Glasses of composition (B2O3)(70)(PbO)(29)(0.5Eu(2)O(3))(1) and (B2O3)(z)(PbO)(99.6-z)(0.5Eu(2)O(3))(0.4), (z = 20, 30, 40, 60, 70), were prepared by the melting-quenching technique. Variable-wavelength measurements by the prism-coupling method enabled interpolation of refractive index at selected wavelengths. Diffuse reflectance spectra confirmed the incorporation of Eu3+ into the glass, and scanning electron microscopy displayed that this was in a homogeneous manner. Vibrational spectra showed a change in boron coordination from BO3
to BO4 units selleck products with increase of PbO content in the glass. Multi-wavelength excited luminescence spectra were recorded for the glasses at temperatures down to 10 K and qualitative interpretations of spectral differences with change of B2O3 content are given. The quantitative analysis of D-5(0) luminescence intensity-bandwidth relations showed that although samples with higher boron content closely exhibit a simple proportional relationship with band intensity ratios, as expected from theory, the expression needs to be slightly modified for those with low boron content. The Judd-Ofelt intensity analysis of the D-5(0) emission spectra under laser excitations at low temperature gives Omega(2) values within the range selleck screening library from (3.9-6.5) x 10(-20) cm(2), and Omega(4) in the range from (4.1-7.0)
x 10(-20) cm(2), for different values of z. However, no clear monotonic relation was found between the parameter values and composition. The Judd-Ofelt parameters are
compared with those from other systems doped with Eu3+ and are found to lie in the normal ranges for Eu3+-doped glasses. The comparison of parameter values derived from the 10 K AS1842856 spectra with those from room temperature spectra for our glasses, which are fairly constant for different compositions, shows that site selection occurs at low temperature. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3620985]“
“Background and aims: Although previous studies suggest that the traditional Japanese dietary pattern is independently associated with a low cardiovascular disease mortality risk, the mechanisms mediating or linking this association are not well understood. Adiponectin has emerged as a valuable biomarker for cardiovascular diseases. The aim of present study was to evaluate whether dietary patterns are associated with serum adiponectin concentration in Japanese adult men.
Methods and results: We designed a cross-sectional study of 702 men (median [interquartile range] age, 44.5 [37.8-54.2] years) living in Japan. Dietary consumption was assessed via a 75-item food frequency questionnaire. We used principal-components analysis to derive 3 major dietary patterns-”"Japanese”", “”sweets-fruits”" and, “”Izakaya (Japanese Pub)”"-from 39 food groups.