Generally, diffusing capacity of the lung for carbon monoxide (DLCO) is a function of membrane conductance on the one hand, and of the blood volume in the capillaries with the rate of hemoglobin on the other hand.
Alveolarcapillary membrane conductance is the best pulmonary function correlate of exercise ventilation efficiency in heart failure patients.
Therefore, the overall conductance, transfer factor or diffusing capacity of lung is a function of Dm or membrane conductance
, which is the ability of the lung's surface area to transfer oxygen and [theta]Qc which is the ability of the lung's perfusion to remove oxygen.
Topics addressed include photoreceptor membrane conductance
, how the retinal pigment epithelium (RPE) regenerates 11-cis retinal, photoreceptor adaptation to various levels of illumination and the biochemical basis of this phenomenon as well as its psychophysical consequences, how the retina develops into its final structure, how signals are processed in the retinal synaptic layers, and how changes in the retina and RPE influence normal aging.
A quantitative description of membrane conductance
and its application to conduction and excitation in nerve.
These measurements showed that the membrane capacity decreased 15 per cent or less while the membrane conductance increased to about 200 times its resting value.
This relationship is just another form of Ohm's Law where the specific membrane conductance for an ion ([g.
We believe that patch clamp measurements of membrane conductance
are essential to understanding the interactions between synthetic nanoparticles and cells and recently published results in this area in the Journal of Physical Chemistry (B 2009, 113, 11179); however, pursuing this research area using only manual patch clamp recording was too slow and required a long learning curve for each student.
This simplified the ana lysis of the relationship between membrane conductance
and photoreceptor transmitter release.
under voltage clamp at -45 mV, an outward current accompanied by an increased membrane conductance
was recorded [ILLUSTRATION FOR FIGURE 6A OMITTED].
However, these alkaloids also appeared to promote an increase in membrane conductance
when the horizontal cells were held at potentials more positive than 0 mV.
2+] exposure alters two membrane conductances
in the root membranes of both species of Arabidopsis, a rapidly initiating conductance change that hyperpolarizes the membrane and a more slowly initating change that depolarizes the membrane.