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We have investigated the solid-phase crystallization (SPC) of hydrogenated amorphous silicon–germanium (a-Si1−xGex:H) alloy films by using x-ray diffraction and electron spin resonance measurements. The films were deposited on glass in a plasma-enhanced chemical vapor deposition system by using SiH4 and GeH4 gases. The deposited films were then annealed at 600 °C, which resulted in crystallization. The variation of the spin densities with annealing time was found to be strongly correlated with the structural changes in the SPC process, and the Ge dangling bonds were the dominant defects involved in the SPC process for Si1−xGex:H films (for x>0.05). The incubation time and the final grain size of the recrystallized films depended on the Ge composition and were closely related to the variations of the Si–H and the Ge–H dissociation energies. The SPC process is thought to be influenced by the initial structural disorder of the a-Si1−xGex:H films, and by the Ge composition.

The pure and Magnli phase titanium suboxides for both rutile and anatase supercell models of TiO1.9375 were structured by using first-principles plane-wave ultrasoft pseudopotential method based on the density functional theory; the geometry optimizations, the band structures, and density of states of these models were calculated. Results show that the volumes become greater for Magnli phase titanium suboxides in both rutile and anatase; meanwhile, the stability may reduce slightly, leading to a Mott transition. The nonmagnetic property of anatase titanium suboxides, and the magnetic property of rutile titanium suboxides, as wall as the conductive property of anatase titanium suboxides are higher than rutile titanium suboxides, in agreement with the experimental results.

Conclusions:In the absence of RCTs, the results of this systematic review/meta-analysis represents the best evidence supporting PFS benefits of upfront ASCT consolidation in patients with T-NHL in CR1 or CR1/PR1 after frontline chemotherapy. In particular, AITL patients showed significant PFS and OS benefits with upfront ASCT.