Cellular dimensions in mesenteric resistance vessels from 10 spontaneously hypertensive rats and 10 Wistar-Kyoto rats have been determined using a random volume with an unbiased counting rule as the counting unit (the disector). With this method, vessels first were mounted on a myograph. Media thickness (spontaneously hypertensive rats, 11.3 micron; Wistar-Kyoto rats, 8.6 micron; P less than 0....

When mixtures of cell lines 168 and 4T07, both derived from the same mouse mammary tumor, were injected into syngeneic mice, the resulting tumors, analyzed over a large size range by colony-forming assays in selective media, consisted primarily of line 4T07, even when the ratio injected was 100:1 or greater in favor of line 168. This result indicated a suppression of growth of line 168, since t...

Purpose: To discriminate the potential role of corneal shape-factors versus opacily li~ctm’s Ibr lhc linal viwd outcome (II‘ I’ IK using comc:~I topography. Methods : PTK were performed witn a Summit Excimed 200 UV C for the treatment of various comeal conditions in 135 patients including Recurrent Epithelial Erosions (n=41). Band Keratopathy (n=35), Epidemic Kerato-Conjunctivitis (n=l I), S&ma...

This paper examines various techniques that have been developed to measure flow fields in microfluidic devices with 10 – 10 micron-scale spatial resolution. These techniques include Scalar Image Velocimetry (SIV), Laser Doppler Velocimetry (LDV), and Particle Image Velocimetry (PIV). Advantages and disadvantages of these techniques are presented. PIV results are presented for a liquid flow thro...