A 59-year-old man was admitted to our department with epigastric pain and nausea. The patient mentioned that he had swallowed heated mastic to treat constipation shortly before his symptoms developed. He had no history of any diseases. His vital signs were within normal limits. The physical examination findings were normal, and the results of laboratory tests were unremarkable. Upper gastrointe...

Asphaltene precipitation occurs in petroleum fluids under certain unfavorable conditions, but can be controlled by tuning composition. Aromatic solvents in large quantities can prevent precipitation entirely and can dissolve already precipitated asphaltenes. Some polymeric surfactants can dissolve asphaltenes when added at much lower concentrations than required by aromatic solvents. Other disp...

Cholesterol gallstones are among the most common gastrointestinal disorders in Western societies. Individuals with gallstones may experience various gastrointestinal symptoms and are also at risk of developing acute or chronic cholecystitis. Cholecystectomy is the most frequently recommended conventional treatment for symptomatic gallstones. Bile acids (ursodeoxycholic acid or chenodeoxycholic ...

Ethylammonium Propionate with high polarity and ionic conductivity was synthesized andcharacterized with 1HNMR and IR. This ionic liquid which is prepared from readily available startingmaterial in high yield shows reasonably high at viscosity and heat stability up to 150 °C. This IonicLiquid is able to dissolve most of organic solvents due to the hydrogen interaction between IonicLiquid and th...

We report a family of biocompatible ionic liquids (ILs) which are able to dissolve significant amounts of proteins such as cytochrome c and in which ATR-FTIR spectroscopy results show retention of secondary structure to extreme temperatures.

To study the effects of various types of precipitates and precipitate evolution behavior on austenite (size and phase fraction) in reduced activation ferritic/martensitic (RAFM) steel, RAFM steel was heated to various austenitizing temperatures. The microstructures of specimens were observed using optical microscopy (OM) and transmission electron microscopy (TEM). The results indicate that the ...

The measured dissolution rate of a granular medium depends on its surface area and how the changes during course measurement. Moreover, assumption that specific either remains constant or initially increases is not always valid. This paper demonstrates when particle size distribution has sufficient variance, instantaneous change in can be negative, even before smallest particles dissolve away. ...