Trigonal α − G a 2 O 3 is an ultrawideband semiconductor with potential applications in power electronics and ultraviolet opto-electronic devices. In this Letter, we calculate the low field electron mobility from first principles calculations. The effect of all 30 phonon modes taken into account for transport calculation. dispersion Raman Infrared spectra are calculated under density functional...

Negative thermal expansion (NTE) materials are expected to be utilized compensate for the of structure materials. Giant NTE stemming from polar-nonpolar transition in electron doped PbVO3 and that intermetallic BiNiO3 derivatives overviewed. Systematic charge distribution changes Pb-3d metal perovskites will also discussed.

BACKGROUND Diabetes mellitus is a chronic illness, and the management of diabetes is a global problem. Successful treatment is required to prevent complications and organ damages. Herbal medicines are having minimal adverse effects when compared to the available synthetic drugs to treat such chronic diseases and disorders. OBJECTIVE The present study was aimed to evaluate the antidiabetic and...

By using a versatile high-pressure liquid chromatography method (total elution time 135 min) developed in the present study, we detected the formation of some 20 nonpolar radioactive metabolite peaks (designated as M1 through M20), in addition to a large number of polar hydroxylated or keto metabolites, following incubations of [H]17 -estradiol with human liver microsomes or cytochrome P450 3A4...

During terminal differentiation, mammalian epidermal lipids undergo striking changes in both composition and distribution. Phospholipids and neutral lipids are replaced by a mixture of ceramides and neutral lipids organized in intercellular lamellar bilayers. Whether all of these lipids and/or whether specific lipid classes regulate permeability barrier function is not known. When hairless mice...

Time-resolved resonance Raman spectroscopy (TR3) has been used to study the effect of solvent polarity on the mechanism and nature of intermediates formed in photoinduced electron-transfer reaction between triplet flouranil ((3)FL) and tetramethylbenzene (TMB). Comparison of the TR3 spectra in polar, nonpolar, and medium polar media suggests that formation of radical anion due to electron-trans...

The effects of natural extracts on the formation of polar (IQ, MeIQ, MeIQx, 4,8-DiMeIQx, and PhIP) and nonpolar (norharman, harman, and A C) heterocyclic amines (HAs) were examined in ground beef cooked at 200 and 210°C for 20 min. In experiment 1, the formation of MeIQx was effectively reduced by 77%, 75%, and 69%, respectively, for 1.0% pine bark extract (Pycnogenol), 1.0% Oleoresin rosemary ...

Eumelanin is a naturally synthesized ultraviolet light absorbing biomolecule, possessing both photoprotective and phototoxic properties. We infer insight into these properties of eumelanin using a bottom-up approach, by investigating an ultraviolet absorbing motif of eumelanin, 4-tert-butylcatechol. Utilizing a combination of femtosecond transient electronic absorption spectroscopy and time-res...