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“We measured the reflectivity of nanoparticle thin films with bimodal size distributions clearly separated by depth and found distinctive spectral differences depending on the direction of illumination. In contrast with previous experiments that implied such differences, the samples in

this experiment are prepared by ion implantation at sufficiently high energy Compound C concentration to achieve the necessary spatial separation between larger and smaller nanoparticles. We demonstrate that the difference between scattering and absorption probabilities as a function of nanoparticle size is responsible for the differences in maximum reflectivities as the direction of illumination is reversed. This conjecture is supported by a Mie scattering calculation.”
“Ge nanowires were grown on Au-coated Si (100) substrates using vapor-liquid-solid technique. Temperature dependent photoluminescence spectra of Mn doped nanowires showed dominant impurity emissions due to transition from an intermediate (4)T(1) to (6)A(1) ground state of Mn(2+) in Ge nanowire. Magnetic hysteresis loop showed paramagnetic

to ferromagnetic transition with decreasing temperature. Temperature dependent electrical resistivity indicated the formation of Mn related acceptor level in Ge at 0.159 eV from the valence band.”
“Objective. To examine the relationship between maternal glucose levels and intrauterine fetal adiposity distribution in SB203580 cell line women with a normal oral glucose tolerance test (OGTT) at 28 weeks gestation. Study Design. We recruited 231 women with a singleton pregnancy. At 28 and 37 weeks gestation, sonographic measurements of fetal body composition were performed. Multiple regression analysis was used to study the influence of different maternal variables on fetal adiposity distribution.

Results. Maternal glucose levels correlated with the fetal abdominal subcutaneous tissue measurements (r = 0.2; P = 0.014) and with birth weight (r = 0.1; click here P = 0.04). Maternal glucose levels did not correlate with the fetal mid-thigh muscle thickness and mid-thigh subcutaneous tissue measurements. Conclusion. We found that in nondiabetic women maternal glucose levels not only influence fetal adiposity and birth weight, but also influence the distribution of fetal adiposity. This supports previous evidence that maternal glycemia is a key determinant of intrauterine fetal programming.”
“Two-dimensional two-phase heterostructures have been the subject of many investigations including computer simulations. An outstanding issue is the shape analysis of the reflectance for dielectric inclusions of arbitrarily complex geometry.