نتایج جستجو برای: تصحیح gga u
تعداد نتایج: 172757 فیلتر نتایج به سال:
We discuss self-consistently obtained ground-state electronic properties of monolayers of graphene and a number of 'beyond graphene' compounds, including films of transition-metal dichalcogenides (TMDs), using the recently proposed strongly constrained and appropriately normed (SCAN) meta-generalized gradient approximation (meta-GGA) to the density functional theory. The SCAN meta-GGA results a...
An ab-initio calculation based on full potential linearised augmented plane wave method of density functional theory (DFT) within the localised density approximation (LDA), generalised gradient approximation (GGA) and modified Becke-Johnson (mBJ) for exchange correlation potential is performed to investigate the structural, phase transition and electronic structure of Zinc Sulfide (ZnS). A comp...
The exchange-correlation functionals of the generalized gradient approximation GGA are still the most used for the calculations of the geometry and electronic structure of solids. The PBE functional J. P. Perdew et al., Phys. Rev. Lett. 77, 3865 1996 , the most common of them, provides excellent results in many cases. However, very recently other GGA functionals have been proposed and compete i...
The high mobility group box 1 (HMGB1) protein plays an important role in myocardial ischemia and reperfusion (I/R) injury. Geranylgeranylacetone (GGA), a heat shock protein 72 inducer, has been reported to reduce myocardial I/R injury. The aim of this study was to investigate the cardioprotective mechanism of GGA during myocardial I/R injury in rats. Anesthetized male rats were treated once wit...
Marek's disease (MD) is a highly contagious viral neoplastic disease caused by Marek's disease virus (MDV), which can lead to huge economic losses in the poultry industry. Recently, microRNAs (miRNAs) have been found in various cancers and tumors. In recent years, 994 mature miRNAs have been identified through deep sequencing in chickens, but only a few miRNAs have been investigated further in ...
We report generalized gradient approximation ~GGA! cohesive energies for 3d metals. The problem of obtaining atomic reference energies in density-functional theory is considered. The effect of going to nonspherical atomic charge distributions is much larger at the GGA than at the local-density approximation ~LDA! level, but allowing fractional occupations of 3d and 4s shells has negligible effe...
Understanding the interaction between water and ceria surfaces is crucial in many catalytic applications. For the clean CeO2(111) surface, density functional theory (DFT) calculations using different generalized gradient approximations (GGAs) to the exchange-correlation functional and the DFT(GGA)+U method have found that the most stable configuration is on top of a surface cerium atom. However...
The nucleotide sequence of a T4 tRNA with an anticodon for glycine has been determined using (32)P-labeled material from T4-infected cultures of Escherichiacoli. The sequence is: pGCGGAUAUCGUAUAAUGmGDAUUACCUCAGACUUCCAApsiCUGAUGAUGUGAGTpsiCGAUUCUCAUUAUCCGCUCCA-OH. The 74 nucleotide sequence can be arranged in the classic cloverleaf pattern for tRNAs. The anticodon of T4 tRNA(Gly) is UCC with a p...
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