Objective To explore a simple and convenient method of small intestine double contrast examination:small intestine double contrast radiography with air-barium by non-tube fast.Methods 130 cases were randomly divided into study group(67) and control group(63).In study group,the enteric-coated capsules to be full of aerogenic powder,barium and cisapride were taken orally by the patients,while in control group,only barium was given orally,and metoclopramide injected by muscle,then the small intestinal air-barium double contrast examinations were performed.Results In the study group,the effect of examinations was satisfactory,ordinary and no effect in 53,12 and 2 cases respectively,and one patients fell because of swallowing difficulty,the total efficiency was 97.02% and the average examination time was(34.63?16.66) minute.In the control group,the effect of examinations was all ordinary and lasted time was(77.12?32.98) minute.These two methods were of remarkable difference in effect and lasted time in statistics(P

Objective To study the effect of light intensity and light quality on the growth and total flavonoid accumulation of Erigeron breviscapus. Methods Young plants of E. breviscapus were planted under various color films and light intensities, their biomass and total flavonoid content were determined when plants flowered. Results The biomass and total flavonoid content of individuals under 100% and 80% sunshine were higher than those under 50% sunshine. The biomasses of plants under yellow, red, purple, or blue film were lower than those under white film. Under the blue film, the total flavonoid content of the plant was the highest; while under white film, the total flavonoid yield was the highest. Conclusion Light intensity and light quality significantly affect the growth and total flavonoid accummulation of E. breviscapus. The biomass and total flavonoid yield are the highest when under full sunshine.