Further research is needed to increase the reliability of the findings. (C) 2010 Elsevier Inc. All rights reserved.”
“With the aim to improve the technological properties selleck chemicals and the product freshness maintenance, the conservation of eggs in saturated CO2 atmosphere has been proposed.

In this research, to study the CO2 diffusion inside the egg, a numerical model was developed. This required a characterization of the involved materials, with particular reference to the mass diffusivity. The present paper proposes a method, based on just simple laboratory determination of average total CO2 concentration and on the inversion of a finite element model, to estimate the CO2 mass diffusivity in the thin albumen, thick albumen and yolk of hen eggs. The method does not require complex devices and looks susceptible to extension to other physical problems.

The results showed that the values of mass diffusivity determined by inverse method (thin albumen: 1.8E-09 m(2)/s; thick albumen: 8.5E-10 m(2)/s; yolk: 1.6E-10 m(2)/s) are comparable to the data reported in the literature for similar materials. The simulated and CBL0137 experimental values of CO2 concentration appear to be in good agreement, particularly for the albumen. (C) 2010 Elsevier Ltd. All rights reserved.”
“A series of copolyesters were prepared by the direct melt transesterification of poly(trimethylene terephthalate) (PIT) and poly(butylene succinate) (PBS). The sequential structure of the copolyesters was analyzed with proton nuclear magnetic resonance spectroscopy, and the randomness of the copolyesters was calculated to be approximately 0.8. The cocrystallization, thermal behavior, and spherulitic morphology were investigated. The melting points of the copolyesters showed a pseudo-eutectic

behavior exhibiting isodimorphic cocrystallization. Wide-angle X-ray diffraction indicated that the copolyesters crystallized in PTT crystals when the butylene succinate (BS) unit content was less than 60% Vorinostat research buy and in the PBS crystals when the BS unit content was greater than 70%. The mechanical properties of the copolyesters were greatly influenced by the sequence lengths of the aromatic and aliphatic units. The incorporation of BS units into the PTT structure led to a faster rate of degradation of the copolyesters because of the decrease in the aromatic sequence length and the increase in the aliphatic sequence length. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 1297-1306, 2011″
“Objective: It is not clear how the psychosocial well-being of young people with epilepsy is affected by growing up with the condition. We studied self-esteem and sense of coherence in a group of young adults with epilepsy and compared the results with those obtained 5 years earlier.