The encircling operation for the treatment of retinal detachment is a well established surgical method (Schepens, Okamura, Brockhurst, and Regan, 1960; Regan, Schepens, Okamura, Brockhusrt, and McMeel, I962; Girard and McPherson, I962; Schepens, I964; Brockhurst, I965; Schepens, I968). However, complications do occur and a number of these are related to the tightness of the encircling band. Whe...

Mercury has a terrestrial-like magnetosphere which is usually taken as scaled-down-version of Earth's with similar current system. We examine Mercury's magnetospheric system based on survey magnetic field measured by the Surface, Space Environment, Geochemistry, and Ranging spacecraft well computer simulations. show that there no significant Earth-like ring flowing westward around Mercury, inst...

BACKGROUND The purpose of this study was to determine the relative amount of load that is transmitted through the superior portion of the subscapularis during activities of daily living as compared with the load that is transmitted through the middle and inferior portions in a normal shoulder and in a shoulder with a supraspinatus tear. METHODS By use of the Newcastle shoulder model, the subs...

The distribution of proteoglycans and their association with collagen fibrils were studied in human and rabbit sclera following fixation of tissue in glutaraldehyde containing Cuprolinic Blue, a specific stain for proteoglycans when used in the presence of critical concentrations of electrolytes. Proteoglycans were visualized by electron microscopy as fine filaments, approximately 54 nm in leng...

Apical constriction typically accompanies inward folding of an epithelial sheet. In recent years there has been progress in understanding mechanisms of apical constriction and their contribution to morphogenetic processes. Sea urchin embryos form a specialized region of ectoderm, the ciliary band, which is a strip of epithelium, three to five cells wide, encircling the oral ectoderm and functio...