Our theoretical model is based on a magnetic Heisenberg Hamiltonian in the exchange regime, together with a transfer-matrix treatment within the random-phase approximation. For periodic arrangements, the bulk band structure is analogous to those found in photonic crystals, while for quasiperiodic multilayers it presents additional pass bands similar to those found in photonic crystals with

defects. (C) 2011 American Institute of Physics. [doi:10.1063/1.3549557]“
“The effects of microbial transglutaminase (MTGase) treatment at various enzyme concentrations (4-40 U g(-1)) on the properties of cast films from red bean protein isolate were investigated. The evaluated properties included see more mechanical properties (tensile strength, TS and elongation at

break, EB), surface hydrophobicity (H(s)), moisture content (MC), total soluble matter (TSM), water vapor transmission rate (WVTR) and permeability (WVP), as well as transparency. The results indicated that the TS and EB, and TSM were greatly improved by the MTGase treatment at low enzyme concentrations of 4-10 U g(-1), but considerably impaired at higher concentrations 20-40 U g(-1). The MTGase treatment also significantly increased the H(s), but decreased MC and WVTR, but GSI-IX in vitro the changes were independent of the applied enzyme concentration. The MTGase treatment progressively decreased the moisture loss during the drying of film-forming solutions, upon the increase in enzyme concentration. The protein solubility analyses in various solvents indicated that the contribution of covalent linkages to film network formation progressively increased upon the increase in enzyme concentration. The results suggest that the modifications of the properties of cast films are closely associated with the extent of MTGase-induced covalent polymerization and/or aggregation. (C) 2011 Wiley Periodicals,

Inc. J Appl Polym GSK2399872A manufacturer Sci 122: 789-797, 2011″
“The magnetization dynamics of a spin-transfer nano-oscillator is studied for a system subject to the combined action of dc spin-polarized electric current and microwave circularly polarized applied field. The uniform mode theory is developed for a spin-valve with an arbitrary orientation of the polarizer. The theory enables one to predict the control parameters for the synchronization between the magnetization self-oscillation and the external microwave field. Full micromagnetic simulations are performed with the predicted control parameters, and they demonstrate the hysteretic nature of the synchronization in very good agreement with the theory. (C) 2011 American Institute of Physics. [doi: 10.1063/1.