نتایج جستجو برای: huxley

تعداد نتایج: 2424  

Journal: :Nature 1946

Journal: :Medical History 1995
Nicolaas Rupke

Ever since Leonard Huxley published his father's Life and letters (1900) and P Chalmers Mitchell wrote Thomas Henry Huxley (1900), there has been a steady production of Huxley biographies-one a decade, on average. Most of these are cast in the mould of a traditional historiography, hailing Huxley as the courageous, truth-seeking champion of Darwin's theory of evolution by means of natural selec...

2010
R. Appali S. Petersen U. van Rienen

Hodgkin and Huxley were the pioneers to abstract biological neuron as an electric circuit and nerve signal as the voltage impulse. The Hodgkin-Huxley theory (Hodgkin and Huxley, 1952) has set the direction and defined the goals for much of the ensuing research in biophysics. However, in 2005, T. Heimburg and A. D. Jackson, biophysicists from Copenhagen proposed a new neural theory called Solito...

2010
Wang Yingwei Chen Suqin Wu

& Y R + Q 32 RQ 2 May, 2010 MATHEMATICA NUMERICA SINICA Vol.32, No.2 pji]\aonced^`gbfmh_ Burgers-Huxley lk*1) W[X SVU YZT (i#?*Q* , 3 200092) K F A #Q ε L Burgers-Huxley m2I3hqÆ# qX+ :8Z4 m}c, xCo Q>2(sMGk Sh Qm>. b_.m L @%, CA sinh LGk ShB Chebyshev :S[ @%8* , p&#55:S!Z=I5yG^; >.m !CoQ>2( sM 4 8 Runge-Kutta h < L{E, CrÆ s%XMe QLmh[ut > :8 Z}c>PILLQm {X c. Qm@. , xa6Lmh[ > I @% %L :8Z Burgers-H...

In this paper, α and β parameters and gating variables equations of Hodgkin-Huxley neuron cell have been studied. Gating variables show opening and closing rate of ion flow of calcium and potassium in neuron cell. Variable functions α and β, are exponential functions in terms of u potential that have been obtained by Hodgkin and Huxley experimentally to adjust the equations of neural cells. In ...

In this research paper, an improved Chebyshev-Gauss-Lobatto pseudospectral approximation of nonlinear Burger-Huxley and Fitzhugh- Nagumo equations have been presented. The method employs chebyshev Gauss-Labatto points in time and space to obtain spectral accuracy. The mapping has introduced and transformed the initial-boundary value non-homogeneous problem to homogeneous problem. The main probl...

All living cells have a membrane which separates inside the cell from it's outside. There is a potential difference between inside and outside of the cell. This potential difference will change during an action potential. It is quite common to peruse action potentials of skeletal muscle fibers with the Hodgkin-Huxley model. Since Hodgkin and Huxley summarized some controlling currents like inwa...

Journal: :Medical History. Supplement 1996
David Innes Williams

changes that took place from the early Victorian to the modem age. The perception of a divinely designed world was transformed to that of a godless universe, and in the process Huxley famously coined "agnosticism". Desmond follows Bernard Lightman in ascribing religious qualities to Huxley's agnosticism. Specifically and most intriguingly, he characterizes Huxley as a Cromwellian Calvinist, rel...

Journal: :Academic Medicine 1941

Journal: :Chemical & Engineering News Archive 1977

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