The removal of viruses during the purification of equine antisera using filtration aids Hyflo Super-Cel and Fulmon Super A.

Chromatography of Blood-clotting Factors and Serum Proteins on Columns of Diatomaceous Earth

1. In batch adsorptions with prothrombin solutions, hyflo was the weakest adsorbent, standard super-cel intermediate, and filter-cel strongest. Of these three grades of diatomaceous earth, hyflo has the smallest surface area per gram and filter-cel the largest. In parallel breakthrough experiments, a column of standard super-cel had a capacity almost six times that of a hyflo column. 2. After p...

More recently in 1954, Dorfman and coworkers3) submitted a crude polysaccharide mixture from rabbit skin to electrophoresis on a slab of Hyflo Super-Cel and found that an itinsulfuric acid preparation thus purified showed the carbazol reaction for hexuronic

An empirical study on statistical analysis and optimization of EDM process parameters for inconel 718 super alloy using D-optimal approach and genetic algorithm

Among the several non-conventional processes, electrical discharge machining (EDM) is the most widely and successfully applied for the machining of conductive parts. In this technique, the tool has no mechanical contact with the work piece and also the hardness of work piece has no effect on the machining pace. Hence, this technique could be employed to machine hard materials such as super allo...

The effect of nitrogen mustards on the viscosity of thymonucleate.

The nitrogen mustards used in these experiments were the hydrochlorides of ethyl bis (/3 chloroethyl) amine, methyl bis (/3 chloroethyl) amine, and tris (fl chloroethyI) amine. Sodium nucleate was prepared from calf thymus by a modification of Hammarsten's procedure (5). After the preliminary extraction, filtration, and addition of CaC12, a precipitate was obtained by bringing the final ethanol...

Seasonal Outbreak of Influenza A virus Infection in Pediatric Age Groups During 2004-2005 in South of Iran

Background: The pandemic and regional influenza outbreaks resulting from antigenic variation of influenza viruses have been the subject of numerous studies which are crucial to the preparation of the vaccine. Frequent global winter outbreaks of influenza viruses require a constant surveillance of emerging influenza variants in order to develop efficient influenza vaccine. Methods: This study wa...