For emergency department patients with shortness of breath and a risk of heart failure, physicians usually grab one thing first: a stethoscope（听诊器） . ...
A new optical imaging technique described in the journal Review of Scientific Instruments, which is published by the American Institute of Physics, ho...
Progestins（孕酮，黄体酮） are used in hormone replacement therapies to counteract（抵消，中和） the negative effects of estrogen（雌性激素） on the uterus（子宫） and reduce ...
Production of rice—the world's most important crop for ensuring food security and addressing poverty—will be thwarted（挫败，反对） as temper...
The authors of a new study in Biological Psychiatry explore pharmacological（药理学的） strategies for reducing cocaine self-administration in animals that ...
Sleek（圆滑的） design and ease of use are just two of the main reasons consumers are increasingly attracted to tablets and e-readers. And these devices ar...
Ever wonder why some people can sleep through just about anything, while others get startled awake at each and every bump in the night? A new report i...
A drop in the average temperature outside is linked to a higher risk of people having heart attacks, according to a new study published on bmj.com tod...
Astronomers using NASA's Fermi Gamma-ray Space Telescope have detected gamma-rays from a nova（新星） for the first time, a finding that stunned（震惊） o...
A new analysis of the unusually long solar cycle that ended in 2008 suggests that one reason for the long cycle could be a stretching of the Sun's...