Surveying ionizing radiations of the surrounding with a smartphone provides a low-cost and convenient utility for the general public. We developed a smartphone application(App) that uses the built-in camera with a CMO...Surveying ionizing radiations of the surrounding with a smartphone provides a low-cost and convenient utility for the general public. We developed a smartphone application(App) that uses the built-in camera with a CMOS sensor and a radiation signal extraction algorithm.After a calibration through a series of radiation exposures,the App could display radiation dose rate and cumulative dose in real time without requiring covering the camera lens. A smartphone with this App can be used as a fast survey tool for ionizing radiations.展开更多
The composition and the diversity of the gut microbiome play a major role in the health and well-being of humans beginning at birth.The impact of the diet on the structure and the function of the gut microbiome is evi...The composition and the diversity of the gut microbiome play a major role in the health and well-being of humans beginning at birth.The impact of the diet on the structure and the function of the gut microbiome is evident by the changes in the gut microbiome concurrent with the transition from human milk to solid food.Complex oligosaccharides contained in milk are essential nutrients for commensal microbes in the infant gut.The most important commensal bacterium in the infant gut,bifidobacterium,requires a1,2 fucosylated oligosaccharides for growth.Because not all humans are able to secrete a1,2 fucosylated oligosaccharides into milk,the gut microbiome of infants and bifidobacteria,in particular,vary considerably between‘secretors’and‘non-secretors’.A paucity of a1,2 fucosylated oligosaccharides and bifidobacteria in the gut of infants may be associated with poor health.展开更多
基金supported in part by Fundamental Research Funds for the Central Universities(No.FRF-TP-15-114A1)the National Natural Science Foundation of China(No.11505300&11605008)
文摘Surveying ionizing radiations of the surrounding with a smartphone provides a low-cost and convenient utility for the general public. We developed a smartphone application(App) that uses the built-in camera with a CMOS sensor and a radiation signal extraction algorithm.After a calibration through a series of radiation exposures,the App could display radiation dose rate and cumulative dose in real time without requiring covering the camera lens. A smartphone with this App can be used as a fast survey tool for ionizing radiations.
文摘The composition and the diversity of the gut microbiome play a major role in the health and well-being of humans beginning at birth.The impact of the diet on the structure and the function of the gut microbiome is evident by the changes in the gut microbiome concurrent with the transition from human milk to solid food.Complex oligosaccharides contained in milk are essential nutrients for commensal microbes in the infant gut.The most important commensal bacterium in the infant gut,bifidobacterium,requires a1,2 fucosylated oligosaccharides for growth.Because not all humans are able to secrete a1,2 fucosylated oligosaccharides into milk,the gut microbiome of infants and bifidobacteria,in particular,vary considerably between‘secretors’and‘non-secretors’.A paucity of a1,2 fucosylated oligosaccharides and bifidobacteria in the gut of infants may be associated with poor health.
