An apparatus for the production of graded collodion membranes is described. The theoretical considerations of calibration are discussed in relation to the demonstrable structure and statistical characteristics of the membranes. A new definition of an "end-point" is suggested.

Despite common belief, Baby Boomers form a sizable population of gamers. Paying attention to how this generation experiences a game can help companies that target this group of users increase their market share. To address this need, this study examines Baby Boomers’ reaction to a new way of manipulating objects in a game, namely with their eyes. In particular, the study focuses on testing the ...

Case 1.-Patrick G. was born on December 27, 1952, as a breech delivery and weighed 7 lb. It was the fourth pregnancy, the other children being alive and well except for the elder twin of the second pregnancy who died at 3 weeks of age from congenital hypertrophic stenosis of the pylorus. There was no history of ichthyosis in the family. At birth the infant cried readily but had a varnished appe...

www.ecoNomicmobility.org september 2012 As life expectancy increases and retirement income systems evolve, households face an enormous challenge in ensuring a secure retirement. Working more years is often hailed as the best way to increase retirement incomes, especially in the wake of the Great Recession. But some fear that delayed retirement by Baby Boomers reduces the job opportunities for y...

1. Collodion membranes of high permeability were found to adsorb weighable amounts of gelatin and egg albumin from solution at 37 degrees C. 2. The effect of protein concentration could be expressed fairly well by a hyperbolic equation proposed by Langmuir for the adsorption of gases by a plane surface, while the usual parabolic adsorption equation of Freundlich did not fit the results. 3. In c...