5 MV/cm) and a very low leakage current density of about 8 2 x 10

5 MV/cm) and a very low leakage current density of about 8.2 x 10(-7) A/cm(2) obtained at an electric field intensity as high as 500 kV/cm. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3428390]“
“The thermal behavior of three series of sugar-derived polyamides (PA-nSu) made from the arabinaric, mannaric and galactaric acids, respectively, and

alpha,omega-alkanediamines containing from 6 to 12 methylene units was investigated by DSC supported by polarizing optical microscopy. Crystallization from the melt under both isothermal and nonisothermal conditions was studied in detail. Melting temperatures of PA-nSu were found to decay steadily with the length of the polymethylene segment. Data registered from isothermally crystallized samples were analyzed by the kinetics Avrami approach, which revealed selleck products that crystallization initiated by combination of instantaneous and sporadically nucleation. Crystallization half-times indicated that “”crystallizability”" of PA-nSu increases with the number of methylenes in the diamine unit and decreases with the length of the carbohydrate-derived unit. Higher crystallinities were attained for polyamides made of shorter aldaric acids. The relation between thermal data and the configuration of the sugar moiety present in PA-nSu was discussed. CH5424802 supplier (c) 2010 Wiley Periodicals, Inc. J Appl

Polym Sci 116: 2515-2525, 2010″
“Objective: To investigate the expression of the stem cell marker Nanog in lung cancer tissues and the correlations between Nanog expression and clinic-pathologic characteristics as well as prognosis of lung cancer.

Methods: 163 patients with lung cancers enrolled in the study. The expression of Nanog in the cell lines and lung cancers were evaluated by RT-PCR, immunofluorescence and immunohistochemisty. Then, the correlations between Nanog expression status and clinic-pathologic characteristics and prognosis of lung cancer patients were analyzed.

Results: It showed that Nanog are higher expressed

in lung cancer tissues compared to their normal counterparts in both mRNA and Z-DEVD-FMK in vivo protein levels, and Nanog expression was observed to be positively correlated with tumor differentiation and clinical stages of lung cancer patients (P = 0.001 and 0.001). Nanog were mainly localized at the cytoplasm in the brown color in the lung cancers. In addition, nuclear staining of Nanog was more observed in poorly differentiated lung cancers compared to others (P = 0.01). Furthermore, survival analyses showed that over-expression of Nanog protein predicted a worse prognosis for lung cancer patients (P = 0.001).

Conclusion: Nanog can be an important prognostic marker for lung cancer, which may present a new therapeutic target for lung cancer patients in the future. (C) 2013 Elsevier Ltd. All rights reserved.

Comments are closed.