The energy-band structure and visible photoelectric properties of a p/n-Si doping superlattice structure (DSL) on 6H-SiC were simulated by Silvaco-TCAD. The,n the Si-DSL structures with 40 nm-p-Si/50 nm-n-Si multilayers were successfully prepared on 6H-SiC(0001) Si-face by chemical vapor deposition. TEM characterizations of the p/n-Si DSL confirmed the epitaxial growth of the Si films with pref...

The antioxidant properties of galantamine hydrobromide ((4alpha,6beta)-4a,5,9,10,11,12-hexahydro-3-methoxy-11-methyl-6H-benzofuro[3a,3,2-ef][2]benzazepin-6-ol hydrobromide) were studied in vitro, using luminol-dependent chemiluminescence and spectrophotometry. It was found that this compound was a scavenger of reactive oxygen species (ROS). By comparing the antioxidant effects of galantamine ((...

EPR spectra originating from phosphorus shallow donors occupying silicon sites in 3C-, 4H-, and 6H-SiC are identified by using CVD grown films in which the interference from the signals from the nitrogen shallow donors is practically absent. Phosphorus donors occupying both silicon and carbon sites are observed in high-energy phosphorus ion implanted semi-insulating 6H-SiC which was also free f...

with G=(g) and H = ( h ) being the average amplitudes while 6g and 6h are the fluctuating ones. Basic statistical assumptions of the nuclear cross section fluctuation theory [3-6] and the uncorrelation of 6S for different values of total angular momentum and parity lead to the independent normal distribution for complex compound-nucleus amplitudes 6g and ~h [7] F((Sg, 6h)= 1 exp ( [6912 Ibhl2 t...

BACKGROUND Kudiezi (KDZ) injection is commonly used in traditional Chinese medicine as treatment for cerebral infarction and angina pectoris. The present study investigated the therapeutic effects of KDZ injection on myocardial injury induced by acute cerebral ischemia and the possibly protective mechanisms. METHODS Rats were divided into three groups: sham, 6h-ischemia, and KDZ treatment (KD...

In this study organotypic adult spinal cord slices were used to investigate whether caspases could participate in the apoptosis of motor neurons. The thoracic region of spinal cord was sliced using a tissue chopper and cultured in a medium for 6h. Morphological and biochemical features of apoptosis were assessed by fluorescent staining and terminal deoxynucleotidyl nick end labeling (TUNEL) met...

BACKGROUND Treatment of latent infection is needed to protect HIV-infected individuals against tuberculosis. A previous report addressed short-term efficacy of three regimens in HIV-infected adults. We now report on long-term efficacy of the study regimens. METHODS Three daily self-administered regimens were compared in a randomized placebo-controlled trial in 2736 purified protein derivative...

This study was conducted to determine the effects of different prestorage incubation (PRESI) times of 0, 3, 6 and 9 h on the hatchability of guinea fowl eggs stored for 14 d. A total of 80 eggs were assigned to each of the four PRESI treatments. PRESI-3h, PRESI-6h and PRESI-9h eggs were placed in an incubator at 37.5°C and 65% relative humidity for 3, 6 and 9 h, respectively, before storage wit...

An experimental determination on powder mixtures of SiC-3C and 6H polytypes using an X-ray goniometer system showed the possibility of quantitative determination of polytype fraction directly from peak intensities. In combination with calculated X-ray intensities of 15R and 4H polytype, the method yields a simple equation system for the relative quantities of SiC polytypes 15R, 6H, 4H and 3C in...

In this study, an aromatic derivative was synthetized; the first stage involve the reaction of 3,17-Dihydroxy-13-methyl-7,8,9,11,12,13,-14,-15,16,17-decahydro-6H-cyclopenta[a]-phenanthrene-2,4-dicarbaldehyde (compound 1) with ethylenediamine to form 2,4-Bis-[(2-aminoethylimino)-methyl]-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol(3) using boric acid as c...