Elevated blood levels of high-density lipoprotein (HDL高密度脂蛋白) or "good" cholesterol（胆固醇） , typically thought to protect against heart diseas...
A mechanism that regulates（调节，校准） stem-cell differentiation（细胞分化） in mice testes（睾丸） suggests a similar process that may trigger degenerative disease（...
Celia has exploded into a monster hurricane in the Eastern Pacific, and is now a Category 5 storm over open waters. NASA's Aqua（浅绿色） satellite cap...
US scientists reports discovery of a new mechanism of avian influenza（禽流感） virus circulation and transmission in nature A team of scientists, led by M...
On Sunday, NASA's historic Deep Impact spacecraft will fly past Earth for the fifth and last time on its current University of Maryland-led EPOXI ...
Scientists at the Department of Energy's Oak Ridge National Laboratory are planning a large-scale, long-term ecosystem experiment to test the effe...
ESA's Venus Express is helping planetary（行星的） scientists investigate whether Venus once had oceans. If it did, it may even have begun its existenc...
California's San Andreas fault is notorious（声名狼藉的） for repeatedly generating major earthquakes and for being on the brink of producing the next &q...
Cytomegalovirus (CMV巨细胞病毒) disease is a serious complication after allogeneic（同种异体的） hematopoietic（造血的） stem cell transplantation (allo-SCT), which is...
Radical cuts to social welfare spending to reduce budget deficits（预算赤字） could cause not just economic pain but cost lives, warn experts in a study pub...