Results 261 to 270 of about 7,249,875 (307)
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“Fast” and “slow” responses in Nephrops
Comparative Biochemistry and Physiology, 1963Abstract 1. 1. An investigation eas made of the electrical and mechanical responses of Nephrops closer muscles to indirect stimulation via “fast” and “slow” motor axons. 2. 2. Most of the proximal muscle fibres showed large “fast” p.s.p.'s in response to single stimuli, but very small “slow” electrical responses at any frequency of ...
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A fast tube of response ray‐tracer
Medical Physics, 2006A ray‐tracing algorithm is proposed to quickly approximate volumes of intersection between an arbitrary tube of response and a voxel array. The method is based on the idea of the Wu antialiased line tracer that is well known in the computer graphics community.
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A fast-response microthermocouple
Review of Scientific Instruments, 1993A fast-response chromel-alumel (and chromel-constantan) microthermocouple is described and its dynamic characteristics are measured. The microthermocouple features a microdisk junction 0.08 mm in diameter and 2.5 μm thick. Its time constant in turbulent flow of liquid Refrigerant-113 (a poor heat conductor) is measured to be ∼4.6 ms. This time constant
P. Beckman +3 more
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Response of the Pancreas to Fasting
Journal of Pediatric Gastroenterology and Nutrition, 1984The results presented show striking differences in the response of the exocrine pancreas to fasting in suckling versus adult rats. In adult rats, fasting led to an increase in lipase to amylase ratio with a particularly sharp decrease in amylase concentrations, a generalized decrease in total protein, amylase, trypsinogen and lipase contents, and a ...
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The glucagon response of fasting obese subjects
Metabolism, 1965Abstract The storage of liver glycogen in 7 obese fasting subjects was assessed by observing the response of peripheral blood glucose to the intravenous injection of glucagon. Three subjects who were receiving liberal diets prior to the study showed a subnormal response within the first 4 days of total food deprivation.
E N, HARO, S F, BLUM, W W, FALOON
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A fast subband room response simulator
2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2002In this paper we present a subband scheme to decrease the computational complexity of simulating room responses to acoustic signals, important for instance in microphone array systems. Besides, the new method offers added flexibility to the well known image method by allowing to choose the reflection coefficients of every frequency subband ...
Firas Jabloun, Benoît Champagne 0001
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Perceptual requirements for fast manual responses
Experimental Brain Research, 2003The on-line visual control of human movements can be exceptionally fast. Whether it is fast depends on the kind of visual information that is involved. In the present study we examine whether fast on-line control is specific to the magnocellular visual pathway.
Brenner, Eli, Smeets, Jeroen B.J.
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Fast, wideband search for spurious responses
Conference Record AUTOTESTCON '91 IEEE Systems Readiness Technology Conference Improving Systems Effectiveness in the Changing Environment of the '90s, 1992A high-speed, wideband, low-level spur test technique is presented, and its basic characteristics are described and compared with those of traditional test methods; i.e., sweeping or stepping a narrowband receiver. The system consists of a wideband tunable receiver whose IF output is analyzed by a high-speed, wideband tunable filter bank analyzer.
K. Cassidy, J. Snell
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Role of leptin in the neuroendocrine response to fasting
Nature, 1996A total deficiency in or resistance to the protein leptin causes severe obesity. As leptin levels rise with increasing adiposity in rodents and man, it is proposed to act as a negative feedback 'adipostatic signal' to brain centres controlling energy homeostasis, limiting obesity in times of nutritional abundance.
R S, Ahima +6 more
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Metabolic responses to exercise after fasting
Journal of Applied Physiology, 1986Fasting before exercise increases fat utilization and lowers the rate of muscle glycogen depletion. Since a 24-h fast also depletes liver glycogen, we were interested in blood glucose homeostasis during exercise after fasting. An experiment was conducted with human subjects to determine the effect of fasting on blood metabolite concentrations during ...
G L, Dohm +3 more
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