Malia Obama has grown up in the public eye， but this next big step she’s taking is in private.　　The First Daughter， 17， ......

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Background: Despite worsening health the chronically ill oldest older persons have expressed feelings of inner strength,......

1.Objective Large-scale commercial production of shale gas started in Fuling,Changning and Weiyuan areas of the Sichuan ......

Method: 99 patients, 70 women and 29 men, mean age 84.2, were included. They were all hospitalized in the geriatric depa......

A femur fragment with an Early Lutetian (early Middle Eocene) age is the world’s oldest fossil record from a seal, and,......

Newly discovered remains of the early Middle Eocene (Lutetian) sirenian Protosiren (Protosirenidae) in shark tooth rich ......