1,888 research outputs found
Two-variable modularized fast polynomial transform algorithm for2-D discrete Fourier transforms
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Ca2+-dependent exocytosis in the somata of dorsal root ganglion neurons
Full text linkAbstractUsing capacitance measurements and the single-cell immunoblot assay to study secretion in dorsal root ganglion neurons, we found that the somata underwent robust exocytosis upon depolarization and released substance P, in response to KCl stimulation. The parallel changes between capacitance responses and intracellular Ca2+ concentration ([Ca2+]i) at different membrane potentials and the inhibition of exocytosis by Ca2+ chelators suggest that soma release is Ca2+-dependent. We also assessed the level of Ca2+ required for exocytosis by raising the average [Ca2+]i with the Ca2+ ionophore, ionomycin. Capacitance changes were triggered by cytosolic Ca2+ > 0.6 μM; the [Ca2+]i at the release sites during depolarizations was estimated to be 3–10 μM. These Ca2+ levels are similar to those obtained from neuroendocrine cells, but are at least 10 times lower than those required for transmitter release from nerve terminals
An Analysis and Critique Wang Fu-Chih's Theory of "tao ta shan hsiao, shan ta hsing hsiao"
No full text1.An analysis of the concept of tao
2.An analysis of the concept of hsing
3.An analysis of tao ta shan Hsiao, shan ta hsing hsiao
4.Critique:
a)Tao ta shan hsiao and shan ta hsing hsiao are explicated from different points of view
b)The concepts of shan and hsing are two aspects of one thing
c)It is not true that “tao sheng shan, shan sheng hsing”
d)The concept of shan is ambigious:
i)Shan as the power of chi sheng
ii)Shan as the process of chi shen
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