Asphalt aging is one of the main causes asphalt pavement cracking, loosening and other issues. On a macro level, hardens becomes more brittle, while on micro chemical composition molecular weight distribution change. This very complicated physicochemical process. Gel permeation chromatography (GPC) powerful technical tool for understanding mechanism expressing GPC can be used to measure content...

Recent progress in the development and production of new, innovative protein therapeutics require rapid adjustable high-resolution bioseparation techniques. Sodium dodecyl sulfate capillary gel electrophoresis (SDS-CGE) using a borate (B) cross-linked dextran (D) separation matrix is widely employed today for consistency analysis therapeutic proteins manufacturing release testing. Transient cro...

Bioactive glass with composition SiO2, Na2O, CaO, P2O5 with MgO additive were synthesized through a quick alkali mediated sol–gel method. MgO was substituted for SiO2 in glass formula up to 5 wt% and in-vitro bioactivity of the samples (precipitation behavior of carbonated apatite likely bone layer) was evaluated by soaking them in simulated body fluid (SBF). The characterizations were carried ...

I . The composition of the milk of Chinclzillu chinchilla chinchilla was determined throughout lactation in twenty-eight chinchillas. The amino acid pattcrn of the protein and the fatty acid composition of the milk were determined, and the effect of three different diets on the milk composition was studied. 2. The milk contained (g/kg): 64-80 protein, 108-156 fat, 17 lactose and 10 ash. 3. Pape...

The aim of this work was to relate depth profiles of prokaryotic community composition with geochemical processes in the deep subseafloor biosphere at two shallow-water sites on the Peru Margin in the Pacific Ocean (ODP Leg 201, sites 1228 and 1229). Principal component analysis of denaturing gradient gel electrophoresis banding patterns of deep-sediment Bacteria, Archaea, Euryarchaeota and the...