The scale parameter of lifetime distribution at constant stress levels is assumed to be a log-linear function of the stress levels and a cumulative exposure model holds.
If the modal density available to an excited atom is varied on the time scale of its lifetime, then we can expect the natural process of spontaneous emission (SE) to become dynamically manipulable.
Ratings are made on a 39 item scale that reflect severity (on a 5 point scale) and duration (on a 5 point scale) for lifetime occurrence of a range of psychotic features encompassing positive, bizarre, negative and disorganized domains plus depressive and manic syndromes.
The problems are familiar by now: they include a planetary warming that, while slow on the scale of a human lifetime, is extremely rapid on a geologic time scale, the scientists said.
Joseph Pickrell, an evolutionary geneticist at New York Genome Center in New York City, has used a different strategy to put selection under an even keener microscope, detecting signs of evolution on the scale of a human lifetime.
The steady-state anisotropy is sensitive to the mobility of the fluorophore on the time scale of its fluorescence lifetime, which is in the nanosecond range for tryptophan.
There must be a length scale controlled by diffusion above which different regions of space are effectively independent of one another on the time scale of the molecular lifetime.
However, on the scale of individual human lifetimes, it may have been so gradual as to be nearly imperceptible.
It's hard for us to think outside the scale of our own lifetimes," she says.
With both insertion methods, we observe stable current baselines over the minutes time scale, or lifetime of the bilayer membrane, and reproducible charge flux values at fixed concentrations of protein.
