We study sympathetic cooling of the radial ion motion in a linear RF trap mixed barium-ytterbium chains. Barium ions are Doppler-cooled, while ytterbium cooled through their interaction with cold barium ions. estimate efficiency by measuring average occupation quantum numbers, and thus temperature, all normal modes chain. The full set orderings chain two have been probed, we show that thermal n...

Barium sulfate is an inert material used as a radiographic contrast medium during upper gastrointestinal contrast studies for evaluation of patients with dysphagia. Oral barium aspiration is an uncommon but wellreported complication of this procedure. While barium aspiration of small amounts may not cause any symptoms, massive barium aspiration can be life-threatening, particularly in elderly p...

in this study, lactic acid production by repeated batch fermentation using cell entrapped methods was compared. barium alginate beads, agar gel and polyurethane foam cubes were employed as carriers to immobilize lactobacillus casei subsp. casei for the purpose of l (+)-lactic acid production. increasing concentrations of lactic acid during fermentation were better tolerated by barium alginate e...

An in vivo study of skeletal muscle paralysis induced by intravenous barium chloride has been made in curarized and non-curarized rats. The influence of potassium and calcium chlorides, propranolol, ouabain, and prior adrenalectomy on the paralysis has also been studied. Paralysis is found to be due to a direct effect on skeletal muscle, and to correlate well with the development of hypokalaemi...

The barium enema is a safe and accurate diagnostic study of the colon but, in rare cases, causes complications, such as colonic perforation. A colon weakened by iatrogenic trauma due to the enema tip and/or retention balloon, or by disease is more likely to perforate during an enema than is a normal healthy bowel. Rarely the colon may burst due to excessive transmural pressure alone. We report ...