A Systematic Study of the Temperature Dependence of the Dielectric Function of GaSe Uniaxial Crystals from 27 to 300 K.

We report the temperature dependences of the dielectric function = + i and critical point (CP) energies of the uniaxial crystal GaSe in the spectral energy region from 0.74 to 6.42 eV and at temperatures from 27 to 300 K using spectroscopic ellipsometry.

A large lipoma of the descending colon: A rare case report.

Colon lipoma is a rare benign disease in the gastrointestinal tract with an incidence rate of approximately 0.035%-4.4%.

Oxygen vacancy clustering and electron localization in oxygen-deficient SrTiO(3): LDA + U study.

We find, using a local density approximation +Hubbard U method, that oxygen vacancies tend to cluster in a linear way in SrTiO(3), a prototypical perovskite oxide, accompanied by strong electron localization at the 3d state of the nearby Ti transition metal ion. The vacancy clustering and the associated electron localization lead to a profound impact on materials properties, e.g.