Spent radioactive ion-exchange resin (SIER) and evaporation concentrates are radioactive wastes that are produced at by pressurized water reactor (PWR) nuclear power stations. Borate, which is used as a retardent for cement, is also present as a moderator in a PWR, therefore, borate will be present in both ion-exchange resins and evaporation concentrates. In this study the use of Calcium sulfoa...

Thin gels (<I mm) can be loaded conveniently, rapidly, and quantitatively by suspending the sample to be analyzed in a drop of agarose gel and simply placing the solidified drop on top of the stacking gel. With this method there is no lower limit to the size of the sample to be loaded or to the thinness of the gel to be employed. Using the silver stain quantitation of between 1 and 1000 @ample ...

General Procedure: 1-Propylimidazole-N-oxide (2a) 1 (1.0 g, 4.1 mmol) and 1,3,5-tripropylhexahydro-1,3,5triazine (0.5 g, 2.4 mmol) were dissolved in ethanol (20 mL). The reaction mixture was heated to reflux for 10 h. The light brown solution was cooled to room temperature and the solvent removed under reduced pressure. The oily residue solidified upon trituration with diethylether to give 2a a...

An electrically-activated phantom for evaluating diffuse optical imaging systems has been designed based on an array of semiconductor diodes which are used to heat a thermochromic dye embedded in a solidified polyester resin with tissue-like optical properties. The array allows individual diodes to be addressed sequentially, thus simulating the movement of a small volume of contrasting optical ...

We screened soil samples for CO(2)-requiring extreme oligotrophs similar to Rhodococcus erythropolis N9T-4, which can grow on a basal salt agar medium without an organic carbon source. From 387 soil samples, three isolates were obtained and identified as Streptomyces spp. by 16S rDNA analysis. The isolates required gaseous CO(2) for growth and grew on a basal salt medium solidified by silica ge...

Representatives of only four well-characterized bacterial phyla were isolated from a pasture soil by using liquid serial dilution culture. In contrast, members of Acidobacteria, Verrucomicrobia, and Gemmatimonadetes and of other poorly represented bacterial lineages were isolated in earlier experiments with solidified versions of the same media. We conclude that, contrary to expectation, liquid...

monia. (By C. W. Ingraham, m.d., The New York Medical Journal, May 1895?In the two lungs there are five lobes. Suppose one lobe to be solidified, then the result will be a loss of one-fifth of the oxidising surface and blood capacity. Moreover, greater strain will be put on the vessels in the four unaffected lobes, in which the blood tension will be increased twenty per cent, above the normal. ...

A three step method using microwave irradiation enabled microscopic slides of human brain tissue to be obtained within one working day: steps 1 and 2 hardened and solidified brain tissue; step 3 completed formalin fixation. The efficacy and precision of the method was compared with slides of conventionally processed brain tissue that had been fixed in formalin for six weeks. The microscopic qua...