Results 201 to 210 of about 849,615 (264)

Temperature sensing and cold acclimation

Current Opinion in Plant Biology, 2001
The fundamental question in cold acclimation is how do plants perceive the low but nonfreezing temperatures that activate cold acclimation responses. New findings in the past year suggest that changes in membrane fluidity, cytoskeleton rearrangement, and calcium influxes are among the earliest events taking place in plants upon exposure to low ...
J, Browse, Z, Xin
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Bioaugmentation for nitrification at cold temperatures

Water Research, 2004
Bioaugmentation of nitrifying bacteria for short solids retention time (short-SRT) nitrification is an attractive alternative for wastewater treatment plants in cold climates or for those in the process of upgrading to include nitrification. One possible source of ammonia for the production of nitrifying bacteria is the liquor generated during the ...
M A, Head, J A, Oleszkiewicz
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Temperature and the cold pressor test

The Journal of Pain, 2004
As a method of experimental pain induction, the cold pressor test is thought to mimic the effects of chronic conditions effectively. A survey of previous studies using the cold pressor, however, revealed a lack of standardization and control of water temperature, questioning comparability and reliability. This study reports the influence of temperature
Mitchell, Laura A., Macdonald, Raymond A.R., Brodie, Eric E.   +2 more
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Low Temperatures and Cold Molecules

2008
The Chemistry of Cold Interstellar Cloud Cores Gas-Phase Reactive Collisions at Very Low Temperatures: Recent Experimental Advances and Perspectives The Study of Cold Collisions Using Ion Guides and Traps Theory of Low-Temperature Gas-Phase Reactions Molecular Spectroscopy at Low Temperatures: A High-Resolution Infrared Perspective The Production and ...
S.Y.T. van der Meerakker, H.L. Bethlem, G. Meijer   +2 more
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Finger and Toe Temperatures on Exposure to Cold Water and Cold Air

Aviation, Space, and Environmental Medicine, 2008
Subjects with a weak cold-induced vasodilatation response (CIVD) to experimental cold-water immersion of the fingers in a laboratory setting have been shown to have a higher risk for local cold injuries when exposed to cold in real life. Most of the cold injuries in real life, however, occur in the foot in cold air rather than in the hand in cold water.
van der Struijs, N.R., van Es, E.M., Raymann, R.J., Daanen, H.A.M.   +3 more
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Effect of Cold‐Temperature Shock on Nitrification

Water Environment Research, 2007
Nitrification is known as the most temperature‐sensitive step among the biological processes in wastewater treatment. The purpose of this study was to investigate the effect of temperature on nitrification, in the case of a sharp decrease of temperature, and to compare this effect with that of a gradual temperature decrease.
Jong Hyuk, Hwang, Jan A, Oleszkiewicz
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