One step becomes two

One-step two-wavelength holography.

One-step two-wavelength holography is obtained with twointerferometric beams with different wavelengths by means of apolarizing modulation produced by a liquid-crystal lightvalve. This holographic method eliminates the need for preliminarystatic recording of the hologram and permits one-step two-wavelengthholographic testing to produce results easily in real time.

One step forward

One-step and two-step bait fishing: Evaluation of results

The evaluation of the SILAC AP-MS experiments required a threshold for the SILAC ratio to define when an identified protein should be considered a contaminant or putative interaction partner. Other studies apply a statistical measure such as the Grubbs outlier test [1] or the z -test [2] to measure whether the deviation of a SILAC ratio is significant. These tests presuppose that the parameter ...

One-step versus two-step culture of mouse preimplantation embryos.

BACKGROUND A comparison has been made of the development of mouse zygotes in either one-step or two-step culture systems. METHODS Embryo culture, blastocyst cell counts and embryo transfer were done. RESULTS No significant differences were observed in the proportions of blastocysts, rates of hatching, numbers of cells in the inner cell mass (ICM) and trophectoderm (TE) that developed in pro...

Two steps forward, one step back.

Participants at a community health information network in Glens Falls, N.Y., have come face-to-face with obstacles that could have meant the end to this rural health network that the New York Department of Health and the John A. Hartford Foundation helped launch more than two years ago. Instead, John Laliberte, Glens Falls Hospital's director of information systems, and the rest of the IS team ...