A mild and efficient one-pot three-component and environmentally benign approach for the synthesis of a wide range of hydantoin annulated derivatives has been described. A multi-component reaction between a carbonyl compounds (ketone or aldehyde), potassium cyanide and ammonium carbonate (as cyanating agent and amine source, respectively leads to the formation of hydantoins. The proposed optimi...

Abstract Mass loss at the Greenland Ice Sheet is influenced by atmospheric processes controlling its surface mass balance, and submarine melt calving where glaciers terminate in fjords. There, an ice mélange – a composite matrix of calved bergs sea may provide buttressing force on glacier terminus control dynamics. Kangerlussuaq Glacier major outlet Sheet, for which recent retreat events 2004/2...

Introduction: According to the canonical lunar magma ocean (LMO) model, ferroan anorthosites (FANs) were part of the lunar anorthosite crust formed via plagioclase flotation and subsequent solidification in a globally distributed LMO [1-4]. The solidification time for a globally distributed LMO is model dependent and ranges from 10 4-10 8 yrs [3,5,6]. At a given time during lunar crust formatio...

Determining a calving law valid for all glaciological and environmental regimes has proven to be a difficult problem in glaciology. For this reason, most models of the calving process are semiempirical, with little connection to the underlying fracture processes. In this study, I introduce methods rooted in statistical physics to show how calving laws, valid for any glaciological domain, can em...