The mass spectromctnc study of the vaporization of the compounds GeO (hex) and GeO(am) and of the mixture GeO (hex) + Ge(c) made it *Z possible to establish their mode of vaporization: Ge02(hex) GeO(g) + 1/20 (I) n GeO(am) (GeO) (g) (n 1. 2. 3) (II) n n/2 GeOJhex) + n/2 Ge(c) (GeO) (g) (n = 1,2,3) (III) c. n The enthalpies of vaporization are AH° (I) 121. 2± 1.6 kcal/mole AH» (II, n=l) = 53.4 ±...

Background: Sediments are inseparable fractions of wetland ecosystems that work as a his-torical archive in the process of recording heavy metal aggregation changes. This study was carried out for assessing Co, Ni, and Zn in sediment samples of Mighan Wetland using geo-accumulation index in 2013. Methods:The sediment samples were taken from 11 stations. The samples were subjected to bulk dige...

SUMMARY In recent years, geo-engineering has been suggested as a viable strategy in dealing with climate change, the main indicator of what has become known as 'the Anthropocene'. In this paper, I investigate the effects of geo-engineering in terms of freedom – not the only but perhaps the most important measure of moral and political desirability. Is geo-engineering a curse or a blessing, a po...

Media sharing applications, such as Flickr and Panoramio, contain a large amount of pictures related to real life events. For this reason, the development of effective methods to retrieve these pictures is important, but still a challenging task. Recognizing this importance, and to improve the retrieval effectiveness of tag-based event retrieval systems, we propose a new method to extract a set...