… either 0.2 M Ba(OH)2, or with 2.5 M NaOH under reflux. No significant differences were found
between results obtained by the two types of hydrolysis. The data showed that hot 6 M HCl …

Emerging technologies from optics, genetics, and bioengineering are being combined for
studies of intact neural circuits. The rapid progression of such interdisciplinary “optogenetic” …

Optical fibers guide light between separate locations and enable new types of fluorescence
imaging. Fiber-optic fluorescence imaging systems include portable handheld microscopes, …

The ratio of optical densities or absorbances of dilute, aqueous humic and fulvic acid solutions
at 465 and 665 nm (E 4 /E 6 ) is widely used by soil scientists for the characterization of …

Kinesin is a two-headed, ATP-driven motor protein that moves processively along
microtubules in discrete steps of 8 nm, probably by advancing each of its heads alternately in …

RNA polymerase (RNAP) moves along DNA while carrying out transcription, acting as a
molecular motor. Transcriptional velocities for single molecules of Escherichia coli RNAP were …

… Morris, GF, and M. Schnitzer. 1967. Rapid determination of carbon in soil organic matter
extracts by dry … Schnitzer. 1972. Electron spin resonance spectrometry of humic substances. …

Nitrogen, which is a key nutrient source for food, biomass, and fibre production in agriculture,
is by far the most important element in fertilizers when judged in terms of the energy …

Kinesin is a two-headed, ATP-dependent motor protein 1 , 2 that moves along microtubules
indiscrete steps 3 of 8 nm. In vitro, single molecules produceprocessive movement 4 , 5 , …

We investigated humic substances by surface pressure and viscosity measurements at
different pHs and neutral salt concentrations to elucidate their macromolecular configurations. …