Osterhout and Stanley t have recently described some interesting experiments on diffusion between two aqueous phases separated by a non-aqueous phase. These experiments were modeled after living cells and duplicated the power of some cells to concentrate preferentially certain chemical substances. Furthermore, the volume increase shown by one of the aqueous phases in the model is somewhat analo...

1. It has previously been shown by the author and many others that growth, in animals and plants, is an autocatalysed process. In animals it is usual to find that growth occurs in several superimposed autocatalytic cycles. In many cases, in plants and animals, especially if the cycle is one which occupies a large proportion of the growing period, it is found that the velocity-constant of the au...

Biophysical properties of the tear film lipid layer are studied at the molecular level employing coarse grain molecular dynamics (MD) simulations with a realistic model of the human tear film. In this model, polar lipids are chosen to reflect the current knowledge on the lipidome of the tear film whereas typical Meibomian-origin lipids are included in the thick non-polar lipids subphase. Simula...

Salmonella typhimurium survived freeze-drying at a platen temperature of 120 F (48.9 C) and also, though to a much lesser degree, at 160 F (82.6 C). The extent of the survival at these temperatures was dependent on the composition of the model system employed. The incidence of damage immediately after freeze-drying was greater for cells dried at the higher platen temperature and was influenced ...

Red-emitting (≈643 nm) InGaN multiquantum well active device layers and micro-LEDs are grown by metal organic chemical vapor deposition (MOCVD) on relaxed templates, the latter created via thermal decomposition of an underlayer, examined power- temperature-dependent photoluminescence electrical measurements. Maximum internal quantum efficiencies determined to be 7.5% at excitation power density...