No abstract

By analysing regulation behaviour of each of the system parameters, we show that the model exhibits many characteristics of actual cancer growth curves. Features reproduced in this model include delayed phase of evolving cancer under 17AAG treatment, and bi-stable behaviour under treatment by irradiation. In addition, our interpretation of the system parameters corresponds well with known facts involving 17AAG treatment. This model may thus provide insight into some of the mechanisms behind cancer.

These data suggest that the neuronal expression of Nramp1 is important for protecting against the development of MPTP/MPP -induced α-synuclein pathology and neurotoxicity.

Buckled SiGe films on viscous oxide with different Ge content are studied by wafer bonding and smart-cut process. Compressively strained SiGe layers on the viscous oxide were relaxed to form the buckled state after thermal treatment. Two-dimensional buckling on blanket films is observed. A higher Ge concentration results in a smaller buckling amplitude and a smaller buckling period. Both buckling amplitude and period increase as oxidation time is increased. A small SiGe film ͑mesa͒ area can inhibit buckling. Semiempirical analysis gives the critical area size, below which no buckling is observed in the equilibrium states. The critical area size decreases with increasing Ge concentration and decreasing thickness of SiGe films.