hydrogen is considered as a unique choice for future world’s resources. the important parameter in the process of hydrogen production is the value of reduction potential for the used catalyst, in direct contact with consumed energy in process. the application of computational methods to design and modify molecular catalysts is highly regarded. this study sought to explore density functional the...

background: this study aimed at estimating the proportion of diabetes as a risk factor to the attributable burden of cardiovascular diseases in iran. methods: comparative risk assessment methodology was used to calculating potential impact fraction (pif). to calculate pif, data on the prevalence of newly diagnosed diabetes mellitus (ndm) and known diabetes mellitus (kdm) were obtained from 3rd ...

background: knowledge of the magnitude of avoidable burden by risk factors is needed for health policy, priority setting, and preventing stroke. the aim of this study was to estimate the contribution of selected risk factors including hypertension, overweight, obesity, tobacco use, and physical inactivity to the attributable burden of stroke in iran. methods: the world health organization compa...

abstract germination and emergence of cold tolerant lentil genotypes sometimes experiences low temperatures and variable rainfalls in the fall planting. this study was conducted to evaluate the effects of drought stress on germination stage of lentil genotypes. experiment was carried out with 18 lentil genotypes under five levels of water potential (0 , -0.4 , -0.8 , -1.2 , -1.6 mpa) using peg ...

the electronic absorption spectral line shape of a diatomic molecule with harmonic potential curves is calculated using the time correlation function formalism. both the equilibrium shift and the frequency shift of the two linking electronic states ate taken into account. the spectrum is also calculated using the cumulated expansion which is related to the correlation function of the time-depen...